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span{color:var(--cyan);font-weight:950;font-size:12px;text-transform:uppercase;letter-spacing:.08em}.progress{height:10px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--cyan),var(--blue));border-radius:999px}.timeline{display:grid;gap:16px;max-width:900px}.timeline-item{border:1px solid var(--line);border-radius:24px;padding:22px;background:rgba(255,255,255,.055);position:relative}.timeline-item span{color:var(--cyan);font-weight:950}.timeline-item.done{border-color:rgba(146,255,191,.25)}.timeline-item.active{border-color:rgba(124,242,255,.45);box-shadow:0 0 45px rgba(124,242,255,.08)}.notes-grid{grid-template-columns:repeat(4,1fr)}.note-card{padding:22px}.note-card.locked{filter:saturate(.85);background:linear-gradient(180deg,rgba(247,213,121,.08),rgba(255,255,255,.035))}.note-card button{margin-top:14px;width:100%}.problem-workspace,.coach-layout,.settings-grid{display:grid;grid-template-columns:1fr 360px;gap:18px}.problem-main textarea{width:100%;min-height:180px;resize:vertical;margin:14px 0;background:rgba(7,17,31,.92);color:#fff;border:1px solid var(--line);border-radius:18px;padding:14px}.streak-dots{display:flex;gap:8px;margin-top:18px}.streak-dots span{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--blue))}.coach-chat{display:grid;gap:12px}.chat-bubble{max-width:82%;padding:14px 16px;border-radius:20px;background:rgba(255,255,255,.07);color:var(--soft);line-height:1.55}.chat-bubble.user{margin-left:auto;background:rgba(124,242,255,.12);color:#eaffff}.chat-input{display:flex;gap:8px;margin-top:14px}.chat-input input{flex:1}.chat-input button{border:0;border-radius:16px;padding:0 18px;background:linear-gradient(135deg,var(--cyan),var(--blue));font-weight:950;color:#051020}.prompt-btn{width:100%;text-align:left;margin-top:10px}.settings-grid .app-panel label{display:grid;gap:7px;color:var(--soft);font-weight:850;margin:14px 0}.app-bg-formulas{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}.app-bg-formulas span{position:absolute;color:rgba(255,255,255,.045);font-weight:950;font-size:30px}.app-bg-formulas span:nth-child(1){left:46%;top:8%}.app-bg-formulas span:nth-child(2){right:4%;top:26%}.app-bg-formulas span:nth-child(3){left:42%;bottom:20%}.app-bg-formulas span:nth-child(4){right:10%;bottom:7%}
@media (max-width:1040px){.nav-links,.nav-right{display:none}.menu-btn{display:block}.mobile-menu.open{display:block}.hero-grid,.roadmap,.two-col-head,.auth-grid,.about-hero,.problem-workspace,.coach-layout,.settings-grid{grid-template-columns:1fr}.hero-visual{min-height:540px}.science-canvas{height:500px}.feature-grid,.video-grid,.pricing-grid,.labs-grid,.deep-grid,.faq-grid,.metric-grid,.notes-grid{grid-template-columns:repeat(2,1fr)}.branch-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.app-shell{grid-template-columns:1fr}.app-sidebar{position:relative;height:auto}.app-nav{grid-template-columns:repeat(4,1fr)}.sidebar-upgrade{display:none}.app-main{padding:24px}.course-card{grid-template-columns:1fr}.mini-video-grid{grid-template-columns:1fr}}
@media (max-width:680px){.container{width:min(var(--max),calc(100% - 22px))}.hero{padding:62px 0 48px}section{padding:58px 0}.hero h1,.page-hero.compact h1{font-size:44px}.hero p,.page-hero p{font-size:16px}.hero-stats,.feature-grid,.branch-grid,.video-grid,.pricing-grid,.labs-grid,.deep-grid,.faq-grid,.footer-grid,.metric-grid,.notes-grid{grid-template-columns:1fr}.hero-actions,.cta-panel,.library-top,.library-controls,.footer-bottom,.app-top{flex-direction:column;align-items:stretch}.btn{width:100%}.hero-visual{min-height:510px;border-radius:26px;padding:10px}.science-canvas{height:470px}.hero-video-card{left:12px;right:12px;bottom:12px;padding:18px}.hero-video-card h3{font-size:20px}.hero-mini{grid-template-columns:1fr}.page-hero{padding:56px 0 20px}.library-panel{padding:12px}.search,.sort-select{width:100%;min-width:0}.filter-tabs{overflow-x:auto;flex-wrap:nowrap;padding-bottom:6px}.tab{white-space:nowrap}.app-nav{grid-template-columns:1fr 1fr}.app-main{padding:18px}.app-sidebar{padding:16px}.course-card,.app-panel,.metric-card{border-radius:22px}.formula-map{grid-template-columns:1fr 1fr}.range-row{grid-template-columns:1fr}}


/* === Olympion v7 premium refinements === */
.hero-method-stage .method-animated-layer{opacity:.22;transition:opacity .35s ease, filter .35s ease;filter:saturate(.75) blur(.2px)}
.hero-method-stage:hover .method-animated-layer{opacity:1;filter:saturate(1.12) blur(0)}
.hover-hint{margin-top:10px;color:rgba(124,242,255,.82);font-size:12px;font-weight:800;letter-spacing:.03em}.pricing-strip-section{padding-top:42px}.four-plans{grid-template-columns:repeat(4,1fr)}.price-card h3{font-size:26px;letter-spacing:-.04em}.price{font-size:38px;font-weight:950;margin:16px 0}.price span{display:inline-block;color:var(--muted);font-size:14px;margin-left:5px}.price-card ul{margin:18px 0;padding-left:20px;color:var(--soft);line-height:1.9}.price-card.highlight{border-color:rgba(247,213,121,.38);box-shadow:0 34px 90px rgba(247,213,121,.12)}.mentor-card{background:linear-gradient(180deg,rgba(124,242,255,.08),rgba(255,255,255,.04))}.concept-card .problem-equation{display:none}.faq-mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.center-actions{display:flex;justify-content:center;margin-top:26px}.labs-showcase{display:grid;grid-template-columns:.95fr 1.05fr;gap:28px;align-items:center;border:1px solid var(--line);border-radius:36px;padding:18px;background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.035));box-shadow:var(--shadow)}.labs-visual-card{min-height:360px;border:1px solid rgba(255,255,255,.12);border-radius:28px;overflow:hidden;background:radial-gradient(circle at 50% 45%,rgba(124,242,255,.16),transparent 38%),#07101f}.labs-visual-inner{position:relative;height:318px;overflow:hidden}.lab-orb{position:absolute;border-radius:50%;filter:blur(.2px);box-shadow:0 0 55px rgba(124,242,255,.35)}.orb-a{width:76px;height:76px;background:var(--cyan);left:38%;top:38%;animation:floatOrb 5s ease-in-out infinite}.orb-b{width:42px;height:42px;background:var(--gold);left:18%;top:60%;animation:floatOrb 7s ease-in-out infinite reverse}.orb-c{width:48px;height:48px;background:var(--pink);right:18%;top:24%;animation:floatOrb 6.5s ease-in-out infinite}.lab-beam{position:absolute;left:10%;right:10%;top:50%;height:2px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);box-shadow:0 0 24px rgba(124,242,255,.45);animation:pulseBeam 2.6s ease-in-out infinite}.lab-formula{position:absolute;color:rgba(236,249,255,.7);font-weight:900;font-size:14px;border:1px solid rgba(255,255,255,.12);background:rgba(0,0,0,.22);padding:9px 11px;border-radius:999px}.lab-formula.f1{left:22px;top:42px}.lab-formula.f2{right:18px;bottom:42px}.lab-formula.f3{left:28px;bottom:78px}@keyframes floatOrb{0%,100%{transform:translateY(0)}50%{transform:translateY(-18px)}}@keyframes pulseBeam{0%,100%{opacity:.45}50%{opacity:1}}.labs-copy h2{font-size:clamp(32px,4vw,56px);letter-spacing:-.06em;line-height:1;margin:16px 0}.labs-copy p{color:var(--soft);line-height:1.8;font-size:18px}.video-hero-fixed .two-col-head{align-items:center}.centered-tags{justify-content:center;text-align:center}.pro-tags.centered-tags span{font-size:13px}.library-top{align-items:flex-start}.premium-note{text-align:center;background:rgba(124,242,255,.06);border:1px solid rgba(124,242,255,.16)}.video-card{cursor:pointer}.premium-video .thumb img{filter:saturate(.85) brightness(.82)}.premium-video:hover .thumb img{filter:saturate(1) brightness(.95)}.lock-chip{position:absolute;right:12px;top:12px;background:rgba(247,213,121,.94);color:#101012;border-radius:999px;padding:7px 10px;font-size:11px;font-weight:950}.premium-modal{position:fixed;inset:0;background:rgba(2,5,12,.72);backdrop-filter:blur(12px);z-index:100;display:none;align-items:center;justify-content:center;padding:20px}.premium-modal.open{display:flex}.premium-modal-card{width:min(520px,100%);border:1px solid rgba(255,255,255,.16);border-radius:30px;padding:28px;background:linear-gradient(180deg,rgba(12,22,40,.96),rgba(5,9,20,.96));box-shadow:0 40px 100px rgba(0,0,0,.55);position:relative}.premium-modal-card h2{font-size:34px;line-height:1;letter-spacing:-.055em;margin:16px 0}.premium-modal-card p{color:var(--soft);line-height:1.7}.modal-close{position:absolute;right:18px;top:18px;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.08);color:#fff;font-size:22px}.modal-plans{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:20px 0}.modal-plans button{border:1px solid var(--line);background:rgba(255,255,255,.06);color:#fff;border-radius:18px;padding:12px;font-weight:900}.modal-plans button.active{background:rgba(124,242,255,.18);border-color:rgba(124,242,255,.48)}.flashcard-wrap{perspective:1300px;max-width:860px;margin:auto}.flashcard{min-height:430px;position:relative;transform-style:preserve-3d;transition:transform .65s cubic-bezier(.2,.8,.2,1);cursor:pointer}.flashcard.flipped{transform:rotateY(180deg)}.flashcard-face{position:absolute;inset:0;backface-visibility:hidden;border:1px solid var(--line);border-radius:34px;padding:38px;background:linear-gradient(180deg,rgba(255,255,255,.09),rgba(255,255,255,.045));box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:center}.flashcard-face h2{font-size:clamp(30px,5vw,52px);letter-spacing:-.06em;line-height:1.05}.flashcard-face p,.flashcard-face li{color:var(--soft);line-height:1.8;font-size:17px}.flashcard-back{transform:rotateY(180deg)}.flip-hint{color:var(--cyan);font-weight:900;margin-top:18px}.form-section{padding-top:36px}.mentor-form{border:1px solid var(--line);border-radius:34px;background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.04));box-shadow:var(--shadow);padding:28px}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.mentor-form label{display:flex;flex-direction:column;gap:8px;color:var(--soft);font-weight:800}.mentor-form input,.mentor-form select,.mentor-form textarea,.auth-card input,.auth-card select{width:100%;border:1px solid rgba(255,255,255,.13);border-radius:18px;background:rgba(255,255,255,.06);color:#fff;padding:14px;outline:none}.mentor-form textarea{resize:vertical}.form-status{color:var(--green);font-weight:800}.compare-table{overflow:auto}.compare-table table{width:100%;border-collapse:collapse;min-width:820px}.compare-table th,.compare-table td{padding:16px;border-bottom:1px solid rgba(255,255,255,.09);text-align:left}.compare-table th{color:#fff;background:rgba(255,255,255,.06)}.compare-table td{color:var(--soft)}.faq-accordion{max-width:940px}.faq-accordion-item{border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.035));border-radius:24px;margin-bottom:14px;overflow:hidden}.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;gap:18px;background:transparent;color:#fff;border:0;padding:22px 24px;text-align:left;font-size:18px;font-weight:950}.faq-question b{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:rgba(124,242,255,.12);color:var(--cyan)}.faq-answer{max-height:0;overflow:hidden;transition:max-height .28s ease}.faq-accordion-item.open .faq-answer{max-height:240px}.faq-answer p{color:var(--soft);line-height:1.8;margin:0;padding:0 24px 24px}.creator-avatar{width:94px;height:94px;border-radius:30px;display:grid;place-items:center;background:linear-gradient(135deg,var(--cyan),var(--blue));color:#07101f;font-size:44px;font-weight:950;box-shadow:0 0 48px rgba(124,242,255,.2);margin-bottom:18px}.deep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.legal-doc{max-width:920px;border:1px solid var(--line);border-radius:34px;background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.035));box-shadow:var(--shadow);padding:32px}.legal-doc h2{margin-top:28px}.legal-doc p{color:var(--soft);line-height:1.85}.legal-warning{padding:14px 16px;border-radius:18px;background:rgba(247,213,121,.1);border:1px solid rgba(247,213,121,.28);color:#fff}.payment-logos{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.payment-logos span{border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);border-radius:10px;padding:7px 10px;font-size:12px;font-weight:950;letter-spacing:.04em;color:#fff}.premium-login-page{min-height:100vh;background:radial-gradient(circle at 18% 12%,rgba(124,242,255,.16),transparent 28%),radial-gradient(circle at 82% 75%,rgba(247,213,121,.10),transparent 28%),linear-gradient(135deg,#030711,#091527 60%,#030711)}.auth-layout-v2{position:relative;z-index:5;min-height:100vh;width:min(1120px,calc(100% - 42px));margin:auto;display:grid;grid-template-columns:1fr 440px;gap:44px;align-items:center}.auth-brand{position:absolute;top:32px;left:0}.auth-copy-panel h1{font-size:clamp(42px,6vw,76px);line-height:.95;letter-spacing:-.075em;margin:18px 0}.auth-copy-panel p{color:var(--soft);font-size:18px;line-height:1.8}.auth-highlights{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.auth-highlights span{border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);padding:10px 12px;border-radius:999px;color:#fff;font-weight:850}.premium-auth-card{border:1px solid rgba(255,255,255,.16);border-radius:34px;background:rgba(7,17,31,.78);box-shadow:0 40px 100px rgba(0,0,0,.5);backdrop-filter:blur(24px);padding:26px}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;background:rgba(255,255,255,.06);border-radius:20px;padding:6px;margin-bottom:20px}.auth-tab{border:0;border-radius:15px;padding:12px;background:transparent;color:var(--soft);font-weight:950}.auth-tab.active{background:linear-gradient(135deg,var(--cyan),var(--blue));color:#06101d}.auth-card label{display:flex;flex-direction:column;gap:8px;color:var(--soft);font-weight:800;margin-bottom:14px}.register-only{display:none!important}.register-mode .register-only{display:flex!important}.auth-note{color:var(--muted);line-height:1.6;font-size:13px}.locked-lab{min-height:310px;position:relative;overflow:hidden;background:radial-gradient(circle at 50% 20%,rgba(124,242,255,.18),transparent 38%),linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.04))}.locked-lab:before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(124,242,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(124,242,255,.08) 1px,transparent 1px);background-size:26px 26px;filter:blur(2px);opacity:.7}.lock-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:28px;backdrop-filter:blur(5px);background:linear-gradient(180deg,rgba(5,9,20,.20),rgba(5,9,20,.72))}.calculator-card .search{margin:12px 0}.calc-result{margin-top:12px;min-height:44px;padding:13px;border-radius:16px;background:rgba(255,255,255,.06);color:#fff;font-weight:900}.muted-small{color:var(--muted);font-size:13px}.search,.sort-select,.sort-select option{background:#0b1728;color:#f7fbff}.site-footer .footer-grid a[href="#"]{display:none}
@media (max-width:1050px){.four-plans{grid-template-columns:repeat(2,1fr)}.deep-grid,.faq-mini-grid{grid-template-columns:1fr}.labs-showcase{grid-template-columns:1fr}.auth-layout-v2{grid-template-columns:1fr;align-content:center;padding:110px 0 40px}.premium-auth-card{max-width:520px}.branch-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:760px){.container{width:min(100% - 28px,var(--max))}.nav{height:72px}.nav-links,.nav-right{display:none}.menu-btn{display:grid}.mobile-menu.open{display:block}.mobile-menu{max-height:calc(100vh - 72px);overflow:auto}.mobile-login{display:inline-flex!important;margin-top:12px}.hero{padding:70px 0 48px}.hero-grid,.roadmap,.two-col-head,.app-grid{grid-template-columns:1fr!important}.hero-visual{min-height:500px}.science-canvas{height:430px}.hero-video-card{left:16px;right:16px;bottom:16px}.hero-stats,.hero-mini,.feature-grid,.pricing-grid,.notes-grid,.metric-grid,.labs-grid,.four-plans{grid-template-columns:1fr}.branch-grid{grid-template-columns:1fr}.filter-tabs{display:flex;overflow-x:auto;white-space:nowrap;padding-bottom:8px}.filter-tabs .tab{flex:0 0 auto}.library-controls{width:100%;grid-template-columns:1fr!important}.pro-tags{width:100%;display:flex;overflow-x:auto;justify-content:flex-start!important}.pro-tags span{flex:0 0 auto}.form-grid{grid-template-columns:1fr}.auth-layout-v2{width:min(100% - 28px,1120px)}.auth-brand{top:22px}.payment-logos{margin-bottom:8px}.modal-plans{grid-template-columns:1fr}.flashcard{min-height:560px}.flashcard-face{padding:25px}.labs-visual-card{min-height:300px}.labs-visual-inner{height:260px}}

/* === Olympion v8 premium refinements === */
.boot-loader{position:fixed;inset:0;z-index:9999;display:grid;place-items:center;background:radial-gradient(circle at 50% 35%,rgba(124,242,255,.16),transparent 32%),linear-gradient(180deg,#020610,#081322);transition:opacity .45s ease,visibility .45s ease}.boot-loader.hide{opacity:0;visibility:hidden}.boot-mark{width:72px;height:72px;border-radius:24px;display:grid;place-items:center;background:linear-gradient(135deg,var(--cyan),var(--blue));color:#06101d;font-size:36px;font-weight:950;box-shadow:0 0 70px rgba(124,242,255,.35)}.boot-copy{margin-top:92px;position:absolute;color:#dffcff;font-weight:900;letter-spacing:.08em;text-transform:uppercase;font-size:12px}.boot-line{position:absolute;margin-top:138px;width:190px;height:2px;border-radius:999px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);animation:bootLine 1.2s infinite}@keyframes bootLine{0%{transform:scaleX(.18);opacity:.45}50%{transform:scaleX(1);opacity:1}100%{transform:scaleX(.18);opacity:.45}}

.method-orb-visible .method-animated-layer{opacity:.68!important;filter:saturate(1.18) brightness(1.08)}.method-orb-visible:hover .method-animated-layer,.science-canvas:hover .method-animated-layer{opacity:1!important}.method-sphere{position:absolute;inset:23% 24%;border-radius:50%;background:radial-gradient(circle at 35% 30%,rgba(255,255,255,.7),rgba(124,242,255,.28) 26%,rgba(122,167,255,.12) 48%,transparent 70%);border:1px solid rgba(124,242,255,.28);box-shadow:inset 0 0 50px rgba(124,242,255,.12),0 0 70px rgba(124,242,255,.2);animation:floatOrb 5s ease-in-out infinite}.method-orb-visible .hero-video-card{background:linear-gradient(180deg,rgba(7,17,31,.78),rgba(5,9,20,.72));backdrop-filter:blur(18px)}

.four-branch-grid{grid-template-columns:repeat(4,1fr)!important}.branch-deep-grid{grid-template-columns:repeat(4,1fr)!important}.branch-deep-grid .deep-card h2{font-size:26px}.pricing-strip-section .center-actions{margin-top:22px}.library-head-clean .pro-tags{justify-content:center}.library-panel{overflow:hidden}.library-top{gap:18px}.filter-tabs{max-width:100%}.pro-tags span{box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}

.cmp{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:999px;font-weight:950;font-size:18px}.cmp.yes{background:rgba(146,255,191,.15);color:#92ffbf;border:1px solid rgba(146,255,191,.36)}.cmp.no{background:rgba(255,105,105,.13);color:#ff8585;border:1px solid rgba(255,105,105,.34)}.cmp.limited{background:rgba(247,213,121,.15);color:#f7d579;border:1px solid rgba(247,213,121,.4)}.compare-table td:not(:first-child),.compare-table th:not(:first-child){text-align:center}.compare-table td:first-child{font-weight:800;color:#e8f5ff}

.google-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.92);color:#111827;border-radius:18px;padding:13px 14px;font-weight:950;margin-bottom:14px}.google-btn svg{width:22px;height:22px}.auth-separator{text-align:center;color:var(--muted);font-size:12px;font-weight:800;margin:8px 0 16px;position:relative}.auth-separator span{background:rgba(7,17,31,.92);padding:0 12px;position:relative}.auth-separator:before{content:'';position:absolute;left:0;right:0;top:50%;height:1px;background:rgba(255,255,255,.1)}.auth-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:2px 0 14px}.remember-row{display:flex!important;flex-direction:row!important;align-items:center;gap:8px!important;margin:0!important;color:var(--muted)!important;font-size:13px}.remember-row input{width:auto!important}.forgot-link{color:var(--cyan);font-weight:850;font-size:13px}

.pay-logo{height:34px;min-width:66px;display:inline-grid;place-items:center;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);border-radius:11px;padding:0 8px}.pay-logo svg{width:64px;height:24px}.pay-logo text{font-family:Inter,system-ui,sans-serif;font-weight:950;fill:#fff;font-size:14px;letter-spacing:.06em}.pay-logo.mc circle:first-child{fill:#ff6a3d;opacity:.9}.pay-logo.mc circle:nth-child(2){fill:#f7d579;opacity:.9}.pay-logo.visa text{fill:#b9d6ff}.pay-logo.troy text{fill:#92ffbf}.pay-logo.iyzico text{fill:#dffcff}

.calc-shell{border:1px solid rgba(255,255,255,.12);background:rgba(0,0,0,.18);border-radius:24px;padding:14px}.calc-display{min-height:58px;border-radius:18px;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:flex-end;padding:0 16px;font-size:24px;font-weight:950;letter-spacing:-.03em;overflow:hidden}.calc-keypad{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:12px}.calc-keypad button{border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.07);color:#fff;border-radius:14px;min-height:44px;font-weight:950}.calc-keypad button:hover{background:rgba(124,242,255,.12);border-color:rgba(124,242,255,.34)}.calc-clear{background:rgba(255,105,105,.18)!important}.calc-equals{grid-column:span 3;background:linear-gradient(135deg,var(--cyan),var(--blue))!important;color:#06101d!important}.lab-controls{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.lab-controls label{min-width:0}.lab-category-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}.lab-category-tabs span{border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);padding:10px 14px;border-radius:999px;font-weight:900}.app-labs-grid{margin-top:8px}

.watch-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:22px;padding:44px 0}.watch-player{position:relative;border-radius:30px;overflow:hidden;border:1px solid var(--line);background:#000;box-shadow:var(--shadow);aspect-ratio:16/9}.watch-player iframe{width:100%;height:100%;border:0}.watch-main h1{font-size:clamp(30px,4vw,52px);line-height:1.05;letter-spacing:-.055em;margin:20px 0 8px}.watch-main p,.watch-list{color:var(--soft);line-height:1.7}.watch-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.watch-side{display:grid;gap:16px;align-self:start}.focus-mode .site-header,.focus-mode .site-footer,.focus-mode .watch-side,.focus-mode .formula-layer{display:none}.focus-mode .watch-layout{grid-template-columns:1fr;width:min(1180px,100% - 24px)}.focus-mode .watch-player{border-radius:18px}.focus-mode{background:#000!important}.pdf-viewer-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:22px;padding-bottom:70px}.pdf-panel,.note-pad{border:1px solid var(--line);border-radius:30px;background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.04));box-shadow:var(--shadow);padding:20px}.pdf-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.pdf-toolbar button{width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.07);color:#fff}.pdf-page{min-height:560px;border-radius:22px;background:linear-gradient(180deg,#eef7ff,#cbd9e8);color:#081322;padding:38px}.pdf-page h2{font-size:42px;letter-spacing:-.06em}.formula-box{margin:24px 0;padding:18px;border-radius:18px;background:#081322;color:#dffcff;font-weight:950}.note-pad textarea{width:100%;min-height:260px;border:1px solid var(--line);background:rgba(255,255,255,.06);border-radius:18px;color:#fff;padding:16px;resize:vertical;margin-bottom:14px}

.continue-card{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px}.progress-track{height:9px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:14px}.progress-track i{display:block;height:100%;background:linear-gradient(90deg,var(--cyan),var(--blue));border-radius:inherit}.heatmap{display:grid;grid-template-columns:repeat(14,1fr);gap:6px}.heatmap span{aspect-ratio:1;border-radius:7px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.06)}.heatmap span.hot{background:rgba(124,242,255,.25);border-color:rgba(124,242,255,.34);box-shadow:0 0 18px rgba(124,242,255,.12)}.advanced-settings{grid-template-columns:1.2fr 1fr}.forgot-big{display:inline-flex;margin-top:14px;color:var(--cyan);font-weight:900}.switch-row{display:flex!important;flex-direction:row!important;align-items:center;gap:10px!important;margin:12px 0!important;color:var(--soft)!important}.switch-row input{width:auto!important}.settings-grid input,.settings-grid select{width:100%;border:1px solid rgba(255,255,255,.13);border-radius:18px;background:rgba(255,255,255,.06);color:#fff;padding:13px}.settings-grid label{display:flex;flex-direction:column;gap:8px;margin:12px 0;color:var(--soft);font-weight:800}.settings-grid small{font-weight:700;color:var(--muted)}

@media (max-width:1050px){.four-branch-grid,.branch-deep-grid{grid-template-columns:repeat(2,1fr)!important}.watch-layout,.pdf-viewer-layout{grid-template-columns:1fr}.advanced-settings{grid-template-columns:1fr}.continue-card{flex-direction:column;align-items:flex-start}}
@media (max-width:760px){body{overflow-x:hidden}.site-header{z-index:50}.nav{height:auto;min-height:68px;gap:10px}.brand{min-width:0}.brand small{max-width:180px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.menu-btn{align-self:center;margin-left:auto}.mobile-menu.open{display:block}.mobile-login{padding:10px 13px!important;font-size:13px!important;width:auto!important}.hero-grid{gap:24px}.hero-visual{min-height:360px!important;order:2}.science-canvas{height:330px!important}.hero-video-card{position:absolute;left:12px!important;right:12px!important;bottom:12px!important;padding:18px!important}.hero-video-card h3{font-size:22px}.method-sphere{inset:12% 18%}.hero-stats{grid-template-columns:repeat(2,1fr)!important}.library-section .container,.video-hero-fixed .container{width:min(100% - 20px,var(--max))}.library-panel{padding:16px!important}.library-top{display:grid!important;grid-template-columns:1fr!important}.filter-tabs{display:flex;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch;padding-bottom:8px}.filter-tabs .tab{flex:0 0 auto}.library-controls{display:grid!important;grid-template-columns:1fr!important;width:100%}.video-grid{grid-template-columns:1fr!important;max-width:100%}.pro-tags{justify-content:flex-start!important;overflow-x:auto;white-space:nowrap;padding-bottom:8px}.pro-tags span{flex:0 0 auto}.labs-grid,.enhanced-labs{grid-template-columns:1fr!important}.lab-controls{grid-template-columns:1fr}.lab-card label{display:block;margin-top:10px}.calc-keypad button{min-height:42px}.four-branch-grid,.branch-deep-grid{grid-template-columns:1fr!important}.compare-table{margin-left:-8px;margin-right:-8px}.auth-layout-v2{padding-top:96px}.premium-auth-card{padding:20px}.auth-row{align-items:flex-start;flex-direction:column}.payment-logos{justify-content:flex-start}.watch-layout{padding-top:24px}.watch-actions .btn{width:100%}.pdf-page{min-height:420px;padding:24px}.heatmap{grid-template-columns:repeat(7,1fr)}.app-shell{grid-template-columns:1fr}.app-sidebar{position:relative;width:auto;min-height:auto}.app-main{padding:22px 14px}.app-nav{display:flex;overflow-x:auto;padding-bottom:10px}.app-link{flex:0 0 auto}.sidebar-upgrade,.back-site{display:none}}


/* =========================
   Olympion v9 refinement patch
   ========================= */
:root{--safe-bottom:env(safe-area-inset-bottom,0px)}
html,body{max-width:100%;overflow-x:hidden}.public-page,.app-page{min-width:0}.site-main{overflow:hidden}

/* Hero method visual: make the orbit/sphere actually visible */
.method-animated-layer{position:absolute;inset:0;z-index:1;opacity:.98!important;filter:saturate(1.28) brightness(1.12);transition:opacity .28s ease,filter .28s ease,transform .28s ease;pointer-events:none}.science-canvas:hover .method-animated-layer,.method-orb-visible:hover .method-animated-layer{opacity:1!important;filter:saturate(1.55) brightness(1.35);transform:scale(1.015)}.method-sphere{inset:auto!important;width:285px;height:285px;right:78px;top:24px;opacity:.92;background:radial-gradient(circle at 32% 28%,rgba(255,255,255,.95),rgba(124,242,255,.55) 20%,rgba(122,167,255,.24) 48%,rgba(124,242,255,.06) 70%,transparent 73%);box-shadow:inset 0 0 65px rgba(124,242,255,.28),0 0 95px rgba(124,242,255,.35),0 0 160px rgba(122,167,255,.18)}.method-animated-layer .orbit-ring{opacity:.88;border-color:rgba(124,242,255,.36)}.method-animated-layer .glow-core{opacity:.82;top:30%;left:66%;width:92px;height:92px}.method-animated-layer .axis-x,.method-animated-layer .axis-y{opacity:.28}.method-animated-layer .vector{opacity:.92}.method-animated-layer .eq-chip{opacity:.78;background:rgba(3,8,17,.54)}.glass-focus{z-index:3;transition:background .28s ease,backdrop-filter .28s ease,border-color .28s ease,box-shadow .28s ease}.science-canvas:hover .glass-focus{background:linear-gradient(180deg,rgba(7,17,31,.62),rgba(5,9,20,.54));backdrop-filter:blur(11px);border-color:rgba(124,242,255,.32);box-shadow:0 28px 80px rgba(0,0,0,.35),0 0 70px rgba(124,242,255,.08)}
.large-labs-visual .labs-visual-inner,.labs-visual-inner{overflow:hidden}

/* Footer payment logos - white cards and centered real-looking marks */
.payment-logos{align-items:center;gap:10px}.payment-logos .pay-logo{width:86px;height:40px;display:grid;place-items:center;background:linear-gradient(180deg,#fff,#eef4fb)!important;border:1px solid rgba(255,255,255,.75)!important;border-radius:14px!important;padding:0!important;box-shadow:0 12px 28px rgba(0,0,0,.18)}.payment-logos svg{width:70px;height:26px;display:block}.payment-logos text{font-family:Inter,Arial,sans-serif;font-weight:950;letter-spacing:.02em;fill:#172033}.payment-logos .visa text{fill:#1a4fb5}.payment-logos .troy text{fill:#0b58a8}.payment-logos .iyzico text{fill:#1f2937}.payment-logos .mc circle:first-child{fill:#eb001b}.payment-logos .mc circle:nth-child(2){fill:#f79e1b;mix-blend-mode:multiply}

/* Video library robustness */
.library-section,.video-hero-fixed{overflow:hidden}.library-panel{max-width:100%;overflow:hidden}.library-top{align-items:center}.centered-tags{justify-content:center;text-align:center}.video-grid{width:100%;min-width:0}.video-card{cursor:pointer;min-width:0}.video-body h3{word-break:normal;overflow-wrap:anywhere}.premium-note{display:flex;align-items:center;gap:8px;justify-content:center;text-align:center}.filter-tabs,.pro-tags{min-width:0}.search,.sort-select{max-width:100%}

/* App shell refinements */
.app-page{background:radial-gradient(circle at 24% 2%,rgba(124,242,255,.09),transparent 31%),linear-gradient(180deg,#050914,#040712)}.app-shell{display:grid;grid-template-columns:286px minmax(0,1fr);min-height:100vh}.app-sidebar{z-index:30}.app-main{min-width:0}.app-top{min-width:0}.app-grid,.metric-grid,.course-list,.timeline{min-width:0}.app-panel,.metric-card,.course-card,.note-card{min-width:0}.continue-card{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px}.progress-track,.progress{height:9px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:12px}.progress-track i,.progress i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--blue))}.course-list{display:grid;gap:16px}.course-card{padding:22px;display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center}.course-card .progress{grid-column:1/-1}.course-card a{color:var(--cyan);font-weight:950}

/* Course watch page */
.lesson-page-grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:20px;align-items:start}.lesson-player{aspect-ratio:16/9;border:1px solid var(--line);border-radius:28px;background:#000;overflow:hidden;box-shadow:var(--shadow)}.lesson-player iframe,.lesson-player>div{width:100%;height:100%}.lesson-meta{margin-top:18px}.lesson-meta h1{font-size:clamp(30px,4vw,52px);line-height:1.05;letter-spacing:-.055em;margin:8px 0}.lesson-meta p{color:var(--soft);line-height:1.7}.lesson-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.playlist-panel{position:sticky;top:20px;padding:18px}.playlist-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}.playlist-head h2{margin:0}.lesson-progress-ring{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--cyan) var(--p,0%),rgba(255,255,255,.10) 0);font-weight:950;color:#07101f;box-shadow:inset 0 0 0 6px rgba(7,17,31,.95);color:var(--text)}.lesson-list{display:grid;gap:10px;max-height:70vh;overflow:auto;padding-right:4px}.lesson-item{display:grid;grid-template-columns:34px 1fr auto;gap:10px;align-items:center;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.055);border-radius:18px;padding:10px;color:var(--soft);cursor:pointer}.lesson-item:hover,.lesson-item.active{border-color:rgba(124,242,255,.36);background:rgba(124,242,255,.09);color:#fff}.lesson-item.done .check{background:rgba(146,255,191,.18);color:var(--green);border-color:rgba(146,255,191,.35)}.lesson-item.locked{opacity:.72}.check{width:30px;height:30px;border:1px solid rgba(255,255,255,.14);border-radius:50%;display:grid;place-items:center;font-weight:950}.lesson-item-title{font-weight:900;line-height:1.25}.lesson-item small{display:block;color:var(--muted);margin-top:3px}.lesson-item .duration{position:static;background:rgba(255,255,255,.08);font-size:11px}.lesson-complete-note{color:var(--muted);font-size:13px;line-height:1.55;margin-top:14px}.lesson-empty{padding:22px;text-align:center;color:var(--muted)}

/* Roadmap graph */
.roadmap-graph{position:relative;min-height:470px;border:1px solid var(--line);border-radius:32px;background:radial-gradient(circle at 50% 45%,rgba(124,242,255,.12),transparent 42%),rgba(255,255,255,.045);box-shadow:var(--shadow);overflow:hidden;margin-bottom:20px}.roadmap-graph:before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(124,242,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(124,242,255,.08) 1px,transparent 1px);background-size:34px 34px;mask-image:radial-gradient(circle,#000 34%,transparent 82%)}.road-node{position:absolute;z-index:2;width:160px;min-height:86px;border:1px solid rgba(124,242,255,.22);border-radius:22px;background:rgba(7,17,31,.80);backdrop-filter:blur(18px);padding:14px;box-shadow:0 18px 44px rgba(0,0,0,.24)}.road-node strong{display:block;color:#fff}.road-node span{color:var(--muted);font-size:12px}.road-node.done{border-color:rgba(146,255,191,.34)}.road-node.active{border-color:rgba(124,242,255,.55);box-shadow:0 0 48px rgba(124,242,255,.14)}.road-node.locked{opacity:.72}.road-line{position:absolute;height:2px;background:linear-gradient(90deg,rgba(124,242,255,.12),rgba(124,242,255,.62),rgba(124,242,255,.12));transform-origin:left center;z-index:1}.n1{left:6%;top:38%}.n2{left:31%;top:18%}.n3{left:55%;top:40%}.n4{left:76%;top:18%}.n5{left:31%;top:64%}.n6{left:62%;top:68%}.l1{left:19%;top:38%;width:210px;transform:rotate(-22deg)}.l2{left:44%;top:30%;width:185px;transform:rotate(24deg)}.l3{left:68%;top:38%;width:150px;transform:rotate(-32deg)}.l4{left:42%;top:54%;width:210px;transform:rotate(18deg)}.l5{left:48%;top:73%;width:170px;transform:rotate(0deg)}

/* Labs/cards polish */
.lab-card{min-width:0}.lab-canvas{max-width:100%;width:100%;min-height:180px}.lab-controls label{color:var(--soft);font-size:13px;font-weight:850}.lab-controls input{width:100%}.app-labs-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.lab-category-tabs{position:sticky;top:0;z-index:6;background:linear-gradient(180deg,rgba(5,9,20,.96),rgba(5,9,20,.72));backdrop-filter:blur(16px);padding:8px 0 12px}.lab-category-tabs span{cursor:default}.more-labs-strip{margin-top:18px;text-align:center;border:1px solid rgba(124,242,255,.22);background:rgba(124,242,255,.07);border-radius:24px;padding:18px}.more-labs-strip p{color:var(--soft);margin:6px 0 14px}

/* Typography small refinements */
.hero p,.page-hero p{max-width:680px}.page-hero.compact{padding-bottom:44px}.app-top .btn{white-space:nowrap}

@media (min-width:1120px){.hero-visual{min-height:650px}.science-canvas{height:590px}.hero-video-card{left:44px;right:44px;bottom:44px}.video-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:980px){.hero-grid{grid-template-columns:1fr}.hero-visual{order:2}.video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-page-grid{grid-template-columns:1fr}.playlist-panel{position:relative;top:auto}.app-labs-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.course-card{grid-template-columns:1fr}.road-node{position:relative!important;left:auto!important;top:auto!important;width:auto}.road-line{display:none}.roadmap-graph{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;min-height:auto;padding:16px}}
@media (max-width:760px){body{width:100%;overflow-x:hidden}.container{width:min(100% - 26px,var(--max))}.site-header{position:sticky}.nav{display:grid;grid-template-columns:minmax(0,1fr) auto;min-height:68px;height:auto;padding:10px 0}.brand-badge{width:38px;height:38px;border-radius:14px}.brand{gap:10px}.brand>div:last-child{min-width:0}.brand small{font-size:10px}.menu-btn{position:relative;top:auto;right:auto;display:grid}.mobile-menu.open{display:block;border-top:1px solid rgba(255,255,255,.08)}.mobile-login{justify-content:center;max-width:180px}.hero{padding:48px 0 38px}.hero h1{font-size:clamp(42px,14vw,58px);line-height:.96;letter-spacing:-.07em}.hero p{font-size:16px;line-height:1.65}.hero-actions .btn{width:100%}.hero-grid{gap:20px}.hero-visual{display:block!important;min-height:455px!important;padding:10px;border-radius:28px}.science-stage{border-radius:22px}.science-canvas{height:430px!important}.method-sphere{width:210px;height:210px;right:24px;top:22px}.method-animated-layer .r1{width:240px;height:84px}.method-animated-layer .r2{width:190px;height:190px}.method-animated-layer .r3{width:84px;height:250px}.method-animated-layer .orbit-ring{left:64%;top:27%}.method-animated-layer .glow-core{left:64%;top:27%;width:66px;height:66px}.method-animated-layer .eq-chip{font-size:10px;padding:7px 9px}.hero-video-card{top:auto!important;left:12px!important;right:12px!important;bottom:12px!important;padding:16px!important}.hero-video-card h3{font-size:21px!important;line-height:1.15}.hero-video-card p{font-size:14px;line-height:1.55}.hero-mini{grid-template-columns:1fr!important;gap:7px}.hero-mini div{padding:10px}.hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))!important}.section-title h2{font-size:clamp(30px,10vw,44px)}.pricing-grid.four-plans{grid-template-columns:1fr!important}.payment-logos{justify-content:center}.payment-logos .pay-logo{width:78px;height:38px}.footer-grid{gap:26px}.library-section{padding-top:34px}.library-panel{padding:14px!important;border-radius:24px}.library-top{display:block!important}.filter-tabs{display:flex!important;flex-wrap:nowrap!important;overflow-x:auto!important;white-space:nowrap!important;margin-bottom:12px;padding:0 0 8px;-webkit-overflow-scrolling:touch}.filter-tabs .tab{flex:0 0 auto}.library-controls{display:grid!important;grid-template-columns:1fr!important;gap:10px!important}.search{min-width:0!important;width:100%}.sort-select{width:100%}.pro-tags{display:flex!important;flex-wrap:nowrap!important;overflow-x:auto!important;justify-content:flex-start!important;max-width:100%;padding-bottom:8px}.pro-tags span{flex:0 0 auto}.video-grid{grid-template-columns:1fr!important;gap:14px}.video-card{border-radius:22px}.premium-note{font-size:13px;line-height:1.5;align-items:flex-start}.app-shell{display:block;min-height:100vh}.app-sidebar{position:fixed!important;left:0;right:0;bottom:0;top:auto!important;height:auto!important;min-height:0!important;width:100%;padding:8px 8px calc(8px + var(--safe-bottom))!important;border-right:0;border-top:1px solid rgba(255,255,255,.12);background:rgba(3,8,17,.90);backdrop-filter:blur(22px);z-index:90}.app-sidebar .app-brand,.sidebar-upgrade,.back-site{display:none!important}.app-nav{display:flex!important;gap:6px;overflow-x:auto;white-space:nowrap;padding:0 2px;-webkit-overflow-scrolling:touch}.app-link{flex:0 0 76px;display:flex!important;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:4px;padding:8px 6px;border-radius:15px;font-size:10.5px;line-height:1.15;min-height:58px}.app-link span{width:auto;font-size:18px}.app-main{padding:24px 14px calc(96px + var(--safe-bottom))!important;width:100%;max-width:none}.app-top{display:block}.app-top h1{font-size:clamp(32px,10vw,44px);line-height:1}.app-top .btn{width:100%;margin-top:10px}.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:12px}.metric-card{padding:16px}.metric-card strong{font-size:27px}.app-grid{grid-template-columns:1fr!important}.continue-card{display:block}.continue-card .btn{margin-top:12px;width:100%}.mini-video-grid{grid-template-columns:1fr!important}.course-card{padding:18px}.lesson-page-grid{grid-template-columns:1fr;gap:16px}.lesson-player{border-radius:20px}.lesson-actions .btn{width:100%}.playlist-panel{padding:14px;border-radius:22px}.lesson-list{max-height:none}.lesson-item{grid-template-columns:30px minmax(0,1fr);align-items:start}.lesson-item .duration{grid-column:2}.labs-grid,.enhanced-labs,.app-labs-grid{grid-template-columns:1fr!important}.lab-card{padding:18px}.lab-controls{grid-template-columns:1fr!important;gap:12px}.calc-keypad{gap:7px}.calc-keypad button{min-height:48px}.roadmap-graph{grid-template-columns:1fr;padding:14px}.watch-layout{grid-template-columns:1fr!important;width:min(100% - 26px,var(--max));padding:26px 0}.watch-actions .btn{width:100%}.pdf-viewer-layout{grid-template-columns:1fr}.flashcard{min-height:540px}.auth-layout-v2{grid-template-columns:1fr!important;padding-top:96px;padding-bottom:30px}.auth-copy-panel h1{font-size:clamp(38px,12vw,54px)}.premium-auth-card{border-radius:28px}}


/* v10 refinement: platform workbench, checkout, data-ready layer */
html,body{max-width:100%;overflow-x:hidden}.watch-layout-v10{grid-template-columns:minmax(0,1fr) 350px;align-items:start}.watch-workbench{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:18px}.study-textarea{width:100%;min-height:150px;border:1px solid var(--line);border-radius:18px;background:rgba(4,10,20,.88);color:#eef7ff;padding:14px;resize:vertical}.checkpoint-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.checkpoint-grid button{border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.06);color:#dff5ff;font-weight:900;padding:12px;cursor:pointer}.checkpoint-grid button.done{border-color:rgba(146,255,191,.55);background:rgba(146,255,191,.13);color:#bfffd7}.note-action-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:10px}.recommended-list{display:grid;gap:10px}.rec-video{display:grid;grid-template-columns:86px 1fr auto;gap:10px;align-items:center;padding:10px;border-radius:16px;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.08)}.rec-video img{width:86px;height:50px;object-fit:cover;border-radius:12px}.rec-video span{font-weight:850;font-size:13px;line-height:1.25}.rec-video small{color:var(--cyan);font-weight:900}.checkout-layout{min-height:100vh;display:grid;grid-template-columns:minmax(320px,560px) minmax(280px,420px);gap:24px;align-items:center;justify-content:center;padding:34px}.checkout-card,.checkout-side{border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,.045));box-shadow:var(--shadow);border-radius:32px;padding:28px;backdrop-filter:blur(20px)}.checkout-card h1{font-size:clamp(42px,7vw,86px);letter-spacing:-.07em;margin:12px 0 4px}.checkout-price{font-size:36px;font-weight:950;color:var(--cyan);letter-spacing:-.05em}.checkout-methods{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0}.checkout-methods span{height:42px;border-radius:14px;display:grid;place-items:center;background:#f8fbff;color:#07111f;font-weight:950;box-shadow:0 10px 30px rgba(0,0,0,.18)}.checkout-note{border:1px solid rgba(247,213,121,.25);background:rgba(247,213,121,.08);border-radius:20px;padding:14px;color:#e9dca5;line-height:1.55;margin-bottom:16px}.checkout-card .btn{margin-top:10px}.checkout-side h2{font-size:30px;letter-spacing:-.05em}.checkout-side li{margin:12px 0;color:var(--soft);line-height:1.55}.plan-hint:empty{display:none}.lab-card .lab-controls label{min-width:0}.lab-card input[type="range"]{width:100%}.payment-logos{align-items:center}.pay-logo{background:#f8fbff!important;color:#06101e!important;border:1px solid rgba(255,255,255,.65);display:grid!important;place-items:center!important;min-width:82px;height:42px;padding:0 10px}.pay-logo svg{display:block;margin:auto;width:66px;height:26px}.pay-logo text{fill:#06101e;font-weight:950;font-family:Arial,sans-serif}.pay-logo.mc circle:first-child{fill:#eb001b}.pay-logo.mc circle:last-child{fill:#f79e1b;mix-blend-mode:multiply}.focus-mode .site-header,.focus-mode .site-footer,.focus-mode .watch-side,.focus-mode .watch-actions{display:none}.focus-mode .watch-layout{display:block}.focus-mode .watch-page{padding:18px 0}.focus-mode .watch-player{box-shadow:0 0 0 1px rgba(255,255,255,.08),0 40px 120px rgba(0,0,0,.75)}

@media (max-width:900px){.watch-layout-v10,.watch-workbench,.checkout-layout{grid-template-columns:1fr}.checkout-layout{padding:88px 14px 28px}.checkout-methods{grid-template-columns:repeat(2,1fr)}.rec-video{grid-template-columns:76px 1fr}.rec-video small{display:none}.payment-logos{justify-content:center}}
@media (max-width:760px){.app-shell{display:block;min-height:100vh}.app-sidebar{position:fixed;left:0;right:0;bottom:0;top:auto;height:auto;z-index:80;border-right:0;border-top:1px solid var(--line);padding:8px 8px 10px;background:rgba(3,8,17,.92);backdrop-filter:blur(22px)}.app-sidebar .app-brand,.app-sidebar .sidebar-upgrade,.app-sidebar .back-site{display:none}.app-nav{display:flex;gap:8px;overflow-x:auto;padding-bottom:2px;scroll-snap-type:x mandatory}.app-link{min-width:78px;scroll-snap-align:start;flex-direction:column;gap:4px;justify-content:center;text-align:center;font-size:11px;line-height:1.2;padding:9px 7px;border-radius:14px}.app-link span{width:auto;font-size:17px}.app-main{padding:18px 14px 102px;max-width:100%}.app-top h1{font-size:clamp(30px,11vw,42px)}.app-grid,.lesson-page-grid,.problem-workspace,.coach-layout,.settings-grid{grid-template-columns:1fr}.metric-grid{grid-template-columns:1fr 1fr}.course-card{grid-template-columns:1fr;gap:14px}.watch-player iframe,.lesson-player iframe{height:100%;min-height:230px}.lesson-actions{display:grid;grid-template-columns:1fr;gap:10px}.playlist-panel{margin-top:14px}.labs-grid,.app-labs-grid{grid-template-columns:1fr!important}.lab-controls,.range-row{grid-template-columns:1fr!important;gap:12px}.library-section,.library-panel,.video-grid{max-width:100%;overflow:hidden}.library-top{gap:14px}.filter-tabs{max-width:100%;overflow-x:auto}.filter-tabs .tab{flex:0 0 auto}.video-card{max-width:100%}.checkout-card,.checkout-side{border-radius:24px;padding:20px}.checkpoint-grid{grid-template-columns:1fr}.watch-workbench{grid-template-columns:1fr}.note-pad textarea{min-height:180px}.payment-logos{grid-template-columns:repeat(2,auto);display:grid}}


/* v11 refinement: calmer premium hero + promo strip + responsive chem balance */
.promo-strip{position:relative;z-index:9;border-bottom:1px solid rgba(255,255,255,.06);background:linear-gradient(90deg,rgba(124,242,255,.08),rgba(184,199,255,.06),rgba(247,213,121,.08))}
.promo-strip-inner{min-height:44px;display:flex;align-items:center;justify-content:center;gap:14px;padding:10px 0;text-align:center}
.promo-label{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:6px 10px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.10);color:#fff;font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
.promo-message{color:#eef9ff;font-weight:800;font-size:14px;letter-spacing:-.01em;min-height:22px;display:inline-flex;align-items:center;justify-content:center;transition:opacity .28s ease,transform .28s ease}
.promo-message.is-changing{opacity:.28;transform:translateY(-4px)}
.promo-link{color:var(--cyan);font-weight:900;white-space:nowrap}
.hero-data-scene{position:absolute;left:22px;right:22px;bottom:22px;border:1px solid rgba(255,255,255,.10);background:linear-gradient(180deg,rgba(7,17,31,.22),rgba(5,9,20,.10));padding:18px 18px 16px;border-radius:24px;z-index:2;backdrop-filter:blur(10px)}
.data-chip-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.data-chip{display:inline-flex;align-items:center;border-radius:999px;padding:8px 12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);font-size:12px;font-weight:850;color:#eaf8ff}
.chart-bars{height:170px;display:flex;align-items:flex-end;justify-content:space-between;gap:12px;padding:10px 4px 4px;position:relative}
.chart-bar{flex:1;min-width:0;border-radius:18px 18px 8px 8px;background:linear-gradient(180deg,rgba(124,242,255,.85),rgba(122,167,255,.44));box-shadow:0 0 28px rgba(124,242,255,.12);animation:heroBar 4.6s ease-in-out infinite}
.chart-bar.b1{height:42%}.chart-bar.b2{height:58%;animation-delay:.2s}.chart-bar.b3{height:51%;animation-delay:.45s}.chart-bar.b4{height:70%;animation-delay:.15s}.chart-bar.b5{height:63%;animation-delay:.5s}.chart-bar.b6{height:49%;animation-delay:.35s}
@keyframes heroBar{0%,100%{transform:scaleY(.96);opacity:.76}50%{transform:scaleY(1.06);opacity:1}}
.hero-wave{position:absolute;left:12px;right:12px;bottom:66px;width:calc(100% - 24px);height:96px;overflow:visible}
.hero-wave path{fill:none;stroke:rgba(184,199,255,.44);stroke-width:4;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 18px rgba(184,199,255,.12));stroke-dasharray:420;stroke-dashoffset:0;animation:waveFlow 12s linear infinite}
@keyframes waveFlow{from{stroke-dashoffset:420}to{stroke-dashoffset:0}}
.hero-data-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:6px}
.hero-data-notes div{padding:12px;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08)}
.hero-data-notes strong{display:block;font-size:15px;letter-spacing:-.02em}
.hero-data-notes span{display:block;margin-top:3px;color:var(--muted);font-size:12px;font-weight:700}
.science-stage{background:radial-gradient(circle at 64% 26%,rgba(124,242,255,.08),transparent 18%),radial-gradient(circle at 78% 34%,rgba(184,199,255,.07),transparent 12%),#07101f}
.method-orb-visible .method-animated-layer{opacity:.78!important;filter:saturate(1.22) brightness(1.12)}
.method-orb-visible .method-sphere{opacity:.96;box-shadow:inset 0 0 65px rgba(124,242,255,.18),0 0 72px rgba(124,242,255,.24),0 0 120px rgba(122,167,255,.14)}
.science-canvas:hover .method-animated-layer,.method-orb-visible:hover .method-animated-layer{opacity:1!important;filter:saturate(1.42) brightness(1.25)}
.science-canvas:hover .method-sphere,.method-orb-visible:hover .method-sphere{transform:translateZ(0) scale(1.02)}
.chem-balance{display:grid;grid-template-columns:1fr;gap:12px;align-items:center;margin:16px 0 10px;width:100%;max-width:100%;overflow:hidden}
.chem-balance .bar{display:block;height:40px;border-radius:999px;min-width:0;max-width:100%;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
.chem-balance .react{width:55%;background:linear-gradient(90deg,rgba(247,213,121,.96),rgba(237,127,203,.95))}
.chem-balance .prod{width:45%;background:linear-gradient(90deg,rgba(255,255,255,.10),rgba(255,255,255,.06));border:1px solid rgba(255,255,255,.10)}
.lab-card input[type=range]{display:block;width:100%;max-width:100%;margin:6px 0 0}
.payment-logos{justify-content:center;gap:12px}.pay-logo{justify-self:center}
@media (max-width:900px){.promo-strip-inner{gap:10px;padding:8px 0 10px;flex-wrap:wrap}.hero-data-scene{left:16px;right:16px;bottom:16px}.hero-data-notes{grid-template-columns:1fr 1fr 1fr}}
@media (max-width:760px){.promo-strip-inner{min-height:0;align-items:center}.promo-label{font-size:10px;padding:5px 9px}.promo-message{font-size:12.5px;line-height:1.45}.promo-link{font-size:12px}.hero-visual{min-height:420px!important}.science-canvas{height:400px!important}.method-sphere{width:184px!important;height:184px!important;right:16px!important;top:18px!important}.method-animated-layer .orbit-ring{left:66%;top:24%}.method-animated-layer .glow-core{left:66%;top:24%}.hero-data-scene{padding:14px;left:12px;right:12px;bottom:12px;border-radius:20px}.chart-bars{height:122px;gap:8px}.hero-wave{height:74px;bottom:54px}.hero-data-notes{grid-template-columns:1fr;gap:8px}.hero-data-notes div{padding:10px}.chem-balance .bar{height:34px}.payment-logos{display:grid!important;grid-template-columns:repeat(2,minmax(86px,1fr));justify-items:center}}


/* v12 hero clean-up */
.promo-strip{position:relative;z-index:8;background:rgba(8,14,28,.72);backdrop-filter:blur(12px);border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.06)}
.promo-strip-inner{min-height:48px;display:flex;align-items:center;justify-content:center;gap:12px;padding:0 0;text-align:center}
.promo-label{background:rgba(124,242,255,.10);border-color:rgba(124,242,255,.22);color:#dffcff}
.promo-message{font-size:15px;font-weight:800;max-width:860px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.promo-link{padding-left:2px}
.hero-grid{align-items:center}
.hero-visual{min-height:600px}
.science-canvas{height:544px!important}
.science-stage{background:radial-gradient(circle at 66% 24%,rgba(124,242,255,.10),transparent 18%),radial-gradient(circle at 76% 34%,rgba(184,199,255,.08),transparent 13%),linear-gradient(180deg,#081222,#06101d)}
.method-animated-layer{opacity:.82!important;filter:saturate(1.08) brightness(1.04)!important}
.method-sphere{width:250px!important;height:250px!important;right:82px!important;top:40px!important;opacity:.88!important}
.method-animated-layer .orbit-ring{left:66%!important;top:31%!important}
.method-animated-layer .glow-core{left:66%!important;top:31%!important;width:84px!important;height:84px!important;opacity:.74}
.method-animated-layer .eq-chip{opacity:.66!important}
.hero-data-scene{left:26px;right:26px;bottom:24px;padding:20px 20px 18px;border-radius:24px;background:linear-gradient(180deg,rgba(6,12,24,.32),rgba(5,9,20,.16));border:1px solid rgba(255,255,255,.10);backdrop-filter:blur(8px)}
.data-chip-row{margin-bottom:10px}
.data-chip{font-size:11px;padding:7px 11px;background:rgba(255,255,255,.05)}
.chart-bars{height:138px;gap:10px;padding:12px 0 0}
.chart-bar{border-radius:16px 16px 8px 8px;box-shadow:0 0 18px rgba(124,242,255,.10)}
.hero-wave{position:relative;left:auto;right:auto;bottom:auto;width:100%;height:64px;margin:2px 0 8px}
.hero-wave path{stroke:rgba(184,199,255,.30);stroke-width:3}
.hero-data-caption{color:#d6e9f6;font-size:14px;line-height:1.6;margin:0 0 12px;opacity:.92}
.hero-data-notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.hero-data-notes div{padding:12px 12px 11px;border-radius:16px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.07)}
.hero-data-notes strong{font-size:15px}
.hero-data-notes span{font-size:12px}
.payment-logos{justify-content:center;align-items:center}
.pay-logo{min-width:86px;height:44px}
.pay-logo svg{width:64px;height:24px}
@media (max-width:1024px){.hero-grid{grid-template-columns:1fr}.hero-visual{min-height:520px}.science-canvas{height:470px!important}.method-sphere{right:52px!important;top:30px!important;width:220px!important;height:220px!important}.hero-data-scene{left:18px;right:18px;bottom:18px}}
@media (max-width:760px){.promo-strip-inner{min-height:42px;gap:8px;padding:6px 0;flex-wrap:nowrap}.promo-message{font-size:12.5px;max-width:none;white-space:normal;line-height:1.35}.promo-link{display:none}.hero{padding-top:40px}.hero-visual{min-height:390px!important}.science-canvas{height:370px!important}.method-sphere{right:16px!important;top:20px!important;width:160px!important;height:160px!important}.method-animated-layer .orbit-ring{left:64%!important;top:25%!important}.method-animated-layer .glow-core{left:64%!important;top:25%!important;width:56px!important;height:56px!important}.method-animated-layer .eq1{left:14px;top:72px}.method-animated-layer .eq2{right:16px;top:118px}.method-animated-layer .eq3{left:20px;bottom:138px}.hero-data-scene{left:10px;right:10px;bottom:10px;padding:14px;border-radius:20px}.chart-bars{height:92px;gap:7px}.hero-wave{height:48px;margin:0 0 8px}.hero-data-caption{font-size:12.5px;margin-bottom:10px}.hero-data-notes{grid-template-columns:1fr 1fr 1fr;gap:8px}.hero-data-notes div{padding:9px}.hero-data-notes strong{font-size:13px}.hero-data-notes span{font-size:11px}.pay-logo{min-width:78px;height:40px}}


/* v13 polish */
.promo-strip{position:relative;z-index:20;background:linear-gradient(90deg,rgba(9,16,32,.96),rgba(11,20,38,.92));border-bottom:1px solid rgba(255,255,255,.06)}
.site-header{position:sticky;top:0;z-index:19}
.promo-strip-inner{min-height:40px;padding:0 8px;gap:10px}
.promo-label{font-size:10px;padding:5px 9px;border-radius:999px}
.promo-message{font-size:13.5px;max-width:920px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.promo-link{font-size:13px;font-weight:800}
.hero-grid{gap:56px}
.hero-visual{min-height:590px}
.science-canvas{height:530px!important}
.science-stage{overflow:hidden}
.method-sphere{width:248px!important;height:248px!important;right:88px!important;top:34px!important;opacity:.94!important;filter:saturate(1.06) brightness(1.06)}
.method-animated-layer .orbit-ring{left:67%!important;top:32%!important;opacity:.7!important}
.method-animated-layer .glow-core{left:67%!important;top:32%!important;width:82px!important;height:82px!important;opacity:.68!important}
.method-animated-layer .eq-chip{font-size:13px;padding:10px 14px;backdrop-filter:blur(6px)}
.hero-data-scene{left:22px;right:auto;bottom:20px;width:min(74%,420px);padding:14px 16px 14px;border-radius:22px;background:linear-gradient(180deg,rgba(6,11,22,.54),rgba(6,11,22,.34));border:1px solid rgba(255,255,255,.08);backdrop-filter:blur(10px)}
.hero-scene-topline{font-size:12px;font-weight:800;letter-spacing:.02em;color:#dff7ff;opacity:.92;margin-bottom:10px}
.compact-bars{height:102px;gap:8px;padding:4px 0 0}
.chart-bar{border-radius:14px 14px 6px 6px}
.hero-wave{height:50px;margin:0 0 8px}
.hero-wave path{stroke:rgba(184,199,255,.28);stroke-width:3}
.hero-pill-row{display:flex;gap:8px;flex-wrap:wrap}.hero-pill-row span{display:inline-flex;align-items:center;border-radius:999px;padding:8px 12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);font-size:12px;font-weight:800;color:#f2fbff}
.payment-logos{justify-content:center;align-items:center;gap:12px}.pay-logo{background:#fff;border-color:#fff;box-shadow:0 10px 24px rgba(0,0,0,.14)}
@media (max-width:900px){.hero-grid{gap:34px}.hero-visual{min-height:500px}.science-canvas{height:450px!important}.method-sphere{right:56px!important;top:30px!important;width:208px!important;height:208px!important}.hero-data-scene{width:min(82%,390px)}}
@media (max-width:760px){.promo-strip-inner{min-height:36px;padding:6px 10px;justify-content:center}.promo-message{font-size:12px;white-space:normal;line-height:1.3;text-align:center}.promo-link{display:none}.site-header{top:0}.hero{padding-top:34px}.hero-grid{gap:22px}.hero-visual{min-height:370px!important}.science-canvas{height:350px!important}.method-sphere{right:16px!important;top:16px!important;width:150px!important;height:150px!important;opacity:.9!important}.method-animated-layer .orbit-ring{left:65%!important;top:25%!important}.method-animated-layer .glow-core{left:65%!important;top:25%!important;width:52px!important;height:52px!important}.method-animated-layer .eq-chip{font-size:11px;padding:7px 10px}.hero-data-scene{left:10px;bottom:10px;width:calc(100% - 20px);max-width:none;padding:12px 12px 12px}.compact-bars{height:76px;gap:6px}.hero-wave{height:38px}.hero-pill-row{gap:6px}.hero-pill-row span{font-size:11px;padding:7px 10px}.pay-logo{min-width:84px;height:42px}}


/* v14 mobile pricing + dashboard/video/lesson polish */
body{letter-spacing:-.01em} p{line-height:1.75} .section-title p,.app-top p,.feature-card p,.price-card p{max-width:68ch}
.price-card ul li{position:relative;padding-left:28px}.price-card ul li::before{content:"✦";position:absolute;left:0;top:.1em;color:var(--cyan);font-weight:900}
.pricing-mobile-tabs{display:none;margin:0 0 18px;gap:10px;padding:6px;border-radius:22px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);overflow:auto}.plan-switch{flex:1 0 auto;border:0;border-radius:16px;padding:11px 14px;background:transparent;color:var(--soft);font-weight:900;cursor:pointer;white-space:nowrap}.plan-switch.active{background:#f7fbff;color:#07111f;box-shadow:0 8px 24px rgba(0,0,0,.15)}
.mobile-compare-cards{display:none}.compare-mobile-tabs{display:flex;gap:8px;overflow:auto;padding:6px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:22px;margin-bottom:14px}.compare-tab{border:0;background:transparent;color:var(--soft);font-weight:900;padding:10px 14px;border-radius:14px;white-space:nowrap;cursor:pointer}.compare-tab.active{background:#f7fbff;color:#07111f}.compare-mobile-panel{border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,.04));border-radius:26px;padding:22px;box-shadow:var(--shadow)}.compare-mobile-price{font-size:42px;font-weight:950;letter-spacing:-.06em;color:#f7d579;margin-bottom:12px}.compare-mobile-panel ul{list-style:none;padding:0;margin:0;display:grid;gap:12px}.compare-mobile-panel li{font-weight:800;line-height:1.45;color:#eff8ff}
.library-panel{padding:26px;border-radius:28px}.library-title{max-width:760px}.library-title h1{line-height:1.02;letter-spacing:-.06em}.library-title p{line-height:1.72}.library-note{justify-content:center;text-align:center;padding:14px 16px}.video-card{overflow:hidden}.video-card h3{line-height:1.28}.video-card p{font-size:14px;line-height:1.6}.video-meta{display:flex;gap:10px;flex-wrap:wrap}
.app-main{max-width:calc(100vw - 300px)} .app-panel{border-radius:28px;padding:22px}.panel-head{gap:12px}.panel-head h2{line-height:1.1}.dashboard-quickstrip{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 22px}.quick-pill{display:inline-flex;align-items:center;gap:8px;padding:12px 14px;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);font-weight:850;color:#eaf7ff}.quick-pill:hover{border-color:rgba(124,242,255,.35);transform:translateY(-1px)}
.lesson-page-grid{grid-template-columns:minmax(0,1.5fr) minmax(300px,.9fr)!important;align-items:start}.lesson-study-stack{display:grid;gap:16px}.lesson-quickfacts .lesson-fact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:8px}.lesson-fact-grid div{padding:14px;border-radius:18px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07)}.lesson-fact-grid strong{display:block;font-size:28px;color:var(--cyan);line-height:1}.lesson-fact-grid span{display:block;margin-top:6px;color:var(--soft);font-weight:800}.lesson-workbench{grid-template-columns:1.15fr .85fr!important}.checkpoint-card,.note-pad{min-width:0}.checkpoint-card h2,.note-pad h2{font-size:24px;letter-spacing:-.04em}.study-textarea{border-radius:18px}.playlist-panel{position:sticky;top:92px}.lesson-player{min-height:360px}.lesson-meta h1{font-size:clamp(32px,4vw,48px);line-height:1.02;letter-spacing:-.06em}.lesson-complete-note{line-height:1.6}
.labs-grid,.enhanced-labs,.app-labs-grid{align-items:stretch}.lab-card{display:flex;flex-direction:column;gap:14px;justify-content:flex-start;min-height:100%}.lab-card p{line-height:1.65}.lab-controls{display:grid;grid-template-columns:1fr 1fr;gap:14px}.lab-controls label{display:grid;gap:8px;font-weight:800;color:#eff7ff}.lab-canvas{border-radius:18px}.chem-balance{gap:10px}.chem-balance .bar{margin:0 auto}.calculator-card .calc-shell{margin-top:2px}
.payment-logos{display:flex!important;justify-content:center!important;align-items:center!important;gap:12px;flex-wrap:wrap}.pay-logo{justify-content:center;align-items:center}.pay-logo svg{display:block;margin:auto}.pay-logo text{dominant-baseline:middle;text-anchor:middle}
@media (max-width:900px){.app-main{max-width:100%}.lesson-page-grid{grid-template-columns:1fr!important}.playlist-panel{position:relative;top:auto}.lesson-workbench{grid-template-columns:1fr!important}.lesson-quickfacts .lesson-fact-grid{grid-template-columns:1fr 1fr 1fr}}
@media (max-width:760px){.pricing-mobile-tabs{display:flex}.pricing-grid.four-plans{display:block}.pricing-grid.four-plans .price-card{display:none}.pricing-grid.four-plans .price-card.active-mobile-plan{display:block}.mobile-compare-cards{display:block;margin-bottom:14px}.compare-table{display:none}.library-panel{padding:18px 14px;border-radius:24px}.library-title h1{font-size:clamp(34px,10vw,48px)}.library-controls{position:sticky;top:12px;z-index:4;background:rgba(4,10,20,.84);backdrop-filter:blur(14px);padding:10px;border-radius:18px;border:1px solid rgba(255,255,255,.07)}.premium-note{font-size:12.5px;text-align:left}.video-grid{gap:12px}.video-card img{aspect-ratio:16/9;object-fit:cover}.app-main{padding:16px 14px 108px!important}.app-top{margin-bottom:16px}.app-top p{font-size:14px}.dashboard-quickstrip{display:grid;grid-template-columns:1fr 1fr;gap:8px}.quick-pill{padding:12px;font-size:12px;justify-content:center;text-align:center}.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}.metric-card strong{font-size:24px}.app-grid{gap:14px}.app-panel{padding:18px;border-radius:24px}.lesson-player{min-height:240px}.lesson-meta h1{font-size:clamp(28px,9vw,38px)}.lesson-quickfacts .lesson-fact-grid{grid-template-columns:1fr}.lesson-workbench{gap:14px}.playlist-head{align-items:center}.lesson-list{display:grid;gap:8px}.lesson-item{padding:12px;border-radius:16px}.labs-grid,.enhanced-labs,.app-labs-grid{gap:14px}.lab-card{padding:16px;border-radius:24px}.lab-controls{grid-template-columns:1fr!important;gap:10px}.chem-balance .react{width:100%;max-width:260px}.chem-balance .prod{width:100%;max-width:220px}.pay-logo{min-width:90px;height:42px}.pay-logo.visa svg{width:70px;height:26px}}


/* v15 final requested fixes */
.promo-strip{background:linear-gradient(90deg,rgba(32,12,58,.98),rgba(23,72,105,.92),rgba(182,92,255,.45))!important;box-shadow:0 18px 60px rgba(124,242,255,.08);}
.promo-strip-inner{position:relative;justify-content:center;text-align:center;padding:0 120px;}
.promo-label{position:absolute;left:0;top:50%;transform:translateY(-50%);background:linear-gradient(135deg,#f7d579,#7cf2ff);color:#07111f;border:0;font-weight:950;}
.promo-message{width:100%;text-align:center;justify-content:center;color:#fff;}
.price-card ul{list-style:none!important;padding-left:0!important}.price-card ul li{list-style:none!important;padding-left:30px!important}.price-card ul li::marker{content:""}.price-card ul li::before{display:inline-block!important;position:absolute!important;left:0!important;top:.05em!important;color:inherit!important;background:none!important}.price-card ul li:nth-child(1)::before{content:"🎬"}.price-card ul li:nth-child(2)::before{content:"📚"}.price-card ul li:nth-child(3)::before{content:"🧭"}.price-card ul li:nth-child(4)::before{content:"🧪"}.price-card ul li:nth-child(5)::before{content:"✨"}
.mobile-compare-cards{margin-top:8px}.compare-mobile-panel{max-height:none}.compare-mobile-panel li{font-size:14px}.compare-mobile-panel ul{max-height:none;overflow:visible}.compare-mobile-tabs{position:sticky;top:8px;z-index:5;backdrop-filter:blur(12px)}
.payment-logos{display:flex!important;justify-content:center!important;align-items:center!important;gap:10px!important;flex-wrap:wrap!important;width:100%;max-width:480px;margin:18px auto 0!important}.pay-logo{width:94px!important;min-width:94px!important;height:44px!important;padding:0!important;border-radius:14px!important;background:#fff!important;display:grid!important;place-items:center!important;box-shadow:0 12px 30px rgba(0,0,0,.16)!important}.pay-logo svg{width:80px!important;height:28px!important;display:block!important;margin:auto!important}.pay-logo.visa text{fill:#1a4fb7!important;font-weight:950;font-style:italic}.pay-logo.troy text{fill:#1d2c4f!important;font-weight:950}.pay-logo.iyzico text{fill:#16a1d8!important;font-weight:950}.pay-logo.mc circle:first-child{fill:#eb001b}.pay-logo.mc circle:last-child{fill:#f79e1b;mix-blend-mode:multiply}
.hero-data-scene{display:none!important}.method-sphere{display:none!important}.hero-visual .science-canvas{height:520px!important}.hero-visual .method-animated-layer{opacity:.58!important}.hero-visual .orbit-ring{opacity:.58!important}.hero-visual .eq-chip{opacity:.7!important}.hero-visual .glow-core{opacity:.5!important}
.menu-btn{display:none;align-self:center!important;place-items:center!important;line-height:1!important;transform:none!important;top:auto!important}.nav{align-items:center!important}.mobile-menu.open{display:block!important}
.library-panel.reveal,.video-card.reveal{opacity:1!important;transform:none!important}.video-grid{display:grid!important;min-height:220px}.video-card{display:block!important}.static-video-fallback{opacity:1!important;transform:none!important}.video-card .thumb img{display:block;width:100%;height:100%;object-fit:cover}.library-section{overflow:visible!important}.library-panel{overflow:visible!important}.library-controls{z-index:3}
.locked-lab{min-height:260px!important;display:grid!important;place-items:center!important;padding:0!important;overflow:hidden}.locked-lab .lock-overlay{min-height:260px;width:100%;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:12px;padding:24px;background:linear-gradient(180deg,rgba(6,11,22,.68),rgba(6,11,22,.42));backdrop-filter:blur(8px)}.locked-lab h3{font-size:24px!important;line-height:1.15!important;margin:0}.locked-lab p{margin:0;line-height:1.55}.more-labs-strip{grid-column:1/-1!important}.app-labs-grid .lab-card{min-height:280px}.calculator-card{min-height:auto!important}.calc-keypad button{font-size:14px;line-height:1}
.note-action{display:inline-flex;justify-content:center;align-items:center;border-radius:999px;padding:11px 14px;background:rgba(124,242,255,.10);border:1px solid rgba(124,242,255,.25);color:#eaffff;font-weight:900;margin-top:10px}.download-list{display:grid;gap:10px;margin:12px 0 22px}.download-file{display:flex;align-items:center;gap:10px;padding:12px;border-radius:16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);font-weight:850;color:#eaf7ff}.download-file:hover{border-color:rgba(124,242,255,.35)}
.app-mobile-home{display:none}.app-nav{gap:8px}.app-link{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.course-card{grid-template-columns:minmax(0,1fr) auto!important;gap:16px;align-items:center}.course-card h3{line-height:1.18}.course-card .btn{white-space:nowrap}.course-card p{line-height:1.5}
@media (max-width:760px){.promo-strip-inner{padding:7px 14px!important;min-height:42px}.promo-label{display:none!important}.promo-message{font-size:12.5px!important;line-height:1.35;text-align:center;width:100%}.site-header .nav{min-height:64px!important;display:grid!important;grid-template-columns:minmax(0,1fr) auto!important}.menu-btn{display:grid!important;width:42px!important;height:42px!important;margin:0!important;align-self:center!important}.brand small{display:none}.nav-right{display:none}.hero-visual{display:none!important}.hero-grid{grid-template-columns:1fr!important}.hero{padding-top:42px!important}.pricing-grid.four-plans .price-card ul li{font-size:14px}.mobile-compare-cards{display:block!important}.compare-table{display:none!important}.compare-mobile-panel{padding:20px}.compare-mobile-panel li{font-size:13.5px;line-height:1.45}.payment-logos{display:grid!important;grid-template-columns:repeat(2,94px)!important;justify-content:center!important;gap:10px!important;max-width:220px!important}.pay-logo{width:94px!important;height:42px!important}.pay-logo svg{width:74px!important}.library-section .container{width:min(100% - 22px,var(--max))!important}.library-panel{padding:16px!important;overflow:visible!important}.library-top{display:block!important}.filter-tabs{display:flex!important;gap:8px!important;overflow-x:auto!important;padding-bottom:10px!important}.library-controls{position:relative!important;top:auto!important;display:grid!important;grid-template-columns:1fr!important;gap:10px!important;padding:10px!important;margin-top:6px}.video-grid{display:grid!important;grid-template-columns:1fr!important;gap:14px!important;min-height:300px!important;overflow:visible!important}.video-card{display:block!important;min-height:auto!important}.video-body{padding:16px!important}.video-card h3{font-size:18px!important}.app-mobile-home{display:inline-flex;position:fixed;top:10px;right:10px;z-index:120;padding:9px 12px;border-radius:999px;background:rgba(124,242,255,.13);border:1px solid rgba(124,242,255,.28);backdrop-filter:blur(14px);font-size:12px;font-weight:900;color:#eaffff}.app-main{padding-top:52px!important}.app-nav{gap:4px!important}.app-link{flex:0 0 64px!important;min-width:64px!important;font-size:10px!important;padding:8px 4px!important;white-space:nowrap!important;overflow:hidden!important;text-overflow:ellipsis!important}.app-link span{font-size:16px!important}.dashboard-quickstrip{grid-template-columns:1fr 1fr!important}.course-list{display:grid!important;gap:14px!important}.course-card{grid-template-columns:1fr!important;overflow:hidden!important;padding:18px!important}.course-card .btn{width:100%!important}.course-card h3{font-size:20px!important}.course-card p{font-size:13px!important}.course-card .progress{grid-column:auto!important;width:100%!important}.auth-layout-v2{padding-top:86px!important;gap:16px!important}.auth-copy-panel{padding:0 18px!important;text-align:center!important}.auth-copy-panel h1,.auth-copy-panel p,.auth-highlights{display:none!important}.auth-copy-panel .badge{margin:0 auto!important}.premium-auth-card{margin-top:0!important}.labs-grid,.enhanced-labs,.app-labs-grid{grid-template-columns:1fr!important}.locked-lab,.locked-lab .lock-overlay{min-height:230px!important}.locked-lab h3{font-size:22px!important}.app-labs-grid .lab-card{min-height:auto}.calc-keypad{grid-template-columns:repeat(4,1fr)!important}.calc-keypad button{min-height:46px!important}.note-card{display:block!important}.note-action{width:100%}.pdf-download-panel{display:block}.pdf-viewer-layout{gap:18px!important}.download-file{font-size:13px}.lesson-page-grid{grid-template-columns:1fr!important}.lesson-study-stack{order:3}.playlist-panel{order:2}}


/* v16 bug-fix pass: working pages, mobile lesson, app labs and reset password */
.app-nav .app-link{min-width:0}
.app-link{white-space:nowrap}
.coach-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);gap:18px}
.coach-chat{display:grid;gap:12px}
.chat-bubble{border:1px solid rgba(255,255,255,.10);border-radius:20px;padding:14px 16px;line-height:1.6}
.chat-bubble.system{background:rgba(124,242,255,.08);color:#eaffff}
.chat-bubble.user{background:rgba(255,255,255,.06);color:#fff;margin-left:32px}
.chat-input{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;margin-top:6px}
.chat-input input{min-width:0;border:1px solid rgba(255,255,255,.12);background:rgba(4,10,20,.78);color:#eef7ff;border-radius:16px;padding:13px}
.chat-input button,.prompt-btn{border:1px solid rgba(124,242,255,.22);background:rgba(124,242,255,.10);color:#eaffff;border-radius:16px;padding:12px 14px;font-weight:900}
.coach-shortcuts{display:grid;gap:10px;align-content:start}
.reset-layout{grid-template-columns:minmax(0,1fr) minmax(320px,520px)}
.reset-card h2{font-size:34px;letter-spacing:-.05em;margin:12px 0}
.reset-form{display:grid;gap:14px}
.student-labs-page .app-main,.app-main{min-width:0}
.full-labs-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.full-labs-grid .lab-card{min-width:0;overflow:hidden}
.lab-kicker{display:inline-flex;align-self:flex-start;border:1px solid rgba(124,242,255,.18);background:rgba(124,242,255,.08);color:#dffcff;border-radius:999px;padding:6px 10px;font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.08em}
.locked-lab .lock-overlay{display:flex;flex-direction:column;align-items:flex-start;text-align:left}
.locked-lab .lock-overlay .btn{margin-top:auto}
.one-control{grid-template-columns:1fr!important}
.lesson-page-grid{grid-template-columns:minmax(0,1.4fr) minmax(300px,.82fr)!important;gap:18px}
.lesson-page-grid>section,.lesson-page-grid>aside{min-width:0}
.lesson-player{width:100%;aspect-ratio:16/9;min-height:0!important}
.lesson-player iframe{width:100%;height:100%;border:0;border-radius:inherit}
.lesson-actions{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}
.lesson-actions .btn{white-space:normal}
.lesson-meta p{max-width:70ch}
.lesson-study-stack{min-width:0;display:grid;gap:16px}
.lesson-workbench{display:grid;grid-template-columns:1fr!important;gap:14px}
.lesson-quickfacts .lesson-fact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.lesson-fact-grid div{min-width:0}
.playlist-panel{min-width:0}
.lesson-item{min-width:0}
.lesson-item-title{display:block;overflow:hidden;text-overflow:ellipsis}
.course-list{display:grid;gap:16px}
.course-card{min-width:0}
.course-card>*{min-width:0}
.course-card .progress-track{width:100%}
.note-card .btn,.note-action{white-space:normal}
.pdf-download-panel{border:1px solid rgba(124,242,255,.18);background:rgba(124,242,255,.06);border-radius:24px;padding:18px;margin:18px 0}
.app-mobile-home{line-height:1}
@media (max-width:1080px){
  .full-labs-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .coach-layout{grid-template-columns:1fr}
}
@media (max-width:760px){
  .app-mobile-home{display:inline-flex;left:12px!important;right:auto!important;top:10px!important;max-width:max-content}
  .app-main{padding-top:56px!important}
  .app-nav{display:flex!important;gap:5px!important;overflow-x:auto!important;padding:0 4px 3px!important;scrollbar-width:none}
  .app-nav::-webkit-scrollbar{display:none}
  .app-link{flex:0 0 58px!important;min-width:58px!important;max-width:58px!important;font-size:9.5px!important;line-height:1.05!important;padding:7px 3px!important;gap:3px!important}
  .app-link span{font-size:15px!important}
  .app-link[href*="student-labs"]{flex-basis:56px!important;min-width:56px!important}
  .coach-layout{grid-template-columns:1fr!important;gap:14px}
  .chat-bubble{font-size:13.5px;padding:12px}
  .chat-bubble.user{margin-left:0}
  .chat-input{grid-template-columns:1fr}
  .reset-layout{display:block;padding:92px 14px 30px!important}
  .reset-copy{display:none!important}
  .full-labs-grid{grid-template-columns:1fr!important;gap:14px}
  .lab-card{min-height:auto!important}
  .locked-lab{min-height:240px!important}
  .locked-lab .lock-overlay{min-height:210px!important}
  .locked-lab h3{font-size:21px!important}
  .lesson-page-grid{display:flex!important;flex-direction:column!important;gap:14px!important}
  .lesson-page-grid>section:first-child{order:1}
  .playlist-panel{order:2;position:relative!important;top:auto!important;width:100%}
  .lesson-study-stack{order:3;width:100%}
  .lesson-player{width:100%!important;aspect-ratio:16/9!important;border-radius:20px!important}
  .lesson-actions{display:grid!important;grid-template-columns:1fr!important}
  .lesson-actions .btn{width:100%!important;padding:13px 14px!important}
  .lesson-meta h1{font-size:clamp(25px,8vw,34px)!important;line-height:1.08!important;word-break:normal!important}
  .lesson-meta p{font-size:13.5px!important;line-height:1.55!important}
  .lesson-quickfacts .lesson-fact-grid{grid-template-columns:1fr!important}
  .lesson-item{grid-template-columns:28px minmax(0,1fr)!important;gap:10px!important}
  .lesson-item .duration{grid-column:2!important;justify-self:start!important}
  .recommended-list .rec-video{grid-template-columns:64px minmax(0,1fr)!important}
  .rec-video img{width:64px!important;height:42px!important}
  .course-card{display:grid!important;grid-template-columns:1fr!important;gap:12px!important}
  .course-card .btn{width:100%!important;justify-self:stretch!important;text-align:center!important}
  .course-card h3{font-size:20px!important;line-height:1.18!important}
  .course-card p{font-size:13.5px!important;line-height:1.55!important}
  .course-card .progress-track,.progress-track{width:100%!important;min-width:0!important}
}


/* v17 dashboard + mobile polish */
.welcome-rotator{display:inline-block;transition:opacity .55s ease,transform .55s ease;will-change:opacity,transform}
.welcome-rotator.is-changing{opacity:.14;transform:translateY(8px);filter:blur(.8px)}
.panel-sub{margin:6px 0 0;color:var(--muted);font-size:14px;line-height:1.55}
.activity-panel{overflow:hidden}
.activity-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}
.activity-summary div{border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.045);border-radius:18px;padding:14px}
.activity-summary strong{display:block;font-size:24px;letter-spacing:-.04em;color:#eefaff}
.activity-summary span{display:block;color:var(--muted);font-size:12px;font-weight:800;margin-top:2px}
.activity-week{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;margin:10px 0 8px;color:var(--muted);font-size:11px;font-weight:900;text-align:center}
.modern-heatmap{display:grid!important;grid-template-columns:repeat(7,1fr)!important;gap:8px!important;margin-top:0!important}
.modern-heatmap span{height:28px;border-radius:9px;border:1px solid rgba(255,255,255,.07);background:rgba(255,255,255,.045);box-shadow:inset 0 0 0 1px rgba(255,255,255,.02)}
.modern-heatmap .level-0{background:rgba(255,255,255,.04)}
.modern-heatmap .level-1{background:rgba(124,242,255,.16)}
.modern-heatmap .level-2{background:rgba(124,242,255,.34)}
.modern-heatmap .level-3{background:linear-gradient(135deg,rgba(124,242,255,.75),rgba(122,167,255,.58));box-shadow:0 0 18px rgba(124,242,255,.15)}
.modern-heatmap .level-goal{background:linear-gradient(135deg,rgba(255,91,91,.88),rgba(247,213,121,.68));box-shadow:0 0 18px rgba(255,91,91,.22)}
.activity-legend{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;color:var(--muted);font-size:12px;font-weight:850}
.activity-legend span{display:inline-flex;align-items:center;gap:6px}
.activity-legend i{width:12px;height:12px;border-radius:4px;display:inline-block}
.legend-low{background:rgba(124,242,255,.16)}.legend-mid{background:rgba(124,242,255,.34)}.legend-high{background:rgba(124,242,255,.75)}.legend-goal{background:linear-gradient(135deg,#ff5b5b,#f7d579)}
.logout-panel{border-color:rgba(255,91,91,.20)!important;background:linear-gradient(180deg,rgba(255,91,91,.08),rgba(255,255,255,.04))!important}
.logout-btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:1px solid rgba(255,91,91,.36);background:rgba(255,91,91,.10);color:#ffd2d2;border-radius:999px;padding:13px 18px;font-weight:950;cursor:pointer}
.logout-btn span{font-size:18px}.logout-btn:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(255,91,91,.12)}
.logout-toast{position:fixed;top:22px;left:50%;transform:translate(-50%,-20px);z-index:9999;border:1px solid rgba(255,255,255,.14);background:rgba(5,9,20,.90);backdrop-filter:blur(18px);box-shadow:0 30px 90px rgba(0,0,0,.45);color:#fff;border-radius:999px;padding:12px 18px;font-weight:900;opacity:0;pointer-events:none;transition:opacity .32s ease,transform .32s ease}
.logout-toast.open{opacity:1;transform:translate(-50%,0)}
.logout-spinner{display:inline-block;width:13px;height:13px;border-radius:50%;border:2px solid rgba(255,255,255,.25);border-top-color:#7cf2ff;margin-right:8px;vertical-align:-2px;animation:logoutSpin .8s linear infinite}
@keyframes logoutSpin{to{transform:rotate(360deg)}}
.forgot-big,.forgot-link{position:relative;z-index:3}
.problem-main h2{font-size:clamp(28px,4vw,42px);line-height:1.05;letter-spacing:-.055em;margin:14px 0 10px}
.problem-main p,.problem-side p{line-height:1.7}
.problem-main .problem-equation{font-size:clamp(21px,4vw,32px);line-height:1.2}
.problem-side .huge{font-size:clamp(42px,8vw,68px);letter-spacing:-.06em;color:#f7d579}
@media (max-width:760px){
  .problem-workspace{grid-template-columns:1fr!important;gap:14px!important}
  .problem-main,.problem-side{padding:18px!important;border-radius:24px!important}
  .problem-main h2{font-size:30px!important;line-height:1.08;margin:12px 0}
  .problem-main p{font-size:14.5px;line-height:1.62}
  .problem-main textarea{min-height:140px;border-radius:16px}
  .problem-main .problem-equation{padding:16px;font-size:20px!important;margin:16px 0}
  .streak-dots{gap:6px;flex-wrap:wrap}.streak-dots span{width:24px;height:24px}
  .activity-summary{grid-template-columns:1fr;gap:8px}
  .activity-week{gap:5px;font-size:10px}
  .modern-heatmap{gap:5px!important}.modern-heatmap span{height:24px;border-radius:7px}
  .activity-legend{font-size:11px;gap:8px}
  .app-nav{align-items:stretch!important}
  .app-link{min-width:64px!important;max-width:78px;white-space:normal!important;word-break:normal;font-size:10px!important;padding:8px 5px!important}
  .app-link span{font-size:17px!important}
  .logout-toast{top:14px;width:calc(100% - 28px);justify-content:center;text-align:center;border-radius:18px}
}


/* v18 fixes: robust pages, sidebar logout, onboarding, admin, labs filters */
.app-link.logout-sidebar{border:1px solid rgba(255,91,91,.22);color:#ffd1d1;background:rgba(255,91,91,.08);cursor:pointer;font-family:inherit}
.app-link.logout-sidebar:hover{background:rgba(255,91,91,.13);border-color:rgba(255,91,91,.36)}
.app-sidebar .app-link.active{background:linear-gradient(135deg,rgba(124,242,255,.16),rgba(122,167,255,.12));border-color:rgba(124,242,255,.32);color:#fff;box-shadow:inset 0 0 0 1px rgba(124,242,255,.08)}
.coach-panel .coach-chat{max-height:none}.coach-input{display:grid;grid-template-columns:1fr auto;gap:10px;margin-top:16px}.coach-input input{border:1px solid var(--line);background:rgba(5,12,24,.82);color:#fff;border-radius:999px;padding:14px 16px}.coach-suggestion{border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.045);border-radius:18px;padding:14px;margin-top:10px}.coach-suggestion span{color:var(--cyan);font-weight:950;font-size:12px}.coach-suggestion strong{display:block;margin-top:4px}.coach-suggestion p{margin:6px 0 0;color:var(--muted);line-height:1.55}
.creator-card{padding:26px}.creator-avatar{width:92px;height:92px;border-radius:30px;display:grid;place-items:center;background:linear-gradient(135deg,var(--cyan),var(--blue));color:#06101d;font-size:42px;font-weight:950;margin-bottom:18px;box-shadow:0 0 50px rgba(124,242,255,.22)}
.lab-filter-tabs{display:flex;flex-wrap:wrap;gap:10px}.lab-filter{border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);color:#f1f8ff;padding:10px 14px;border-radius:999px;font-weight:900;cursor:pointer}.lab-filter.active{background:#f7fbff;color:#07111f}
.lab-category-badge{align-self:flex-start;border:1px solid rgba(124,242,255,.22);background:rgba(124,242,255,.08);color:#dffcff;border-radius:999px;padding:6px 10px;font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.08em}
.labs-grid .lab-card.is-hidden{display:none!important}
.admin-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}.admin-grid .wide{grid-column:1/-1}.admin-form{display:grid;gap:14px}.admin-form label{display:grid;gap:8px;color:#eef7ff;font-weight:850}.admin-form input,.admin-form select{border:1px solid var(--line);background:rgba(5,12,24,.82);color:#fff;border-radius:16px;padding:13px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.admin-list{display:grid;gap:10px}.admin-list div{padding:14px;border-radius:18px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08)}.admin-list strong{display:block}.admin-list span{display:block;color:var(--muted);font-size:13px;margin-top:4px}.admin-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.admin-flow div{padding:18px;border-radius:20px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08)}.admin-flow span{width:34px;height:34px;border-radius:12px;background:rgba(124,242,255,.12);display:grid;place-items:center;color:var(--cyan);font-weight:950;margin-bottom:10px}
.onboarding-modal{position:fixed;inset:0;z-index:9997;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(2,6,14,.72);backdrop-filter:blur(18px)}.onboarding-modal.open{display:flex}.onboarding-card{position:relative;width:min(720px,100%);max-height:90vh;overflow:auto;border:1px solid var(--line);background:linear-gradient(180deg,rgba(10,19,35,.96),rgba(5,9,20,.96));border-radius:34px;padding:28px;box-shadow:var(--shadow)}.onboarding-card h2{font-size:clamp(34px,5vw,56px);line-height:1;letter-spacing:-.065em;margin:14px 0 8px}.onboarding-step{margin-top:18px}.onboarding-step strong{display:block;margin-bottom:10px}.choice-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.choice-grid button{border:1px solid rgba(255,255,255,.10);background:rgba(255,255,255,.055);color:#fff;border-radius:16px;padding:12px 10px;font-weight:900;cursor:pointer}.choice-grid button.active{background:#f7fbff;color:#07111f}.personal-route-summary{margin:18px 0}.personal-route-summary strong{display:block;font-size:22px;letter-spacing:-.035em;margin-top:5px}.personal-route-summary p{margin:6px 0 0;color:var(--muted)}
@media (max-width:760px){.coach-layout,.admin-grid{grid-template-columns:1fr!important}.coach-input{grid-template-columns:1fr}.admin-flow,.form-row,.choice-grid{grid-template-columns:1fr!important}.onboarding-card{padding:20px;border-radius:26px}.lab-filter-tabs{overflow:auto;flex-wrap:nowrap;padding-bottom:8px}.lab-filter{flex:0 0 auto}.app-link.logout-sidebar{min-width:64px!important}.creator-card{padding:20px}.creator-avatar{width:76px;height:76px;border-radius:24px;font-size:34px}.deep-card h2{font-size:clamp(30px,9vw,42px)}}


/* v19 onboarding, branch dashboards, AI coach, 404 and about fallback */
.goal-choice-grid{grid-template-columns:repeat(2,1fr)!important}
.onboarding-card{line-height:1.45}.onboarding-card p{line-height:1.65}.onboarding-step{padding:14px;border:1px solid rgba(255,255,255,.07);border-radius:20px;background:rgba(255,255,255,.035)}.onboarding-step strong{line-height:1.35}
.branch-dash-top h1{font-size:clamp(42px,6vw,76px);letter-spacing:-.07em}.compact-feature-grid{grid-template-columns:repeat(3,1fr)!important;margin-top:14px}.branch-video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.branch-video-card{display:grid;grid-template-columns:110px 1fr;gap:12px;align-items:center;padding:12px;border-radius:20px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08);color:#fff}.branch-video-card img{width:110px;height:70px;object-fit:cover;border-radius:14px}.branch-video-card span{color:var(--cyan);font-size:11px;font-weight:950;text-transform:uppercase}.branch-video-card strong{display:block;line-height:1.25;margin-top:2px}.branch-video-card p{margin:4px 0 0;color:var(--muted);font-size:12px;line-height:1.35}
.coach-layout-v19{grid-template-columns:minmax(0,1.35fr) minmax(280px,.75fr)!important}.ai-live-chat{min-height:420px;max-height:560px;overflow:auto;padding-right:4px}.chat-bubble.loading p::after{content:"";display:inline-block;width:18px;height:10px;margin-left:6px;background:radial-gradient(circle,currentColor 30%,transparent 32%) 0 50%/6px 6px repeat-x;animation:coachDots 1s linear infinite}@keyframes coachDots{to{background-position:18px 50%}}.coach-prompt-list,.coach-followups{display:grid;gap:9px;margin-top:12px}.coach-prompt-list button,.coach-followups button{border:1px solid rgba(255,255,255,.10);background:rgba(255,255,255,.055);color:#eefaff;border-radius:16px;padding:12px;text-align:left;font-weight:850;cursor:pointer}.coach-prompt-list button:hover,.coach-followups button:hover{border-color:rgba(124,242,255,.35);transform:translateY(-1px)}.coach-followups h3{font-size:15px;margin:18px 0 0;color:#f7d579}
.badge.danger{background:rgba(255,72,72,.12);border-color:rgba(255,72,72,.32);color:#ffd7d7}.error-page .site-header{border-bottom-color:rgba(255,72,72,.22)}.error-card{border-color:rgba(255,72,72,.30)!important;background:linear-gradient(180deg,rgba(255,72,72,.10),rgba(255,255,255,.04))!important}.error-title{color:#ffdada!important;text-shadow:0 0 34px rgba(255,72,72,.24)}
@media (max-width:900px){.compact-feature-grid,.branch-video-grid{grid-template-columns:1fr!important}.branch-video-card{grid-template-columns:92px 1fr}.coach-layout-v19{grid-template-columns:1fr!important}.ai-live-chat{min-height:320px}.goal-choice-grid{grid-template-columns:1fr!important}}
@media (max-width:760px){.onboarding-step{padding:12px}.onboarding-card h2{font-size:34px!important}.branch-video-card{grid-template-columns:1fr}.branch-video-card img{width:100%;height:auto;aspect-ratio:16/9}.choice-grid button{line-height:1.25;min-height:46px}.coach-prompt-panel{order:-1}.coach-prompt-list{grid-template-columns:1fr}.ai-live-chat{max-height:none;min-height:280px}}