:root{--ink:#11110f;--paper:#f4f0e8;--warm:#ded5c7;--bone:#ebe5d9;--line:#bcb4a8;--acid:#d9ff55;--mono:"DM Mono",monospace;--sans:"DM Sans",sans-serif;--serif:"Playfair Display",serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);overflow-x:hidden}
.grain{position:fixed;inset:0;z-index:100;pointer-events:none;opacity:.07;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.9'/%3E%3C/svg%3E");mix-blend-mode:multiply}
.boot{position:fixed;inset:0;z-index:1000;background:#171513;color:#f4eee5;display:grid;place-content:center;text-align:center;transition:opacity .7s cubic-bezier(.4,0,.2,1),visibility .7s ease}
.boot.is-gone{opacity:0;visibility:hidden;pointer-events:none}
.boot-wordmark-wrap{display:flex;align-items:center;justify-content:center}
.boot-wordmark{font-size:clamp(44px,6vw,76px);color:#f4eee5;letter-spacing:-2.5px;line-height:1}
.boot-wordmark .wm-prefix{color:var(--acid)!important;text-shadow:0 0 25px rgba(199,121,87,.5)}
.boot-wordmark .wm-suffix{font-weight:400;color:#f4eee5}
.boot-wordmark sup{font-size:12px;color:var(--acid)}
.tutor-orb,.setup-orb{display:grid;place-items:center;width:60px;height:60px;border-radius:50%;background:var(--acid);color:var(--ink);font-family:var(--serif);font-size:20px;font-weight:700;margin:auto}
.site-nav{height:84px;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,5vw);position:absolute;z-index:10;top:0;width:100%;box-sizing:border-box;gap:18px;mix-blend-mode:multiply}
.nav-brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.wordmark{color:var(--ink);font-weight:700;font-size:clamp(26px,2.6vw,32px);letter-spacing:-1.5px;text-decoration:none;display:inline-flex;align-items:center;line-height:1}
.wordmark .wm-prefix{color:inherit;font-weight:700}
.wordmark .wm-suffix{font-weight:400}
.wordmark sup{font-family:var(--mono);font-size:8px;vertical-align:top;margin-left:3px;font-weight:600}
.wm-part{display:inline-block;transition:transform .35s cubic-bezier(.2,.7,.1,1),opacity .3s ease;transform-origin:center center;will-change:transform,opacity}
.wm-part.is-flipping{transform:rotateX(90deg) scale(.9);opacity:0}
.site-nav nav{display:flex;gap:28px}
.site-nav nav a,.nav-cta{font-family:var(--mono);font-size:10px;letter-spacing:.02em;text-decoration:none;color:var(--ink)}
.nav-cta{border-bottom:1px solid var(--ink);padding-bottom:4px;white-space:nowrap}
.nav-cta span{font-size:13px}
.section-shell{padding-left:max(28px,8vw);padding-right:max(28px,8vw)}
.hero{min-height:100svh;padding-top:150px;position:relative;display:grid;grid-template-columns:.88fr 1.12fr;align-items:center;gap:20px;overflow:hidden}
.hero-copy{position:relative;z-index:2;max-width:590px}
.eyebrow,.statement-kicker,.chapter-index{font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase}
.hero h1,.statement h2,.experience h2,.chapter h2,.built h2,.join h2,.metrics-header h2,.classroom-header h2,.savings-header h2,.pathways-header h2{font-size:clamp(46px,6vw,100px);letter-spacing:-.07em;line-height:.93;font-weight:500;margin:21px 0 26px}
.hero h1.hero-eink-h1{opacity:1!important;transform:none!important;display:block;min-height:2.05em;position:relative}
.eink-text-surface{display:inline-block;padding:4px 10px;margin-left:-10px;border-radius:0;color:var(--ink)!important;background:transparent;transition:none}
.eink-text-surface em{font-family:var(--serif);font-weight:500;color:inherit!important}
.eink-text-surface.eink-phase-black-1{background:#171513!important;color:#f4eee5!important;box-shadow:0 0 0 8px #171513!important}
.eink-text-surface.eink-phase-white{background:#ebe0d2!important;color:#ebe0d2!important;box-shadow:0 0 0 8px #ebe0d2!important}
.eink-text-surface.eink-phase-black-2{background:#171513!important;color:#f4eee5!important;box-shadow:0 0 0 8px #171513!important}
.eink-text-surface.eink-phase-latch{background:#f4eee5!important;color:#171513!important;box-shadow:0 0 0 8px #f4eee5!important}
h2 em{font-family:var(--serif);font-weight:500}
.hero-text{font-size:17px;line-height:1.55;max-width:410px;margin:0 0 31px}
.hero-actions{display:flex;gap:22px;align-items:center}
.button{border:0;cursor:pointer;text-decoration:none;font:500 12px var(--mono);text-transform:uppercase;letter-spacing:.04em;padding:16px 18px;display:inline-flex;align-items:center;gap:23px}
.button-dark{background:var(--ink);color:var(--paper);transition:transform .25s,background .25s}
.button-dark:hover{transform:translateY(-3px);background:#2b2b26}
.text-button{border:0;border-bottom:1px solid var(--ink);background:transparent;font:12px var(--mono);padding:0 0 4px;cursor:pointer}
.hero-image-wrap{position:relative;min-height:520px;align-self:end;display:flex;align-items:flex-end}
.hero-image{width:min(820px,67vw);margin-left:-20px;display:block;mix-blend-mode:multiply;filter:contrast(1.02);position:relative;z-index:1}
.orbit{position:absolute;border:1px solid rgba(17,17,15,.16);border-radius:50%;pointer-events:none}
.orbit-one{width:650px;height:300px;bottom:50px;right:-30px;transform:rotate(-13deg)}
.orbit-two{width:490px;height:240px;bottom:70px;right:40px;transform:rotate(18deg);border-style:dashed}
.image-caption{position:absolute;bottom:0;right:3%;z-index:2;font:10px var(--mono);text-transform:uppercase;letter-spacing:.08em;display:flex;align-items:center;gap:8px}
.image-caption span{height:7px;width:7px;background:var(--acid);border-radius:50%;display:block}
.hero-scroll{position:absolute;bottom:26px;left:max(28px,8vw);display:flex;align-items:center;gap:8px;font:10px var(--mono);text-transform:uppercase}
.hero-scroll i{height:28px;width:1px;background:var(--ink);display:block;animation:scroll 1.4s ease-in-out infinite}
@keyframes scroll{50%{transform:scaleY(.3);transform-origin:bottom}
}
.statement{padding-top:190px;padding-bottom:130px;background:var(--ink);color:var(--paper)}
.statement-kicker{color:var(--acid)}
.statement h2{max-width:900px;margin-top:26px}
.statement h2 em{color:var(--acid)}
.statement-foot{display:grid;grid-template-columns:1fr 1fr;gap:70px;margin-left:auto;max-width:730px;margin-top:64px}
.statement-foot p{font-size:15px;line-height:1.55;margin:0}
.statement-foot .mono-note{font:10px var(--mono);text-transform:uppercase;color:#9a9a91;padding-top:5px}
.device-section{background:var(--ink);padding-bottom:160px;overflow:hidden}
.device-labels{display:grid;grid-template-columns:1fr 1fr;color:var(--paper);font:10px var(--mono);letter-spacing:.11em;margin:0 auto 15px;max-width:1000px;padding:0 20px}
.device-labels span:last-child{text-align:right}
.device-stage{max-width:1000px;margin:auto;display:grid;grid-template-columns:1fr 1fr;position:relative;filter:drop-shadow(0 22px 30px rgba(0,0,0,.33));transition:transform .7s cubic-bezier(.2,.7,.1,1)}
.device-stage:hover{transform:rotateX(2deg) rotateY(-1deg)}
.tablet-spine{position:absolute;z-index:5;left:50%;top:2px;bottom:2px;width:13px;transform:translateX(-50%);border-radius:4px;background:linear-gradient(90deg,#252525,#595954 45%,#232323 55%,#080808);box-shadow:0 0 0 1px #060606}
.ink-page{min-height:575px;background:#e5e4dc;color:#121212;padding:23px 25px;position:relative;overflow:hidden;border:10px solid #191918;background-image:radial-gradient(rgba(0,0,0,.05) .55px,transparent .55px);background-size:4px 4px}
.lesson-page{border-radius:14px 0 0 14px;border-right-width:7px}
.tutor-page{border-radius:0 14px 14px 0;border-left-width:7px}
.screen-meta{font:9px var(--mono);letter-spacing:.06em;display:flex;justify-content:space-between;border-bottom:1px solid #9c9c96;padding-bottom:10px}
.force{font:italic 13px var(--serif);position:absolute}
.force:before{content:"";position:absolute;background:#1b1b19;height:1px;transform-origin:left}
.force-n{top:15px;left:145px}
.force-n:before{width:54px;transform:rotate(110deg);top:17px;left:-18px}
.force-mg{top:123px;left:144px}
.force-mg:before{width:60px;transform:rotate(-91deg);top:-6px;left:7px}
.force-f{top:74px;left:205px}
.force-f:before{width:55px;transform:rotate(164deg);top:14px;left:-49px}
.angle{position:absolute;top:113px;left:35px;font:italic 15px var(--serif)}
.prompt{font:12px var(--sans);border-top:1px solid #a7a79f;padding-top:12px;margin:0}
.work-area{height:70px;border-bottom:1px dashed #aaa9a1;position:relative;margin-top:2px}
.work-area small{font:8px var(--mono);position:absolute;right:0;bottom:7px;color:#686860}
.scribble{display:block;position:absolute;border-bottom:2px solid #373735;border-radius:50%;transform:rotate(-14deg)}
.scribble.one{width:43px;left:34px;top:19px}
.scribble.two{width:27px;left:83px;top:38px;transform:rotate(11deg)}
.scribble.three{width:61px;left:121px;top:14px;transform:rotate(-5deg)}
.screen-button{width:100%;background:#1b1b1a;color:#e8e6df;border:0;position:absolute;bottom:22px;left:0;right:0;margin:auto;width:calc(100% - 50px);font:10px var(--mono);text-align:left;padding:13px 14px;cursor:pointer;display:flex;justify-content:space-between}
.screen-button.inverse{background:transparent;color:#171716;border:1px solid #1a1a19}
.tutor-head{display:flex;align-items:center;gap:10px;margin:21px 0}
.tutor-orb{width:30px;height:30px;font-size:17px;margin:0;background:#212120;color:#e7e5de}
.tutor-head strong,.tutor-head small{display:block}
.tutor-head strong{font-size:12px}
.tutor-head small{font:8px var(--mono);margin-top:2px}
.chat{display:flex;flex-direction:column;gap:11px;max-height:285px;overflow-y:auto;padding-bottom:12px;scrollbar-width:none}
.chat::-webkit-scrollbar{display:none}
.bubble{font-size:12px;line-height:1.35;border:1px solid #8e8e87;padding:10px 11px;border-radius:3px;max-width:93%;opacity:.75;transition:opacity .3s,transform .3s}
.bubble-ki{align-self:flex-start}
.bubble-user{align-self:flex-end;background:#d5d5ce}
.bubble.active-bubble{opacity:1}
.bubble.bubble-speaking{opacity:1!important;border-color:#171513!important;box-shadow:0 2px 8px rgba(0,0,0,.15);transform:scale(1.02);background:#fdfbf7}
.bubble-user.bubble-speaking{background:#c8c6bc!important}
.bubble em{font-family:var(--serif);font-size:14px}
.hint-level{position:absolute;bottom:78px;width:calc(100% - 50px);display:flex;align-items:center;gap:12px;border-top:1px solid #a1a199;padding-top:12px;font:9px var(--mono)}
.hint-level div{display:flex;gap:3px}
.hint-level i{height:4px;width:16px;background:#aaa9a0}
.hint-level i.on{background:#1b1b1a}
.hint-level small{margin-left:auto;font:9px var(--mono)}
.stylus{position:absolute;z-index:8;top:50%;left:50%;height:280px;width:16px;border-radius:12px;background:linear-gradient(90deg,#151515,#585853 45%,#10100f 80%);transform:translate(-50%,-50%) rotate(4deg);box-shadow:2px 3px 8px rgba(0,0,0,.5)}
.device-controls{margin:38px auto 0;max-width:1000px;color:var(--paper);display:grid;grid-template-columns:repeat(3,auto) 1fr;gap:8px;align-items:center}
.device-control{border:0;background:transparent;color:#898981;font:10px var(--mono);text-align:left;padding:0;cursor:pointer;transition:color .3s}
.device-control span{color:var(--acid);margin-right:5px}
.device-control.active{color:var(--paper)}
.device-controls p{margin:0;text-align:right;font:12px var(--sans);transition:opacity .25s}
.experience{padding-top:145px;padding-bottom:170px;background:var(--bone);overflow:hidden}
.experience-intro{max-width:575px}
.experience h2{margin-top:19px}
.experience-intro>p:last-child{max-width:390px;font-size:16px;line-height:1.55}
.feature-rail{display:grid;grid-template-columns:1fr 1fr 1fr;gap:13px;margin-top:90px}
.feature-card{min-height:520px;padding:25px;position:relative;overflow:hidden;display:flex;flex-direction:column}
.feature-card h3{font-size:clamp(27px,3vw,43px);letter-spacing:-.06em;line-height:.96;margin:45px 0 18px}
.feature-card>p:not(.card-number){font-size:13px;line-height:1.5;max-width:280px}
.card-number{font:10px var(--mono);margin:0}
.card-icon{position:absolute;top:20px;right:23px;font:25px var(--serif)}
.dark-card{background:#181818;color:#f2f0e9}
.paper-card{background:#f6f4ed}
.grid-card{background-color:#cfc9bc;background-image:linear-gradient(rgba(20,20,18,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(20,20,18,.14) 1px,transparent 1px);background-size:18px 18px}
.stroke-demo{margin-top:auto;height:100px;display:flex;align-items:flex-end;gap:7px;padding-bottom:4px}
.stroke-demo i{display:block;width:18%;border-top:2px solid var(--acid);border-radius:50%;height:30px;transform:rotate(-18deg);animation:drawStroke 2.5s infinite alternate}
.stroke-demo i:nth-child(2){height:55px;animation-delay:.2s}
.stroke-demo i:nth-child(3){height:20px;animation-delay:.4s}
.stroke-demo i:nth-child(4){height:75px;animation-delay:.1s}
.stroke-demo i:nth-child(5){height:43px;animation-delay:.5s}
@keyframes drawStroke{to{transform:rotate(12deg) translateY(-9px)}
}
.hint-demo{margin-top:auto;display:flex;flex-direction:column;gap:8px;font:11px var(--mono)}
.hint-demo span{border:1px solid #777;padding:9px;transform:translateX(0);transition:transform .3s}
.hint-demo span:nth-child(2){margin-left:15px}
.hint-demo span:nth-child(3){margin-left:31px}
.paper-card:hover .hint-demo span{transform:translateX(10px)}
.offline-mark{margin-top:auto;border-top:1px solid #1c1c19;padding-top:17px;display:grid;grid-template-columns:auto 1fr auto;gap:8px;align-items:center;font:10px var(--mono);text-transform:uppercase}
.offline-mark b{font-weight:500}
.offline-mark i{height:1px;background:#222}
.offline-mark span{text-align:right;font-size:8px;line-height:1.35}
.chapter{background:var(--acid);padding-top:150px;padding-bottom:160px;display:grid;grid-template-columns:1fr 1.45fr;gap:20px}
.chapter-main h2{margin-top:20px}
.chapter-main>p{max-width:440px;font-size:16px;line-height:1.5}
.underlined-link{display:inline-flex;gap:30px;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--ink);padding-bottom:5px;font:12px var(--mono);margin-top:38px}
.subject-list{align-self:end}
.subject-list button{width:100%;border:0;border-top:1px solid rgba(17,17,15,.45);background:transparent;padding:19px 0;text-align:left;font:600 clamp(19px,2.5vw,30px) var(--sans);letter-spacing:-.05em;display:flex;align-items:center;cursor:pointer;transition:padding .2s}
.subject-list button:last-child{border-bottom:1px solid rgba(17,17,15,.45)}
.subject-list button span{font:10px var(--mono);width:65px;letter-spacing:0}
.subject-list button i{font:24px var(--serif);font-style:normal;margin-left:auto}
.subject-list button:hover{padding-left:11px}
.built{background:var(--ink);color:var(--paper);padding-top:145px;padding-bottom:145px}
.built h2{margin-top:20px}
.spec-grid{margin-top:100px;border-top:1px solid #595952;display:grid;grid-template-columns:repeat(4,1fr)}
.spec-grid article{padding:26px 22px 0 0;min-height:255px;border-right:1px solid #595952;margin-right:20px}
.spec-grid article:last-child{border-right:0}
.spec-icon{color:var(--acid);font:30px var(--serif);display:block}
.spec-grid b{display:block;font-size:17px;letter-spacing:-.04em;line-height:1.05;margin:27px 0 14px}
.spec-grid p{font-size:12px;line-height:1.5;color:#b9b8ae;max-width:200px}
/* ==========================================================================
   Section 07: Pathways & Minimalist Direct Dispatch Strip
   ========================================================================== */
.pathways-section{padding-top:140px;padding-bottom:140px;background:var(--paper);border-top:1px solid var(--line)}
.pathways-header{max-width:820px;margin-bottom:60px}
.pathways-header h2{margin:18px 0 22px}
.pathways-intro{font-size:16px;line-height:1.55;color:#4f4a43;max-width:620px;margin:0}

/* 4 Editorial Pathway Cards */
.pathways-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:48px}
.pathway-card{background:var(--bone);border:1px solid var(--line);border-radius:8px;padding:26px 20px;display:flex;flex-direction:column;cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.pathway-card:hover{transform:translateY(-4px);border-color:var(--acid);box-shadow:0 12px 24px rgba(0,0,0,.08)}
.pathway-index{font:9px var(--mono);color:#736d64;letter-spacing:.08em;margin-bottom:14px;display:block}
.pathway-card h4{font:600 18px var(--sans);letter-spacing:-.03em;color:var(--ink);margin:0 0 10px}
.pathway-card p{font-size:12px;line-height:1.5;color:#5a544b;margin:0 0 20px}
.pathway-action-link{margin-top:auto;font:9px var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--acid);display:flex;justify-content:space-between;border-top:1px solid rgba(0,0,0,.08);padding-top:12px}

/* Minimalist Dispatch Strip */
.dispatch-strip{background:#171513;color:var(--paper);border-radius:10px;padding:clamp(28px,4vw,44px);box-shadow:0 20px 40px rgba(0,0,0,.35)}
.dispatch-prompt{margin-bottom:24px}
.dispatch-kicker{font:9px var(--mono);letter-spacing:.1em;color:var(--acid);display:block;margin-bottom:8px}
.dispatch-prompt h3{font:500 clamp(22px,2.4vw,32px)/1.1 var(--sans);letter-spacing:-.04em;color:#f4eee5;margin:0}

.dispatch-form{display:flex;flex-direction:column;gap:14px}
.dispatch-inputs-row{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center}
.dispatch-select{background:#23211e;border:1px solid #45423b;color:#dedcd3;font:11px var(--mono);padding:14px 16px;border-radius:6px;outline:0;cursor:pointer;transition:border-color .2s}
.dispatch-select:focus{border-color:var(--acid)}

.dispatch-input{width:100%;background:#23211e;border:1px solid #45423b;color:#f4eee5;font:14px var(--sans);padding:14px 16px;border-radius:6px;outline:0;transition:border-color .2s}
.dispatch-input:focus{border-color:var(--acid)}

.dispatch-submit-btn{background:var(--paper);color:var(--ink);border:0;padding:15px 24px;border-radius:6px;font:600 11px var(--mono);text-transform:uppercase;letter-spacing:.06em;cursor:pointer;display:inline-flex;align-items:center;gap:12px;transition:all .25s ease;white-space:nowrap}
.dispatch-submit-btn:hover{background:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(0,0,0,.3)}

.dispatch-query-input{width:100%;background:transparent;border:0;border-bottom:1px solid #3d3a34;color:#dedcd3;font:12px var(--sans);padding:10px 4px;outline:0;transition:border-color .2s}
.dispatch-query-input:focus{border-color:#888}

/* Dispatch Inline Acknowledgment Card */
.dispatch-receipt{background:#211f1c;border:1px solid #3d3a34;border-radius:8px;padding:24px;animation:fadeIn .3s ease}
.receipt-pill-row{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.receipt-ticket-pill{font:10px var(--mono);color:var(--paper);background:#141312;border:1px solid #44413b;padding:4px 8px;border-radius:4px}
.receipt-airgap-pill{font:9px var(--mono);color:#55ff88;background:rgba(85,255,136,.1);padding:4px 8px;border-radius:4px}
.dispatch-receipt h4{font:600 20px var(--sans);color:#f4eee5;margin:0 0 10px;letter-spacing:-.03em}
.dispatch-receipt p{font-size:13px;line-height:1.55;color:#b8b3a7;margin:0 0 20px;max-width:680px}
.receipt-action-group{display:flex;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.receipt-new-btn{background:transparent;border:0;color:#88847c;font:10px var(--mono);text-transform:uppercase;cursor:pointer;padding:0;transition:color .2s}
.receipt-new-btn:hover{color:#fff;text-decoration:underline}

@media(max-width:850px){
  .pathways-grid{grid-template-columns:1fr 1fr}
  .dispatch-inputs-row{grid-template-columns:1fr}
}
@media(max-width:500px){
  .pathways-grid{grid-template-columns:1fr}
}
footer{padding:clamp(60px,8vw,100px) max(28px,8vw) 44px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:32px}
.footer-top-row{display:flex;align-items:center}
.footer-wordmark-lg{font-size:clamp(64px,10vw,128px)!important;letter-spacing:-4px!important;line-height:.9!important;display:inline-flex!important;align-items:center!important;font-weight:700!important;text-decoration:none}
.footer-wordmark-lg .wm-suffix{font-weight:400}
.footer-wordmark-lg sup{font-size:clamp(16px,2.2vw,28px)!important;margin-left:6px!important;font-family:var(--mono)}
.footer-bottom-row{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;border-top:1px solid rgba(0,0,0,.08);padding-top:24px}
.footer-bottom-row p,.footer-bottom-row span{font:10px var(--mono);margin:0;color:#595951}
.setup-modal{position:fixed;z-index:400;inset:0;background:rgba(17,17,15,.7);backdrop-filter:blur(4px);display:grid;place-items:center;padding:20px;opacity:0;visibility:hidden;transition:.3s}
.setup-modal.is-open{opacity:1;visibility:visible}
.setup-card{background:#e7e5dd;width:min(465px,100%);min-height:500px;padding:38px;position:relative;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:17px 20px 0 rgba(0,0,0,.32)}
.close-modal{position:absolute;top:12px;right:17px;border:0;background:transparent;font:30px var(--serif);cursor:pointer}
.setup-card h2{font:500 48px/.95 var(--serif);letter-spacing:-.05em;margin:21px 0 14px}
.setup-card>p:not(.eyebrow){font-size:15px;line-height:1.5;max-width:330px;margin:0}
.setup-orb{width:70px;height:70px;font-size:38px;background:#1b1b1a;color:var(--acid);margin:28px auto 0}
.setup-dots{display:flex;gap:6px;margin:32px 0}
.setup-dots i{width:6px;height:6px;border-radius:50%;background:#a7a69f}
.setup-dots i.active{background:#1a1a18}
.setup-card .button{margin-top:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.reveal,.reveal-image{opacity:0;transform:translateY(22px);animation:reveal .8s cubic-bezier(.2,.7,.1,1) forwards}
.reveal:nth-child(1){animation-delay:.85s}
.reveal:nth-child(2){animation-delay:.98s}
.reveal:nth-child(3){animation-delay:1.1s}
.reveal:nth-child(4){animation-delay:1.22s}
.reveal-image{animation-delay:1.05s}
@keyframes reveal{to{opacity:1;transform:none}
}
@media(max-width:800px){.site-nav nav{display:none}
.hero{grid-template-columns:1fr;padding-top:125px;min-height:auto}
.hero-image-wrap{min-height:350px;margin-top:20px}
.hero-image{width:120%;margin-left:-14%}
.hero-scroll{display:none}
.statement{padding-top:110px;padding-bottom:85px}
.statement-foot{grid-template-columns:1fr;gap:18px;margin-top:40px}
.device-section{padding-left:12px;padding-right:12px;padding-bottom:90px}
.device-labels{padding:0 6px}
.ink-page{min-height:485px;padding:15px;border-width:6px}
.ink-page h3{font-size:25px}
.incline-diagram{transform:scale(.8);transform-origin:top left;margin-bottom:-25px}
.tutor-head{margin:14px 0}
.bubble{font-size:10px;padding:7px}
.hint-level{width:calc(100% - 30px);bottom:67px;font-size:7px;gap:5px}
.hint-level i{width:9px}
.screen-button{bottom:14px;width:calc(100% - 30px);font-size:8px;padding:10px}
.stylus{height:230px;width:10px}
.device-controls{grid-template-columns:1fr 1fr 1fr;gap:4px}
.device-control{font-size:8px}
.device-controls p{grid-column:1/-1;text-align:left;margin-top:15px}
.experience{padding-top:90px;padding-bottom:95px}
.feature-rail{display:flex;overflow:auto;margin-left:-28px;margin-right:-28px;padding:0 28px 8px;gap:12px;margin-top:48px;scroll-snap-type:x mandatory}
.feature-card{min-width:285px;scroll-snap-align:start;min-height:450px}
.chapter{grid-template-columns:1fr;padding-top:90px;padding-bottom:90px}
.subject-list{margin-top:40px}
.built{padding-top:90px;padding-bottom:80px}
.spec-grid{grid-template-columns:1fr 1fr;margin-top:52px}
.spec-grid article:nth-child(2){border-right:0}
.spec-grid article{min-height:210px;margin-right:12px;padding-top:20px}
.join{padding-top:90px;padding-bottom:90px}
footer{flex-wrap:wrap;gap:12px}
footer span{margin-left:0;width:100%}
.site-nav{padding:0 28px}
.nav-cta{font-size:9px}
.hero h1,.statement h2,.experience h2,.chapter h2,.built h2,.join h2,.metrics-header h2,.classroom-header h2,.savings-header h2,.pathways-header h2{font-size:clamp(38px,8vw,54px)}
}
@media(max-width:430px){.hero{padding-left:23px;padding-right:23px}
.section-shell{padding-left:23px;padding-right:23px}
.device-section{padding-left:8px;padding-right:8px}
.ink-page{padding:12px 10px}
.lesson-page{padding-left:12px}
.screen-meta{font-size:7px}
.lesson-page h3{font-size:21px}
.tutor-head strong{font-size:10px}
.stylus{height:185px}
.bubble{font-size:9px}
.work-area{height:53px}
.prompt{font-size:10px}
.device-labels{font-size:8px}
.setup-card{padding:28px 22px}
}

/* Refinement pass: fluid geometry and hardware-derived copper accent. */
:root{--ink:#171513;--paper:#f4eee5;--warm:#ded1c3;--bone:#ebe0d2;--line:#b9aa9d;--acid:#c77957;--accent-pale:#e5b69f}
.hero{min-height:100svh;padding-top:clamp(116px,11vw,150px);grid-template-columns:minmax(280px,.88fr) minmax(430px,1.12fr);gap:clamp(10px,2vw,42px);background:radial-gradient(circle at 81% 57%,rgba(199,121,87,.2),transparent 23%),radial-gradient(circle at 73% 76%,rgba(116,83,60,.12),transparent 31%)}
.hero-text{font-size:clamp(15px,1.4vw,17px)}.hero-actions{flex-wrap:wrap}.hero-image-wrap{min-height:clamp(410px,47vw,660px);align-items:center;justify-content:center;isolation:isolate}.hero-image{width:min(900px,72vw);max-width:none;margin-left:0;mix-blend-mode:normal;filter:drop-shadow(0 30px 30px rgba(39,25,17,.22));transform:rotate(-2deg) translateY(1.7%);transition:transform .9s cubic-bezier(.2,.7,.1,1);z-index:2}.hero-image-wrap:hover .hero-image{transform:rotate(0deg) translateY(-1.2%)}.product-halo{position:absolute;z-index:0;width:75%;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle,rgba(229,182,159,.55),rgba(199,121,87,.12) 47%,transparent 68%);filter:blur(8px)}
.orbit{border-color:rgba(63,43,32,.23);z-index:1}.orbit-one{width:min(650px,64vw);height:min(300px,30vw);bottom:8%;right:-4%}.orbit-two{width:min(490px,50vw);height:min(240px,25vw);bottom:11%;right:8%}.image-caption{bottom:4%;right:4%;z-index:3;border:0;background:var(--paper);color:var(--ink);padding:9px 10px;cursor:pointer;transition:transform .2s,background .2s}.image-caption:hover{transform:translateY(-3px);background:var(--accent-pale)}.image-caption b{font-size:13px}
.card-detail,.spec-detail{width:100%;border:0;border-top:1px solid currentColor;background:transparent;color:inherit;text-align:left;margin-top:18px;padding:12px 0 0;font:10px var(--mono);text-transform:uppercase;letter-spacing:.06em;cursor:pointer;display:flex;justify-content:space-between;transition:opacity .2s,transform .2s}.card-detail:hover,.spec-detail:hover{opacity:.64;transform:translateX(4px)}.spec-detail{margin-top:auto;color:var(--accent-pale);border-color:#595952}.feature-card{padding-bottom:25px}.feature-card .card-detail{margin-top:14px}.feature-card .stroke-demo,.feature-card .hint-demo,.feature-card .offline-mark{margin-top:auto}.subject-list button:focus-visible,.info-trigger:focus-visible,.card-detail:focus-visible,.spec-detail:focus-visible{outline:2px solid currentColor;outline-offset:4px}
.info-modal{position:fixed;z-index:405;inset:0;background:rgba(23,21,19,.73);backdrop-filter:blur(5px);display:grid;place-items:center;padding:20px;opacity:0;visibility:hidden;transition:.3s}.info-modal.is-open{opacity:1;visibility:visible}.info-card{background:var(--paper);width:min(560px,100%);min-height:410px;padding:clamp(29px,5vw,55px);position:relative;box-shadow:18px 20px 0 rgba(0,0,0,.28);display:flex;flex-direction:column;justify-content:center}.info-card h2{font:500 clamp(40px,5vw,66px)/.94 var(--serif);letter-spacing:-.06em;margin:22px 0 18px;max-width:430px}.info-card>p:not(.eyebrow){font-size:16px;line-height:1.55;max-width:420px;margin:0}.info-next{margin-top:35px;border:0;border-bottom:1px solid var(--ink);align-self:flex-start;background:transparent;padding:0 0 5px;font:11px var(--mono);text-transform:uppercase;cursor:pointer}.info-next span{font-size:14px;margin-left:20px}
@media(min-width:801px){.hero-copy{z-index:4}.hero-image{width:min(800px,67vw);transform:rotate(-2deg) translate(11%,1.7%)}.hero-image-wrap:hover .hero-image{transform:rotate(0deg) translate(11%,-1.2%)}}
@media(max-width:800px){.hero{grid-template-columns:1fr;padding-top:125px;min-height:auto}.hero-image-wrap{min-height:clamp(310px,82vw,460px);margin-top:20px}.hero-image{width:clamp(490px,132vw,700px);margin-left:0}.product-halo{width:90%}.orbit-one{width:120%;height:45%;right:-22%}.orbit-two{width:90%;height:36%;right:-6%}.image-caption{font-size:8px;right:1%;bottom:0}.feature-card{min-height:510px}.spec-grid article{display:flex;flex-direction:column}.spec-detail{margin-top:auto}.info-card{min-height:440px}}
@media(max-width:430px){.hero{padding-left:23px;padding-right:23px}.hero-image-wrap{min-height:330px}.hero-image{width:580px}.image-caption{right:0;bottom:-2px}.info-card{padding:32px 24px}.info-card h2{font-size:43px}.card-detail{font-size:9px}}

/* ==========================================================================
   KiTab Enhanced Interactive & Investor-Grade Design Upgrades
   ========================================================================== */

/* Navigation & Hero Buttons */
.nav-right{display:flex;align-items:center;gap:18px}
.nav-pill{background:var(--ink);color:var(--paper);border:0;border-radius:20px;padding:6px 14px;font:500 10px var(--mono);text-transform:uppercase;cursor:pointer;letter-spacing:.04em;transition:all .25s ease}
.nav-pill:hover{background:var(--acid);color:var(--ink);transform:translateY(-1px)}
.nav-investor{color:var(--acid);font-weight:500}

.button-outline{background:transparent;color:var(--ink);border:1px solid var(--ink);padding:15px 18px;cursor:pointer;font:500 12px var(--mono);text-transform:uppercase;letter-spacing:.04em;display:inline-flex;align-items:center;gap:12px;transition:all .25s}
.button-outline:hover{background:var(--ink);color:var(--paper)}

/* 3D Device Viewport & Interactive Stage */
.subject-bar{max-width:1000px;margin:0 auto 18px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.subject-bar-title{font:10px var(--mono);color:#949287;letter-spacing:.08em}
.subject-tabs{display:flex;gap:6px;flex-wrap:wrap}
.sub-tab{background:transparent;border:1px solid #4a4a45;color:#b0ada3;font:10px var(--mono);padding:7px 12px;border-radius:4px;cursor:pointer;transition:all .2s ease}
.sub-tab:hover{border-color:var(--acid);color:var(--paper)}
.sub-tab.active{background:var(--acid);color:var(--ink);border-color:var(--acid);font-weight:600}
.cleanse-btn{background:transparent;border:1px dashed #6b6b64;color:#a5a39a;font:10px var(--mono);padding:7px 12px;border-radius:4px;cursor:pointer;transition:all .2s}
.cleanse-btn:hover{background:#2e2e2b;color:#fff}

.device-3d-viewport{perspective:1400px;max-width:1020px;margin:0 auto}
.device-stage{transform-style:preserve-3d;transition:transform .15s ease-out;will-change:transform}

/* Calibrated Authentic E-Paper Refresh Waveform (Slow 0.85s with no blinding pure white) */
.device-stage.eink-cleansing .ink-page{animation:authenticEinkCleanse .85s cubic-bezier(.4,0,.2,1)}
@keyframes authenticEinkCleanse{
  0%{background-color:var(--bone);color:var(--ink);filter:none}
  15%{background-color:#171513;color:#dedcd3;filter:contrast(1.2)}
  35%{background-color:#dedcd3;color:#171513;filter:contrast(1.1)}
  55%{background-color:#171513;color:#dedcd3;filter:contrast(1.3)}
  75%{background-color:#ebe5db;color:#171513;filter:none}
  100%{background-color:var(--bone);color:var(--ink);filter:none}
}

/* Dynamic STEM Diagram & Controls (Strict Monochrome E-Ink Grayscale) */
.lesson-header-area{margin-bottom:12px}
.stem-diagram-container{height:165px;background:#dedcd3;border:1px solid #b8b7ae;border-radius:4px;position:relative;margin:10px 0;overflow:hidden}
#stemDiagramCanvas{display:block;width:100%;height:100%}

.param-slider-wrap{background:#dbd9d0;border:1px solid #b8b7ae;border-radius:4px;padding:8px 10px;margin-bottom:12px}
.param-slider-wrap label{font:9px var(--mono);display:block;color:#171513;margin-bottom:4px}
.param-slider-wrap input[type="range"]{width:100%;accent-color:#171513;cursor:pointer}
.slider-ticks{display:flex;justify-content:space-between;font:8px var(--mono);color:#55524c;margin-top:2px}

/* Interactive Stylus Work Area (Strict Monochrome) */
.work-section{background:#dcd9cf;border:1px solid #b8b7ae;border-radius:4px;padding:8px;position:relative;margin-bottom:12px}
.work-toolbar{display:flex;align-items:center;gap:6px;margin-bottom:6px;font:9px var(--mono)}
.tool-label{color:#444}
.tool-btn{background:#eae7de;border:1px solid #a3a298;color:#222;font:9px var(--mono);padding:3px 7px;border-radius:3px;cursor:pointer}
.tool-btn.active{background:#171513;color:#fff;border-color:#171513}
.ocr-status{margin-left:auto;font:8px var(--mono);color:#33312e;background:#dedad0;border:1px solid #b5b1a6;padding:2px 6px;border-radius:2px}
.work-canvas-wrap{position:relative;background:#f2efe7;border:1px dashed #99978e;border-radius:3px;height:78px}
#drawCanvas{display:block;width:100%;height:100%;cursor:crosshair;touch-action:none}
.draw-hint{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none;font:9px var(--mono);color:#737168;white-space:nowrap;transition:opacity .3s}

/* Voice Preview Button in Tutor Page (Strict Monochrome) */
.voice-preview-btn{margin-left:auto;background:#242220;border:1px solid #575550;color:#e8e5dc;font:9px var(--mono);padding:4px 9px;border-radius:14px;cursor:pointer;display:flex;align-items:center;gap:6px;transition:all .2s}
.voice-preview-btn:hover{border-color:#888;background:#33312e}
.voice-bars{display:flex;gap:2px;align-items:flex-end;height:10px}
.voice-bars i{width:2px;height:3px;background:#dedcd3;border-radius:1px}
.voice-preview-btn.playing .voice-bars i:nth-child(1){animation:vbar .4s infinite alternate}
.voice-preview-btn.playing .voice-bars i:nth-child(2){animation:vbar .6s .1s infinite alternate}
.voice-preview-btn.playing .voice-bars i:nth-child(3){animation:vbar .5s .2s infinite alternate}
.voice-preview-btn.playing .voice-bars i:nth-child(4){animation:vbar .7s .15s infinite alternate}
@keyframes vbar{to{height:10px}}

/* Live Neural Draw Stream HUD */
.edge-json-hud{max-width:1000px;margin:16px auto 0;background:#0d0d0c;border:1px solid #363632;border-radius:8px;padding:16px;box-shadow:0 15px 30px rgba(0,0,0,.5);animation:fadeIn .3s ease}
.json-hud-header{display:flex;align-items:center;gap:8px;font:10px var(--mono);color:#a8a69d;border-bottom:1px solid #292926;padding-bottom:10px;margin-bottom:10px}
.terminal-dot{width:8px;height:8px;border-radius:50%;background:#a8a69d}
.hud-close{margin-left:auto;background:transparent;border:0;color:#888;font-size:14px;cursor:pointer}
.hud-close:hover{color:#fff}
.json-code-stream{font:11px/1.4 var(--mono);color:#dedcd3;margin:0;overflow-x:auto;max-height:220px}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* Investor Dossier Modal & Tab Navigation */
.investor-modal{position:fixed;inset:0;z-index:500;background:rgba(12,11,10,.85);backdrop-filter:blur(8px);display:grid;place-items:center;padding:20px;opacity:0;visibility:hidden;transition:all .3s ease}
.investor-modal.is-open{opacity:1;visibility:visible}
.investor-sheet{background:var(--paper);width:min(1020px,100%);max-height:92vh;overflow-y:auto;border-radius:12px;padding:clamp(28px,4vw,44px);position:relative;box-shadow:0 30px 60px rgba(0,0,0,.5);color:var(--ink)}
.inv-header{border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:18px}
.inv-badge{font:10px var(--mono);color:var(--acid);letter-spacing:.1em;text-transform:uppercase;margin-bottom:6px}
.inv-header h2{font:600 clamp(28px,3.5vw,42px)/1 var(--sans);letter-spacing:-.05em;margin:0 0 8px}
.inv-subtitle{font-size:14px;color:#5e5850;margin:0;line-height:1.4}

.inv-nav-tabs{display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:20px}
.inv-tab-btn{background:transparent;border:1px solid var(--line);color:#5e5850;font:10px var(--mono);padding:7px 12px;border-radius:4px;cursor:pointer;transition:all .2s ease}
.inv-tab-btn:hover{border-color:var(--ink);color:var(--ink)}
.inv-tab-btn.active{background:var(--ink);color:var(--paper);border-color:var(--ink);font-weight:600}

.inv-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.inv-card{background:var(--bone);border:1px solid var(--line);border-radius:8px;padding:20px;margin-bottom:10px}
.inv-card.dark-theme{background:#1e1c1a;color:#ede9df;border-color:#383530}
.inv-card.dark-theme .inv-card-kicker{color:var(--acid)}
.inv-card.dark-theme .inv-list li strong{color:#fff}
.inv-card-kicker{font:9px var(--mono);text-transform:uppercase;letter-spacing:.08em;color:#787268;display:block;margin-bottom:8px}
.inv-card h4{font:600 17px var(--sans);letter-spacing:-.03em;margin:0 0 14px}
.inv-list{margin:0;padding-left:18px;font-size:13px;line-height:1.6}
.inv-list li{margin-bottom:8px}
.inv-stat-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:10px}
.stat-box{background:rgba(0,0,0,.04);border:1px solid rgba(0,0,0,.08);padding:12px;border-radius:6px}
.stat-box strong{display:block;font-size:20px;letter-spacing:-.03em;font-weight:700}
.stat-box span{font:9px var(--mono);text-transform:uppercase;color:#6e6961}

.inv-table{width:100%;border-collapse:collapse;font-size:12px;margin-top:10px}
.inv-table th,.inv-table td{padding:8px 10px;text-align:left;border-bottom:1px solid #d4cdc3}
.inv-table th{font:9px var(--mono);text-transform:uppercase;color:#6b655d}
.inv-footer{margin-top:24px;padding-top:20px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.inv-footer strong{display:block;font-size:12px}
.inv-footer span{font:10px var(--mono);color:#666}

/* Metrics & Thesis Section */
.metrics-section{padding-top:120px;padding-bottom:120px;background:var(--paper);border-top:1px solid var(--line)}
.metrics-header{max-width:780px;margin-bottom:60px}
.metrics-header h2{margin:18px 0 22px}
.metrics-intro{font-size:16px;line-height:1.55;color:#4f4a43;max-width:580px;margin:0}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.metric-card{background:var(--bone);border:1px solid var(--line);border-radius:8px;padding:26px 22px;display:flex;flex-direction:column;cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.metric-card:hover{transform:translateY(-4px);border-color:var(--acid);box-shadow:0 12px 24px rgba(0,0,0,.08)}
.metric-tag{font:9px var(--mono);color:#736d64;letter-spacing:.08em;margin-bottom:16px}
.metric-val{font:600 clamp(32px,3.8vw,48px)/.95 var(--sans);letter-spacing:-.06em;color:var(--ink);margin-bottom:14px}
.metric-val span{font-size:18px;font-weight:400;color:var(--acid);font-family:var(--serif)}
.metric-desc{font-size:12px;line-height:1.5;color:#5a544b;margin:0 0 20px}
.metric-footer{margin-top:auto;font:9px var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--acid);display:flex;justify-content:space-between;border-top:1px solid rgba(0,0,0,.08);padding-top:10px}

/* ==========================================================================
   KiTab Authentic E-Paper UI Components (Section 02 Redesign)
   ========================================================================== */

/* Card 1: Socratic Diagnostic Lab */
.kitab-ui-diag{background:#23211f;border:1px solid #3d3a35;border-radius:8px;padding:12px;margin-top:auto;margin-bottom:12px}
.diag-segmented-bar{display:grid;grid-template-columns:repeat(2,1fr);gap:4px;margin-bottom:10px}
.diag-seg-btn{background:#161513;border:1px solid #44413b;color:#a8a39a;font:9px var(--mono);padding:6px 8px;border-radius:4px;cursor:pointer;text-align:left;transition:all .2s}
.diag-seg-btn:hover{color:#fff;border-color:#666}
.diag-seg-btn.active{background:#f4eee5;color:#171513;border-color:#f4eee5;font-weight:600}
.kitab-note-card{background:#181615;border:1px solid #3a3732;border-radius:6px;padding:10px 12px}
.note-meta-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.note-tag{font:9px var(--mono);color:#dedcd3;letter-spacing:.02em}
.note-time{font:8px var(--mono);color:#88847c}
.ki-quote{font:12px/1.4 var(--sans);color:#f4eee5;margin:0;border-left:2px solid #888;padding-left:8px}

/* Card 2: Progressive Hint Stack */
.kitab-hint-stack{display:flex;flex-direction:column;gap:6px;margin-top:auto;margin-bottom:12px}
.hint-step-card{background:#ede9df;border:1px solid #c9c3b6;border-radius:6px;padding:10px 12px;cursor:pointer;transition:all .2s ease}
.hint-step-card:hover{border-color:#171513;transform:translateX(3px)}
.hint-step-card.active{background:#171513;color:#ede9df;border-color:#171513;box-shadow:0 6px 14px rgba(0,0,0,.15)}
.hstep-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}
.hstep-pill{font:8px var(--mono);letter-spacing:.06em;font-weight:600;color:#7a7469}
.hint-step-card.active .hstep-pill{color:#c77957}
.hstep-type{font:8px var(--mono);color:#948e83}
.hint-step-card.active .hstep-type{color:#a8a39a}
.hint-step-card p{font:11px/1.35 var(--sans);margin:0}

/* Card 3: Hardware Sovereignty & Privacy Dashboard */
.kitab-audit-panel{background:#1d1c1a;border:1px solid #383530;border-radius:8px;padding:12px;margin-top:auto;margin-bottom:12px;display:flex;flex-direction:column;gap:10px}
.audit-selector{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}
.audit-seg-btn{background:#141312;border:1px solid #44413b;color:#a8a39a;font:9px var(--mono);padding:5px 6px;border-radius:4px;cursor:pointer;text-align:center;transition:all .2s}
.audit-seg-btn:hover{color:#fff;border-color:#666}
.audit-seg-btn.active{background:#f4eee5;color:#171513;border-color:#f4eee5;font-weight:600}
.audit-card-body{background:#171513;border:1px solid #33302b;border-radius:6px;padding:10px;display:flex;flex-direction:column;gap:6px}
.audit-metric-row{display:flex;justify-content:space-between;align-items:center;font:9px var(--mono);border-bottom:1px dashed #2a2824;padding-bottom:4px}
.audit-metric-row:last-child{border-bottom:0;padding-bottom:0}
.metric-name{color:#9e998f}
.metric-state{color:#f4eee5;font-weight:500}
.metric-state.active-state{color:#55ff88}

/* ==========================================================================
   High-Contrast CBSE Curriculum List (Section 03 Redesign)
   ========================================================================== */
.curriculum-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.curriculum-badges span{background:rgba(23,21,19,.1);border:1px solid rgba(23,21,19,.2);border-radius:20px;padding:5px 12px;font:9px var(--mono);text-transform:uppercase;color:var(--ink)}

.subject-list{display:flex;flex-direction:column;margin-top:20px;border-top:1px solid rgba(23,21,19,.25)}
.subject-row{background:transparent;border:0;border-bottom:1px solid rgba(23,21,19,.25);width:100%;text-align:left;padding:22px 12px;display:flex;align-items:center;cursor:pointer;color:var(--ink);transition:all .25s ease}
.subject-row:hover{background:rgba(23,21,19,.04);transform:translateX(6px)}
.row-num{font:12px var(--mono);color:rgba(23,21,19,.5);width:36px;flex-shrink:0}
.row-text{display:flex;flex-direction:column;gap:4px;flex:1}
.row-title{font:600 clamp(22px,2.8vw,32px)/1 var(--sans);letter-spacing:-.04em;color:var(--ink)}
.row-sub{font:13px var(--sans);color:rgba(23,21,19,.85);font-weight:500;line-height:1.4}
.row-icon{font-size:20px;color:var(--ink);opacity:.6;transition:transform .25s ease,opacity .25s ease;margin-left:14px}
.subject-row:hover .row-icon{transform:translate(3px,-3px);opacity:1}


/* Hardware Teardown Intro */
.built-intro{font-size:16px;line-height:1.55;color:#b0aba0;max-width:540px;margin:18px 0 0}

/* Classroom Ecosystem */
.classroom{background:#171513;color:var(--paper);padding-top:140px;padding-bottom:140px;border-top:1px solid #2d2b28}
.classroom-header{max-width:760px;margin-bottom:60px}
.classroom-header h2{margin:18px 0 22px}
.classroom-header p{font-size:16px;line-height:1.55;color:#aaa59b;margin:0}
.classroom-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.class-card{background:#211f1c;border:1px solid #383530;border-radius:8px;padding:28px 24px 22px;display:flex;flex-direction:column;cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.class-card:hover{transform:translateY(-4px);border-color:#555;box-shadow:0 14px 28px rgba(0,0,0,.4)}
.class-num{font:9px var(--mono);color:var(--acid);letter-spacing:.08em;margin-bottom:18px;display:block;text-transform:uppercase}
.class-card h4{font:600 clamp(19px,2vw,22px)/1.15 var(--sans);letter-spacing:-.03em;margin:0 0 12px;color:#f4eee5}
.class-card p{font-size:13px;line-height:1.55;color:#9e998f;margin:0 0 22px}
.class-action-link{margin-top:auto;font:9px var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--acid);display:flex;justify-content:space-between;align-items:center;border-top:1px solid #2e2b27;padding-top:12px}
.class-action-link b{font-size:13px;font-weight:600}

/* ==========================================================================
   Section 06: Value Equation Dual-Ledger Architecture
   ========================================================================== */
.savings{background:var(--paper);padding-top:130px;padding-bottom:130px;border-top:1px solid var(--line)}
.savings-header{max-width:780px;margin-bottom:50px}
.savings-header h2{margin:18px 0 22px}
.savings-header p{font-size:16px;line-height:1.55;color:#4f4a43;margin:0}

.ledger-comparison-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:28px}
.ledger-column{border-radius:10px;padding:clamp(24px,3.5vw,34px);display:flex;flex-direction:column;box-shadow:0 12px 30px rgba(0,0,0,.04)}

/* Traditional Spend Column */
.ledger-traditional{background:#171513;color:var(--paper);border:1px solid #2e2b27}
.ledger-badge-trap{font:9px var(--mono);color:#e57373;background:rgba(229,115,115,.12);padding:4px 9px;border-radius:4px;letter-spacing:.08em;display:inline-block;margin-bottom:12px;text-transform:uppercase}
.ledger-traditional h3{font:600 20px/1.2 var(--sans);color:#f4eee5;margin:0 0 8px;letter-spacing:-.03em}
.ledger-total-figure{font:700 clamp(32px,3.8vw,46px)/1 var(--sans);letter-spacing:-.05em;color:#8c867c;margin-bottom:6px}
.ledger-head-note{font:11px var(--mono);color:#7a756c;margin:0 0 24px;line-height:1.4}

.ledger-traditional .ledger-row{border-bottom:1px solid #282522}
.ledger-traditional .ledger-row-info strong{color:#e8e4db}
.ledger-traditional .ledger-row-info span{color:#8a8479}
.ledger-traditional .ledger-row-cost del{color:#a8a297;font:600 13px var(--mono)}

/* KiTab Sovereign Column */
.ledger-kitab{background:var(--bone);color:var(--ink);border:1px solid var(--line)}
.ledger-badge-sovereign{font:9px var(--mono);color:var(--acid);background:rgba(199,121,87,.12);padding:4px 9px;border-radius:4px;letter-spacing:.08em;display:inline-block;margin-bottom:12px;text-transform:uppercase}
.ledger-kitab h3{font:600 20px/1.2 var(--sans);color:var(--ink);margin:0 0 8px;letter-spacing:-.03em}
.ledger-total-figure.highlight-price{color:var(--ink)}
.ledger-total-figure.highlight-price span{font:500 20px var(--sans);color:#666}

.ledger-kitab .ledger-row{border-bottom:1px solid #dfd6c8}
.ledger-kitab .ledger-row-info strong{color:var(--ink)}
.ledger-kitab .ledger-row-info span{color:#5c564c}
.ledger-row-solution{font:600 12px var(--mono);color:#1b6b2e;background:rgba(27,107,46,.08);padding:4px 8px;border-radius:4px;white-space:nowrap}

/* Ledger Row Structure */
.ledger-items-list{display:flex;flex-direction:column}
.ledger-row{display:flex;justify-content:space-between;align-items:center;padding:15px 0;gap:14px}
.ledger-row-info{display:flex;flex-direction:column;gap:3px}
.ledger-row-info strong{font-size:13px;font-weight:600;letter-spacing:-.01em}
.ledger-row-info span{font-size:11px;line-height:1.4}

.ledger-column-foot{margin-top:auto;padding-top:20px;display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(0,0,0,.1);font:10px var(--mono);text-transform:uppercase}
.ledger-traditional .ledger-column-foot{border-top-color:#2a2824}
.foot-spend-trap{font:700 14px var(--mono);color:#e57373}
.foot-spend-kitab{font:700 14px var(--mono);color:var(--ink)}

/* Value Summary Ribbon */
.ledger-summary-ribbon{background:#171513;color:var(--paper);border-radius:10px;padding:24px 32px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;box-shadow:0 15px 35px rgba(0,0,0,.15)}
.ribbon-kicker{font:9px var(--mono);color:var(--acid);letter-spacing:.1em;display:block;margin-bottom:4px}
.ribbon-big-saving strong{font:700 clamp(20px,2.2vw,28px)/1.1 var(--sans);color:var(--acid);letter-spacing:-.03em;display:block}
.ribbon-big-saving span{font-size:12px;color:#aaa59b;margin-top:3px;display:block}
.ribbon-proofs{display:grid;grid-template-columns:1fr 1fr;gap:10px 24px}
.proof-item{font:12px var(--sans);color:#ded8cc;display:flex;align-items:center;gap:8px}
.proof-check{color:var(--acid);font-weight:700}

@media(max-width:850px){
  .ledger-comparison-grid{grid-template-columns:1fr}
  .ledger-summary-ribbon{flex-direction:column;align-items:flex-start}
}

@media(max-width:800px){
  .metrics-grid{grid-template-columns:1fr 1fr}
  .classroom-grid{grid-template-columns:1fr 1fr}
  .inv-grid{grid-template-columns:1fr}
}
@media(max-width:500px){
  .metrics-grid{grid-template-columns:1fr}
  .classroom-grid{grid-template-columns:1fr}
}

/* ==========================================================================
   Mobile Landscape Gateway & Clean Simulation Visibility
   ========================================================================== */
.mobile-landscape-gateway{display:none}

/* Portrait Mobile Devices (Phones in vertical mode): Hide cramped simulation and show orientation gateway */
@media(max-width:768px) and (orientation: portrait){
  .mobile-landscape-gateway{
    display:flex;
    flex-direction:column;
    align-items:center;
    text-align:center;
    background:#1c1a18;
    border:1px solid #3d3933;
    border-radius:12px;
    padding:34px 22px;
    margin:20px auto 30px;
    max-width:440px;
    box-shadow:0 18px 36px rgba(0,0,0,.45);
    animation:fadeIn .3s ease;
  }
  .gateway-icon-wrap{
    width:56px;
    height:56px;
    border-radius:50%;
    background:#2b2824;
    border:1px solid var(--acid);
    display:grid;
    place-items:center;
    margin-bottom:18px;
  }
  .gateway-rotate-icon{
    font-size:26px;
    color:var(--acid);
    animation:rotatePulse 2.4s ease-in-out infinite;
    display:inline-block;
  }
  @keyframes rotatePulse{
    0%,100%{transform:rotate(0deg) scale(1)}
    50%{transform:rotate(90deg) scale(1.15)}
  }
  .gateway-kicker{
    font:9px var(--mono);
    color:var(--acid);
    letter-spacing:.12em;
    text-transform:uppercase;
    margin-bottom:10px;
    display:block;
  }
  .mobile-landscape-gateway h3{
    font:600 24px/1.15 var(--sans);
    color:#f4eee5;
    letter-spacing:-.04em;
    margin:0 0 10px;
  }
  .mobile-landscape-gateway p{
    font-size:13px;
    line-height:1.55;
    color:#b8b2a5;
    margin:0 0 20px;
    max-width:340px;
  }
  .mobile-landscape-gateway p strong{
    color:#f4eee5;
  }
  .gateway-badge{
    background:#141312;
    border:1px solid #3a3731;
    color:#99948a;
    font:9px var(--mono);
    padding:6px 14px;
    border-radius:20px;
    letter-spacing:.06em;
  }

  /* Completely hide cramped simulation in portrait on phone */
  .subject-bar,
  .device-labels,
  .device-3d-viewport,
  .device-controls{
    display:none !important;
  }
}

/* Landscape Mobile Phones: Dynamically reveal and expand full dual-screen testbed */
@media(orientation: landscape) and (max-height: 600px){
  .mobile-landscape-gateway{display:none !important}
  .subject-bar{display:flex !important;margin-bottom:12px}
  .device-labels{display:grid !important}
  .device-3d-viewport{display:block !important;max-width:98vw !important}
  .device-stage{display:grid !important;grid-template-columns:1fr 1fr !important;max-width:98vw !important;margin:0 auto !important;transform:none !important}
  .device-stage .lesson-page,
  .device-stage .tutor-page{display:flex !important}
  .device-stage .tablet-spine{display:block !important}
  .ink-page{min-height:360px !important;padding:12px 14px !important}
  .stem-diagram-container{height:115px !important}
  .work-canvas-wrap{height:58px !important}
  .chat{max-height:150px !important}
  .device-controls{display:grid !important;margin-top:14px}
}

/* Mobile Nav Bar Spacing & Wordmark Gap */
@media(max-width:600px){
  .site-nav{padding:0 18px !important;gap:12px !important;height:70px !important}
  .site-nav nav{display:none !important}
  .site-nav .wordmark{font-size:clamp(21px,5vw,26px) !important;letter-spacing:-1px !important;flex-shrink:0}
  .nav-right{gap:8px !important;margin-left:auto}
  .nav-pill{padding:6px 12px !important;font-size:9px !important;letter-spacing:.04em;white-space:nowrap}
  .nav-cta{display:none !important}
  .footer-bottom-row{flex-direction:column;align-items:flex-start;gap:8px}
}