/* ============================================================
   Kairo — landing styles · monochrome (black/white) premium
   Multi-accent used only for interactive highlights.
   ============================================================ */

/* ── Theme tokens ───────────────────────────────────── */
:root{
  --accent:#6C8CFF;            /* indigo — links, focus, small highlights */
  --accent-2:#A480FF;          /* violet */
  --accent-3:#54CCF0;          /* cyan — student tutor */
  --pink:#FF8AB4;
  --amber:#F5B14C;
  --violet:#A480FF;
  --danger:#FF6B6B;
  --grad-brand:linear-gradient(120deg,#8AA2FF,#A480FF 55%,#54CCF0);

  --r-sm:12px; --r-md:18px; --r-lg:26px; --r-pill:999px;
  --maxw:1180px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --font:'Plus Jakarta Sans',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}

/* DARK (default) — true black */
html[data-theme="dark"]{
  --bg:#000000;
  --bg-2:#0C0C0E;
  --text1:#FAFAFA;
  --text2:rgba(250,250,250,.62);
  --text3:rgba(250,250,250,.40);
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.08);
  --glass-soft:rgba(255,255,255,.028);
  --border:rgba(255,255,255,.11);
  --border-2:rgba(255,255,255,.18);
  --shadow:0 30px 80px rgba(0,0,0,.6);
  --nav-bg:rgba(0,0,0,.62);
  --aurora-a:rgba(108,140,255,.16);
  --aurora-b:rgba(84,204,240,.12);
  --aurora-c:rgba(164,128,255,.14);
  --grid-line:rgba(255,255,255,.04);
  color-scheme:dark;
}
/* LIGHT — clean white */
html[data-theme="light"]{
  --bg:#FFFFFF;
  --bg-2:#FBFBFC;
  --text1:#0A0A0B;
  --text2:rgba(10,10,11,.60);
  --text3:rgba(10,10,11,.40);
  --glass:rgba(10,10,11,.025);
  --glass-2:rgba(10,10,11,.045);
  --glass-soft:rgba(10,10,11,.02);
  --border:rgba(10,10,11,.10);
  --border-2:rgba(10,10,11,.16);
  --shadow:0 24px 60px rgba(16,24,40,.10);
  --nav-bg:rgba(255,255,255,.74);
  --aurora-a:rgba(108,140,255,.12);
  --aurora-b:rgba(84,204,240,.10);
  --aurora-c:rgba(164,128,255,.10);
  --grid-line:rgba(10,10,11,.045);
  color-scheme:light;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  font-family:var(--font);background:var(--bg);color:var(--text1);
  line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;transition:background .4s var(--ease),color .4s var(--ease);
}
a{color:inherit;text-decoration:none}
svg{display:block}
em{font-style:normal}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--text1);color:var(--bg);padding:10px 16px;z-index:300}
.skip-link:focus{left:0}
.grad{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* line icons */
.ico{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* animated meters — bars grow & gauge sweeps when scrolled into view */
@property --p{syntax:'<percentage>';inherits:false;initial-value:0%}
.cf-bar i,.wk-bar i,.lg-bar i,.path-foot .bar i,.pc-proj .scale i{transition:width 1s var(--ease)}
.gauge{transition:--p 1.2s var(--ease)}

/* ── Ambient background ─────────────────────────────── */
.bg-aurora,.bg-grid{position:fixed;inset:0;z-index:-2;pointer-events:none}
.bg-aurora{
  background:
    radial-gradient(50% 40% at 80% 6%, var(--aurora-a), transparent 60%),
    radial-gradient(45% 38% at 10% 16%, var(--aurora-b), transparent 60%),
    radial-gradient(50% 45% at 60% 72%, var(--aurora-c), transparent 62%);
  animation:drift 24s ease-in-out infinite alternate;
}
@keyframes drift{0%{transform:translate3d(0,0,0) scale(1)}100%{transform:translate3d(0,-2%,0) scale(1.06)}}
.bg-grid{z-index:-1;background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(circle at 50% 16%, #000 0%, transparent 72%);mask-image:radial-gradient(circle at 50% 16%, #000 0%, transparent 72%)}
@media (prefers-reduced-motion:reduce){.bg-aurora{animation:none}}

/* ── Glass primitive ────────────────────────────────── */
.glass{background:var(--glass);border:1px solid var(--border);border-radius:var(--r-md);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%)}
.glass-soft{background:var(--glass-soft);border:1px solid var(--border);border-radius:var(--r-sm)}

/* ── Buttons ────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font);
  font-weight:700;font-size:14px;letter-spacing:-.01em;padding:11px 18px;border-radius:var(--r-pill);
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),background .18s,box-shadow .2s,border-color .2s,color .2s,opacity .2s}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-lg{padding:15px 28px;font-size:15.5px}
/* primary = monochrome invert (white on black / black on white) */
.btn-accent{background:var(--text1);color:var(--bg);box-shadow:0 10px 30px rgba(0,0,0,.25)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(0,0,0,.35);opacity:.92}
.btn-glass{background:var(--glass-2);color:var(--text1);border-color:var(--border-2);backdrop-filter:blur(12px)}
.btn-glass:hover{border-color:var(--text1);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--text1)}
.btn-ghost:hover{background:var(--glass-2)}

/* ── Nav ────────────────────────────────────────────── */
.nav{position:sticky;top:0;z-index:100;transition:background .3s,box-shadow .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.is-stuck{background:var(--nav-bg);backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);border-bottom-color:var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px;gap:22px}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:20px;letter-spacing:-.03em}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:9px;background:var(--text1);color:var(--bg)}
.nav-links{display:flex;gap:26px}
.nav-links a{font-size:14.5px;font-weight:600;color:var(--text2);transition:color .15s}
.nav-links a:hover{color:var(--text1)}
.nav-cta{display:flex;align-items:center;gap:10px}
.theme-toggle{width:38px;height:38px;border-radius:var(--r-pill);border:1px solid var(--border);background:var(--glass);color:var(--text1);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:.2s var(--ease)}
.theme-toggle:hover{border-color:var(--text1);transform:translateY(-1px)}
html[data-theme="dark"] .theme-toggle .ic-sun{display:block}
html[data-theme="dark"] .theme-toggle .ic-moon{display:none}
html[data-theme="light"] .theme-toggle .ic-sun{display:none}
html[data-theme="light"] .theme-toggle .ic-moon{display:block}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:22px;height:2px;background:var(--text1);border-radius:2px;transition:.25s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mobile{display:none;flex-direction:column;gap:6px;padding:14px 24px 24px;background:var(--nav-bg);backdrop-filter:blur(18px);border-bottom:1px solid var(--border)}
.nav-mobile a{padding:10px 6px;font-weight:600;color:var(--text2)}
.nav-mobile .btn{margin-top:6px}

/* ── Reveal ─────────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ── Hero ───────────────────────────────────────────── */
.hero{padding:60px 0 40px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:54px;align-items:center}
.chip{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:var(--text2);background:var(--glass);border:1px solid var(--border);padding:7px 14px;border-radius:var(--r-pill);margin-bottom:24px}
.chip-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(108,140,255,.22);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(108,140,255,.22)}50%{box-shadow:0 0 0 8px rgba(108,140,255,.04)}}
.hero h1{font-size:clamp(40px,5.4vw,68px);line-height:1.02;letter-spacing:-.04em;font-weight:800}
.lede{font-size:18.5px;color:var(--text2);margin-top:24px;max-width:560px}
.hero-actions{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.hero-meta{display:flex;align-items:center;gap:8px;margin-top:30px;font-size:13px;color:var(--text3);flex-wrap:wrap}
.hero-meta b{color:var(--text2);font-weight:700}
.hero-meta i{color:var(--border-2)}
.hero-meta .dotsep{width:5px;height:5px;border-radius:50%;background:var(--accent);margin:0 6px}

/* hero ecosystem */
.hero-eco{position:relative}
.eco-stage{position:relative;height:440px;max-width:340px;margin:0 auto}
.eco-wires{position:absolute;inset:0;width:100%;height:100%}
.eco-wires .wire{fill:none;stroke:var(--accent);stroke-width:2;stroke-dasharray:5 7;opacity:.5;animation:flow 1.4s linear infinite}
@keyframes flow{to{stroke-dashoffset:-24}}
@media (prefers-reduced-motion:reduce){.eco-wires .wire{animation:none}}
.eco-node{position:absolute;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:10px;
  padding:11px 16px;border-radius:var(--r-pill);background:var(--glass);border:1px solid var(--border);
  backdrop-filter:blur(14px);font-weight:700;font-size:14px;white-space:nowrap;transition:.35s var(--ease);box-shadow:var(--shadow)}
.eco-node .eco-ic{display:inline-flex}
.eco-node .ico{width:18px;height:18px}
.eco-node.is-active{border-color:var(--text1);background:var(--glass-2);transform:translateX(-50%) scale(1.07);box-shadow:0 12px 40px rgba(0,0,0,.4)}
.n-teacher{top:18px}.n-hw{top:102px}.n-assess{top:186px}.n-ai{top:270px}
.n-ai{background:linear-gradient(120deg,rgba(108,140,255,.16),rgba(84,204,240,.12))}
.n-student{top:368px;left:22%}.n-parent{top:368px;left:78%}
.eco-caption{text-align:center;margin-top:18px;font-size:13.5px;color:var(--text3);min-height:20px;transition:.3s}

/* hero strip */
.hero-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:48px;padding:24px;border-radius:var(--r-md);background:var(--glass);border:1px solid var(--border);backdrop-filter:blur(14px)}
.hs-item{display:flex;flex-direction:column;gap:4px;align-items:center;text-align:center}
.hs-item b{font-size:28px;font-weight:800;letter-spacing:-.03em;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hs-item span{font-size:12.5px;color:var(--text3);font-weight:500;max-width:160px}

/* ── Sections ───────────────────────────────────────── */
.section{padding:96px 0;position:relative}
.section-alt::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--glass-soft)}
.sec-head{max-width:780px;margin-bottom:54px}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.eyebrow-accent2{color:var(--accent-3)}.eyebrow-pink{color:var(--pink)}.eyebrow-violet{color:var(--violet)}
.eyebrow-center{display:block;text-align:center}
.sec-head h2{font-size:clamp(28px,3.8vw,46px);line-height:1.08;letter-spacing:-.035em;font-weight:800}
.sec-sub{font-size:17.5px;color:var(--text2);margin-top:18px}

/* ── Problem ────────────────────────────────────────── */
.prob-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.prob-card{padding:26px 22px;transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
.prob-card:hover{transform:translateY(-6px);border-color:var(--border-2);box-shadow:var(--shadow)}
.prob-card header{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.prob-emoji{display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:13px;background:var(--glass-2);border:1px solid var(--border);color:var(--text1)}
.prob-card h3{font-size:18px;font-weight:800;letter-spacing:-.02em}
.prob-card ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.prob-card li{position:relative;padding-left:20px;font-size:14px;color:var(--text2)}
.prob-card li::before{content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:50%;background:var(--danger);opacity:.75}

/* ── Books highlight (signature value prop) ─────────── */
.books{padding:30px 0 96px}
.books-inner{padding:48px 44px;position:relative;overflow:hidden}
.books-inner::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(60% 90% at 100% 0%,var(--aurora-c),transparent 60%)}
.books-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:center}
.books-copy .eyebrow{margin-bottom:16px}
.books-copy h2{font-size:clamp(26px,3.4vw,42px);line-height:1.08;letter-spacing:-.035em;font-weight:800}
.books-copy p{font-size:17px;color:var(--text2);margin-top:16px}
.books-points{list-style:none;margin-top:22px;display:flex;flex-direction:column;gap:12px}
.books-points li{position:relative;padding-left:30px;font-size:15.5px;color:var(--text1);font-weight:600}
.books-points li span{color:var(--text2);font-weight:500}
.books-points li::before{content:"";position:absolute;left:0;top:4px;width:18px;height:18px;border-radius:6px;background:var(--grad-brand)}
.books-points li::after{content:"✓";position:absolute;left:4px;top:1px;font-size:12px;font-weight:800;color:#0A0A0B}

/* visual: 5 books → 1 path */
.books-viz{display:flex;align-items:center;gap:18px}
.book-stack{display:flex;flex-direction:column;gap:8px;flex-shrink:0}
.book{display:flex;align-items:center;gap:9px;padding:9px 13px;border-radius:9px;background:var(--glass-2);border:1px solid var(--border);font-size:12.5px;font-weight:700;color:var(--text2);min-width:120px}
.book::before{content:"";width:5px;height:22px;border-radius:2px;background:var(--text3)}
.book.faded{opacity:.45}
.book-arrow{display:flex;align-items:center;color:var(--text3)}
.book-arrow svg{width:30px;height:30px}
.path-card{flex:1;padding:18px;border-radius:14px;background:var(--bg-2);border:1px solid var(--border-2);box-shadow:var(--shadow)}
.path-head{display:flex;align-items:center;gap:8px;margin-bottom:14px}
.path-badge{font-size:11px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:var(--bg);background:var(--text1);padding:4px 10px;border-radius:var(--r-pill)}
.path-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 0;border-top:1px solid var(--border)}
.path-row:first-of-type{border-top:0}
.path-topic{font-size:13px;font-weight:700;color:var(--text1)}
.path-pyq{font-size:11px;font-weight:700;color:var(--accent);background:rgba(108,140,255,.12);border:1px solid rgba(108,140,255,.28);padding:3px 9px;border-radius:var(--r-pill);white-space:nowrap}
.path-foot{margin-top:14px;display:flex;align-items:center;gap:10px}
.path-foot .bar{flex:1;height:8px;border-radius:var(--r-pill);background:var(--glass-soft);overflow:hidden}
.path-foot .bar i{display:block;height:100%;width:84%;border-radius:var(--r-pill);background:var(--grad-brand)}
.path-foot b{font-size:12.5px;font-weight:800}

/* ── Ecosystem cards ────────────────────────────────── */
.eco-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.eco-card{position:relative;display:flex;flex-direction:column;padding:28px 24px;overflow:hidden;transition:transform .35s var(--ease),border-color .35s,box-shadow .35s}
.eco-card::before{content:"";position:absolute;inset:0;background:var(--g);opacity:0;transition:opacity .4s;z-index:-1}
.eco-card::after{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--g);opacity:.9}
.eco-card:hover{transform:translateY(-8px);border-color:var(--border-2);box-shadow:var(--shadow)}
.eco-card:hover::before{opacity:.08}
.eco-card-ic{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:13px;background:var(--glass-2);border:1px solid var(--border);margin-bottom:16px;color:var(--text1)}
.eco-card-ic .ico{width:24px;height:24px}
.eco-card h3{font-size:19px;font-weight:800;letter-spacing:-.02em}
.eco-card p{font-size:14.5px;color:var(--text2);margin-top:10px}
.eco-card-more{list-style:none;opacity:1;margin-top:16px}
.eco-card-more li{position:relative;padding-left:18px;font-size:13.5px;color:var(--text2);margin-top:9px}
.eco-card-more li::before{content:"";position:absolute;left:0;top:7px;width:8px;height:8px;border-radius:3px;background:var(--g)}
.eco-card-link{display:inline-block;margin-top:auto;padding-top:18px;font-size:13.5px;font-weight:700;color:var(--text1);opacity:.85}
.eco-card-link:hover{opacity:1;color:var(--accent)}
/* generated worksheet preview (teacher card) */
.ev-q{font-size:13px;font-weight:600;color:var(--text1);margin-top:10px;line-height:1.3}
.ev-q-sm{color:var(--text2);font-weight:500}
.eco-viz .hv-chips{margin-top:12px}

/* app-style mini visuals inside each ecosystem card */
.eco-viz{margin-top:16px;padding:14px;border-radius:12px;background:var(--glass-soft);border:1px solid var(--border);min-height:148px;display:flex;flex-direction:column;justify-content:center}
/* generating → ready crossfade (teacher card) */
.ev-gen{position:relative;display:block}
.ev-gen-ready{opacity:0;transition:opacity .55s var(--ease)}
.ev-gen-load{position:absolute;inset:14px;opacity:1;transition:opacity .55s var(--ease)}
.ev-gen.is-ready .ev-gen-ready{opacity:1}
.ev-gen.is-ready .ev-gen-load{opacity:0;pointer-events:none}
/* professional question-mix bar + legend */
.ev-mix{margin-top:14px}
.ev-mix-bar{display:flex;gap:2px;height:8px;border-radius:var(--r-pill);overflow:hidden}
.ev-mix-bar i{display:block;height:100%}
.ev-mix-bar i:nth-child(1){background:var(--accent)}
.ev-mix-bar i:nth-child(2){background:var(--accent-2)}
.ev-mix-bar i:nth-child(3){background:var(--accent-3)}
.ev-mix-legend{display:flex;justify-content:space-between;margin-top:9px}
.ev-mix-legend span{font-size:11px;color:var(--text3);font-weight:600}
.ev-mix-legend b{color:var(--text1);font-weight:800}
.ev-row{display:flex;align-items:center;justify-content:space-between;gap:8px}
.ev-pill{font-size:10px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;padding:4px 9px;border-radius:var(--r-pill);white-space:nowrap}
.ev-pill-live,.ev-pill-up{color:var(--accent);background:rgba(108,140,255,.14);border:1px solid rgba(108,140,255,.32)}
.ev-src{font-size:10.5px;font-weight:700;color:var(--text3)}
.ev-line{height:8px;border-radius:6px;background:var(--glass-2);margin-top:9px;animation:shimmer 2.2s var(--ease) infinite}
.ev-line.w75{width:75%;animation-delay:.2s}.ev-line.w55{width:55%;animation-delay:.4s}
.ev-conf{display:flex;gap:6px;margin-bottom:12px}
.ev-conf span{flex:1;text-align:center;font-size:11px;font-weight:700;color:var(--text3);padding:6px 0;border-radius:8px;border:1px solid var(--border);background:var(--glass-2)}
.ev-conf span.on{color:var(--accent);border-color:var(--accent);background:rgba(108,140,255,.12)}
.ev-bar{height:8px;border-radius:var(--r-pill);background:var(--glass-2);overflow:hidden}
.ev-bar i{display:block;height:100%;border-radius:var(--r-pill);background:var(--grad-brand);transition:width 1s var(--ease)}
.ev-cap{display:block;font-size:11px;color:var(--text3);margin-top:8px;font-weight:600}
.ev-row .ev-cap{margin-top:0}
.ev-spark{width:100%;height:44px;color:var(--accent);margin-bottom:8px}
.ev-spark polyline{stroke-dasharray:300;stroke-dashoffset:300;animation:draw 1.7s var(--ease) .2s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
@media (prefers-reduced-motion:reduce){.ev-spark polyline{animation:none;stroke-dashoffset:0}.ev-line{animation:none}}
.ev-league{display:flex;flex-direction:column;gap:9px}
.ev-lg{display:flex;align-items:center;gap:10px}
.ev-lg span{width:30px;font-size:11px;font-weight:700;color:var(--text2)}
.ev-lg .ev-bar{flex:1}
.ev-warn .ev-bar i{background:var(--danger)}

/* ── Split feature sections ─────────────────────────── */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-rev .split-visual{order:-1}
.split-copy h2{font-size:clamp(26px,3.4vw,40px);line-height:1.1;letter-spacing:-.03em;font-weight:800;margin-top:4px}
.feat-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.feat-pills span{font-size:13px;font-weight:600;color:var(--text2);padding:7px 13px;border-radius:var(--r-pill);background:var(--glass);border:1px solid var(--border)}
.check-list{list-style:none;margin-top:22px;display:flex;flex-direction:column;gap:13px}
.check-list li{position:relative;padding-left:30px;font-size:15.5px;color:var(--text2)}
.check-list li::before{content:"";position:absolute;left:0;top:5px;width:18px;height:18px;border-radius:6px;background:var(--glass-2);border:1.5px solid var(--text1)}
.check-list li::after{content:"✓";position:absolute;left:4px;top:2px;font-size:12px;font-weight:800;color:var(--text1)}

/* voice demo */
.voice-demo{display:flex;align-items:center;gap:14px;padding:16px 18px;margin-top:26px}
.voice-ic{display:inline-flex;color:var(--accent)}
.voice-label{font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.voice-text{font-size:15.5px;font-weight:600;color:var(--text1);margin-top:3px;min-height:22px}
.voice-caret{display:inline-block;width:2px;height:1.05em;background:var(--accent);margin-left:2px;vertical-align:-2px;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

/* dashboard mockup */
.dash{overflow:hidden;box-shadow:var(--shadow)}
.dash-bar{display:flex;align-items:center;gap:7px;padding:13px 16px;border-bottom:1px solid var(--border);background:var(--glass-soft)}
.dash-bar i{width:11px;height:11px;border-radius:50%;background:var(--border-2)}
.dash-bar span{margin-left:10px;font-size:12.5px;font-weight:600;color:var(--text3)}
.dash-body{padding:20px}
.dash-row{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.dash-kicker{font-size:11.5px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:var(--text3)}
.src-pill{font-size:11px;font-weight:700;color:var(--accent);background:rgba(108,140,255,.12);border:1px solid rgba(108,140,255,.28);padding:4px 10px;border-radius:var(--r-pill)}
.qline{margin-top:14px;font-size:15px;font-weight:700;padding:13px 15px;border-radius:12px;background:var(--glass-2);border:1px solid var(--border)}
.qline-sm{margin-top:9px;font-size:13.5px;font-weight:600;color:var(--text2)}
.dash-split{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}
.mini-stat{padding:13px;border-radius:12px;background:var(--glass-soft);border:1px solid var(--border);text-align:center}
.mini-stat b{display:block;font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--text1)}
.mini-stat span{font-size:11px;color:var(--text3)}
.heat{margin-top:18px}
.heat-title{font-size:11.5px;font-weight:700;color:var(--text3);text-transform:uppercase;letter-spacing:.05em}
.heat-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:5px;margin-top:10px}
.heat-grid i{aspect-ratio:1;border-radius:4px;background:var(--accent);opacity:var(--o,.4)}

/* ── Student tutor ──────────────────────────────────── */
.tutor-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:30px;align-items:start}
.flow{padding:22px}
.flow-steps{display:flex;flex-direction:column;gap:7px}
.flow-step{text-align:left;font-family:var(--font);font-size:14.5px;font-weight:700;color:var(--text2);
  background:transparent;border:1px solid transparent;border-radius:12px;padding:11px 14px;cursor:pointer;transition:.25s var(--ease)}
.flow-step:hover{color:var(--text1);background:var(--glass-soft)}
.flow-step.is-on{color:var(--text1);background:var(--glass-2);border-color:var(--accent-3)}
.flow-step.done{color:var(--accent-3)}
.flow-track{height:6px;border-radius:var(--r-pill);background:var(--glass-soft);margin-top:16px;overflow:hidden}
.flow-track i{display:block;height:100%;width:12%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--accent),var(--accent-3));transition:width .4s var(--ease)}

.phone-wrap{position:relative;display:flex;justify-content:center}
.phone{position:relative;width:248px;height:506px;border-radius:38px;background:var(--bg-2);border:1px solid var(--border-2);box-shadow:var(--shadow);padding:14px;z-index:1}
.phone-notch{position:absolute;top:14px;left:50%;transform:translateX(-50%);width:88px;height:20px;border-radius:0 0 14px 14px;background:var(--bg);z-index:2}
.phone-screen{height:100%;border-radius:26px;background:linear-gradient(180deg,var(--glass-soft),transparent);border:1px solid var(--border);padding:34px 14px 14px;display:flex;flex-direction:column;overflow:hidden}
.chat{display:flex;flex-direction:column;gap:10px;flex:1}
.bubble{max-width:88%;padding:11px 13px;border-radius:16px;font-size:13.5px;line-height:1.4}
.bubble.bot{align-self:flex-start;background:var(--glass-2);border:1px solid var(--border);border-bottom-left-radius:5px}
.bubble.user{align-self:flex-end;background:var(--text1);color:var(--bg);border-bottom-right-radius:5px;font-weight:600}
.phone-visual{margin-top:10px;border-radius:14px;border:1px solid var(--border);background:var(--glass-soft);padding:12px;min-height:96px;display:flex;align-items:center;justify-content:center}
.phone-foot{margin-top:auto;padding-top:12px;display:flex;justify-content:center}
.phone-tag{font-size:11px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-3);background:rgba(84,204,240,.12);border:1px solid rgba(84,204,240,.3);padding:5px 12px;border-radius:var(--r-pill)}
.phone-glow{position:absolute;inset:6% 12%;z-index:0;background:radial-gradient(60% 50% at 50% 30%,rgba(84,204,240,.28),transparent 70%);filter:blur(30px)}
.tutor-feats{list-style:none;display:flex;flex-direction:column;gap:13px}
.tutor-feats li{position:relative;padding-left:26px;font-size:15px;color:var(--text2)}
.tutor-feats li b{color:var(--text1);font-weight:700}
.tutor-feats li::before{content:"✦";position:absolute;left:0;top:0;color:var(--accent-3);font-size:13px}

/* real-app tutor mockup (Nudge/Guide/Show) */
.tw{display:flex;flex-direction:column;height:100%;animation:fade .4s var(--ease)}
.tw-anchor{background:var(--glass-2);border:1px solid var(--border);border-radius:11px;padding:9px 11px;margin-bottom:10px;flex-shrink:0}
.tw-anchor-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}
.tw-anchor-label{font-size:8.5px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--text3)}
.tw-weak{font-size:8.5px;font-weight:700;color:var(--amber);background:rgba(245,177,76,.16);padding:2px 7px;border-radius:var(--r-pill)}
.tw-anchor-q{font-size:11.5px;font-weight:700;color:var(--text1);line-height:1.25}
.tw-body{flex:1;display:flex;flex-direction:column;gap:8px;overflow:hidden;min-height:0}
.tw-body .bubble{font-size:12px;padding:9px 11px;max-width:92%}
.tw-viz{margin-top:2px}
.tw-step{background:var(--glass-2);border:1px solid var(--border);border-radius:10px;padding:8px 10px;margin-bottom:6px}
.tw-step-n{font-size:8.5px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--text3)}
.tw-formula{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:4px 8px;margin:5px 0;color:var(--accent-3)}
.tw-step p{font-size:10.5px;color:var(--text2);line-height:1.35}
.tw-conf{display:flex;gap:6px}
.tw-conf span{flex:1;text-align:center;font-size:11px;font-weight:700;color:var(--text3);padding:7px 0;border-radius:9px;border:1px solid var(--border);background:var(--glass-2)}
.tw-conf span.on{color:var(--accent);border-color:var(--accent);background:rgba(108,140,255,.12)}
.tw-mem{background:var(--glass-2);border:1px solid var(--border);border-radius:10px;padding:9px 11px}
.tw-mem-label{display:block;font-size:8.5px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--text3);margin-bottom:6px}
.tw-mem-row{display:flex;align-items:center;justify-content:space-between;margin-top:5px}
.tw-mem-row span{font-size:11px;color:var(--text1)}
.tw-mem-row b{font-size:11px;font-weight:800}
.tw-mem-row b.ok{color:var(--accent)}
.tw-gears{margin-top:10px;flex-shrink:0}
.tw-gear-hint{display:block;font-size:9.5px;font-weight:700;color:var(--text3);text-align:center;margin-bottom:6px}
.tw-gear-row{display:flex;gap:6px}
.tw-gear{flex:1;text-align:center;font-size:11px;font-weight:700;color:var(--text2);padding:7px 0;border-radius:10px;border:1px solid var(--border);background:var(--glass-2);transition:.25s var(--ease)}
.tw-gear.on{color:#fff;background:var(--grad-brand);border-color:transparent}
.tw-gear.locked{opacity:.4}

/* number-line mini visual */
.viz-numline{width:100%}
.viz-numline .axis{height:2px;background:var(--text3);position:relative;margin:30px 0}
.viz-numline .tick{position:absolute;top:-5px;width:2px;height:12px;background:var(--text3)}
.viz-numline .pt{position:absolute;top:-7px;width:14px;height:14px;border-radius:50%;background:var(--accent-3);box-shadow:0 0 0 4px rgba(84,204,240,.25)}
.viz-numline .lbl{position:absolute;top:14px;font-size:10px;color:var(--text3);transform:translateX(-50%)}

/* ── Parent ─────────────────────────────────────────── */
.parent-card{padding:24px;box-shadow:var(--shadow)}
.pc-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.pc-avatar{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--pink),var(--violet))}
.pc-head b{display:block;font-size:15px;font-weight:800}
.pc-head span{font-size:12px;color:var(--text3)}
.pc-line{font-size:15px;color:var(--text2);margin-bottom:14px}
.pc-line b{color:var(--text1)}
.growth{margin-bottom:14px}
.growth-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text3)}
.spark{width:100%;height:60px;color:var(--violet);margin-top:6px}
.pc-why{padding:14px}
.pc-why b{font-size:14px;color:var(--text1)}
.pc-why p{font-size:13.5px;color:var(--text2);margin-top:6px}
.pc-proj{margin-top:14px;padding:14px;border-radius:12px;background:var(--glass-2);border:1px solid var(--border)}
.pc-proj-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.pc-proj-top span{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text3)}
.pc-proj-top b{font-size:13px;font-weight:800;color:var(--accent)}
.pc-proj .scale{position:relative;height:8px;border-radius:var(--r-pill);background:var(--glass-soft);overflow:hidden}
.pc-proj .scale i{position:absolute;top:0;left:58%;width:26%;height:100%;border-radius:var(--r-pill);background:var(--grad-brand)}
.pc-action{margin-top:14px;padding:14px;border-radius:12px;background:linear-gradient(120deg,rgba(255,138,180,.14),rgba(164,128,255,.14));border:1px solid var(--border)}
.pc-action span{font-size:12px;color:var(--text3);font-weight:600}
.pc-action b{display:block;font-size:15.5px;margin-top:4px}

/* ── School dashboard ───────────────────────────────── */
.school-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:18px}
.kpi{padding:14px;border-radius:12px;background:var(--glass-soft);border:1px solid var(--border);text-align:center}
.kpi b{font-size:24px;font-weight:800;color:var(--text1)}
.kpi .suffix{font-size:16px;font-weight:800;color:var(--text1)}
.kpi small{display:block;font-size:11px;color:var(--text3);margin-top:3px}
.league{display:flex;flex-direction:column;gap:10px;margin-top:12px}
.lg-row{display:flex;align-items:center;gap:12px}
.lg-row span{width:34px;font-size:13px;font-weight:700;color:var(--text2)}
.lg-bar{flex:1;height:9px;border-radius:var(--r-pill);background:var(--glass-soft);overflow:hidden}
.lg-bar i{display:block;height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--accent-2),var(--accent-3))}
.lg-row b{width:26px;text-align:right;font-size:13px;font-weight:800}
.lg-row.warn b{color:var(--danger)}

/* ── School extra visuals ───────────────────────────── */
.dash-kicker-mt{display:block;margin-top:18px;margin-bottom:2px}
.school-trend{display:flex;align-items:center;gap:14px;margin-top:14px;padding-top:14px;border-top:1px solid var(--border)}
.school-trend .ev-spark{flex:1;height:38px;margin:0;color:var(--accent-2)}
.st-meta{display:flex;flex-direction:column;align-items:flex-end;gap:6px}
.st-meta span:first-child{font-size:11px;color:var(--text3);font-weight:600}

/* ── Comparison ─────────────────────────────────────── */
.compare{display:grid;grid-template-columns:1fr auto 1.4fr;align-items:stretch;gap:0;padding:0;overflow:hidden}
.cmp-col{padding:34px}
.cmp-old{opacity:.92}
.cmp-new{position:relative;background:radial-gradient(120% 120% at 100% 0%,rgba(108,140,255,.10),transparent 60%)}
.cmp-new::before{content:"";position:absolute;inset:0;border-left:1px solid var(--border);box-shadow:inset 0 0 0 1px rgba(108,140,255,.10);pointer-events:none}
.cmp-tag{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--text3);padding:6px 13px;border-radius:var(--r-pill);background:var(--glass-soft);border:1px solid var(--border);margin-bottom:20px}
.cmp-tag-on{color:var(--bg);background:var(--grad-brand);border-color:transparent}
.cmp-col ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.cmp-old li{font-size:15px;color:var(--text3);position:relative;padding-left:26px}
.cmp-old li::before{content:"–";position:absolute;left:6px;color:var(--text3);font-weight:800}
.cmp-new li{display:flex;align-items:center;gap:11px;font-size:15.5px;color:var(--text1);font-weight:600;
  opacity:0;transform:translateX(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.compare.in .cmp-new li{opacity:1;transform:none}
.compare.in .cmp-new li:nth-child(1){transition-delay:.08s}
.compare.in .cmp-new li:nth-child(2){transition-delay:.16s}
.compare.in .cmp-new li:nth-child(3){transition-delay:.24s}
.compare.in .cmp-new li:nth-child(4){transition-delay:.32s}
.compare.in .cmp-new li:nth-child(5){transition-delay:.40s}
.compare.in .cmp-new li:nth-child(6){transition-delay:.48s}
.compare.in .cmp-new li:nth-child(7){transition-delay:.56s}
.cmp-ic{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:9px;background:rgba(108,140,255,.12);border:1px solid rgba(108,140,255,.28);color:var(--accent);flex-shrink:0}
.cmp-ic .ico{width:16px;height:16px}
.cmp-foot{margin-top:20px;font-size:13px;font-weight:600;color:var(--text3)}
.cmp-foot-on{color:var(--accent)}
.cmp-vs{align-self:center;font-size:13px;font-weight:800;color:var(--text3)}
.cmp-vs span{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;border:1px solid var(--border);background:var(--bg-2);box-shadow:var(--shadow)}

/* ── How-it-works flow rail ─────────────────────────── */
.flow-rail{position:relative;max-width:720px;margin:0 auto 40px}
.fr-line{position:absolute;top:18px;left:19px;right:19px;height:3px;background:var(--glass-2);border-radius:var(--r-pill);z-index:0;overflow:hidden}
.fr-line i{display:block;height:100%;width:0;background:var(--grad-brand);border-radius:var(--r-pill);transition:width .6s var(--ease)}
.fr-steps{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center}
.fr-dot{width:38px;height:38px;border-radius:50%;border:1px solid var(--border);background:var(--bg-2);color:var(--text3);font-weight:800;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-family:var(--font);transition:.3s var(--ease)}
.fr-dot:hover{color:var(--text1);border-color:var(--text2)}
.fr-dot.done{color:var(--accent);border-color:var(--accent)}
.fr-dot.is-on{background:var(--grad-brand);color:#fff;border-color:transparent;transform:scale(1.12);box-shadow:0 8px 24px rgba(108,140,255,.4)}
.fr-caption{text-align:center;margin-top:20px;font-size:15.5px;font-weight:600;color:var(--text2);min-height:22px;transition:opacity .3s}

/* how-it-works detail stage (synced to the rail) */
.how-stage{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;padding:38px;min-height:300px}
.hs-detail-head{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.hs-step-no{display:inline-flex;align-items:center;justify-content:center;min-width:46px;height:46px;padding:0 6px;border-radius:13px;background:var(--grad-brand);color:#fff;font-weight:800;font-size:16px;letter-spacing:-.02em}
.hs-detail-head h3{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.025em;line-height:1.1}
.hs-desc{font-size:16.5px;color:var(--text2);margin-bottom:18px}
.hs-points{list-style:none;display:flex;flex-direction:column;gap:11px}
.hs-points li{position:relative;padding-left:28px;font-size:15px;color:var(--text1);font-weight:500}
.hs-points li::before{content:"";position:absolute;left:0;top:6px;width:16px;height:16px;border-radius:5px;background:rgba(108,140,255,.14);border:1.5px solid var(--accent)}
.hs-points li::after{content:"✓";position:absolute;left:3.5px;top:3px;font-size:11px;font-weight:800;color:var(--accent)}
.hs-stat{display:inline-block;margin-top:20px;font-size:12.5px;font-weight:800;letter-spacing:.02em;color:var(--accent);background:rgba(108,140,255,.12);border:1px solid rgba(108,140,255,.3);padding:7px 14px;border-radius:var(--r-pill)}
.hs-visual{display:flex;align-items:center;justify-content:center}
.hv-card{width:100%;max-width:340px;background:var(--bg-2);border:1px solid var(--border-2);border-radius:16px;padding:20px;box-shadow:var(--shadow);animation:fade .45s var(--ease)}
.hv-card .ev-line{margin-top:10px}
.hv-chips{display:flex;gap:7px;margin-top:14px}
.hv-chips span{font-size:11px;font-weight:700;color:var(--text2);background:var(--glass-2);border:1px solid var(--border);padding:4px 11px;border-radius:var(--r-pill)}
.hv-q{font-size:15px;font-weight:700;margin-bottom:14px}
.hv-card .ev-conf{margin-bottom:10px}
.ev-pill-warn{color:var(--danger);background:rgba(255,107,107,.12);border:1px solid rgba(255,107,107,.32)}
.hv-flag{display:flex;align-items:flex-start;gap:11px;padding:13px;border-radius:12px;background:rgba(255,107,107,.08);border:1px solid rgba(255,107,107,.25);margin-bottom:12px}
.hv-flag-ic{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:7px;background:var(--danger);color:#fff;font-weight:800;font-size:14px;flex-shrink:0}
.hv-flag b{display:block;font-size:13.5px}
.hv-flag span{font-size:12px;color:var(--text2)}
.hv-ba{display:flex;flex-direction:column;gap:12px;margin-bottom:12px}
.hv-ba-row{display:flex;align-items:center;gap:10px}
.hv-ba-row span{width:48px;font-size:12.5px;font-weight:700;color:var(--text2)}
.hv-ba-row .ev-bar{flex:1}
.hv-ba-row b{width:38px;text-align:right;font-size:13px;font-weight:800}
.hv-card .viz-numline{width:100%}

/* ── Philosophy ─────────────────────────────────────── */
.philosophy{padding:120px 0;text-align:center;position:relative}
.phil-head{font-size:clamp(40px,7vw,84px);line-height:1.02;letter-spacing:-.045em;font-weight:800;margin-top:10px}
.phil-sub{font-size:19px;color:var(--text2);margin-top:26px;max-width:620px;margin-inline:auto}

/* ── Journey ────────────────────────────────────────── */
.journey{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.jn{position:relative;overflow:hidden;padding:26px 24px;transition:transform .35s var(--ease),border-color .35s,box-shadow .35s}
.jn::after{content:"";position:absolute;top:0;left:0;height:3px;width:0;background:var(--grad-brand);transition:width .55s var(--ease)}
.jn:hover{transform:translateY(-5px);border-color:var(--border-2);box-shadow:var(--shadow)}
.jn.is-active{border-color:var(--border-2);transform:translateY(-5px);box-shadow:0 18px 44px rgba(108,140,255,.20)}
.jn.is-active::after{width:100%}
/* connector chevrons between cards (desktop) */
.jn::before{content:"›";position:absolute;right:-13px;top:50%;transform:translateY(-50%);z-index:3;font-size:22px;font-weight:800;color:var(--text3);opacity:.6}
.jn:nth-child(3n)::before,.jn:last-child::before{display:none}
.jn-top{display:flex;align-items:center;justify-content:space-between}
.jn-no{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--text1);background:var(--glass-2);border:1px solid var(--border);padding:4px 10px;border-radius:var(--r-pill)}
.jn-ic{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:var(--glass-2);border:1px solid var(--border);color:var(--text1);transition:.35s var(--ease)}
.jn-ic .ico{width:21px;height:21px}
.jn.is-active .jn-ic{background:var(--grad-brand);border-color:transparent;color:#fff;transform:scale(1.06)}
.jn b{display:block;font-size:18px;font-weight:800;letter-spacing:-.02em;margin:16px 0 8px}
.jn p{font-size:14px;color:var(--text2)}
.loop-note{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:30px;font-size:15px;font-weight:600;color:var(--text2)}
.loop-ic{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;border:1px solid var(--accent);color:var(--accent)}
.loop-ic svg{width:16px;height:16px;animation:spin 5s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.loop-ic svg{animation:none}}

/* ── Metrics + quotes ───────────────────────────────── */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:54px}
.metric{text-align:center}
.metric b{font-size:clamp(40px,5.4vw,58px);font-weight:800;letter-spacing:-.04em;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.metric .suffix{font-size:28px;font-weight:800;color:var(--accent)}
.metric p{font-size:14.5px;color:var(--text2);margin-top:12px;max-width:200px;margin-inline:auto}
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.quote{padding:26px 24px}
.quote blockquote{font-size:16.5px;font-weight:600;line-height:1.5;letter-spacing:-.01em}
.quote figcaption{margin-top:16px;font-size:13px;color:var(--text3)}

/* ── Final CTA ──────────────────────────────────────── */
.final{padding:80px 0 110px}
.final-inner{padding:64px 40px;text-align:center;position:relative;overflow:hidden}
.final-inner::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(60% 80% at 50% 0%,var(--aurora-a),transparent 65%)}
.final-inner h2{font-size:clamp(28px,4.2vw,48px);font-weight:800;letter-spacing:-.035em;line-height:1.08;margin-top:8px}
.final-inner p{font-size:18px;color:var(--text2);max-width:600px;margin:18px auto 0}
.final-actions{display:flex;gap:12px;justify-content:center;margin-top:32px;flex-wrap:wrap}
.final-pilot{display:inline-block;margin-top:22px;font-size:14.5px;font-weight:700;color:var(--accent)}

/* ── Footer ─────────────────────────────────────────── */
.footer{padding:56px 0 30px;border-top:1px solid var(--border);background:var(--glass-soft)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--text2);max-width:300px}
.footer-fine{color:var(--text3) !important;margin-top:8px !important;font-weight:600}
.footer-col h4{font-size:12.5px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--text3);margin-bottom:16px}
.footer-col a,.footer-static{display:block;font-size:14.5px;color:var(--text2);font-weight:500;margin-bottom:11px;transition:color .15s}
.footer-col a:hover{color:var(--text1)}
.footer-static{color:var(--text3)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;margin-top:44px;padding-top:24px;border-top:1px solid var(--border);font-size:13px;color:var(--text3);flex-wrap:wrap}

/* ── Analytics showcase ─────────────────────────────── */
.an-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.an-card{padding:24px;transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
.an-card:hover{transform:translateY(-5px);border-color:var(--border-2);box-shadow:var(--shadow)}
.an-card h4{font-size:11.5px;font-weight:800;text-transform:uppercase;letter-spacing:.07em;color:var(--text3);margin-bottom:18px}
.an-note{font-size:12.5px;color:var(--text3);margin-top:16px;line-height:1.45}
.gauge{position:relative;width:128px;height:128px;border-radius:50%;background:conic-gradient(var(--accent) 0 var(--p,78%),var(--glass-soft) var(--p,78%) 100%);display:flex;align-items:center;justify-content:center;margin:0 auto}
.gauge::before{content:"";position:absolute;inset:13px;border-radius:50%;background:var(--bg-2);border:1px solid var(--border)}
.gauge b{position:relative;font-size:28px;font-weight:800;letter-spacing:-.02em}
.gauge-cap{text-align:center;font-size:11px;color:var(--text3);margin-top:16px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.conf-bars{display:flex;flex-direction:column;gap:13px}
.cf-row{display:flex;align-items:center;gap:10px}
.cf-row span{width:46px;font-size:13px;font-weight:700;color:var(--text2)}
.cf-bar{flex:1;height:9px;border-radius:var(--r-pill);background:var(--glass-soft);overflow:hidden}
.cf-bar i{display:block;height:100%;border-radius:var(--r-pill)}
.cf-sure .cf-bar i{background:var(--accent)}
.cf-okay .cf-bar i{background:var(--amber)}
.cf-doubt .cf-bar i{background:var(--danger)}
.cf-row b{width:36px;text-align:right;font-size:13px;font-weight:800}
.rt-q{font-size:14.5px;font-weight:700;margin-bottom:12px}
.rt-meta{display:flex;align-items:center;justify-content:space-between}
.rt-pct{font-size:34px;font-weight:800;letter-spacing:-.03em;color:var(--danger)}
.rt-flag{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--danger);background:rgba(255,107,107,.12);border:1px solid rgba(255,107,107,.32);padding:6px 12px;border-radius:var(--r-pill)}
.weak-list{display:flex;flex-direction:column;gap:13px}
.wk-row{display:flex;align-items:center;gap:10px}
.wk-row span{flex:1;font-size:13.5px;font-weight:600;color:var(--text2)}
.wk-bar{width:64px;height:7px;border-radius:var(--r-pill);background:var(--glass-soft);overflow:hidden}
.wk-bar i{display:block;height:100%;border-radius:var(--r-pill);background:var(--grad-brand)}
.wk-row b{width:34px;text-align:right;font-size:12.5px;font-weight:800;color:var(--text2)}
.risk-list{display:flex;flex-direction:column;gap:12px}
.rk-row{display:flex;align-items:center;gap:11px}
.rk-av{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11.5px;font-weight:800;background:var(--glass-2);border:1px solid var(--border);color:var(--text1)}
.rk-name{flex:1;font-size:14px;font-weight:600}
.rk-drop{font-size:14px;font-weight:800;color:var(--danger)}
.an-card .heat-grid{margin-top:0}

/* ── Responsive ─────────────────────────────────────── */
@media (max-width:1040px){
  .prob-grid,.eco-cards,.an-grid{grid-template-columns:repeat(2,1fr)}
  .tutor-grid{grid-template-columns:1fr 1fr}
  .tutor-feats{grid-column:span 2}
  .metrics{grid-template-columns:repeat(2,1fr);gap:36px}
  .quotes{grid-template-columns:1fr}
}
@media (max-width:880px){
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-eco{max-width:360px;margin:0 auto}
  .books-grid{grid-template-columns:1fr;gap:32px}
  .split{grid-template-columns:1fr;gap:36px}
  .split-rev .split-visual{order:0}
  .journey{grid-template-columns:1fr}
  .jn::before{display:none}
  .how-stage{grid-template-columns:1fr;gap:26px;padding:28px}
  .hs-visual{order:-1}
  .compare{grid-template-columns:1fr;gap:18px}
  .cmp-vs{margin:0 auto}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .nav-links,.nav-cta .btn-ghost{display:none}
  .nav-toggle{display:flex}
  .nav-mobile.is-open{display:flex}
  .section{padding:68px 0}
  .hero-strip{grid-template-columns:repeat(2,1fr);gap:20px}
  .books-viz{flex-direction:column;align-items:stretch}
  .book-arrow{transform:rotate(90deg);align-self:center}
  .tutor-grid{grid-template-columns:1fr}
  .tutor-feats{grid-column:span 1}
  .phone-wrap{order:-1}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .prob-grid,.eco-cards,.metrics,.an-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn-lg{width:100%}
  .hero-actions,.final-actions{flex-direction:column}
  .eco-stage{transform:scale(.92)}
  .books-inner{padding:32px 22px}
}