/* Appedx — shared styles for the company landing page and the 23.5 product page.
   Dark ink sections carry the brand gradient; light paper sections carry the product screens.
   Everything is visible without JavaScript; site.js only adds motion on top. */

:root {
  --ink-950: #030919;
  --ink-900: #061230;
  --ink-800: #0b1c45;
  --ink-700: #14295c;
  --navy: #0e1c36;
  --blue: #0a6cff;
  --blue-2: #0095ff;
  --teal: #0cc2a6;
  --indigo: #4f46e5;
  --amber: #c2410c;
  --rose: #be123c;
  --grad: linear-gradient(100deg, #0a4bff 0%, #0095ff 55%, #0cc2a6 100%);
  --paper: #f4f6fb;
  --paper-2: #eaeef7;
  --card: #ffffff;
  --text: #0f1b38;
  --muted: #56627e;
  --line: #dfe5f1;
  --on-dark: #eef3ff;
  --on-dark-muted: #9fb0d4;
  --line-dark: rgba(160, 185, 255, .14);

  /* REUNION keeps its own identity: paper, ink, royal blue and seal gold, Plex type */
  --ru-paper: #f5f6fa;
  --ru-ink: #141a2e;
  --ru-blue: #2347d8;
  --ru-gold: #a07a2c;

  --display: "Plus Jakarta Sans", "Segoe UI", system-ui, sans-serif;
  --body: "Figtree", "Segoe UI", system-ui, sans-serif;
  --serif: "Instrument Serif", Georgia, serif;
  --plex: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  --wrap: 1240px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 18px;
  --nav-h: 72px;
  --ease: cubic-bezier(.2, .7, .1, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: clip; }
body {
  margin: 0; font-family: var(--body); font-size: 17px; line-height: 1.6; color: var(--text);
  background: var(--paper); overflow-x: clip; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--display); line-height: 1.08; letter-spacing: -.025em; margin: 0; font-weight: 800; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--blue-2); outline-offset: 3px; border-radius: 6px; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 200; background: #fff; color: var(--text); padding: 10px 16px; border-radius: 10px; }
.skip:focus { left: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.section { position: relative; padding: clamp(80px, 12vw, 160px) 0; }
.dark { background: var(--ink-900); color: var(--on-dark); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px; font: 700 12.5px/1 var(--display);
  letter-spacing: .16em; text-transform: uppercase; color: var(--blue);
}
.eyebrow::before { content: ""; width: 22px; height: 2px; border-radius: 2px; background: var(--grad); }
.dark .eyebrow { color: #6fb6ff; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.serif { font-family: var(--serif); font-weight: 400; font-style: italic; letter-spacing: -.01em; }
.h-xl { font-size: clamp(42px, 7vw, 96px); }
.h-lg { font-size: clamp(34px, 5vw, 64px); }
.h-md { font-size: clamp(28px, 3.4vw, 44px); }
.lead { font-size: clamp(17px, 1.5vw, 20px); color: var(--muted); max-width: 40em; }
.dark .lead { color: var(--on-dark-muted); }
.section-head { max-width: 820px; display: grid; gap: 20px; margin-bottom: clamp(40px, 6vw, 72px); }
.section-head.center { margin-inline: auto; text-align: center; justify-items: center; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px; min-height: 50px; padding: 0 24px; border-radius: 999px;
  font: 700 15.5px/1 var(--display); text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background-color .3s, color .3s, border-color .3s;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; transition: transform .3s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn-grad { background: var(--grad); color: #fff; box-shadow: 0 10px 30px -10px rgba(10, 108, 255, .7); }
.btn-grad:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -12px rgba(10, 108, 255, .85); }
.btn-ghost { border-color: rgba(160, 185, 255, .35); color: var(--on-dark); background: rgba(255, 255, 255, .04); }
.btn-ghost:hover { border-color: rgba(160, 185, 255, .7); background: rgba(255, 255, 255, .08); }
.btn-line { border-color: var(--line); color: var(--text); background: #fff; }
.btn-line:hover { border-color: var(--blue); color: var(--blue); }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 100; height: var(--nav-h);
  transition: background-color .4s, box-shadow .4s, backdrop-filter .4s;
}
.nav.is-scrolled, .nav.is-open {
  background: rgba(4, 11, 30, .92); -webkit-backdrop-filter: saturate(160%) blur(18px); backdrop-filter: saturate(160%) blur(18px);
  box-shadow: 0 1px 0 var(--line-dark);
}
.nav-inner { height: 100%; display: flex; align-items: center; gap: 28px; }
.nav-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; flex: none; }
.nav-logo img { height: 28px; width: auto; }
.nav-logo .sep { width: 1px; height: 26px; background: var(--line-dark); }
.nav-logo .prod { height: 34px; }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links > a, .nav-links > .dd > button {
  font: 600 15px/1 var(--display); color: #c9d6f3; text-decoration: none; padding: 10px 14px; border-radius: 10px;
  background: none; border: 0; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; transition: color .2s, background-color .2s;
}
.nav-links > a:hover, .nav-links > .dd > button:hover, .dd.is-open > button { color: #fff; background: rgba(255, 255, 255, .06); }
.nav-links > a.btn-grad { background: var(--grad); color: #fff; }
.nav-links > a.btn-grad:hover { background: var(--grad); }
.dd { position: relative; }
.dd > button svg { width: 14px; height: 14px; transition: transform .3s var(--ease); }
.dd.is-open > button svg { transform: rotate(180deg); }
.dd-panel {
  position: absolute; top: calc(100% + 12px); left: 50%; width: 560px; padding: 10px; border-radius: 20px;
  background: rgba(8, 18, 46, .96); border: 1px solid var(--line-dark); box-shadow: 0 30px 80px -20px rgba(0, 0, 0, .7);
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
  opacity: 0; visibility: hidden; transform: translate(-50%, -8px); transition: opacity .25s, transform .35s var(--ease), visibility .25s;
}
.dd.is-open .dd-panel { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.dd-item {
  display: grid; gap: 10px; padding: 18px; border-radius: 14px; text-decoration: none; color: var(--on-dark);
  transition: background-color .25s;
}
.dd-item:hover { background: rgba(255, 255, 255, .06); }
.dd-item img { height: 30px; width: auto; }
.dd-item strong { font: 700 16px/1.2 var(--display); }
.dd-item span { font-size: 14px; color: var(--on-dark-muted); line-height: 1.45; }
.nav-cta { margin-left: 8px; min-height: 42px; padding: 0 18px; font-size: 14.5px; box-shadow: none; }
.nav-toggle {
  display: none; margin-left: auto; width: 44px; height: 44px; border-radius: 12px; border: 1px solid var(--line-dark);
  background: rgba(255, 255, 255, .04); color: #fff; cursor: pointer; place-items: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 18px; height: 2px; background: currentColor; border-radius: 2px; position: relative; transition: transform .3s var(--ease), background-color .2s;
}
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav.is-open .nav-toggle span { background: transparent; }
.nav.is-open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
.nav.is-open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }

/* product page: second row with chapter links and a reading-progress line */
.subnav { position: absolute; left: 0; right: 0; top: 100%; height: 48px; background: rgba(4, 11, 30, .9); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); border-top: 1px solid var(--line-dark); }
.subnav .wrap { height: 100%; display: flex; align-items: center; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.subnav .wrap::-webkit-scrollbar { display: none; }
.subnav a {
  flex: none; font: 600 13.5px/1 var(--display); color: #93a6cf; text-decoration: none; padding: 9px 12px; border-radius: 999px; transition: color .25s, background-color .25s;
}
.subnav a:hover { color: #fff; }
.subnav a.is-active { color: #fff; background: rgba(255, 255, 255, .09); }
.subnav a .n { color: #5d79b8; margin-right: 6px; font-variant-numeric: tabular-nums; }
.progress { position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--grad); transform-origin: 0 50%; transform: scaleX(0); }

/* ---------- Browser frame used for every real screenshot ---------- */
.frame {
  position: relative; margin: 0; border-radius: 14px; overflow: hidden; background: #fff;
  box-shadow: 0 0 0 1px rgba(15, 27, 56, .08), 0 40px 90px -30px rgba(6, 18, 48, .55), 0 18px 40px -20px rgba(6, 18, 48, .35);
}
.frame-bar { height: 34px; display: flex; align-items: center; gap: 7px; padding: 0 14px; background: #eef1f7; border-bottom: 1px solid #e1e6f0; }
.frame-bar i { width: 10px; height: 10px; border-radius: 50%; background: #d3d9e6; }
.frame-bar i:nth-child(1) { background: #ff6159; }
.frame-bar i:nth-child(2) { background: #ffbd2e; }
.frame-bar i:nth-child(3) { background: #28c941; }
.frame-bar span { margin-left: 12px; font: 600 12px/1 var(--display); color: #7a86a3; letter-spacing: .01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.frame img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; object-position: top left; }
.dark .frame { box-shadow: 0 0 0 1px rgba(160, 185, 255, .16), 0 50px 120px -30px rgba(0, 0, 0, .8), 0 0 80px -20px rgba(10, 108, 255, .35); }

.chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px; border-radius: 999px; font: 600 13.5px/1.2 var(--display);
  background: rgba(255, 255, 255, .92); color: var(--text); box-shadow: 0 14px 36px -14px rgba(6, 18, 48, .45); border: 1px solid rgba(15, 27, 56, .06);
}
.chip b { font-weight: 800; white-space: nowrap; }
.chip .dot { width: 8px; height: 8px; border-radius: 50%; background: #16a34a; box-shadow: 0 0 0 4px rgba(22, 163, 74, .15); flex: none; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { padding: 7px 13px; border-radius: 999px; font: 600 13.5px/1.2 var(--display); border: 1px solid var(--line); background: #fff; color: #33405f; }
.dark .tag { background: rgba(255, 255, 255, .05); border-color: var(--line-dark); color: #c7d4f2; }

/* ---------- Landing: hero ---------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh; padding: calc(var(--nav-h) + clamp(40px, 7vw, 90px)) 0 clamp(60px, 8vw, 100px);
  background: radial-gradient(1200px 600px at 50% -10%, rgba(10, 108, 255, .28), transparent 60%),
              radial-gradient(800px 500px at 90% 70%, rgba(12, 194, 166, .14), transparent 60%),
              radial-gradient(700px 500px at 5% 80%, rgba(79, 70, 229, .16), transparent 60%), var(--ink-950);
  color: var(--on-dark); overflow: hidden; isolation: isolate;
}
.hero::after { /* fine grid that fades out */
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image: linear-gradient(rgba(160, 185, 255, .06) 1px, transparent 1px), linear-gradient(90deg, rgba(160, 185, 255, .06) 1px, transparent 1px);
  background-size: 64px 64px; -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 20%, transparent 70%); mask-image: radial-gradient(ellipse at 50% 30%, #000 20%, transparent 70%);
}
.hero-copy { text-align: center; display: grid; justify-items: center; gap: 24px; max-width: 980px; margin: 0 auto; }
.hero-copy h1 { font-size: clamp(40px, 6.6vw, 92px); letter-spacing: -.035em; }
.hero-copy h1 .serif { font-size: 1.08em; }
.hero-copy .lead { max-width: 640px; }

/* Hero: Appedx at the centre, its two products on the orbit, a few real features drifting around them */
.orbit { position: relative; max-width: 1180px; height: clamp(400px, 40vw, 500px); margin: clamp(40px, 6vw, 72px) auto 0; }
.orbit-svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.orbit-svg .ring { fill: none; stroke: rgba(111, 182, 255, .22); stroke-width: 1; vector-effect: non-scaling-stroke; }
.orbit-svg .r1 { stroke: rgba(111, 182, 255, .34); }
.orbit-svg .r2 { stroke-dasharray: 2 7; animation: flow 3s linear infinite; }
.orbit-svg .r3 { stroke: rgba(111, 182, 255, .12); }
.orbit-svg .beam-base { stroke: rgba(111, 182, 255, .25); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.orbit-svg .beam { fill: none; stroke-width: 2.5; stroke-linecap: round; vector-effect: non-scaling-stroke; stroke-dasharray: 18 120; animation: pulse-beam 2.2s linear infinite; }
@keyframes pulse-beam { from { stroke-dashoffset: 138; } to { stroke-dashoffset: 0; } }
@keyframes flow { to { stroke-dashoffset: -36; } }
@keyframes spin { to { transform: rotate(360deg); } }

.orbit-core {
  position: absolute; left: 50%; top: 50%; translate: -50% -50%; z-index: 3; padding: 26px 38px; border-radius: 28px;
  background: linear-gradient(160deg, rgba(20, 38, 92, .9), rgba(6, 14, 40, .92)); border: 1px solid rgba(111, 182, 255, .28);
  box-shadow: 0 30px 80px -20px rgba(10, 108, 255, .6), inset 0 1px 0 rgba(255, 255, 255, .08);
}
.orbit-core img { height: clamp(40px, 4.2vw, 56px); width: auto; display: block; }
.orbit-core .halo { position: absolute; inset: -40px -60px; border-radius: 50%; background: radial-gradient(closest-side, rgba(10, 108, 255, .45), transparent); z-index: -1; filter: blur(8px); animation: breathe 5s ease-in-out infinite; }
@keyframes breathe { 50% { opacity: .55; transform: scale(1.08); } }

.orbit-card {
  position: absolute; top: 50%; translate: 0 -50%; z-index: 3; width: min(29%, 330px); padding: 24px 24px 22px; border-radius: 22px;
  display: grid; gap: 8px; text-decoration: none; color: var(--on-dark);
  background: linear-gradient(160deg, rgba(255, 255, 255, .09), rgba(255, 255, 255, .025)); border: 1px solid rgba(160, 185, 255, .2);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); box-shadow: 0 30px 70px -30px rgba(0, 0, 0, .8);
  transition: border-color .35s, box-shadow .35s var(--ease), background-color .35s;
}
.orbit-card:hover { border-color: rgba(111, 182, 255, .55); box-shadow: 0 34px 80px -28px rgba(10, 108, 255, .55); }
.orbit-card.erp { left: 0; }
.orbit-card.ru { right: 0; }
.orbit-card img { height: clamp(40px, 3.6vw, 50px); width: auto; justify-self: start; margin-bottom: 6px; }
.orbit-card.ru img { height: clamp(30px, 2.8vw, 38px); margin: 6px 0 12px; }
.oc-kind { font: 700 11.5px/1 var(--display); letter-spacing: .18em; text-transform: uppercase; color: #6fb6ff; }
.orbit-card.ru .oc-kind { color: #8fb0ff; }
.oc-line { font-size: 15px; line-height: 1.5; color: #c3d0ee; }
.oc-go { display: inline-flex; align-items: center; gap: 8px; margin-top: 6px; font: 700 14px/1 var(--display); color: #fff; }
.oc-go svg { width: 16px; height: 16px; transition: transform .3s var(--ease); }
.orbit-card:hover .oc-go svg { transform: translateX(4px); }

.orbit-tags { position: absolute; inset: 0; pointer-events: none; }
.orbit-tags li {
  position: absolute; left: var(--x); top: var(--y); translate: -50% -50%; display: inline-flex; align-items: center; gap: 7px; white-space: nowrap;
  padding: 7px 12px; border-radius: 999px; font: 600 12.5px/1 var(--display); color: #c9d6f3;
  background: rgba(8, 18, 46, .75); border: 1px solid var(--line-dark); animation: bob 6s ease-in-out infinite;
}
.orbit-tags li:nth-child(2n) { animation-delay: -2s; }
.orbit-tags li:nth-child(3n) { animation-delay: -4s; }
.orbit-tags li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #3b8bff; box-shadow: 0 0 10px #3b8bff; }
.orbit-tags li.t-ru::before { background: #c9a24a; box-shadow: 0 0 10px #c9a24a; }
@keyframes bob { 50% { transform: translateY(-7px); } }

.scroll-cue { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); display: grid; justify-items: center; gap: 8px; font: 600 11px/1 var(--display); letter-spacing: .2em; text-transform: uppercase; color: #6d80ad; }
.scroll-cue i { width: 1px; height: 36px; background: linear-gradient(#6fb6ff, transparent); animation: cue 2s var(--ease) infinite; transform-origin: top; }
@keyframes cue { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* ---------- Landing: products in two chapters ---------- */
.products-intro { background: var(--ink-950); color: var(--on-dark); padding: clamp(80px, 10vw, 140px) 0 clamp(50px, 6vw, 80px); }
.products-intro .h-lg { max-width: 15ch; }
.chapters { position: relative; background: var(--ink-950); }
.chapter { position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: center; padding: calc(var(--nav-h) + 40px) 0 60px; overflow: hidden; }
.chapter-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.chapter .num { font: 700 13px/1 var(--display); letter-spacing: .18em; text-transform: uppercase; }
.chapter-copy { display: grid; gap: 22px; }
.chapter-copy .plogo { height: clamp(44px, 4.4vw, 60px); width: auto; }
.chapter-copy ul { display: grid; gap: 10px; }
.chapter-copy li { display: flex; gap: 12px; align-items: baseline; }
.chapter-copy li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; flex: none; transform: translateY(-2px); }
.chapter-visual { position: relative; }

.chapter.erp {
  color: var(--on-dark);
  background: radial-gradient(900px 600px at 80% 20%, rgba(10, 108, 255, .3), transparent 60%), radial-gradient(700px 500px at 0% 100%, rgba(12, 194, 166, .16), transparent 60%), var(--ink-900);
}
.chapter.erp .num { color: #6fb6ff; }
.chapter.erp h3 { font-size: clamp(30px, 3.6vw, 50px); }
.chapter.erp p { color: var(--on-dark-muted); }
.chapter.erp li { color: #d3ddf5; }
.chapter.erp li::before { background: var(--grad); }
.chapter.erp .float { position: absolute; width: 46%; right: -6%; bottom: -14%; }
.chapter.erp .chip { position: absolute; left: -5%; top: 12%; }

.chapter.ru { background: var(--ru-paper); color: var(--ru-ink); font-family: var(--plex); }
.chapter.ru h3 { font-family: var(--plex); font-weight: 500; letter-spacing: -.03em; font-size: clamp(34px, 4.2vw, 60px); line-height: 1.04; }
.chapter.ru h3 em { color: var(--ru-blue); font-style: italic; font-weight: 500; }
.chapter.ru .num { color: var(--ru-gold); font-family: var(--mono); letter-spacing: .2em; }
.chapter.ru .ru-eyebrow { font: 500 12.5px/1 var(--mono); letter-spacing: .3em; text-transform: uppercase; color: var(--ru-blue); }
.chapter.ru p { color: #4a5068; }
.chapter.ru .plogo { height: clamp(34px, 3.4vw, 46px); }
.ru-principles { display: grid; gap: 16px; border-top: 1px solid #dfe2ec; padding-top: 20px; }
.ru-principles div { display: grid; grid-template-columns: 34px 1fr; gap: 6px 12px; }
.ru-principles b { font: 500 13px/1.6 var(--mono); color: var(--ru-gold); grid-row: span 2; }
.ru-principles strong { font-weight: 600; font-size: 16px; }
.ru-principles span { font-size: 14.5px; color: #5a6078; line-height: 1.5; }
.chapter.ru .frame { box-shadow: 0 0 0 1px rgba(20, 26, 46, .08), 0 40px 90px -30px rgba(20, 26, 46, .35); }
.btn-ru { background: var(--ru-blue); color: #fff; border-radius: 10px; font-family: var(--plex); font-weight: 600; box-shadow: 0 12px 30px -12px rgba(35, 71, 216, .7); }
.btn-ru:hover { transform: translateY(-2px); }
.seal {
  position: absolute; left: -6%; bottom: -8%; width: clamp(150px, 15vw, 200px); padding: 18px; border-radius: 18px; background: #fff;
  box-shadow: 0 30px 60px -24px rgba(20, 26, 46, .4); display: grid; gap: 10px; font-family: var(--plex);
}
.seal i { width: 40px; height: 40px; border-radius: 50%; border: 1.5px solid var(--ru-blue); display: grid; place-items: center; color: var(--ru-blue); box-shadow: inset 0 0 0 4px #eef1fd; }
.seal i svg { width: 18px; height: 18px; }
.seal b { font: 500 11px/1 var(--mono); letter-spacing: .25em; color: var(--ru-gold); }
.seal span { font-size: 13px; line-height: 1.45; color: #4a5068; }

.chapters.is-pinned { height: 100vh; overflow: hidden; }
.chapters.is-pinned .chapter { position: absolute; inset: 0; min-height: 0; }
.chapters.is-pinned .chapter.ru { z-index: 2; }
.chapter-rail { position: absolute; left: var(--gutter); top: 50%; transform: translateY(-50%); z-index: 5; display: none; gap: 14px; }
.chapter-rail span { display: block; width: 3px; height: 34px; border-radius: 3px; background: rgba(160, 185, 255, .25); overflow: hidden; position: relative; }
.chapter-rail span i { position: absolute; inset: 0; background: var(--grad); transform-origin: top; transform: scaleY(0); }

/* ---------- Landing: belief + principles ---------- */
.belief { background: var(--paper); }
.statement { position: relative; font-family: var(--display); font-weight: 800; letter-spacing: -.03em; line-height: 1.12; font-size: clamp(30px, 4.6vw, 64px); max-width: 20ch; }
.statement .w { display: inline-block; }
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: clamp(56px, 8vw, 100px); }
.principle { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px 32px; display: grid; gap: 14px; align-content: start; overflow: hidden; }
.principle::before { content: ""; position: absolute; inset: 0 0 auto; height: 3px; background: var(--grad); }
.principle .k { font: 700 13px/1 var(--display); color: var(--blue); letter-spacing: .1em; }
.principle h3 { font-size: 23px; letter-spacing: -.02em; }
.principle p { color: var(--muted); font-size: 16px; }
.principle .who { margin-top: 6px; font: 600 13px/1.4 var(--display); color: #7a86a3; }

/* ---------- Contact / closing ---------- */
.closing {
  position: relative; overflow: hidden; color: var(--on-dark); text-align: center;
  background: radial-gradient(900px 500px at 50% 120%, rgba(10, 108, 255, .4), transparent 60%), radial-gradient(600px 400px at 15% 0%, rgba(12, 194, 166, .14), transparent 60%), var(--ink-950);
}
.closing h2 { font-size: clamp(38px, 6vw, 84px); letter-spacing: -.035em; }
.closing .lead { margin: 0 auto; }
.contacts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; max-width: 900px; margin: clamp(40px, 6vw, 60px) auto 0; }
.contact {
  display: grid; gap: 6px; justify-items: center; padding: 24px 18px; border-radius: 18px; text-decoration: none;
  background: rgba(255, 255, 255, .04); border: 1px solid var(--line-dark); transition: background-color .3s, border-color .3s, transform .3s var(--ease);
}
.contact:hover { background: rgba(255, 255, 255, .08); border-color: rgba(111, 182, 255, .45); transform: translateY(-3px); }
.contact svg { width: 22px; height: 22px; color: #6fb6ff; margin-bottom: 4px; }
.contact small { font: 600 12px/1 var(--display); letter-spacing: .12em; text-transform: uppercase; color: var(--on-dark-muted); }
.contact strong { font: 700 17px/1.3 var(--display); overflow-wrap: anywhere; }
.company { margin-top: 36px; font-size: 14.5px; color: var(--on-dark-muted); }

.footer { background: var(--ink-950); color: var(--on-dark-muted); border-top: 1px solid var(--line-dark); padding: 40px 0; font-size: 14.5px; }
.footer .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 18px 32px; }
.footer img { height: 24px; width: auto; }
.footer nav { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.footer a { text-decoration: none; color: #c3d0ee; }
.footer a:hover { color: #fff; }
.footer .copy { margin-left: auto; }

/* =================================================================
   23.5 product page
   ================================================================= */
.product { --nav-h: 64px; }
.product .nav-links > a { font-size: 14.5px; }

.p-hero {
  position: relative; min-height: 100vh; min-height: 100svh; overflow: hidden; color: var(--on-dark); isolation: isolate;
  padding: calc(var(--nav-h) + 48px + clamp(28px, 4vw, 44px)) 0 0;
  background: radial-gradient(1100px 620px at 50% 0%, rgba(10, 108, 255, .3), transparent 62%),
              radial-gradient(700px 500px at 100% 60%, rgba(12, 194, 166, .14), transparent 60%),
              radial-gradient(700px 500px at 0% 70%, rgba(79, 70, 229, .18), transparent 60%), var(--ink-950);
}
.p-hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .45;
  background-image: linear-gradient(rgba(160, 185, 255, .06) 1px, transparent 1px), linear-gradient(90deg, rgba(160, 185, 255, .06) 1px, transparent 1px);
  background-size: 64px 64px; -webkit-mask-image: radial-gradient(ellipse at 50% 20%, #000 15%, transparent 65%); mask-image: radial-gradient(ellipse at 50% 20%, #000 15%, transparent 65%);
}
.p-hero-copy { text-align: center; display: grid; justify-items: center; gap: 18px; max-width: 960px; margin: 0 auto; position: relative; z-index: 2; }
.p-hero-logo { height: clamp(56px, 5.4vw, 74px); width: auto; }
.p-hero h1 { font-size: clamp(38px, 5.4vw, 76px); letter-spacing: -.035em; }
.p-hero h1 .serif { font-size: 1.1em; }
.p-stage { position: relative; max-width: 1180px; margin: clamp(40px, 4vw, 52px) auto 0; padding: 0 var(--gutter); perspective: 2200px; perspective-origin: 50% 0%; }
.p-device { position: relative; z-index: 2; transform-origin: 50% 100%; transform: rotateX(23.5deg); will-change: transform; }
.p-float { position: absolute; z-index: 1; width: 34%; will-change: transform; }
.p-float.f1 { left: -9%; top: -5%; transform: rotate(-4deg); }
.p-float.f2 { right: -9%; top: -9%; transform: rotate(4deg); }
.p-float.f3 { right: -4%; bottom: -2%; width: 26%; z-index: 3; transform: rotate(2deg); }
.p-float .frame-bar { height: 24px; }
.p-float .frame-bar i { width: 7px; height: 7px; }
/* hero dashboard: hotspots and the rolling line appear only while the pinned scene runs */
.shot { position: relative; overflow: hidden; }
.shot > img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; object-position: top left; }
.veil, .hot, .kinetic { display: none; }
.p-hero.is-live .veil, .p-hero.is-live .hot, .p-hero.is-live .kinetic { display: block; }
.veil { position: absolute; inset: 0; opacity: 0; pointer-events: none; background: linear-gradient(180deg, rgba(3, 9, 25, .1) 0%, rgba(3, 9, 25, .55) 30%, rgba(3, 9, 25, .9) 60%, rgba(3, 9, 25, .96) 100%); }
.p-hero.is-live .hot { display: flex; }
.hot { position: absolute; left: var(--x); top: var(--y); translate: -8px -50%; align-items: center; gap: 12px; opacity: 0; z-index: 2; }
.hot.left { flex-direction: row-reverse; translate: calc(-100% + 8px) -50%; }
.hot i { position: relative; width: 16px; height: 16px; border-radius: 50%; flex: none; background: #0a6cff; border: 3px solid #fff; box-shadow: 0 4px 14px rgba(10, 108, 255, .6); }
.hot i::after { content: ""; position: absolute; inset: -9px; border-radius: 50%; border: 2px solid rgba(10, 108, 255, .7); animation: ping 1.8s ease-out infinite; }
@keyframes ping { from { transform: scale(.5); opacity: 1; } to { transform: scale(1.6); opacity: 0; } }
.hot span { padding: 10px 16px; border-radius: 12px; background: rgba(6, 16, 44, .94); color: #fff; font: 700 clamp(13px, 1.05vw, 15px)/1.25 var(--display); white-space: nowrap; box-shadow: 0 16px 36px -12px rgba(6, 16, 44, .6); border: 1px solid rgba(111, 182, 255, .3); }
.kinetic { position: absolute; left: 5%; right: 5%; top: 44%; color: #fff; opacity: 0; z-index: 3; }
.k-pre { display: block; margin-bottom: 14px; font: 700 clamp(13px, 1.2vw, 17px)/1 var(--display); letter-spacing: .2em; text-transform: uppercase; color: #8fb4ff; }
.k-window { display: block; height: 1.12em; overflow: hidden; font: 800 clamp(34px, 5vw, 76px)/1.12 var(--display); letter-spacing: -.035em; }
.k-words { display: block; }
.k-words b { display: block; height: 1.12em; white-space: nowrap; }
.angle {
  position: absolute; left: var(--gutter); bottom: 28px; z-index: 4; display: grid; gap: 2px;
  padding: 14px 18px; border-radius: 16px; background: rgba(6, 16, 44, .82); border: 1px solid var(--line-dark); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.angle b { font: 800 34px/1 var(--display); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.angle b sup { font-size: .5em; color: #6fb6ff; }
.angle > span { font: 600 10.5px/1 var(--display); letter-spacing: .22em; text-transform: uppercase; color: var(--on-dark-muted); }

.p-statement { background: var(--paper); }
.p-statement .statement { max-width: 22ch; }
.p-statement .lead { margin-top: 28px; max-width: 46em; }
.pillars { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: clamp(48px, 7vw, 80px); }
.pillar { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: grid; gap: 12px; align-content: start; }
.pillar svg { width: 30px; height: 30px; color: var(--blue); }
.pillar h3 { font-size: 21px; letter-spacing: -.02em; }
.pillar p { color: var(--muted); font-size: 16px; }

/* Timetable: seven steps, each with its own real screen dealt onto a deck */
.planning { background: linear-gradient(#fff, var(--paper)); }
.tt-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.tt-grid:not(.is-live) { grid-template-columns: minmax(0, 820px); }
.tt-grid:not(.is-live) .tt-visual { display: none; }
.tt-copy { display: grid; gap: 18px; }
.tt-copy h2 { font-size: clamp(34px, 3.8vw, 52px); }
.steps { display: grid; gap: 4px; counter-reset: s; margin: 4px 0 0; padding: 0; list-style: none; }
.step { counter-increment: s; display: grid; grid-template-columns: 32px 1fr; column-gap: 12px; padding: 12px 14px; border-radius: 14px; transition: background-color .4s, box-shadow .4s; }
.step::before { content: counter(s, decimal-leading-zero); grid-row: span 3; font: 700 12.5px/1.75 var(--display); color: var(--indigo); transition: color .4s; }
.step b { font: 700 16.5px/1.4 var(--display); color: var(--text); transition: color .4s; }
.step span { color: var(--muted); font-size: 15px; line-height: 1.55; margin-top: 4px; }
.step-shot { margin-top: 14px; }
.tt-grid.is-live .step-shot { display: none; }
.tt-grid.is-live .step { padding: 9px 14px; }
.tt-grid.is-live .step::before { color: #a3adc6; }
.tt-grid.is-live .step b { color: #8790a8; }
.tt-grid.is-live .step span { max-height: 0; opacity: 0; margin-top: 0; overflow: hidden; transition: max-height .45s var(--ease), opacity .35s, margin-top .35s; }
.tt-grid.is-live .step.is-on { background: #fff; box-shadow: 0 14px 34px -20px rgba(6, 18, 48, .45); padding: 14px; }
.tt-grid.is-live .step.is-on::before { color: var(--indigo); }
.tt-grid.is-live .step.is-on b { color: var(--text); }
.tt-grid.is-live .step.is-on span { max-height: 7em; opacity: 1; margin-top: 4px; }
.tt-visual { position: relative; }
.tt-deck { position: relative; }
.tt-card + .tt-card { position: absolute; left: 0; right: 0; top: 0; }
.tt-card { transform-origin: 50% 0%; will-change: transform, opacity; }
.tt-count { position: absolute; right: 4px; top: -58px; display: flex; align-items: baseline; gap: 6px; font-family: var(--display); }
.tt-count b { font-size: 34px; font-weight: 800; letter-spacing: -.03em; font-variant-numeric: tabular-nums; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.tt-count span { font-size: 15px; font-weight: 700; color: #a3adc6; }
.tt-visual .chip { position: absolute; z-index: 3; }
.tt-visual .chip.c1 { left: -5%; top: 22%; }
.tt-visual .chip.c2 { right: -3%; bottom: -5%; }
.tt-visual .chip svg { width: 16px; height: 16px; color: var(--indigo); }

/* Exams: exploding layers */
.exams { background: var(--ink-900); color: var(--on-dark); overflow: hidden; }
.layers-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.layers-copy { display: grid; gap: 22px; }
.layer-list { display: grid; gap: 10px; margin-top: 8px; }
.layer-item { padding: 16px 18px; border-radius: 14px; border: 1px solid var(--line-dark); background: rgba(255, 255, 255, .03); display: grid; gap: 4px; transition: background-color .4s, border-color .4s, opacity .4s; }
.layer-item strong { font: 700 17px/1.3 var(--display); display: flex; align-items: center; gap: 10px; }
.layer-item strong i { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.layer-item span { color: var(--on-dark-muted); font-size: 15px; line-height: 1.5; }
.layer-item.is-on { background: rgba(255, 255, 255, .07); border-color: rgba(111, 182, 255, .45); }
.stack-stage { position: relative; }
.stack { display: grid; gap: 40px; }
.layer { position: relative; }
.stack-stage.is-live { perspective: 2400px; aspect-ratio: 1.15; }
.is-live .stack { position: absolute; inset: 14% 0 0 14%; display: block; transform-style: preserve-3d; }
.is-live .layer { position: absolute; inset: 0 0 auto; transform-style: preserve-3d; }
.layer .frame { width: 100%; }
.layer .frame-bar { height: 26px; }
.layer .tagline {
  position: absolute; right: 16px; top: -16px; padding: 8px 14px; border-radius: 999px; font: 700 13px/1 var(--display); color: #fff; white-space: nowrap;
  box-shadow: 0 10px 24px -8px rgba(0, 0, 0, .5);
}
.exams-points { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: clamp(48px, 6vw, 72px); }
.exams-points div { padding: 20px; border-radius: 16px; border: 1px solid var(--line-dark); background: rgba(255, 255, 255, .03); display: grid; gap: 6px; }
.exams-points b { font: 700 16px/1.3 var(--display); }
.exams-points span { color: var(--on-dark-muted); font-size: 14.5px; line-height: 1.5; }

/* Records: a pinned three-chapter story */
.records { background: var(--paper); }
.story { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.story-texts { position: relative; display: grid; }
.story-text { display: grid; gap: 18px; align-content: center; }
.story-text + .story-text { margin-top: 72px; }
.story:not(.is-live) { grid-template-columns: minmax(0, 820px); }
.story:not(.is-live) .story-visual { display: none; }
.story.is-live .story-text { grid-area: 1 / 1; margin: 0; }
.story.is-live .story-mobile-shot { display: none; }
.story-mobile-shot { margin: 8px 0 6px; }
.story-text h3 { font-size: clamp(30px, 3.4vw, 46px); }
.story-text .num { font: 700 13px/1 var(--display); letter-spacing: .16em; text-transform: uppercase; }
.story-text ul { display: grid; gap: 10px; }
.story-text li { display: flex; gap: 12px; color: #33405f; font-size: 16px; }
.story-text li::before { content: ""; width: 18px; height: 18px; flex: none; margin-top: 3px; border-radius: 50%; background: var(--c, var(--blue)) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 11px no-repeat; }
.story-visual { position: relative; }
.story-shots { position: relative; }
.story-shots .frame + .frame { position: absolute; inset: 0; }
.story-dots { display: flex; gap: 8px; margin-top: 26px; }
.story-dots span { height: 4px; flex: 1; border-radius: 4px; background: var(--paper-2); overflow: hidden; position: relative; }
.story-dots span i { position: absolute; inset: 0; background: var(--grad); transform-origin: left; transform: scaleX(0); }
.flow { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.flow div { padding: 14px; border-radius: 12px; background: #fff; border: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.flow b { display: block; font: 800 14.5px/1.3 var(--display); color: var(--text); margin-bottom: 2px; }
.flow b em { font-style: normal; color: var(--c, var(--blue)); margin-right: 6px; }

/* Vidya */
.vidya {
  position: relative; overflow: hidden; color: var(--on-dark);
  background: radial-gradient(800px 600px at 85% 30%, rgba(124, 58, 237, .32), transparent 60%), radial-gradient(700px 500px at 10% 90%, rgba(10, 108, 255, .28), transparent 60%), var(--ink-950);
}
.vidya-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.vidya-copy { display: grid; gap: 22px; }
.vidya-copy h2 { font-size: clamp(34px, 4.4vw, 60px); }
.wake { display: inline-flex; align-items: center; gap: 14px; padding: 12px 20px 12px 14px; border-radius: 999px; background: rgba(255, 255, 255, .06); border: 1px solid var(--line-dark); justify-self: start; }
.wake .orb { width: 34px; height: 34px; border-radius: 50%; background: conic-gradient(from 0deg, #0a4bff, #7c3aed, #0cc2a6, #0a4bff); animation: spin 6s linear infinite; box-shadow: 0 0 24px rgba(124, 58, 237, .6); }
.wake .bars { display: flex; gap: 3px; align-items: center; height: 20px; }
.wake .bars i { width: 3px; height: 100%; border-radius: 3px; background: #b7c6ff; animation: bar 1.1s ease-in-out infinite; }
.wake .bars i:nth-child(2) { animation-delay: -.2s; } .wake .bars i:nth-child(3) { animation-delay: -.4s; } .wake .bars i:nth-child(4) { animation-delay: -.6s; } .wake .bars i:nth-child(5) { animation-delay: -.8s; }
@keyframes bar { 0%, 100% { transform: scaleY(.3); } 50% { transform: scaleY(1); } }
.wake span { font: 600 15px/1.2 var(--display); }
.v-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.v-points div { padding: 18px; border-radius: 14px; background: rgba(255, 255, 255, .04); border: 1px solid var(--line-dark); display: grid; gap: 4px; }
.v-points b { font: 700 15.5px/1.3 var(--display); }
.v-points span { color: var(--on-dark-muted); font-size: 14.5px; line-height: 1.5; }
.vidya-visual { position: relative; }
.vidya-visual .halo { position: absolute; inset: -12%; border-radius: 50%; background: radial-gradient(circle, rgba(124, 58, 237, .35), transparent 62%); filter: blur(10px); z-index: -1; }
.vidya-visual .chip { position: absolute; }
.vidya-visual .chip.c1 { left: -5%; bottom: 14%; }
.vidya-visual .chip.c2 { right: -3%; top: 10%; }

/* Apps */
.apps { background: linear-gradient(var(--paper), #fff); }
.app-row { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.app-row + .app-row { margin-top: clamp(80px, 10vw, 140px); }
.app-row.flip { grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); }
.app-row.flip .app-visual { order: 2; }
.app-visual { position: relative; }
.app-visual img { width: 100%; height: auto; filter: drop-shadow(0 40px 50px rgba(6, 18, 48, .28)); }
.app-visual::before { content: ""; position: absolute; inset: 14% 8% 0; border-radius: 40%; background: radial-gradient(circle, rgba(10, 108, 255, .18), transparent 65%); z-index: -1; }
.app-copy { display: grid; gap: 20px; }
.app-copy h3 { font-size: clamp(30px, 3.4vw, 46px); }
.app-copy .note { font: 600 14px/1.4 var(--display); color: #7a86a3; }

/* Modules */
.modules { background: #fff; }
.mod-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.mod { padding: 22px; border-radius: 16px; background: var(--paper); border: 1px solid var(--line); display: grid; gap: 8px; align-content: start; transition: transform .35s var(--ease), box-shadow .35s var(--ease), background-color .35s; }
.mod:hover { transform: translateY(-4px); background: #fff; box-shadow: 0 24px 50px -28px rgba(6, 18, 48, .45); }
.mod i { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; color: #fff; background: var(--c, var(--blue)); }
.mod i svg { width: 19px; height: 19px; }
.mod b { font: 800 17px/1.3 var(--display); letter-spacing: -.01em; }
.mod span { font-size: 14.5px; color: var(--muted); line-height: 1.5; }
.desks { margin-top: clamp(56px, 7vw, 90px); padding: clamp(28px, 4vw, 44px); border-radius: 24px; background: var(--ink-900); color: var(--on-dark); display: grid; gap: 28px; }
.desks h3 { font-size: clamp(24px, 2.6vw, 32px); }
.desk-row { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.desk-line { position: absolute; left: 6%; right: 6%; top: 21px; height: 2px; background: rgba(160, 185, 255, .16); }
.desk-line i { position: absolute; inset: 0; background: var(--grad); transform-origin: left; transform: scaleX(1); }
.desk { position: relative; display: grid; gap: 8px; justify-items: center; text-align: center; }
.desk em { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; font: 800 15px/1 var(--display); font-style: normal; background: var(--ink-700); border: 2px solid #3d63c9; color: #fff; }
.desk b { font: 700 16px/1.3 var(--display); }
.desk span { font-size: 14.5px; color: var(--on-dark-muted); }

/* Add-ons */
.addons { background: var(--paper); }
.addon-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; border-top: 1px solid var(--line); }
.addon { display: grid; grid-template-columns: 54px 1fr; gap: 6px 14px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.addon em { font: 800 15px/1.6 var(--display); font-style: normal; grid-row: span 2; }
.addon b { font: 800 19px/1.3 var(--display); letter-spacing: -.015em; }
.addon span { color: var(--muted); font-size: 15.5px; }
.tagline-band { margin-top: clamp(48px, 6vw, 72px); display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.tagline-band img { height: 56px; width: auto; }
.tagline-band p { font-family: var(--serif); font-style: italic; font-size: clamp(24px, 2.6vw, 34px); color: #2a3657; max-width: 30ch; line-height: 1.25; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .mod-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .exams-points { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 959px) {
  :root { --nav-h: 64px; }
  body { font-size: 16px; }
  .nav-toggle { display: grid; }
  .nav-links {
    position: absolute; left: 0; right: 0; top: 100%; height: calc(100vh - var(--nav-h)); height: calc(100dvh - var(--nav-h)); margin: 0; padding: 20px var(--gutter) 40px; overflow-y: auto; z-index: 3;
    flex-direction: column; align-items: stretch; gap: 4px; background: #040b1e;
    opacity: 0; visibility: hidden; transform: translateY(-10px); transition: opacity .3s, transform .35s var(--ease), visibility .3s;
  }
  .nav.is-open .nav-links { opacity: 1; visibility: visible; transform: none; }
  .nav-links > a, .nav-links > .dd > button { font-size: 18px; padding: 16px 12px; width: 100%; justify-content: space-between; }
  .dd-panel { position: static; width: auto; transform: none; grid-template-columns: 1fr; opacity: 1; visibility: visible; display: none; margin: 4px 0 10px; }
  .dd.is-open .dd-panel { display: grid; transform: none; }
  .nav-cta { margin: 14px 0 0; justify-content: center; min-height: 52px; }
  .product .nav-links .nav-cta { display: inline-flex; }

  .orbit { height: auto; display: grid; gap: 16px; justify-items: center; }
  .orbit-svg, .orbit-tags { display: none; }
  .orbit-core, .orbit-card { position: relative; left: auto; right: auto; top: auto; translate: none; }
  .orbit-core { margin-bottom: 14px; }
  .orbit-card { width: 100%; }
  .scroll-cue { display: none; }

  .chapter { min-height: 0; padding: 90px 0; }
  .chapter-grid, .tt-grid, .layers-grid, .story, .vidya-grid, .app-row, .app-row.flip { grid-template-columns: 1fr; }
  .app-row.flip .app-visual { order: 0; }
  .chapter.erp .float { position: relative; width: 70%; right: auto; bottom: auto; margin: -16% 0 0 auto; }
  .chapter.erp .chip, .tt-visual .chip, .vidya-visual .chip { position: relative; left: auto; right: auto; top: auto; bottom: auto; margin-top: 14px; }
  .seal { position: relative; left: auto; bottom: auto; margin-top: -30px; margin-left: 12px; }
  .principles, .pillars, .contacts { grid-template-columns: 1fr; }
  .mod-grid { grid-template-columns: 1fr 1fr; }
  .addon-list { grid-template-columns: 1fr; }
  .v-points { grid-template-columns: 1fr; }
  .desk-row { grid-template-columns: 1fr 1fr; row-gap: 28px; }
  .desk-line { display: none; }
  .flow { grid-template-columns: 1fr; }

  .p-hero { padding-bottom: 60px; }
  .p-device { transform: rotateX(10deg); }
  .p-float.f1, .p-float.f2 { display: none; }
  .p-float.f3 { width: 44%; right: 0; bottom: -10%; }
  .angle { bottom: 16px; padding: 10px 14px; }
  .angle b { font-size: 24px; }


  .footer .copy { margin-left: 0; }
}
.chapters.is-pinned .chapter-rail { display: grid; }
@media (max-width: 560px) {
  .mod-grid { grid-template-columns: 1fr; }
  .exams-points { grid-template-columns: 1fr; }
  .desk-row { grid-template-columns: 1fr; }
  .btn { width: 100%; justify-content: center; }
  .cta-row { width: 100%; }
  .frame-bar { height: 26px; }
  .frame-bar span { display: none; }
}

/* Reduced motion: no looping decoration, nothing moves on scroll (site.js also stands down). */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .p-device { transform: none !important; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
}

.product section[id] { scroll-margin-top: 112px; }
section[id] { scroll-margin-top: 72px; }

/* Exams: the highlighted screen comes forward flat and full size so it can be read */
.focus { display: none; }
.stack-stage.is-live .focus { display: block; position: absolute; left: 0; right: 0; top: 10%; z-index: 6; pointer-events: none; }
.focus .frame { position: absolute; left: 0; right: 0; top: 0; opacity: 0; box-shadow: 0 0 0 1px rgba(160, 185, 255, .2), 0 60px 120px -30px rgba(0, 0, 0, .85), 0 0 90px -20px rgba(10, 108, 255, .45); }
.focus .tagline { position: absolute; right: 16px; top: -16px; box-shadow: 0 10px 24px -8px rgba(0, 0, 0, .5); padding: 8px 14px; border-radius: 999px; font: 700 13px/1 var(--display); color: #fff; }

/* ---------- Packages: plan cards + comparison matrix ---------- */
.packages {
  color: var(--on-dark);
  background: radial-gradient(900px 500px at 50% 0%, rgba(10, 108, 255, .22), transparent 60%), radial-gradient(700px 500px at 100% 100%, rgba(12, 194, 166, .1), transparent 60%), var(--ink-900);
}
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; align-items: stretch; }
.plan {
  position: relative; display: flex; flex-direction: column; gap: 18px; padding: 30px 28px; border-radius: 24px;
  background: linear-gradient(170deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .02)); border: 1px solid var(--line-dark);
  transition: transform .4s var(--ease), border-color .4s;
}
.plan:hover { transform: translateY(-4px); border-color: rgba(111, 182, 255, .35); }
.plan-top { background: linear-gradient(165deg, rgba(10, 108, 255, .26), rgba(12, 194, 166, .08) 70%); border-color: rgba(111, 182, 255, .45); box-shadow: 0 40px 90px -40px rgba(10, 108, 255, .7); }
.plan-tier { font: 700 11.5px/1 var(--display); letter-spacing: .16em; text-transform: uppercase; color: #6fb6ff; }
.plan-head h3 { font-size: 32px; margin: 10px 0 8px; }
.plan-head p { color: var(--on-dark-muted); font-size: 15px; line-height: 1.55; }
.plan-count { display: flex; align-items: baseline; gap: 10px; padding-top: 18px; border-top: 1px solid var(--line-dark); }
.plan-count b { font: 800 56px/1 var(--display); letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.plan-top .plan-count b { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.plan-count span { color: var(--on-dark-muted); font: 600 14px/1.3 var(--display); }
.plan-meter { height: 6px; border-radius: 6px; background: rgba(255, 255, 255, .08); overflow: hidden; }
.plan-meter i { display: block; height: 100%; width: var(--w); border-radius: 6px; background: var(--grad); transform-origin: left; }
.plan-lead { font: 700 14px/1.4 var(--display); color: #e2e9fb; }
.plan-list { display: grid; gap: 9px; }
.plan-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14.5px; line-height: 1.45; color: #c9d6f3; }
.plan-list li::before { content: ""; flex: none; width: 16px; height: 16px; margin-top: 2px; border-radius: 50%; background: rgba(12, 194, 166, .18) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232dd4bf' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center / 10px no-repeat; }
.plan-list em { font-style: normal; font: 700 12px/1.6 var(--display); color: #6fb6ff; margin-left: 2px; }
.plan .btn { margin-top: auto; align-self: flex-start; }
.plan .btn-line { background: transparent; color: #fff; border-color: rgba(160, 185, 255, .35); }
.plan .btn-line:hover { border-color: #6fb6ff; color: #fff; }

.matrix { margin-top: clamp(56px, 7vw, 88px); border-radius: 24px; border: 1px solid var(--line-dark); background: rgba(255, 255, 255, .02); overflow: clip; }
.matrix-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; padding: 18px 20px; }
.m-search { flex: 1 1 260px; display: flex; align-items: center; gap: 10px; height: 46px; padding: 0 14px; border-radius: 12px; background: rgba(255, 255, 255, .05); border: 1px solid var(--line-dark); color: #8fa3cc; }
.m-search:focus-within { border-color: rgba(111, 182, 255, .6); }
.m-search svg { width: 18px; height: 18px; flex: none; }
.m-search input { flex: 1; min-width: 0; background: none; border: 0; outline: 0; color: #fff; font: 500 15px var(--body); }
.m-search input::placeholder { color: #7488b3; }
.m-toggle { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font: 600 14px/1 var(--display); color: #c9d6f3; user-select: none; position: relative; }
.m-toggle input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.m-toggle span { position: relative; width: 40px; height: 24px; border-radius: 999px; background: rgba(255, 255, 255, .14); transition: background-color .3s; }
.m-toggle span::after { content: ""; position: absolute; left: 3px; top: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; transition: transform .3s var(--ease); }
.m-toggle input:checked + span { background: var(--blue); }
.m-toggle input:checked + span::after { transform: translateX(16px); }
.m-toggle input:focus-visible + span { outline: 2px solid var(--blue-2); outline-offset: 3px; }
.m-expand { margin-left: auto; height: 40px; padding: 0 16px; border-radius: 10px; border: 1px solid var(--line-dark); background: transparent; color: #c9d6f3; font: 600 14px var(--display); cursor: pointer; }
.m-expand:hover { color: #fff; border-color: rgba(111, 182, 255, .5); }
.m-head, .m-group summary, .m-row { display: grid; grid-template-columns: minmax(0, 1fr) repeat(3, 128px); align-items: center; column-gap: 8px; }
.m-head { position: sticky; top: 112px; z-index: 5; padding: 14px 20px; background: #0c1a3d; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); font: 700 12.5px/1.2 var(--display); letter-spacing: .1em; text-transform: uppercase; color: #9fb0d4; }
.m-head span + span { text-align: center; color: #fff; }
.m-head span:last-child { color: #6fd3ff; }
.m-group summary { list-style: none; cursor: pointer; padding: 16px 20px; background: rgba(255, 255, 255, .025); border-top: 1px solid var(--line-dark); transition: background-color .25s; }
.m-group summary::-webkit-details-marker { display: none; }
.m-group summary:hover { background: rgba(255, 255, 255, .05); }
.m-cat { display: flex; align-items: center; gap: 10px; font: 700 15.5px/1.3 var(--display); color: #fff; }
.m-cat::before { content: ""; width: 8px; height: 8px; flex: none; border-right: 2px solid #6fb6ff; border-bottom: 2px solid #6fb6ff; transform: rotate(-45deg); transition: transform .3s var(--ease); }
.m-group[open] .m-cat::before { transform: rotate(45deg); }
.m-cat small { font: 700 11.5px/1 var(--display); padding: 4px 8px; border-radius: 999px; background: rgba(255, 255, 255, .07); color: #9fb0d4; }
.m-frac { text-align: center; font: 700 13px/1 var(--display); font-variant-numeric: tabular-nums; color: #9fb0d4; }
.m-frac.full { color: #2dd4bf; }
.m-frac.none { color: #44557c; }
.m-row { padding: 11px 20px; border-top: 1px solid rgba(160, 185, 255, .07); font-size: 15px; color: #d3ddf5; transition: background-color .2s; }
.m-row:hover { background: rgba(255, 255, 255, .035); }
.m-row > span { padding-left: 18px; }
.m-row i { justify-self: center; }
.m-row i.y { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: rgba(12, 194, 166, .14); color: #2dd4bf; }
.m-row i.y svg { width: 14px; height: 14px; }
.m-row i.n { width: 14px; height: 2px; border-radius: 2px; background: rgba(160, 185, 255, .22); }
.m-row mark { background: rgba(10, 108, 255, .35); color: #fff; border-radius: 3px; padding: 0 2px; }
.matrix.only-diff .m-row:not(.is-diff), .m-row.is-hidden, .m-group.is-hidden { display: none; }
.m-empty { padding: 28px 20px; text-align: center; color: var(--on-dark-muted); }
@media (max-width: 1100px) { .plans { grid-template-columns: 1fr; max-width: 640px; margin: 0 auto; } }
@media (max-width: 700px) {
  .m-head, .m-group summary, .m-row { grid-template-columns: minmax(0, 1fr) repeat(3, 54px); column-gap: 2px; }
  .m-head { font-size: 10.5px; letter-spacing: 0; text-transform: none; padding: 12px 14px; }
  .m-group summary, .m-row { padding-left: 14px; padding-right: 14px; }
  .m-row { font-size: 14px; }
  .m-row > span { padding-left: 0; }
  .m-frac { font-size: 11.5px; }
  .m-expand { margin-left: 0; }
  .plan-count b { font-size: 46px; }
}