/* AIM Impulse — static landing page
   Single dark theme by design; the brand lives in the dark. */

/* Self-hosted fonts (latin subsets, from Google Fonts 2026-09-22) — no third-party requests. */
@font-face { font-family: "Inter"; font-style: normal; font-weight: 400 600; font-display: swap;
  src: url("../assets/fonts/inter-latin.woff2") format("woff2"); }
@font-face { font-family: "Space Grotesk"; font-style: normal; font-weight: 500 700; font-display: swap;
  src: url("../assets/fonts/space-grotesk-latin.woff2") format("woff2"); }
@font-face { font-family: "Instrument Serif"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("../assets/fonts/instrument-serif-latin.woff2") format("woff2"); }
@font-face { font-family: "Instrument Serif"; font-style: italic; font-weight: 400; font-display: swap;
  src: url("../assets/fonts/instrument-serif-italic-latin.woff2") format("woff2"); }

:root {
  --bg: #070a14;
  --bg-2: #0b1020;
  --bg-3: #111a2e;
  --ink: #e8ecf6;
  --ink-2: #aab4c8;
  --ink-3: #6f7b94;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.16);
  --sky: #7dd3fc;
  --violet: #a78bfa;
  --teal: #2dd4bf;
  --amber: #fbbf24;
  --grad: linear-gradient(120deg, var(--sky), var(--violet));
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --radius: 20px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --nav-h: 72px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1, h2, h3 { margin: 0; font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
p { margin: 0; }
::selection { background: rgba(125, 211, 252, 0.35); }

.container { width: min(1180px, 100% - 48px); margin-inline: auto; }
.container.narrow { width: min(820px, 100% - 48px); }
@media (max-width: 640px) { .container, .container.narrow { width: calc(100% - 32px); } }

.section { padding-block: clamp(80px, 12vw, 150px); position: relative; }
.kicker {
  font-family: var(--font-display);
  font-size: 12px; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--sky); margin-bottom: 18px;
}
.h2 { font-size: clamp(32px, 4.6vw, 56px); margin-bottom: 22px; }
.body { color: var(--ink-2); font-size: clamp(16px, 1.25vw, 18px); max-width: 60ch; }
.body-lg { color: var(--ink-2); font-size: clamp(18px, 1.6vw, 22px); line-height: 1.55; max-width: 62ch; }
.body.small { font-size: 14px; color: var(--ink-3); }
.body + .body { margin-top: 14px; }
.section-head { margin-bottom: clamp(40px, 6vw, 72px); }
.section-head .body { margin-top: 4px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 22px; border-radius: 999px;
  font-family: var(--font-display); font-weight: 700; font-size: 15px; letter-spacing: 0.01em;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .35s var(--ease), border-color .35s;
  white-space: nowrap;
}
.btn-primary {
  color: #061021;
  background: var(--grad);
  box-shadow: 0 10px 30px -10px rgba(125, 211, 252, 0.6);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -12px rgba(167, 139, 250, 0.7); }
.btn-ghost {
  border: 1px solid var(--line-2);
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.35); background: rgba(255,255,255,0.07); transform: translateY(-2px); }
.btn-block { width: 100%; justify-content: center; }

/* ---------- decorations ---------- */
.cursor-glow {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 30%), rgba(125, 211, 252, 0.08), transparent 45%);
  transition: background .2s;
}
.progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 60; pointer-events: none; }
.progress span { display: block; height: 100%; width: 0; background: var(--grad); transition: width .1s linear; }
.pulse {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--teal); box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.7);
  animation: pulse 2s infinite; vertical-align: middle; margin-right: 8px;
}
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(45,212,191,.7) } 70% { box-shadow: 0 0 0 10px rgba(45,212,191,0) } 100% { box-shadow: 0 0 0 0 rgba(45,212,191,0) } }

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.cards .reveal:nth-child(2), .steps .reveal:nth-child(2) { transition-delay: .12s; }
.cards .reveal:nth-child(3), .steps .reveal:nth-child(3) { transition-delay: .24s; }
.grid-principles .reveal:nth-child(2n) { transition-delay: .1s; }
.grid-principles .reveal:nth-child(3n) { transition-delay: .2s; }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: var(--nav-h);
  display: flex; align-items: center; gap: 32px;
  padding-inline: clamp(20px, 4vw, 48px);
  transition: background .4s, border-color .4s, backdrop-filter .4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled { background: rgba(7, 10, 20, 0.72); backdrop-filter: blur(14px); border-color: var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.logo-mark {
  display: inline-block; width: 54px; aspect-ratio: 1.847; flex: none;
  background: var(--grad);
  -webkit-mask: url(../assets/logo-mark.png) center / contain no-repeat;
          mask: url(../assets/logo-mark.png) center / contain no-repeat;
  transition: filter .3s;
}
.brand:hover .logo-mark { filter: brightness(1.15); }
.brand-word { font-family: var(--font-display); font-weight: 500; font-size: 17px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-2); padding-top: 2px; }
.footer-brand .logo-mark { width: 64px; }
.nav-links { display: flex; gap: 28px; margin-left: auto; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--ink-2); position: relative; padding-block: 6px; }
.nav-links a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 1px; background: var(--sky); transition: right .3s var(--ease); }
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { right: 0; }
.nav-cta { padding: 10px 18px; font-size: 14px; }
.nav-toggle { display: none; width: 40px; height: 40px; flex-direction: column; justify-content: center; gap: 6px; margin-left: auto; }
.nav-toggle span { display: block; height: 2px; width: 22px; background: var(--ink); margin-inline: auto; transition: transform .3s, opacity .3s; }
.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
.mobile-menu {
  position: fixed; inset: var(--nav-h) 0 auto 0; z-index: 49;
  background: rgba(7, 10, 20, 0.96); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 4px; padding: 16px 24px 24px;
}
.mobile-menu a { padding: 12px 4px; font-size: 18px; font-family: var(--font-display); font-weight: 500; }
.mobile-menu .btn { margin-top: 10px; justify-content: center; }
@media (max-width: 860px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
}

/* ---------- hero ---------- */
.hero {
  position: relative; min-height: 100svh; display: grid; place-items: center;
  overflow: hidden; padding-top: var(--nav-h);
}
.hero-video, .hero-canvas, .hero-veil { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-video { object-fit: cover; filter: saturate(1.1); }
.hero-veil {
  background:
    radial-gradient(1200px 600px at 50% 110%, rgba(7,10,20,0.1), rgba(7,10,20,0.85)),
    linear-gradient(180deg, rgba(7,10,20,0.35), rgba(7,10,20,0.6));
}
.hero-canvas { mix-blend-mode: screen; opacity: .9; }
.hero-inner { position: relative; z-index: 2; text-align: center; width: min(960px, 100% - 48px); padding-block: 80px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2);
  border: 1px solid var(--line-2); padding: 8px 16px 8px 12px; border-radius: 999px;
  background: rgba(255,255,255,0.03); backdrop-filter: blur(8px);
  margin-bottom: 32px;
}
.display { font-size: clamp(42px, 8vw, 104px); line-height: 0.98; letter-spacing: -0.035em; }
.display .line { display: block; }
.display em { font-family: var(--font-serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em;
  background: linear-gradient(120deg, #fff, var(--sky) 45%, var(--violet)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { color: var(--ink-2); font-size: clamp(17px, 1.7vw, 21px); max-width: 58ch; margin: 32px auto 0; line-height: 1.55; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 40px; }
.hero-scroll { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); width: 22px; height: 36px; border: 1px solid var(--line-2); border-radius: 12px; z-index: 2; }
.hero-scroll span { position: absolute; left: 50%; top: 7px; width: 3px; height: 8px; margin-left: -1.5px; border-radius: 2px; background: var(--sky); animation: scrollhint 1.8s infinite; }
@keyframes scrollhint { 0% { transform: translateY(0); opacity: 1 } 80% { transform: translateY(12px); opacity: 0 } 100% { opacity: 0 } }
.hero-inner .reveal:nth-child(2) { transition-delay: .1s; }
.hero-inner .reveal:nth-child(3) { transition-delay: .25s; }
.hero-inner .reveal:nth-child(4) { transition-delay: .4s; }

/* ---------- ticker ---------- */
.ticker { border-block: 1px solid var(--line); overflow: hidden; background: var(--bg-2); padding-block: 14px; position: relative; z-index: 1; }
.ticker-track { display: flex; gap: 36px; width: max-content; animation: ticker 38s linear infinite; font-family: var(--font-display); font-size: 14px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-2); }
.ticker-track i { font-style: normal; color: var(--violet); }
@keyframes ticker { to { transform: translateX(-50%); } }

/* ---------- manifesto ---------- */
.manifesto { background: var(--bg); }
.manifesto .h2 { font-size: clamp(28px, 3.8vw, 46px); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 56px; padding-top: 40px; border-top: 1px solid var(--line); }
.stat strong { display: block; font-family: var(--font-display); font-size: clamp(34px, 4.5vw, 56px); line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { display: block; margin-top: 8px; font-size: 13px; color: var(--ink-3); letter-spacing: 0.04em; text-transform: uppercase; }
@media (max-width: 720px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ---------- ventures ---------- */
.ventures { background: linear-gradient(180deg, var(--bg), var(--bg-2)); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 960px) { .cards { grid-template-columns: 1fr; } }
.card {
  position: relative; padding: 32px 28px 28px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.015));
  overflow: hidden; transform-style: preserve-3d;
  transition: border-color .4s, transform .5s var(--ease), box-shadow .5s var(--ease);
}
.card:hover { border-color: var(--line-2); box-shadow: 0 30px 60px -30px rgba(0,0,0,0.8); }
.card::before {
  content: attr(data-tag); position: absolute; top: 20px; right: 20px;
  font-family: var(--font-display); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 5px 10px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--ink-2);
}
.card-glow { position: absolute; inset: -1px; pointer-events: none; opacity: 0; transition: opacity .4s;
  background: radial-gradient(400px circle at var(--gx, 50%) var(--gy, 0%), rgba(125,211,252,0.18), transparent 60%); }
.card:hover .card-glow { opacity: 1; }
.card-icon { color: var(--sky); margin-bottom: 22px; }
.card h3 { font-size: 28px; margin-bottom: 8px; }
.card-sub { color: var(--ink); font-weight: 500; margin-bottom: 14px; }
.card > p:not(.card-sub) { color: var(--ink-2); font-size: 15px; }
.card-list { list-style: none; margin: 20px 0 24px; padding: 0; display: grid; gap: 8px; font-size: 14px; color: var(--ink-2); }
.card-list li { padding-left: 18px; position: relative; }
.card-list li::before { content: ""; position: absolute; left: 0; top: 9px; width: 8px; height: 8px; border-radius: 50%; background: var(--grad); }
.card-link { font-family: var(--font-display); font-weight: 700; font-size: 14px; color: var(--sky); display: inline-flex; gap: 6px; align-items: center; }
.card-link span { transition: transform .3s var(--ease); }
.card-link:hover span { transform: translateX(4px); }

/* ---------- film ---------- */
.film { background: var(--bg-2); overflow: hidden; }
.film-bg, .place-bg { position: absolute; inset: 0; z-index: 0; }
.bg-video { width: 100%; height: 100%; object-fit: cover; opacity: .35; }
.film-bg::after, .place-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11,16,32,0.96) 30%, rgba(11,16,32,0.55)); }
.film-inner, .place-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
@media (max-width: 900px) { .film-inner, .place-inner { grid-template-columns: 1fr; } }
.film-copy .btn { margin-top: 28px; }
.film-poster {
  position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16 / 10; width: 100%;
  border: 1px solid var(--line-2); padding: 0; box-shadow: 0 40px 80px -40px rgba(0,0,0,0.9);
  transition: transform .5s var(--ease);
}
.film-poster:hover { transform: scale(1.02); }
.film-poster img { width: 100%; height: 100%; object-fit: cover; }
.film-poster .play {
  position: absolute; inset: 0; margin: auto; width: 84px; height: 84px; border-radius: 50%;
  display: grid; place-items: center; background: rgba(255,255,255,0.9); color: #061021;
  box-shadow: 0 20px 50px -10px rgba(0,0,0,0.6); transition: transform .4s var(--ease);
}
.film-poster:hover .play { transform: scale(1.08); }
.film-len { position: absolute; right: 16px; bottom: 14px; font-family: var(--font-display); font-size: 13px; padding: 4px 10px; border-radius: 999px; background: rgba(0,0,0,0.5); backdrop-filter: blur(6px); }

/* ---------- approach ---------- */
.approach { background: var(--bg); }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: step; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding: 36px 28px 32px; border-top: 1px solid var(--line-2); }
.step::before { content: ""; position: absolute; top: -1px; left: 0; width: 0; height: 1px; background: var(--grad); transition: width 1.2s var(--ease) .2s; }
.step.in::before { width: 100%; }
.step-num { font-family: var(--font-serif); font-style: italic; font-size: 44px; color: var(--violet); line-height: 1; display: block; margin-bottom: 20px; }
.step h3 { font-size: 22px; margin-bottom: 12px; }
.step p { color: var(--ink-2); font-size: 15px; }

/* ---------- principles ---------- */
.principles { background: var(--bg-2); }
.grid-principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
@media (max-width: 900px) { .grid-principles { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .grid-principles { grid-template-columns: 1fr; } }
.principle { background: var(--bg-2); padding: 32px 28px; transition: background .4s; }
.principle:hover { background: var(--bg-3); }
.principle h3 { font-size: 18px; margin-bottom: 10px; }
.principle p { color: var(--ink-2); font-size: 15px; }

/* ---------- place ---------- */
.place { background: var(--bg-2); overflow: hidden; }
.place-bg::after { background: linear-gradient(90deg, rgba(11,16,32,0.97) 35%, rgba(11,16,32,0.6)); }
.place-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 36px; }
@media (max-width: 600px) { .place-facts { grid-template-columns: 1fr; } }
.place-facts strong { display: block; font-family: var(--font-display); font-size: 17px; }
.place-facts span { display: block; font-size: 13px; color: var(--ink-3); margin-top: 2px; }
.place-card {
  border: 1px solid var(--line-2); border-radius: var(--radius); padding: 28px;
  background: rgba(7,10,20,0.6); backdrop-filter: blur(14px); max-width: 380px; justify-self: end;
}
@media (max-width: 900px) { .place-card { justify-self: start; } }
.place-card-top { font-family: var(--font-display); font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 18px; display: flex; align-items: center; }
.place-card address { font-style: normal; font-size: 18px; line-height: 1.5; margin-bottom: 20px; }

/* ---------- founder ---------- */
.founder { background: var(--bg); }
.founder-inner { display: grid; grid-template-columns: 260px 1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
@media (max-width: 760px) { .founder-inner { grid-template-columns: 1fr; } }
.founder-portrait { position: relative; width: 220px; aspect-ratio: 1; display: grid; place-items: center; }
.portrait-ring { position: absolute; inset: 0; border-radius: 50%; background: conic-gradient(from 0deg, var(--sky), var(--violet), var(--teal), var(--sky)); animation: spin 14s linear infinite; }
.portrait-ring::after { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: var(--bg-3); }
@keyframes spin { to { transform: rotate(360deg); } }
.portrait-initials { position: relative; font-family: var(--font-serif); font-style: italic; font-size: 72px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.founder-links { margin-top: 28px; }

/* ---------- contact ---------- */
.contact { background: linear-gradient(180deg, var(--bg-2), var(--bg)); }
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: start; }
@media (max-width: 860px) { .contact-inner { grid-template-columns: 1fr; } }
.contact-copy a { color: var(--sky); }
.contact-form { border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; background: rgba(255,255,255,0.025); display: grid; gap: 18px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 13px; font-weight: 500; color: var(--ink-2); letter-spacing: 0.02em; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 14px; border-radius: 12px; border: 1px solid var(--line-2);
  background: rgba(7,10,20,0.6); color: var(--ink); font: inherit; outline: none;
  transition: border-color .3s, box-shadow .3s;
}
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink-2) 50%), linear-gradient(135deg, var(--ink-2) 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%; background-size: 6px 6px; background-repeat: no-repeat; }
.field select option { background: var(--bg-3); }
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--sky); box-shadow: 0 0 0 4px rgba(125,211,252,0.15); }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; }
.form-status { font-size: 14px; color: var(--ink-2); min-height: 1.4em; }
.form-status.ok { color: var(--teal); }
.form-status.err { color: var(--amber); }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding-block: 40px; background: var(--bg); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 24px 48px; align-items: center; justify-content: space-between; }
.footer-tag { font-family: var(--font-serif); font-style: italic; color: var(--ink-3); font-size: 18px; margin-top: 4px; }
.footer-links { display: flex; gap: 22px; font-size: 14px; color: var(--ink-2); }
.footer-links a:hover { color: var(--ink); }
.footer-legal { font-size: 13px; color: var(--ink-3); width: 100%; }

/* ---------- modal ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 24px; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(3,5,12,0.85); backdrop-filter: blur(10px); }
.modal-body { position: relative; width: min(1000px, 100%); }
.modal-body video { width: 100%; border-radius: 16px; border: 1px solid var(--line-2); background: #000; box-shadow: 0 50px 100px -40px rgba(0,0,0,1); }
.modal-close { position: absolute; top: -48px; right: 0; font-size: 32px; line-height: 1; width: 40px; height: 40px; color: var(--ink-2); }
.modal-close:hover { color: var(--ink); }
.modal-caption { margin-top: 14px; font-size: 13px; color: var(--ink-3); text-align: center; }

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .ticker-track, .portrait-ring, .hero-scroll span, .pulse { animation: none; }
  .hero-canvas { display: none; }
  .card, .btn { transition: none; }
}