/* ==========================================================
   Rook Intelligence — dark theme
   ========================================================== */
:root {
  --bg: #07080a;
  --bg-2: #0c0e11;
  --surface: #111418;
  --surface-2: #161a1f;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #eceef1;
  --text-2: #a3a9b3;
  --text-3: #6b727d;
  --accent: #e5484d;        /* Redwing crimson */
  --accent-soft: rgba(229, 72, 77, 0.14);
  --ok: #3dd68c;
  --warn: #f5b041;

  --font: "Geist", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --serif: "Instrument Serif", Georgia, serif;

  --radius: 14px;
  --wrap: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--accent); color: #fff; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.mono { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; }
em { font-family: var(--serif); font-style: italic; font-weight: 400; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  background: var(--text);
  color: var(--bg);
  font-weight: 550;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s, box-shadow 0.25s;
}
.btn span { transition: transform 0.25s var(--ease); }
.btn:hover { background: #fff; box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.06); }
.btn:hover span { transform: translateX(3px); }
.btn:focus-visible, a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-strong); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.05); box-shadow: none; }
.btn-sm { padding: 0.55rem 1rem; font-size: 0.85rem; }
.btn-block { width: 100%; font-family: var(--font); }

/* ---------- 1. Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(7, 8, 10, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 0.65rem; }
.brand-mark { width: 26px; height: 26px; fill: var(--text); }
.brand-mark path { fill: currentColor; }
.brand { color: var(--text); }
.brand-word { font-weight: 650; letter-spacing: -0.01em; font-size: 1.05rem; }
.brand-word span { color: var(--text-3); font-weight: 400; margin-left: 0.3rem; }
.nav { display: flex; align-items: center; gap: 2rem; }
.nav a:not(.btn) { color: var(--text-2); font-size: 0.92rem; transition: color 0.2s; }
.nav a:not(.btn):hover { color: var(--text); }
.nav-toggle { display: none; }

/* ---------- 2. Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 120px 0 clamp(40px, 5vw, 64px);
  overflow: hidden;
  isolation: isolate;
}
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
.hero-grid {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
  opacity: 0.5;
}
.hero::after {
  content: ""; position: absolute; z-index: -1; pointer-events: none;
  width: 900px; height: 900px; right: -300px; top: -250px;
  background: radial-gradient(circle, rgba(229, 72, 77, 0.13), transparent 60%);
}
.hero-inner {
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(32px, 5vw, 72px); align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.4rem 0.85rem; margin: 0 0 1.75rem;
  border: 1px solid var(--line-strong); border-radius: 999px;
  font-size: 0.82rem; color: var(--text-2);
  background: rgba(255, 255, 255, 0.02);
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 var(--accent); animation: pulse 2.4s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(229, 72, 77, 0.6); }
  70% { box-shadow: 0 0 0 9px rgba(229, 72, 77, 0); }
  100% { box-shadow: 0 0 0 0 rgba(229, 72, 77, 0); }
}
h1 {
  font-size: clamp(2.8rem, 7vw, 5.6rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
  font-weight: 600;
  margin: 0 0 1.5rem;
}
h1 em { color: var(--text-2); letter-spacing: -0.02em; font-size: 1.04em; }
.lede { font-size: clamp(1.05rem, 1.4vw, 1.2rem); color: var(--text-2); max-width: 36rem; margin: 0 0 2.25rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* Dossier panel */
.dossier {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(22, 26, 31, 0.85), rgba(12, 14, 17, 0.85));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  overflow: hidden;
}
.emblem {
  position: relative; padding: clamp(24px, 3.5vw, 40px) clamp(24px, 4vw, 48px) 1.4rem;
  display: grid; justify-items: center; gap: 1rem;
  background: radial-gradient(60% 50% at 50% 45%, rgba(229, 72, 77, 0.12), transparent 70%);
}
.emblem img {
  width: 100%; max-width: 320px; height: auto;
  filter: drop-shadow(0 30px 40px rgba(0, 0, 0, 0.7));
  animation: float 7s ease-in-out infinite;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.emblem-word { margin: 0; color: var(--text-3); letter-spacing: 0.32em; }

/* Proof strip */
.proof {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}
.proof li { padding: 1.4rem 1.25rem 0 0; display: flex; flex-direction: column; gap: 0.2rem; }
.proof li + li { padding-left: 1.25rem; border-left: 1px solid var(--line); }
.proof strong { font-weight: 600; font-size: 1.05rem; letter-spacing: -0.01em; }
.proof span { color: var(--text-3); font-size: 0.85rem; }

/* Organizations strip */
.clients { margin-top: clamp(56px, 8vw, 104px); display: grid; justify-items: center; gap: 1.4rem; text-align: center; }
.clients .marquee { width: 100%; }
.clients .kicker { margin: 0; color: var(--text-2); font-size: clamp(0.8rem, 1.1vw, 0.95rem); letter-spacing: 0.22em; }
.marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track { display: flex; width: max-content; animation: marquee 70s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee ul { display: flex; align-items: center; gap: clamp(3rem, 6vw, 5.5rem); padding: 0.6rem clamp(3rem, 6vw, 5.5rem) 0.6rem 0; margin: 0; list-style: none; }
.marquee li { --h: 40px; flex: none; display: flex; align-items: center; height: clamp(48px, 6vw, 64px); }
.marquee img { height: var(--h); width: auto; opacity: 0.72; transition: opacity 0.3s, transform 0.3s var(--ease); }
.marquee li:hover img { opacity: 1; transform: translateY(-2px); }
.logo-caci { --h: clamp(40px, 4.8vw, 56px) !important; }
.logo-ids { --h: clamp(28px, 3.2vw, 38px) !important; }
.logo-venable { --h: clamp(24px, 2.8vw, 32px) !important; }
.logo-graphika { --h: clamp(26px, 3vw, 34px) !important; }
.logo-snorkl { --h: clamp(42px, 5vw, 56px) !important; }
.logo-primer { --h: clamp(26px, 3vw, 34px) !important; }
.logo-whitehouse { --h: clamp(46px, 5.4vw, 62px) !important; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Rook takes queen (scroll-driven) */
.rank {
  --piece: clamp(72px, 9vw, 118px);
  position: relative; height: var(--piece);
  margin-top: clamp(36px, 5vw, 64px);
}
.rank::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(90deg, rgba(255,255,255,0.03) 0 var(--piece), transparent var(--piece) calc(var(--piece) * 2));
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.piece { position: absolute; bottom: 0; width: var(--piece); height: var(--piece); }
.rook {
  --glow: 0.5;
  position: absolute; left: 0; bottom: 0; width: var(--piece); height: var(--piece);
  z-index: 2; will-change: transform;
}
.piece-rook { left: 0; filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.65)) drop-shadow(0 0 calc(var(--glow) * 18px) rgba(229, 72, 77, 0.45)); }
.rook-glow {
  position: absolute; left: -15%; right: -15%; bottom: calc(var(--piece) * -0.12); height: calc(var(--piece) * 0.3);
  border-radius: 50%;
  background: radial-gradient(ellipse at center, rgba(229, 72, 77, 0.95), rgba(229, 72, 77, 0.35) 45%, transparent 72%);
  filter: blur(8px);
  opacity: var(--glow);
  transform: scaleX(calc(1 + var(--glow) * 0.6));
}
.piece-queen { right: calc(var(--piece) * 1.1); fill: var(--text-3); transform-origin: 78% 90%; transition: fill 0.3s; }
.piece-queen.hit { fill: var(--accent); filter: drop-shadow(0 0 14px rgba(229, 72, 77, 0.55)); }
.rank-trail {
  position: absolute; left: 0; bottom: -1px; height: 3px; width: 100%;
  background: linear-gradient(90deg, transparent, rgba(229, 72, 77, 0.5) 40%, var(--accent));
  box-shadow: 0 0 18px 2px rgba(229, 72, 77, 0.45);
  transform-origin: left; transform: scaleX(0);
  border-radius: 2px;
}
.rank-trail::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: calc(var(--piece) * 0.5);
  background: linear-gradient(0deg, rgba(229, 72, 77, 0.14), transparent);
  mask-image: linear-gradient(90deg, transparent, #000);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000);
}
.rank-impact {
  position: absolute; bottom: calc(var(--piece) * 0.35); width: 16px; height: 16px; margin-left: -8px;
  border-radius: 50%; border: 2px solid var(--accent); opacity: 0; pointer-events: none;
}

/* ---------- Sections ---------- */
.section { padding: clamp(88px, 12vw, 150px) 0; position: relative; }
#capabilities { padding-top: clamp(56px, 7vw, 96px); }
#engagements { padding-bottom: clamp(32px, 4vw, 56px); }
.section-alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 760px; margin-bottom: clamp(48px, 6vw, 72px); }
.kicker { color: var(--accent); margin: 0 0 1rem; }
h2 {
  font-size: clamp(2.1rem, 4.6vw, 3.6rem);
  line-height: 1.04; letter-spacing: -0.035em; font-weight: 600;
  margin: 0 0 1.25rem;
}
h2 em { color: var(--text-2); }
.section-sub { color: var(--text-2); font-size: 1.08rem; max-width: 38rem; margin: 0; }
h3 { font-size: 1.3rem; letter-spacing: -0.02em; font-weight: 600; line-height: 1.25; margin: 0 0 0.75rem; }

/* ---------- 3. Capabilities ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.cap {
  position: relative; background: var(--bg); padding: 2rem 1.6rem 2.2rem;
  transition: background 0.35s;
}
.cap::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity 0.35s;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), rgba(229, 72, 77, 0.1), transparent 60%);
}
.cap:hover { background: var(--surface); }
.cap:hover::before { opacity: 1; }
.cap-icon {
  width: 44px; height: 44px; border-radius: 11px; display: grid; place-items: center;
  border: 1px solid var(--line-strong); background: var(--surface-2); margin-bottom: 1.6rem;
}
.cap-icon svg { width: 22px; height: 22px; fill: none; stroke: var(--text); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.cap:hover .cap-icon svg { stroke: var(--accent); }
.cap-num { position: absolute; top: 2rem; right: 1.6rem; color: var(--text-3); margin: 0; }
.cap > p:not(.cap-num) { color: var(--text-2); font-size: 0.94rem; margin: 0 0 1.4rem; }
.cap ul { list-style: none; margin: 0; padding: 1.2rem 0 0; border-top: 1px solid var(--line); display: grid; gap: 0.55rem; }
.cap li { position: relative; padding-left: 1.1rem; font-size: 0.88rem; color: var(--text-2); }
.cap li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 5px; height: 5px; background: var(--accent); border-radius: 1px; transform: rotate(45deg); }

.models { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1rem; }
.model { padding: 1.6rem; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(180deg, var(--surface), transparent); }
.model .kicker { color: var(--text-3); margin-bottom: 0.6rem; }
.model h4 { margin: 0 0 0.5rem; font-size: 1.08rem; font-weight: 600; letter-spacing: -0.01em; }
.model p:last-child { margin: 0; color: var(--text-2); font-size: 0.92rem; }

/* ---------- 4. Use cases ---------- */
.cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.case {
  padding: 1.8rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg);
  display: flex; flex-direction: column;
  transition: border-color 0.3s, transform 0.4s var(--ease);
}
.case:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.case-meta { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 2.4rem; color: var(--text-3); }
.case-tag { font-size: 0.74rem; padding: 0.25rem 0.65rem; border-radius: 999px; border: 1px solid var(--line-strong); color: var(--text-2); white-space: nowrap; }
.case > p { color: var(--text-2); font-size: 0.93rem; margin: 0; }
.case > p:has(+ .case-link) { margin-bottom: 1.4rem; }
.case-link {
  margin-top: auto; padding-top: 1rem; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 1rem;
  font-size: 0.88rem; color: var(--text); transition: color 0.2s;
}
.case-link + .case-link { margin-top: 0.75rem; padding-top: 0.75rem; }
.case-link span { color: var(--accent); transition: transform 0.25s var(--ease); }
.case-link:hover { color: #fff; }
.case-link:hover span { transform: translate(2px, -2px); }
@property --cta-angle { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
.case-cta {
  grid-column: 1 / -1;
  position: relative; overflow: hidden; isolation: isolate;
  align-items: center; text-align: center;
  padding: clamp(44px, 7vw, 88px) clamp(20px, 4vw, 48px);
  border-color: rgba(229, 72, 77, 0.35);
  background: radial-gradient(ellipse 70% 90% at 50% 0%, rgba(229, 72, 77, 0.24), transparent 65%), var(--bg);
  box-shadow: 0 0 70px -18px rgba(229, 72, 77, 0.55), inset 0 0 90px -30px rgba(229, 72, 77, 0.45);
}
.case-cta::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  border-radius: inherit; padding: 1.5px;
  background: conic-gradient(from var(--cta-angle), transparent 0 55%, rgba(229, 72, 77, 0.2) 65%, var(--accent) 82%, #ffb3b5 86%, transparent 94%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  animation: cta-spin 6s linear infinite;
}
@keyframes cta-spin { to { --cta-angle: 360deg; } }
.case-cta:hover { transform: none; border-color: rgba(229, 72, 77, 0.55); }
.cta-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; opacity: 0.9; }
.cta-inner { position: relative; display: grid; justify-items: center; max-width: 560px; }
.cta-inner .eyebrow { margin-bottom: 1.4rem; }
.case-cta h3 { font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -0.035em; line-height: 1.08; margin-bottom: 0.9rem; }
.cta-inner > p:not(.eyebrow) { color: var(--text-2); font-size: 1.05rem; margin: 0 0 2rem; }
.btn-glow { box-shadow: 0 0 0 1px rgba(229, 72, 77, 0.5), 0 10px 40px -8px rgba(229, 72, 77, 0.7); }
.btn-glow:hover { box-shadow: 0 0 0 6px rgba(229, 72, 77, 0.18), 0 12px 48px -6px rgba(229, 72, 77, 0.85); }

.founder {
  margin-top: clamp(56px, 7vw, 96px);
  display: grid; grid-template-columns: 280px 1fr; gap: clamp(28px, 4vw, 56px); align-items: center;
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--line-strong); border-radius: calc(var(--radius) + 6px);
  background: radial-gradient(600px circle at 0% 0%, rgba(229, 72, 77, 0.08), transparent 60%), var(--surface);
}
.founder-photo {
  position: relative; margin: 0;
  aspect-ratio: 1; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line-strong); background: var(--bg);
}
.founder-photo img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(0.35) contrast(1.05) brightness(0.92);
  transition: filter 0.6s var(--ease), transform 0.8s var(--ease);
}
.founder-photo::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, transparent 55%, rgba(7, 8, 10, 0.85));
}
.founder:hover .founder-photo img { filter: none; transform: scale(1.03); }
.founder-photo figcaption {
  position: absolute; left: 0.9rem; bottom: 0.8rem; z-index: 1;
  display: inline-flex; align-items: center; gap: 0.45rem; color: var(--text-2);
}
.founder-photo figcaption svg { width: 12px; height: 12px; fill: var(--accent); }
.founder-copy h3 { font-size: clamp(1.7rem, 3vw, 2.2rem); letter-spacing: -0.03em; margin-bottom: 1rem; }
.founder-copy > p:not(.kicker) { color: var(--text-2); margin: 0 0 1.6rem; max-width: 46rem; }
.founder-copy > p:not(.kicker) + p { margin-top: -0.8rem; }
.creds { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 2rem; }
.cred-group { padding: 1rem 0; border-top: 1px solid var(--line); display: grid; gap: 0.7rem; align-content: start; }
.creds dt { color: var(--accent); }
.creds dd { margin: 0; display: grid; gap: 0.1rem; font-size: 0.93rem; line-height: 1.4; }
.creds dd strong { font-weight: 550; color: var(--text); }
.creds dd span { color: var(--text-3); font-size: 0.85rem; }
.creds a { display: inline-flex; gap: 0.35rem; align-items: baseline; border-bottom: 1px solid var(--line-strong); justify-self: start; transition: border-color 0.2s, color 0.2s; }
.creds a span { color: var(--text-2); font-size: 0.93rem; }
.creds a:hover { border-color: var(--accent); }

/* ---------- Affiliated brands ---------- */
.affiliates {
  position: relative; overflow: hidden;
  padding: clamp(40px, 6vw, 64px) 0;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(420px 160px at 50% 50%, rgba(56, 189, 248, 0.09), transparent 70%),
    var(--bg);
}
.affiliates::before, .affiliates::after {
  content: ""; position: absolute; top: 50%; height: 1px; width: 22%;
  background: linear-gradient(90deg, transparent, var(--line-strong));
}
.affiliates::before { left: 0; }
.affiliates::after { right: 0; transform: scaleX(-1); }
.affiliates-inner { display: grid; justify-items: center; gap: 1.1rem; text-align: center; }
.affiliates .kicker { margin: 0; color: var(--text-3); letter-spacing: 0.24em; }
.affiliate { display: inline-flex; align-items: center; gap: 1.1rem; }
.affiliate img {
  width: clamp(72px, 8vw, 96px); height: auto;
  filter: drop-shadow(0 0 24px rgba(56, 189, 248, 0.35));
  transition: transform 0.5s var(--ease), filter 0.4s;
}
.affiliate-name { font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 600; letter-spacing: -0.035em; }
.affiliate-name span { color: #38bdf8; }
.affiliate:hover img { transform: translateY(-3px) rotate(-4deg); filter: drop-shadow(0 0 32px rgba(56, 189, 248, 0.55)); }
.affiliate-link { color: var(--text-2); border-bottom: 1px solid var(--line-strong); padding-bottom: 2px; transition: color 0.2s, border-color 0.2s; }
.affiliate-link:hover { color: var(--text); border-color: #38bdf8; }

/* ---------- FAQ ---------- */
.faq { padding-bottom: clamp(56px, 7vw, 96px); }
.faq-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(32px, 6vw, 88px); align-items: start; }
.faq .section-head { position: sticky; top: 110px; margin-bottom: 0; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  display: flex; justify-content: space-between; align-items: center; gap: 1.5rem;
  padding: 1.35rem 0; cursor: pointer; list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary h3 { margin: 0; font-size: clamp(1.02rem, 1.4vw, 1.15rem); font-weight: 550; transition: color 0.2s; }
.faq-item summary:hover h3 { color: #fff; }
.faq-icon { position: relative; flex: none; width: 28px; height: 28px; border: 1px solid var(--line-strong); border-radius: 50%; transition: border-color 0.2s, transform 0.3s var(--ease); }
.faq-icon::before, .faq-icon::after { content: ""; position: absolute; left: 50%; top: 50%; width: 10px; height: 1.5px; background: var(--text-2); transform: translate(-50%, -50%); }
.faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform 0.3s var(--ease); }
.faq-item[open] .faq-icon { border-color: var(--accent); transform: rotate(180deg); }
.faq-item[open] .faq-icon::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq-item[open] .faq-icon::before, .faq-item[open] .faq-icon::after { background: var(--accent); }
.faq-item p { margin: 0 0 1.4rem; max-width: 44rem; color: var(--text-2); font-size: 0.97rem; }
.faq-item summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }

/* ---------- 5. Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(40px, 6vw, 96px); align-items: start; }
.contact-copy { position: sticky; top: 110px; }
.contact-points { list-style: none; margin: 2.4rem 0 0; padding: 0; display: grid; gap: 0; }
.contact-points li { display: flex; gap: 1.1rem; align-items: center; padding: 1rem 0; border-top: 1px solid var(--line); color: var(--text-2); }
.contact-points li:last-child { border-bottom: 1px solid var(--line); }
.contact-points .mono { color: var(--accent); }

.form {
  padding: clamp(22px, 3.5vw, 40px);
  border: 1px solid var(--line-strong); border-radius: calc(var(--radius) + 6px);
  background: var(--surface);
  display: grid; gap: 1.1rem;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.field { display: grid; gap: 0.45rem; }
.field > span { font-size: 0.82rem; color: var(--text-2); }
.field > span em { font-family: var(--font); font-style: normal; color: var(--text-3); }
.field input, .field select, .field textarea {
  width: 100%;
  font: inherit; font-size: 0.95rem; color: var(--text);
  background: var(--bg); border: 1px solid var(--line-strong); border-radius: 10px;
  padding: 0.8rem 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  appearance: none; -webkit-appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none' stroke='%23a3a9b3' stroke-width='1.5'%3E%3Cpath d='M1 1.5l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 0.9rem center; padding-right: 2.2rem;
}
.field select:invalid { color: var(--text-3); }
.field textarea { resize: vertical; min-height: 120px; }
.field input::placeholder, .field textarea::placeholder { color: var(--text-3); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft);
}
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: var(--accent); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.check { display: flex; align-items: center; gap: 0.65rem; font-size: 0.9rem; color: var(--text-2); cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--accent); }
.form-note { margin: 0; min-height: 1.4em; font-size: 0.88rem; color: var(--text-2); text-align: center; }
.form-note.ok { color: var(--ok); }
.form-note.err { color: var(--accent); }

/* ---------- 6. Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 64px 0 28px; background: var(--bg); }
.footer-inner { display: flex; justify-content: space-between; gap: 48px; flex-wrap: wrap; padding-bottom: 48px; }
.footer-brand { max-width: 340px; }
.footer-brand p { color: var(--text-3); font-size: 0.92rem; margin: 1rem 0 0; }
.footer-nav { display: flex; gap: clamp(40px, 8vw, 96px); }
.footer-nav div { display: grid; gap: 0.6rem; align-content: start; }
.footer-nav .mono { color: var(--text-3); margin: 0 0 0.4rem; }
.footer-nav a { color: var(--text-2); font-size: 0.92rem; transition: color 0.2s; }
.footer-nav a:hover { color: var(--text); }
.footer-legal {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding-top: 24px; border-top: 1px solid var(--line);
  color: var(--text-3); font-size: 0.82rem;
}
.footer-legal p { margin: 0; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .cases { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .dossier { max-width: 520px; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-copy { position: static; }
  .faq-grid { grid-template-columns: 1fr; }
  .faq .section-head { position: static; }
  .founder { grid-template-columns: 1fr; }
  .founder-photo { max-width: 280px; }
  .models { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav-toggle {
    display: grid; gap: 6px; place-content: center;
    width: 42px; height: 42px; border-radius: 10px;
    background: transparent; border: 1px solid var(--line-strong); cursor: pointer;
  }
  .nav-toggle span { display: block; width: 18px; height: 1.5px; background: var(--text); transition: transform 0.3s var(--ease); }
  .nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.75px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.75px) rotate(-45deg); }
  .nav {
    position: fixed; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 0.5rem var(--gutter) 1.5rem;
    background: var(--bg); border-bottom: 1px solid var(--line);
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity 0.25s, transform 0.25s var(--ease);
  }
  .nav.open { opacity: 1; transform: none; pointer-events: auto; }
  .nav a:not(.btn) { padding: 0.95rem 0; border-bottom: 1px solid var(--line); font-size: 1rem; }
  .nav .btn { margin-top: 1rem; }
  .proof { grid-template-columns: 1fr 1fr; }
  .proof li:nth-child(3) { border-left: 0; padding-left: 0; }
  .proof li:nth-child(n+3) { border-top: 1px solid var(--line); margin-top: 1.2rem; }
  .cap-grid, .cases { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .creds { grid-template-columns: 1fr; }
  .affiliates::before, .affiliates::after { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; width: auto; }
  .marquee ul { flex-wrap: wrap; row-gap: 0.6rem; }
  .marquee ul[aria-hidden] { display: none; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}