/* ────────────────────────────────────────────────────────────────────────────
   DesignTech AI — shared chrome for the logged-out marketing pages.

   Brand tokens + the shared nav (with mobile hamburger), footer, buttons, and
   type, factored out of Partner.html so the standalone pages (request-demo.html,
   trust.html, privacy.html) carry one consistent bar/footer without duplicating
   the whole stylesheet. Served verbatim at /landing/home/site.css. US English only.
   ──────────────────────────────────────────────────────────────────────────── */

@property --gradient-angle { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
@keyframes gradient-spin { to { --gradient-angle: 360deg; } }
@keyframes shimmer { to { background-position: 200% center; } }

:root {
  --navy: #060c22;
  --ink: #f4f7ff;
  --muted: hsl(215 22% 72%);
  --muted-dim: hsl(215 18% 58%);
  --card: hsl(226 50% 11% / 0.66);
  --card-solid: hsl(226 52% 10%);
  --edge: hsl(210 40% 98% / 0.09);
  --edge-strong: hsl(210 40% 98% / 0.16);
  --accent: hsl(199 89% 56%);
  --grad: linear-gradient(100deg, #22d3ee, #3b82f6, #8b5cf6, #d946ef, #8b5cf6, #3b82f6, #22d3ee);
  --grad-conic: conic-gradient(from var(--gradient-angle), #06b6d4, #3b82f6, #8b5cf6, #d946ef, #8b5cf6, #3b82f6, #06b6d4);
  --font-body: "Poppins", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-heading: "Roboto Slab", ui-serif, Georgia, serif;
  --maxw: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--navy);
  background-image:
    radial-gradient(115% 80% at 50% -12%, rgba(101, 65, 206, 0.20), transparent 64%),
    radial-gradient(60% 50% at 92% 8%, rgba(6, 182, 212, 0.10), transparent 70%),
    radial-gradient(70% 60% at 4% 38%, rgba(217, 70, 239, 0.08), transparent 72%);
  background-attachment: fixed;
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.msym {
  font-family: "Material Symbols Outlined";
  font-weight: normal; font-style: normal;
  line-height: 1; text-transform: none; white-space: nowrap; direction: ltr;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: hsl(199 80% 78%);
  padding: 7px 14px; border-radius: 999px;
  background: hsl(210 80% 60% / 0.10); border: 1px solid hsl(210 70% 70% / 0.22);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px hsl(199 89% 56% / .18); }
h1, h2, h3 { font-family: var(--font-heading); font-weight: 700; letter-spacing: -.01em; line-height: 1.1; margin: 0; }
h1 { font-size: clamp(34px, 5vw, 56px); }
h2 { font-size: clamp(24px, 3.4vw, 36px); }
.grad-text {
  background: var(--grad); background-size: 200% auto;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shimmer 7s linear infinite;
}

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; gap: 9px; font: inherit; font-weight: 600; cursor: pointer; border: 0; border-radius: 999px; padding: 14px 26px; font-size: 15px; text-decoration: none; transition: transform .14s ease, box-shadow .18s ease, background .18s ease; white-space: nowrap; }
.btn-primary { color: #04121f; background: #fff; box-shadow: 0 10px 34px rgba(0,0,0,.34); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 44px rgba(56,130,246,.32); }
.btn-grad { color: #fff; background: linear-gradient(100deg, #3b82f6, #8b5cf6 55%, #d946ef); box-shadow: 0 12px 40px rgba(124,58,237,.36); }
.btn-grad:hover { transform: translateY(-2px); box-shadow: 0 18px 52px rgba(124,58,237,.5); }
.btn-ghost { color: var(--ink); background: hsl(210 40% 98% / .06); border: 1px solid var(--edge-strong); }
.btn-ghost:hover { background: hsl(210 40% 98% / .12); transform: translateY(-2px); }
.btn .ic { font-size: 18px; line-height: 1; }

/* ── Top nav (sticky, centered group) + mobile hamburger ── */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); background: hsl(226 55% 7% / .72); border-bottom: 1px solid var(--edge); }
.nav-inner { display: flex; align-items: center; justify-content: flex-start; flex-wrap: wrap; gap: 10px 26px; height: 64px; padding: 0 24px; }
.nav-brand { display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-heading); font-weight: 700; font-size: 18px; text-decoration: none; color: var(--ink); }
.nav-brand img { width: 26px; height: 26px; display: block; }
.nav-links { display: flex; align-items: center; gap: 6px; margin: 0 auto; }
.nav-links a { text-decoration: none; font-size: 14.5px; font-weight: 600; color: var(--muted); padding: 8px 16px; border-radius: 999px; transition: color .15s ease, background .15s ease; }
.nav-links a:hover { color: var(--ink); background: hsl(210 40% 98% / .06); }
.nav-links a.active { color: var(--ink); background: hsl(210 40% 98% / .08); }
.nav-cta { padding: 9px 18px; font-size: 14px; }
.nav-toggle { display: none; margin-left: auto; width: 42px; height: 42px; flex: none; align-items: center; justify-content: center; border-radius: 11px; background: hsl(210 40% 98% / .06); border: 1px solid var(--edge-strong); color: var(--ink); cursor: pointer; }
.nav-toggle .msym { font-size: 24px; }
.nav-toggle .ic-close { display: none; }
.nav.is-open .nav-toggle .ic-open { display: none; }
.nav.is-open .nav-toggle .ic-close { display: inline; }
@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .nav-inner { height: auto; gap: 10px 14px; padding: 12px 18px; }
  .nav-links { display: none; order: 3; flex-basis: 100%; flex-direction: column; align-items: stretch; gap: 4px; margin: 4px 0 0; }
  .nav.is-open .nav-links { display: flex; }
  .nav-links a { padding: 12px 14px; font-size: 15.5px; }
  .nav-cta { display: none; order: 4; width: 100%; justify-content: center; }
  .nav.is-open .nav-cta { display: inline-flex; }
}

/* ── Footer ── */
footer { border-top: 1px solid var(--edge); padding: 34px 0; margin-top: clamp(56px, 8vw, 96px); }
.foot { display: flex; align-items: center; justify-content: space-between; gap: 12px 18px; flex-wrap: wrap; color: var(--muted-dim); font-size: 13px; }
.foot a { color: var(--muted); text-decoration: none; }
.foot a:hover { color: var(--ink); }
.foot .brand { font-family: var(--font-heading); font-weight: 700; color: hsl(214 24% 84%); }
.foot .foot-links { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; }

@media (prefers-reduced-motion: reduce) {
  .grad-text { animation: none; }
  html { scroll-behavior: auto; }
}