/* STS CORA demo — CustomGPT.ai sales prop (visual parity with sts.org) */
:root {
  --navy: #13284B;
  --navy-mid: #1A2E5C;
  --crimson: #9B1C1C;
  --crimson-dark: #80170E;
  --text: #111827;
  --muted: #6b7280;
  --bg: #f5f6f8;
  --card: #fff;
  --border: #d1d5db;
  --brand: #80170E;
  --brand-dark: #13284B;
  --accent: #9B1C1C;
  --font: "Inter", "Segoe UI", system-ui, sans-serif;
  --radius: 6px;
  --shadow: 0 8px 24px rgba(19, 40, 75, 0.08);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); color: var(--text); background: #fff; line-height: 1.55; }
a { color: var(--navy-mid); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(1140px, calc(100% - 2.5rem)); margin: 0 auto; }

.demo-banner {
  background: linear-gradient(90deg, #7a00df, #80170E);
  color: #fff; text-align: center; font-size: 0.78rem; padding: 0.4rem 1rem; font-weight: 600;
  position: sticky; top: 0; z-index: 100;
}

.utility-bar {
  background: #fff; border-bottom: 1px solid var(--border); font-size: 0.72rem; padding: 0.55rem 0;
}
.utility-bar .container {
  display: flex; align-items: center; gap: 0.85rem; flex-wrap: wrap; justify-content: space-between;
}
.util-links { display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; align-items: center; }
.util-links a {
  color: #374151; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
  text-decoration: none; font-size: 0.7rem;
}
.util-links a:hover { color: var(--crimson); }
.util-links a.cora { color: var(--crimson); }

.demo-hsearch { position: relative; min-width: 180px; max-width: 240px; flex: 0 1 240px; }
.demo-hsearch form { position: relative; margin: 0; }
.demo-hsearch input {
  width: 100%; padding: 0.45rem 2.3rem 0.45rem 0.75rem; border-radius: 999px;
  border: 1px solid var(--border); background: #fff; color: var(--navy); font-size: 0.82rem; font-family: var(--font);
}
.demo-hsearch input:focus { outline: 2px solid rgba(155,28,28,0.3); border-color: var(--crimson); }
.demo-hsearch .ai-tag {
  position: absolute; right: 2.1rem; top: 50%; transform: translateY(-50%);
  font-size: 0.58rem; font-weight: 800; color: var(--crimson); pointer-events: none;
}
.demo-hsearch .go {
  position: absolute; right: 3px; top: 3px; bottom: 3px; width: 28px; border: none; border-radius: 50%;
  background: var(--navy); color: #fff; cursor: pointer; font-size: 0.85rem;
}
.demo-searchdrop {
  display: none; position: absolute; top: calc(100% + 10px); right: 0; left: auto;
  min-width: min(520px, 92vw); background: #fff; color: var(--text);
  border: 1px solid var(--border); border-radius: 10px; box-shadow: 0 18px 40px rgba(0,0,0,0.18); z-index: 60; overflow: hidden;
}
.demo-searchdrop .sd-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 0.7rem 0.9rem; border-bottom: 1px solid var(--border); background: #f5f6f8;
}
.demo-searchdrop .sd-head .lab { color: var(--crimson); letter-spacing: 0.05em; text-transform: uppercase; font-size: 0.72rem; font-weight: 800; }
.demo-searchdrop .sd-close { border: none; background: #e5e7eb; width: 28px; height: 28px; border-radius: 50%; cursor: pointer; font-size: 1.1rem; }
#customgpt_search { width: 100%; min-height: 160px; padding: 4px; }

.site-header {
  background: linear-gradient(90deg, var(--navy) 0%, var(--navy-mid) 60%, #1e3a6e 100%);
  border-bottom: 3px solid var(--crimson);
  position: sticky; top: 28px; z-index: 40;
}
.site-header .container {
  display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; padding: 0.85rem 0;
}
.logo-mark {
  display: flex; align-items: center; gap: 0.75rem; text-decoration: none !important; color: #fff; white-space: nowrap;
}
.seal {
  width: 52px; height: 52px; border-radius: 50%;
  background: radial-gradient(circle at 40% 35%, #fff 0 28%, #9B1C1C 29% 55%, #13284B 56% 100%);
  border: 2px solid rgba(255,255,255,0.85); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 0.55rem; font-weight: 800; color: #fff;
  box-shadow: inset 0 0 0 6px rgba(155,28,28,0.35);
}
.logo-text { font-size: 1.05rem; font-weight: 800; line-height: 1.2; max-width: 12rem; }

.nav { display: flex; align-items: center; gap: 0.2rem 1.2rem; flex-wrap: wrap; margin-left: auto; }
.nav a { color: #fff; font-weight: 600; font-size: 0.9rem; text-decoration: none; }
.nav a:hover, .nav a.active { color: #fca5a5; text-decoration: underline; }
.nav .btn {
  background: var(--crimson); color: #fff !important; padding: 0.45rem 0.9rem; border-radius: 4px; text-decoration: none !important;
}
.nav-toggle {
  display: none; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25);
  color: #fff; border-radius: 4px; padding: 0.4rem 0.7rem; font-weight: 700;
}

.hero { background: #fff; padding: 2.5rem 0 2rem; }
.hero .container {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 2rem; align-items: start;
}
.video-box {
  border: 1px solid var(--border); border-radius: 4px; background: #f3f4f6;
  aspect-ratio: 16/10; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0.75rem; padding: 1.5rem; text-align: center; color: var(--muted);
}
.video-box .play {
  width: 56px; height: 56px; border-radius: 50%; background: var(--navy); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 1.25rem;
}
.video-box strong { color: var(--navy); font-size: 0.95rem; }
.hero-copy h1 {
  margin: 0 0 0.85rem; font-size: clamp(1.55rem, 2.8vw, 2.1rem); color: var(--navy);
  font-weight: 800; line-height: 1.25;
}
.hero-copy p { margin: 0 0 1.25rem; color: var(--muted); font-size: 1rem; }
.hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.btn-primary, .btn-secondary, .btn-try {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.7rem 1.2rem; border-radius: 4px; font-weight: 700; text-decoration: none !important; font-size: 0.92rem;
}
.btn-primary { background: var(--navy); color: #fff !important; }
.btn-primary:hover { background: var(--navy-mid); }
.btn-secondary { background: transparent; color: var(--navy) !important; border: 1.5px solid var(--navy); }
.btn-try { background: var(--crimson) !important; color: #fff !important; box-shadow: 0 6px 18px rgba(155,28,28,0.25); }
.btn-try:hover { filter: brightness(1.08); }

.section { padding: 2.75rem 0; }
.section.alt { background: var(--bg); }
.section-head { margin-bottom: 1.5rem; }
.section-head h2 { margin: 0; font-size: 1.55rem; color: var(--navy); font-weight: 800; }
.section-head p { margin: 0.4rem 0 0; color: var(--muted); max-width: 38rem; }
.eyebrow { color: var(--crimson); font-size: 0.75rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; margin: 0 0 0.35rem; }

.grid { display: grid; gap: 1.25rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(19,40,75,0.12); transition: 0.15s; }
.card-accent { height: 4px; background: linear-gradient(90deg, var(--navy), var(--crimson)); }
.card-body { padding: 1.15rem; display: flex; flex-direction: column; gap: 0.4rem; flex: 1; }
.card-body .tag {
  align-self: flex-start; background: rgba(155,28,28,0.1); color: var(--crimson-dark);
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 0.2rem 0.5rem; border-radius: 3px;
}
.card-body h3 { margin: 0; font-size: 1.05rem; color: var(--navy); }
.card-body p { margin: 0; color: var(--muted); font-size: 0.92rem; flex: 1; }

.cta-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.85rem; }
.cta-pill {
  display: block; text-align: center; font-weight: 700; background: #fff; border: 1.5px solid var(--border);
  border-radius: 6px; padding: 1rem 0.75rem; color: var(--navy); text-decoration: none !important; box-shadow: var(--shadow);
}
.cta-pill:hover { border-color: var(--crimson); color: var(--crimson); }

.cta-band {
  background: linear-gradient(120deg, var(--navy), var(--crimson-dark));
  color: #fff; border-radius: 10px; padding: 2rem 2.25rem;
  display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; flex-wrap: wrap;
}
.cta-band h2 { margin: 0 0 0.4rem; font-size: 1.45rem; }
.cta-band p { margin: 0; color: #d1d5db; max-width: 34rem; }

.site-footer { background: var(--navy); color: #b7c3d4; padding: 2.5rem 0 1.5rem; margin-top: 1rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 1.5rem; margin-bottom: 1.75rem; }
.site-footer h4 { color: #fff; margin: 0 0 0.7rem; font-size: 0.92rem; }
.site-footer a { color: #c9d6e8; display: block; margin-bottom: 0.35rem; font-size: 0.9rem; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-note { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 1rem; font-size: 0.8rem; color: #8fa0b5; }
.footer-note strong { color: #d5deea; }

.assistant-page { margin: 0; min-height: 100vh; display: flex; flex-direction: column; background: #f5f7fa; }
.assistant-page .assistant-frame { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.assistant-page #customgpt_chat { flex: 1; min-height: calc(100vh - 96px); width: 100%; }
.assistant-bar { background: #fff; border-bottom: 1px solid var(--border); padding: 0.65rem 0; }
.assistant-bar .container { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.assistant-bar a.back { font-weight: 700; color: var(--crimson); text-decoration: none; }
.assistant-bar strong { color: var(--navy); }

@media (max-width: 960px) {
  .hero .container, .grid-3, .footer-grid, .cta-strip { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-toggle { display: inline-block; }
  .nav { display: none; width: 100%; flex-direction: column; align-items: flex-start; margin-left: 0; }
  .nav.open { display: flex; }
  .hero .container, .grid-3, .footer-grid, .cta-strip { grid-template-columns: 1fr; }
  .utility-bar .container { flex-direction: column; align-items: stretch; }
  .demo-hsearch { max-width: none; flex: 1 1 100%; }
  .site-header { top: 0; }
}