/* Prometheus AI™ — двухтемный стиль: тёмная/оранжевая и светлая/оранжевая */
:root {
  --brand: #ff7a18;
  --brand-strong: #ff6a00;
  --bg: #0b0d10;
  --bg-elev: #13161b;
  --text: #e8edf2;
  --text-muted: #b5c0cf;
  --border: #242a33;
  --shadow: 0 8px 24px rgba(0,0,0,0.35);
}

html[data-theme="light"] {
  --brand: #ff7a18;
  --brand-strong: #ff6a00;
  --bg: #ffffff;
  --bg-elev: #f6f8fa;
  --text: #0f141a;
  --text-muted: #4b5a6a;
  --border: #dfe5ec;
  --shadow: 0 8px 24px rgba(0,0,0,0.08);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.6;
  color: var(--text);
  background: radial-gradient(1200px 800px at 20% -10%, rgba(255,122,24,0.08), transparent 40%),
              radial-gradient(800px 600px at 120% 10%, rgba(255,106,0,0.06), transparent 40%),
              var(--bg);
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
.section { padding: 64px 0; }
.lead { font-size: 1.15rem; color: var(--text-muted); }
.muted { color: var(--text-muted); }
.visually-hidden { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; gap: 16px; padding: 12px 0; }
.brand { display: inline-flex; align-items: baseline; gap: 6px; text-decoration: none; font-weight: 700; color: var(--text); }
.brand-mark { letter-spacing: 0.3px; }
.brand-accent { color: var(--brand); }
.social { margin-left: auto; display: flex; gap: 14px; }
.social a { color: var(--text-muted); text-decoration: none; font-weight: 600; padding: 8px 10px; border-radius: 8px; border: 1px solid transparent; }
.social a:hover { color: var(--text); background: color-mix(in srgb, var(--brand) 10%, transparent); border-color: color-mix(in srgb, var(--brand) 40%, var(--border)); }
.social a[aria-disabled="true"] { opacity: .6; pointer-events: none; }

/* Hero */
.hero { display: grid; grid-template-columns: 1fr; gap: 12px; padding: 64px 0 24px; }
.hero h1 { font-size: clamp(28px, 4vw, 44px); line-height: 1.15; margin: 0 0 4px; }
.lead { max-width: 820px; }

/* Remove button styles (no interactive elements left) */
.btn, .btn.primary, .btn.ghost { display: none; }

/* Remove cards (stripped layout) */
.cards, .card, .icon, .metrics, .contact-grid, .contact-form, .contact-aside, .chat, .chat-messages, .chat-form, .msg { display: none !important; }

/* Minimal page has no cases */

/* Chat */
.chat { display: grid; gap: 10px; }
.chat-messages { height: 360px; overflow: auto; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 16px; padding: 12px; box-shadow: var(--shadow); scroll-behavior: smooth; }
.msg { display: grid; gap: 4px; margin: 8px 0; max-width: 80%; padding: 10px 12px; border-radius: 12px; animation: fadeIn 160ms ease-in; white-space: pre-wrap; word-break: break-word; }
.msg.user { margin-left: auto; background: color-mix(in srgb, var(--brand) 16%, var(--bg-elev)); border: 1px solid color-mix(in srgb, var(--brand) 60%, var(--border)); }
.msg.ai { background: color-mix(in srgb, #3a4451 10%, var(--bg-elev)); border: 1px solid var(--border); }
.msg .role { font-size: 12px; color: var(--text-muted); }
.typing { opacity: 0.7; font-style: italic; }
.chat-form { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.chat-form input[type="text"] { border: 1px solid var(--border); background: var(--bg-elev); color: var(--text); padding: 12px 14px; border-radius: 12px; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 980px) { .contact-grid { grid-template-columns: 1.2fr .8fr; } }
.contact-form .grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 680px) { .contact-form .grid { grid-template-columns: 1fr 1fr; } .contact-form .grid .full { grid-column: 1 / -1; } }
.contact-form input, .contact-form textarea { width: 100%; border: 1px solid var(--border); background: var(--bg-elev); color: var(--text); padding: 12px 14px; border-radius: 12px; }
.contact-form label { display: inline-block; margin-bottom: 6px; color: var(--text-muted); font-weight: 600; }
.status { min-height: 1.2em; color: var(--brand); margin-top: 8px; }
.contact-aside { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 16px; padding: 16px; box-shadow: var(--shadow); }
.contact-aside h3 { margin-top: 0; }
.contact-info a { color: var(--brand); text-decoration: none; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 26px 0; color: var(--text-muted); }

/* Animations */
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* Responsive */
@media (max-width: 720px) {
  .cta { flex-direction: column; align-items: flex-start; }
  .trust { grid-template-columns: 1fr; }
  .msg { max-width: 100%; }
}