/* acpbot.app — dark metallic brand system from logo mark */

:root {
  --bg: #05070c;
  --bg-elevated: #0b1018;
  --bg-card: #0e1420;
  --border: rgba(120, 170, 220, 0.14);
  --border-strong: rgba(100, 180, 255, 0.28);
  --text: #e8eef7;
  --text-dim: #8b9bb0;
  --gold: #d4b896;
  --gold-bright: #e8d0a8;
  --gold-deep: #a8895c;
  --cyan: #3ec8e8;
  --cyan-deep: #1a7a9a;
  --purple: #7a4a9a;
  --red: #a83848;
  --navy: #121a28;
  --radius: 0;
  --font: "Inter", system-ui, -apple-system, sans-serif;
  --display: "Orbitron", "Inter", system-ui, sans-serif;
  --max: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; min-height: 100vh; font-family: var(--font); font-size: 16px;
  line-height: 1.6; color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--cyan); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--gold-bright); }
code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em; color: var(--gold-bright);
  background: rgba(212, 184, 150, 0.08); padding: 0.12em 0.4em; border-radius: 0;
}

.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(62, 200, 232, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 200, 232, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, black, transparent);
}
.bg-glow {
  position: fixed; border-radius: 50%; filter: blur(100px);
  pointer-events: none; z-index: 0; opacity: 0.35;
}
.bg-glow-a {
  width: 520px; height: 520px; top: -120px; left: 50%; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(62, 200, 232, 0.25), transparent 70%);
}
.bg-glow-b {
  width: 400px; height: 400px; bottom: 10%; right: -80px;
  background: radial-gradient(circle, rgba(122, 74, 154, 0.2), transparent 70%);
}
.nav, main, .footer { position: relative; z-index: 1; }

.nav {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max); margin: 0 auto; padding: 1.25rem 1.5rem;
}
.nav-brand {
  display: flex; align-items: center; gap: 0.65rem; color: var(--text);
  font-family: var(--display); font-weight: 700; font-size: 1.05rem;
  letter-spacing: 0.04em; text-transform: lowercase;
}
.nav-brand img {
  width: 36px; height: 36px; object-fit: contain;
  filter: drop-shadow(0 0 12px rgba(62, 200, 232, 0.35));
}
.nav-links { display: flex; align-items: center; gap: 1.25rem; }
.nav-links a:not(.btn) { color: var(--text-dim); font-size: 0.9rem; font-weight: 500; }
.nav-links a:not(.btn):hover { color: var(--text); }
@media (max-width: 720px) { .nav-links a:not(.btn) { display: none; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  padding: 0.85rem 1.5rem; border-radius: 0; font-weight: 600; font-size: 0.95rem;
  border: 1px solid transparent; cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-sm { padding: 0.45rem 0.95rem; font-size: 0.85rem; }
.btn-gold {
  color: #1a140c;
  background: linear-gradient(165deg, var(--gold-bright), var(--gold) 45%, var(--gold-deep));
  box-shadow: 0 0 0 1px rgba(232, 208, 168, 0.25), 0 8px 28px rgba(168, 137, 92, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.btn-gold:hover {
  color: #120e08;
  box-shadow: 0 0 0 1px rgba(232, 208, 168, 0.4), 0 12px 36px rgba(168, 137, 92, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.4);
}
.btn-ghost {
  color: var(--text); background: rgba(14, 20, 32, 0.7);
  border-color: var(--border-strong); backdrop-filter: blur(8px);
}
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }

.hero {
  max-width: var(--max); margin: 0 auto; padding: 2rem 1.5rem 5rem;
  text-align: center; position: relative;
}
.speed-lines {
  position: absolute; left: 50%; top: 42%; width: min(720px, 92vw);
  transform: translate(-50%, -50%); pointer-events: none; z-index: 0; opacity: 0.55;
}
.line { display: block; height: 3px; margin: 10px auto; border-radius: 0; max-width: 100%; }
.line-cyan {
  width: 88%;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  box-shadow: 0 0 16px rgba(62, 200, 232, 0.5);
}
.line-purple {
  width: 78%;
  background: linear-gradient(90deg, transparent, var(--purple), transparent);
  box-shadow: 0 0 14px rgba(122, 74, 154, 0.45);
}
.line-red {
  width: 68%;
  background: linear-gradient(90deg, transparent, var(--red), transparent);
  box-shadow: 0 0 12px rgba(168, 56, 72, 0.4);
}
.hero-logo-wrap {
  position: relative; z-index: 1; display: flex; justify-content: center;
  margin: 0.5rem auto 1.75rem;
}
.hero-logo {
  width: min(560px, 88vw); height: auto;
  filter: drop-shadow(0 20px 50px rgba(0, 0, 0, 0.65)) drop-shadow(0 0 40px rgba(62, 200, 232, 0.15));
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.eyebrow {
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--cyan); margin: 0 0 0.75rem;
}
.hero h1 {
  font-family: var(--display); font-weight: 800;
  font-size: clamp(2.2rem, 5.5vw, 3.6rem); line-height: 1.1;
  letter-spacing: 0.02em; margin: 0 0 1.25rem; text-transform: lowercase;
}
.hero h1 .gold {
  background: linear-gradient(165deg, #f0e0c0, var(--gold) 40%, var(--gold-deep));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede {
  max-width: 36rem; margin: 0 auto 2rem; color: var(--text-dim); font-size: 1.1rem;
}
.lede strong { color: var(--gold-bright); font-weight: 600; }
.lede em { font-style: normal; color: var(--text); }
.hero-cta {
  display: flex; flex-wrap: wrap; gap: 0.85rem; justify-content: center; margin-bottom: 2rem;
}
.hero-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center; }
.chip {
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.04em; color: var(--text-dim);
  padding: 0.35rem 0.85rem; border-radius: 0; border: 1px solid var(--border);
  background: rgba(14, 20, 32, 0.8);
}

.section { max-width: var(--max); margin: 0 auto; padding: 4.5rem 1.5rem; }
.section-alt { position: relative; }
.section-alt::before {
  content: ""; position: absolute; inset: 0 -100vw; z-index: -1;
  background: linear-gradient(180deg, transparent, rgba(14, 20, 32, 0.65) 10%, rgba(14, 20, 32, 0.65) 90%, transparent);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.section-head { text-align: center; max-width: 36rem; margin: 0 auto 3rem; }
.section-head h2 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem); letter-spacing: 0.02em;
  margin: 0 0 0.75rem; text-transform: lowercase;
}
.section-sub { color: var(--text-dim); margin: 0; }

.feature-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.1rem;
}
.card {
  background: linear-gradient(160deg, rgba(18, 26, 40, 0.95), rgba(10, 14, 22, 0.98));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.5rem 1.4rem; box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.card-icon {
  width: 2.25rem; height: 2.25rem; display: grid; place-items: center;
  border-radius: 0; margin-bottom: 1rem; font-size: 1rem; color: var(--cyan);
  background: rgba(62, 200, 232, 0.1); border: 1px solid rgba(62, 200, 232, 0.2);
}
.card h3 {
  font-family: var(--display); font-size: 1rem; font-weight: 700;
  letter-spacing: 0.03em; margin: 0 0 0.5rem; text-transform: lowercase;
}
.card p { margin: 0; color: var(--text-dim); font-size: 0.95rem; }

.arch {
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 2rem; align-items: center;
}
@media (max-width: 800px) { .arch { grid-template-columns: 1fr; } }
.arch-diagram {
  margin: 0; padding: 1.5rem 1.35rem; border-radius: var(--radius);
  background: #080c14; border: 1px solid var(--border-strong);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4), 0 20px 50px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(62, 200, 232, 0.08);
  overflow-x: auto;
}
.arch-diagram code {
  background: none; padding: 0; color: #9ec8e0; font-size: 0.82rem;
  line-height: 1.65; white-space: pre;
}
.arch-points { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 1.1rem; }
.arch-points li {
  color: var(--text-dim); padding-left: 1rem; border-left: 3px solid var(--cyan-deep);
}
.arch-points strong {
  color: var(--gold-bright); display: block; margin-bottom: 0.2rem;
  font-family: var(--display); font-size: 0.85rem; letter-spacing: 0.04em; text-transform: lowercase;
}

.agent-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem;
}
.agent-card {
  padding: 1.35rem; border-radius: var(--radius); background: var(--bg-card);
  border: 1px solid var(--border); text-align: center;
}
.agent-card h3 {
  font-family: var(--display); font-size: 1rem; margin: 0 0 0.4rem;
  letter-spacing: 0.03em; text-transform: lowercase;
}
.agent-card p { margin: 0 0 0.75rem; color: var(--text-dim); font-size: 0.88rem; }
.agent-card code { font-size: 0.78rem; }
.tag {
  display: inline-block; font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.04em; text-transform: uppercase; color: var(--cyan); opacity: 0.9;
}

.install {
  display: grid; grid-template-columns: 1.4fr 0.8fr; gap: 2rem; align-items: start;
}
@media (max-width: 800px) { .install { grid-template-columns: 1fr; } }
.steps { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 1.5rem; }
.steps li { display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: start; }
.step-num {
  width: 2rem; height: 2rem; display: grid; place-items: center; border-radius: 0;
  font-family: var(--display); font-size: 0.85rem; font-weight: 700; color: #0a0e14;
  background: linear-gradient(165deg, var(--cyan), var(--cyan-deep));
  box-shadow: 0 0 20px rgba(62, 200, 232, 0.3);
}
.steps h3 {
  font-family: var(--display); font-size: 0.95rem; margin: 0.15rem 0 0.35rem;
  letter-spacing: 0.03em; text-transform: lowercase;
}
.steps p { margin: 0; color: var(--text-dim); font-size: 0.95rem; }
.code-block {
  margin: 0.75rem 0 0; padding: 1rem 1.1rem; border-radius: 0;
  background: #080c14; border: 1px solid var(--border); overflow-x: auto;
}
.code-block code {
  background: none; padding: 0; color: #b8d4e8; font-size: 0.85rem;
  line-height: 1.7; white-space: pre;
}
.install-note {
  padding: 1.5rem; border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(18, 26, 40, 0.9), rgba(10, 12, 18, 0.95));
  border: 1px solid var(--border-strong);
}
.install-note p { margin: 0 0 0.75rem; color: var(--text-dim); font-size: 0.92rem; }
.install-note p:last-child { margin-bottom: 0; }

.cta-final { padding-bottom: 5rem; }
.cta-panel {
  text-align: center; padding: 3rem 1.5rem;
  border-radius: 0; border: 1px solid var(--border-strong);
  background:
    radial-gradient(ellipse 80% 80% at 50% 0%, rgba(62, 200, 232, 0.12), transparent 55%),
    linear-gradient(180deg, #101824, #080c12);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}
.cta-logo {
  width: 160px; margin: 0 auto 1.25rem;
  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.5));
}
.cta-panel h2 {
  font-family: var(--display); font-size: clamp(1.35rem, 3vw, 1.85rem);
  margin: 0 0 0.5rem; letter-spacing: 0.02em; text-transform: lowercase;
}
.cta-panel p { color: var(--text-dim); margin: 0 0 1.5rem; }

.footer { border-top: 1px solid var(--border); padding: 1.75rem 1.5rem 2.5rem; }
.footer-inner {
  max-width: var(--max); margin: 0 auto; display: flex; flex-wrap: wrap;
  align-items: center; justify-content: center; gap: 0.5rem 0.65rem;
  color: var(--text-dim); font-size: 0.85rem;
}
.footer-brand {
  font-family: var(--display); font-weight: 700; color: var(--gold); letter-spacing: 0.04em;
}
.footer-sep { opacity: 0.4; }
.footer a { color: var(--text-dim); }
.footer a:hover { color: var(--cyan); }
.footer-credit {
  max-width: var(--max);
  margin: 0.85rem auto 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  opacity: 0.9;
}

/* ── Docs page (docs.html) ───────────────────────────────────────────────── */

.nav-current {
  color: var(--text) !important;
  font-weight: 600;
}
.docs-main {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 4rem;
}
.docs-hero {
  text-align: left;
  margin-bottom: 1.75rem;
}
.docs-hero h1 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.85rem, 4vw, 2.4rem);
  letter-spacing: 0.02em;
  margin: 0 0 0.75rem;
  text-transform: lowercase;
}
.docs-lede {
  margin: 0;
  max-width: none;
  text-align: left;
  font-size: 1.05rem;
}
.docs-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.85rem;
  padding: 0.85rem 0;
  margin-bottom: 2rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 2;
  background: rgba(5, 7, 12, 0.92);
  backdrop-filter: blur(10px);
}
.docs-toc a {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}
.docs-toc a:hover { color: var(--cyan); }
.docs-article { display: flex; flex-direction: column; gap: 2.5rem; }
.docs-section h2 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.03em;
  text-transform: lowercase;
  margin: 0 0 0.85rem;
  color: var(--gold-bright);
}
.docs-section p {
  margin: 0 0 0.85rem;
  color: var(--text-dim);
  font-size: 0.98rem;
}
.docs-section p:last-child { margin-bottom: 0; }
.docs-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-dim);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.docs-list li::marker { color: var(--cyan); }
.docs-note {
  margin-top: 1rem !important;
  padding: 0.9rem 1rem;
  border-radius: 0;
  border: 1px solid var(--border);
  background: rgba(14, 20, 32, 0.85);
  font-size: 0.92rem !important;
}
.docs-note strong { color: var(--gold-bright); }
.docs-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}
@media (min-width: 560px) {
  .docs-links { grid-template-columns: 1fr 1fr; }
}
.docs-link-card {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 1.1rem;
  border-radius: 0;
  border: 1px solid var(--border);
  background: linear-gradient(160deg, rgba(18, 26, 40, 0.95), rgba(10, 14, 22, 0.98));
  color: var(--text-dim);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.docs-link-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
  color: var(--text-dim);
}
.docs-link-card strong {
  color: var(--text);
  font-family: var(--display);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  text-transform: lowercase;
}
.docs-link-card span { font-size: 0.85rem; }
.docs-section .code-block { margin-top: 0.5rem; margin-bottom: 0.75rem; }

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