/* ── Reset & Base ─────────────────────────────────────────── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0c0c0e;
  --bg-card: rgba(255, 255, 255, 0.025);
  --bg-card-hover: rgba(255, 255, 255, 0.045);
  --border: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(212, 168, 67, 0.25);
  --text: #a8adb5;
  --text-dim: #585e68;
  --text-bright: #e2e5ea;
  --accent: #d4a843;
  --accent-soft: #c49832;
  --green: #5cb88a;
  --amber: #d4a843;
  --muted: #7a7068;
  --gradient-main: linear-gradient(135deg, #c49832, #dbb54e);
  --gradient-subtle: linear-gradient(135deg, rgba(212, 168, 67, 0.08), rgba(196, 152, 50, 0.05));
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "SF Mono", monospace;
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--text-bright);
}

/* ── Utility ──────────────────────────────────────────────── */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--text-bright);
  line-height: 1.25;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 0.95rem;
  color: var(--text-dim);
  max-width: 520px;
  line-height: 1.65;
}

/* ── Background ──────────────────────────────────────────── */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 72px 72px;
}

.bg-glow {
  position: fixed;
  z-index: -1;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
}
.bg-glow--cyan {
  width: 500px;
  height: 500px;
  background: rgba(212, 168, 67, 0.04);
  top: -180px;
  left: -80px;
}
.bg-glow--purple {
  width: 400px;
  height: 400px;
  background: rgba(196, 152, 50, 0.03);
  top: 400px;
  right: -120px;
}

/* ── Navbar ───────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 14px 0;
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(12, 12, 14, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-bright);
}
.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}
.nav-links a {
  font-size: 0.84rem;
  color: var(--text-dim);
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover {
  color: var(--text-bright);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  font-family: var(--font-mono);
  background: var(--gradient-main);
  color: #1a1400;
  transition: opacity var(--transition);
}
.nav-cta:hover {
  opacity: 0.85;
  color: #1a1400;
}

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 0 60px;
}

.hero-content {
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
  margin-bottom: 28px;
}
.hero-badge .dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
}

.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.12;
  color: var(--text-bright);
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 480px;
  margin: 0 auto 36px;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ── Install Box ──────────────────────────────────────────── */
.install-box {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-bright);
  cursor: pointer;
  transition: border-color var(--transition);
  position: relative;
}
.install-box:hover {
  border-color: var(--border-hover);
}
.install-box .prompt {
  color: var(--accent);
  user-select: none;
}
.install-box .copy-icon {
  color: var(--text-dim);
  transition: color var(--transition);
}
.install-box:hover .copy-icon {
  color: var(--accent);
}
.install-box .tooltip {
  position: absolute;
  top: -34px;
  left: 50%;
  transform: translateX(-50%) scale(0.9);
  padding: 3px 10px;
  background: var(--accent);
  color: #1a1400;
  font-size: 0.68rem;
  font-weight: 600;
  border-radius: 5px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}
.install-box .tooltip.show {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  background: var(--gradient-main);
  color: #1a1400;
  font-weight: 700;
  font-size: 0.88rem;
  transition: opacity var(--transition);
}
.btn-primary:hover {
  opacity: 0.85;
  color: #1a1400;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-weight: 500;
  font-size: 0.88rem;
  transition: border-color var(--transition), color var(--transition);
}
.btn-secondary:hover {
  border-color: var(--border-hover);
  color: var(--text-bright);
}

/* ── How It Works ─────────────────────────────────────────── */
.how-it-works {
  padding: 80px 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.step-card {
  padding: 28px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color var(--transition);
}
.step-card:hover {
  border-color: var(--border-hover);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(212, 168, 67, 0.08);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.86rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.step-code {
  margin-top: 14px;
  padding: 8px 12px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.25);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent);
  word-break: break-all;
}

/* ── Tools Section ────────────────────────────────────────── */
.tools-section {
  padding: 80px 0;
}

.tools-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.tool-count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid var(--border);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}

.tool-card {
  padding: 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color var(--transition);
  cursor: default;
}
.tool-card:hover {
  border-color: var(--border-hover);
}

.tool-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.tool-icon--terminal { background: rgba(212, 168, 67, 0.08); color: var(--accent); }
.tool-icon--file { background: rgba(160, 140, 110, 0.08); color: var(--muted); }
.tool-icon--system { background: rgba(92, 184, 138, 0.08); color: var(--green); }

.tool-card h4 {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.tool-card p {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.55;
}

/* ── Use Cases ────────────────────────────────────────────── */
.use-cases {
  padding: 80px 0;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.case-card {
  padding: 28px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color var(--transition);
}
.case-card:hover {
  border-color: var(--border-hover);
}

.case-badge {
  display: inline-flex;
  padding: 3px 10px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.case-badge--dev { background: rgba(212, 168, 67, 0.08); color: var(--accent); }
.case-badge--ops { background: rgba(92, 184, 138, 0.08); color: var(--green); }
.case-badge--data { background: rgba(160, 140, 110, 0.08); color: var(--muted); }
.case-badge--auto { background: rgba(212, 168, 67, 0.06); color: var(--accent-soft); }

.case-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 8px;
}

.case-card > p {
  font-size: 0.86rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 16px;
}

.case-prompt {
  padding: 12px 14px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.03);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--text);
}
.case-prompt .label {
  font-size: 0.62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.case-prompt .user-msg {
  color: var(--text-bright);
}
.case-prompt .tool-call {
  color: var(--accent-soft);
  opacity: 0.7;
}

/* ── Architecture ─────────────────────────────────────────── */
.architecture {
  padding: 80px 0;
}

.arch-diagram {
  margin-top: 40px;
  padding: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.arch-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.arch-node {
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  text-align: center;
  min-width: 150px;
}
.arch-node--client {
  background: rgba(160, 140, 110, 0.06);
  border: 1px solid rgba(160, 140, 110, 0.12);
}
.arch-node--server {
  background: rgba(212, 168, 67, 0.06);
  border: 1px solid rgba(212, 168, 67, 0.12);
}
.arch-node--machine {
  background: rgba(92, 184, 138, 0.06);
  border: 1px solid rgba(92, 184, 138, 0.12);
}

.arch-node .arch-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}
.arch-node--client .arch-label { color: var(--muted); }
.arch-node--server .arch-label { color: var(--accent); }
.arch-node--machine .arch-label { color: var(--green); }

.arch-node .arch-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-bright);
}

.arch-node .arch-detail {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 2px;
}

.arch-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 16px;
  color: var(--text-dim);
}
.arch-arrow svg {
  width: 40px;
  height: 14px;
}
.arch-arrow span {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  margin-top: 3px;
  white-space: nowrap;
}

/* ── Quick Start ──────────────────────────────────────────── */
.quickstart {
  padding: 80px 0;
}

.qs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  margin-top: 40px;
  align-items: start;
}

.qs-code-block {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.3);
  overflow: hidden;
}

.qs-code-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
}

.qs-code-body {
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.9;
  overflow-x: auto;
}

.qs-code-body .comment { color: var(--text-dim); }
.qs-code-body .key { color: var(--accent); }
.qs-code-body .value { color: var(--green); }
.qs-code-body .string { color: var(--accent-soft); }

.qs-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.qs-feature {
  display: flex;
  gap: 14px;
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color var(--transition);
}
.qs-feature:hover {
  border-color: var(--border-hover);
}

.qs-feature-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(212, 168, 67, 0.06);
}

.qs-feature h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 2px;
}

.qs-feature p {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.55;
}

/* ── CTA Section ──────────────────────────────────────────── */
.cta-section {
  padding: 80px 0 100px;
  text-align: center;
}

.cta-box {
  max-width: 540px;
  margin: 0 auto;
  padding: 48px 40px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.cta-box h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-bright);
  margin-bottom: 10px;
}

.cta-box p {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-bottom: 28px;
}

.cta-install {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  margin: 0 auto;
  max-width: 360px;
}
.cta-install .prompt { color: var(--accent); }
.cta-install .cmd { color: var(--text-bright); }

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}
.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-left {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-dim);
}
.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
}
.footer-links a {
  font-size: 0.8rem;
  color: var(--text-dim);
}
.footer-links a:hover {
  color: var(--text-bright);
}

/* ── Scroll Reveal ────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .steps-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
  }
  .cases-grid {
    grid-template-columns: 1fr;
  }
  .qs-grid {
    grid-template-columns: 1fr;
  }
  .arch-flow {
    flex-direction: column;
    gap: 6px;
  }
  .arch-arrow {
    transform: rotate(90deg);
    padding: 6px 0;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }
  .hero h1 {
    font-size: 1.8rem;
  }
  .hero-actions {
    flex-direction: column;
  }
  .install-box {
    font-size: 0.76rem;
  }
  .tools-grid {
    grid-template-columns: 1fr;
  }
  .cta-box {
    padding: 32px 20px;
  }
  .arch-diagram {
    padding: 20px;
  }
}