/* Corveil Marketing — Design Tokens */
:root {
  --bg-deep: #121416;
  --bg-surface: #1A1D20;
  --bg-card: #22262A;
  --border-subtle: rgba(221, 196, 130, 0.12);
  --border-strong: rgba(221, 196, 130, 0.25);
  --gold: #DDC482;
  --gold-dark: #B38E46;
  --gold-glow: rgba(221, 196, 130, 0.15);
  --gold-glow-strong: rgba(221, 196, 130, 0.3);
  --grey-geo: #2C3136;
  --primary: #B38E46;
  --primary-light: #DDC482;
  --text-primary: #FFFFFF;
  --text-secondary: #A8A9AE;
  --text-muted: #6B6D72;
  --radius: 0.5rem;
  --font-display: 'Cormorant Garamond', 'Georgia', serif;
  --font-body: 'Montserrat', system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
}

/* Grain overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 200px;
}

a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

/* ─── Layout ─── */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ─── Navbar ─── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(18, 20, 22, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.navbar-brand img {
  width: 40px;
  height: 40px;
  border-radius: 4px;
}

.navbar-brand span {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--text-primary);
  text-transform: uppercase;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover { transform: translateY(-1px); text-decoration: none; }

.btn-primary {
  background: var(--primary);
  color: var(--bg-deep);
  box-shadow: 0 0 24px rgba(179, 142, 70, 0.2);
}
.btn-primary:hover {
  background: var(--primary-light);
  box-shadow: 0 0 32px rgba(179, 142, 70, 0.35);
}

.btn-cyan {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--bg-deep);
  box-shadow: 0 0 24px rgba(221, 196, 130, 0.2);
}
.btn-cyan:hover {
  box-shadow: 0 0 36px rgba(221, 196, 130, 0.4);
  background: linear-gradient(135deg, var(--gold), #C9A552);
}

.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1.5px solid var(--gold-dark);
}
.btn-outline:hover {
  background: var(--gold-glow);
  border-color: var(--gold);
}

/* ─── Hero ─── */
.hero {
  padding: 7rem 0 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Brandmark behind hero */
.hero-brandmark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 640px;
  height: auto;
  opacity: 0.04;
  pointer-events: none;
  user-select: none;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 5.5vw, 4.2rem);
  font-weight: 600;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: 0.01em;
  position: relative;
}

.hero .gradient-text {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 50%, var(--gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

/* ─── Section Shared ─── */
section { padding: 5rem 0; }

.section-label {
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--gold-dark);
  margin-bottom: 0.6rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: 0.01em;
}

.section-subtitle {
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  text-align: center;
  font-size: 0.95rem;
}

.text-center { text-align: center; }

/* ─── Audience Toggles ─── */
.audience-section {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.toggle-group {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.toggle-btn {
  padding: 0.55rem 1.35rem;
  border-radius: 9999px;
  border: 1.5px solid var(--border-strong);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: all 0.25s ease;
}

.toggle-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.toggle-btn.active {
  background: var(--gold-glow);
  border-color: var(--gold);
  color: var(--gold);
}

.audience-panel { display: none; }
.audience-panel.active { display: block; }

.audience-panel h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--gold);
}

.audience-panel ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  max-width: 820px;
  margin: 0 auto;
}

.audience-panel li {
  background: var(--bg-card);
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.55;
  transition: border-color 0.2s ease;
}

.audience-panel li:hover {
  border-color: var(--border-strong);
}

.audience-panel li strong {
  color: var(--text-primary);
}

/* ─── Feature Cards ─── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-top: 2px solid var(--gold-dark);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.feature-card:hover {
  border-color: var(--border-strong);
  border-top-color: var(--gold);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3), 0 0 1px rgba(221, 196, 130, 0.15);
  transform: translateY(-2px);
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: 0.01em;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ─── How It Works ─── */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: center;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  margin: 0 auto 1rem;
  border: 1.5px solid var(--gold-dark);
  color: var(--gold);
  background: var(--gold-glow);
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.step p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.step-connector {
  display: none;
}

/* ─── CTA Footer ─── */
.cta-footer {
  text-align: center;
  padding: 5rem 0;
  background: linear-gradient(180deg, var(--bg-deep) 0%, #16181B 50%, var(--bg-deep) 100%);
  position: relative;
}

.cta-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-dark), transparent);
}

.cta-brandmark {
  position: absolute;
  bottom: -60px;
  right: 5%;
  width: 400px;
  height: auto;
  opacity: 0.03;
  pointer-events: none;
  user-select: none;
}

.cta-footer h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.25rem);
  font-weight: 600;
  margin-bottom: 1rem;
}

.cta-footer p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.cta-footer .cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.cta-footer .contact {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ─── Footer ─── */
footer {
  border-top: 1px solid var(--border-subtle);
  padding: 1.5rem 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

/* ─── Navbar Links ─── */
.navbar-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--gold);
  text-decoration: none;
}

.nav-link.active {
  color: var(--gold);
}

/* ─── Install Section ─── */
.install-section {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.install-tabs {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.install-tab {
  padding: 0.55rem 1.25rem;
  border-radius: 9999px;
  border: 1.5px solid var(--border-strong);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
}

.install-tab:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.install-tab.active {
  background: var(--gold-glow);
  border-color: var(--gold);
  color: var(--gold);
}

/* ─── Install Panels ─── */
.install-panel {
  display: none;
  max-width: 680px;
  margin: 0 auto;
}

.install-panel.active {
  display: block;
}

/* ─── Try-it Tabs & Panels ─── */
.tryit-tab {
  padding: 0.55rem 1.25rem;
  border-radius: 9999px;
  border: 1.5px solid var(--border-strong);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
}

.tryit-tab:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.tryit-tab.active {
  background: var(--gold-glow);
  border-color: var(--gold);
  color: var(--gold);
}

.tryit-panel {
  display: none;
}

.tryit-panel.active {
  display: block;
}

.code-block {
  background: var(--bg-deep);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1rem;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  background: rgba(44, 49, 54, 0.3);
  border-bottom: 1px solid var(--border-subtle);
}

.code-lang {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.copy-btn {
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 0.35rem;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.copy-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.code-block pre {
  padding: 1rem;
  overflow-x: auto;
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.install-panel .helper-note {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-top: 0.5rem;
}

/* ─── Card Tags ─── */
.card-tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  background: var(--gold-glow);
  color: var(--gold);
  border: 1px solid rgba(221, 196, 130, 0.2);
}

/* ─── Integrations Preview ─── */
.integrations-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  max-width: 820px;
  margin: 0 auto 2.5rem;
}

.integration-column {
  text-align: left;
}

.integration-heading {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 1rem;
}

.integration-list {
  list-style: none;
}

.integration-list li {
  padding: 0.55rem 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
  border-bottom: 1px solid rgba(221, 196, 130, 0.06);
}

.integration-list li:last-child {
  border-bottom: none;
}

.integration-list li::before {
  content: '\2726';
  color: var(--gold-dark);
  font-size: 0.7rem;
  margin-right: 0.75rem;
}

/* ─── Page Hero (sub-pages) ─── */
.page-hero {
  padding: 5rem 0 3rem;
  text-align: center;
  position: relative;
}

.page-hero-brandmark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 480px;
  height: auto;
  opacity: 0.04;
  pointer-events: none;
  user-select: none;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: 1rem;
  letter-spacing: 0.01em;
}

.page-hero p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ─── Inline Code ─── */
.code-inline {
  display: inline;
  background: rgba(44, 49, 54, 0.5);
  padding: 0.15rem 0.45rem;
  border-radius: 0.3rem;
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.8rem;
  color: var(--gold);
  border: 1px solid var(--border-subtle);
}

/* ─── Documentation Page ─── */
.doc-content {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.doc-section {
  margin-bottom: 3.5rem;
}

.doc-section h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.doc-section h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 1.5rem 0 0.75rem;
  color: var(--gold);
}

.doc-section h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 1.25rem 0 0.5rem;
  color: var(--text-primary);
}

.doc-section p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.doc-section ul,
.doc-section ol {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.doc-section li {
  margin-bottom: 0.35rem;
}

.doc-section strong {
  color: var(--text-primary);
}

/* Lifecycle diagram (ASCII art in a pre block) */
.lifecycle-diagram {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1.5rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

.lifecycle-diagram pre {
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--gold);
  margin: 0;
}

/* Hook cards grid */
.hooks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hook-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color 0.25s ease;
}

.hook-card:hover {
  border-color: var(--border-strong);
}

.hook-card h4 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 0.35rem;
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

.hook-card .hook-when {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.hook-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

/* Doc tables */
.doc-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
}

.doc-table th {
  text-align: left;
  padding: 0.65rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.doc-table td {
  padding: 0.65rem 1rem;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: top;
}

.doc-table code {
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.8rem;
  color: var(--gold);
  background: rgba(44, 49, 54, 0.5);
  padding: 0.1rem 0.35rem;
  border-radius: 0.25rem;
}

/* Doc nav (on-page ToC) */
.doc-nav {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 2.5rem;
}

.doc-nav h3 {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.doc-nav ol {
  list-style: decimal;
  padding-left: 1.25rem;
  margin: 0;
}

.doc-nav li {
  margin-bottom: 0.3rem;
}

.doc-nav a {
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
}

.doc-nav a:hover {
  color: var(--gold);
  text-decoration: none;
}

/* Checklist */
.checklist {
  list-style: none;
  padding-left: 0;
}

.checklist li {
  padding: 0.35rem 0;
  padding-left: 1.75rem;
  position: relative;
}

.checklist li::before {
  content: '\2610';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-size: 1.1rem;
}

/* ─── Animations ─── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero h1,
.hero p,
.hero .btn {
  animation: fadeInUp 0.6s ease both;
}

.hero p {
  animation-delay: 0.1s;
}

.hero .btn {
  animation-delay: 0.2s;
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .navbar .btn { display: none; }

  .hero { padding: 5rem 0 3rem; }

  .steps {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .audience-panel ul {
    grid-template-columns: 1fr;
  }

  .integrations-preview {
    grid-template-columns: 1fr;
  }

  .hooks-grid {
    grid-template-columns: 1fr;
  }

  .doc-table {
    font-size: 0.78rem;
  }

  .doc-table th,
  .doc-table td {
    padding: 0.5rem 0.65rem;
  }
}

@media (max-width: 480px) {
  .toggle-group {
    flex-direction: column;
    align-items: stretch;
  }

  .toggle-btn { text-align: center; }

  .cta-footer .btn,
  .hero .btn { width: 100%; justify-content: center; }

  .cta-footer .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .navbar-links {
    gap: 0.75rem;
  }

  .install-tabs {
    flex-direction: column;
    align-items: stretch;
  }

  .install-tab {
    text-align: center;
  }

  .tryit-tab {
    text-align: center;
  }
}