/* ════════════════════════════════════════════════════════════════
   LindaAI — Brand stylesheet
   Navy midnight + royal blue + purple-cyan accents
   © 2024–2026 LindaAI — Built by Daniel Wise
   ════════════════════════════════════════════════════════════════ */

:root {
  --bg-primary: #0a0e1e;
  --bg-secondary: #0f1430;
  --bg-card: #131a3a;
  --bg-elevated: #1a2349;
  --border: #2b7fff;
  --border-soft: #1e3266;
  --text-primary: #ffffff;
  --text-body: #a0a8c0;
  --text-muted: #6b7596;
  --accent-blue: #2b7fff;
  --accent-bright: #4da3ff;
  --accent-purple: #7c5cff;
  --accent-cyan: #00d4ff;
  --accent-red: #b91c1c;
  --accent-gold: #f59e0b;
  --accent-green: #22c55e;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --max-width: 1200px;
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg-primary);
  color: var(--text-body);
  font-family: var(--font-body);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background glow effect */
body::before {
  content: '';
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(43,127,255,0.18) 0%, rgba(124,92,255,0.08) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* Brand watermark — bottom-right, every page */
body::after {
  content: '';
  position: fixed;
  bottom: 18px;
  right: 18px;
  width: 96px;
  height: 73px;
  background: url('assets/logo-watermark.png') center / contain no-repeat;
  opacity: 0.22;
  pointer-events: none;
  z-index: 2;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.container-narrow { max-width: 800px; }

/* ═══════════════════ NAV ═══════════════════ */
.nav {
  position: sticky;
  top: 0;
  background: rgba(10, 14, 30, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-soft);
  z-index: 100;
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  padding-bottom: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.5px;
}
.logo img { border-radius: 8px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  color: var(--text-body);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent-bright); }

@media (max-width: 700px) {
  .nav-links a:not(.btn) { display: none; }
}

/* ═══════════════════ BUTTONS ═══════════════════ */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: 1px solid transparent;
  text-align: center;
  letter-spacing: 0.2px;
}
.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-lg { padding: 18px 40px; font-size: 17px; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
  color: white;
  box-shadow: 0 8px 24px rgba(43,127,255,0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(43,127,255,0.5); }
.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-soft);
}
.btn-secondary:hover { border-color: var(--accent-blue); }
.btn-tier {
  width: 100%;
  margin-top: 24px;
  background: rgba(43,127,255,0.1);
  color: var(--text-primary);
  border-color: var(--border-soft);
}
.btn-tier:hover { background: rgba(43,127,255,0.25); border-color: var(--accent-blue); }
.btn-gold {
  background: linear-gradient(135deg, #d4a017 0%, #b8860b 100%);
  color: #1a1a1a;
  border-color: #d4a017;
  font-weight: 700;
}
.btn-gold:hover { filter: brightness(1.1); }

/* ═══════════════════ HERO ═══════════════════ */
.hero {
  padding: 120px 0 80px;
  text-align: center;
  border-bottom: 2px solid var(--border);
}
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1.5px;
  color: var(--accent-bright);
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(72px, 14vw, 180px);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -4px;
  line-height: 0.95;
  margin-bottom: 24px;
  background: linear-gradient(180deg, #ffffff 0%, #a0a8c0 150%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-divider {
  width: 160px;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
  margin: 0 auto 32px;
  border-radius: 4px;
}
.hero-subtitle {
  font-family: var(--font-display);
  font-size: clamp(22px, 4vw, 36px);
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 24px;
}
.accent { color: var(--accent-bright); }
.hero-text {
  max-width: 680px;
  margin: 0 auto 40px;
  font-size: 17px;
  color: var(--text-body);
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 640px;
  margin: 0 auto;
}
.stat {
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  text-align: center;
}
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent-bright);
  line-height: 1;
}
.stat-label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-top: 8px;
}
@media (max-width: 600px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ═══════════════════ SECTIONS ═══════════════════ */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-secondary); }
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  letter-spacing: -1px;
  margin-bottom: 16px;
  line-height: 1.15;
}
.section-sub {
  text-align: center;
  font-size: 18px;
  color: var(--text-body);
  max-width: 640px;
  margin: 0 auto 56px;
}

/* ═══════════════════ VIDEO ═══════════════════ */
.video-section { padding: 80px 0; }
.video-wrapper {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(43,127,255,0.25);
  background: #000;
}
.video-wrapper video {
  width: 100%;
  display: block;
}
.video-watermark {
  position: absolute;
  bottom: 16px;
  right: 16px;
  padding: 8px 16px;
  background: rgba(10,14,30,0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--accent-bright);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  pointer-events: none;
  font-family: var(--font-display);
}

/* ═══════════════════ STEPS ═══════════════════ */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.step {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: all 0.3s;
  position: relative;
}
.step:hover {
  border-color: var(--accent-blue);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(43,127,255,0.2);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: white;
  font-weight: 700;
  font-size: 18px;
  border-radius: 12px;
  font-family: var(--font-display);
  margin-bottom: 16px;
}
.step h3 {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 20px;
  margin-bottom: 12px;
}
.step p { color: var(--text-body); font-size: 15px; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .steps { grid-template-columns: 1fr; } }

/* ═══════════════════ TIERS ═══════════════════ */
.tiers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.tier {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: all 0.3s;
  position: relative;
  display: flex;
  flex-direction: column;
}
.tier:hover { border-color: var(--accent-blue); transform: translateY(-4px); }
.tier-featured { border-color: var(--accent-blue); }
.tier-premium {
  border-color: var(--accent-gold);
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(245,158,11,0.05) 100%);
}
.tier-badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.tier-bronze { background: #92400e; color: #fef3c7; }
.tier-silver { background: #525252; color: #f5f5f5; }
.tier-gold { background: #a16207; color: #fef9c3; }
.tier-platinum { background: linear-gradient(135deg, #581c87, #7c3aed); color: #f3e8ff; }
.tier-price {
  font-family: var(--font-display);
  font-size: 44px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -1px;
}
.tier-tagline {
  color: var(--text-body);
  font-size: 14px;
  margin-bottom: 24px;
}
.tier-summary {
  background: rgba(43,127,255,0.08);
  border: 1px solid rgba(43,127,255,0.25);
  border-radius: 8px;
  padding: 10px 12px;
  text-align: center;
  font-size: 13px;
  color: var(--text-body);
  margin-bottom: 14px;
}
.tier-summary strong { color: var(--accent-bright); }
.tier-skills {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-body);
  background: rgba(255,255,255,0.02);
  border-radius: 8px;
  padding: 12px 14px !important;
  margin-bottom: 12px !important;
}
.tier-skills li {
  padding: 3px 0 !important;
  border: none !important;
  list-style: none;
}
.tier-skills li:first-child { color: var(--accent-bright); font-weight: 600; }
.tier-skills em { color: var(--accent-purple); font-style: normal; font-weight: 600; }
.tier-extras {
  list-style: none;
  padding: 0 !important;
  margin-bottom: 16px !important;
  font-size: 13px;
}
.tier-extras li {
  padding: 5px 0 !important;
  border: none !important;
  color: var(--text-body);
}
.tier ul {
  list-style: none;
  padding: 0;
  margin-bottom: 16px;
  flex: 1;
}
.tier li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border-soft);
  font-size: 14px;
  color: var(--text-body);
}
.tier li:last-of-type { border-bottom: none; }
.tier li strong { color: var(--text-primary); }
.ribbon {
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--accent-blue);
  color: white;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 4px 12px rgba(43,127,255,0.4);
}
.ribbon-gold {
  background: linear-gradient(135deg, #d4a017, #b8860b);
  color: #1a1a1a;
  box-shadow: 0 4px 12px rgba(212,160,23,0.4);
}
.addon {
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  gap: 24px;
  flex-wrap: wrap;
}
.addon h4 {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 18px;
  margin-bottom: 4px;
}
.addon p { font-size: 14px; color: var(--text-body); max-width: 520px; }
.addon-price {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-bright);
}
@media (max-width: 1000px) { .tiers { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .tiers { grid-template-columns: 1fr; } }

/* ═══════════════════ AGENTS GRID ═══════════════════ */
.agents-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 16px;
}
.agent {
  padding: 18px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-body);
  transition: all 0.2s;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.agent:hover { border-color: var(--accent-blue); background: var(--bg-elevated); transform: translateY(-3px); }
.agent .agent-avatar {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent-blue);
  box-shadow: 0 4px 14px rgba(43,127,255,0.25);
  background: var(--bg-elevated);
}
.agent strong {
  display: block;
  color: var(--accent-bright);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
}
.agent span {
  display: block;
  color: var(--text-muted, #94a3b8);
  font-size: 12px;
}
.rooster-agent {
  background: linear-gradient(135deg, var(--bg-card), rgba(245,158,11,0.08));
  border-color: var(--accent-gold);
}
.rooster-agent strong { color: var(--accent-gold); }

/* ═══════════════════ FEATURES ═══════════════════ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all 0.3s;
}
.feature:hover { border-color: var(--accent-purple); transform: translateY(-4px); }
.feature-icon {
  font-size: 36px;
  margin-bottom: 16px;
  display: inline-block;
}
.feature h3 {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 20px;
  margin-bottom: 12px;
}
.feature p { color: var(--text-body); font-size: 15px; }
.feature code {
  background: var(--bg-elevated);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--accent-bright);
  font-size: 0.9em;
  font-family: 'SF Mono', Consolas, Monaco, monospace;
}
@media (max-width: 900px) { .feature-grid { grid-template-columns: 1fr; } }

/* ═══════════════════ TERMINAL ═══════════════════ */
.terminal {
  max-width: 820px;
  margin: 40px auto;
  background: #050710;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(43,127,255,0.2);
}
.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-soft);
}
.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #28c840; }
.terminal-title {
  margin-left: auto;
  margin-right: auto;
  font-size: 12px;
  color: var(--text-muted);
  font-family: 'SF Mono', monospace;
}
.terminal-body {
  padding: 24px;
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 14px;
  line-height: 1.8;
}
.prompt {
  color: var(--text-primary);
  margin-bottom: 12px;
}
.prompt-mark { color: var(--accent-bright); margin-right: 8px; }
.response {
  color: var(--text-body);
  padding: 8px 0 16px 20px;
  border-left: 2px solid var(--border-soft);
  margin-bottom: 12px;
  margin-left: 8px;
}
.install-note {
  text-align: center;
  margin-top: 24px;
  color: var(--text-muted);
  font-size: 14px;
}

/* ═══════════════════ FAQ ═══════════════════ */
.faq {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq[open] { border-color: var(--accent-blue); }
.faq summary {
  padding: 20px 28px;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  color: var(--text-primary);
  list-style: none;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+';
  position: absolute;
  right: 28px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  color: var(--accent-bright);
  transition: transform 0.2s;
}
.faq[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq p {
  padding: 0 28px 24px;
  color: var(--text-body);
  font-size: 15px;
}
.faq a { color: var(--accent-bright); }
.faq code { background: var(--bg-elevated); padding: 2px 8px; border-radius: 4px; color: var(--accent-bright); font-size: 0.9em; }

/* ═══════════════════ CTA ═══════════════════ */
.cta {
  padding: 120px 0;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  border-top: 2px solid var(--border);
  border-bottom: 2px solid var(--border);
}
.cta h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.cta p { font-size: 18px; margin-bottom: 40px; color: var(--text-body); }
.cta-note {
  margin-top: 24px;
  font-size: 13px;
  color: var(--text-muted);
}

/* ═══════════════════ FOOTER ═══════════════════ */
.footer {
  padding: 60px 0 40px;
  background: var(--bg-primary);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}
.footer-brand img { border-radius: 6px; }
.footer-tagline { font-size: 14px; color: var(--text-muted); }
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: var(--text-body);
  text-decoration: none;
  font-size: 14px;
}
.footer-links a:hover { color: var(--accent-bright); }
.footer-legal {
  text-align: right;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-legal a { color: var(--accent-bright); text-decoration: none; }
.footer-legal p { margin-bottom: 4px; }
@media (max-width: 700px) {
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .footer-brand { justify-content: center; }
  .footer-legal { text-align: center; }
  .footer-links { flex-direction: row; justify-content: center; flex-wrap: wrap; }
}