/* ═══════════════════════════════════════════════════════
   Orzatty v2 Design System
   Premium Dark · OpenAI × Apple × Material 3
   ═══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-primary: #0A0A0A;
  --bg-secondary: #111111;
  --bg-card: #161618;
  --bg-card-hover: #1C1C1E;
  --bg-elevated: #1F1F23;
  --text-primary: #FAFAFA;
  --text-secondary: #A1A1AA;
  --text-tertiary: #52525B;
  --text-muted: #3F3F46;
  --accent: #007AFF;
  --accent-soft: rgba(0, 122, 255, 0.12);
  --accent-glow: rgba(0, 122, 255, 0.25);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --border-strong: rgba(255, 255, 255, 0.15);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --container-max: 1200px;
  --nav-height: 64px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-secondary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ─── Typography ─── */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p { max-width: 65ch; }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

/* ─── Layout ─── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

@media (min-width: 1024px) {
  .container { padding: 0 40px; }
}

.section {
  padding: 100px 0;
  position: relative;
}

@media (min-width: 768px) {
  .section { padding: 140px 0; }
}

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

/* ─── Navbar ─── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(10, 10, 10, 0.7);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition-base), border-color var(--transition-base);
}

.navbar .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.navbar-brand img {
  height: 28px;
  width: auto;
}

.navbar-nav {
  display: none;
  align-items: center;
  gap: 6px;
}

@media (min-width: 768px) {
  .navbar-nav { display: flex; }
}

.nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
  white-space: nowrap;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-primary);
}

.btn-primary:hover {
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.15);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}

.btn-outline:hover {
  border-color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
}

/* ─── Hero ─── */
.hero {
  position: relative;
  padding-top: calc(var(--nav-height) + 100px);
  padding-bottom: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  overflow: hidden;
}

@media (min-width: 768px) {
  .hero {
    padding-top: calc(var(--nav-height) + 160px);
    padding-bottom: 140px;
  }
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%; left: 50%;
  transform: translateX(-50%);
  width: 120%;
  height: 80%;
  background: radial-gradient(ellipse 60% 50% at 50% 30%, rgba(0, 122, 255, 0.12), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 28px;
}

.hero-badge .dot {
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-glow);
}

.hero h1 {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 20px;
  line-height: 1.05;
}

.hero .subtitle {
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  line-height: 1.6;
  max-width: 640px;
  margin: 0 auto 36px;
  color: var(--text-secondary);
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ─── Cards / Workspaces ─── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 48px;
}

.card-grid.two-col { grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); }

@media (min-width: 768px) {
  .card-grid { gap: 20px; }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform var(--transition-base), border-color var(--transition-base), background var(--transition-base);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-3px);
}

.card .card-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.card p {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-secondary);
  flex-grow: 1;
}

.card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap var(--transition-fast);
}

.card:hover .card-arrow { gap: 8px; }

.card-wide {
  grid-column: span 1;
}

@media (min-width: 768px) {
  .card-wide { grid-column: span 2; }
}

/* ─── Section Heading ─── */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

.section-title {
  max-width: 750px;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  line-height: 1.6;
  max-width: 600px;
  color: var(--text-secondary);
}

/* ─── Stats / Terminal ─── */
.terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
}

.terminal-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.terminal-row:last-child { border-bottom: none; }

.terminal-key { color: var(--text-tertiary); }
.terminal-val { color: var(--text-primary); font-weight: 600; }
.terminal-val.accent { color: var(--accent); }

/* ─── Timeline ─── */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
  padding-left: 24px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 1px;
  background: var(--border);
}

.timeline-item {
  position: relative;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px; top: 5px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 1px solid var(--border-hover);
}

.timeline-item.active::before {
  border-color: var(--accent);
  background: var(--accent-glow);
  box-shadow: 0 0 8px var(--accent-glow);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.timeline-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.timeline-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ─── Partners ─── */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 16px;
  margin-top: 48px;
}

.partner-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition-base);
}

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

/* ─── Carousel (Logos) ─── */
.logo-track {
  display: flex;
  gap: 64px;
  align-items: center;
  opacity: 0.4;
  filter: grayscale(1);
}

/* ─── Manifesto ─── */
.manifesto {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 300;
  line-height: 1.4;
  text-align: center;
  color: var(--text-primary);
  max-width: 800px;
  margin: 0 auto;
}

.manifesto-author {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

/* ─── Footer ─── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 32px;
  margin-bottom: 48px;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li { margin-bottom: 8px; }

.footer-col a {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-col a:hover { color: var(--text-primary); }

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.footer-brand img { height: 22px; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

/* ─── Mobile Menu ─── */
.mobile-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
}

@media (min-width: 768px) {
  .mobile-toggle { display: none !important; }
}

/* ─── Utilities ─── */
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }
.mb-10 { margin-bottom: 40px; }
.mb-12 { margin-bottom: 48px; }
.mb-16 { margin-bottom: 64px; }

.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
}

.max-w-prose { max-width: 65ch; }