/* ============================================
   ggcode — Landing Page
   ============================================ */

:root {
  --bg: #0a0a0f;
  --bg-surface: #12121a;
  --bg-card: #16161f;
  --border: #1e1e2a;
  --border-bright: #2a2a38;
  --text: #e4e4ed;
  --text-muted: #7878a0;
  --text-dim: #4a4a5e;
  --accent: #7c6cff;
  --accent-glow: rgba(124, 108, 255, 0.5);
  --accent-2: #2dd4bf;
  --accent-2-glow: rgba(45, 212, 191, 0.4);
  --accent-3: #f471b5;
  --success: #34d399;
  --radius: 14px;
  --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', Consolas, monospace;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ======================== HERO ======================== */

.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.35;
  animation: float 20s ease-in-out infinite;
}
.orb-1 { width: 500px; height: 500px; background: var(--accent); top: -100px; left: -80px; }
.orb-2 { width: 400px; height: 400px; background: var(--accent-2); bottom: -50px; right: -80px; animation-delay: -7s; }
.orb-3 { width: 300px; height: 300px; background: var(--accent-3); top: 40%; left: 50%; animation-delay: -14s; opacity: 0.2; }

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(40px, -30px) scale(1.05); }
  66%      { transform: translate(-30px, 20px) scale(0.95); }
}

/* Nav */
.nav {
  position: relative;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

.nav-brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-mark {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1rem;
  background: rgba(124, 108, 255, 0.1);
  padding: 2px 6px;
  border-radius: 6px;
  border: 1px solid rgba(124, 108, 255, 0.2);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

.lang-toggle {
  background: none;
  border: 1px solid var(--border-bright);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all 0.2s;
}
.lang-toggle:hover {
  color: var(--text);
  border-color: var(--accent);
}

/* Hero content */
.hero-content {
  position: relative;
  z-index: 5;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
  padding: 60px 24px 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--border-bright);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(10px);
  margin-bottom: 28px;
  align-self: center;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 50%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% 200%;
  animation: gradientShift 6s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

/* Hero install */
.hero-install {
  margin-bottom: 32px;
}

.install-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 12px;
}

.tab {
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 8px 16px;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  font-weight: 500;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.2s;
}
.tab:hover { color: var(--text-muted); }
.tab.active {
  color: var(--text);
  background: var(--bg-surface);
}

.install-bar {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 4px 4px 18px;
  max-width: 560px;
  margin: 0 auto;
  transition: border-color 0.2s;
}
.install-bar:focus-within { border-color: var(--accent); }

.install-bar code {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text);
  text-align: left;
  overflow-x: auto;
  white-space: nowrap;
}

/* Buttons */
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-family: var(--font-sans);
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #6c5ce7 100%);
  color: white;
  box-shadow: 0 4px 24px var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 32px var(--accent-glow);
}
.btn-ghost {
  background: var(--bg-surface);
  color: var(--text);
  border: 1px solid var(--border-bright);
}
.btn-ghost:hover {
  border-color: var(--text-muted);
}
.btn-outline {
  font-size: 0.9rem;
  padding: 10px 20px;
  border-radius: 10px;
}

/* Copy button */
.copy-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.15s;
  flex-shrink: 0;
}
.copy-btn:hover { color: var(--accent); border-color: var(--accent); }
.copy-btn.copied { color: var(--success); border-color: var(--success); }
.copy-btn.small { width: 30px; height: 30px; }

/* Terminal preview */
.terminal-preview {
  position: relative;
  z-index: 5;
  max-width: 680px;
  margin: 56px auto 0;
  background: #0d0d14;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5), 0 0 40px rgba(124, 108, 255, 0.08);
}

.terminal-chrome {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: #0f0f17;
  border-bottom: 1px solid var(--border);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-r { background: #ff5f57; }
.dot-y { background: #febc2e; }
.dot-g { background: #28c840; }
.terminal-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-left: 8px;
}

.terminal-content {
  padding: 20px 24px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.8;
  overflow-x: auto;
}

.terminal-line { white-space: pre; }
.t-prompt { color: var(--accent-2); }
.t-cmd { color: var(--text); }
.t-muted { color: var(--text-dim); }
.t-accent { color: var(--accent); }
.t-success { color: var(--success); }

/* ======================== SECTIONS ======================== */

.section-header {
  text-align: center;
  padding: 100px 24px 60px;
  max-width: 800px;
  margin: 0 auto;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.muted { color: var(--text-muted); }

/* ======================== FEATURES ======================== */

.features {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all 0.3s;
}
.feature-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-2px);
  background: var(--bg-surface);
}

.feature-card-wide {
  grid-column: span 2;
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 14px;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ======================== INSTALL ======================== */

.install {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 100px;
}

.install-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.install-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.3s;
}
.install-card:hover {
  border-color: var(--border-bright);
}

.install-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.install-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
}

.install-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.install-card .cmd {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: #0d0d14;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  overflow-x: auto;
  white-space: pre;
  color: var(--text);
}

.install-card-link {
  align-items: flex-start;
}

.install-card-link .btn {
  margin-top: auto;
}

/* ======================== CTA ======================== */

.cta {
  max-width: 800px;
  margin: 40px auto;
  text-align: center;
  padding: 80px 24px;
  position: relative;
}

.cta-content h2 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.cta-content p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 36px;
}

.cta .hero-actions { justify-content: center; }

/* ======================== FOOTER ======================== */

.footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 32px 24px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.footer a {
  color: var(--text-muted);
  text-decoration: none;
}
.footer a:hover { color: var(--text); }

/* ======================== REVEAL ANIMATION ======================== */

[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ======================== RESPONSIVE ======================== */

@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card-wide { grid-column: span 2; }
  .install-cards { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav { padding: 16px 20px; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 0.85rem; }

  .hero-content { padding-top: 40px; }
  .hero-content h1 { font-size: 2.2rem; }
  .hero-sub { font-size: 1rem; }

  .feature-grid { grid-template-columns: 1fr; }
  .feature-card-wide { grid-column: span 1; }
  .install-cards { grid-template-columns: 1fr; }

  .section-header { padding: 60px 20px 40px; }
  .section-header h2 { font-size: 1.8rem; }

  .terminal-preview { margin: 40px 16px 0; }
  .terminal-content { font-size: 0.75rem; }

  .install-tabs { gap: 2px; }
  .tab { padding: 6px 10px; font-size: 0.8rem; }

  .cta { padding: 60px 20px; }
}

@media (max-width: 480px) {
  .lang-toggle { display: none; }
  .nav-links a:nth-child(1) { display: none; }
}