:root {
  --bg-page: #080a0f;
  --bg-surface: #0e121b;
  --bg-card: #131726;
  --bg-card-hover: #191f33;
  --bg-input: #0a0d14;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-accent: rgba(99, 102, 241, 0.35);

  --accent-primary: #6366f1; /* Electric Indigo */
  --accent-glow: rgba(99, 102, 241, 0.28);
  --accent-secondary: #818cf8; /* Ultra Violet */
  --accent-green: #10b981;
  --accent-teal: #14b8a6;
  --accent-gold: #f59e0b;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --spring-bounce: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(129, 140, 248, 0.06) 0%, transparent 40%);
  background-attachment: fixed;
}

a {
  color: var(--accent-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #a5b4fc;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14, 18, 27, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  height: 68px;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.breadcrumb-link {
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
}

.breadcrumb-link:hover {
  color: var(--text-main);
  border-color: var(--border-strong);
}

.brand-title {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-badge {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent-secondary);
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 2px 7px;
  border-radius: var(--radius-full);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-link {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--text-main);
}

/* Hero */
.hero-section {
  padding: 90px 24px 70px;
  text-align: center;
  max-width: 960px;
  margin: 0 auto;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: var(--accent-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.15);
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.gradient-text {
  background: linear-gradient(135deg, #6366f1 0%, #818cf8 50%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 740px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s var(--spring-bounce);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-strong);
}

.btn-secondary:hover {
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
  transform: translateY(-2px);
}

.cmd-box {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-muted);
}

.cmd-box code {
  color: var(--accent-secondary);
}

/* Sections */
.content-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 70px 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.f-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  color: var(--accent-secondary);
}

.f-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}

.f-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Install Grid */
.install-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 24px;
}

.install-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
}

.install-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.install-platform {
  font-size: 1.2rem;
  font-weight: 700;
}

.code-block {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  overflow-x: auto;
  margin-bottom: 20px;
  color: #cbd5e1;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 24px;
}

.about-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.about-profile {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.avatar-badge {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.3rem;
  color: #ffffff;
}

.profile-name {
  font-size: 1.2rem;
  font-weight: 700;
}

.profile-role {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.about-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

/* Footer */
.site-footer {
  margin-top: auto;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  padding: 40px 24px;
  font-size: 0.88rem;
  color: var(--text-dim);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
}