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

:root {
  --bg: #0a0a0f;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(167, 139, 250, 0.3);
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --text-muted: #64748b;
  --accent: #a78bfa;
  --accent-blue: #60a5fa;
  --gradient-start: #7c3aed;
  --gradient-end: #2563eb;
  --glow-purple: rgba(124, 58, 237, 0.15);
  --glow-blue: rgba(37, 99, 235, 0.12);
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1200px;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--accent-blue);
}

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

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

section {
  padding: 120px 0;
  position: relative;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background 0.3s, backdrop-filter 0.3s;
}

.nav.scrolled {
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.nav-logo img {
  width: 28px;
  height: 28px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-dim);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-github {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--text-dim) !important;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s;
}

.nav-github:hover {
  border-color: var(--border-hover);
  color: var(--text) !important;
  background: var(--bg-card-hover);
}

/* Language Switcher */
.lang-switcher {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  font-size: 0.85rem;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
}

.lang-btn:hover {
  border-color: var(--border-hover);
  color: var(--text);
}

.lang-btn svg {
  width: 12px;
  height: 12px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 160px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(15, 15, 22, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all 0.2s;
  z-index: 200;
}

.lang-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 12px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-dim);
  font-size: 0.85rem;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
  text-align: left;
}

.lang-option:hover {
  background: var(--bg-card-hover);
  color: var(--text);
}

.nav-github svg {
  width: 18px;
  height: 18px;
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}

.hero::before {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--gradient-start), transparent 70%);
  top: -200px;
  right: -100px;
  opacity: 0.4;
  animation: float-orb 15s ease-in-out infinite;
}

.hero::after {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--gradient-end), transparent 70%);
  bottom: -150px;
  left: -100px;
  opacity: 0.3;
  animation: float-orb 18s ease-in-out infinite reverse;
}

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

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-logo {
  width: 120px;
  height: 120px;
  margin: 0 auto 32px;
  border-radius: 24px;
  box-shadow: 0 0 60px rgba(124, 58, 237, 0.2), 0 0 120px rgba(37, 99, 235, 0.1);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 8px rgba(74, 222, 128, 0.5);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 50%, var(--accent-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-dim);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.25s;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: white;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.4);
}

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

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

.btn svg {
  width: 18px;
  height: 18px;
}

/* ===== Section Header ===== */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--text) 0%, var(--text-dim) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto;
}

/* ===== Features ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 32px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, transparent 40%, var(--gradient-start) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s;
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  border-color: transparent;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.15), rgba(37, 99, 235, 0.15));
  font-size: 1.4rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

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

/* ===== Screenshots ===== */
.screenshots-section {
  overflow: hidden;
}

/* Carousel */
.carousel {
  max-width: 800px;
  margin: 0 auto;
}

.carousel-viewport {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #0c0c14;
  position: relative;
}

.carousel-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-slide {
  min-width: 100%;
  cursor: zoom-in;
}

.carousel-slide .terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}

.terminal-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }

.terminal-title {
  margin-left: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.carousel-slide img {
  width: 100%;
  height: auto;
  display: block;
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 20px;
}

.carousel-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.carousel-btn:hover {
  border-color: var(--border-hover);
  color: var(--text);
  background: var(--bg-card-hover);
}

.carousel-dots {
  display: flex;
  gap: 8px;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: var(--border);
  cursor: pointer;
  transition: all 0.3s;
  padding: 0;
}

.carousel-dot.active {
  background: var(--accent);
  box-shadow: 0 0 8px rgba(167, 139, 250, 0.4);
  width: 24px;
  border-radius: 4px;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.lightbox.open {
  opacity: 1;
  visibility: visible;
}

.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }

/* ===== Quick Start ===== */
.quickstart-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.install-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.step {
  padding: 20px 24px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.step-number {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: white;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text);
}

.step-content p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.step-content code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--accent);
}

/* Code Block */
.code-block {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.code-block-lang {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.code-block-copy {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.8rem;
  cursor: pointer;
  font-family: var(--font-mono);
  transition: all 0.2s;
}

.code-block-copy:hover {
  color: var(--text);
  border-color: var(--border-hover);
}

.code-block-copy.copied {
  color: #4ade80;
  border-color: rgba(74, 222, 128, 0.3);
}

.code-block pre {
  padding: 20px;
  margin: 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--text-dim);
}

.code-block pre .comment {
  color: var(--text-muted);
}

.code-block pre .command {
  color: var(--text);
}

.code-block pre .prompt {
  color: var(--accent);
  user-select: none;
}

/* Keybinding Table */
.keybindings {
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--bg-card);
}

.keybindings-title {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.keybindings table {
  width: 100%;
  border-collapse: collapse;
}

.keybindings th,
.keybindings td {
  padding: 10px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
}

.keybindings th {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.keybindings tr:last-child td {
  border-bottom: none;
}

.keybindings kbd {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
}

.keybindings td:last-child {
  color: var(--text-muted);
}

/* ===== CTA ===== */
.cta {
  padding: 100px 0 120px;
}

.cta-inner {
  text-align: center;
  padding: 64px 40px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
}

.cta-inner::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--gradient-start), transparent 70%);
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0.15;
  filter: blur(80px);
  pointer-events: none;
}

.cta-inner h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  position: relative;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-inner p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 32px;
  line-height: 1.7;
  position: relative;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-left img {
  width: 24px;
  height: 24px;
  opacity: 0.6;
}

.footer-left span {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

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

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

/* ===== Scroll Animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered animation for grid items */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  section {
    padding: 80px 0;
  }

  .nav-links .nav-link-text {
    display: none;
  }

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

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

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .footer .container {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-logo {
    width: 80px;
    height: 80px;
  }
}