/* ═══════════════════════════════════════════════════════
   OpenClawMate — Promotional Website Styles
   Design: Dark tech + Lobster Red brand
   ═══════════════════════════════════════════════════════ */

/* ─── Design Tokens ─── */
:root {
  --bg-deep: #060a14;
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.6);
  --bg-card-hover: rgba(25, 35, 55, 0.8);

  --brand-red: #ef4444;
  --brand-orange: #f97316;
  --brand-gradient: linear-gradient(135deg, #ef4444, #f97316);
  --brand-glow: rgba(239, 68, 68, 0.15);

  --accent-cyan: #06b6d4;
  --accent-cyan-dim: rgba(6, 182, 212, 0.15);

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --border-subtle: rgba(148, 163, 184, 0.08);
  --border-card: rgba(148, 163, 184, 0.12);

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;

  --shadow-glow: 0 0 60px rgba(239, 68, 68, 0.08);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1100px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

img { max-width: 100%; }

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

/* ─── Navbar ─── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  background: rgba(6, 10, 20, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(6, 10, 20, 0.92);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.nav-logo:hover { opacity: 0.8; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand-gradient);
  transition: width 0.3s ease;
  border-radius: 1px;
}

.nav-links a:hover::after { width: 100%; }

.nav-github {
  display: flex !important;
  align-items: center;
  gap: 6px;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-card);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition);
}

.lang-switch:hover {
  border-color: var(--brand-red);
  color: var(--text-primary);
  background: rgba(239, 68, 68, 0.06);
}

.lang-icon { font-size: 1rem; }

.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ─── Hero ─── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(239, 68, 68, 0.08) 0%, rgba(249, 115, 22, 0.04) 40%, transparent 70%);
  pointer-events: none;
}

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

.hero-badge {
  display: inline-flex;
  padding: 6px 18px;
  border-radius: 100px;
  border: 1px solid var(--border-card);
  background: rgba(239, 68, 68, 0.06);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}

.hero-title {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 30%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-emoji {
  -webkit-text-fill-color: initial;
  display: inline-block;
  animation: lobsterBounce 3s ease-in-out infinite;
}

@keyframes lobsterBounce {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25% { transform: translateY(-8px) rotate(-5deg); }
  75% { transform: translateY(-4px) rotate(3deg); }
}

.hero-subtitle {
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  font-weight: 600;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

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

.hero-install-hint {
  margin-top: 10px;
  font-size: 0.8rem;
  color: #22c55e;
  font-weight: 500;
  letter-spacing: 0.02em;
  opacity: 0.85;
}

.tab-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 100px;
  background: #22c55e;
  color: #fff;
  margin-left: 4px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  line-height: 1.4;
}

.install-tab.active .tab-badge {
  background: rgba(255,255,255,0.25);
}

.install-box {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: rgba(17, 24, 39, 0.8);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  backdrop-filter: blur(10px);
  max-width: 100%;
  overflow: hidden;
}

.install-prompt {
  color: var(--accent-cyan);
  font-weight: 600;
  flex-shrink: 0;
}

.install-cmd {
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.install-copy {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: none;
  background: rgba(148, 163, 184, 0.1);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.install-copy:hover {
  background: rgba(239, 68, 68, 0.15);
  color: var(--brand-red);
}

.install-copy svg { transition: var(--transition); }

.install-copy .copy-feedback {
  position: absolute;
  opacity: 0;
  color: #22c55e;
  font-size: 1rem;
  transition: var(--transition);
}

.install-copy.copied svg { opacity: 0; }
.install-copy.copied .copy-feedback { opacity: 1; }

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: var(--brand-gradient);
  color: white;
  box-shadow: 0 4px 20px rgba(239, 68, 68, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(239, 68, 68, 0.35);
}

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

.btn-outline:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
  background: rgba(148, 163, 184, 0.05);
}

/* Hero Particles */
.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--brand-red);
  border-radius: 50%;
  opacity: 0;
  animation: particleFade 4s ease-in-out infinite;
}

@keyframes particleFade {
  0%, 100% { opacity: 0; transform: translateY(0); }
  50% { opacity: 0.6; transform: translateY(-40px); }
}

/* ─── Section Common ─── */
.section-title {
  text-align: center;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 56px;
}
/* ─── Pain Points ─── */
.painpoints {
  padding: 80px 0 40px;
  position: relative;
}

.painpoints::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-card), transparent);
}

.painpoints-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pp-card {
  display: flex;
  align-items: center;
  gap: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  overflow: hidden;
  transition: var(--transition);
}

.pp-card:hover {
  border-color: rgba(239, 68, 68, 0.15);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.pp-pain, .pp-solution {
  flex: 1;
  padding: 24px 28px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.pp-pain {
  background: rgba(239, 68, 68, 0.04);
  border-right: none;
}

.pp-pain p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

.pp-solution {
  background: rgba(34, 197, 94, 0.04);
}

.pp-solution p {
  color: var(--text-primary);
  font-size: 0.92rem;
  font-weight: 500;
  line-height: 1.6;
}

.pp-emoji {
  font-size: 1.6rem;
  flex-shrink: 0;
}

.pp-arrow {
  flex-shrink: 0;
  width: 40px;
  text-align: center;
  font-size: 1.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--brand-red), #22c55e);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: arrowPulse 2s ease-in-out infinite;
}

@keyframes arrowPulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

@media (max-width: 700px) {
  .pp-card {
    flex-direction: column;
  }
  .pp-pain, .pp-solution {
    padding: 18px 20px;
    border-right: none;
  }
  .pp-arrow {
    width: auto;
    padding: 4px 0;
    transform: rotate(90deg);
  }
}

/* ─── Features ─── */
.features {
  padding: 100px 0;
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-card), transparent);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-card {
  position: relative;
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  transition: var(--transition);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--brand-gradient);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: rgba(239, 68, 68, 0.2);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

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

.feature-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
  display: inline-block;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
  border: 1px solid rgba(6, 182, 212, 0.15);
}

/* ─── Chat Demo ─── */
.demo {
  padding: 80px 0 100px;
}

.chat-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
}

.chat-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--border-card);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition);
}

.chat-tab:hover {
  color: var(--text-secondary);
  border-color: var(--text-muted);
}

.chat-tab.active {
  background: var(--brand-gradient);
  color: white;
  border-color: transparent;
}

.chat-tab-icon { font-size: 1rem; }

/* Chat Window */
.chat-window {
  max-width: 520px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-card);
  background: rgba(10, 14, 26, 0.9);
  overflow: hidden;
  box-shadow: var(--shadow-card), 0 0 80px rgba(239, 68, 68, 0.04);
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: rgba(17, 24, 39, 0.6);
  border-bottom: 1px solid var(--border-subtle);
}

.chat-header-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--brand-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.chat-header-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.chat-header-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.chat-header-status {
  font-size: 0.72rem;
  color: #22c55e;
  font-weight: 500;
}

.chat-header-client {
  font-size: 0.72rem;
  color: var(--text-muted);
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid var(--border-subtle);
  font-weight: 600;
}

/* Chat body */
.chat-body {
  padding: 20px 16px;
  min-height: 360px;
  max-height: 440px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Chat bubbles */
.chat-msg {
  display: flex;
  gap: 10px;
  max-width: 88%;
  animation: msgSlideIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes msgSlideIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.chat-msg.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-msg-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.chat-msg.bot .chat-msg-avatar {
  background: var(--brand-gradient);
}

.chat-msg.user .chat-msg-avatar {
  background: rgba(6, 182, 212, 0.2);
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.chat-msg-bubble {
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 0.85rem;
  line-height: 1.7;
  word-break: break-word;
}

.chat-msg.user .chat-msg-bubble {
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.15);
  color: var(--text-primary);
  border-bottom-right-radius: 4px;
}

.chat-msg.bot .chat-msg-bubble {
  background: rgba(17, 24, 39, 0.7);
  border: 1px solid var(--border-card);
  color: var(--text-secondary);
  border-bottom-left-radius: 4px;
}

.chat-msg.bot .chat-msg-bubble pre {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.65;
  white-space: pre-wrap;
  margin-top: 6px;
  padding: 10px 12px;
  background: rgba(6, 10, 20, 0.5);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

/* Typing indicator */
.chat-typing {
  display: flex;
  gap: 10px;
  max-width: 88%;
  animation: msgSlideIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.chat-typing-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--brand-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.chat-typing-dots {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 18px;
  border-radius: 16px;
  background: rgba(17, 24, 39, 0.7);
  border: 1px solid var(--border-card);
  border-bottom-left-radius: 4px;
}

.chat-typing-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  animation: typingDot 1.4s ease-in-out infinite;
}

.chat-typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.chat-typing-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingDot {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-4px); }
}

/* Chat input bar */
.chat-input-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-top: 1px solid var(--border-subtle);
  background: rgba(17, 24, 39, 0.3);
}

.chat-input-field {
  flex: 1;
  padding: 8px 14px;
  border-radius: 20px;
  border: 1px solid var(--border-card);
  background: rgba(6, 10, 20, 0.5);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-family: var(--font-body);
}

.chat-send-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--brand-gradient);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.chat-send-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.3);
}

/* ─── Quick Start ─── */
.quickstart {
  padding: 100px 0;
  position: relative;
}

.quickstart::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-card), transparent);
}

/* Install method tabs */
.install-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
}

.install-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--border-card);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: var(--transition);
}

.install-tab:hover {
  color: var(--text-secondary);
  border-color: var(--text-muted);
}

.install-tab.active {
  background: var(--brand-gradient);
  color: white;
  border-color: transparent;
}

.steps {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.step {
  display: flex;
  gap: 24px;
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.step:hover {
  border-color: rgba(239, 68, 68, 0.15);
  background: var(--bg-card-hover);
}

.step-number {
  font-size: 2.4rem;
  font-weight: 900;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  flex-shrink: 0;
  opacity: 0.7;
}

.step-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 14px;
}

.step-code {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: rgba(6, 10, 20, 0.6);
  border: 1px solid var(--border-subtle);
}

.step-code code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-cyan);
}

.step-code-chat {
  background: rgba(239, 68, 68, 0.04);
  border-color: rgba(239, 68, 68, 0.12);
}

.step-code-chat code {
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
}

/* ─── Platforms ─── */
.platforms {
  padding: 80px 0 100px;
  position: relative;
}

.platforms::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-card), transparent);
}

.platform-table-wrap {
  max-width: 640px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-card);
  background: var(--bg-card);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

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

.platform-table th,
.platform-table td {
  padding: 14px 20px;
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
}

.platform-table th {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  background: rgba(17, 24, 39, 0.4);
}

.platform-table td {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.platform-table td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
}

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

.platform-table code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent-cyan);
}

/* ─── Footer ─── */
.footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--border-subtle);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.footer-logo {
  font-size: 1.1rem;
  font-weight: 700;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 4px;
  font-style: italic;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: var(--transition);
}

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

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.78rem;
}

/* ─── Fade-in Animation ─── */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(6, 10, 20, 0.96);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border-subtle);
  }
  .nav-mobile-toggle { display: flex; }

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

  .hero { padding: 100px 20px 60px; min-height: auto; }
  .hero-title { font-size: 2.6rem; }
  .hero-desc { font-size: 0.95rem; }

  .install-box {
    flex-direction: column;
    gap: 8px;
    text-align: left;
    width: 100%;
  }
  .install-cmd {
    font-size: 0.72rem;
    white-space: normal;
    word-break: break-all;
  }

  .step { flex-direction: column; gap: 12px; }
  .step-number { font-size: 1.8rem; }

  .footer-inner { flex-direction: column; gap: 20px; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; }

  .platform-table th,
  .platform-table td { padding: 10px 12px; font-size: 0.8rem; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .hero-badge { font-size: 0.75rem; padding: 5px 14px; }
  .hero-cta { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }
}