/* ============================================
   LandAIA Landing Page - Modern Design System
   ============================================ */

/* --- CSS Variables --- */
:root {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  --accent: #8b5cf6;
  --accent-dark: #7c3aed;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;

  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1629;
  --bg-card: rgba(15, 22, 41, 0.6);
  --bg-glass: rgba(255, 255, 255, 0.05);
  --bg-glass-hover: rgba(255, 255, 255, 0.1);

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

  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(59, 130, 246, 0.3);

  --gradient-primary: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --gradient-accent: linear-gradient(135deg, #8b5cf6, #ec4899);
  --gradient-hero: radial-gradient(ellipse at 30% 0%, rgba(59, 130, 246, 0.15) 0%, transparent 60%),
                   radial-gradient(ellipse at 70% 0%, rgba(139, 92, 246, 0.1) 0%, transparent 60%);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.2);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }

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

/* --- Particles Canvas --- */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* --- Gradient Text --- */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.gradient-text-light {
  background: linear-gradient(135deg, #60a5fa, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 600;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}
.btn-sm { padding: 8px 20px; font-size: 0.875rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(59, 130, 246, 0.4);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.btn-ghost:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
  background: var(--bg-glass);
}
.btn-glass {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}
.btn-glass:hover {
  background: var(--bg-glass-hover);
  border-color: rgba(255, 255, 255, 0.15);
}
.btn-accent {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(139, 92, 246, 0.4);
}
.btn-white {
  background: #fff;
  color: var(--bg-primary);
  font-weight: 700;
}
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255,255,255,0.2); }
.btn-glass-light {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
}
.btn-glass-light:hover { background: rgba(255,255,255,0.2); }
.btn-glow { animation: glow-pulse 3s ease-in-out infinite; }

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3); }
  50% { box-shadow: 0 4px 30px rgba(59, 130, 246, 0.5), 0 0 60px rgba(59, 130, 246, 0.15); }
}

/* ============================
   HEADER
   ============================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}
.header.scrolled {
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 0;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  z-index: 100;
}
.logo-img { width: 36px; height: 36px; }

/* Nav */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  transition: var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
  background: var(--bg-glass);
}
.nav-cta { display: flex; align-items: center; gap: 12px; }

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 100;
}
.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.mobile-menu-btn.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 14, 26, 0.98);
  backdrop-filter: blur(20px);
  z-index: 99;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.mobile-menu.active { opacity: 1; pointer-events: all; }
.mobile-nav-link {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 12px 24px;
}
.mobile-nav-link:hover { color: var(--text-primary); }
.mobile-nav-cta { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }

/* ============================
   HERO
   ============================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}
.hero-bg-gradient {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  z-index: 0;
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--primary-light);
  margin-bottom: 24px;
}
.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: dot-pulse 2s ease-in-out infinite;
}
@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 520px;
  line-height: 1.7;
}
.hero-description strong {
  color: var(--primary-light);
  font-weight: 600;
}
.hero-cta { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 40px;
}
.hero-stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}
.hero-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-phone {
  position: relative;
  width: 280px;
  height: 560px;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  border-radius: 40px;
  border: 2px solid rgba(255,255,255,0.1);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 80px rgba(59,130,246,0.1);
}
.hero-phone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 38px;
}
.hero-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(59,130,246,0.15) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: -1;
}

/* Float Cards */
.hero-float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  animation: float 6s ease-in-out infinite;
}
.glass-card {
  background: rgba(15, 22, 41, 0.8);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}
.card-1 { top: 15%; left: -30px; animation-delay: 0s; }
.card-2 { top: 50%; right: -40px; animation-delay: 2s; }
.card-3 { bottom: 15%; left: -20px; animation-delay: 4s; }
.float-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.float-icon.blue { background: rgba(59,130,246,0.2); }
.float-icon.purple { background: rgba(139,92,246,0.2); }
.float-icon.green { background: rgba(16,185,129,0.2); }
.float-card-title { font-weight: 600; font-size: 0.875rem; }
.float-card-value { font-size: 0.75rem; color: var(--text-muted); }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ============================
   TRUST BAR
   ============================ */
.trust-bar {
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  z-index: 1;
}
.trust-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}
.trust-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.trust-logos {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}
.trust-logos span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
}

/* ============================
   SECTION HEADER (reusable)
   ============================ */
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag {
  display: inline-block;
  padding: 4px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary-light);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}
.tag-light {
  color: #c084fc;
  background: rgba(139,92,246,0.1);
  border-color: rgba(139,92,246,0.2);
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============================
   FEATURES - Bento Grid
   ============================ */
.features {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}
.features-bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.bento-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}
.bento-card:hover {
  border-color: rgba(59,130,246,0.2);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.bento-card:hover::before { opacity: 1; }
.bento-large { grid-column: span 2; }
.bento-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.bento-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.bento-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Feature Tag */
.card-tag {
  display: inline-block;
  margin-top: 12px;
  padding: 2px 10px;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  background: rgba(59,130,246,0.1);
  color: var(--primary-light);
  border: 1px solid rgba(59,130,246,0.2);
}
.tag-ai { background: rgba(139,92,246,0.1); color: #c084fc; border-color: rgba(139,92,246,0.2); }
.tag-smart { background: rgba(16,185,129,0.1); color: #34d399; border-color: rgba(16,185,129,0.2); }
.tag-new { background: rgba(245,158,11,0.1); color: #fbbf24; border-color: rgba(245,158,11,0.2); }

/* Icon Gradients */
.gradient-blue { background: linear-gradient(135deg, #3b82f6, #60a5fa); }
.gradient-amber { background: linear-gradient(135deg, #f59e0b, #fbbf24); }
.gradient-purple { background: linear-gradient(135deg, #8b5cf6, #a78bfa); }
.gradient-pink { background: linear-gradient(135deg, #ec4899, #f472b6); }
.gradient-red { background: linear-gradient(135deg, #ef4444, #f87171); }
.gradient-orange { background: linear-gradient(135deg, #f97316, #fb923c); }
.gradient-indigo { background: linear-gradient(135deg, #6366f1, #818cf8); }
.gradient-cyan { background: linear-gradient(135deg, #06b6d4, #22d3ee); }
.gradient-rose { background: linear-gradient(135deg, #f43f5e, #fb7185); }

/* ============================
   AI ASSISTANT
   ============================ */
.ai-section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
  background: var(--bg-secondary);
  overflow: hidden;
}
.ai-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at 80% 50%, rgba(139,92,246,0.08) 0%, transparent 70%);
}
.ai-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.ai-content h2 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}
.ai-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}
.ai-features { display: flex; flex-direction: column; gap: 20px; margin-bottom: 32px; }
.ai-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.ai-check {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  background: rgba(139,92,246,0.15);
  color: #c084fc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  margin-top: 2px;
}
.ai-feature-item h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 2px; }
.ai-feature-item p { font-size: 0.85rem; color: var(--text-muted); }

/* AI Chat Demo */
.ai-chat-mockup {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  max-width: 400px;
  margin: 0 auto;
}
.ai-chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  background: rgba(15, 22, 41, 0.8);
}
.ai-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.ai-chat-name { font-weight: 600; font-size: 0.95rem; }
.ai-chat-status { font-size: 0.75rem; color: var(--success); }
.ai-chat-messages {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 220px;
}
.chat-bubble {
  padding: 12px 16px;
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  line-height: 1.5;
  max-width: 85%;
  animation: bubble-in 0.4s ease-out;
}
.chat-bubble.user {
  background: var(--gradient-primary);
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}
.chat-bubble.ai {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}
@keyframes bubble-in {
  from { opacity: 0; transform: translateY(10px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ============================
   SHOWCASE (Steps)
   ============================ */
.showcase {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  transition: var(--transition);
  position: relative;
}
.step-card:hover {
  border-color: rgba(59,130,246,0.2);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.step-num {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  line-height: 1;
}
.step-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================
   PRICING
   ============================ */
.pricing {
  padding: 100px 0;
  background: var(--bg-secondary);
  position: relative;
  z-index: 1;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: start;
}
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 32px 24px;
  transition: var(--transition);
  position: relative;
  text-align: center;
}
.pricing-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.12);
}
.pricing-card.popular {
  border-color: rgba(59,130,246,0.4);
  background: linear-gradient(180deg, rgba(59,130,246,0.08), var(--bg-card));
  box-shadow: 0 0 40px rgba(59,130,246,0.1);
  transform: scale(1.04);
}
.pricing-card.popular:hover { transform: scale(1.04) translateY(-4px); }
.pricing-badge {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #fff;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}
.pricing-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.pricing-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.pricing-price { margin-bottom: 24px; }
.price-amount {
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}
.price-period {
  font-size: 0.9rem;
  color: var(--text-muted);
}
.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 28px;
}
.pricing-features li {
  padding: 8px 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  padding-left: 24px;
  position: relative;
}
.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}
.pricing-cta { width: 100%; justify-content: center; }

/* ============================
   ENTERPRISE
   ============================ */
.enterprise {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}
.tag-enterprise {
  color: #fbbf24;
  background: rgba(245,158,11,0.1);
  border-color: rgba(245,158,11,0.2);
}
.enterprise-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
}
.enterprise-benefits {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.enterprise-benefit-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.enterprise-benefit-card:hover {
  border-color: rgba(59,130,246,0.2);
  transform: translateX(4px);
  box-shadow: var(--shadow-glow);
}
.benefit-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
.enterprise-benefit-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.enterprise-benefit-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Enterprise CTA Card */
.enterprise-cta-card {
  position: sticky;
  top: 100px;
}
.enterprise-cta-inner {
  background: linear-gradient(160deg, rgba(59,130,246,0.1), rgba(139,92,246,0.1));
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  text-align: center;
}
.enterprise-cta-badge {
  display: inline-block;
  padding: 4px 14px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #fbbf24;
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}
.enterprise-cta-inner h3 {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 12px;
}
.enterprise-cta-inner > p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.enterprise-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.enterprise-stat {
  padding: 12px 8px;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}
.enterprise-stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.enterprise-stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.enterprise-includes {
  list-style: none;
  text-align: left;
  margin-bottom: 28px;
}
.enterprise-includes li {
  padding: 6px 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-left: 24px;
  position: relative;
}
.enterprise-includes li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}

.enterprise-cta-btn { width: 100%; justify-content: center; }
.enterprise-cta-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 12px;
}

/* ============================
   DOWNLOAD
   ============================ */
.download {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}
.download-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.download-content h2 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 16px;
}
.download-content p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.7;
}
.download-stores {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.store-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.store-badge:hover {
  border-color: rgba(255,255,255,0.2);
  background: var(--bg-glass-hover);
  transform: translateY(-2px);
}
.store-icon { font-size: 1.5rem; }
.store-small { display: block; font-size: 0.7rem; color: var(--text-muted); }
.store-large { display: block; font-size: 1rem; font-weight: 700; }
.download-qr {
  display: flex;
  align-items: center;
  gap: 16px;
}
.download-qr img {
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}
.download-qr p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* Download Visual */
.download-visual { display: flex; justify-content: center; }
.download-phone {
  width: 220px;
  height: 440px;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  border-radius: 36px;
  border: 2px solid rgba(255,255,255,0.1);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.download-phone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============================
   TESTIMONIALS
   ============================ */
.testimonials {
  padding: 100px 0;
  background: var(--bg-secondary);
  position: relative;
  z-index: 1;
}
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 32px;
  transition: var(--transition);
}
.testimonial-card:hover {
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-4px);
}
.testimonial-stars {
  font-size: 1rem;
  color: #fbbf24;
  margin-bottom: 16px;
  letter-spacing: 2px;
}
.testimonial-card > p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
}
.testimonial-author strong {
  display: block;
  font-size: 0.9rem;
}
.testimonial-author span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================
   CTA
   ============================ */
.cta {
  padding: 100px 0;
  position: relative;
  z-index: 1;
  background: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(139,92,246,0.15));
}
.cta-inner {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
}
.cta-inner p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ============================
   FOOTER
   ============================ */
.footer {
  padding: 60px 0 0;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  position: relative;
  z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 16px 0 20px;
  line-height: 1.6;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
}
.footer-social a:hover {
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.2);
  background: var(--bg-glass-hover);
}
.footer-column h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.footer-column a {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 6px 0;
}
.footer-column a:hover { color: var(--text-primary); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  border-top: 1px solid var(--border-color);
}
.footer-bottom p { font-size: 0.85rem; color: var(--text-muted); }
.footer-legal { display: flex; gap: 8px 24px; flex-wrap: wrap; justify-content: flex-end; }
.footer-legal a { font-size: 0.85rem; color: var(--text-muted); }
.footer-legal a:hover { color: var(--text-primary); }

/* ============================
   SCROLL TO TOP
   ============================ */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 100;
  box-shadow: var(--shadow-md);
}
.scroll-top.visible {
  opacity: 1;
  transform: translateY(0);
}
.scroll-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 25px rgba(59,130,246,0.4);
}

/* ============================
   ANIMATIONS
   ============================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================
   MAP & PLANNING SECTION
   ============================ */
.map-section {
  padding: 100px 0;
  background: var(--bg-primary);
}
.map-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.map-feature-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}
.map-feature-card:hover {
  border-color: rgba(59,130,246,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.map-feature-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}
.map-feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.map-feature-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.section-tag.tag-map {
  background: linear-gradient(135deg, rgba(16,185,129,0.15), rgba(59,130,246,0.15));
  color: #10b981;
}

/* ============================
   WHY LANDAIA / COMPARISON
   ============================ */
.why-section {
  padding: 100px 0;
  background: var(--bg-secondary);
}
.comparison-table {
  max-width: 800px;
  margin: 48px auto 0;
  overflow-x: auto;
}
.comparison-table table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
}
.comparison-table thead {
  background: rgba(59,130,246,0.1);
}
.comparison-table th {
  padding: 16px 20px;
  font-size: 0.9rem;
  font-weight: 700;
  text-align: left;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
}
.comparison-table td {
  padding: 14px 20px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.comparison-table tbody tr:last-child td {
  border-bottom: none;
}
.comparison-table tbody tr:hover {
  background: rgba(59,130,246,0.05);
}
.comparison-table .highlight-col {
  color: #3b82f6;
  font-weight: 600;
}
.comparison-table thead .highlight-col {
  background: rgba(59,130,246,0.2);
  color: #60a5fa;
}

/* ============================
   CHAT THINKING INDICATOR
   ============================ */
.chat-thinking {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  margin: 4px 0;
  opacity: 0.8;
}
.thinking-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3b82f6;
  animation: thinkingPulse 1.4s ease-in-out infinite;
}
.thinking-dot:nth-child(2) { animation-delay: 0.2s; }
.thinking-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes thinkingPulse {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1.1); }
}
.thinking-label {
  font-size: 0.75rem;
  color: #60a5fa;
  font-style: italic;
  margin-left: 4px;
}

/* ============================
   EXTRA GRADIENT COLORS
   ============================ */
.gradient-green {
  background: linear-gradient(135deg, #10b981, #059669);
}
.gradient-teal {
  background: linear-gradient(135deg, #14b8a6, #0d9488);
}
.gradient-lime {
  background: linear-gradient(135deg, #84cc16, #65a30d);
}

/* ============================
   ADDITIONAL CARD TAGS
   ============================ */
.card-tag.tag-smart {
  background: rgba(16,185,129,0.15);
  color: #10b981;
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero-description { margin: 0 auto 32px; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { display: none; }

  .features-bento { grid-template-columns: repeat(2, 1fr); }
  .bento-large { grid-column: span 1; }

  .ai-inner { grid-template-columns: 1fr; gap: 40px; }
  .ai-content { text-align: center; }
  .ai-features { align-items: center; }

  .steps-grid { grid-template-columns: repeat(3, 1fr); }

  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-card.popular { transform: scale(1); }
  .pricing-card.popular:hover { transform: translateY(-4px); }

  .map-features-grid { grid-template-columns: repeat(2, 1fr); }

  .enterprise-grid { grid-template-columns: 1fr; }
  .enterprise-cta-card { position: static; }

  .download-inner { grid-template-columns: 1fr; text-align: center; }
  .download-stores { justify-content: center; }
  .download-qr { justify-content: center; }
  .download-visual { display: none; }

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

@media (max-width: 768px) {
  .nav-menu, .nav-cta { display: none; }
  .mobile-menu-btn { display: flex; }

  .hero { padding: 100px 0 60px; min-height: auto; }
  .hero-title { font-size: 2.2rem; }
  .hero-stats { flex-direction: column; gap: 16px; align-items: center; }
  .hero-cta { flex-direction: column; align-items: center; }

  .features-bento { grid-template-columns: 1fr; }
  .map-features-grid { grid-template-columns: 1fr; }
  .comparison-table th, .comparison-table td { padding: 10px 12px; font-size: 0.8rem; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }

  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }

  .testimonials-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }

  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-social { justify-content: center; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .footer-legal { flex-wrap: wrap; justify-content: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 1.8rem; }
  .section-title { font-size: 1.6rem; }
  .bento-card { padding: 20px; }
  .steps-grid { grid-template-columns: 1fr; }
  .step-card { padding: 24px 20px; }
  .pricing-card { padding: 24px 20px; }
  .testimonial-card { padding: 24px; }
}

/* ============================================
   Bổ sung 08/09/2026 — chuẩn hoá nội dung theo thực tế
   ============================================ */

/* Câu hỏi thường gặp — chuyển từ khối <style> trong index.html ra đây */
.faq-section { padding: 80px 0; background: var(--bg-secondary); }
.faq-section .section-title { text-align: center; margin-bottom: 40px; }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  padding: 0 22px;
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 0;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--primary-light);
  font-size: 26px;
  line-height: 1;
  transition: transform .2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { color: var(--text-secondary); line-height: 1.7; padding: 0 0 20px; margin: 0; }

/* Tách nền mục bản đồ khỏi mục tác tử ngay phía trên (hai mục cùng nền trông phẳng) */
#map-planning { background: var(--bg-secondary); }

/* Số liệu lớn trong hero: giữ nguyên một dòng và canh cột chữ số */
.hero-stat-value {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* Ghi chú đặt dưới các khối nội dung — chữ nhỏ, không tranh chỗ với nội dung chính */
.ai-demo-note,
.download-note,
.pricing-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
}
.ai-demo-note { margin-top: 14px; text-align: center; }
.download-note { margin-top: 18px; }
.pricing-note {
  max-width: 760px;
  margin: 36px auto 0;
  text-align: center;
}
.pricing-note strong { color: var(--text-secondary); }

/* Địa chỉ trong chân trang: cùng hàng với các liên kết nhưng không phải liên kết */
.footer-address {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 6px 0;
}
.enterprise-cta-note a { color: inherit; text-decoration: underline; }
.footer-bottom a { color: inherit; text-decoration: underline; }

/* Bàn phím phải thấy được mình đang ở đâu */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Tôn trọng thiết lập giảm chuyển động của người dùng */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  #particles-canvas { display: none; }
  .fade-in { opacity: 1 !important; transform: none !important; }
}

/* Thông tin pháp nhân ở chân trang (NĐ 52/2013 Điều 29): mỗi mục một dòng, không nhồi một hàng */
.footer-copy { max-width: 720px; }
.footer-phap-nhan {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--text-muted);
}
.footer-phap-nhan li + li { margin-top: 2px; }
.footer-phap-nhan strong { font-weight: 600; color: var(--text-secondary); }
.footer-bottom { align-items: flex-start; }