/* ========================================================
   NHÀ GỌN - LANDING PAGE STYLESHEET
   Clean, Modern, Aesthetic, High-Conversion Design
   ======================================================== */

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --accent-green: #10b981;
  --accent-green-dark: #059669;
  --accent-orange: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-purple: #8b5cf6;
  --navy-dark: #0f172a;
  --navy-slate: #1e293b;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --bg-gradient: linear-gradient(135deg, #f0fdf4 0%, #eff6ff 50%, #faf5ff 100%);
  --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  --hover-shadow: 0 20px 35px -5px rgba(37, 99, 235, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

html, body {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
  position: relative;
}

body {
  background-color: #f8fafc;
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

/* Glassmorphism effects */
.glass-nav {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}

.glass-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(226, 232, 240, 0.9);
}

.glass-badge {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.9);
}

/* Gradients */
.gradient-text {
  background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 40%, #059669 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-green-blue {
  background: linear-gradient(135deg, #10b981 0%, #2563eb 100%);
}

.hero-glow {
  position: absolute;
  width: min(600px, 90vw);
  height: min(600px, 90vw);
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, rgba(16, 185, 129, 0.12) 40%, transparent 70%);
  filter: blur(60px);
  z-index: 0;
  pointer-events: none;
}

.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* Animations */
@keyframes floatSlow {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

.animate-float {
  animation: floatSlow 5s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 0.9; transform: scale(1.03); }
}

.animate-pulse-glow {
  animation: pulseGlow 4s ease-in-out infinite;
}

/* Phone Mockup Frame */
.mockup-frame {
  position: relative;
  border-radius: 42px;
  background: #111827;
  padding: 12px;
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.15);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.mockup-frame:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 32px 64px -12px rgba(37, 99, 235, 0.25);
}

.mockup-screen {
  border-radius: 32px;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

/* Interactive Tabs */
.feature-tab-btn.active {
  background: #ffffff;
  color: #2563eb;
  border-color: #3b82f6;
  box-shadow: 0 10px 20px -3px rgba(37, 99, 235, 0.15);
}

.feature-tab-btn.active .tab-icon {
  background: #2563eb;
  color: #ffffff;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Lightbox Modal */
.lightbox-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.lightbox-modal.active {
  display: flex;
  opacity: 1;
}

/* Badge tags */
.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 9999px;
}