/* ==========================================================================
   Design System — Du Học Mỹ (Study Abroad USA)
   Modern, premium, glassmorphism, responsive
   ========================================================================== */

/* ---------- Google Fonts (Vietnamese subset) ---------- */
@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,500;1,600&family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@400;500;600;700;800&subset=vietnamese,latin&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Primary palette */
  --clr-primary-50: #eef2ff;
  --clr-primary-100: #e0e7ff;
  --clr-primary-200: #c7d2fe;
  --clr-primary-300: #a5b4fc;
  --clr-primary-400: #818cf8;
  --clr-primary-500: #6366f1;
  --clr-primary-600: #4f46e5;
  --clr-primary-700: #4338ca;

  /* Accent – warm gold */
  --clr-accent-400: #fbbf24;
  --clr-accent-500: #f59e0b;
  --clr-accent-600: #d97706;

  /* Success / Warning / Error */
  --clr-success: #22c55e;
  --clr-warning: #f59e0b;
  --clr-error: #ef4444;

  /* Neutral */
  --clr-gray-50: #f8fafc;
  --clr-gray-100: #f1f5f9;
  --clr-gray-200: #e2e8f0;
  --clr-gray-300: #cbd5e1;
  --clr-gray-400: #94a3b8;
  --clr-gray-500: #64748b;
  --clr-gray-600: #475569;
  --clr-gray-700: #334155;
  --clr-gray-800: #1e293b;
  --clr-gray-900: #0f172a;
  --clr-gray-950: #020617;

  /* Surface */
  --surface-bg: #ffffff;
  --surface-card: rgba(255, 255, 255, 0.7);
  --surface-glass: rgba(255, 255, 255, 0.15);

  /* Typography */
  --font-display: 'Outfit', 'Be Vietnam Pro', sans-serif;
  --font-body: 'Be Vietnam Pro', 'Inter', sans-serif;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);

  /* Transitions */
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;

  /* Layout */
  --container-max: 1280px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + var(--space-4));
  -webkit-text-size-adjust: 100%;
  font-variant-numeric: tabular-nums;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--clr-gray-800);
  background-color: var(--surface-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--clr-primary-600);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--clr-primary-700);
}

a:focus-visible {
  outline: 2px solid var(--clr-primary-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--clr-primary-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ---------- Skip Link ---------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 9999;
  padding: var(--space-2) var(--space-4);
  background: var(--clr-primary-600);
  color: #fff;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: top var(--duration-fast) var(--ease-out);
}

.skip-link:focus {
  top: var(--space-2);
}

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* ---------- Section Utilities ---------- */
.section {
  padding-block: var(--space-20);
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4);
  background: var(--clr-primary-50);
  color: var(--clr-primary-600);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--clr-gray-900);
  text-wrap: balance;
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--clr-gray-500);
  max-width: 640px;
  margin-inline: auto;
  text-wrap: pretty;
}

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  inset-inline: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              backdrop-filter var(--duration-normal) var(--ease-out);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  color: #fff;
  text-decoration: none;
  transition: color var(--duration-normal) var(--ease-out);
}

.navbar.scrolled .nav-logo {
  color: var(--clr-gray-900);
}

.nav-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--clr-primary-500), var(--clr-primary-700));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-links a {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  transition: color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.navbar.scrolled .nav-links a {
  color: var(--clr-gray-600);
}

.navbar.scrolled .nav-links a:hover {
  color: var(--clr-primary-600);
  background: var(--clr-primary-50);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-6);
  background: linear-gradient(135deg, var(--clr-primary-500), var(--clr-primary-700));
  color: #fff !important;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9375rem;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
  transition: transform var(--duration-fast) var(--ease-spring),
              box-shadow var(--duration-fast) var(--ease-out);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
  color: #fff !important;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-normal) var(--ease-out);
}

.navbar.scrolled .nav-toggle span {
  background: var(--clr-gray-700);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-height);
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 40%, #312e81 100%);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 80%, rgba(99, 102, 241, 0.2) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(139, 92, 246, 0.15) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 50% 50%, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

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

.hero-particles .particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  animation: float-up 8s infinite;
}

@keyframes float-up {
  0% { opacity: 0; transform: translateY(100vh) scale(0); }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  color: #fff;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--space-6);
  animation: fade-in-up 0.8s var(--ease-out) 0.2s both;
}

.hero-badge .badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--clr-success);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--space-6);
  text-wrap: balance;
  animation: fade-in-up 0.8s var(--ease-out) 0.4s both;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--clr-accent-400), var(--clr-accent-500));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.125rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.7);
  max-width: 520px;
  margin-bottom: var(--space-8);
  animation: fade-in-up 0.8s var(--ease-out) 0.6s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  animation: fade-in-up 0.8s var(--ease-out) 0.8s both;
}

.hero-stats {
  display: flex;
  gap: var(--space-10);
  margin-top: var(--space-12);
  animation: fade-in-up 0.8s var(--ease-out) 1s both;
}

.hero-stat {
  text-align: center;
}

.hero-stat-value {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  background: linear-gradient(135deg, #fff, rgba(255, 255, 255, 0.8));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-stat-label {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Hero image */
.hero-image {
  position: relative;
  animation: fade-in-up 1s var(--ease-out) 0.6s both;
}

.hero-image img {
  border-radius: var(--radius-3xl);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.4);
  width: 100%;
  height: auto;
}

.hero-image::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: var(--radius-3xl);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.3), rgba(245, 158, 11, 0.3));
  z-index: -1;
  filter: blur(20px);
}

/* Floating cards on hero image */
.floating-card {
  position: absolute;
  padding: var(--space-3) var(--space-5);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-gray-800);
  animation: float 4s ease-in-out infinite;
}

.floating-card:nth-child(2) {
  top: 15%;
  right: -10%;
  animation-delay: 0.5s;
}

.floating-card:nth-child(3) {
  bottom: 20%;
  left: -8%;
  animation-delay: 1s;
}

.floating-card .card-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.card-icon.purple {
  background: var(--clr-primary-100);
  color: var(--clr-primary-600);
}

.card-icon.gold {
  background: #fef3c7;
  color: var(--clr-accent-600);
}

.card-icon.green {
  background: #dcfce7;
  color: var(--clr-success);
}

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

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-spring),
              box-shadow var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--clr-primary-500), var(--clr-primary-700));
  color: #fff;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.5);
}

.btn-outline {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: #fff;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-white {
  background: #fff;
  color: var(--clr-primary-600);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  box-shadow: var(--shadow-lg);
}

.btn-accent {
  background: linear-gradient(135deg, var(--clr-accent-400), var(--clr-accent-600));
  color: var(--clr-gray-900);
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
}

/* ---------- About Section ---------- */
.about {
  background: var(--clr-gray-50);
}

.about .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-2xl);
}

.about-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.about-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), transparent);
  z-index: 1;
}

.about-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--clr-gray-900);
  margin-bottom: var(--space-6);
  text-wrap: balance;
}

.about-content p {
  color: var(--clr-gray-600);
  margin-bottom: var(--space-6);
  font-size: 1.05rem;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.about-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-fast) var(--ease-spring),
              box-shadow var(--duration-fast) var(--ease-out);
}

.about-feature:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.about-feature-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  background: var(--clr-primary-50);
  color: var(--clr-primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.about-feature h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--clr-gray-900);
  margin-bottom: var(--space-1);
}

.about-feature p {
  font-size: 0.8125rem;
  color: var(--clr-gray-500);
  margin-bottom: 0;
}

/* ---------- Target Audience ---------- */
.audience {
  background: linear-gradient(180deg, #fff 0%, var(--clr-gray-50) 100%);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.audience-card {
  position: relative;
  padding: var(--space-8) var(--space-6);
  background: #fff;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--clr-gray-100);
  overflow: hidden;
  transition: transform var(--duration-normal) var(--ease-spring),
              box-shadow var(--duration-normal) var(--ease-out);
}

.audience-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--clr-primary-400), var(--clr-primary-600));
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.audience-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

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

.audience-card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--clr-primary-50), var(--clr-primary-100));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-5);
}

.audience-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-gray-900);
  margin-bottom: var(--space-3);
}

.audience-card ul {
  list-style: none;
}

.audience-card li {
  position: relative;
  padding-left: var(--space-6);
  padding-block: var(--space-1);
  color: var(--clr-gray-600);
  font-size: 0.9375rem;
}

.audience-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--clr-primary-500);
  font-weight: 700;
}

/* ---------- Risks Section ---------- */
.risks {
  background: linear-gradient(135deg, var(--clr-gray-900), #1e1b4b);
  color: #fff;
}

.risks .section-title {
  color: #fff;
}

.risks .section-subtitle {
  color: rgba(255, 255, 255, 0.6);
}

.risks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.risk-card {
  padding: var(--space-6);
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-2xl);
  transition: transform var(--duration-normal) var(--ease-spring),
              background var(--duration-normal) var(--ease-out);
}

.risk-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.1);
}

.risk-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: rgba(239, 68, 68, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: var(--space-4);
}

.risk-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: var(--space-2);
}

.risk-card p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

/* ---------- Services / Packages ---------- */
.packages {
  background: var(--clr-gray-50);
  overflow: hidden;
}

.packages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  align-items: start;
}

.package-card {
  position: relative;
  padding: var(--space-8) var(--space-6);
  background: #fff;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  border: 2px solid transparent;
  transition: transform var(--duration-normal) var(--ease-spring),
              box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
}

.package-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.package-card.featured {
  border-color: var(--clr-primary-400);
  background: linear-gradient(180deg, var(--clr-primary-50) 0%, #fff 20%);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.package-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-1) var(--space-5);
  background: linear-gradient(135deg, var(--clr-primary-500), var(--clr-primary-700));
  color: #fff;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}

.package-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-5);
}

.package-card:nth-child(1) .package-icon {
  background: #dcfce7;
}

.package-card:nth-child(2) .package-icon {
  background: var(--clr-primary-100);
}

.package-card:nth-child(3) .package-icon {
  background: #fef3c7;
}

.package-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--clr-gray-900);
  margin-bottom: var(--space-2);
}

.package-price {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--clr-primary-600);
  margin-bottom: var(--space-2);
}

.package-price span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-gray-500);
}

.package-desc {
  color: var(--clr-gray-500);
  font-size: 0.9375rem;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--clr-gray-200);
}

.package-features {
  list-style: none;
  margin-bottom: var(--space-8);
}

.package-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding-block: var(--space-2);
  color: var(--clr-gray-700);
  font-size: 0.9375rem;
}

.package-features .check {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--clr-primary-50);
  color: var(--clr-primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  margin-top: 2px;
}

.package-card .btn {
  width: 100%;
  justify-content: center;
}

/* ---------- Process / Timeline ---------- */
.process {
  background: #fff;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin-inline: auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-primary-200), var(--clr-primary-400), var(--clr-primary-200));
}

.timeline-item {
  display: flex;
  gap: var(--space-8);
  padding-bottom: var(--space-10);
  position: relative;
}

.timeline-marker {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-primary-500), var(--clr-primary-700));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
  z-index: 1;
}

.timeline-content {
  padding-top: var(--space-3);
}

.timeline-content h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--clr-gray-900);
  margin-bottom: var(--space-2);
}

.timeline-content p {
  color: var(--clr-gray-500);
  font-size: 0.95rem;
}

/* ---------- Housing / Upgrade ---------- */
.housing {
  background: linear-gradient(180deg, var(--clr-gray-50), #fff);
}

.housing .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.housing-image {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-2xl);
}

.housing-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.housing-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--clr-gray-900);
  margin-bottom: var(--space-6);
}

.housing-amenities {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.amenity {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--clr-gray-700);
  transition: transform var(--duration-fast) var(--ease-spring);
}

.amenity:hover {
  transform: translateY(-2px);
}

.amenity-icon {
  font-size: 1.2rem;
}

/* ---------- Testimonial / CTA ---------- */
.cta {
  position: relative;
  background: linear-gradient(135deg, var(--clr-primary-600), var(--clr-primary-700), #1e1b4b);
  overflow: hidden;
  text-align: center;
  padding-block: var(--space-24);
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 80% at 20% 100%, rgba(245, 158, 11, 0.15), transparent),
    radial-gradient(ellipse 50% 80% at 80% 0%, rgba(139, 92, 246, 0.15), transparent);
  pointer-events: none;
}

.cta .container {
  position: relative;
  z-index: 1;
}

.cta h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 900;
  color: #fff;
  margin-bottom: var(--space-4);
  text-wrap: balance;
}

.cta p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: var(--space-10);
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--clr-gray-950);
  color: rgba(255, 255, 255, 0.7);
  padding-top: var(--space-16);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand {
  max-width: 320px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: #fff;
  margin-bottom: var(--space-4);
}

.footer-brand p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.5);
}

.footer-col h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9375rem;
  color: #fff;
  margin-bottom: var(--space-5);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: var(--space-3);
}

.footer-col a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9375rem;
  transition: color var(--duration-fast) var(--ease-out);
}

.footer-col a:hover {
  color: var(--clr-primary-300);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-6);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.35);
}

.footer-socials {
  display: flex;
  gap: var(--space-3);
}

.footer-socials a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 1rem;
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.footer-socials a:hover {
  background: var(--clr-primary-600);
  color: #fff;
}

/* ---------- Scroll Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

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

/* ---------- Contact Form ---------- */
.contact {
  background: #fff;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}

.contact-info {
  padding: var(--space-8);
  background: linear-gradient(135deg, var(--clr-primary-600), var(--clr-primary-700));
  border-radius: var(--radius-2xl);
  color: #fff;
}

.contact-info h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: var(--space-4);
}

.contact-info p {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-8);
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-3);
}

.contact-detail-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.contact-detail-text {
  font-size: 0.95rem;
}

.contact-detail-text strong {
  display: block;
  font-weight: 600;
  color: #fff;
}

.contact-detail-text span {
  color: rgba(255, 255, 255, 0.6);
}

.contact-form {
  padding: var(--space-8);
  background: var(--clr-gray-50);
  border-radius: var(--radius-2xl);
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-gray-700);
  margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--clr-gray-200);
  border-radius: var(--radius-lg);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--clr-gray-800);
  background: #fff;
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--clr-primary-400);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
  outline: none;
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-desc {
    margin-inline: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-image {
    max-width: 500px;
    margin-inline: auto;
  }

  .floating-card:nth-child(2) {
    right: 0;
  }

  .floating-card:nth-child(3) {
    left: 0;
  }

  .about .container,
  .housing .container {
    grid-template-columns: 1fr;
  }

  .about-image img,
  .housing-image img {
    height: 350px;
  }

  .audience-grid,
  .risks-grid,
  .packages-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin-inline: auto;
  }

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

  .contact-wrapper {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .section {
    padding-block: var(--space-12);
  }

  .section-header {
    margin-bottom: var(--space-10);
  }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    inset-inline: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    padding: var(--space-6);
    gap: var(--space-1);
    z-index: 999;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: var(--space-4);
    font-size: 1.05rem;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-title {
    font-size: clamp(2rem, 7vw, 3rem);
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: var(--space-6);
  }

  .about-features,
  .housing-amenities {
    grid-template-columns: 1fr;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-marker {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .cta h2 {
    font-size: clamp(1.75rem, 6vw, 2.5rem);
  }
}

/* ---------- Reduced Motion ---------- */
@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;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}