/* ================================================
   Chii Landing Page — Styles
   Font: Be Vietnam Pro (Vietnamese-optimized)
   ================================================ */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Subtle grain texture for premium feel */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.018;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* ---- Layout ---- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

section {
  padding: var(--section-padding);
}

/* ---- Section Header ---- */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-16);
}

.section-tag {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-primary-500);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
  padding: var(--space-1) var(--space-4);
  background: var(--color-primary-50);
  border-radius: var(--border-radius-full);
  border: 1px solid var(--color-primary-200);
}

[data-theme="dark"] .section-tag {
  background: rgba(20, 184, 166, 0.1);
  border-color: rgba(20, 184, 166, 0.2);
}

.section-header h2 {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: inherit;
  font-weight: var(--font-semibold);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-normal);
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  border: none;
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn-sm {
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-5);
  height: 40px;
}

.btn-lg {
  font-size: var(--text-base);
  padding: var(--space-3) var(--space-8);
  height: 52px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  color: var(--text-on-primary);
  box-shadow: 0 2px 8px rgba(20, 184, 166, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 4px 16px rgba(20, 184, 166, 0.4);
  background: linear-gradient(135deg, var(--color-primary-400), var(--color-primary-500));
}

.btn-outline {
  background: transparent;
  color: var(--color-primary-500);
  border: 2px solid var(--color-primary-500);
}

.btn-outline:hover {
  background: var(--color-primary-50);
}

[data-theme="dark"] .btn-outline:hover {
  background: rgba(20, 184, 166, 0.1);
}

.btn-glass {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-glass:hover {
  background: var(--bg-card-hover);
  border-color: var(--color-primary-300);
}

.btn-white {
  background: #ffffff;
  color: var(--color-primary-700);
  font-weight: var(--font-bold);
}

.btn-white:hover {
  background: #f0fdfa;
  box-shadow: 0 4px 16px rgba(255, 255, 255, 0.3);
}

.btn-ghost-white {
  background: transparent;
  color: #ffffff;
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-ghost-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-block {
  width: 100%;
}

/* ========================================
   NAVIGATION
   ======================================== */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: transparent;
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  z-index: 10;
}

.nav-logo-icon {
  border-radius: var(--border-radius-sm);
}

.nav-logo-text {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary-500);
  border-radius: 1px;
  transition: width var(--transition-normal);
}

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  z-index: 10;
}

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Show/hide sun/moon based on theme */
[data-theme="light"] .icon-sun,
:root:not([data-theme="dark"]) .icon-sun { display: none; }
[data-theme="light"] .icon-moon,
:root:not([data-theme="dark"]) .icon-moon { display: block; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-6);
  flex-direction: column;
  gap: var(--space-4);
  z-index: 999;
  box-shadow: var(--shadow-lg);
  transform: translateY(-10px);
  opacity: 0;
  transition: all 0.3s ease;
  pointer-events: none;
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu a {
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-color-subtle);
  transition: color var(--transition-fast);
}

.mobile-menu a:hover {
  color: var(--color-primary-500);
}

.mobile-menu .btn {
  margin-top: var(--space-2);
}

/* ========================================
   HERO
   ======================================== */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-height) + var(--space-10));
  padding-bottom: var(--space-16);
  background: var(--bg-hero);
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bg-hero-glow);
  pointer-events: none;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-12);
}

.hero-content {
  flex: 1;
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-primary-600);
  background: var(--color-primary-50);
  border: 1px solid var(--color-primary-200);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--border-radius-full);
  margin-bottom: var(--space-6);
}

[data-theme="dark"] .hero-badge {
  background: rgba(20, 184, 166, 0.1);
  border-color: rgba(20, 184, 166, 0.25);
  color: var(--color-primary-400);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary-500);
  animation: glow-pulse 2s ease-in-out infinite;
  box-shadow: 0 0 6px var(--color-primary-400);
}

@keyframes glow-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.5; }
}

#hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: var(--font-extrabold);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
  max-width: 480px;
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}

/* Trust bar */
.hero-trust {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.hero-trust-avatars {
  display: flex;
}

.trust-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  color: #fff;
  border: 2px solid var(--bg-primary);
  margin-left: -8px;
}

.trust-avatar:first-child {
  margin-left: 0;
}

.hero-trust-text {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}

.hero-trust-text strong {
  color: var(--text-primary);
}

/* Mascot */
.hero-mascot {
  flex-shrink: 0;
  width: 440px;
}

.hero-mascot img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
}

/* ========================================
   FEATURES
   ======================================== */
#features {
  background: var(--bg-secondary);
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-200);
}

[data-theme="dark"] .feature-card:hover {
  border-color: var(--color-primary-800);
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.feature-icon img {
  width: 44px;
  height: 44px;
}

.feature-icon--teal   { background: linear-gradient(135deg, #f0fdfa, #ccfbf1); }
.feature-icon--amber  { background: linear-gradient(135deg, #fffbeb, #fef3c7); }
.feature-icon--blue   { background: linear-gradient(135deg, #eff6ff, #dbeafe); }
.feature-icon--green  { background: linear-gradient(135deg, #f0fdf4, #dcfce7); }
.feature-icon--violet { background: linear-gradient(135deg, #f5f3ff, #ede9fe); }
.feature-icon--rose   { background: linear-gradient(135deg, #fff1f2, #ffe4e6); }

[data-theme="dark"] .feature-icon--teal   { background: linear-gradient(135deg, rgba(20,184,166,0.15), rgba(20,184,166,0.08)); }
[data-theme="dark"] .feature-icon--amber  { background: linear-gradient(135deg, rgba(255,184,48,0.15), rgba(255,184,48,0.08)); }
[data-theme="dark"] .feature-icon--blue   { background: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(59,130,246,0.08)); }
[data-theme="dark"] .feature-icon--green  { background: linear-gradient(135deg, rgba(34,197,94,0.15), rgba(34,197,94,0.08)); }
[data-theme="dark"] .feature-icon--violet { background: linear-gradient(135deg, rgba(139,92,246,0.15), rgba(139,92,246,0.08)); }
[data-theme="dark"] .feature-icon--rose   { background: linear-gradient(135deg, rgba(244,63,94,0.15), rgba(244,63,94,0.08)); }

.feature-card h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ========================================
   HOW IT WORKS
   ======================================== */
#how-it-works {
  background: var(--bg-primary);
}

.steps-container {
  display: flex;
  align-items: center;
  gap: var(--space-16);
}

.steps-grid {
  flex: 1;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.step-card {
  flex: 1;
  text-align: center;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  color: #fff;
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  box-shadow: 0 4px 12px rgba(20, 184, 166, 0.3);
}

.step-content h3 {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
}

.step-content p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.step-connector {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  padding-top: 12px;
  color: var(--color-primary-400);
}

.steps-mascot {
  flex-shrink: 0;
  width: 280px;
}

.steps-mascot img {
  width: 100%;
  filter: drop-shadow(0 16px 32px rgba(0, 0, 0, 0.12));
}

/* ========================================
   PRICING
   ======================================== */
#pricing {
  background: var(--bg-secondary);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
  max-width: 820px;
  margin: 0 auto;
  align-items: start;
}

.pricing-card {
  border-radius: var(--border-radius-xl);
  padding: var(--space-10);
  position: relative;
  overflow: hidden;
}

.pricing-card--free {
  background: var(--card-free-bg);
  border: 1px solid var(--card-free-border);
}

.pricing-card--premium {
  background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-500), #2dd4bf);
  color: #ffffff;
  box-shadow: var(--card-premium-glow);
  animation: glow-pulse 4s ease-in-out infinite;
  transform: scale(1.03);
}

.pricing-badge {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--border-radius-full);
  border: 1px solid rgba(255, 255, 255, 0.3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-header {
  margin-bottom: var(--space-8);
}

.pricing-header h3 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-3);
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.price-amount {
  font-size: var(--text-4xl);
  font-weight: var(--font-extrabold);
  letter-spacing: -0.03em;
}

.price-period {
  font-size: var(--text-sm);
  opacity: 0.7;
}

.pricing-desc {
  font-size: var(--text-sm);
  opacity: 0.7;
}

/* Feature List */
.pricing-features {
  margin-bottom: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
}

.pricing-feature .icon-check {
  flex-shrink: 0;
  color: var(--color-primary-500);
}

.pricing-card--premium .pricing-feature .icon-check {
  color: #ffffff;
}

.pricing-feature .icon-cross {
  flex-shrink: 0;
  color: var(--text-tertiary);
}

.pricing-feature.disabled {
  opacity: 0.5;
}

.pricing-feature.disabled span {
  text-decoration: line-through;
  text-decoration-color: var(--text-tertiary);
}

.feature-limit {
  margin-left: auto;
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-accent-yellow);
  background: rgba(255, 184, 48, 0.1);
  padding: 2px 8px;
  border-radius: var(--border-radius-full);
  white-space: nowrap;
}

.pricing-card--free .feature-limit {
  color: var(--color-accent-yellow);
}

.feature-value {
  margin-left: auto;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  background: rgba(255, 255, 255, 0.2);
  padding: 2px 8px;
  border-radius: var(--border-radius-full);
  white-space: nowrap;
}

/* ========================================
   TESTIMONIALS
   ======================================== */
#testimonials {
  background: var(--bg-primary);
}

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

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.testimonial-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.testimonial-stars {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-4);
}

.testimonial-card blockquote {
  flex: 1;
}

.testimonial-card blockquote p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  color: #fff;
  flex-shrink: 0;
  object-fit: cover;
}

.testimonial-author strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
}

.testimonial-author span {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

/* ========================================
   STATS
   ======================================== */
#stats {
  background: linear-gradient(135deg, var(--color-primary-700), var(--color-primary-600), var(--color-primary-500));
  color: #ffffff;
  padding: var(--space-16) var(--space-6);
}

.stats-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
}

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

.stat-number {
  font-size: var(--text-5xl);
  font-weight: var(--font-extrabold);
  letter-spacing: -0.03em;
  display: inline;
}

.stat-suffix {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  opacity: 0.8;
}

.stat-label {
  display: block;
  font-size: var(--text-sm);
  opacity: 0.75;
  margin-top: var(--space-2);
  font-weight: var(--font-medium);
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255, 255, 255, 0.2);
}

/* ========================================
   FAQ
   ======================================== */
#faq {
  background: var(--bg-primary);
}

.faq-container {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item.open {
  border-color: var(--color-primary-300);
  box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .faq-item.open {
  border-color: var(--color-primary-800);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  text-align: left;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-primary-500);
}

.faq-chevron {
  flex-shrink: 0;
  color: var(--text-tertiary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), padding 0.4s ease;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 var(--space-6) var(--space-6);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ========================================
   CTA BANNER
   ======================================== */
#cta-banner {
  background: var(--bg-secondary);
  padding: var(--space-16) var(--space-6);
}

.cta-card {
  background: linear-gradient(135deg, var(--color-primary-700), var(--color-primary-600), var(--color-primary-500));
  border-radius: var(--border-radius-xl);
  padding: var(--space-16) var(--space-10);
  text-align: center;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cta-card h2 {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 1;
  letter-spacing: -0.02em;
}

.cta-card p {
  font-size: var(--text-lg);
  opacity: 0.85;
  margin-bottom: var(--space-8);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ========================================
   FOOTER
   ======================================== */
#footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: var(--space-16) var(--space-6) var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer-brand p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: var(--space-4);
  max-width: 280px;
  line-height: var(--leading-relaxed);
}

.footer-links h4 {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-4);
  color: var(--text-primary);
}

.footer-links a {
  display: block;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  padding: var(--space-1) 0;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary-500);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-color);
}

.footer-bottom p {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}

.footer-social {
  display: flex;
  gap: var(--space-4);
}

.footer-social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  color: var(--text-tertiary);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* ========================================
   RESPONSIVE
   ======================================== */

/* Tablet */
@media (max-width: 1024px) {
  .hero-container {
    flex-direction: column;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero-subtitle {
    max-width: 520px;
  }

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

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

  .hero-mascot {
    width: 340px;
  }

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

  .steps-container {
    flex-direction: column;
  }

  .steps-grid {
    flex-wrap: wrap;
    justify-content: center;
  }

  .step-connector {
    display: none;
  }

  .steps-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

  .steps-mascot {
    width: 220px;
  }

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

  .testimonials-grid .testimonial-card:nth-child(3) {
    grid-column: span 2;
    max-width: 400px;
    justify-self: center;
  }

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

/* Mobile */
@media (max-width: 768px) {
  :root {
    --section-padding: var(--space-16) var(--space-5);
  }

  .nav-links {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .mobile-menu {
    display: flex;
  }

  .section-header h2 {
    font-size: var(--text-3xl);
  }

  #hero h1 {
    font-size: clamp(2rem, 8vw, 2.75rem);
  }

  .hero-mascot {
    width: 280px;
  }

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

  .feature-card {
    padding: var(--space-6);
  }

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

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

  .pricing-card--premium {
    transform: none;
    order: -1;
  }

  .pricing-card {
    padding: var(--space-8);
  }

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

  .testimonials-grid .testimonial-card:nth-child(3) {
    grid-column: span 1;
    max-width: 100%;
  }

  .stats-grid {
    flex-direction: column;
    gap: var(--space-8);
  }

  .stat-divider {
    width: 48px;
    height: 1px;
  }

  .stat-number {
    font-size: var(--text-4xl);
  }

  .cta-card {
    padding: var(--space-10) var(--space-6);
  }

  .cta-card h2 {
    font-size: var(--text-2xl);
  }

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

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

/* Small mobile */
@media (max-width: 380px) {
  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .cta-buttons .btn {
    width: 100%;
    max-width: 280px;
  }
}