/* ============================================
   Botify AI — Global Stylesheet
   ============================================ */

/* --- CSS Variables --- */
:root {
  --color-primary: #21202b;
  --color-secondary: #28252f;
  --color-accent: #bca8a0;
  --color-blue: #61a5d5;
  --color-purple: #716de4;
  --color-bg: #0f0e17;
  --color-surface: #1a1926;
  --color-surface-alt: #221f2e;
  --color-text: #e8e6f0;
  --color-text-muted: #9e9bae;
  --color-border: rgba(188, 168, 160, 0.15);
  --color-glass: rgba(33, 32, 43, 0.65);
  --gradient-hero: linear-gradient(135deg, #716de4 0%, #61a5d5 50%, #bca8a0 100%);
  --gradient-cta: linear-gradient(135deg, #716de4 0%, #61a5d5 100%);
  --gradient-final: linear-gradient(135deg, #28252f 0%, #21202b 50%, #1a1926 100%);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(113, 109, 228, 0.2);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-en: 'Inter', sans-serif;
  --font-zh: 'Noto Sans SC', 'Inter', sans-serif;
  --font-ja: 'Noto Sans JP', 'Inter', sans-serif;
  --font-ko: 'Noto Sans KR', 'Inter', sans-serif;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

body.zh-font { font-family: var(--font-zh); }
body.ja-font { font-family: var(--font-ja); }
body.ko-font { font-family: var(--font-ko); }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover { color: var(--color-blue); }

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

ul, ol { list-style: none; }

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Section Base --- */
section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-xl);
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-cta);
  color: #fff;
  box-shadow: 0 4px 15px rgba(113, 109, 228, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(113, 109, 228, 0.5);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--color-purple);
  color: var(--color-purple);
  background: rgba(113, 109, 228, 0.08);
}

.btn-large {
  padding: 18px 44px;
  font-size: 1.15rem;
  border-radius: var(--radius-xl);
}

/* --- Header / Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: var(--color-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 10px 0;
  box-shadow: var(--shadow-sm);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
}

.nav-brand img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition-fast);
}

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

.nav-links a i { font-size: 0.85rem; }

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-cta {
  padding: 10px 24px;
  font-size: 0.9rem;
}

/* Language Switcher */
.lang-switcher {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
  cursor: pointer;
  background: transparent;
}

.lang-btn:hover {
  border-color: var(--color-purple);
  color: var(--color-text);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 160px;
  background: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  overflow: hidden;
  z-index: 100;
}

.lang-switcher.open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-dropdown a {
  display: block;
  padding: 10px 16px;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.lang-dropdown a:hover {
  background: rgba(113, 109, 228, 0.1);
  color: var(--color-text);
}

.lang-dropdown a.active {
  color: var(--color-purple);
  font-weight: 600;
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  font-size: 1.4rem;
  color: var(--color-text);
  padding: 8px;
}

.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-primary);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-nav.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav a {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-text);
}

.mobile-nav-close {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 1.6rem;
  color: var(--color-text);
  padding: 8px;
}

/* --- Hero Section --- */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(113, 109, 228, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -15%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(97, 165, 213, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(113, 109, 228, 0.12);
  border: 1px solid rgba(113, 109, 228, 0.25);
  border-radius: 50px;
  font-size: 0.88rem;
  color: var(--color-purple);
  margin-bottom: 28px;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero h1 .highlight {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

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

.hero-stat .number {
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat .label {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* --- Features Section --- */
.features {
  background: var(--color-surface);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-cta);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(113, 109, 228, 0.3);
}

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

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 20px;
  background: rgba(113, 109, 228, 0.12);
  color: var(--color-purple);
}

.feature-card:nth-child(2) .feature-icon {
  background: rgba(97, 165, 213, 0.12);
  color: var(--color-blue);
}

.feature-card:nth-child(3) .feature-icon {
  background: rgba(188, 168, 160, 0.12);
  color: var(--color-accent);
}

.feature-card:nth-child(4) .feature-icon {
  background: rgba(97, 165, 213, 0.12);
  color: var(--color-blue);
}

.feature-card:nth-child(5) .feature-icon {
  background: rgba(188, 168, 160, 0.12);
  color: var(--color-accent);
}

.feature-card:nth-child(6) .feature-icon {
  background: rgba(113, 109, 228, 0.12);
  color: var(--color-purple);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.features-cta {
  text-align: center;
  margin-top: 48px;
}

/* --- Use Cases Section --- */
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.use-case-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition-base);
}

.use-case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.use-case-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 20px;
}

.use-case-card:nth-child(1) .use-case-icon {
  background: rgba(113, 109, 228, 0.12);
  color: var(--color-purple);
}

.use-case-card:nth-child(2) .use-case-icon {
  background: rgba(97, 165, 213, 0.12);
  color: var(--color-blue);
}

.use-case-card:nth-child(3) .use-case-icon {
  background: rgba(188, 168, 160, 0.12);
  color: var(--color-accent);
}

.use-case-card:nth-child(4) .use-case-icon {
  background: rgba(113, 109, 228, 0.15);
  color: var(--color-purple);
}

.use-case-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.use-case-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* --- Pricing Section --- */
.pricing {
  background: var(--color-surface);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: all var(--transition-base);
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.pricing-card.popular {
  border-color: var(--color-purple);
  box-shadow: var(--shadow-glow);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 20px;
  background: var(--gradient-cta);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
}

.pricing-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.pricing-card .price {
  font-size: 2.8rem;
  font-weight: 800;
  margin: 16px 0;
}

.pricing-card .price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.pricing-card .price-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.pricing-features {
  margin-bottom: 32px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.pricing-features li i {
  font-size: 0.85rem;
  width: 20px;
  text-align: center;
}

.pricing-features li i.fa-check { color: var(--color-purple); }
.pricing-features li i.fa-xmark { color: #555; }

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

/* --- Testimonials Section --- */
.testimonials-overview {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.rating-summary {
  text-align: center;
}

.rating-score {
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.rating-stars {
  color: #f5a623;
  font-size: 1.2rem;
  margin: 8px 0;
}

.rating-count {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.rating-bars {
  flex: 0 0 260px;
}

.bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.bar-row span:first-child {
  width: 40px;
  text-align: right;
}

.bar-track {
  flex: 1;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--gradient-cta);
}

.bar-row span:last-child { width: 36px; }

.testimonials-carousel {
  position: relative;
  overflow: hidden;
}

.testimonials-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s ease;
}

.testimonial-card {
  flex: 0 0 calc(33.333% - 16px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.testimonial-card .stars {
  color: #f5a623;
  font-size: 0.9rem;
  margin-bottom: 14px;
}

.testimonial-card blockquote {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-cta);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
}

.testimonial-author .name {
  font-size: 0.92rem;
  font-weight: 600;
}

.testimonial-author .role {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.testimonial-tags {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 40px;
}

.testimonial-tags span {
  padding: 6px 16px;
  background: rgba(113, 109, 228, 0.1);
  border: 1px solid rgba(113, 109, 228, 0.2);
  border-radius: 50px;
  font-size: 0.82rem;
  color: var(--color-purple);
}

/* --- Comparison Section --- */
.comparison {
  background: var(--color-surface);
}

.comparison-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.comparison-table th,
.comparison-table td {
  padding: 16px 24px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table thead th {
  background: var(--color-surface-alt);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
}

.comparison-table thead th:first-child {
  text-align: left;
}

.comparison-table thead th.highlight-col {
  background: rgba(113, 109, 228, 0.15);
  color: var(--color-purple);
}

.comparison-table tbody td:first-child {
  text-align: left;
  font-weight: 500;
}

.comparison-table tbody td.highlight-col {
  background: rgba(113, 109, 228, 0.06);
}

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

.comparison-table .check { color: var(--color-purple); font-weight: 700; }
.comparison-table .cross { color: #555; }

/* --- FAQ Section --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: rgba(113, 109, 228, 0.3);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  text-align: left;
  background: transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
}

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

.faq-question i {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

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

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* --- Final CTA Section --- */
.final-cta {
  background: var(--gradient-final);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(113, 109, 228, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

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

.final-cta h2 {
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.final-cta p {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 36px;
}

/* --- Footer --- */
.footer {
  background: var(--color-primary);
  border-top: 1px solid var(--color-border);
  padding: 48px 0 24px;
}

.footer-content {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .nav-brand {
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col h4 {
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text);
}

.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.footer-col a:hover { color: var(--color-purple); }

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* --- Back to Top --- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-cta);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
  z-index: 900;
  cursor: pointer;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(113, 109, 228, 0.4);
  color: #fff;
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .testimonial-card {
    flex: 0 0 calc(50% - 12px);
  }
}

@media (max-width: 768px) {
  section { padding: 72px 0; }

  .section-header h2 { font-size: 1.8rem; }

  .nav-links { display: none; }

  .menu-toggle { display: block; }

  .mobile-nav { display: flex; }

  .hero { min-height: auto; padding-top: 120px; padding-bottom: 60px; }

  .hero h1 { font-size: 2.2rem; }

  .hero-subtitle { font-size: 1rem; }

  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }

  .hero-stat .number { font-size: 1.5rem; }

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

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

  .testimonial-card {
    flex: 0 0 100%;
  }

  .testimonials-overview {
    flex-direction: column;
    gap: 24px;
  }

  .footer-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer-links {
    flex-direction: column;
    gap: 32px;
    align-items: center;
  }

  .final-cta h2 { font-size: 1.8rem; }

  .comparison-table { font-size: 0.85rem; }

  .comparison-table th,
  .comparison-table td {
    padding: 12px 14px;
  }

  .nav-cta.btn { display: none; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }

  .btn-large {
    padding: 14px 32px;
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
  }
}