@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Noto+Sans+SC:wght@300;400;500;700&family=Noto+Sans+JP:wght@300;400;500;700&family=Noto+Sans+KR:wght@300;400;500;700&display=swap');

:root {
  --color-primary: #ad97b6;
  --color-secondary: #242224;
  --color-accent: #7061b2;
  --color-highlight: #71a8c3;
  --color-primary-light: rgba(173, 151, 182, 0.15);
  --color-primary-glow: rgba(173, 151, 182, 0.4);
  --color-accent-light: rgba(112, 97, 178, 0.15);
  --color-highlight-light: rgba(113, 168, 195, 0.15);
  --color-bg: #0f0e11;
  --color-bg-alt: #1a181d;
  --color-bg-card: #1e1c21;
  --color-bg-card-hover: #252328;
  --color-text: #e8e4ec;
  --color-text-muted: #9a9498;
  --color-text-dim: #6b656f;
  --color-border: rgba(173, 151, 182, 0.12);
  --color-border-hover: rgba(173, 151, 182, 0.3);
  --gradient-primary: linear-gradient(135deg, #ad97b6, #7061b2);
  --gradient-hero: linear-gradient(160deg, #1a181d 0%, #0f0e11 50%, #171520 100%);
  --gradient-cta: linear-gradient(135deg, #7061b2, #ad97b6, #71a8c3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(173, 151, 182, 0.2);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-primary: 'Inter', 'Noto Sans SC', 'Noto Sans JP', 'Noto Sans KR', system-ui, sans-serif;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  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;
}

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

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

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

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

.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 48px;
}

section {
  padding: 80px 0;
}

/* ========== HEADER / NAV ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-normal);
  background: transparent;
}

.header.scrolled {
  background: rgba(15, 14, 17, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 10px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
}

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

.logo:hover {
  color: var(--color-text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  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;
}

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

.lang-switcher-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85rem;
  font-family: var(--font-primary);
  transition: all var(--transition-fast);
}

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

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

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

.lang-dropdown a {
  display: block;
  padding: 8px 16px;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  transition: all var(--transition-fast);
}

.lang-dropdown a:hover,
.lang-dropdown a.current {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--gradient-primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius-xl);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  box-shadow: 0 4px 15px rgba(112, 97, 178, 0.3);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(112, 97, 178, 0.5);
  color: #fff;
}

.btn-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: transparent;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-primary);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-cta-secondary:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  color: var(--color-primary);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 14, 17, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.mobile-nav.active {
  display: flex;
}

.mobile-nav a {
  color: var(--color-text);
  font-size: 1.3rem;
  font-weight: 500;
}

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

/* ========== HERO ========== */
.hero {
  padding: 140px 0 80px;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(112, 97, 178, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(113, 168, 195, 0.06) 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: 6px 16px;
  background: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  font-size: 0.85rem;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

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

.hero .hero-desc {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

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

.hero .btn-cta {
  padding: 14px 36px;
  font-size: 1rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

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

.hero-stat .stat-number {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
}

.hero-stat .stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ========== FEATURES ========== */
.features {
  background: var(--color-bg);
}

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

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition-normal);
}

.feature-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.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;
}

.feature-icon.purple {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.feature-icon.blue {
  background: var(--color-highlight-light);
  color: var(--color-highlight);
}

.feature-icon.pink {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text);
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

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

/* ========== USE CASES ========== */
.use-cases {
  background: var(--color-bg-alt);
}

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

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

.use-case-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.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: var(--color-primary-light);
  color: var(--color-primary);
}

.use-case-card:nth-child(2) .use-case-icon {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.use-case-card:nth-child(3) .use-case-icon {
  background: var(--color-highlight-light);
  color: var(--color-highlight);
}

.use-case-card:nth-child(4) .use-case-icon {
  background: rgba(182, 151, 173, 0.15);
  color: #b697ad;
}

.use-case-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.use-case-card p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ========== PRICING ========== */
.pricing {
  background: var(--color-bg);
}

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

.pricing-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  transition: all var(--transition-normal);
}

.pricing-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.pricing-card.popular {
  border-color: var(--color-accent);
  box-shadow: 0 0 40px rgba(112, 97, 178, 0.15);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: #fff;
  padding: 4px 20px;
  border-radius: var(--radius-xl);
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

.pricing-card .plan-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.pricing-card .plan-price {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 4px;
}

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

.pricing-card .plan-desc {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features li i.fa-check {
  color: var(--color-primary);
  font-size: 0.8rem;
}

.pricing-features li i.fa-xmark {
  color: var(--color-text-dim);
  font-size: 0.8rem;
}

.pricing-features li.disabled {
  color: var(--color-text-dim);
}

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

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

/* ========== TESTIMONIALS ========== */
.testimonials {
  background: var(--color-bg-alt);
}

.testimonials-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

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

.rating-score {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-primary);
}

.rating-stars {
  color: #f5a623;
  font-size: 1.1rem;
  margin: 4px 0;
}

.rating-count {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.rating-bars {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rating-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.rating-bar .bar-track {
  width: 120px;
  height: 6px;
  background: var(--color-bg-card);
  border-radius: 3px;
  overflow: hidden;
}

.rating-bar .bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 3px;
}

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

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

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

.testimonial-card .stars {
  color: #f5a623;
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.testimonial-card .review-text {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  font-style: italic;
}

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

.reviewer-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
}

.reviewer-info .reviewer-name {
  font-size: 0.9rem;
  font-weight: 600;
}

.reviewer-info .reviewer-role {
  font-size: 0.78rem;
  color: var(--color-text-dim);
}

.testimonial-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 36px;
}

.testimonial-tag {
  padding: 6px 16px;
  background: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  font-size: 0.82rem;
  color: var(--color-primary);
}

/* ========== COMPARISON ========== */
.comparison {
  background: var(--color-bg);
}

.comparison-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.comparison-table thead th {
  padding: 20px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

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

.comparison-table thead th.highlight {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.comparison-table tbody td {
  padding: 16px 24px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

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

.comparison-table tbody td.highlight {
  background: rgba(173, 151, 182, 0.05);
}

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

.comparison-table .check {
  color: var(--color-primary);
  font-size: 1.1rem;
}

.comparison-table .cross {
  color: var(--color-text-dim);
  font-size: 1.1rem;
}

/* ========== FAQ ========== */
.faq {
  background: var(--color-bg-alt);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

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

.faq-item:hover {
  border-color: var(--color-border-hover);
}

.faq-item.active {
  border-color: var(--color-primary);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.95rem;
  user-select: none;
  transition: color var(--transition-fast);
}

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

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

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

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

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ========== FINAL CTA ========== */
.final-cta {
  background: var(--gradient-cta);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 14, 17, 0.5);
}

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

.final-cta h2 {
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.final-cta p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
}

.final-cta .btn-cta {
  padding: 16px 44px;
  font-size: 1.1rem;
  background: #fff;
  color: var(--color-accent);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.final-cta .btn-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

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

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 40px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

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

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

.footer-brand p {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  line-height: 1.7;
}

.footer-links-group {
  display: flex;
  gap: 64px;
}

.footer-col h4 {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}

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

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

/* ========== BACK TO TOP ========== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
  z-index: 900;
}

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

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

/* ========== 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);
  }

  .pricing-card:last-child {
    grid-column: span 2;
    max-width: 400px;
    justify-self: center;
  }

  .testimonial-card {
    min-width: calc(50% - 12px);
  }
}

@media (max-width: 768px) {
  html { font-size: 15px; }

  .nav-links { display: none; }
  .nav-right .btn-cta { display: none; }
  .hamburger { display: flex; }

  .hero { padding: 120px 0 60px; }
  .hero h1 { font-size: 2.2rem; }
  .hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  section { padding: 60px 0; }
  .section-title { font-size: 1.8rem; }

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

  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card:last-child { grid-column: auto; max-width: none; }

  .testimonial-card { min-width: calc(100% - 0px); }

  .comparison-table { font-size: 0.82rem; }
  .comparison-table thead th,
  .comparison-table tbody td { padding: 12px 14px; }

  .footer-content { flex-direction: column; }
  .footer-links-group { gap: 32px; flex-wrap: wrap; }
  .footer-bottom { flex-direction: column; text-align: center; }

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

  .testimonials-header { flex-direction: column; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: 1.8rem; }
  .hero-buttons { flex-direction: column; }
  .hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 16px;
  }
  .lang-switcher-btn span.lang-name { display: none; }
}