:root {
  --color-primary: #3a1271;
  --color-secondary: #3a1371;
  --color-accent: #f2e3f5;
  --color-muted: #a76f9a;
  --color-highlight: #4c2de2;
  --color-bg: #ffffff;
  --color-bg-alt: #faf5fc;
  --color-text: #1a1a2e;
  --color-text-light: #6b6b80;
  --color-border: #e8d5ed;
  --color-card-bg: #ffffff;
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-highlight) 100%);
  --gradient-hero: linear-gradient(160deg, #1a0a3e 0%, var(--color-primary) 40%, var(--color-highlight) 100%);
  --gradient-cta: linear-gradient(135deg, var(--color-highlight) 0%, var(--color-primary) 100%);
  --shadow-sm: 0 2px 8px rgba(58, 18, 113, 0.08);
  --shadow-md: 0 4px 20px rgba(58, 18, 113, 0.12);
  --shadow-lg: 0 8px 40px rgba(58, 18, 113, 0.16);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-heading: 'Inter', 'Noto Sans SC', 'Noto Sans JP', 'Noto Sans KR', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', 'Noto Sans JP', 'Noto Sans KR', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

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

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

ul {
  list-style: none;
}

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

.section-title {
  text-align: center;
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-light);
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0 auto 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(76, 45, 226, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(76, 45, 226, 0.5);
}

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

.btn-secondary:hover {
  background: var(--color-primary);
  color: #fff;
}

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

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
}

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

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.2rem;
  color: #fff;
  z-index: 1001;
}

.header.scrolled .header-logo {
  color: var(--color-primary);
}

.header-logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition);
}

.nav-links a:hover {
  color: #fff;
}

.header.scrolled .nav-links a {
  color: var(--color-text-light);
}

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

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

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

.lang-switcher {
  position: relative;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  cursor: pointer;
  transition: all var(--transition);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.header.scrolled .lang-toggle {
  color: var(--color-text);
  background: var(--color-accent);
  border-color: var(--color-border);
}

.lang-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
}

.header.scrolled .lang-toggle:hover {
  background: var(--color-border);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 160px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition);
  border: 1px solid var(--color-border);
  overflow: hidden;
  z-index: 1002;
}

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

.lang-dropdown a {
  display: block;
  padding: 10px 16px;
  font-size: 0.9rem;
  color: var(--color-text);
  transition: background var(--transition);
}

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

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

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: #fff;
  border-radius: 2px;
  transition: all var(--transition);
}

.header.scrolled .hamburger span {
  background: var(--color-primary);
}

.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);
}

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

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(76, 45, 226, 0.3) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(167, 111, 154, 0.25) 0%, transparent 70%);
  border-radius: 50%;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.9rem;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 3.2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 20px;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

.hero h1 span {
  background: linear-gradient(135deg, #c084fc 0%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.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: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

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

.hero-stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}

/* ===== FEATURES ===== */
.features {
  padding: 96px 0;
  background: var(--color-bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

.feature-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
}

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

.features-cta {
  text-align: center;
}

/* ===== USE CASES ===== */
.use-cases {
  padding: 96px 0;
  background: var(--color-bg-alt);
}

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

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

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

.use-case-card:nth-child(1) .use-case-icon { background: #ede9fe; color: #7c3aed; }
.use-case-card:nth-child(2) .use-case-icon { background: #fce7f3; color: #db2777; }
.use-case-card:nth-child(3) .use-case-icon { background: #e0f2fe; color: #0284c7; }
.use-case-card:nth-child(4) .use-case-icon { background: #fef3c7; color: #d97706; }

.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 h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* ===== PRICING ===== */
.pricing {
  padding: 96px 0;
  background: var(--color-bg);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: start;
}

.pricing-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
}

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

.pricing-card.popular {
  border: 2px solid var(--color-highlight);
  box-shadow: var(--shadow-lg);
  transform: scale(1.04);
}

.pricing-card.popular:hover {
  transform: scale(1.04) translateY(-4px);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 20px;
  border-radius: 50px;
  white-space: nowrap;
}

.pricing-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-primary);
  margin: 16px 0 4px;
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-light);
}

.pricing-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 28px;
}

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

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.95rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

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

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

.pricing-features li i.fa-check {
  color: #22c55e;
}

.pricing-features li i.fa-xmark {
  color: #d4d4d8;
}

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

/* ===== TESTIMONIALS ===== */
.testimonials {
  padding: 96px 0;
  background: var(--color-bg-alt);
}

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

.testimonials-score {
  text-align: center;
}

.testimonials-score .score {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.testimonials-score .stars {
  color: #f59e0b;
  font-size: 1.3rem;
  margin: 8px 0;
}

.testimonials-score .count {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.rating-bars {
  flex: 0 0 280px;
}

.rating-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  font-size: 0.85rem;
}

.rating-bar span:first-child {
  width: 20px;
  text-align: right;
  color: var(--color-text-light);
}

.rating-bar .bar {
  flex: 1;
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
}

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

.rating-bar span:last-child {
  width: 36px;
  color: var(--color-text-light);
}

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

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

.testimonial-card {
  flex: 0 0 100%;
  padding: 0 12px;
}

@media (min-width: 768px) {
  .testimonial-card {
    flex: 0 0 50%;
  }
}

@media (min-width: 1024px) {
  .testimonial-card {
    flex: 0 0 33.333%;
  }
}

.testimonial-inner {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--color-border);
  height: 100%;
}

.testimonial-stars {
  color: #f59e0b;
  margin-bottom: 16px;
}

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

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

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.95rem;
}

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

.testimonials-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.testimonials-nav button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-card-bg);
  color: var(--color-primary);
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.testimonials-nav button:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.testimonials-dots {
  display: flex;
  gap: 8px;
}

.testimonials-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  cursor: pointer;
  transition: all var(--transition);
}

.testimonials-dots span.active {
  background: var(--color-primary);
  width: 28px;
  border-radius: 5px;
}

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

.testimonials-tags span {
  padding: 6px 16px;
  background: var(--color-accent);
  color: var(--color-primary);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* ===== COMPARISON ===== */
.comparison {
  padding: 96px 0;
  background: var(--color-bg);
}

.comparison-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.comparison-table thead th {
  background: var(--color-primary);
  color: #fff;
  padding: 18px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
}

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

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

.comparison-table tbody td {
  padding: 16px 20px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

.comparison-table tbody td:first-child {
  text-align: left;
  font-weight: 600;
}

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

.comparison-table tbody td.highlight-col {
  background: rgba(76, 45, 226, 0.04);
}

.comparison-table .check {
  color: #22c55e;
  font-weight: 700;
}

.comparison-table .cross {
  color: #d4d4d8;
}

.comparison-table .text-highlight {
  color: var(--color-highlight);
  font-weight: 600;
}

/* ===== FAQ ===== */
.faq {
  padding: 96px 0;
  background: var(--color-bg-alt);
}

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

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

.faq-item.active {
  box-shadow: var(--shadow-sm);
  border-color: rgba(76, 45, 226, 0.2);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  gap: 16px;
  transition: color var(--transition);
}

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

.faq-question i {
  font-size: 0.9rem;
  transition: transform var(--transition);
  color: var(--color-muted);
  flex-shrink: 0;
}

.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: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

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

.final-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(76, 45, 226, 0.25) 0%, transparent 70%);
  border-radius: 50%;
}

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

.final-cta h2 {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.final-cta p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 36px;
}

/* ===== FOOTER ===== */
.footer {
  background: #0d0620;
  padding: 48px 0 24px;
  color: rgba(255, 255, 255, 0.7);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
}

.footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.footer-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition);
  z-index: 999;
}

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

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* ===== ANIMATIONS ===== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 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.popular {
    transform: none;
  }

  .pricing-card.popular:hover {
    transform: translateY(-4px);
  }
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.8rem;
  }

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

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

  .hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 32px;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
  }

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

  .header-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--color-primary);
    flex-direction: column;
    justify-content: center;
    gap: 24px;
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 1000;
  }

  .header-nav.active {
    transform: translateX(0);
  }

  .header-nav .nav-links {
    flex-direction: column;
    gap: 20px;
  }

  .header-nav .nav-links a {
    font-size: 1.2rem;
    color: #fff;
  }

  .header-nav .lang-switcher .lang-toggle {
    color: #fff;
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.25);
  }

  .hamburger {
    display: flex;
  }

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

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

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

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

  .comparison-table thead th,
  .comparison-table tbody td {
    padding: 12px 10px;
  }

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

  .rating-bars {
    flex: 0 0 auto;
    width: 100%;
    max-width: 280px;
  }

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

  .footer-links {
    justify-content: center;
  }

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

@media (max-width: 480px) {
  .hero {
    padding: 120px 0 60px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 24px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .comparison-table {
    font-size: 0.78rem;
  }
}