@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&display=swap');

:root {
  --color-primary: #ec1f8f;
  --color-primary-hover: #d11a7e;
  --color-secondary: #9333ea;
  --color-secondary-hover: #7e22ce;
  --color-accent: #ec1f8f;
  --color-accent-hover: #d11a7e;
  --color-accent-light: rgba(236, 31, 143, 0.1);
  --color-orange: #ff6b1f;
  --color-orange-light: rgba(255, 107, 31, 0.1);
  --color-dark: #2d0a35;
  --color-dark-light: #4a0e4e;
  --color-deepest: #1a0420;
  --color-gray: #6b7280;
  --color-white: #ffffff;
  --color-bg: #fafafa;
  --color-card: #ffffff;
  --color-border: #ececf0;
  --color-text: #1a1a2e;
  --color-text-secondary: #6b7280;
  --gradient-primary: linear-gradient(135deg, #ec1f8f 0%, #9333ea 100%);
  --gradient-primary-hover: linear-gradient(135deg, #d11a7e 0%, #7e22ce 100%);
  --gradient-hero: linear-gradient(135deg, #2d0a35 0%, #4a0e4e 50%, #5c0f5e 100%);
  --shadow-sm: 0 1px 3px rgba(45, 10, 53, 0.06);
  --shadow-md: 0 4px 16px rgba(45, 10, 53, 0.08);
  --shadow-lg: 0 8px 32px rgba(45, 10, 53, 0.12);
  --shadow-xl: 0 16px 48px rgba(45, 10, 53, 0.16);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --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: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

ul, ol {
  list-style: none;
}

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

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

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

.header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
}

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

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

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

.footer-brand .nav-brand span {
  background: linear-gradient(135deg, #ff5cb0 0%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

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

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-gray);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition);
}

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

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

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

.lang-switcher {
  position: relative;
}

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

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

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

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

.lang-dropdown a {
  display: block;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--color-text);
  transition: all var(--transition);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(236, 31, 143, 0.35);
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  background: var(--gradient-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(147, 51, 234, 0.45);
}

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

.btn-secondary:hover {
  background: var(--color-orange);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 31, 0.35);
}

.btn-lg {
  padding: 14px 36px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

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

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

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

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 25% 40%, rgba(236, 31, 143, 0.18) 0%, transparent 55%),
              radial-gradient(ellipse at 75% 60%, rgba(147, 51, 234, 0.16) 0%, transparent 55%),
              radial-gradient(ellipse at 50% 80%, rgba(255, 107, 31, 0.08) 0%, transparent 50%);
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(2%, -2%) scale(1.05); }
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(236, 31, 143, 0.15);
  border: 1px solid rgba(236, 31, 143, 0.35);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  color: #ff5cb0;
  margin-bottom: 24px;
}

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

.hero h1 span {
  background: linear-gradient(135deg, #ff4ba8 0%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

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

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

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

.hero-stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 4px;
}

/* ============================================
   SECTION COMMON
   ============================================ */
.section {
  padding: 88px 0;
}

.section-alt {
  background: var(--color-white);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--color-gray);
  max-width: 600px;
  margin: 0 auto;
}

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

.feature-card {
  background: var(--color-card);
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

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

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 4px 14px rgba(236, 31, 143, 0.25);
}

.feature-icon i {
  font-size: 1.3rem;
  color: var(--color-white);
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-dark);
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--color-gray);
  line-height: 1.6;
}

.features-cta {
  text-align: center;
  margin-top: 44px;
}

/* ============================================
   USE CASES
   ============================================ */
.usecases-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

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

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

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

.usecase-card:nth-child(1) .usecase-icon {
  background: rgba(236, 31, 143, 0.12);
  color: #ec1f8f;
}

.usecase-card:nth-child(2) .usecase-icon {
  background: rgba(147, 51, 234, 0.12);
  color: #9333ea;
}

.usecase-card:nth-child(3) .usecase-icon {
  background: rgba(255, 107, 31, 0.12);
  color: #ff6b1f;
}

.usecase-card:nth-child(4) .usecase-icon {
  background: rgba(192, 132, 252, 0.15);
  color: #a855f7;
}

.usecase-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-dark);
}

.usecase-card p {
  font-size: 0.9rem;
  color: var(--color-gray);
  line-height: 1.6;
}

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

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

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

.pricing-card.popular {
  border: 2px solid transparent;
  background:
    linear-gradient(var(--color-card), var(--color-card)) padding-box,
    var(--gradient-primary) border-box;
  box-shadow: 0 12px 32px rgba(236, 31, 143, 0.18);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: var(--color-white);
  padding: 4px 18px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(236, 31, 143, 0.35);
}

.pricing-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 4px;
}

.pricing-card.popular .pricing-price {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pricing-price span {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--color-gray);
}

.pricing-desc {
  font-size: 0.9rem;
  color: var(--color-gray);
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.pricing-features {
  margin-bottom: 28px;
}

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

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

.pricing-features li i.fa-check {
  color: #10b981;
}

.pricing-features li i.fa-xmark {
  color: #d1d5db;
}

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

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials-overview {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

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

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

.testimonials-score .stars {
  color: #fbbf24;
  font-size: 1.2rem;
  margin: 4px 0;
}

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

.rating-bars {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 200px;
}

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

.rating-bar-fill {
  flex: 1;
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
  overflow: hidden;
}

.rating-bar-fill div {
  height: 100%;
  background: #fbbf24;
  border-radius: 3px;
}

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

.testimonials-tags span {
  background: var(--color-accent-light);
  color: #ec1f8f;
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid rgba(236, 31, 143, 0.2);
}

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

.testimonials-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.testimonial-card .stars {
  color: #fbbf24;
  font-size: 0.9rem;
  margin-bottom: 14px;
}

.testimonial-card p {
  font-size: 0.92rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 18px;
  font-style: italic;
}

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

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(236, 31, 143, 0.25);
}

.testimonial-info .name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-dark);
}

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

.carousel-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

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

.carousel-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-light);
}

/* ============================================
   COMPARISON
   ============================================ */
.comparison-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-card);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.comparison-table thead {
  background: var(--gradient-hero);
  color: var(--color-white);
}

.comparison-table th {
  padding: 16px 20px;
  text-align: left;
  font-weight: 600;
}

.comparison-table th.highlight {
  background: var(--gradient-primary);
}

.comparison-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
}

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

.comparison-table tbody tr:hover {
  background: rgba(236, 31, 143, 0.03);
}

.comparison-table td.highlight {
  background: rgba(236, 31, 143, 0.05);
  font-weight: 500;
}

.comparison-table .check {
  color: #ec1f8f;
  font-weight: 600;
}

.comparison-table .cross {
  color: #d1d5db;
}

/* ============================================
   FAQ
   ============================================ */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

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

.faq-item:hover {
  border-color: rgba(236, 31, 143, 0.35);
  box-shadow: 0 4px 12px rgba(236, 31, 143, 0.06);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-dark);
  text-align: left;
  font-family: inherit;
  transition: color var(--transition);
}

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

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

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer-content {
  padding: 0 24px 20px;
  font-size: 0.9rem;
  color: var(--color-gray);
  line-height: 1.7;
}

/* ============================================
   FINAL CTA
   ============================================ */
.cta-section {
  padding: 88px 0;
  background: var(--gradient-hero);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(236, 31, 143, 0.18) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 50%, rgba(147, 51, 234, 0.16) 0%, transparent 60%);
}

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

.cta-section h2 {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 36px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--gradient-hero);
  padding: 48px 0 24px;
  color: rgba(255, 255, 255, 0.7);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 40px;
  flex-wrap: wrap;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-brand .nav-brand {
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  padding: 4px 0;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 0.8rem;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
}

.footer-legal a:hover {
  color: var(--color-accent);
}

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: 0 4px 16px rgba(236, 31, 143, 0.4);
  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(-2px);
  box-shadow: 0 8px 24px rgba(147, 51, 234, 0.5);
}

/* ============================================
   ANIMATIONS
   ============================================ */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   MOBILE NAV OVERLAY
   ============================================ */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(45, 10, 53, 0.98);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

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

.mobile-nav a {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color var(--transition);
}

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

.mobile-nav .lang-mobile {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav .lang-mobile a {
  font-size: 0.9rem;
  font-weight: 400;
  padding: 6px 14px;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

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

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

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

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .lang-switcher {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-nav {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

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

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

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

  .section {
    padding: 60px 0;
  }

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

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

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

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

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

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

  .footer-content {
    flex-direction: column;
  }

  .footer-links {
    flex-direction: column;
    gap: 24px;
  }

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

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

  .comparison-table {
    font-size: 0.82rem;
  }

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

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

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

  .hero-stat-value {
    font-size: 1.4rem;
  }

  .btn-lg {
    padding: 12px 28px;
    font-size: 0.95rem;
  }
}