/* ========== CSS Variables ========== */
:root {
  --color-primary: #262b33;
  --color-secondary: #262b34;
  --color-accent: #d0b395;
  --color-blue: #1e6cf1;
  --color-green: #6cad85;
  --color-white: #ffffff;
  --color-light: #f4f6f8;
  --color-gray: #8a929e;
  --color-border: #e2e5ea;
  --color-card-bg: #ffffff;
  --color-hero-gradient: linear-gradient(135deg, #262b33 0%, #1a1f26 50%, #262b34 100%);
  --color-cta-gradient: linear-gradient(135deg, #1e6cf1 0%, #6cad85 100%);
  --color-accent-gradient: linear-gradient(135deg, #d0b395 0%, #e8d5bf 100%);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.06);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-en: 'Inter', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', 'Noto Sans JP', 'Noto Sans KR', 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-body);
  color: var(--color-primary);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

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

/* ========== Animations ========== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

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

.header.scrolled {
  background: rgba(38, 43, 51, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 10px 0;
  box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

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

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

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

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

.nav-links a {
  color: rgba(255,255,255,0.8);
  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-white);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--color-blue);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-cta:hover {
  background: #1558c9;
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(30, 108, 241, 0.4);
}

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

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.85);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid rgba(255,255,255,0.15);
}

.lang-btn:hover {
  background: rgba(255,255,255,0.2);
  color: var(--color-white);
}

.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(-4px);
  transition: all var(--transition-fast);
  border: 1px solid var(--color-border);
  z-index: 100;
}

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

.lang-dropdown a {
  display: block;
  padding: 8px 14px;
  font-size: 0.85rem;
  color: var(--color-primary);
  border-radius: 6px;
  transition: background var(--transition-fast);
}

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

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  background: none;
  color: var(--color-white);
  font-size: 1.4rem;
  padding: 4px;
}

.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(38, 43, 51, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.mobile-nav a {
  color: var(--color-white);
  font-size: 1.3rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
}

.mobile-nav .close-btn {
  position: absolute;
  top: 20px;
  right: 24px;
  background: none;
  color: var(--color-white);
  font-size: 1.6rem;
  cursor: pointer;
  border: none;
}

.mobile-nav .mobile-lang-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 16px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.mobile-nav .mobile-lang-list a {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.2);
}

.mobile-nav .mobile-lang-list a:hover,
.mobile-nav .mobile-lang-list a.active {
  color: var(--color-white);
  border-color: var(--color-blue);
  background: rgba(30, 108, 241, 0.2);
}

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

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(30,108,241,0.08) 0%, transparent 50%),
              radial-gradient(circle at 70% 50%, rgba(108,173,133,0.06) 0%, transparent 50%);
  animation: float 8s ease-in-out infinite;
}

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

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 16px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

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

.hero .subtitle {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.7);
  max-width: 640px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero .btn-hero {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  background: var(--color-blue);
  color: var(--color-white);
  border-radius: var(--radius-xl);
  font-size: 1.1rem;
  font-weight: 700;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 20px rgba(30,108,241,0.35);
}

.hero .btn-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(30,108,241,0.5);
  background: #1558c9;
}

.hero-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
}

.hero-badge i {
  color: var(--color-green);
}

/* ========== Section Common ========== */
.section {
  padding: 80px 0;
}

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

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.section-title p {
  font-size: 1.05rem;
  color: var(--color-gray);
  max-width: 560px;
  margin: 0 auto;
}

/* ========== Features Section ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

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

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

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
  background: rgba(30, 108, 241, 0.08);
  color: var(--color-blue);
}

.feature-card:nth-child(2) .feature-icon {
  background: rgba(108, 173, 133, 0.1);
  color: var(--color-green);
}

.feature-card:nth-child(3) .feature-icon {
  background: rgba(208, 179, 149, 0.15);
  color: var(--color-accent);
}

.feature-card:nth-child(4) .feature-icon {
  background: rgba(30, 108, 241, 0.08);
  color: var(--color-blue);
}

.feature-card:nth-child(5) .feature-icon {
  background: rgba(108, 173, 133, 0.1);
  color: var(--color-green);
}

.feature-card:nth-child(6) .feature-icon {
  background: rgba(208, 179, 149, 0.15);
  color: var(--color-accent);
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-primary);
}

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

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border: 2px solid var(--color-blue);
  color: var(--color-blue);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  background: transparent;
}

.btn-secondary:hover {
  background: var(--color-blue);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(30,108,241,0.3);
}

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

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

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

.usecase-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 18px;
}

.usecase-card:nth-child(1) .usecase-icon {
  background: rgba(30, 108, 241, 0.1);
  color: var(--color-blue);
}

.usecase-card:nth-child(2) .usecase-icon {
  background: rgba(108, 173, 133, 0.1);
  color: var(--color-green);
}

.usecase-card:nth-child(3) .usecase-icon {
  background: rgba(208, 179, 149, 0.15);
  color: var(--color-accent);
}

.usecase-card:nth-child(4) .usecase-icon {
  background: rgba(30, 108, 241, 0.1);
  color: var(--color-blue);
}

.usecase-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.usecase-card p {
  font-size: 0.88rem;
  color: var(--color-gray);
  line-height: 1.6;
}

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

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

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

.pricing-card.popular {
  border: 2px solid var(--color-blue);
  box-shadow: var(--shadow-md);
  transform: scale(1.03);
}

.pricing-card.popular:hover {
  transform: scale(1.03) translateY(-4px);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-blue);
  color: var(--color-white);
  padding: 4px 20px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
}

.pricing-card .plan-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

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

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

.pricing-card .price-desc {
  font-size: 0.85rem;
  color: var(--color-gray);
  margin-bottom: 24px;
}

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

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

.pricing-features li i.fa-check {
  color: var(--color-green);
  font-size: 0.85rem;
}

.pricing-features li i.fa-xmark {
  color: #ccc;
  font-size: 0.85rem;
}

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

.btn-pricing {
  display: block;
  width: 100%;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  text-align: center;
  transition: all var(--transition-fast);
}

.btn-pricing.primary {
  background: var(--color-blue);
  color: var(--color-white);
}

.btn-pricing.primary:hover {
  background: #1558c9;
  box-shadow: 0 4px 15px rgba(30,108,241,0.4);
}

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

.btn-pricing.outline:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
}

/* ========== Testimonials Section ========== */
.testimonials-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

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

.rating-score {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.rating-stars {
  color: #f5a623;
  font-size: 1.1rem;
  margin: 6px 0;
}

.rating-count {
  font-size: 0.85rem;
  color: var(--color-gray);
}

.star-bars {
  width: 200px;
}

.star-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--color-gray);
  margin-bottom: 4px;
}

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

.star-bar .bar-fill {
  height: 100%;
  background: #f5a623;
  border-radius: 3px;
}

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

.testimonial-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
}

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

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

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

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

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

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

.testimonial-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 32px;
}

.testimonial-tag {
  padding: 6px 16px;
  background: rgba(30, 108, 241, 0.06);
  color: var(--color-blue);
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
}

/* ========== Comparison Section ========== */
.comparison-table-wrapper {
  overflow-x: auto;
}

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

.comparison-table th,
.comparison-table td {
  padding: 16px 24px;
  text-align: center;
  font-size: 0.92rem;
}

.comparison-table thead th {
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.95rem;
}

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

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

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

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

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

.comparison-table .highlight-col {
  background: rgba(30, 108, 241, 0.04);
}

.comparison-table .check {
  color: var(--color-blue);
  font-weight: 700;
}

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

/* ========== 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-base);
}

.faq-item:hover {
  border-color: rgba(30, 108, 241, 0.3);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  background: var(--color-white);
  font-weight: 600;
  font-size: 0.95rem;
  gap: 16px;
  transition: background var(--transition-fast);
  width: 100%;
  text-align: left;
  color: var(--color-primary);
}

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

.faq-question i {
  font-size: 0.85rem;
  color: var(--color-gray);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

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

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

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

.faq-item.open .faq-answer {
  max-height: 500px;
}

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

.final-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 60% 50%, rgba(30,108,241,0.1) 0%, transparent 50%),
              radial-gradient(circle at 30% 50%, rgba(108,173,133,0.08) 0%, transparent 50%);
}

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

.final-cta h2 {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 12px;
}

.final-cta p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 32px;
}

.btn-final {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 18px 48px;
  background: var(--color-cta-gradient);
  color: var(--color-white);
  border-radius: var(--radius-xl);
  font-size: 1.15rem;
  font-weight: 700;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 25px rgba(30,108,241,0.35);
}

.btn-final:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 35px rgba(30,108,241,0.5);
}

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

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 36px;
}

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

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.6;
  color: rgba(255,255,255,0.5);
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  padding: 4px 0;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  flex-wrap: wrap;
  gap: 12px;
}

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

.footer-bottom-links a {
  color: rgba(255,255,255,0.4);
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: rgba(255,255,255,0.7);
}

/* ========== Back to Top ========== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--color-blue);
  color: var(--color-white);
  border-radius: 50%;
  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;
  border: none;
}

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

.back-to-top:hover {
  background: #1558c9;
  transform: translateY(-2px);
}

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

  .pricing-card.popular {
    transform: scale(1);
  }

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

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

  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

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

  .header-actions .btn-cta {
    display: none;
  }

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

  .mobile-nav {
    display: flex;
  }

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

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

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

  .section {
    padding: 60px 0;
  }

  .section-title 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;
  }

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

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

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

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .lang-switcher {
    display: none;
  }
}

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

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

  .btn-final {
    padding: 16px 36px;
    font-size: 1rem;
  }

  .container {
    padding: 0 16px;
  }
}