/* ========== CSS Variables ========== */
:root {
  --color-primary: #0a090a;
  --color-secondary: #0b0a0b;
  --color-accent: #04f5d8;
  --color-text-muted: #a1a1a1;
  --color-text-dim: #7c7c84;
  --color-white: #ffffff;
  --color-card-bg: #131214;
  --color-card-border: #1e1e22;
  --color-accent-glow: rgba(4, 245, 216, 0.15);
  --color-accent-glow-strong: rgba(4, 245, 216, 0.3);
  --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;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(4, 245, 216, 0.1);
  --transition-base: 0.3s 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);
  background-color: var(--color-primary);
  color: var(--color-text-muted);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-white);
  line-height: 1.2;
  font-weight: 700;
}

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

.section-padding {
  padding: 100px 0;
}

.section-title {
  font-size: 2.25rem;
  text-align: center;
  margin-bottom: 16px;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-dim);
  font-size: 1.1rem;
  margin-bottom: 56px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: 0 0 24px rgba(4, 245, 216, 0.4);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
}

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

.btn-large {
  padding: 18px 48px;
  font-size: 1.15rem;
  border-radius: var(--radius-md);
}

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

.navbar.scrolled {
  background: rgba(10, 9, 10, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 10px 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

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

.nav-brand span {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 1px;
}

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

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

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

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

.lang-switcher-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid var(--color-card-border);
  color: var(--color-text-muted);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.88rem;
  transition: all var(--transition-base);
}

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

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

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

.lang-dropdown a {
  display: block;
  padding: 8px 20px;
  color: var(--color-text-muted);
  font-size: 0.88rem;
  transition: all var(--transition-base);
}

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

.nav-cta .btn {
  padding: 10px 24px;
  font-size: 0.92rem;
}

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

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: all var(--transition-base);
  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);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(10, 9, 10, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
}

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

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

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

.mobile-lang-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--color-card-border);
  width: 200px;
}

.mobile-lang-links a {
  font-size: 1rem;
}

/* ========== Hero Section ========== */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(4, 245, 216, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--color-accent-glow);
  border: 1px solid rgba(4, 245, 216, 0.2);
  border-radius: 50px;
  font-size: 0.88rem;
  color: var(--color-accent);
  margin-bottom: 28px;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 20px;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--color-white) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: var(--color-text-dim);
  margin-bottom: 40px;
  line-height: 1.8;
}

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

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

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

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

.feature-card:hover {
  border-color: rgba(4, 245, 216, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.feature-icon {
  width: 52px;
  height: 52px;
  background: var(--color-accent-glow);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.3rem;
  color: var(--color-accent);
}

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

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

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

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

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

.use-case-card:hover {
  border-color: rgba(4, 245, 216, 0.3);
  transform: translateY(-4px);
}

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

.use-case-card:nth-child(1) .use-case-icon {
  background: rgba(4, 245, 216, 0.12);
  color: #04f5d8;
}

.use-case-card:nth-child(2) .use-case-icon {
  background: rgba(168, 85, 247, 0.12);
  color: #a855f7;
}

.use-case-card:nth-child(3) .use-case-icon {
  background: rgba(251, 146, 60, 0.12);
  color: #fb923c;
}

.use-case-card:nth-child(4) .use-case-icon {
  background: rgba(96, 165, 250, 0.12);
  color: #60a5fa;
}

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

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

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

.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-card-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  position: relative;
  transition: all var(--transition-base);
}

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

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

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

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

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

.pricing-card .price-period {
  font-size: 0.9rem;
  color: var(--color-text-dim);
  margin-bottom: 28px;
}

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

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

.pricing-features li i {
  font-size: 0.85rem;
  width: 18px;
  text-align: center;
}

.pricing-features li i.fa-check {
  color: var(--color-accent);
}

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

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

/* ========== Testimonials Section ========== */
.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-white);
}

.rating-stars {
  color: #fbbf24;
  font-size: 1.1rem;
  margin: 4px 0;
}

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

.rating-bars {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 220px;
}

.rating-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--color-text-dim);
}

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

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

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

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

.testimonial-card {
  min-width: 100%;
  padding: 0 12px;
  box-sizing: border-box;
}

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

.testimonial-stars {
  color: #fbbf24;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.testimonial-inner p {
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 20px;
  color: var(--color-text-muted);
  font-style: italic;
}

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

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

.testimonial-author-info strong {
  display: block;
  color: var(--color-white);
  font-size: 0.95rem;
}

.testimonial-author-info span {
  font-size: 0.82rem;
  color: var(--color-text-dim);
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 28px;
}

.testimonial-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: var(--color-card-border);
  cursor: pointer;
  transition: all var(--transition-base);
}

.testimonial-dots button.active {
  background: var(--color-accent);
  width: 28px;
  border-radius: 5px;
}

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

.testimonial-tags span {
  padding: 6px 16px;
  background: var(--color-accent-glow);
  border: 1px solid rgba(4, 245, 216, 0.15);
  border-radius: 50px;
  font-size: 0.82rem;
  color: var(--color-accent);
}

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

.comparison-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

.comparison-table thead th {
  padding: 16px 20px;
  font-size: 0.95rem;
  color: var(--color-text-dim);
  text-align: center;
  border-bottom: 1px solid var(--color-card-border);
  font-weight: 600;
}

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

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

.comparison-table tbody td {
  padding: 16px 20px;
  text-align: center;
  border-bottom: 1px solid var(--color-card-border);
  font-size: 0.92rem;
}

.comparison-table tbody td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--color-white);
}

.comparison-table tbody td.highlight {
  background: rgba(4, 245, 216, 0.04);
}

.comparison-table tbody td i.fa-check {
  color: var(--color-accent);
  font-size: 1rem;
}

.comparison-table tbody td i.fa-xmark {
  color: var(--color-text-dim);
  font-size: 1rem;
}

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

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

.faq-item.active {
  border-color: rgba(4, 245, 216, 0.3);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  gap: 16px;
  font-family: var(--font-body);
}

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

.faq-item.active .faq-question i {
  transform: rotate(45deg);
}

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

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

/* ========== Final CTA Section ========== */
.final-cta {
  background: linear-gradient(135deg, rgba(4, 245, 216, 0.08) 0%, rgba(4, 245, 216, 0.02) 50%, rgba(168, 85, 247, 0.06) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(4, 245, 216, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

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

.final-cta h2 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.final-cta p {
  font-size: 1.15rem;
  color: var(--color-text-dim);
  margin-bottom: 40px;
}

/* ========== Footer ========== */
.footer {
  background: var(--color-secondary);
  padding: 48px 0 28px;
  border-top: 1px solid var(--color-card-border);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-bottom: 12px;
}

.footer-brand img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.footer-brand span {
  color: var(--color-white);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 1px;
}

.footer-left p {
  font-size: 0.88rem;
  color: var(--color-text-dim);
  max-width: 280px;
}

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

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

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

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

.footer-bottom {
  border-top: 1px solid var(--color-card-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--color-text-dim);
}

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

.footer-legal a {
  color: var(--color-text-dim);
}

.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(--color-accent);
  color: var(--color-primary);
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition-base);
  z-index: 900;
  box-shadow: 0 4px 16px rgba(4, 245, 216, 0.3);
}

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

.back-to-top:hover {
  background: var(--color-white);
  transform: translateY(-2px);
}

/* ========== Scroll Animations ========== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
  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:last-child {
    grid-column: 1 / -1;
    max-width: 400px;
    margin: 0 auto;
  }
}

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

  .section-padding {
    padding: 72px 0;
  }

  .section-title {
    font-size: 1.85rem;
  }

  .nav-links {
    display: none;
  }

  .nav-right .lang-switcher,
  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-menu {
    display: flex;
  }

  .hero h1 {
    font-size: 2.3rem;
  }

  .hero p {
    font-size: 1.05rem;
  }

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

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

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

  .pricing-card:last-child {
    max-width: none;
  }

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

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

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

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

  .final-cta h2 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.9rem;
  }

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

  .btn-large {
    padding: 16px 36px;
    font-size: 1.05rem;
  }
}