/* ===== CSS Variables ===== */
:root {
  --color-primary: #9333ea;
  --color-primary-dark: #7e22ce;
  --color-primary-light: #f3e8ff;
  --color-cta: #1a1f36;
  --color-cta-hover: #2d3452;
  --color-accent: #48bb78;
  --color-accent-light: #e6f7ee;
  --color-secondary: #4a90d9;
  --color-secondary-light: #e8f0fb;
  --color-text: #1a202c;
  --color-text-light: #718096;
  --color-bg: #ffffff;
  --color-bg-cool: #f7f8fa;
  --color-bg-accent: #f3f0f9;
  --color-border: #e2e8f0;
  --font-heading: 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --max-width: 1140px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  line-height: 1.6;
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--color-cta);
  color: #fff;
  border-color: var(--color-cta);
}

.btn-primary:hover {
  background: var(--color-cta-hover);
  border-color: var(--color-cta-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--color-cta);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg-cool);
  border-color: var(--color-cta);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.1rem;
}

.btn-block {
  width: 100%;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--color-text);
}

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

.nav-links a {
  font-weight: 500;
  color: var(--color-text-light);
  transition: color var(--transition);
  font-size: 0.95rem;
}

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

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

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

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

/* ===== Hero ===== */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #f7f8fa 0%, #fff 50%, var(--color-primary-light) 100%);
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-light);
  margin-bottom: 32px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.hero-note {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* Hero Illustration — Phone Mockup */
.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-phone-mockup {
  position: relative;
  width: 380px;
  height: 440px;
}

.phone-frame {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 260px;
  height: 400px;
  background: #1a1f36;
  border-radius: 32px;
  padding: 10px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2), 0 4px 12px rgba(0,0,0,0.1);
}

.phone-notch {
  width: 80px;
  height: 6px;
  background: #2d3452;
  border-radius: 3px;
  margin: 6px auto 8px;
}

.phone-screen {
  width: 100%;
  height: calc(100% - 26px);
  background: #fff;
  border-radius: 22px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: #fafafa;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text);
}

.app-nav-icon {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.app-content {
  flex: 1;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
}

.app-cover-img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  object-position: top;
  border-radius: 8px;
}

.app-text-block {
  padding: 8px 0;
}

.app-pinyin-line {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.app-annotated {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.app-py {
  font-size: 0.5rem;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: 1px;
}

.app-hz {
  font-size: 1.2rem;
  color: var(--color-text);
}

.app-translation-line {
  font-size: 0.65rem;
  color: var(--color-text-light);
  font-style: italic;
  padding-left: 6px;
  border-left: 2px solid var(--color-accent);
}

.app-read-aloud {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px;
  background: var(--color-cta);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 0 0 22px 22px;
}

/* Floating elements */
.hero-float {
  position: absolute;
  border-radius: 12px;
  padding: 8px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  animation: float 6s ease-in-out infinite;
  z-index: 3;
}

.float-pinyin {
  top: 10px;
  right: 0;
  background: var(--color-primary);
  color: #fff;
  animation-delay: 0s;
}

.float-translate {
  top: 60px;
  left: -10px;
  background: var(--color-accent);
  color: #fff;
  animation-delay: 2s;
}

.float-audio {
  bottom: 30px;
  right: -10px;
  background: var(--color-cta);
  color: #fff;
  animation-delay: 4s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.float-audio svg {
  width: 14px;
  height: 14px;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ===== Social Proof ===== */
.social-proof {
  padding: 24px 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.social-proof p {
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.95rem;
  font-weight: 500;
}

/* ===== Section Titles ===== */
.section-title {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

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

/* ===== How It Works ===== */
.how-it-works {
  padding: 100px 0;
  background: var(--color-bg-cool);
}

.how-it-works .section-title {
  margin-bottom: 32px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.step-card {
  text-align: center;
  padding: 0 16px;
}

.step-img-wrapper {
  width: 100%;
  height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.step-illustration {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius);
}

.step-num {
  font-weight: 700;
  color: var(--color-text);
}

.step-card h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  font-weight: 600;
}

.step-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== Features ===== */
.features {
  padding: 100px 0;
  background: var(--color-bg-accent);
}

.features .section-title {
  margin-bottom: 60px;
}

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

.feature-card {
  background: var(--color-bg);
  padding: 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

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

.feature-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

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

/* ===== Feature Highlights ===== */
.highlights {
  padding: 100px 0;
  background: var(--color-bg);
}

.highlight {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}

.highlight:last-child {
  margin-bottom: 0;
}

.highlight-text h3 {
  font-size: 1.6rem;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.highlight-text p {
  color: var(--color-text-light);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* Mockups */
.mockup-phone {
  width: 220px;
  height: 380px;
  background: #1a1a2e;
  border-radius: 28px;
  padding: 12px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
}

.mockup-screen {
  width: 100%;
  height: 100%;
  background: #f5f5f5;
  border-radius: 18px;
  overflow: hidden;
}

.mockup-camera-ui {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px 12px;
  background: linear-gradient(180deg, #2d3748 0%, #4a5568 100%);
}

.viewfinder {
  flex: 1;
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 8px;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}

.viewfinder-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  opacity: 0.85;
}

.viewfinder::before, .viewfinder::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border-color: var(--color-primary);
}

.viewfinder::before {
  top: 8px; left: 8px;
  border-top: 3px solid; border-left: 3px solid;
}

.viewfinder::after {
  bottom: 8px; right: 8px;
  border-bottom: 3px solid; border-right: 3px solid;
}

.capture-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 4px solid #fff;
  background: rgba(255,255,255,0.2);
  margin: 0 auto 12px;
}

.thumbnail-strip {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.thumb {
  width: 36px;
  height: 48px;
  background: rgba(255,255,255,0.15);
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.3);
}

.thumb-preview {
  display: flex;
  align-items: center;
  justify-content: center;
}

.thumb-preview svg {
  width: 100%;
  height: 100%;
}

.mockup-page {
  background: #fff;
  padding: 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  max-width: 340px;
  margin: 0 auto;
}

.annotated-line {
  font-size: 2rem;
  display: flex;
  gap: 4px;
  justify-content: center;
  margin-bottom: 16px;
  font-family: 'Noto Serif SC', serif;
}

.annotated-line rt {
  font-size: 0.5em;
  color: var(--color-primary);
  font-family: var(--font-body);
}

.translation-line {
  color: var(--color-text-light);
  font-style: italic;
  font-size: 0.95rem;
  padding-top: 12px;
  padding-left: 12px;
  border-left: 3px solid var(--color-accent);
  text-align: left;
}

.mockup-share {
  max-width: 300px;
  margin: 0 auto;
}

.share-dialog {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 28px;
}

.share-header {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.2rem;
  margin-bottom: 16px;
}

.share-input {
  background: #f7fafc;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 12px;
}

.share-permissions {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.perm-badge {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  background: #f7fafc;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
}

.perm-badge.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.share-btn {
  background: var(--color-cta);
  color: #fff;
  text-align: center;
  padding: 10px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-family: var(--font-heading);
  font-size: 0.9rem;
}

/* ===== Pricing ===== */
.pricing {
  padding: 100px 0;
  background: var(--color-bg-cool);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 760px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--color-bg);
  padding: 36px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--color-border);
  position: relative;
}

.pricing-card-featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: scale(1.03);
}

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

.pricing-header {
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.pricing-header h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.price-amount {
  font-size: 2.8rem;
  font-weight: 700;
  font-family: var(--font-heading);
}

.price-period {
  color: var(--color-text-light);
  font-size: 1rem;
}

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

.pricing-features li {
  padding: 8px 0;
  padding-left: 28px;
  position: relative;
  font-size: 0.95rem;
  color: var(--color-text);
}

.pricing-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 16px;
  height: 16px;
  background: var(--color-primary-light);
  border-radius: 50%;
}

.pricing-features li::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 18px;
  width: 8px;
  height: 5px;
  border-left: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: rotate(-45deg);
}

.pricing-note {
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.85rem;
  margin-top: 12px;
}

/* ===== About ===== */
.about {
  padding: 100px 0;
  background: var(--color-bg-accent);
}

.about-intro {
  text-align: center;
  font-size: 1.15rem;
  color: var(--color-text-light);
  max-width: 700px;
  margin: 0 auto 60px;
  line-height: 1.8;
}

.about-team {
  text-align: center;
  margin-bottom: 48px;
}

.about-team h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.about-team p {
  color: var(--color-text-light);
  font-size: 1.05rem;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 60px;
}

.value-card {
  background: var(--color-bg);
  padding: 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.value-card h4 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--color-primary);
}

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

.about-mission {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.about-mission h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.about-mission p {
  color: var(--color-text-light);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq {
  padding: 100px 0;
  background: var(--color-bg);
}

.faq .section-title {
  margin-bottom: 48px;
}

.faq-list {
  max-width: 700px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-text);
  text-align: left;
}

.faq-chevron {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--color-text-light);
}

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

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

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

/* ===== Final CTA ===== */
.final-cta {
  padding: 100px 0;
  background: linear-gradient(135deg, #e8636b 0%, #d4545c 50%, #c44a52 100%);
  text-align: center;
  color: #fff;
}

.final-cta h2 {
  font-size: 2.4rem;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.final-cta > .container > p:first-of-type {
  font-size: 1.15rem;
  opacity: 0.9;
  margin-bottom: 32px;
}

.final-cta .btn-primary {
  background: #fff;
  color: #d4545c;
  border-color: #fff;
}

.final-cta .btn-primary:hover {
  background: #f7f7f7;
  border-color: #f7f7f7;
}

.final-cta-note {
  margin-top: 16px;
  font-size: 0.9rem;
  opacity: 0.8;
}

/* ===== Footer ===== */
.footer {
  padding: 60px 0 0;
  background: var(--color-cta);
  color: #cbd5e0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-logo .logo-text {
  color: #fff;
}

.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.7;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  font-size: 0.9rem;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.footer-col a:hover {
  opacity: 1;
  color: var(--color-primary-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 0.85rem;
  opacity: 0.6;
}

.footer-bottom a {
  color: inherit;
}

.footer-bottom a:hover {
  color: var(--color-primary-light);
}

/* ===== Scroll Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

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

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

  .nav-toggle {
    display: flex;
  }

  .navbar.nav-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .navbar.nav-open .nav-cta {
    display: inline-flex;
    position: absolute;
    top: calc(72px + var(--nav-height, 200px));
    left: 24px;
    right: 24px;
  }

  .hero {
    padding: 110px 0 60px;
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

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

  .hero-buttons {
    justify-content: center;
  }

  .hero-phone-mockup {
    width: 300px;
    height: 380px;
    margin: 0 auto;
  }

  .phone-frame {
    width: 220px;
    height: 350px;
  }

  .hero-float {
    display: none;
  }

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

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

  .highlight {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .highlight-right {
    direction: ltr;
  }

  .highlight-right .highlight-text {
    order: -1;
  }

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

  .pricing-card-featured {
    transform: none;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .section-title {
    font-size: 1.8rem;
  }

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

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

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

  .btn-lg {
    width: 100%;
  }

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

  .hero-phone-mockup {
    width: 260px;
    height: 340px;
  }

  .phone-frame {
    width: 200px;
    height: 320px;
  }

  .step-illustration {
    height: auto;
  }
}