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

:root {
  --green: #34c759;
  --green-dark: #28a745;
  --blue: #007aff;
  --orange: #ff9500;
  --purple: #af52de;
  --pink: #ff2d55;
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --card-bg: #ffffff;
  --card-border: rgba(0, 0, 0, 0.06);
  --divider: rgba(0, 0, 0, 0.08);
  --max-width: 1080px;
  --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --bg-alt: #111111;
    --text: #f5f5f7;
    --text-secondary: #a1a1a6;
    --card-bg: #1c1c1e;
    --card-border: rgba(255, 255, 255, 0.08);
    --divider: rgba(255, 255, 255, 0.08);
  }
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display',
    'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ── Header ── */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 0.5px solid var(--divider);
}

@media (prefers-color-scheme: dark) {
  header {
    background: rgba(0, 0, 0, 0.72);
  }
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.02em;
}

.logo img {
  border-radius: 10px;
}

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

.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: color var(--transition);
}

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

.btn-download-nav {
  background: var(--green);
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 14px !important;
  font-weight: 600 !important;
  transition:
    background var(--transition),
    transform var(--transition);
}

.btn-download-nav:hover {
  background: var(--green-dark);
  transform: scale(1.03);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transition: var(--transition);
}

.menu-toggle.active span:first-child {
  transform: rotate(45deg) translate(2.5px, 2.5px);
}

.menu-toggle.active span:last-child {
  transform: rotate(-45deg) translate(2.5px, -2.5px);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--divider);
  padding: 16px 24px;
  z-index: 99;
  flex-direction: column;
  gap: 16px;
  opacity: 0;
  transform: translateY(-10px);
  transition:
    opacity var(--transition),
    transform var(--transition);
}

.mobile-menu.active {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu a {
  text-decoration: none;
  color: var(--text);
  font-size: 17px;
  font-weight: 500;
  padding: 8px 0;
}

@media (max-width: 680px) {
  .nav-links {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .mobile-menu {
    display: flex;
  }
}

/* ── Hero ── */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 140px 24px 80px;
  display: flex;
  align-items: center;
  gap: 60px;
}

.hero-content {
  flex: 1;
}

.hero-badge {
  display: inline-block;
  background: rgba(52, 199, 89, 0.12);
  color: var(--green);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 19px;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 480px;
  margin-bottom: 36px;
}

.hero-actions {
  margin-bottom: 16px;
}

.btn-appstore {
  display: inline-block;
  transition: transform var(--transition);
}

.btn-appstore:hover {
  transform: scale(1.04);
}

.appstore-badge {
  height: 52px;
  width: auto;
}

.badge-dark {
  display: none;
}

@media (prefers-color-scheme: dark) {
  .badge-light {
    display: none;
  }

  .badge-dark {
    display: inline;
  }
}

.hero-compat {
  font-size: 13px;
  color: var(--text-secondary);
}

.hero-phone {
  flex-shrink: 0;
}

.phone-img {
  width: 300px;
  height: auto;
  border-radius: 36px;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.12),
    0 0 0 0.5px rgba(0, 0, 0, 0.06);
}

@media (prefers-color-scheme: dark) {
  .phone-img {
    box-shadow:
      0 20px 60px rgba(0, 0, 0, 0.5),
      0 0 0 0.5px rgba(255, 255, 255, 0.08);
  }
}

/* ── Sections shared ── */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 56px;
}

.section-header h2 {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 19px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ── Features ── */
.features {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 100px 24px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 32px;
  transition:
    transform var(--transition),
    box-shadow var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

@media (prefers-color-scheme: dark) {
  .feature-card:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  }
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── How It Works ── */
.how-it-works {
  background: var(--bg-alt);
  padding: 100px 24px;
}

.steps {
  max-width: 640px;
  margin: 0 auto 60px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.step-number {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  background: var(--green);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.step-content p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.screenshot-gallery {
  display: flex;
  justify-content: center;
  gap: 24px;
  overflow-x: auto;
  padding: 0 24px;
}

.screenshot-gallery img {
  border-radius: 28px;
  box-shadow:
    0 16px 48px rgba(0, 0, 0, 0.1),
    0 0 0 0.5px rgba(0, 0, 0, 0.06);
  flex-shrink: 0;
}

@media (prefers-color-scheme: dark) {
  .screenshot-gallery img {
    box-shadow:
      0 16px 48px rgba(0, 0, 0, 0.5),
      0 0 0 0.5px rgba(255, 255, 255, 0.08);
  }
}

/* ── Pricing ── */
.pricing {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 100px 24px;
}

.comparison-table {
  max-width: 560px;
  margin: 0 auto;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
}

.comparison-header {
  display: flex;
  align-items: center;
  padding: 14px 20px;
  background: var(--bg-alt);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.comparison-row {
  display: flex;
  align-items: center;
  padding: 14px 20px;
  border-top: 1px solid var(--divider);
  font-size: 15px;
  color: var(--text-secondary);
}

.comparison-feature {
  flex: 1;
  color: var(--text);
  font-weight: 500;
}

.comparison-header .comparison-feature {
  color: var(--text-secondary);
  font-weight: 600;
}

.comparison-plan {
  width: 80px;
  text-align: center;
  flex-shrink: 0;
}

.comparison-plan.pro {
  color: var(--green);
  font-weight: 600;
}

.comparison-plan.check {
  font-size: 17px;
}

/* ── CTA ── */
.cta {
  text-align: center;
  padding: 100px 24px;
  background: var(--bg-alt);
}

.cta h2 {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.cta p {
  font-size: 19px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--divider);
  padding: 40px 24px;
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.footer-icon {
  border-radius: 8px;
}

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

.footer-links a {
  text-decoration: none;
  font-size: 14px;
  color: var(--text-secondary);
  transition: color var(--transition);
}

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

.copyright {
  font-size: 13px;
  color: var(--text-secondary);
  width: 100%;
  text-align: center;
  margin-top: 8px;
}

/* ── Animations ── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}

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

/* ── Responsive ── */
@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding: 120px 24px 60px;
    gap: 48px;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero h1 {
    font-size: 40px;
  }

  .hero-phone {
    order: -1;
  }

  .phone-img {
    width: 240px;
  }

  .section-header h2 {
    font-size: 32px;
  }

  .section-header p {
    font-size: 17px;
  }

  .features {
    padding: 72px 24px;
  }

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

  .how-it-works {
    padding: 72px 24px;
  }

  .screenshot-gallery img {
    width: 200px;
    height: auto;
  }

  .pricing {
    padding: 72px 24px;
  }

  .comparison-header,
  .comparison-row {
    padding: 12px 16px;
    font-size: 14px;
  }

  .comparison-plan {
    width: 64px;
  }

  .cta {
    padding: 72px 24px;
  }

  .cta h2 {
    font-size: 32px;
  }

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

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

@media (max-width: 400px) {
  .hero h1 {
    font-size: 34px;
  }

  .phone-img {
    width: 200px;
  }

  .screenshot-gallery {
    gap: 12px;
    margin-inline: -24px;
    scrollbar-width: none;
  }

  .screenshot-gallery img {
    width: 160px;
  }
}