/* ================================================================
   GUIA AZUL — Portal de Marketing | style.css v1.0
   ================================================================ */

/* ----------------------------------------------------------------
   1. RESET & CUSTOM PROPERTIES
---------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Brand Colors */
  --navy-950: #02070f;
  --navy-900: #060e1e;
  --navy-800: #0a1628;
  --navy-700: #0d1f3c;
  --teal-700: #0f766e;
  --teal-600: #0d9488;
  --teal-500: #14b8a6;
  --teal-400: #2dd4bf;
  --sky-500: #0ea5e9;
  --sky-400: #38bdf8;

  /* Neutrals */
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-700: #334155;
  --gray-900: #0f172a;

  /* Semantic Tokens */
  --bg-primary: var(--gray-50);
  --bg-card: var(--white);
  --text-primary: var(--gray-900);
  --text-muted: var(--gray-500);
  --border: var(--gray-200);
  --accent: var(--teal-700);

  /* Spacing */
  --section-padding: clamp(64px, 8vw, 120px);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08), 0 1px 4px rgba(0,0,0,.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.12), 0 4px 12px rgba(0,0,0,.06);
  --shadow-xl: 0 24px 64px rgba(0,0,0,.16), 0 8px 24px rgba(0,0,0,.08);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

/* ----------------------------------------------------------------
   2. LAYOUT / CONTAINER
---------------------------------------------------------------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 48px);
}

/* ----------------------------------------------------------------
   3. TYPOGRAPHY UTILITIES
---------------------------------------------------------------- */
.section-header {
  text-align: center;
  margin-bottom: clamp(40px, 6vw, 72px);
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal-600);
  background: rgba(13, 148, 136, .08);
  border: 1px solid rgba(13, 148, 136, .2);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--gray-900);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto;
}

.gradient-text {
  background: linear-gradient(135deg, var(--teal-500) 0%, var(--sky-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ----------------------------------------------------------------
   4. HEADER
---------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}

.site-header.scrolled {
  background: rgba(6, 14, 30, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255,255,255,.06);
  padding: 14px 0;
}

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

.logo-link {
  display: flex;
  align-items: center;
}

.logo {
  height: 36px;
  width: auto;
}

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

.header-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,.75);
  transition: color 0.2s;
}

.header-nav a:hover {
  color: #fff;
}

.btn-nav {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15);
  padding: 8px 20px;
  border-radius: 100px;
  transition: background 0.2s, border-color 0.2s !important;
}

.btn-nav:hover {
  background: rgba(255,255,255,.18) !important;
  border-color: rgba(255,255,255,.25) !important;
}

/* ----------------------------------------------------------------
   5. HERO
---------------------------------------------------------------- */
.hero {
  position: relative;
  background: var(--navy-900);
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 90px;
  padding-bottom: 80px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: clamp(40px, 6vw, 96px);
}

/* Decorative gradient orbs */
.hero-gradient-orbs {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.35;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: var(--teal-700);
  top: -200px;
  right: -100px;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: var(--sky-500);
  bottom: -100px;
  left: 30%;
  opacity: 0.2;
}

/* Hero text */
.hero-text {
  position: relative;
  z-index: 2;
  max-width: 580px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--teal-400);
  background: rgba(20, 184, 166, .1);
  border: 1px solid rgba(20, 184, 166, .25);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.badge-dot {
  width: 7px;
  height: 7px;
  background: var(--teal-400);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: #fff;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: rgba(255,255,255,.65);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 40px;
}

/* Hero CTAs */
.hero-ctas {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* App Store Button */
.btn-appstore {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #000;
  border: 1.5px solid rgba(255,255,255,.15);
  color: #fff;
  padding: 12px 22px;
  border-radius: 14px;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  flex-shrink: 0;
}

.btn-appstore:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,.5);
  background: #111;
}

.btn-appstore--dark {
  background: #000;
  border-color: rgba(255,255,255,.2);
}

.btn-appstore svg {
  flex-shrink: 0;
}

.btn-appstore-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.btn-appstore-sub {
  font-size: 0.65rem;
  font-weight: 400;
  opacity: 0.8;
  letter-spacing: 0.02em;
}

.btn-appstore-main {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* Android Em Breve */
.btn-android-soon {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,.06);
  border: 1.5px solid rgba(255,255,255,.12);
  color: rgba(255,255,255,.55);
  padding: 12px 20px;
  border-radius: 14px;
  flex-shrink: 0;
  cursor: default;
}

.btn-android-soon svg {
  opacity: 0.6;
  flex-shrink: 0;
}

.btn-android-soon > div {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.android-soon-label {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.android-soon-badge {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #f59e0b;
  opacity: 1;
}

/* Hero Visual / Phone */
.hero-visual {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  align-items: center;
  padding-right: 20px;
}

/* ----------------------------------------------------------------
   6. PHONE MOCKUP
---------------------------------------------------------------- */
.phone-mockup {
  position: relative;
  display: inline-block;
  flex-shrink: 0;
}

.phone-frame {
  width: 270px;
  height: 582px;
  background: linear-gradient(160deg, #2c2c2e 0%, #1c1c1e 60%, #141414 100%);
  border-radius: 48px;
  padding: 14px;
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.12),
    0 0 0 1px rgba(0,0,0,.6),
    0 40px 100px rgba(0,0,0,.55),
    0 12px 32px rgba(0,0,0,.35);
  position: relative;
}

/* Screen inner wrapper */
.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 36px;
  overflow: hidden;
  background: #000;
  position: relative;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

/* Dynamic Island */
.phone-notch {
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  width: 118px;
  height: 33px;
  background: #1c1c1e;
  border-radius: 24px;
  z-index: 10;
  box-shadow: inset 0 1px 2px rgba(0,0,0,.4);
}

/* Home indicator */
.phone-home-indicator {
  position: absolute;
  bottom: 9px;
  left: 50%;
  transform: translateX(-50%);
  width: 118px;
  height: 5px;
  background: rgba(255,255,255,.28);
  border-radius: 3px;
  z-index: 10;
}

/* Side buttons */
.phone-btn {
  position: absolute;
  background: linear-gradient(180deg, #2c2c2e, #1a1a1a);
  border-radius: 3px 0 0 3px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
}

.phone-btn-vol-up {
  left: -4px;
  top: 120px;
  width: 4px;
  height: 36px;
  border-radius: 3px 0 0 3px;
}

.phone-btn-vol-down {
  left: -4px;
  top: 168px;
  width: 4px;
  height: 36px;
  border-radius: 3px 0 0 3px;
}

.phone-btn-power {
  right: -4px;
  top: 140px;
  width: 4px;
  height: 60px;
  border-radius: 0 3px 3px 0;
}

/* Hero phone: slightly larger + floating animation */
.hero-phone .phone-frame {
  width: 280px;
  height: 604px;
  animation: float-phone 5s ease-in-out infinite;
}

@keyframes float-phone {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-14px) rotate(0.5deg); }
}

/* Glow under hero phone */
.hero-phone::after {
  content: '';
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 40px;
  background: var(--teal-600);
  border-radius: 50%;
  filter: blur(30px);
  opacity: 0.35;
}

/* Carousel phones: smaller */
.screenshots-carousel .phone-frame {
  width: 218px;
  height: 470px;
  border-radius: 42px;
}

.screenshots-carousel .phone-notch {
  width: 96px;
  height: 28px;
  top: 18px;
}

.screenshots-carousel .phone-home-indicator {
  width: 96px;
  bottom: 8px;
}

.screenshots-carousel .phone-btn-vol-up { top: 96px; height: 30px; }
.screenshots-carousel .phone-btn-vol-down { top: 138px; height: 30px; }
.screenshots-carousel .phone-btn-power { top: 110px; height: 50px; }

/* ----------------------------------------------------------------
   7. STATS STRIP
---------------------------------------------------------------- */
.stats-strip {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
}

.stats-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 40px;
  flex: 1;
  min-width: 140px;
}

.stat-number {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--teal-700), var(--sky-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  text-align: center;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  flex-shrink: 0;
}

/* ----------------------------------------------------------------
   8. SCREENSHOTS SECTION
---------------------------------------------------------------- */
.screenshots {
  padding: var(--section-padding) 0;
  background: var(--gray-50);
  overflow: hidden;
}

.screenshots-carousel {
  position: relative;
  overflow: hidden;
  padding: 20px 0 36px;
  /* Fade edges */
  mask-image: linear-gradient(to right, transparent 0%, black 5%, black 95%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 5%, black 95%, transparent 100%);
}

.screenshots-track {
  display: flex;
  gap: 24px;
  transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  padding: 0 40px;
  will-change: transform;
}

.screenshot-slide {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
  width: 218px;
}

.screenshot-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray-500);
  text-align: center;
  letter-spacing: 0.01em;
}

/* Carousel Controls */
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 8px;
}

.carousel-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: #fff;
  color: var(--gray-700);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.carousel-btn:hover {
  background: var(--gray-900);
  color: #fff;
  border-color: var(--gray-900);
  transform: scale(1.05);
}

.carousel-dots {
  display: flex;
  gap: 8px;
  align-items: center;
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gray-300);
  transition: all 0.25s;
  padding: 0;
}

.carousel-dot.active {
  background: var(--teal-600);
  width: 24px;
  border-radius: 4px;
}

/* ----------------------------------------------------------------
   9. FEATURES SECTION
---------------------------------------------------------------- */
.features {
  padding: var(--section-padding) 0;
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(13, 148, 136, .25);
}

.feature-card--highlight {
  background: linear-gradient(135deg, var(--navy-800) 0%, var(--navy-700) 100%);
  border-color: rgba(20, 184, 166, .2);
  color: #fff;
}

.feature-card--highlight p {
  color: rgba(255,255,255,.65);
}

.feature-card--highlight .feature-icon {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.12);
  color: var(--teal-400);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(13, 148, 136, .08);
  border: 1px solid rgba(13, 148, 136, .15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal-700);
  margin-bottom: 20px;
  flex-shrink: 0;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  color: inherit;
}

.feature-card p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-muted);
}

/* ----------------------------------------------------------------
   10. AVAILABILITY SECTION
---------------------------------------------------------------- */
.availability {
  padding: var(--section-padding) 0;
  background: var(--gray-50);
}

.availability-card {
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-700) 100%);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0;
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255,255,255,.06);
}

.availability-text {
  padding: clamp(40px, 6vw, 72px);
}

.availability-text h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
}

.availability-text p {
  font-size: 1.05rem;
  color: rgba(255,255,255,.6);
  max-width: 420px;
  margin-bottom: 36px;
  line-height: 1.65;
}

.availability-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.android-coming-card {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,.06);
  border: 1.5px solid rgba(255,255,255,.1);
  color: rgba(255,255,255,.5);
  padding: 12px 20px;
  border-radius: 14px;
  cursor: default;
}

.android-icon {
  opacity: 0.55;
  display: flex;
  align-items: center;
}

.android-coming-card > div {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.android-coming-label {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.android-coming-badge {
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #f59e0b;
}

.availability-visual {
  width: clamp(240px, 28vw, 400px);
  height: 100%;
  overflow: hidden;
  position: relative;
  align-self: stretch;
}

.banner-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.85;
  display: block;
}

/* ----------------------------------------------------------------
   11. CONTACT SECTION
---------------------------------------------------------------- */
.contact {
  padding: var(--section-padding) 0;
  background: var(--white);
}

.contact-card {
  max-width: 640px;
  margin: 0 auto;
  background: var(--gray-50);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xl);
  padding: clamp(36px, 5vw, 60px);
  display: flex;
  gap: 28px;
  align-items: flex-start;
  box-shadow: var(--shadow-md);
  transition: box-shadow 0.25s;
}

.contact-card:hover {
  box-shadow: var(--shadow-lg);
}

.contact-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--teal-700), var(--teal-600));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(13, 148, 136, .35);
}

.contact-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.contact-content > p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  line-height: 1.6;
}

.contact-email {
  display: inline-flex;
  align-items: center;
  font-size: 1rem;
  font-weight: 600;
  color: var(--teal-700);
  background: rgba(13, 148, 136, .06);
  border: 1px solid rgba(13, 148, 136, .2);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  transition: background 0.2s, transform 0.2s;
  margin-bottom: 14px;
  word-break: break-all;
}

.contact-email:hover {
  background: rgba(13, 148, 136, .12);
  transform: translateX(2px);
}

.contact-hint {
  font-size: 0.8rem;
  color: var(--gray-400);
  line-height: 1.5;
}

/* ----------------------------------------------------------------
   12. FOOTER
---------------------------------------------------------------- */
.site-footer {
  background: var(--navy-950);
  color: rgba(255,255,255,.6);
}

.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
  padding-top: 64px;
  padding-bottom: 48px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-logo {
  height: 32px;
  width: auto;
  opacity: 0.9;
}

.footer-tagline {
  font-size: 0.85rem;
  color: rgba(255,255,255,.4);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.35);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 0.88rem;
  color: rgba(255,255,255,.55);
  transition: color 0.2s;
}

.footer-col a:hover {
  color: #fff;
}

.footer-platform {
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 7px;
}

.footer-platform::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.footer-platform.available {
  color: var(--teal-400);
}

.footer-platform.available::before {
  background: var(--teal-400);
}

.footer-platform.soon {
  color: rgba(255,255,255,.3);
}

.footer-platform.soon::before {
  background: rgba(255,255,255,.2);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 20px 0;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,.25);
  text-align: center;
}

/* ----------------------------------------------------------------
   13. FADE-IN ANIMATION (IntersectionObserver)
---------------------------------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ----------------------------------------------------------------
   14. MEDIA QUERIES
---------------------------------------------------------------- */
@media (max-width: 1024px) {
  .availability-card {
    grid-template-columns: 1fr;
  }
  .availability-visual {
    width: 100%;
    height: 260px;
  }
  .banner-img {
    object-position: center 20%;
  }
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
  }
  .hero-text {
    max-width: 100%;
  }
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-ctas {
    justify-content: center;
  }
  .hero-visual {
    padding-right: 0;
  }
  .hero-phone .phone-frame {
    width: 240px;
    height: 517px;
  }
}

@media (max-width: 768px) {
  .header-nav a:not(.btn-nav) {
    display: none;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .stat-divider {
    display: none;
  }
  .stat-item {
    padding: 12px 20px;
  }
}

@media (max-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  .footer-links {
    grid-template-columns: 1fr;
  }
  .hero-phone .phone-frame {
    width: 220px;
    height: 473px;
  }
  .hero-title {
    font-size: 2.5rem;
  }
}

@media (max-width: 480px) {
  .hero-ctas {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }
  .btn-appstore,
  .btn-android-soon {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
}