/* ============================================
   IVION Landing Page — Styles
   Light Theme | No Build | Pure CSS
   ============================================ */

/* --- CSS Variables --- */
:root {
  --white: #FFFFFF;
  --bg-secondary: #F7F9FC;
  --primary: #3B82F6;
  --primary-hover: #2563EB;
  --primary-light: #DBEAFE;
  --primary-bg: #EFF6FF;
  --text: #111827;
  --text-secondary: #374151;
  --text-muted: #6B7280;
  --border: #E5E7EB;
  --success: #22C55E;
  --warning: #F59E0B;
  --error: #EF4444;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 2px 8px rgba(0,0,0,.05);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12);
  --transition: 200ms ease;
  --max-width: 1200px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: none; }

/* --- Utility --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: 10px; font-weight: 600; font-size: 1rem;
  transition: all var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-secondary { background: var(--white); color: var(--primary); border: 2px solid var(--primary); }
.btn-secondary:hover { background: var(--primary-bg); }
.btn-large { padding: 18px 36px; font-size: 1.1rem; border-radius: 12px; }
.btn-small { padding: 10px 20px; font-size: 0.875rem; }

/* --- Badge --- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 999px; font-size: 0.8rem; font-weight: 600;
  background: var(--primary-light); color: var(--primary);
}
.badge-success { background: #D1FAE5; color: #065F46; }
.badge-warning { background: #FEF3C7; color: #92400E; }

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow); }
.navbar .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.5rem; font-weight: 800; color: var(--primary);
}
.nav-logo svg { width: 32px; height: 32px; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 0.9rem; font-weight: 500; color: var(--text-secondary);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--primary); }
.nav-cta { display: flex; align-items: center; gap: 12px; }

/* Hamburger */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; padding: 8px;
}
.hamburger span {
  width: 24px; height: 2px; background: var(--text); border-radius: 2px;
  transition: all var(--transition);
}
.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: 72px; left: 0; right: 0; bottom: 0;
  background: var(--white); padding: 24px; z-index: 99;
  flex-direction: column; gap: 16px;
}
.mobile-menu.active { display: flex; }
.mobile-menu a {
  font-size: 1.1rem; font-weight: 500; color: var(--text-secondary);
  padding: 12px 0; border-bottom: 1px solid var(--border);
}
.mobile-menu .btn { margin-top: 16px; width: 100%; }

/* ============================================
   LAUNCH BANNER
   ============================================ */
.launch-banner {
  padding: 60px 0 50px;
  background: linear-gradient(135deg, #1E40AF 0%, var(--primary) 50%, #60A5FA 100%);
  color: var(--white); text-align: center;
}
.launch-content { max-width: 640px; margin: 0 auto; }
.launch-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 16px; border-radius: 999px;
  background: rgba(255,255,255,0.2); font-size: 0.8rem; font-weight: 600;
  margin-bottom: 16px;
}
.launch-title { font-size: 2rem; font-weight: 800; margin-bottom: 12px; }
.launch-text { font-size: 1.05rem; opacity: 0.9; margin-bottom: 32px; line-height: 1.6; }

/* Countdown */
.countdown {
  display: flex; align-items: center; justify-content: center;
  gap: 8px; margin-bottom: 36px;
}
.countdown-item {
  display: flex; flex-direction: column; align-items: center;
  background: rgba(255,255,255,0.15); backdrop-filter: blur(4px);
  border-radius: 12px; padding: 16px 20px; min-width: 80px;
}
.countdown-number {
  font-size: 2.2rem; font-weight: 800; line-height: 1;
  font-variant-numeric: tabular-nums;
}
.countdown-label {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em;
  opacity: 0.8; margin-top: 4px;
}
.countdown-separator {
  font-size: 1.8rem; font-weight: 700; opacity: 0.5;
}

/* Notify form */
.notify-form { max-width: 480px; margin: 0 auto; }
.notify-input-group {
  display: flex; gap: 8px; background: rgba(255,255,255,0.15);
  border-radius: 12px; padding: 6px 6px 6px 16px;
  backdrop-filter: blur(4px);
}
.notify-input-group input {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--white); font-size: 1rem; font-family: var(--font);
  padding: 12px 0; min-width: 0;
}
.notify-input-group input::placeholder { color: rgba(255,255,255,0.6); }
.notify-input-group input:focus { outline: none; }
.notify-input-group input:-webkit-autofill,
.notify-input-group input:-webkit-autofill:hover,
.notify-input-group input:-webkit-autofill:focus {
  -webkit-box-shadow: 0 0 0 1000px transparent inset;
  -webkit-text-fill-color: var(--white);
  transition: background-color 5000s ease-in-out 0s;
}
.notify-hint {
  font-size: 0.75rem; opacity: 0.7; margin-top: 10px;
}

/* Success message */
.notify-success {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 12px;
  background: rgba(255,255,255,0.2); font-weight: 600;
  backdrop-filter: blur(4px);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  padding: 140px 0 80px; background: var(--white);
}
.hero .container {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.hero-content { max-width: 560px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 999px;
  background: var(--primary-bg); color: var(--primary);
  font-size: 0.85rem; font-weight: 600; margin-bottom: 24px;
}
.hero-badge svg { width: 16px; height: 16px; }
.hero h1 {
  font-size: 3.2rem; font-weight: 800; line-height: 1.15;
  color: var(--text); margin-bottom: 20px;
}
.hero h1 span { color: var(--primary); }
.hero p {
  font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 32px;
  line-height: 1.7;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats { display: flex; gap: 40px; }
.hero-stat { text-align: left; }
.hero-stat strong { display: block; font-size: 1.8rem; font-weight: 800; color: var(--primary); }
.hero-stat span { font-size: 0.85rem; color: var(--text-muted); }

/* Phone mockup */
.hero-visual { display: flex; justify-content: center; align-items: center; }
.phone-frame {
  width: 300px; height: 600px; background: #1E293B; border-radius: 40px;
  padding: 14px; box-shadow: var(--shadow-lg); position: relative;
}
.phone-notch {
  position: absolute; top: 14px; left: 50%; transform: translateX(-50%);
  width: 130px; height: 30px; background: #1E293B; border-radius: 0 0 18px 18px;
  z-index: 2;
}
.phone-screen {
  width: 100%; height: 100%; background: var(--bg-secondary); border-radius: 28px;
  overflow: hidden; position: relative;
}
.phone-status {
  height: 48px; display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 600; color: var(--text);
}
.phone-content { padding: 0 16px; }
.phone-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.phone-avatar {
  width: 44px; height: 44px; border-radius: 22px;
  background: var(--primary-light); display: flex; align-items: center;
  justify-content: center; color: var(--primary); font-weight: 700; font-size: 1.1rem;
}
.phone-greeting { font-size: 0.95rem; font-weight: 700; }
.phone-sub { font-size: 0.7rem; color: var(--text-muted); }
.phone-card {
  background: var(--white); border-radius: 14px; padding: 14px;
  margin-bottom: 12px; display: flex; align-items: center; gap: 12px;
  box-shadow: 0 1px 4px rgba(0,0,0,.04);
}
.phone-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; flex-shrink: 0;
}
.phone-icon-blue { background: var(--primary-light); color: var(--primary); }
.phone-icon-green { background: #D1FAE5; color: #059669; }
.phone-icon-orange { background: #FEF3C7; color: #D97706; }
.phone-icon-purple { background: #EDE9FE; color: #7C3AED; }
.phone-text-title { font-size: 0.8rem; font-weight: 600; }
.phone-text-sub { font-size: 0.65rem; color: var(--text-muted); }
.phone-tab-bar {
  position: absolute; bottom: 0; left: 0; right: 0; height: 60px;
  background: var(--white); border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-around;
  border-radius: 0 0 28px 28px;
}
.phone-tab {
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  font-size: 0.55rem; color: var(--text-muted);
}
.phone-tab.active { color: var(--primary); }
.phone-tab svg { width: 20px; height: 20px; }

/* ============================================
   PROBLEM/SOLUTION
   ============================================ */
.problem-section { padding: 100px 0; background: var(--bg-secondary); }
.section-header { text-align: center; max-width: 640px; margin: 0 auto 60px; }
.section-header h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 16px; }
.section-header p { font-size: 1.05rem; color: var(--text-secondary); }

.problem-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.problem-card {
  background: var(--white); border-radius: var(--radius); padding: 32px;
  border: 1px solid var(--border); text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.problem-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.problem-icon {
  width: 64px; height: 64px; border-radius: 16px; margin: 0 auto 20px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
}
.problem-icon-red { background: #FEE2E2; color: var(--error); }
.problem-icon-yellow { background: #FEF3C7; color: var(--warning); }
.problem-icon-blue { background: var(--primary-light); color: var(--primary); }
.problem-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 12px; }
.problem-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

/* ============================================
   FEATURES
   ============================================ */
.features-section { padding: 100px 0; }
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.feature-card {
  background: var(--white); border-radius: var(--radius); padding: 36px;
  border: 1px solid var(--border); transition: all var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary-light); }
.feature-icon {
  width: 56px; height: 56px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 20px;
}
.feature-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

/* ============================================
   OFFLINE FIRST
   ============================================ */
.offline-section { padding: 100px 0; background: var(--bg-secondary); }
.offline-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.offline-content h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 20px; }
.offline-content p { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 32px; line-height: 1.7; }
.offline-features { display: flex; flex-direction: column; gap: 16px; }
.offline-feature {
  display: flex; align-items: center; gap: 14px; font-size: 0.95rem; font-weight: 500;
}
.offline-feature svg { width: 24px; height: 24px; color: var(--success); flex-shrink: 0; }

/* Sync diagram */
.sync-diagram {
  background: var(--white); border-radius: var(--radius-lg); padding: 40px;
  border: 1px solid var(--border); box-shadow: var(--shadow);
}
.sync-diagram h3 { text-align: center; font-size: 1rem; color: var(--text-muted); margin-bottom: 32px; }
.sync-steps { display: flex; align-items: center; justify-content: center; gap: 8px; flex-wrap: wrap; }
.sync-step {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 12px; min-width: 100px;
}
.sync-step-icon {
  width: 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; color: var(--white);
}
.sync-step-label { font-size: 0.75rem; font-weight: 600; text-align: center; }
.sync-step-sub { font-size: 0.65rem; color: var(--text-muted); text-align: center; }
.sync-arrow { font-size: 1.2rem; color: var(--text-muted); }

/* ============================================
   CALCULATORS
   ============================================ */
.calculators-section { padding: 100px 0; }
.calc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.calc-card {
  background: var(--white); border-radius: var(--radius); padding: 28px;
  border: 1px solid var(--border); text-align: center;
  transition: all var(--transition);
}
.calc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary); }
.calc-icon {
  width: 52px; height: 52px; border-radius: 14px; margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
}
.calc-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.calc-card p { font-size: 0.8rem; color: var(--text-muted); }

/* ============================================
   PLANS
   ============================================ */
.plans-section { padding: 100px 0; background: var(--bg-secondary); }
.plans-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.plan-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 40px 32px;
  border: 2px solid var(--border); text-align: center;
  transition: all var(--transition); position: relative;
}
.plan-card.popular { border-color: var(--primary); }
.plan-card.popular::before {
  content: 'Mais Popular'; position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: var(--white); padding: 4px 16px;
  border-radius: 999px; font-size: 0.75rem; font-weight: 700;
}
.plan-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.plan-name { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.plan-price { font-size: 2.5rem; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
.plan-price span { font-size: 1rem; font-weight: 500; color: var(--text-muted); }
.plan-desc { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 28px; }
.plan-features { text-align: left; margin-bottom: 32px; }
.plan-features li {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 0; font-size: 0.9rem; color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
.plan-features li:last-child { border-bottom: none; }
.plan-features li svg { width: 18px; height: 18px; color: var(--success); flex-shrink: 0; }
.plan-features li.disabled { color: var(--text-muted); }
.plan-features li.disabled svg { color: var(--border); }
.plan-card .btn { width: 100%; }

/* ============================================
   COMMUNITY
   ============================================ */
.community-section { padding: 100px 0; }
.community-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.community-content h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 20px; }
.community-content p { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 32px; line-height: 1.7; }
.community-stats { display: flex; gap: 32px; margin-bottom: 32px; }
.community-stat strong { display: block; font-size: 1.5rem; font-weight: 800; color: var(--primary); }
.community-stat span { font-size: 0.8rem; color: var(--text-muted); }

/* Post card mockup */
.community-posts { display: flex; flex-direction: column; gap: 16px; }
.post-card {
  background: var(--white); border-radius: var(--radius); padding: 20px;
  border: 1px solid var(--border); box-shadow: var(--shadow);
}
.post-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.post-avatar {
  width: 40px; height: 40px; border-radius: 20px;
  background: var(--primary-light); display: flex; align-items: center;
  justify-content: center; font-weight: 700; font-size: 0.85rem; color: var(--primary);
}
.post-name { font-size: 0.9rem; font-weight: 600; }
.post-role { font-size: 0.75rem; color: var(--text-muted); }
.post-text { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 12px; line-height: 1.6; }
.post-actions { display: flex; gap: 20px; }
.post-action {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.8rem; color: var(--text-muted); cursor: pointer;
}
.post-action svg { width: 16px; height: 16px; }

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials-section { padding: 100px 0; background: var(--bg-secondary); }
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card {
  background: var(--white); border-radius: var(--radius); padding: 32px;
  border: 1px solid var(--border);
}
.testimonial-stars { display: flex; gap: 4px; margin-bottom: 16px; color: var(--warning); }
.testimonial-text { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 24px; line-height: 1.7; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
  width: 48px; height: 48px; border-radius: 24px;
  background: var(--primary-light); display: flex; align-items: center;
  justify-content: center; font-weight: 700; color: var(--primary);
}
.testimonial-name { font-size: 0.95rem; font-weight: 600; }
.testimonial-role { font-size: 0.8rem; color: var(--text-muted); }

/* ============================================
   CTA FINAL
   ============================================ */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #1E40AF 0%, var(--primary) 50%, #60A5FA 100%);
  color: var(--white); text-align: center;
}
.cta-section h2 { font-size: 2.5rem; font-weight: 800; margin-bottom: 16px; }
.cta-section p { font-size: 1.15rem; opacity: 0.9; margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 40px; }
.btn-white { background: var(--white); color: var(--primary); }
.btn-white:hover { background: var(--bg-secondary); transform: translateY(-1px); }
.btn-cta-outline {
  background: transparent; color: var(--white);
  border: 2px solid rgba(255,255,255,0.7);
}
.btn-cta-outline:hover {
  background: rgba(255,255,255,0.15); border-color: var(--white);
  transform: translateY(-1px);
}
.cta-badges { display: flex; gap: 24px; justify-content: center; }
.cta-badge {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 8px;
  background: rgba(255,255,255,0.15); font-size: 0.85rem; font-weight: 500;
}

/* ============================================
   FOOTER
   ============================================ */
.footer { padding: 60px 0 30px; border-top: 1px solid var(--border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { font-size: 0.9rem; color: var(--text-secondary); margin-top: 12px; line-height: 1.6; }
.footer-col h4 { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 16px; color: var(--text-muted); }
.footer-col a { display: block; font-size: 0.9rem; color: var(--text-secondary); padding: 4px 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 24px; border-top: 1px solid var(--border); font-size: 0.8rem; color: var(--text-muted); }
.footer-social { display: flex; gap: 16px; }
.footer-social a { color: var(--text-muted); transition: color var(--transition); }
.footer-social a:hover { color: var(--primary); }
.footer-social svg { width: 20px; height: 20px; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-content { max-width: 100%; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { margin-top: 40px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .offline-grid { grid-template-columns: 1fr; }
  .calc-grid { grid-template-columns: repeat(2, 1fr); }
  .plans-grid { grid-template-columns: repeat(2, 1fr); }
  .community-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .launch-title { font-size: 1.5rem; }
  .countdown-item { padding: 12px 14px; min-width: 65px; }
  .countdown-number { font-size: 1.6rem; }
  .notify-input-group { flex-direction: column; padding: 12px; }
  .notify-input-group input { padding: 12px; text-align: center; }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }
  .problem-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .calc-grid { grid-template-columns: 1fr; }
  .plans-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .section-header h2 { font-size: 1.8rem; }
  .cta-section h2 { font-size: 1.8rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
  .phone-frame { width: 260px; height: 520px; }
}

@media (max-width: 480px) {
  .hero { padding: 120px 0 60px; }
  .hero h1 { font-size: 1.8rem; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .hero-stat { text-align: center; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .cta-buttons { flex-direction: column; }
  .cta-buttons .btn { width: 100%; }
}

/* ============================================
   ANIMATIONS (scroll reveal)
   ============================================ */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }