/* ========================================
   BluSi Landing Page - Main Styles
   ======================================== */

/* ---------- Custom Properties ---------- */
:root {
  --primary: #1CA1FE;
  --primary-dark: #0082E0;
  --primary-light: #4DA3FF;
  --secondary: #E3F2FD;
  --gradient-start: #64B5F6;
  --gradient-end: #2196F3;

  --background: #FAFAFA;
  --card: #FFFFFF;
  --text: #1a1a2e;
  --text-secondary: #616161;
  --text-muted: #9E9E9E;

  --success: #4CAF50;
  --error: #F44336;
  --warning: #FF9800;

  --border: #EEEEEE;
  --divider: #E0E0E0;

  --white: #FFFFFF;
  --black: #000000;

  --font-family: 'Source Sans 3', 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.04);
  --shadow-card-hover: 0 12px 32px rgba(28, 161, 254, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --nav-height: 72px;
  --container-max: 1200px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

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

ul { list-style: none; }

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--primary);
  color: white;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  z-index: 10000;
  font-weight: 600;
}
.skip-link:focus {
  top: 8px;
}

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

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

/* ---------- Section Utilities ---------- */
section {
  padding: 100px 0;
}

.section-badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--secondary);
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.section-badge--light {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
}

.section-title {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--text);
}

.section-title--light {
  color: var(--white);
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.6;
}

.section-subtitle--light {
  color: rgba(255, 255, 255, 0.7);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  border: 2px solid transparent;
}

.btn--sm { padding: 8px 20px; font-size: 14px; }
.btn--md { padding: 12px 28px; font-size: 16px; }
.btn--lg { padding: 14px 32px; font-size: 17px; }

.btn--primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(28, 161, 254, 0.3);
}
.btn--primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(28, 161, 254, 0.4);
}

.btn--white {
  background: var(--white);
  color: var(--primary-dark);
  border-color: var(--white);
}
.btn--white:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
}

.btn--outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn--outline:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.3);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.5);
}

/* ==========================================
   NAVIGATION
   ========================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--transition-base);
}

.nav--scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 16px rgba(0, 0, 0, 0.06);
}

.nav__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo-img {
  height: 40px;
  width: auto;
}

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

.nav__link {
  font-size: 15px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.nav--scrolled .nav__link {
  color: var(--text-secondary);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition-base);
  border-radius: 1px;
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__link:hover,
.nav__link.active {
  color: var(--white);
}

.nav--scrolled .nav__link:hover,
.nav--scrolled .nav__link.active {
  color: var(--primary);
}

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

.nav__actions .btn--primary {
  background: var(--white);
  color: var(--primary-dark);
  border-color: var(--white);
  box-shadow: none;
  font-size: 14px;
  padding: 8px 20px;
}

.nav--scrolled .nav__actions .btn--primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(28, 161, 254, 0.3);
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 1001;
}

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

.nav--scrolled .nav__hamburger span {
  background: var(--text);
}

.nav__hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav__hamburger.active span:nth-child(2) {
  opacity: 0;
}
.nav__hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(26, 26, 46, 0.98);
  backdrop-filter: blur(16px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.mobile-menu__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.mobile-menu__link {
  font-size: 22px;
  font-weight: 600;
  color: var(--white);
  transition: color var(--transition-fast);
}

.mobile-menu__link:hover {
  color: var(--primary-light);
}

.mobile-menu__cta {
  margin-top: 16px;
}

/* ==========================================
   HERO
   ========================================== */
.hero {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #1a8fe0 0%, #1CA1FE 30%, #64B5F6 70%, #2196F3 100%);
}

.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero__shape {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.hero__shape--1 {
  width: 500px;
  height: 500px;
  top: -150px;
  right: -100px;
}

.hero__shape--2 {
  width: 300px;
  height: 300px;
  bottom: -50px;
  left: -80px;
}

.hero__shape--3 {
  width: 200px;
  height: 200px;
  top: 40%;
  left: 15%;
}

.hero__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  color: var(--white);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero__title {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero__title--highlight {
  position: relative;
  display: inline-block;
}

.hero__title--highlight::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  height: 8px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 4px;
}

.hero__subtitle {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 520px;
}

.hero__ctas {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

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

.hero__stat {
  text-align: center;
}

.hero__stat-value {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}

.hero__stat-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--white);
}

.hero__stat-suffix {
  font-size: 18px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
}

.hero__stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 4px;
  display: block;
}

.hero__stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
}

/* Hero Visual / Phone Mockup */
.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Phone Mockup */
.phone-mockup {
  position: relative;
  z-index: 2;
}

.phone-mockup__frame {
  width: 270px;
  height: 540px;
  background: #1a1a2e;
  border-radius: 36px;
  padding: 10px;
  position: relative;
  box-shadow:
    0 0 0 2px rgba(255, 255, 255, 0.08),
    0 25px 60px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(255, 255, 255, 0.03) inset;
}

.phone-mockup--large .phone-mockup__frame {
  width: 300px;
  height: 600px;
}

.phone-mockup__notch {
  width: 110px;
  height: 28px;
  background: #1a1a2e;
  border-radius: 0 0 16px 16px;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
}

.phone-mockup__screen {
  width: 100%;
  height: 100%;
  background: var(--background);
  border-radius: 26px;
  overflow: hidden;
  position: relative;
}

/* Phone UI */
.phone-ui {
  padding: 40px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 100%;
}

.phone-ui__header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  margin-bottom: 8px;
}

.phone-ui__dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
}

.phone-ui__card {
  background: var(--white);
  border-radius: 12px;
  padding: 14px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.phone-ui__card-title {
  font-weight: 600;
  font-size: 13px;
  color: var(--text);
}

.phone-ui__card-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.phone-ui__card--success {
  border-left: 3px solid var(--success);
}

.phone-ui__card--notification {
  border-left: 3px solid var(--primary);
  flex-wrap: wrap;
}

.phone-ui__actions {
  display: flex;
  gap: 8px;
  width: 100%;
  margin-top: 8px;
}

.phone-ui__btn {
  flex: 1;
  padding: 6px;
  border-radius: 8px;
  text-align: center;
  font-size: 11px;
  font-weight: 600;
}

.phone-ui__btn--accept {
  background: var(--success);
  color: white;
}

.phone-ui__btn--deny {
  background: #f5f5f5;
  color: var(--text-secondary);
}

.phone-ui__card--map {
  flex: 1;
  min-height: 120px;
  padding: 0;
  overflow: hidden;
  position: relative;
}

.phone-ui__map {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, #E8F4FD 0%, #D4ECFB 50%, #C8E4F8 100%);
  position: relative;
  min-height: 120px;
}

.phone-ui__map-pin {
  position: absolute;
  width: 20px;
  height: 20px;
}

.phone-ui__map-pin--1 { top: 25%; left: 30%; }
.phone-ui__map-pin--2 { top: 45%; left: 60%; }
.phone-ui__map-pin--3 { top: 65%; left: 40%; }

.phone-ui__map-pin::before {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--primary);
  border-radius: 50%;
  border: 2px solid white;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Showcase phone UI */
.phone-ui--showcase {
  padding: 0;
  gap: 0;
}

.phone-ui__status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
}

.phone-ui__status-icons {
  display: flex;
  gap: 4px;
  align-items: center;
}

.phone-ui__signal,
.phone-ui__wifi,
.phone-ui__battery {
  height: 10px;
  background: var(--text);
  border-radius: 2px;
}

.phone-ui__signal { width: 16px; }
.phone-ui__wifi { width: 12px; }
.phone-ui__battery { width: 20px; border-radius: 3px; }

.phone-ui__search {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 8px 12px;
  padding: 10px 14px;
  background: var(--white);
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  font-size: 13px;
  color: var(--text-muted);
}

.phone-ui__map-area {
  flex: 1;
  background: linear-gradient(180deg, #E3F0FA 0%, #D0E8F7 40%, #C4DFF3 100%);
  position: relative;
  margin: 0 12px;
  border-radius: 12px;
  min-height: 280px;
  overflow: hidden;
}

.phone-ui__map-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.3) 1px, transparent 1px);
  background-size: 40px 40px;
}

.phone-ui__pin {
  position: absolute;
}

.phone-ui__pin--1 { top: 30%; left: 25%; }
.phone-ui__pin--2 { top: 50%; left: 55%; }
.phone-ui__pin--3 { top: 70%; left: 35%; }

.phone-ui__pin-dot {
  width: 16px;
  height: 16px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid white;
  box-shadow: 0 2px 6px rgba(28, 161, 254, 0.4);
}

.phone-ui__pin-dot--active {
  width: 20px;
  height: 20px;
  background: var(--primary-dark);
  box-shadow: 0 2px 8px rgba(28, 161, 254, 0.5), 0 0 0 6px rgba(28, 161, 254, 0.15);
}

.phone-ui__bottom-sheet {
  background: var(--white);
  border-radius: 16px 16px 0 0;
  padding: 12px 16px 24px;
  margin-top: auto;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.06);
}

.phone-ui__sheet-handle {
  width: 36px;
  height: 4px;
  background: var(--divider);
  border-radius: 2px;
  margin: 0 auto 12px;
}

.phone-ui__sheet-card {
  display: flex;
  align-items: center;
  gap: 12px;
}

.phone-ui__sheet-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  flex-shrink: 0;
}

.phone-ui__sheet-title {
  font-weight: 600;
  font-size: 13px;
  color: var(--text);
}

.phone-ui__sheet-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 1px;
}

/* Hero floating badges */
.hero__float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  z-index: 3;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.hero__float--bluetooth {
  top: 10%;
  right: -10px;
}

.hero__float--shield {
  bottom: 20%;
  left: -20px;
}

.hero__float--realtime {
  bottom: 5%;
  right: 0;
}

/* ==========================================
   TRUST BAR
   ========================================== */
.trust-bar {
  padding: 48px 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

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

.trust-bar__items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.trust-bar__item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.trust-bar__number {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.trust-bar__desc {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ==========================================
   FEATURES
   ========================================== */
.features {
  background: var(--background);
}

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

.features__header {
  text-align: center;
  margin-bottom: 64px;
}

.features__header .section-subtitle {
  margin: 0 auto;
}

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

.feature-card {
  background: var(--card);
  border: 1px solid rgba(28, 161, 254, 0.06);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(28, 161, 254, 0.15);
}

.feature-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(28, 161, 254, 0.2);
}

.feature-card__title {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

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

/* ==========================================
   HOW IT WORKS
   ========================================== */
.how-it-works {
  background: var(--white);
}

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

.how-it-works__header {
  text-align: center;
  margin-bottom: 64px;
}

.how-it-works__header .section-subtitle {
  margin: 0 auto;
}

.how-it-works__steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  max-width: 900px;
  margin: 0 auto;
}

.step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 24px;
}

.step__number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: var(--white);
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  box-shadow: 0 4px 16px rgba(28, 161, 254, 0.25);
  flex-shrink: 0;
}

.step__connector {
  width: 80px;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--primary-light) 0,
    var(--primary-light) 6px,
    transparent 6px,
    transparent 12px
  );
  margin-top: 27px;
  flex-shrink: 0;
  opacity: 0.5;
}

.step__title {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

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

/* ==========================================
   APP SHOWCASE
   ========================================== */
.app-showcase {
  background: linear-gradient(180deg, #F0F8FF 0%, var(--background) 100%);
}

.app-showcase__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.app-showcase__content .section-subtitle {
  margin-bottom: 32px;
}

.app-showcase__features {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 36px;
}

.app-showcase__features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  color: var(--text);
  font-weight: 500;
}

.app-showcase__features svg {
  flex-shrink: 0;
}

.app-showcase__stores {
  display: flex;
  gap: 12px;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--text);
  color: var(--white);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  transition: all var(--transition-base);
}

.store-badge:hover {
  background: #2d2d4e;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.app-showcase__visual {
  display: flex;
  justify-content: center;
}

/* ==========================================
   SECURITY
   ========================================== */
.security {
  background: linear-gradient(135deg, #0A1628 0%, #152238 50%, #1A2D4A 100%);
  position: relative;
  overflow: hidden;
}

.security::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(28, 161, 254, 0.05);
}

.security__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.security__header {
  text-align: center;
  margin-bottom: 64px;
}

.security__header .section-subtitle--light {
  margin: 0 auto;
}

.security__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.security-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition-base);
}

@supports (backdrop-filter: blur(8px)) {
  .security-card {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }
}

.security-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
}

.security-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(28, 161, 254, 0.3), rgba(33, 150, 243, 0.3));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.security-card__title {
  font-size: 19px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.security-card__desc {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.6;
}

/* ==========================================
   PRICING
   ========================================== */
.pricing {
  background: var(--background);
}

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

.pricing__header {
  text-align: center;
  margin-bottom: 64px;
}

.pricing__header .section-subtitle {
  margin: 0 auto;
}

.pricing__cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 750px;
  margin: 0 auto 48px;
}

.pricing-card {
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px;
  text-align: center;
  position: relative;
  transition: all var(--transition-base);
}

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

.pricing-card--featured {
  border-color: var(--primary);
  box-shadow: 0 8px 32px rgba(28, 161, 254, 0.12);
}

.pricing-card--featured:hover {
  box-shadow: 0 12px 40px rgba(28, 161, 254, 0.2);
}

.pricing-card__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 20px;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: var(--white);
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing-card__header {
  margin-bottom: 24px;
}

.pricing-card__name {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.pricing-card__desc {
  font-size: 14px;
  color: var(--text-secondary);
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  margin-bottom: 28px;
}

.pricing-card__amount {
  font-size: 52px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}

.pricing-card__currency-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.pricing-card__currency {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.pricing-card__period {
  font-size: 14px;
  color: var(--text-muted);
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
  text-align: left;
}

.pricing-card__features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--text-secondary);
}

.pricing-card__features svg {
  flex-shrink: 0;
}

.pricing-card__cta {
  width: 100%;
}

/* Pricing example */
.pricing__example {
  max-width: 600px;
  margin: 0 auto;
}

.pricing__example-card {
  background: var(--secondary);
  border-radius: var(--radius-xl);
  padding: 36px;
}

.pricing__example-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.pricing__example-scenario {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.pricing__example-rows {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing__example-row {
  display: flex;
  justify-content: space-between;
  font-size: 15px;
  color: var(--text-secondary);
}

.pricing__example-divider {
  height: 1px;
  background: rgba(28, 161, 254, 0.2);
  margin: 16px 0;
}

.pricing__example-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pricing__example-total > span:first-child {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.pricing__example-amount {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
}

.pricing__example-note {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 12px;
  text-align: center;
}

/* ==========================================
   FAQ
   ========================================== */
.faq {
  background: var(--white);
}

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

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

.faq__list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item:hover {
  border-color: var(--divider);
}

.faq-item.active {
  border-color: rgba(28, 161, 254, 0.2);
  box-shadow: 0 4px 16px rgba(28, 161, 254, 0.06);
}

.faq-item__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  gap: 16px;
}

.faq-item__question span {
  flex: 1;
}

.faq-item__chevron {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform var(--transition-base);
}

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

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item__answer p {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==========================================
   CTA SECTION
   ========================================== */
.cta-section {
  background: linear-gradient(135deg, #1a8fe0 0%, #1CA1FE 30%, #64B5F6 70%, #2196F3 100%);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  left: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
}

.cta-section__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-section__title {
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 16px;
}

.cta-section__subtitle {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.cta-section__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ==========================================
   CONTACT
   ========================================== */
.contact {
  background: var(--background);
}

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

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

.contact__header .section-subtitle {
  margin: 0 auto;
}

.contact__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  transition: all var(--transition-base);
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(28, 161, 254, 0.15);
}

.contact-card__icon {
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
}

.contact-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.contact-card a {
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 15px;
}

.contact-card a:hover {
  color: var(--primary);
}

.contact-card p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
  background: #0A1628;
  padding: 64px 0 0;
}

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

.footer__top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__logo {
  height: 36px;
  margin-bottom: 16px;
  opacity: 0.9;
}

.footer__tagline {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.6;
}

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

.footer__col h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__col a {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 10px;
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  padding: 24px 0;
  text-align: center;
}

.footer__bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
}

/* ==========================================
   RESPONSIVE
   ========================================== */

/* Tablet */
@media (max-width: 1024px) {
  .hero__container {
    gap: 40px;
  }

  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .app-showcase__container {
    gap: 48px;
  }

  .footer__top {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  section {
    padding: 72px 0;
  }

  .nav__links,
  .nav__actions {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero__container {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero__subtitle {
    margin: 0 auto 32px;
  }

  .hero__ctas {
    justify-content: center;
  }

  .hero__stats {
    justify-content: center;
  }

  .hero__visual {
    order: -1;
  }

  .phone-mockup__frame {
    width: 220px;
    height: 440px;
  }

  .phone-mockup--large .phone-mockup__frame {
    width: 240px;
    height: 480px;
  }

  .hero__float {
    display: none;
  }

  .trust-bar__items {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

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

  .how-it-works__steps {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  .step {
    padding: 0;
    max-width: 400px;
  }

  .step__connector {
    width: 2px;
    height: 40px;
    margin: 0;
    background: repeating-linear-gradient(
      180deg,
      var(--primary-light) 0,
      var(--primary-light) 6px,
      transparent 6px,
      transparent 12px
    );
  }

  .app-showcase__container {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .app-showcase__content .section-title,
  .app-showcase__content .section-subtitle {
    text-align: center;
  }

  .app-showcase__features {
    align-items: flex-start;
    max-width: 320px;
    margin: 0 auto 36px;
  }

  .app-showcase__stores {
    justify-content: center;
  }

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

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

  .contact__grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

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

  .cta-section__actions {
    flex-direction: column;
    align-items: center;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  section {
    padding: 56px 0;
  }

  .hero__stats {
    gap: 20px;
  }

  .hero__stat-number {
    font-size: 26px;
  }

  .trust-bar__items {
    grid-template-columns: 1fr;
  }

  .pricing__example-card {
    padding: 24px;
  }

  .pricing__example-row {
    flex-direction: column;
    gap: 4px;
  }
}