/* ============================================
   Design System — Mobile Landing Page
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  /* Colors — matched to app logos */
  --bg-primary: #1a1210;
  --bg-secondary: #2a1f1a;
  --bg-card: rgba(255, 255, 255, 0.06);
  --bg-card-hover: rgba(255, 255, 255, 0.1);
  --border-card: rgba(255, 255, 255, 0.1);
  --border-card-hover: rgba(255, 255, 255, 0.2);
  
  --text-primary: #f5f0eb;
  --text-secondary: #b8a99a;
  --text-muted: #8a7a6a;
  
  /* App 1: Dark Brown (electricity_gas.png) */
  --accent-brown: #5D4037;
  --accent-brown-light: #8D6E63;
  --accent-brown-glow: rgba(93, 64, 55, 0.4);
  
  /* App 2: Crimson Red (logo_app.png) */
  --accent-red: #E91E63;
  --accent-red-dark: #C2185B;
  --accent-red-glow: rgba(233, 30, 99, 0.4);
  
  --gradient-hero: linear-gradient(135deg, #1a1210 0%, #2d1b14 40%, #1a1015 100%);
  --gradient-app1: linear-gradient(135deg, #5D4037, #8D6E63);
  --gradient-app2: linear-gradient(135deg, #E91E63, #F06292);
  --gradient-cta: linear-gradient(135deg, #5D4037, #4E342E);
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  
  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 50%;
  
  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-cta-app1: 0 4px 20px rgba(93, 64, 55, 0.5);
  --shadow-cta-app2: 0 4px 20px rgba(233, 30, 99, 0.4);
  --shadow-glow-brown: 0 0 30px rgba(93, 64, 55, 0.3);
  --shadow-glow-red: 0 0 30px rgba(233, 30, 99, 0.25);
}

/* ============================================
   Reset & Base
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* ============================================
   Layout Container
   ============================================ */

.page-wrapper {
  max-width: 480px;
  margin: 0 auto;
  padding-bottom: 80px; /* space for sticky bar */
  position: relative;
  overflow-x: hidden;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  background: var(--gradient-hero);
  padding: var(--space-xl) var(--space-lg) var(--space-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Animated floating glow orbs */
.hero::before,
.hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.4;
  animation: floatOrb 6s ease-in-out infinite alternate;
}

.hero::before {
  width: 200px;
  height: 200px;
  background: rgba(141, 110, 99, 0.5);
  top: -60px;
  right: -40px;
}

.hero::after {
  width: 160px;
  height: 160px;
  background: rgba(233, 30, 99, 0.25);
  bottom: -40px;
  left: -30px;
  animation-delay: 3s;
}

@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(15px, -20px) scale(1.15); }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(93, 64, 55, 0.25);
  border: 1px solid rgba(141, 110, 99, 0.4);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-brown-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
  position: relative;
  z-index: 1;
  animation: fadeInDown 0.6s ease-out;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent-brown-light);
  border-radius: var(--radius-full);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero h1 {
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
  animation: fadeInDown 0.6s ease-out 0.1s both;
  letter-spacing: -0.02em;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, #bcaaa4 0%, #e8b4b8 40%, #fff 70%, #bcaaa4 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 320px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  animation: fadeInDown 0.6s ease-out 0.2s both;
  line-height: 1.5;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-top: var(--space-lg);
  position: relative;
  z-index: 1;
  animation: fadeInDown 0.6s ease-out 0.3s both;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 12px 0;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  flex: 1;
  position: relative;
}

.hero-stat:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 15%;
  height: 70%;
  width: 1px;
  background: rgba(255,255,255,0.1);
}

.hero-stat-value {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
}

.hero-stat-label {
  font-size: 0.6rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============================================
   App Cards Section
   ============================================ */

.apps-section {
  padding: var(--space-xl) var(--space-lg);
}

.section-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
  text-align: center;
}

.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
  cursor: pointer;
}

.app-card.animate-in {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out, box-shadow 0.3s ease;
}

.app-card.animate-in:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 30px rgba(0,0,0,0.1);
  border-color: rgba(66, 133, 244, 0.3);
}

.app-card.animate-in:active {
  transform: translateY(-2px);
  transition: all 0.1s;
}

.app-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.app-card--app1::before {
  background: var(--gradient-app1);
}

.app-card--app2::before {
  background: var(--gradient-app2);
}

.app-card:active {
  background: var(--bg-card-hover);
  border-color: var(--border-card-hover);
  transform: scale(0.98);
}

.app-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.app-card__icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  flex-shrink: 0;
}

.app-card--app1 .app-card__icon {
  box-shadow: var(--shadow-glow-brown);
}

.app-card--app2 .app-card__icon {
  box-shadow: var(--shadow-glow-red);
}

.app-card__info {
  flex: 1;
  min-width: 0;
}

.app-card__name {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 2px;
}

.app-card__developer {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.app-card__rating {
  display: flex;
  align-items: center;
  gap: 4px;
}

.stars {
  display: flex;
  gap: 1px;
}

.star {
  color: #eab308;
  font-size: 0.75rem;
}

.rating-text {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: 2px;
}

.app-card__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.5;
}

.app-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.7rem;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
}

.tag-icon {
  font-size: 0.8rem;
}

.cta-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  width: 100%;
  padding: 14px var(--space-lg);
  border: none;
  border-radius: var(--radius-md);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

/* Loader State */
.cta-button.loading,
.sticky-btn.loading {
  pointer-events: none;
  position: relative;
}

.cta-button.loading .cta-button__play-logo,
.cta-button.loading .cta-button__text,
.sticky-btn.loading > *:not(.btn-spinner) {
  opacity: 0;
  transition: opacity 0.15s;
}

.sticky-btn.loading {
  font-size: 0;
  color: transparent;
}

.btn-spinner {
  display: none;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 22px;
  height: 22px;
  margin-top: -11px;
  margin-left: -11px;
  border: 3px solid rgba(255, 255, 255, 0.25);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: cta-spin 0.7s linear infinite;
}

.loading .btn-spinner {
  display: block;
}

@keyframes cta-spin {
  to { transform: rotate(360deg); }
}

.cta-button--playstore {
  background: #000000;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  gap: 12px;
  padding: 12px 20px;
  justify-content: center;
}

.cta-button__play-logo {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.cta-button__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
}

.cta-button__small {
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  opacity: 0.9;
}

.cta-button__big {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.cta-button:active {
  transform: scale(0.97);
}

.cta-button::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

.cta-button__icon {
  width: 20px;
  height: 20px;
}

/* ============================================
   Features Section
   ============================================ */

.features-section {
  padding: var(--space-lg) var(--space-lg) var(--space-xl);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.feature-item {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  opacity: 0;
  transform: translateY(15px);
}

.feature-item.animate-in {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: var(--space-sm);
  display: block;
}

.feature-title {
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.feature-desc {
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ============================================
   Trust Section
   ============================================ */

.trust-section {
  padding: var(--space-lg);
  text-align: center;
}

.trust-bar {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
}

.trust-item {
  text-align: center;
}

.trust-value {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient-app1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.trust-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}

/* ============================================
   Feature Showcase
   ============================================ */

.showcase-section {
  padding: var(--space-xl) var(--space-md);
}

.showcase-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: center;
  text-align: center;
}

.showcase-text {
  flex: 1;
}

.showcase-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0 0 var(--space-sm) 0;
  line-height: 1.3;
}

.showcase-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0 0 var(--space-md) 0;
}

.showcase-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.showcase-tag {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-card);
  padding: 4px 10px;
  border-radius: 20px;
}

.showcase-image img {
  width: 100%;
  max-width: 220px;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  border: 2px solid rgba(255,255,255,0.08);
}

.showcase-card--reverse {
  flex-direction: column;
}

/* ============================================
   Reviews Section
   ============================================ */

.reviews-section {
  padding: var(--space-xl) var(--space-md);
}

.reviews-scroll {
  display: flex;
  gap: var(--space-md);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--space-sm);
  scrollbar-width: none;
}

.reviews-scroll::-webkit-scrollbar {
  display: none;
}

.review-card {
  min-width: 280px;
  max-width: 280px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  scroll-snap-align: start;
  flex-shrink: 0;
}

.review-stars {
  color: #fbbf24;
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: var(--space-sm);
}

.review-text {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0 0 var(--space-md) 0;
  font-style: italic;
}

.review-author {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.review-name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
}

.review-source {
  font-size: 0.65rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.05);
  padding: 3px 8px;
  border-radius: 20px;
  border: 1px solid var(--border-card);
}

.animate-fade {
  opacity: 0;
  transform: translateY(15px);
  animation: fadeUp 0.5s ease forwards;
}

.animate-fade:nth-child(2) { animation-delay: 0.1s; }
.animate-fade:nth-child(3) { animation-delay: 0.2s; }
.animate-fade:nth-child(4) { animation-delay: 0.3s; }
.animate-fade:nth-child(5) { animation-delay: 0.4s; }

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   Sticky Bottom Bar
   ============================================ */

.sticky-bar {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-card);
  padding: var(--space-sm) var(--space-md);
  z-index: 100;
  display: flex;
  gap: var(--space-sm);
  animation: slideUp 0.4s ease-out 0.5s both;
}

@keyframes slideUp {
  from { transform: translateX(-50%) translateY(100%); }
  to { transform: translateX(-50%) translateY(0); }
}

.sticky-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px var(--space-sm);
  border: none;
  border-radius: var(--radius-md);
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.sticky-btn--playstore {
  background: #000000;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.sticky-btn__play-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sticky-btn:active {
  transform: scale(0.95);
}

.sticky-btn__icon {
  font-size: 1rem;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  border-top: 1px solid var(--border-card);
}

.footer-logo {
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.footer-text {
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Prevent horizontal scroll on mobile */
html, body {
  max-width: 100vw;
  overflow-x: hidden;
}

/* Selection color */
::selection {
  background: rgba(93, 64, 55, 0.4);
  color: var(--text-primary);
}