/* CSS Variables for theming - Inspired by DashboardView.swift */
:root {
  /* Colors inspired by DashboardView */
  --bg-gradient-start: #0a0f1a;
  --bg-gradient-end: #1a1f2e;
  --card-bg: rgba(255, 255, 255, 0.1);
  --card-bg-hover: rgba(255, 255, 255, 0.15);
  --card-border: rgba(255, 255, 255, 0.2);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --accent-color: #4CAF50;

  /* Spacing (from DashboardView spacing: 12) */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 48px;

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  /* Blur effects */
  --blur-sm: 8px;
  --blur-md: 20px;
  --blur-lg: 40px;

  /* Animations */
  --transition-fast: 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0.0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background:
    radial-gradient(circle at 20% 50%, rgba(76, 175, 80, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 107, 157, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(77, 163, 255, 0.08) 0%, transparent 50%),
    linear-gradient(135deg, var(--bg-gradient-start) 0%, #0f1419 25%, #1a1f2e 50%, #0f1726 75%, var(--bg-gradient-end) 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Language Switcher */
.language-switcher {
  position: fixed;
  top: var(--spacing-md);
  right: var(--spacing-md);
  z-index: 1000;
}

.language-switcher select {
  background: var(--card-bg);
  backdrop-filter: blur(var(--blur-sm));
  -webkit-backdrop-filter: blur(var(--blur-sm));
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 8px 12px;
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-fast);
  outline: none;
}

.language-switcher select:hover {
  background: var(--card-bg-hover);
}

.language-switcher select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

/* Hero Section */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-xl) 0;
  position: relative;
}

.hero .container {
  position: relative;
  z-index: 2;
}

/* Transaction badges floating animation */
.transaction-badges {
  position: absolute;
  top: 25%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 2000px;
  height: 800px;
  pointer-events: none;
  z-index: 1;
}

.transaction-badge {
  position: absolute;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  --max-opacity: 0.6; /* Default value, can be overridden by JS */
}

.transaction-badge .emoji {
  font-size: 16px;
}

.transaction-badge .amount {
  color: var(--accent-color);
}

.transaction-badge.expense .amount {
  color: #ff6b9d;
}

.transaction-badge.income .amount {
  color: #4CAF50;
}

@keyframes floatUp1 {
  0% {
    opacity: 0;
    transform: translate(0, 0) scale(0.8);
  }
  10% {
    opacity: var(--max-opacity);
    transform: translate(0, -20px) scale(1);
  }
  90% {
    opacity: var(--max-opacity);
    transform: translate(0, -80px) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(0, -100px) scale(0.8);
  }
}

@keyframes floatUp2 {
  0% {
    opacity: 0;
    transform: translate(0, 0) scale(0.8) rotate(0deg);
  }
  10% {
    opacity: var(--max-opacity);
    transform: translate(10px, -20px) scale(1) rotate(2deg);
  }
  90% {
    opacity: var(--max-opacity);
    transform: translate(20px, -80px) scale(1) rotate(2deg);
  }
  100% {
    opacity: 0;
    transform: translate(30px, -100px) scale(0.8) rotate(0deg);
  }
}

@keyframes floatUp3 {
  0% {
    opacity: 0;
    transform: translate(0, 0) scale(0.8) rotate(0deg);
  }
  10% {
    opacity: var(--max-opacity);
    transform: translate(-10px, -20px) scale(1) rotate(-2deg);
  }
  90% {
    opacity: var(--max-opacity);
    transform: translate(-20px, -80px) scale(1) rotate(-2deg);
  }
  100% {
    opacity: 0;
    transform: translate(-30px, -100px) scale(0.8) rotate(0deg);
  }
}

.app-icon {
  width: 120px;
  height: 120px;
  border-radius: 26px; /* iOS icon radius */
  margin-bottom: var(--spacing-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 0.6s ease-out;
  position: relative;
  z-index: 3;
}

.hero h1 {
  font-size: clamp(4rem, 12vw, 7rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.6s ease-out 0.1s backwards;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #ffffff 0%, #4da3ff 20%, #9d6bff 40%, #ff6b9d 60%, #4da3ff 80%, #ffffff 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 4px 20px rgba(255, 255, 255, 0.3));
  position: relative;
  animation: fadeInUp 0.6s ease-out 0.1s backwards, gradientFlow 8s ease infinite;
}

.hero .subtitle {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  margin-bottom: var(--spacing-lg);
  font-weight: 600;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, #ffffff 0%, #4CAF50 30%, #4da3ff 60%, #9d6bff 90%, #ffffff 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 2px 10px rgba(255, 255, 255, 0.2));
  animation: fadeInUp 0.6s ease-out 0.2s backwards, gradientFlow 10s ease infinite;
}

.hero .description {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
  animation: fadeInUp 0.6s ease-out 0.3s backwards;
  line-height: 1.6;
  font-weight: 400;
}

.app-store-badge {
  display: inline-block;
  animation: fadeInUp 0.6s ease-out 0.4s backwards;
  transition: all var(--transition-normal);
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
  margin-bottom: var(--spacing-xl);
}

.app-store-badge:hover {
  transform: translateY(-4px) scale(1.05);
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.4));
}

.app-store-badge:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 4px;
}

.app-store-badge img {
  height: 70px;
  width: auto;
  display: block;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  animation: fadeInUp 0.6s ease-out 0.6s backwards;
  cursor: pointer;
  z-index: 2;
}

.scroll-indicator-icon {
  width: 24px;
  height: 36px;
  border: 2px solid var(--text-secondary);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator-dot {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--text-secondary);
  border-radius: 2px;
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% {
    transform: translate(-50%, 0);
    opacity: 1;
  }
  50% {
    transform: translate(-50%, 12px);
    opacity: 0.3;
  }
}

/* Features Section */
.features {
  padding: var(--spacing-xl) 0;
}

.features h2,
.reviews h2 {
  text-align: center;
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: var(--spacing-xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #ffffff 0%, #c0c0c0 40%, #ffffff 60%, #b0b0b0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 40px rgba(255, 255, 255, 0.1);
  filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.3));
}

/* Features Grid - Semi-transparent cards like DashboardView */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  justify-items: center;
}

/* Limit to 3 columns maximum for better layout with 7 items */
@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background: rgba(255, 255, 255, 0.01);
  border: none;
  border-radius: 16px;
  padding: var(--spacing-md) var(--spacing-lg);
  transition: all var(--transition-normal);
  opacity: 0;
  transform: translateY(30px);
  width: 100%;
  max-width: 380px;
}

.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.feature-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  cursor: pointer;
}

.feature-card .icon {
  width: 40px;
  height: 40px;
  color: var(--accent-color);
  margin-bottom: var(--spacing-sm);
  stroke-width: 1.5;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.5;
  font-size: 0.9375rem;
}

/* Reviews Section */
.reviews {
  padding: var(--spacing-xl) 0;
  overflow: hidden;
}

.reviews-container {
  position: relative;
  margin: var(--spacing-xl) auto 0;
  overflow: hidden;
  /* CSS mask to fade out edges smoothly on desktop */
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%);
}

/* Custom scrollbar styling for webkit browsers */
.reviews-container::-webkit-scrollbar {
  height: 6px;
}

.reviews-container::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
}

.reviews-container::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}

.reviews-container::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

.reviews-row {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md) 0;
  animation: scroll-left-to-right 60s linear infinite;
  width: fit-content;
  will-change: transform;
}

.reviews-row-reverse {
  animation: scroll-right-to-left 60s linear infinite;
}

/* Pause animation on hover */
.reviews-row:hover {
  animation-play-state: paused;
}

.review-card {
  background: var(--card-bg);
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
  min-width: 300px;
  max-width: 380px;
  flex-shrink: 0;
}

.review-card:hover {
  background: var(--card-bg-hover);
  transform: scale(1.02);
  border-color: var(--review-border-color, #ff6b9d);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Colored borders for reviews - cycling through colors */
.review-card:nth-child(4n+1) {
  --review-border-color: #ff6b9d;
}

.review-card:nth-child(4n+2) {
  --review-border-color: #4da3ff;
}

.review-card:nth-child(4n+3) {
  --review-border-color: #9d6bff;
}

.review-card:nth-child(4n+4) {
  --review-border-color: #ffa94d;
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.review-author {
  font-weight: 600;
  font-size: 0.9rem;
}

.review-date {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.review-rating {
  color: #ffd700;
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
  letter-spacing: 2px;
}

.review-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.review-text {
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 0.9375rem;
}

/* Footer */
.footer {
  text-align: center;
  padding: var(--spacing-xl) 0;
  border-top: 1px solid var(--card-border);
  margin-top: var(--spacing-xl);
}

.footer a {
  color: var(--accent-color);
  text-decoration: none;
  margin-right: var(--spacing-md);
  transition: opacity var(--transition-fast);
  font-weight: 500;
}

.footer a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

.footer a:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

.footer p {
  color: var(--text-secondary);
  margin-top: var(--spacing-sm);
  font-size: 0.875rem;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes scroll-left-to-right {
  0% {
    transform: translateX(-50%);
  }
  100% {
    transform: translateX(0);
  }
}

@keyframes scroll-right-to-left {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 85vh;
    padding: var(--spacing-lg) 0;
  }

  .app-store-badge {
    margin-bottom: var(--spacing-lg);
  }

  .scroll-indicator {
    bottom: var(--spacing-sm);
    font-size: 0.75rem;
  }

  .language-switcher {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
  }

  .language-switcher select {
    font-size: 12px;
    padding: 6px 10px;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .features,
  .reviews {
    padding: var(--spacing-lg) 0;
  }

  .feature-card h3,
  .review-title {
    font-size: 1.25rem;
  }

  .review-card {
    min-width: 260px;
    max-width: 320px;
    padding: var(--spacing-md);
  }

  .reviews-container {
    /* On mobile, make it horizontally scrollable */
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
    scroll-behavior: smooth;
    /* Remove mask on mobile to show scrollbar */
    -webkit-mask-image: none;
    mask-image: none;
    /* Add padding for better scroll experience */
    padding: 0 var(--spacing-md);
    margin-left: calc(-1 * var(--spacing-md));
    margin-right: calc(-1 * var(--spacing-md));
    position: relative;
  }

  .reviews-row {
    /* Disable animation on mobile */
    animation: none;
    /* Enable scroll snap for better UX */
    scroll-snap-type: x mandatory;
    padding: var(--spacing-md) 0;
  }

  .reviews-row-reverse {
    /* Disable animation on mobile */
    animation: none;
  }

  .review-card {
    /* Add scroll snap alignment */
    scroll-snap-align: start;
  }

  /* Hide the second row on mobile to avoid confusion */
  .reviews-row-reverse {
    display: none;
  }

  .transaction-badges {
    width: 100%;
    max-width: 600px;
    height: 500px;
    top: 20%;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: var(--spacing-md) 0;
  }

  .app-icon {
    width: 100px;
    height: 100px;
    border-radius: 22px;
  }

  .app-store-badge {
    margin-bottom: var(--spacing-lg);
  }

  .app-store-badge img {
    height: 50px;
  }

  .review-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .review-card {
    min-width: 240px;
    max-width: 280px;
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .review-title {
    font-size: 1rem;
  }

  .review-text {
    font-size: 0.875rem;
  }

  /* Show a subtle hint that content is scrollable */
  .reviews-container::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 40px;
    background: linear-gradient(to left, var(--bg-gradient-end), transparent);
    pointer-events: none;
  }

  .transaction-badges {
    height: 400px;
    top: 18%;
  }
}

/* Hide scroll indicator on shorter screens to prevent overlap */
@media (max-height: 900px) {
  .scroll-indicator {
    display: none;
  }

  .hero {
    padding-bottom: var(--spacing-lg);
  }

  .app-store-badge {
    margin-bottom: var(--spacing-lg);
  }
}

/* Accessibility: Respect user's motion preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reviews-row {
    animation: none !important;
  }
}

/* Focus visible styles for better keyboard navigation */
:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  body {
    background: white;
    color: black;
  }

  .language-switcher {
    display: none;
  }

  .feature-card,
  .review-card {
    break-inside: avoid;
    page-break-inside: avoid;
  }
}