/* ========================================
   WALLET - Flash Cards App Website
   Style: UNO Game Inspired
   Author: Best Programmer 2026
   ======================================== */

/* === CSS Variables === */
:root {
  /* UNO Colors */
  --uno-red: #FF3B30;
  --uno-blue: #007AFF;
  --uno-green: #34C759;
  --uno-yellow: #FFCC00;
  --uno-orange: #FF9500;
  --uno-purple: #AF52DE;

  /* Background */
  --bg-primary: #0D0D0D;
  --bg-secondary: #1A1A2E;
  --bg-card: rgba(255, 255, 255, 0.05);

  /* Text */
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);

  /* Shadows */
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow-red: 0 0 40px rgba(255, 59, 48, 0.5);
  --shadow-glow-blue: 0 0 40px rgba(0, 122, 255, 0.5);
  --shadow-glow-green: 0 0 40px rgba(52, 199, 89, 0.5);
  --shadow-glow-yellow: 0 0 40px rgba(255, 204, 0, 0.5);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

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

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Segoe UI', 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

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

a:hover {
  color: var(--uno-yellow);
}

/* === Gradient Text === */
.gradient-text {
  background: linear-gradient(135deg, var(--uno-red), var(--uno-yellow), var(--uno-green), var(--uno-blue));
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 5s ease infinite;
}

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

/* === Container === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* === Navigation === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 2rem;
  background: rgba(13, 13, 13, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-normal);
}

.navbar.scrolled {
  padding: 0.75rem 2rem;
  background: rgba(13, 13, 13, 0.95);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-logo-icon {
  width: 45px;
  height: 45px;
  background: linear-gradient(135deg, var(--uno-red), var(--uno-yellow));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-glow-red);
  transition: var(--transition-normal);
}

.nav-logo:hover .nav-logo-icon {
  transform: rotate(10deg) scale(1.1);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.nav-link {
  padding: 0.6rem 1rem;
  color: var(--text-secondary);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: var(--glass-bg);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--uno-red), var(--uno-yellow));
  transition: var(--transition-normal);
  transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 60%;
}

.nav-cta {
  background: linear-gradient(135deg, var(--uno-red), var(--uno-orange));
  color: white !important;
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-lg);
  font-weight: 600;
  box-shadow: var(--shadow-glow-red);
  transition: var(--transition-normal);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 60px rgba(255, 59, 48, 0.6);
}

/* Mobile Menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 10px;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-normal);
}

@media (max-width: 968px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(13, 13, 13, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 2rem;
    gap: 1rem;
    transform: translateY(-150%);
    opacity: 0;
    transition: var(--transition-normal);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
  }

  .nav-link {
    width: 100%;
    text-align: center;
    padding: 1rem;
  }
}

/* === Hero Section === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 120px 2rem 4rem;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  z-index: 10;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  backdrop-filter: blur(10px);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--uno-green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.hero h1 {
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.35rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* === Floating Cards Background === */
.floating-cards {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  overflow: hidden;
}

.floating-card {
  position: absolute;
  width: 80px;
  height: 120px;
  border-radius: var(--radius-md);
  opacity: 0.15;
  animation: float 20s infinite ease-in-out;
}

.floating-card:nth-child(1) {
  background: linear-gradient(135deg, var(--uno-red), #ff6b6b);
  top: 10%;
  left: 10%;
  animation-delay: 0s;
  animation-duration: 25s;
}

.floating-card:nth-child(2) {
  background: linear-gradient(135deg, var(--uno-blue), #4da6ff);
  top: 20%;
  right: 15%;
  animation-delay: -5s;
  animation-duration: 22s;
}

.floating-card:nth-child(3) {
  background: linear-gradient(135deg, var(--uno-green), #5ce08a);
  bottom: 30%;
  left: 5%;
  animation-delay: -10s;
  animation-duration: 28s;
}

.floating-card:nth-child(4) {
  background: linear-gradient(135deg, var(--uno-yellow), #ffe066);
  bottom: 20%;
  right: 10%;
  animation-delay: -15s;
  animation-duration: 24s;
}

.floating-card:nth-child(5) {
  background: linear-gradient(135deg, var(--uno-purple), #c77dff);
  top: 50%;
  left: 20%;
  animation-delay: -8s;
  animation-duration: 26s;
}

.floating-card:nth-child(6) {
  background: linear-gradient(135deg, var(--uno-orange), #ffb347);
  top: 40%;
  right: 25%;
  animation-delay: -12s;
  animation-duration: 23s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg) scale(1);
  }
  25% {
    transform: translateY(-30px) rotate(5deg) scale(1.05);
  }
  50% {
    transform: translateY(-15px) rotate(-3deg) scale(0.95);
  }
  75% {
    transform: translateY(-40px) rotate(8deg) scale(1.02);
  }
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: var(--transition-normal);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--uno-red), var(--uno-orange));
  color: white;
  box-shadow: var(--shadow-glow-red);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 60px rgba(255, 59, 48, 0.7);
  color: white;
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--glass-border);
  transform: translateY(-3px);
  color: white;
}

.btn-large {
  padding: 1.25rem 3rem;
  font-size: 1.15rem;
}

.btn-icon {
  font-size: 1.25rem;
}

/* Button Ripple Effect */
.btn::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 60%);
  transform: scale(0);
  opacity: 0;
  transition: transform 0.5s, opacity 0.5s;
}

.btn:active::after {
  transform: scale(2);
  opacity: 1;
  transition: 0s;
}

/* === Sections === */
.section {
  padding: 6rem 2rem;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-label {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  font-size: 0.85rem;
  color: var(--uno-yellow);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-subtitle {
  max-width: 600px;
  margin: 0 auto;
  color: var(--text-secondary);
}

/* === Feature Cards === */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--uno-red), var(--uno-yellow), var(--uno-green), var(--uno-blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-card);
  border-color: transparent;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 1.5rem;
  position: relative;
}

.feature-icon.red {
  background: linear-gradient(135deg, var(--uno-red), #ff6b6b);
  box-shadow: var(--shadow-glow-red);
}

.feature-icon.blue {
  background: linear-gradient(135deg, var(--uno-blue), #4da6ff);
  box-shadow: var(--shadow-glow-blue);
}

.feature-icon.green {
  background: linear-gradient(135deg, var(--uno-green), #5ce08a);
  box-shadow: var(--shadow-glow-green);
}

.feature-icon.yellow {
  background: linear-gradient(135deg, var(--uno-yellow), #ffe066);
  box-shadow: var(--shadow-glow-yellow);
}

.feature-icon.purple {
  background: linear-gradient(135deg, var(--uno-purple), #c77dff);
  box-shadow: 0 0 40px rgba(175, 82, 222, 0.5);
}

.feature-icon.orange {
  background: linear-gradient(135deg, var(--uno-orange), #ffb347);
  box-shadow: 0 0 40px rgba(255, 149, 0, 0.5);
}

.feature-card h3 {
  margin-bottom: 0.75rem;
}

.feature-card p {
  font-size: 1rem;
  margin-bottom: 0;
}

/* === 3D Card === */
.card-3d-container {
  perspective: 1000px;
  width: 100%;
  max-width: 350px;
  margin: 0 auto;
}

.card-3d {
  position: relative;
  width: 100%;
  aspect-ratio: 3/4;
  transform-style: preserve-3d;
  transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: pointer;
}

.card-3d:hover {
  transform: rotateY(180deg);
}

.card-3d-face {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-xl);
  backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
}

.card-3d-front {
  background: linear-gradient(135deg, var(--uno-red), var(--uno-orange));
  box-shadow: var(--shadow-glow-red);
}

.card-3d-back {
  background: linear-gradient(135deg, var(--uno-blue), var(--uno-purple));
  transform: rotateY(180deg);
  box-shadow: var(--shadow-glow-blue);
}

.card-3d-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.card-3d h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.card-3d p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
}

/* === Stats Section === */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.stat-card {
  text-align: center;
  padding: 2rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

.stat-card:hover {
  transform: scale(1.05);
  border-color: var(--uno-yellow);
}

.stat-number {
  font-size: 3.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--uno-yellow), var(--uno-orange));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* === Steps/Timeline === */
.steps-container {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  position: relative;
}

.steps-container::before {
  content: '';
  position: absolute;
  left: 40px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--uno-red), var(--uno-yellow), var(--uno-green), var(--uno-blue));
  border-radius: 2px;
}

.step {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.step-number {
  width: 80px;
  height: 80px;
  min-width: 80px;
  background: var(--bg-primary);
  border: 4px solid var(--uno-yellow);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  color: var(--uno-yellow);
  z-index: 1;
  transition: var(--transition-normal);
}

.step:hover .step-number {
  background: var(--uno-yellow);
  color: var(--bg-primary);
  transform: scale(1.1);
}

.step-content {
  flex: 1;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  backdrop-filter: blur(10px);
}

.step-content h3 {
  margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
  .steps-container::before {
    left: 20px;
  }

  .step-number {
    width: 40px;
    height: 40px;
    min-width: 40px;
    font-size: 1rem;
  }
}

/* === Testimonials/Reviews === */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.review-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  backdrop-filter: blur(10px);
  position: relative;
  transition: var(--transition-normal);
}

.review-card:hover {
  transform: translateY(-5px);
  border-color: var(--uno-yellow);
}

.review-card::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 20px;
  font-size: 6rem;
  font-family: Georgia, serif;
  color: var(--uno-yellow);
  opacity: 0.3;
  line-height: 1;
}

.review-stars {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1rem;
  font-size: 1.25rem;
  color: var(--uno-yellow);
}

.review-text {
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.review-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--uno-blue), var(--uno-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
}

.review-author-info h4 {
  margin-bottom: 0;
  font-size: 1rem;
}

.review-author-info span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* === FAQ Accordion === */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

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

.faq-question {
  width: 100%;
  padding: 1.5rem 2rem;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-icon {
  width: 30px;
  height: 30px;
  min-width: 30px;
  border-radius: 50%;
  background: var(--glass-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
}

.faq-item.active .faq-icon {
  background: var(--uno-yellow);
  color: var(--bg-primary);
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-content {
  padding: 0 2rem 1.5rem;
  color: var(--text-secondary);
}

/* === Download Section === */
.download-section {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
  position: relative;
  overflow: hidden;
}

.download-card {
  background: var(--glass-bg);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 4rem;
  text-align: center;
  backdrop-filter: blur(20px);
  position: relative;
  max-width: 700px;
  margin: 0 auto;
}

.download-card::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--uno-red), var(--uno-yellow), var(--uno-green), var(--uno-blue));
  z-index: -1;
  opacity: 0.5;
}

.download-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 2rem;
  background: linear-gradient(135deg, var(--uno-red), var(--uno-orange));
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  box-shadow: var(--shadow-glow-red);
  animation: downloadPulse 2s infinite;
}

@keyframes downloadPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.download-info {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.download-info-item {
  text-align: center;
}

.download-info-item span {
  display: block;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
}

.download-info-item strong {
  color: var(--text-primary);
  font-size: 1.1rem;
}

/* === Contact Form === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

@media (max-width: 968px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-icon {
  width: 50px;
  height: 50px;
  min-width: 50px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.contact-form {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--bg-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--uno-blue);
  box-shadow: 0 0 20px rgba(0, 122, 255, 0.3);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

/* === Footer === */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--glass-border);
  padding: 4rem 2rem 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (max-width: 968px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--uno-red), var(--uno-yellow));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.footer-column h4 {
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  font-size: 1.1rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--uno-yellow);
  padding-left: 5px;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0;
}

.footer-socials {
  display: flex;
  gap: 1rem;
}

.footer-social {
  width: 40px;
  height: 40px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-normal);
}

.footer-social:hover {
  background: var(--uno-yellow);
  color: var(--bg-primary);
  transform: translateY(-3px);
}

/* === Utility Classes === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.py-1 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2 { padding-top: 1rem; padding-bottom: 1rem; }
.py-3 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-4 { padding-top: 2rem; padding-bottom: 2rem; }
.py-5 { padding-top: 3rem; padding-bottom: 3rem; }

.hidden { display: none; }
.visible { display: block; }

/* === Animations === */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger animation delays */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* === Confetti Animation === */
.confetti {
  position: fixed;
  width: 10px;
  height: 10px;
  pointer-events: none;
  z-index: 9999;
  animation: confettiFall 3s linear forwards;
}

@keyframes confettiFall {
  0% {
    transform: translateY(-100vh) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) rotate(720deg);
    opacity: 0;
  }
}

/* === Page-specific styles === */
.page-header {
  padding: 140px 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center top, rgba(255, 59, 48, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb span {
  color: var(--text-muted);
}

.breadcrumb-current {
  color: var(--uno-yellow) !important;
}

/* === Comparison Table === */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--glass-bg);
  border-radius: var(--radius-xl);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.comparison-table th,
.comparison-table td {
  padding: 1.25rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--glass-border);
}

.comparison-table th {
  background: var(--bg-primary);
  font-weight: 600;
  color: var(--text-primary);
}

.comparison-table th:first-child {
  text-align: left;
}

.comparison-table td:not(:first-child),
.comparison-table th:not(:first-child) {
  text-align: center;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table .check {
  color: var(--uno-green);
  font-size: 1.5rem;
}

.comparison-table .cross {
  color: var(--uno-red);
  font-size: 1.5rem;
}

.comparison-table .highlight-col {
  background: rgba(255, 204, 0, 0.1);
}

/* === Scroll to top === */
.scroll-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--uno-red), var(--uno-orange));
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow-red);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-5px);
}

/* === Cursor Trail === */
.cursor-trail {
  position: fixed;
  width: 20px;
  height: 30px;
  pointer-events: none;
  z-index: 9998;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.3s;
}

body:hover .cursor-trail {
  opacity: 0.6;
}

/* === Loading Screen === */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.5s, visibility 0.5s;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-cards {
  display: flex;
  gap: 10px;
}

.loader-card {
  width: 30px;
  height: 45px;
  border-radius: 6px;
  animation: loaderBounce 1.4s ease-in-out infinite;
}

.loader-card:nth-child(1) {
  background: var(--uno-red);
  animation-delay: 0s;
}

.loader-card:nth-child(2) {
  background: var(--uno-yellow);
  animation-delay: 0.1s;
}

.loader-card:nth-child(3) {
  background: var(--uno-green);
  animation-delay: 0.2s;
}

.loader-card:nth-child(4) {
  background: var(--uno-blue);
  animation-delay: 0.3s;
}

@keyframes loaderBounce {
  0%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-30px);
  }
}

/* === Science Section === */
.science-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.science-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

.science-card:hover {
  transform: translateY(-5px);
  border-color: var(--uno-green);
}

.science-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, var(--uno-green), var(--uno-blue));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

/* === Privacy Policy === */
.privacy-content {
  max-width: 800px;
  margin: 0 auto;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 3rem;
  backdrop-filter: blur(10px);
}

.privacy-content h2 {
  color: var(--uno-yellow);
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.privacy-content h2:first-child {
  margin-top: 0;
}

.privacy-content ul {
  margin-left: 1.5rem;
  color: var(--text-secondary);
}

.privacy-content li {
  margin-bottom: 0.5rem;
}