/* ============================================
   SONGI - Design Fun & Moderne v1.3
   Aesthetic: Playful, Vibrant, Immersive
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Space+Mono:wght@400;700&display=swap');

/* ============================================
   CSS Variables
   ============================================ */
:root {
  /* Vibrant Color Palette */
  --primary: #ff6b6b;
  --primary-dark: #ee5a5a;
  --secondary: #4ecdc4;
  --accent: #ffe66d;
  --purple: #a855f7;
  --blue: #3b82f6;
  --pink: #ec4899;
  --orange: #f97316;
  
  /* Gradients */
  --gradient-main: linear-gradient(135deg, #ff6b6b 0%, #feca57 50%, #48dbfb 100%);
  --gradient-button: linear-gradient(135deg, #ff6b6b 0%, #ee5a5a 50%, #ff8e8e 100%);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.7) 100%);
  --gradient-dark: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  
  /* Neutrals */
  --dark: #1a1a2e;
  --text: #2d3436;
  --text-light: #636e72;
  --bg: #ffeaa7;
  --white: #ffffff;
  
  /* Effects */
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-md: 0 10px 40px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 25px 80px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 40px rgba(255, 107, 107, 0.4);
  
  /* Spacing */
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --radius-xl: 48px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--gradient-dark);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ============================================
   Animated Background
   ============================================ */
.bg-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.bg-animation::before {
  content: '';
  position: absolute;
  width: 200%;
  height: 200%;
  top: -50%;
  left: -50%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(255, 107, 107, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(78, 205, 196, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(168, 85, 247, 0.2) 0%, transparent 40%),
    radial-gradient(circle at 90% 90%, rgba(255, 230, 109, 0.25) 0%, transparent 40%);
  animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  25% { transform: translate(-5%, 5%) rotate(5deg); }
  50% { transform: translate(5%, -5%) rotate(-5deg); }
  75% { transform: translate(-3%, -3%) rotate(3deg); }
}

/* Floating Shapes */
.floating-shapes {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(1px);
  opacity: 0.6;
}

.shape-1 {
  width: 80px;
  height: 80px;
  background: var(--primary);
  top: 10%;
  left: 5%;
  animation: float1 8s ease-in-out infinite;
}

.shape-2 {
  width: 120px;
  height: 120px;
  background: var(--secondary);
  top: 60%;
  right: 10%;
  animation: float2 10s ease-in-out infinite;
}

.shape-3 {
  width: 60px;
  height: 60px;
  background: var(--accent);
  top: 30%;
  right: 20%;
  animation: float3 7s ease-in-out infinite;
}

.shape-4 {
  width: 100px;
  height: 100px;
  background: var(--purple);
  bottom: 20%;
  left: 15%;
  animation: float1 9s ease-in-out infinite reverse;
}

.shape-5 {
  width: 40px;
  height: 40px;
  background: var(--pink);
  top: 50%;
  left: 50%;
  animation: float2 6s ease-in-out infinite;
}

@keyframes float1 {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-30px) rotate(180deg); }
}

@keyframes float2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(20px, -20px) scale(1.1); }
}

@keyframes float3 {
  0%, 100% { transform: translateX(0) rotate(0deg); }
  50% { transform: translateX(30px) rotate(-180deg); }
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  position: relative;
  z-index: 1;
}

/* ============================================
   Header - Hero Style
   ============================================ */
.header {
  text-align: center;
  padding: 60px 20px 40px;
  position: relative;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  text-shadow: 0 4px 20px rgba(0,0,0,0.3);
  margin-bottom: 30px;
  animation: logoEntrance 1s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.logo-icon {
  font-size: 3rem;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes logoEntrance {
  0% { opacity: 0; transform: translateY(-30px) scale(0.8); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.header h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
  line-height: 1.1;
  animation: slideUp 0.8s ease-out 0.2s backwards;
}

.header h1 .highlight {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: 1.25rem;
  color: rgba(255,255,255,0.8);
  font-weight: 400;
  max-width: 500px;
  margin: 0 auto;
  animation: slideUp 0.8s ease-out 0.4s backwards;
}

@keyframes slideUp {
  0% { opacity: 0; transform: translateY(30px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* Trust badges */
.trust-badges {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 30px;
  flex-wrap: wrap;
  animation: slideUp 0.8s ease-out 0.6s backwards;
}

.badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  padding: 10px 18px;
  border-radius: 50px;
  font-size: 0.9rem;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.2);
  transition: all 0.3s ease;
}

.badge:hover {
  background: rgba(255,255,255,0.25);
  transform: translateY(-2px);
}

.badge-icon {
  font-size: 1.2rem;
}

/* ============================================
   Form Card - Glassmorphism
   ============================================ */
.song-form {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  padding: 0;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: formEntrance 1s ease-out 0.5s backwards;
}

@keyframes formEntrance {
  0% { opacity: 0; transform: translateY(50px) scale(0.95); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

/* ============================================
   Form Sections
   ============================================ */
.form-section {
  padding: 35px 40px;
  border-bottom: 2px dashed rgba(0,0,0,0.06);
  position: relative;
  transition: all 0.3s ease;
}

.form-section:last-of-type {
  border-bottom: none;
}

.form-section:hover {
  background: rgba(255, 107, 107, 0.02);
}

.form-section h2 {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 25px;
}

.section-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background: var(--gradient-main);
  color: var(--white);
  font-size: 1.2rem;
  font-weight: 800;
  border-radius: 50%;
  box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
  transition: all 0.3s ease;
}

.form-section:hover .section-number {
  transform: scale(1.1) rotate(10deg);
}

/* ============================================
   Form Elements
   ============================================ */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.form-group {
  margin-bottom: 22px;
}

.form-group:last-child {
  margin-bottom: 0;
}

label {
  display: block;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 10px;
  font-size: 0.95rem;
}

.required {
  color: var(--primary);
  font-weight: 700;
}

input[type="text"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 16px 20px;
  font-size: 1rem;
  font-family: inherit;
  border: 2px solid #e9ecef;
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--text);
  transition: all 0.3s ease;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(255, 107, 107, 0.15);
  transform: translateY(-2px);
}

input::placeholder,
textarea::placeholder {
  color: #adb5bd;
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23636e72' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 20px;
  padding-right: 50px;
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.help-text {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.help-text::before {
  content: '💡';
  font-size: 1rem;
}

/* Character Counter */
.char-counter {
  text-align: right;
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 8px;
  font-family: 'Space Mono', monospace;
}

.char-counter.warning {
  color: var(--orange);
  font-weight: 600;
}

.char-counter.over-limit {
  color: var(--primary);
  font-weight: 700;
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* ============================================
   Voice Selection - Fun Cards
   ============================================ */
.voice-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
}

.voice-option {
  cursor: pointer;
}

.voice-option input {
  display: none;
}

.voice-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 25px 15px;
  background: linear-gradient(145deg, #f8f9fa, #e9ecef);
  border: 3px solid transparent;
  border-radius: var(--radius-md);
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.voice-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.voice-option input:checked + .voice-card {
  background: linear-gradient(145deg, #fff5f5, #ffe3e3);
  border-color: var(--primary);
  box-shadow: 0 8px 30px rgba(255, 107, 107, 0.3);
  transform: translateY(-5px) scale(1.02);
}

.voice-icon {
  font-size: 2.5rem;
  transition: transform 0.3s ease;
}

.voice-option input:checked + .voice-card .voice-icon {
  animation: wiggle 0.5s ease-in-out;
}

@keyframes wiggle {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-10deg); }
  75% { transform: rotate(10deg); }
}

.voice-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--dark);
}

/* ============================================
   Checkbox Styling
   ============================================ */
.checkbox-group {
  margin-top: 10px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  font-weight: 400;
  padding: 15px 20px;
  background: #f8f9fa;
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.checkbox-label:hover {
  background: #e9ecef;
}

.checkbox-label input {
  display: none;
}

.checkmark {
  width: 26px;
  height: 26px;
  border: 3px solid #dee2e6;
  border-radius: 8px;
  position: relative;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.checkbox-label input:checked + .checkmark {
  background: var(--secondary);
  border-color: var(--secondary);
}

.checkbox-label input:checked + .checkmark::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 1rem;
  font-weight: 700;
}

/* ============================================
   Checkout Section - Premium Feel
   ============================================ */
.checkout-section {
  background: var(--gradient-dark);
  padding: 45px 40px;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.checkout-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,107,107,0.2) 0%, transparent 60%);
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 0.8; }
}

.price-box {
  text-align: center;
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}

.price-label {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 10px;
}

.price-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 10px;
}

.price {
  font-size: 4rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
}

.price-note {
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
}

/* Features List */
.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 35px;
  position: relative;
  z-index: 1;
}

.feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.9);
  padding: 8px 0;
}

.feature::before {
  content: '✨';
  font-size: 1.1rem;
}

/* Submit Button */
.submit-btn {
  width: 100%;
  padding: 22px 40px;
  font-size: 1.3rem;
  font-weight: 700;
  font-family: inherit;
  color: var(--white);
  background: var(--gradient-button);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  position: relative;
  z-index: 1;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 10px 40px rgba(255, 107, 107, 0.4);
}

.submit-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s ease;
}

.submit-btn:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 15px 50px rgba(255, 107, 107, 0.5);
}

.submit-btn:hover::before {
  left: 100%;
}

.submit-btn:active {
  transform: translateY(-2px) scale(1);
}

.submit-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.btn-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Secure Payment */
.secure-payment {
  text-align: center;
  margin-top: 20px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  position: relative;
  z-index: 1;
}

.legal-text {
  text-align: center;
  margin-top: 15px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  position: relative;
  z-index: 1;
}

.legal-text a {
  color: rgba(255,255,255,0.7);
  text-decoration: underline;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  text-align: center;
  padding: 40px 20px;
  color: rgba(255,255,255,0.6);
}

.footer p {
  margin-bottom: 15px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--primary);
}

/* ============================================
   Messages / Notifications
   ============================================ */
.message {
  position: fixed;
  bottom: 30px;
  right: 30px;
  padding: 18px 50px 18px 25px;
  border-radius: var(--radius-md);
  font-weight: 500;
  z-index: 1000;
  animation: slideInRight 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: var(--shadow-lg);
}

@keyframes slideInRight {
  0% { opacity: 0; transform: translateX(100px); }
  100% { opacity: 1; transform: translateX(0); }
}

.message-warning {
  background: linear-gradient(135deg, #fff3cd, #ffeeba);
  color: #856404;
  border: 2px solid #ffc107;
}

.message-error {
  background: linear-gradient(135deg, #f8d7da, #f5c6cb);
  color: #721c24;
  border: 2px solid #f5c6cb;
}

.message-success {
  background: linear-gradient(135deg, #d4edda, #c3e6cb);
  color: #155724;
  border: 2px solid #c3e6cb;
}

.message-close {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.3s ease;
}

.message-close:hover {
  opacity: 1;
}

/* Error States */
.form-group.error input,
.form-group.error select,
.form-group.error textarea {
  border-color: var(--primary);
  background: #fff5f5;
}

.error-message {
  color: var(--primary);
  font-size: 0.85rem;
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
  animation: slideUp 0.3s ease-out;
}

.error-message::before {
  content: '⚠️';
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
  .container {
    padding: 15px;
  }

  .header {
    padding: 40px 15px 30px;
  }

  .logo {
    font-size: 2rem;
  }

  .logo-icon {
    font-size: 2.5rem;
  }

  .trust-badges {
    gap: 12px;
  }

  .badge {
    padding: 8px 14px;
    font-size: 0.8rem;
  }

  .form-section {
    padding: 25px 20px;
  }

  .form-section h2 {
    font-size: 1.2rem;
  }

  .section-number {
    width: 38px;
    height: 38px;
    font-size: 1rem;
  }

  .voice-options {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .voice-card {
    padding: 18px 10px;
  }

  .voice-icon {
    font-size: 2rem;
  }

  .voice-label {
    font-size: 0.75rem;
  }

  .checkout-section {
    padding: 35px 20px;
  }

  .price {
    font-size: 3rem;
  }

  .features-list {
    grid-template-columns: 1fr;
  }

  .submit-btn {
    font-size: 1.1rem;
    padding: 18px 30px;
  }

  .message {
    left: 15px;
    right: 15px;
    bottom: 15px;
  }

  .shape {
    opacity: 0.3;
  }
}

@media (max-width: 480px) {
  .header h1 {
    font-size: 1.8rem;
  }

  .subtitle {
    font-size: 1rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Fun Extras
   ============================================ */

/* Confetti animation on hover for price */
.price:hover {
  animation: celebrate 0.5s ease-in-out;
}

@keyframes celebrate {
  0%, 100% { transform: scale(1); }
  25% { transform: scale(1.05) rotate(-2deg); }
  75% { transform: scale(1.05) rotate(2deg); }
}

/* Smooth scroll indicator */
.scroll-indicator {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: var(--gradient-main);
  z-index: 9999;
  transition: width 0.1s ease;
}

/* ============================================
   Promotions (v1.8.2)
   ============================================ */

/* Bannière promo */
.promo-banner {
  background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
  color: white;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1rem;
  animation: promoPulse 2s ease-in-out infinite;
  box-shadow: 0 4px 15px rgba(78, 205, 196, 0.3);
}

.promo-banner-icon {
  font-size: 1.3rem;
  animation: bounce 1s ease infinite;
}

.promo-banner-text {
  flex: 1;
  text-align: center;
}

@keyframes promoPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

/* Prix barré */
.original-price {
  font-size: 1.2rem;
  color: #999;
  text-decoration: line-through;
  margin-right: 10px;
  font-weight: 400;
}

.price-amount {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 5px;
}

/* Info économies */
.savings-info {
  background: linear-gradient(135deg, #48dbfb 0%, #0abde3 100%);
  color: white;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: 10px;
  display: inline-block;
  animation: shine 2s ease-in-out infinite;
}

@keyframes shine {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}

/* Section code promo */
.promo-code-section {
  margin: 20px 0;
  text-align: center;
}

.show-promo-link {
  color: var(--secondary);
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.3s ease;
  display: inline-block;
}

.show-promo-link:hover {
  color: var(--primary);
  transform: scale(1.05);
}

.promo-code-container {
  margin-top: 15px;
  padding: 15px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-md);
  animation: slideDown 0.3s ease;
}

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

.promo-code-input-group {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.promo-code-input-group input {
  padding: 12px 16px;
  font-size: 1rem;
  border: 2px solid #ddd;
  border-radius: var(--radius-sm);
  width: 180px;
  text-transform: uppercase;
  font-weight: 600;
  text-align: center;
  transition: all 0.3s ease;
}

.promo-code-input-group input:focus {
  border-color: var(--secondary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.2);
}

.validate-promo-btn {
  padding: 12px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  background: var(--secondary);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
}

.validate-promo-btn:hover {
  background: #3dbeb5;
  transform: translateY(-2px);
}

.validate-promo-btn:disabled {
  background: #ccc;
  cursor: not-allowed;
  transform: none;
}

.promo-code-message {
  margin-top: 10px;
  font-size: 0.9rem;
  min-height: 20px;
}

.promo-code-message.success {
  color: #27ae60;
  font-weight: 600;
}

.promo-code-message.error {
  color: #e74c3c;
}

.promo-code-message.loading {
  color: var(--text-light);
}

/* Prix avec promotion */
.price.promo-active {
  color: var(--secondary);
  animation: priceHighlight 0.5s ease;
}

@keyframes priceHighlight {
  0% { transform: scale(1); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* Responsive promo */
@media (max-width: 480px) {
  .promo-code-input-group {
    flex-direction: column;
    align-items: center;
  }
  
  .promo-code-input-group input {
    width: 100%;
    max-width: 250px;
  }
  
  .validate-promo-btn {
    width: 100%;
    max-width: 250px;
  }
  
  .promo-banner {
    font-size: 0.9rem;
    padding: 10px 15px;
  }
}