/* ================================================
   VALENTINE'S PROJECT - COMMON STYLES
   ================================================ */

/* === GOOGLE FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Pacifico&family=Poppins:wght@300;400;500;600;700&family=Dancing+Script:wght@400;700&family=Great+Vibes&display=swap');

/* === CSS VARIABLES === */
:root {
  /* Free Tier Colors */
  --free-primary: #FF69B4;
  --free-secondary: #FFB6C1;
  --free-accent: #FF1744;
  --free-light: #FFF0F5;
  
  /* Premium Tier Colors */
  --premium-primary: #8B4789;
  --premium-secondary: #D4A5D4;
  --premium-accent: #FFD700;
  --premium-light: #F8F4F9;
  
  /* Common Colors */
  --white: #FFFFFF;
  --light-gray: #F5F5F5;
  --medium-gray: #CCCCCC;
  --dark-gray: #333333;
  --success: #28a745;
  --danger: #dc3545;
  
  /* Fonts */
  --font-heading: 'Pacifico', cursive;
  --font-romantic: 'Dancing Script', cursive;
  --font-elegant: 'Great Vibes', cursive;
  --font-body: 'Poppins', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 15px;
  --radius-lg: 25px;
  --radius-full: 50%;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* === GLOBAL RESETS === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--dark-gray);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  border: none;
  outline: none;
  font-family: var(--font-body);
  transition: var(--transition-normal);
}

/* === UTILITY CLASSES === */
.container-custom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

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

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

/* === GRADIENT TEXT === */
.gradient-text {
  background: linear-gradient(45deg, var(--free-primary), var(--free-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-premium {
  background: linear-gradient(45deg, var(--premium-primary), var(--premium-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === GLASSMORPHISM === */
.glassmorphism {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: var(--shadow-md);
}

.glassmorphism-dark {
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* === BUTTONS === */
.btn-valentine {
  padding: 14px 36px;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.btn-valentine::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-valentine:hover::before {
  width: 300px;
  height: 300px;
}

.btn-valentine:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-valentine:active {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--free-primary), var(--free-accent));
  color: var(--white);
}

.btn-premium {
  background: linear-gradient(135deg, var(--premium-primary), var(--premium-accent));
  color: var(--white);
}

.btn-success {
  background: linear-gradient(135deg, #28a745, #20c997);
  color: var(--white);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--free-primary);
  color: var(--free-primary);
}

.btn-outline:hover {
  background: var(--free-primary);
  color: var(--white);
}

.btn-lg {
  padding: 18px 48px;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 10px 24px;
  font-size: 0.9rem;
}

/* === CARDS === */
.card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

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

.card-romantic {
  background: linear-gradient(135deg, rgba(255, 182, 193, 0.3), rgba(255, 105, 180, 0.2));
  border: 2px solid rgba(255, 105, 180, 0.3);
}

/* === FLOATING HEARTS BACKGROUND === */
.heart-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.heart {
  position: absolute;
  font-size: 20px;
  opacity: 0;
  animation: float-hearts 15s infinite;
}

.heart:nth-child(1) { left: 10%; animation-delay: 0s; color: #FF69B4; }
.heart:nth-child(2) { left: 20%; animation-delay: 2s; color: #FF1744; }
.heart:nth-child(3) { left: 30%; animation-delay: 4s; color: #FFB6C1; }
.heart:nth-child(4) { left: 40%; animation-delay: 6s; color: #FF69B4; }
.heart:nth-child(5) { left: 50%; animation-delay: 8s; color: #FF1744; }
.heart:nth-child(6) { left: 60%; animation-delay: 10s; color: #FFB6C1; }
.heart:nth-child(7) { left: 70%; animation-delay: 12s; color: #FF69B4; }
.heart:nth-child(8) { left: 80%; animation-delay: 14s; color: #FF1744; }
.heart:nth-child(9) { left: 90%; animation-delay: 16s; color: #FFB6C1; }

@keyframes float-hearts {
  0% {
    bottom: -10%;
    opacity: 0;
    transform: translateX(0) rotate(0deg);
  }
  50% {
    opacity: 0.8;
    transform: translateX(100px) rotate(180deg);
  }
  100% {
    bottom: 110%;
    opacity: 0;
    transform: translateX(-100px) rotate(360deg);
  }
}

/* === PULSE ANIMATION === */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.pulse {
  animation: pulse 2s infinite;
}

/* === HEARTBEAT ANIMATION === */
@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  10%, 30% {
    transform: scale(1.1);
  }
  20%, 40% {
    transform: scale(1);
  }
}

.heartbeat {
  animation: heartbeat 1.5s infinite;
}

/* === FADE IN ANIMATION === */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.8s ease-out;
}

/* === SLIDE IN ANIMATION === */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-left {
  animation: slideInLeft 0.8s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.8s ease-out;
}

/* === ROTATE ANIMATION === */
@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.rotate {
  animation: rotate 20s linear infinite;
}

/* === FORM ELEMENTS === */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--dark-gray);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--medium-gray);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition-normal);
  background: var(--white);
}

.form-control:focus {
  outline: none;
  border-color: var(--free-primary);
  box-shadow: 0 0 0 3px rgba(255, 105, 180, 0.1);
}

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

.form-control-premium:focus {
  border-color: var(--premium-primary);
  box-shadow: 0 0 0 3px rgba(139, 71, 137, 0.1);
}

/* === FILE UPLOAD === */
.file-upload-wrapper {
  position: relative;
  overflow: hidden;
  display: inline-block;
  width: 100%;
}

.file-upload-input {
  position: absolute;
  left: -9999px;
}

.file-upload-label {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  border: 2px dashed var(--medium-gray);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-normal);
  background: var(--light-gray);
  text-align: center;
}

.file-upload-label:hover {
  border-color: var(--free-primary);
  background: rgba(255, 105, 180, 0.05);
}

.file-upload-label i {
  font-size: 2rem;
  margin-bottom: var(--spacing-xs);
  color: var(--free-primary);
}

/* === IMAGE PREVIEW === */
.image-preview {
  margin-top: var(--spacing-sm);
  border-radius: var(--radius-md);
  overflow: hidden;
  max-width: 300px;
  margin-left: auto;
  margin-right: auto;
}

.image-preview img {
  width: 100%;
  height: auto;
  display: block;
}

/* === LOADING SPINNER === */
.spinner {
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-left-color: var(--free-primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 20px auto;
}

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

/* === TOOLTIPS === */
.tooltip-custom {
  position: relative;
  display: inline-block;
}

.tooltip-custom .tooltip-text {
  visibility: hidden;
  background-color: var(--dark-gray);
  color: var(--white);
  text-align: center;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity var(--transition-normal);
  white-space: nowrap;
  font-size: 0.85rem;
}

.tooltip-custom:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

/* === BADGE === */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-lg);
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--free-primary);
  color: var(--white);
}

.badge-premium {
  background: var(--premium-accent);
  color: var(--dark-gray);
}

.badge-free {
  background: var(--success);
  color: var(--white);
}

/* === RESPONSIVE UTILITIES === */
.hide-mobile {
  display: block;
}

.show-mobile {
  display: none;
}

@media (max-width: 768px) {
  .hide-mobile {
    display: none;
  }
  
  .show-mobile {
    display: block;
  }
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 576px) {
  :root {
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
  }
  
  .btn-valentine {
    padding: 12px 28px;
    font-size: 0.95rem;
  }
  
  .btn-lg {
    padding: 14px 36px;
    font-size: 1rem;
  }
  
  .card {
    padding: var(--spacing-sm);
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
}

/* === SCROLLBAR STYLING === */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
  background: var(--free-primary);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--free-accent);
}

/* === SELECTION === */
::selection {
  background: var(--free-primary);
  color: var(--white);
}

::-moz-selection {
  background: var(--free-primary);
  color: var(--white);
}