/**
 * Valentine's Day Boilerplate - Component Library
 * ================================================
 * Reusable UI components with romantic styling
 */

/* =============================================
   BUTTONS
   ============================================= */

/* Base Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  line-height: var(--leading-none);
  text-decoration: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-all);
  position: relative;
  overflow: hidden;
  border: var(--border-medium) solid transparent;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Primary Button */
.btn-primary {
  background: var(--gradient-romantic);
  color: var(--vday-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
  background: transparent;
  color: var(--vday-red);
  border-color: var(--vday-red);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--vday-red);
  color: var(--vday-white);
}

/* Ghost Button */
.btn-ghost {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  color: var(--vday-wine);
  border-color: var(--glass-border);
}

.btn-ghost:hover:not(:disabled) {
  background: rgba(var(--vday-pink-rgb), 0.5);
}

/* Romantic Button (with shimmer) */
.btn-romantic {
  background: var(--gradient-romantic);
  color: var(--vday-white);
  box-shadow: var(--shadow-glow);
}

.btn-romantic::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-shimmer);
  animation: shimmer 3s infinite;
}

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

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.btn-xl {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-xl);
}

/* Icon Button */
.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-full);
}

.btn-icon.btn-sm {
  width: 36px;
  height: 36px;
}

.btn-icon.btn-lg {
  width: 56px;
  height: 56px;
}

/* Button with Heart Hover */
.btn-heart:hover::after {
  content: '💕';
  position: absolute;
  animation: heartFloat 0.6s ease-out forwards;
}

@keyframes heartFloat {
  0% { opacity: 1; transform: translateY(0) scale(1); }
  100% { opacity: 0; transform: translateY(-30px) scale(1.5); }
}

/* =============================================
   CARDS
   ============================================= */

/* Base Card */
.card {
  background: var(--vday-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: var(--transition-all);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--vday-pink);
}

.card-body {
  padding: var(--space-6);
}

.card-footer {
  padding: var(--space-4) var(--space-6);
  background: var(--vday-blush);
  border-top: 1px solid var(--vday-pink);
}

/* Love Card (with top accent) */
.card-love {
  position: relative;
}

.card-love::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-romantic);
}

/* Glass Card */
.card-glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}

/* Letter Card */
.card-letter {
  background: linear-gradient(135deg, #FFFEF0 0%, #FFF5E6 100%);
  position: relative;
  box-shadow: var(--shadow-xl);
}

.card-letter::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    transparent,
    transparent 27px,
    rgba(var(--vday-red-rgb), 0.08) 28px
  );
  pointer-events: none;
}

/* Image Card */
.card-image {
  position: relative;
}

.card-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 0;
}

.card-image .card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-4);
  background: linear-gradient(transparent, rgba(114, 47, 55, 0.9));
  color: var(--vday-white);
}

/* =============================================
   BADGES & TAGS
   ============================================= */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.badge-primary {
  background: var(--vday-red);
  color: var(--vday-white);
}

.badge-secondary {
  background: var(--vday-pink);
  color: var(--vday-wine);
}

.badge-outline {
  background: transparent;
  border: 1px solid var(--vday-red);
  color: var(--vday-red);
}

.badge-love {
  background: var(--gradient-romantic);
  color: var(--vday-white);
}

/* Tag */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--vday-blush);
  color: var(--vday-wine);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  transition: var(--transition-colors);
}

.tag:hover {
  background: var(--vday-pink);
}

/* =============================================
   FORMS
   ============================================= */

/* Form Group */
.form-group {
  margin-bottom: var(--space-6);
}

/* Input */
.input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--vday-wine);
  background: var(--vday-white);
  border: var(--border-medium) solid var(--vday-pink);
  border-radius: var(--radius-lg);
  transition: var(--transition-all);
}

.input:focus {
  outline: none;
  border-color: var(--vday-red);
  box-shadow: 0 0 0 4px rgba(var(--vday-red-rgb), 0.1);
}

.input::placeholder {
  color: var(--vday-rose-gold);
  opacity: 0.7;
}

/* Romantic Input (with glow) */
.input-romantic:focus {
  border-color: var(--vday-red);
  box-shadow: var(--shadow-glow);
}

/* Textarea */
.textarea {
  min-height: 120px;
  resize: vertical;
}

/* Select */
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23C41E3A' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
}

/* Checkbox & Radio */
.checkbox-wrapper,
.radio-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
}

.checkbox,
.radio {
  width: 20px;
  height: 20px;
  accent-color: var(--vday-red);
}

/* Form Hint */
.form-hint {
  font-size: var(--text-sm);
  color: var(--vday-rose-gold);
  margin-top: var(--space-2);
}

/* Form Error */
.form-error {
  font-size: var(--text-sm);
  color: var(--vday-error);
  margin-top: var(--space-2);
}

.input.error {
  border-color: var(--vday-error);
}

/* =============================================
   ALERTS & NOTIFICATIONS
   ============================================= */

.alert {
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.alert-love {
  background: var(--gradient-blush);
  border-left: 4px solid var(--vday-red);
  color: var(--vday-wine);
}

.alert-success {
  background: #E8F5E9;
  border-left: 4px solid var(--vday-success);
  color: #2E7D32;
}

.alert-warning {
  background: #FFF3E0;
  border-left: 4px solid var(--vday-warning);
  color: #E65100;
}

.alert-error {
  background: #FFEBEE;
  border-left: 4px solid var(--vday-error);
  color: #C62828;
}

/* Toast */
.toast {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  padding: var(--space-4) var(--space-6);
  background: var(--vday-wine);
  color: var(--vday-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-toast);
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* =============================================
   AVATARS
   ============================================= */

.avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 3px solid var(--vday-pink);
}

.avatar-sm { width: 32px; height: 32px; }
.avatar-lg { width: 64px; height: 64px; }
.avatar-xl { width: 96px; height: 96px; }

.avatar-group {
  display: flex;
}

.avatar-group .avatar {
  margin-left: -12px;
  border: 2px solid var(--vday-white);
}

.avatar-group .avatar:first-child {
  margin-left: 0;
}

/* Heart-shaped Avatar */
.avatar-heart {
  border-radius: var(--radius-heart);
}

/* =============================================
   PROGRESS & LOADERS
   ============================================= */

/* Progress Bar */
.progress {
  width: 100%;
  height: 8px;
  background: var(--vday-pink);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--gradient-romantic);
  border-radius: var(--radius-full);
  transition: width 0.5s ease;
}

/* Heart Loader */
.loader-heart {
  font-size: var(--text-3xl);
  animation: heartbeat 1s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  15% { transform: scale(1.15); }
  30% { transform: scale(1); }
  45% { transform: scale(1.1); }
  60% { transform: scale(1); }
}

/* Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--vday-pink);
  border-top-color: var(--vday-red);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

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

/* =============================================
   DIVIDERS
   ============================================= */

.divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--vday-rose-gold);
  margin: var(--space-6) 0;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--vday-pink);
}

.divider-heart::before,
.divider-heart::after {
  background: var(--gradient-romantic);
}

/* =============================================
   TOOLTIPS
   ============================================= */

.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-2) var(--space-3);
  background: var(--vday-wine);
  color: var(--vday-white);
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-all);
  z-index: var(--z-tooltip);
}

.tooltip:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-8px);
}

/* =============================================
   MODALS
   ============================================= */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(114, 47, 55, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-all);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--vday-white);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9) translateY(20px);
  transition: var(--transition-all);
}

.modal-backdrop.active .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--vday-pink);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: var(--space-6);
}

.modal-footer {
  padding: var(--space-4) var(--space-6);
  background: var(--vday-blush);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
}

/* =============================================
   TABS
   ============================================= */

.tabs {
  display: flex;
  gap: var(--space-2);
  border-bottom: 2px solid var(--vday-pink);
  margin-bottom: var(--space-6);
}

.tab {
  padding: var(--space-3) var(--space-6);
  font-weight: var(--font-medium);
  color: var(--vday-rose-gold);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: var(--transition-colors);
}

.tab:hover {
  color: var(--vday-red);
}

.tab.active {
  color: var(--vday-red);
  border-bottom-color: var(--vday-red);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* =============================================
   ACCORDION
   ============================================= */

.accordion-item {
  border: 1px solid var(--vday-pink);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-2);
  overflow: hidden;
}

.accordion-header {
  padding: var(--space-4) var(--space-6);
  background: var(--vday-blush);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: var(--font-semibold);
  transition: var(--transition-colors);
}

.accordion-header:hover {
  background: var(--vday-pink);
}

.accordion-icon {
  transition: var(--transition-transform);
}

.accordion-item.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-body {
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.accordion-item.active .accordion-body {
  padding: var(--space-4) var(--space-6);
  max-height: 500px;
}

/* =============================================
   NAVIGATION
   ============================================= */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  border-bottom: 1px solid var(--glass-border);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-script);
  font-size: var(--text-2xl);
  color: var(--vday-red);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: var(--space-6);
}

.nav-link {
  color: var(--vday-wine);
  font-weight: var(--font-medium);
  text-decoration: none;
  transition: var(--transition-colors);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-romantic);
  transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* =============================================
   FOOTER
   ============================================= */

.footer {
  background: var(--gradient-wine);
  color: var(--vday-white);
  padding: var(--space-12) var(--space-6);
  text-align: center;
}

.footer a {
  color: var(--vday-pink);
}

.footer a:hover {
  color: var(--vday-white);
}