/* ========================================
   2026 D-Day 카운터 - Apple Calendar 스타일
   Primary: #3498db (Blue)
   ======================================== */

/* CSS Variables */
:root {
  /* Colors - Dark Theme (Default) */
  --primary: #3498db;
  --primary-light: #5dade2;
  --primary-dark: #2980b9;

  --bg-primary: #1a1a1a;
  --bg-secondary: #2a2a2a;
  --bg-card: rgba(255, 255, 255, 0.05);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --border: rgba(255, 255, 255, 0.1);

  /* Category Colors */
  --cat-birthday: #e91e63;
  --cat-anniversary: #9c27b0;
  --cat-exam: #ff9800;
  --cat-travel: #00bcd4;
  --cat-work: #4caf50;
  --cat-other: #9e9e9e;

  /* Gradients */
  --gradient-bg: linear-gradient(135deg, #1a1a1a 0%, #2c3e50 50%, #1a1a1a 100%);
  --gradient-blue: linear-gradient(135deg, #3498db 0%, #2980b9 100%);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

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

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-blue: 0 8px 24px rgba(52, 152, 219, 0.3);
}

/* === App Loader === */
.app-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.app-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.loader-emoji {
  font-size: 48px;
  animation: loader-bounce 1s ease-in-out infinite;
}

.loader-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: loader-spin 0.8s linear infinite;
}

.loader-text {
  font-size: 14px;
  color: var(--text-secondary);
  letter-spacing: 1px;
  font-weight: 500;
}

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

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

/* Light Theme */
[data-theme="light"] {
  --bg-primary: #f5f5fa;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --text-primary: #1a1a2e;
  --text-secondary: #5a5a70;
  --border: rgba(52, 152, 219, 0.15);
  --gradient-bg: linear-gradient(135deg, #f5f5fa 0%, #ffffff 50%, #f5f5fa 100%);
  --shadow-sm: 0 2px 8px rgba(52, 152, 219, 0.1);
  --shadow-md: 0 4px 16px rgba(52, 152, 219, 0.15);
  --shadow-lg: 0 8px 32px rgba(52, 152, 219, 0.2);
}

/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

/* 터치 최적화 */
button, a, input, [role="button"], [role="link"] {
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
}

input[type="text"], textarea {
  -webkit-user-select: text;
  user-select: text;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
  background: var(--gradient-bg);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  transition: all 0.3s ease;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  background: rgba(26, 26, 26, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: var(--spacing-md) var(--spacing-sm);
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

[data-theme="light"] .header {
  background: rgba(255, 255, 255, 0.9);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.app-title {
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.emoji {
  font-size: 1.8rem;
}

.theme-toggle {
  position: fixed;
  top: 12px;
  right: 56px;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 18px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

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

/* Section Title */
.section-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

/* Add Button */
.add-section {
  margin-bottom: var(--spacing-lg);
}

.add-btn {
  width: 100%;
  background: var(--gradient-blue);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  box-shadow: var(--shadow-blue);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: 60px;
  animation: slideInUp 0.6s ease 0s;
}

.add-btn:hover {
  transform: scale(0.97);
  box-shadow: 0 12px 32px rgba(52, 152, 219, 0.4);
}

.add-btn:active {
  transform: scale(0.95);
}

.btn-icon {
  font-size: 2rem;
  font-weight: 300;
}

/* Form Section */
.form-section {
  margin-bottom: var(--spacing-lg);
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.form-section.hidden {
  display: none;
}

.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
}

.form-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.input-field,
.select-field {
  width: 100%;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.input-field:focus,
.select-field:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.btn-primary,
.btn-secondary {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: 56px;
}

.btn-primary {
  background: var(--gradient-blue);
  color: white;
}

.btn-primary:hover {
  transform: scale(0.97);
  box-shadow: var(--shadow-blue);
}

.btn-primary:active {
  transform: scale(0.95);
}

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

.btn-secondary:hover {
  background: var(--bg-card);
  transform: scale(0.97);
}

.btn-secondary:active {
  transform: scale(0.95);
}

/* Sort Section */
.sort-section {
  margin-bottom: var(--spacing-md);
}

.sort-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
}

.sort-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.sort-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.sort-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* Mini Calendar */
.calendar-section { margin-bottom: var(--spacing-xl); }
.mini-calendar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
}
.cal-header {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--primary);
}
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  text-align: center;
}
.cal-day-name {
  font-size: 0.7rem;
  color: var(--text-secondary);
  padding: 4px 0;
  font-weight: 600;
}
.cal-cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  border-radius: 8px;
  transition: all 0.2s ease;
  color: var(--text-primary);
}
.cal-cell.empty { visibility: hidden; }
.cal-cell.cal-today {
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 2px 8px rgba(52, 152, 219, 0.4);
}
.cal-cell.cal-event {
  position: relative;
  font-weight: 700;
}
.cal-cell.cal-event::after {
  content: '';
  position: absolute;
  bottom: 2px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}
.cal-cell.cal-birthday::after { background: #e74c3c; }
.cal-cell.cal-anniversary::after { background: #e91e63; }
.cal-cell.cal-exam::after { background: #f39c12; }
.cal-cell.cal-travel::after { background: #2ecc71; }
.cal-cell.cal-work::after { background: #3498db; }

/* Events Section */
.events-section {
  margin-bottom: var(--spacing-xl);
}

.events-container {
  display: grid;
  gap: var(--spacing-md);
}

.event-card {
  background: var(--bg-card);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--spacing-md);
  align-items: center;
  transition: all 0.3s ease;
  animation: slideIn 0.4s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.event-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.08);
}

.event-card.birthday { border-left-color: var(--cat-birthday); }
.event-card.anniversary { border-left-color: var(--cat-anniversary); }
.event-card.exam { border-left-color: var(--cat-exam); }
.event-card.travel { border-left-color: var(--cat-travel); }
.event-card.work { border-left-color: var(--cat-work); }
.event-card.other { border-left-color: var(--cat-other); }

.event-dday {
  text-align: center;
  min-width: 80px;
}

.dday-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.dday-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
}

.dday-value.today {
  color: #e74c3c;
}

.dday-value.passed {
  color: var(--text-secondary);
}

.event-info {
  flex: 1;
}

.event-name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}

.event-details {
  display: flex;
  gap: var(--spacing-md);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.event-category {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.event-actions {
  display: flex;
  gap: var(--spacing-xs);
}

.action-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.action-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: scale(1.05);
}

.action-btn.delete:hover {
  background: #e74c3c;
  border-color: #e74c3c;
}

/* Stats */
.stats-section {
  margin-bottom: var(--spacing-xl);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-md);
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  text-align: center;
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: var(--primary);
  box-shadow: var(--shadow-blue);
}

.stat-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Empty Message */
.empty-message {
  text-align: center;
  color: var(--text-secondary);
  padding: var(--spacing-xl);
  font-style: italic;
  line-height: 1.8;
}

/* Footer */
.footer {
  text-align: center;
  padding: var(--spacing-lg);
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  font-size: 13px;
  padding: 12px 0;
  transition: color 0.2s;
}

.back-link:hover {
  color: rgba(255,255,255,0.85);
}

[data-theme="light"] .back-link {
  color: rgba(26, 26, 46, 0.4);
}

[data-theme="light"] .back-link:hover {
  color: rgba(26, 26, 46, 0.7);
}

/* Ad Banner */
.ad-banner {
  background: var(--bg-secondary);
  border: 1px dashed var(--border);
  text-align: center;
  padding: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.ad-placeholder {
  opacity: 0.5;
}

/* Edit Button */
.action-btn.edit:hover {
  background: var(--primary);
  border-color: var(--primary);
}

/* Premium Button */
.premium-section {
  margin-bottom: var(--spacing-lg);
}

.premium-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  width: 100%;
  padding: var(--spacing-md);
  background: linear-gradient(135deg, #3498db 0%, #2c3e50 50%, #1abc9c 100%);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 20px rgba(52, 152, 219, 0.4);
  min-height: 56px;
  animation: slideInUp 0.6s ease 0s;
}

.premium-btn:hover {
  transform: scale(0.97);
  box-shadow: 0 8px 30px rgba(52, 152, 219, 0.5);
}

.premium-btn:active {
  transform: scale(0.95);
}

.premium-icon {
  font-size: 1.4rem;
}

.premium-badge {
  background: rgba(255, 255, 255, 0.25);
  padding: 2px 8px;
  border-radius: 8px;
  font-size: 0.7rem;
  letter-spacing: 1px;
}

/* Interstitial Ad */
.interstitial-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.interstitial-overlay.hidden { display: none; }

.interstitial-content {
  text-align: center;
  max-width: 400px;
  width: 90%;
}

.interstitial-label {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
  margin-bottom: var(--spacing-sm);
}

.ad-placeholder-large {
  background: var(--bg-card);
  border: 2px dashed var(--border);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-ad-btn {
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  cursor: pointer;
  min-height: 48px;
}

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

/* Premium Modal */
.premium-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9998;
  padding: var(--spacing-sm);
}

.premium-modal.hidden { display: none; }

.premium-modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  max-width: 500px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
}

.premium-close {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.8rem;
  cursor: pointer;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.premium-close:hover {
  background: rgba(52, 152, 219, 0.2);
  color: var(--primary);
}

.premium-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.premium-modal-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: var(--spacing-xs);
}

.premium-header h2 {
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.5rem;
}

.premium-highlight {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.premium-highlight h3 {
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.premium-dday-card {
  background: var(--gradient-blue);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.premium-dday-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
}

.premium-dday-name {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.9);
}

.premium-dday-date {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

.premium-weeks {
  margin-top: var(--spacing-sm);
  color: var(--text-secondary);
}

.premium-today {
  margin-top: var(--spacing-sm);
  color: #e74c3c;
  font-weight: 700;
}

.premium-analysis-item {
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.premium-analysis-item h3 {
  color: var(--primary);
  font-size: 1rem;
  margin-bottom: var(--spacing-xs);
}

.premium-analysis-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.premium-timeline {
  display: grid;
  gap: var(--spacing-xs);
}

.timeline-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid var(--border);
}

.timeline-dday {
  min-width: 60px;
  font-weight: 700;
  color: var(--primary);
  font-size: 0.9rem;
}

.timeline-name {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Recommendations Section */
.recommendations-section { margin: 24px 0 0; padding: 0 16px; }
.rec-title { font-size: 15px; font-weight: 700; color: rgba(255,255,255,0.65); margin-bottom: 12px; text-align: center; letter-spacing: 0.5px; }
.rec-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.rec-card { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 16px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: 16px; text-decoration: none; color: #fff; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); text-align: center; min-height: 140px; justify-content: center; }
.rec-card:hover { background: rgba(255,255,255,0.12); transform: translateY(-4px); box-shadow: 0 8px 24px rgba(52, 152, 219, 0.2); }
.rec-icon { font-size: 32px; }
.rec-info { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.rec-name { font-size: 13px; font-weight: 600; }
.rec-desc { font-size: 11px; color: rgba(255,255,255,0.65); }

/* Responsive */
@media (max-width: 768px) {
  .app-title {
    font-size: 1.2rem;
  }

  .event-card {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .event-dday {
    border-bottom: 1px solid var(--border);
    padding-bottom: var(--spacing-sm);
  }

  .event-details {
    justify-content: center;
  }

  .event-actions {
    justify-content: center;
    margin-top: var(--spacing-sm);
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* Language Selector */
.language-selector {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
}

.lang-btn {
  background: rgba(52, 152, 219, 0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(52, 152, 219, 0.4);
  color: #fff;
  font-size: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lang-btn:hover {
  background: rgba(52, 152, 219, 0.5);
  transform: scale(1.05);
}

.lang-menu {
  position: absolute;
  top: 52px;
  right: 0;
  background: rgba(15, 20, 30, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(52, 152, 219, 0.3);
  border-radius: 12px;
  padding: 8px;
  min-width: 150px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.lang-menu.hidden {
  display: none;
}

.lang-option {
  width: 100%;
  padding: 10px 14px;
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
  border-radius: 8px;
  font-size: 14px;
  color: #c8d8e8;
  transition: background 0.2s;
}

.lang-option:hover {
  background: rgba(52, 152, 219, 0.2);
}

.lang-option.active {
  background: rgba(52, 152, 219, 0.3);
  font-weight: 600;
}

/* === Accessibility Improvements === */
button:focus-visible,a:focus-visible,input:focus-visible,[role="button"]:focus-visible{outline:3px solid #3498db;outline-offset:2px;}
button,a[href],input[type="button"],input[type="submit"],[role="button"]{min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;}
.skip-link{position:absolute;top:-40px;left:0;background:#3498db;color:white;padding:8px;text-decoration:none;z-index:100;}
.skip-link:focus{top:0;}
[role="dialog"]{z-index:1000;}
@media (prefers-reduced-motion: reduce){*{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important;}}
/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark, var(--bg-primary, var(--background, #0f0f23)));
}

::-webkit-scrollbar-thumb {
    background: #3498db;
    border-radius: 5px;
    border: 2px solid var(--bg-dark, var(--bg-primary, var(--background, #0f0f23)));
}

::-webkit-scrollbar-thumb:hover {
    background: #5cace2;
    opacity: 0.8;
}

/* Selection Color */
::selection {
    background: #3498db;
    color: white;
}

::-moz-selection {
    background: #3498db;
    color: white;
}

@media (prefers-contrast: more){button{border:2px solid #3498db;}}
.rec-card:focus-visible,.dday-item:focus-visible{outline:3px solid #3498db;outline-offset:4px;}

/* Light theme rec/back-link/premium overrides */
[data-theme="light"] .rec-card { background: rgba(0,0,0,0.03); border-color: rgba(0,0,0,0.08); }
[data-theme="light"] .rec-card:hover { background: rgba(0,0,0,0.06); }
[data-theme="light"] .rec-title { color: rgba(26,26,46,0.5); }
[data-theme="light"] .rec-name { color: #1a1a2e; }
[data-theme="light"] .rec-desc { color: #555; }
[data-theme="light"] .premium-dday-name { color: #1a1a2e; }
[data-theme="light"] .premium-dday-date { color: #555; }
[data-theme="light"] .interstitial-label { color: #333; }