/**
 * PREMIUM COUNTRY PICKER STYLES v2.0 - NATIVE MOBILE EXCELLENCE
 * World-class design matching Wise/Revolut/Remitly standards
 * 
 * NEW in v2.0:
 * - SVG flag support for crisp rendering
 * - Swipe handle for mobile bottom-sheet
 * - Spring physics animations
 * - 60px+ touch targets on ALL interactive elements (accessibility compliant)
 * - Optimized for native mobile feel
 */

/* ===== TOUCH TARGET UTILITY (60px+ for Accessibility) ===== */
.touch-target {
  min-height: 60px;
  min-width: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== CONTAINER ===== */
.premium-picker {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.premium-picker.show {
  pointer-events: auto;
  opacity: 1;
}

/* ===== BACKDROP ===== */
.premium-picker__backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: fadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  transition: opacity 0.3s ease-out;
}

/* ===== MODAL (Desktop Default) ===== */
.premium-picker__modal {
  position: relative;
  width: 90%;
  max-width: 680px;
  max-height: 80vh;
  background: #ffffff;
  border-radius: 20px;
  box-shadow: 
    0 20px 60px rgba(15, 23, 42, 0.25),
    0 8px 24px rgba(15, 23, 42, 0.18),
    0 2px 8px rgba(15, 23, 42, 0.08);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.92);
  opacity: 0;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.premium-picker.show .premium-picker__modal {
  transform: scale(1);
  opacity: 1;
}

/* Dark Mode Support */
html.dark .premium-picker__modal {
  background: #1e293b;
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.6),
    0 8px 24px rgba(0, 0, 0, 0.4);
}

/* ===== SWIPE HANDLE (Mobile Only) ===== */
.premium-picker__swipe-handle {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 4px;
  background: rgba(100, 116, 139, 0.3);
  border-radius: 999px;
  display: none;
  touch-action: none;
}

html.dark .premium-picker__swipe-handle {
  background: rgba(148, 163, 184, 0.3);
}

/* ===== HEADER ===== */
.premium-picker__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 24px 24px 20px;
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  flex-shrink: 0;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}

.premium-picker__header:active {
  cursor: grabbing;
}

html.dark .premium-picker__header {
  border-bottom-color: rgba(71, 85, 105, 0.3);
}

.premium-picker__title {
  font-size: 20px;
  font-weight: 700;
  color: #0f172a;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0;
}

html.dark .premium-picker__title {
  color: #f8fafc;
}

.premium-picker__subtitle {
  font-size: 13px;
  color: #6b7280;
  margin: 4px 0 0;
  font-weight: 500;
}

html.dark .premium-picker__subtitle {
  color: #94a3b8;
}

.premium-picker__close {
  position: relative;
  width: 40px;
  height: 40px;
  padding: 10px;
  margin: -10px;
  border-radius: 999px;
  border: 1.5px solid #e5e7eb;
  background: #f9fafb;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
  color: #6b7280;
}

/* Enlarged hit area via negative-offset pseudo-element for 60px+ touch target */
.premium-picker__close::before {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 999px;
  pointer-events: none;
}

.premium-picker__close:hover {
  background: #fee2e2;
  border-color: #ef4444;
  color: #ef4444;
  transform: scale(1.05);
}

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

html.dark .premium-picker__close {
  background: #334155;
  border-color: #475569;
  color: #94a3b8;
}

html.dark .premium-picker__close:hover {
  background: #7f1d1d;
  border-color: #dc2626;
  color: #fca5a5;
}

/* ===== SEARCH ===== */
.premium-picker__search-wrapper {
  position: relative;
  padding: 0 24px 16px;
  flex-shrink: 0;
}

.premium-picker__search-icon {
  position: absolute;
  left: 40px;
  top: 50%;
  transform: translateY(-50%);
  color: #9ca3af;
  pointer-events: none;
}

html.dark .premium-picker__search-icon {
  color: #64748b;
}

.premium-picker__search {
  width: 100%;
  height: 60px; /* 60px minimum for accessibility and thumb-zone ergonomics */
  padding: 0 16px 0 48px;
  font-size: 15px;
  border: 1.5px solid rgba(148, 163, 184, 0.35);
  border-radius: 12px;
  background: #f9fafb;
  color: #0f172a;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
}

.premium-picker__search:focus {
  border-color: #007BFF;
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.08);
}

html.dark .premium-picker__search {
  background: #334155;
  border-color: #475569;
  color: #f8fafc;
}

html.dark .premium-picker__search:focus {
  background: #1e293b;
  border-color: #60a5fa;
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.15);
}

/* ===== ALPHABET PILLS ===== */
.premium-picker__letters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 24px 16px;
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
  flex-shrink: 0;
}

html.dark .premium-picker__letters {
  border-bottom-color: rgba(71, 85, 105, 0.3);
}

.premium-picker__letter {
  width: 60px;
  height: 60px;
  border-radius: 14px;
  border: 1.5px solid rgba(148, 163, 184, 0.35);
  background: #f9fafb;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  color: #475569;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
}

.premium-picker__letter:hover {
  background: linear-gradient(135deg, #e6f0ff 0%, #dbeafe 100%);
  border-color: #007BFF;
  color: #007BFF;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.15);
}

.premium-picker__letter:active {
  transform: translateY(0) scale(0.95);
}

.premium-picker__letter.active {
  background: linear-gradient(135deg, #007BFF 0%, #0066ff 100%);
  border-color: #007BFF;
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(0, 123, 255, 0.3);
}

html.dark .premium-picker__letter {
  background: #334155;
  border-color: #475569;
  color: #94a3b8;
}

html.dark .premium-picker__letter:hover {
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.2) 0%, rgba(59, 130, 246, 0.25) 100%);
  border-color: #60a5fa;
  color: #60a5fa;
}

/* ===== SECTIONS (Recent/Popular) ===== */
.premium-picker__section {
  padding: 16px 24px;
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
  flex-shrink: 0;
}

html.dark .premium-picker__section {
  border-bottom-color: rgba(71, 85, 105, 0.3);
}

.premium-picker__section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #6b7280;
  margin-bottom: 12px;
}

html.dark .premium-picker__section-label {
  color: #94a3b8;
}

/* Region Headers (Africa / Americas) - ULTRA PREMIUM STYLE */
.premium-picker__region-header {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: #3b82f6;
  padding: 24px 24px 14px 24px;
  margin-top: 24px;
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  border-top: 2px solid;
  border-image: linear-gradient(90deg, #60a5fa 0%, #a78bfa 100%) 1;
}

.premium-picker__region-header::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 18px;
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  border-radius: 999px;
  flex-shrink: 0;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
}

.premium-picker__region-header:first-child {
  margin-top: 0;
  border-top: none;
}

html.dark .premium-picker__region-header {
  color: #60a5fa;
  border-image: linear-gradient(90deg, #60a5fa 0%, #a78bfa 100%) 1;
}

html.dark .premium-picker__region-header::before {
  box-shadow: 0 0 8px rgba(96, 165, 250, 0.4);
}

/* Recent Grid */
.premium-picker__recent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}

.premium-picker__recent-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: #f9fafb;
  border: 1.5px solid rgba(148, 163, 184, 0.25);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: 60px; /* 60px minimum for accessibility and thumb-zone ergonomics */
}

.premium-picker__recent-card:hover {
  background: #e6f0ff;
  border-color: #007BFF;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 123, 255, 0.1);
}

.premium-picker__recent-card:active {
  transform: translateY(0) scale(0.98);
}

html.dark .premium-picker__recent-card {
  background: #334155;
  border-color: #475569;
}

html.dark .premium-picker__recent-card:hover {
  background: rgba(96, 165, 250, 0.15);
  border-color: #60a5fa;
}

.premium-picker__recent-flag {
  width: 24px;
  height: 18px;
  object-fit: cover;
  border-radius: 3px;
  flex-shrink: 0;
}

.premium-picker__recent-name {
  font-size: 14px;
  font-weight: 600;
  color: #0f172a;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

html.dark .premium-picker__recent-name {
  color: #f8fafc;
}

/* Popular Grid */
.premium-picker__popular-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.premium-picker__popular-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
  border: 1.5px solid rgba(148, 163, 184, 0.25);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: 62px; /* 60px+ minimum for accessibility and thumb-zone ergonomics */
}

.premium-picker__popular-card:hover {
  background: linear-gradient(135deg, #e6f0ff 0%, #dbeafe 100%);
  border-color: #007BFF;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 123, 255, 0.15);
}

.premium-picker__popular-card:active {
  transform: translateY(0) scale(0.98);
}

html.dark .premium-picker__popular-card {
  background: linear-gradient(135deg, #334155 0%, #1e293b 100%);
  border-color: #475569;
}

html.dark .premium-picker__popular-card:hover {
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.2) 0%, rgba(59, 130, 246, 0.15) 100%);
  border-color: #60a5fa;
}

.premium-picker__popular-flag {
  width: 32px;
  height: 24px;
  object-fit: cover;
  border-radius: 4px;
  flex-shrink: 0;
}

.premium-picker__popular-name {
  font-size: 15px;
  font-weight: 600;
  color: #0f172a;
}

html.dark .premium-picker__popular-name {
  color: #f8fafc;
}

/* ===== COUNTRY LIST ===== */
.premium-picker__list-container {
  flex: 1 1 auto;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
  overscroll-behavior: contain;
  /* Ultra-smooth scrolling - Above Premium Level */
  scroll-behavior: smooth;
  will-change: scroll-position;
}

.premium-picker__list {
  padding: 8px 16px 16px;
}

/* Smooth scrolling */
.premium-picker__list {
  scrollbar-width: thin;
  scrollbar-color: rgba(148, 163, 184, 0.3) transparent;
}

.premium-picker__list::-webkit-scrollbar {
  width: 8px;
}

.premium-picker__list::-webkit-scrollbar-track {
  background: transparent;
}

.premium-picker__list::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.3);
  border-radius: 999px;
}

.premium-picker__list::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.5);
}

/* Country Item */
.premium-picker__country {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1.5px solid transparent;
  background: transparent;
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%;
  text-align: left;
  min-height: 60px; /* 60px minimum for accessibility and thumb-zone ergonomics */
}

.premium-picker__country:hover,
.premium-picker__country.focused {
  background: #f3f6ff;
  border-color: rgba(0, 123, 255, 0.2);
  transform: translateX(2px);
}

.premium-picker__country:active {
  transform: translateX(0) scale(0.98);
}

.premium-picker__country.selected {
  background: #e6f0ff;
  border-color: #007BFF;
}

html.dark .premium-picker__country:hover,
html.dark .premium-picker__country.focused {
  background: rgba(96, 165, 250, 0.1);
  border-color: rgba(96, 165, 250, 0.3);
}

html.dark .premium-picker__country.selected {
  background: rgba(96, 165, 250, 0.2);
  border-color: #60a5fa;
}

.premium-picker__country-flag {
  width: 32px;
  height: 24px;
  object-fit: cover;
  border-radius: 4px;
  flex-shrink: 0;
}

.premium-picker__country-info {
  flex: 1;
  min-width: 0;
}

.premium-picker__country-name {
  font-size: 15px;
  font-weight: 600;
  color: #0f172a;
  margin-bottom: 2px;
}

html.dark .premium-picker__country-name {
  color: #f8fafc;
}

.premium-picker__country-iso {
  font-size: 12px;
  color: #6b7280;
  font-weight: 500;
}

html.dark .premium-picker__country-iso {
  color: #94a3b8;
}

.premium-picker__country-currency {
  padding: 4px 10px;
  border-radius: 999px;
  background: #e0edff;
  color: #007BFF;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

html.dark .premium-picker__country-currency {
  background: rgba(96, 165, 250, 0.15);
  color: #60a5fa;
}

.premium-picker__country-check {
  color: #007BFF;
  flex-shrink: 0;
}

html.dark .premium-picker__country-check {
  color: #60a5fa;
}

/* No Results */
.premium-picker__no-results {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  color: #9ca3af;
  text-align: center;
}

.premium-picker__no-results svg {
  margin-bottom: 16px;
  opacity: 0.4;
}

.premium-picker__no-results p {
  font-size: 15px;
  margin: 0;
}

html.dark .premium-picker__no-results {
  color: #64748b;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

/* ===== MOBILE RESPONSIVE (Bottom Sheet) ===== */
@media (max-width: 767px) {
  .premium-picker {
    align-items: flex-end;
  }
  
  .premium-picker__modal {
    width: 100%;
    max-width: 100%;
    height: 93vh;
    max-height: 93vh;
    border-radius: 24px 24px 0 0;
    box-shadow: 
      0 -10px 40px rgba(15, 23, 42, 0.3),
      0 -4px 16px rgba(15, 23, 42, 0.2);
    transform: translateY(100%);
    padding-top: 24px;
  }
  
  /* Ensure list container gets remaining space on mobile */
  .premium-picker__list-container {
    min-height: 200px;
  }
  
  .premium-picker.show .premium-picker__modal {
    transform: translateY(0);
  }
  
  /* Show swipe handle on mobile */
  .premium-picker__swipe-handle {
    display: block;
  }
  
  .premium-picker__header {
    padding: 16px 20px 16px;
    cursor: grab;
    touch-action: none;
  }
  
  .premium-picker__close {
    /* Ensure close button is visible and tappable on mobile */
    width: 44px;
    height: 44px;
    margin: 0;
    flex-shrink: 0;
  }
  
  .premium-picker__title {
    font-size: 21px;
  }
  
  .premium-picker__search-wrapper {
    padding: 0 20px 14px;
  }
  
  .premium-picker__search {
    height: 60px; /* Maintain 60px+ touch target on mobile */
    font-size: 16px;
  }
  
  /* Hide alphabet pills on mobile for cleaner UI */
  .premium-picker__letters {
    display: none;
  }
  
  .premium-picker__section {
    padding: 14px 20px;
  }
  
  .premium-picker__recent-grid,
  .premium-picker__popular-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .premium-picker__recent-card,
  .premium-picker__popular-card {
    min-height: 60px;
  }
  
  .premium-picker__list {
    padding: 8px 12px 24px;
  }
  
  .premium-picker__country {
    padding: 16px 14px;
    min-height: 66px; /* 60px+ for thumb-zone accessibility */
  }
  
  .premium-picker__country-flag {
    width: 36px;
    height: 27px;
  }
}

/* Tablet adjustments */
@media (min-width: 768px) and (max-width: 1024px) {
  .premium-picker__modal {
    max-width: 600px;
  }
  
  .premium-picker__letters {
    gap: 6px;
  }
  
  /* Maintain 60px+ touch target on tablet (accessibility requirement) */
  .premium-picker__letter {
    width: 60px;
    height: 60px;
  }
}

/* Accessibility: Reduce motion */
@media (prefers-reduced-motion: reduce) {
  .premium-picker,
  .premium-picker__modal,
  .premium-picker__backdrop,
  .premium-picker__country,
  .premium-picker__letter,
  .premium-picker__popular-card,
  .premium-picker__recent-card {
    transition: none;
    animation: none;
  }
}