/* ============================================
   KṬP Saikhamakawn — Components
   Reusable UI components
   ============================================ */

/* ========================
   BUTTONS
   ======================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-6);
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  line-height: 1;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.15) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}

.btn:hover::after {
  transform: translateX(100%);
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-sky), var(--brand-sky-dark));
  color: #fff;
  box-shadow: 0 4px 15px rgba(135, 206, 235, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(135, 206, 235, 0.4);
  background: linear-gradient(135deg, var(--brand-sky-light), var(--brand-sky));
}

.btn-secondary {
  background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-dark));
  color: var(--brand-black);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.25);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.35);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-outline:hover {
  border-color: var(--brand-sky);
  color: var(--brand-sky);
  background: rgba(135, 206, 235, 0.08);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  padding: var(--sp-2) var(--sp-3);
}

.btn-ghost:hover {
  color: var(--color-text);
  background: var(--color-bg-hover);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-lg);
  font-size: var(--fs-lg);
}

.btn-sm {
  padding: var(--sp-2) var(--sp-4);
  font-size: var(--fs-xs);
  border-radius: var(--radius-lg);
}

.btn-lg {
  padding: var(--sp-4) var(--sp-8);
  font-size: var(--fs-md);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ========================
   CARDS
   ======================== */
.card {
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

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

.card-body {
  padding: var(--sp-5);
}

.card-image {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--sp-2);
  color: var(--color-text);
}

.card-text {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-top: var(--sp-3);
  font-size: var(--fs-xs);
  color: var(--color-text-tertiary);
}

.card-meta svg {
  width: 14px;
  height: 14px;
}

.card-actions {
  display: flex;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}

/* ========================
   BADGES / TAGS
   ======================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: var(--sp-1) var(--sp-3);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  border-radius: var(--radius-full);
  line-height: 1.4;
}

.badge-primary {
  background: rgba(135, 206, 235, 0.15);
  color: var(--brand-sky-dark);
}

[data-theme="dark"] .badge-primary {
  background: rgba(135, 206, 235, 0.12);
  color: var(--brand-sky-light);
}

.badge-gold {
  background: rgba(255, 215, 0, 0.15);
  color: var(--brand-gold-dark);
}

[data-theme="dark"] .badge-gold {
  background: rgba(255, 215, 0, 0.12);
  color: var(--brand-gold-light);
}

.badge-red {
  background: rgba(220, 20, 60, 0.1);
  color: var(--brand-red);
}

.badge-featured {
  background: linear-gradient(135deg, var(--brand-gold), var(--brand-gold-dark));
  color: var(--brand-black);
  font-weight: var(--fw-semibold);
}

/* ========================
   SEARCH BAR
   ======================== */
.search-container {
  position: relative;
  width: 100%;
  max-width: 500px;
}

.search-input {
  width: 100%;
  padding: var(--sp-3) var(--sp-4) var(--sp-3) var(--sp-10);
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  font-size: var(--fs-sm);
  color: var(--color-text);
  transition: all var(--transition-base);
}

.search-input:focus {
  border-color: var(--brand-sky);
  box-shadow: 0 0 0 3px rgba(135, 206, 235, 0.15);
}

.search-input::placeholder {
  color: var(--color-text-tertiary);
}

.search-icon {
  position: absolute;
  left: var(--sp-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-tertiary);
  pointer-events: none;
}

.search-clear {
  position: absolute;
  right: var(--sp-3);
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-clear:hover {
  background: var(--color-bg-hover);
  color: var(--color-text);
}

.search-input:not(:placeholder-shown) ~ .search-clear {
  display: flex;
}

/* ========================
   FILTER BAR
   ======================== */
.filter-bar {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  align-items: center;
  overflow-x: auto;
  padding-top: 12px;
  padding-bottom: var(--sp-2);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  scroll-snap-type: x mandatory;
}
.filter-bar::-webkit-scrollbar {
  display: none;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 6px 14px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-bg-card);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  white-space: nowrap;
  scroll-snap-align: start;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
}

.filter-chip:hover {
  background: var(--color-bg-hover);
  color: var(--color-text);
  transform: translateY(-2px);
  border-color: var(--color-text-tertiary);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}

.filter-chip.active {
  background: linear-gradient(135deg, var(--brand-sky), var(--brand-sky-dark));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 6px 16px rgba(135, 206, 235, 0.35);
  transform: translateY(-2px);
}

.subfilter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 4px 12px;
  font-size: 11px;
  font-weight: var(--fw-medium);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.subfilter-chip:hover {
  border-color: var(--color-text);
  color: var(--color-text);
}

.subfilter-chip.active {
  border-color: var(--color-text);
  color: var(--color-text);
  background: var(--color-bg-hover);
}

.filter-select {
  padding: var(--sp-2) var(--sp-4);
  padding-right: var(--sp-8);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--fs-xs);
  color: var(--color-text);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' 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 12px center;
}

/* ========================
   PAGINATION
   ======================== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  margin-top: var(--sp-8);
}

.pagination-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--sp-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg-card);
  color: var(--color-text-secondary);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-btn:hover {
  border-color: var(--brand-sky);
  color: var(--brand-sky);
}

.pagination-btn.active {
  background: var(--brand-sky);
  color: #fff;
  border-color: var(--brand-sky);
}

.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.load-more-btn {
  display: block;
  margin: var(--sp-8) auto 0;
  padding: var(--sp-3) var(--sp-8);
}

/* ========================
   MODAL
   ======================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

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

.modal {
  background: var(--color-bg-card);
  border-radius: var(--radius-2xl);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-xl);
}

@media (max-width: 640px) {
  .modal {
    border-radius: var(--radius-xl);
    max-height: 95vh;
  }
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5);
  border-bottom: 1px solid var(--color-border-light);
}

@media (max-width: 640px) {
  .modal-header {
    padding: var(--sp-4);
  }
}

.modal-header h3 {
  font-size: var(--fs-lg);
}

.modal-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--fs-xl);
}

.modal-close:hover {
  background: var(--color-bg-hover);
  color: var(--color-text);
}

.modal-body {
  padding: var(--sp-5);
}

@media (max-width: 640px) {
  .modal-body {
    padding: var(--sp-4);
  }
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5) var(--sp-5);
}

@media (max-width: 640px) {
  .modal-footer {
    padding: var(--sp-3) var(--sp-4) var(--sp-4);
  }
}

/* Lightbox Modal (for photos) */
.lightbox-modal .modal {
  max-width: 95vw;
  max-height: 95vh;
  background: rgba(0, 0, 0, 0.95);
  border-radius: var(--radius-xl);
}

.lightbox-image {
  width: 100%;
  height: auto;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
}

.lightbox-info {
  padding: var(--sp-4);
  color: #fff;
}

.lightbox-actions {
  display: flex;
  gap: var(--sp-3);
  padding: 0 var(--sp-4) var(--sp-4);
}

@media (max-width: 767px) {
  .lightbox-nav-btn {
    display: none !important;
  }
}

/* ========================
   TOAST NOTIFICATIONS
   ======================== */
.toast-container {
  position: fixed;
  top: calc(var(--header-height) + var(--sp-4));
  right: var(--sp-4);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: fadeInRight 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
  min-width: 250px;
  max-width: 380px;
}

@keyframes fadeOut {
  to { opacity: 0; transform: translateX(100%); }
}

/* ========================
   GLOBAL RECAPTCHA OVERLAY
   ======================== */
.global-recaptcha-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 2rem;
  text-align: center;
  color: white;
  transition: opacity 0.5s ease-in-out, visibility 0.5s;
}

.global-recaptcha-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.global-recaptcha-card {
  background: white;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  color: var(--color-text);
  max-width: 400px;
  width: 100%;
}

.global-recaptcha-card h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
  color: var(--color-text);
}

.global-recaptcha-card p {
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.5;
}

.global-recaptcha-container {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}

.toast-success { border-left: 3px solid var(--color-success); }
.toast-error { border-left: 3px solid var(--color-error); }
.toast-info { border-left: 3px solid var(--color-info); }

.toast-message {
  flex: 1;
  font-size: var(--fs-sm);
  color: var(--color-text);
}

/* ========================
   FILE TYPE ICONS
   ======================== */
.file-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  text-transform: uppercase;
  flex-shrink: 0;
}

.file-icon-pdf {
  background: rgba(220, 20, 60, 0.1);
  color: var(--brand-red);
}

.file-icon-doc {
  background: rgba(59, 130, 246, 0.1);
  color: #3b82f6;
}

.file-icon-docx {
  background: rgba(59, 130, 246, 0.1);
  color: #2563eb;
}

/* ========================
   SOCIAL ICONS
   ======================== */
.social-links {
  display: flex;
  gap: var(--sp-3);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.1);
  color: var(--footer-text);
  font-size: var(--fs-xl);
  transition: all var(--transition-base);
}

.social-link:hover {
  transform: translateY(-3px);
}

.social-link.instagram:hover {
  background: linear-gradient(135deg, #833ab4, #fd1d1d, #fcb045);
  color: #fff;
}

.social-link.facebook:hover {
  background: #1877f2;
  color: #fff;
}

.social-link.youtube:hover {
  background: #ff0000;
  color: #fff;
}

/* ========================
   EMPTY STATE
   ======================== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--sp-12) var(--sp-4);
  text-align: center;
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--sp-4);
  opacity: 0.4;
}

.empty-state h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-2);
}

.empty-state p {
  color: var(--color-text-tertiary);
  max-width: 300px;
}

/* ========================
   FORM ELEMENTS
   ======================== */
.form-group {
  margin-bottom: var(--sp-5);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  margin-bottom: var(--sp-2);
}

.form-input {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--fs-base);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
  border-color: var(--brand-sky);
  box-shadow: 0 0 0 3px rgba(135, 206, 235, 0.15);
}

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

.form-select {
  appearance: none;
  padding-right: var(--sp-10);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  cursor: pointer;
}

/* ========================
   RESULTS INFO
   ======================== */
.results-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3) 0;
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
}

.results-count {
  font-weight: var(--fw-medium);
}

/* ========================
   CONTENT GRID
   ======================== */
.content-grid {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .content-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .content-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Photo Grid */
.masonry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--sp-2);
  align-items: start;
}

@media (min-width: 640px) {
  .masonry-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--sp-4);
  }
}

@media (min-width: 1024px) {
  .masonry-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.masonry-item {
  width: 100%;
}

/* ========================
   TAB SYSTEM
   ======================== */
.tabs {
  display: flex;
  gap: var(--sp-1);
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab {
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text-secondary);
  white-space: nowrap;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

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

.tab.active {
  color: var(--brand-sky);
  border-bottom-color: var(--brand-sky);
}

/* =========================================
   Selection UI (Drive-Style)
   ========================================= */
.selectable-item {
  position: relative;
  user-select: none; /* Prevent text selection during shift-click/long-press */
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  transition: all var(--transition-base);
  cursor: pointer;
}

/* Selected State */
.selectable-item.selected {
  border-color: var(--brand-sky) !important;
  background-color: rgba(56, 189, 248, 0.05) !important;
  box-shadow: 0 0 0 2px var(--brand-sky) !important;
  transform: scale(0.98);
}

.selectable-item.selected::after {
  content: '✓';
  position: absolute;
  top: var(--sp-2);
  left: var(--sp-2);
  width: 24px;
  height: 24px;
  background-color: var(--brand-sky);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
  z-index: 10;
  box-shadow: var(--shadow-sm);
  animation: popIn 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* Hide manual checkboxes (we use JS logic now) */
.item-select-label {
  display: none !important;
}

/* =========================================
   Floating Selection Toolbar
   ========================================= */
.floating-selection-toolbar {
  position: fixed;
  bottom: var(--sp-6);
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  background: var(--color-bg-elevated);
  padding: var(--sp-3) var(--sp-5);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  width: max-content;
  max-width: 90vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}