/* ============================================
   Novostnik Mini App — Telegram-native styling
   Uses Telegram WebApp CSS variables for theming
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--tg-theme-bg-color, #fff);
  color: var(--tg-theme-text-color, #222);
  min-height: 100vh;
  padding-bottom: 20px;
}

/* ---------- Tab bar ---------- */

.tabs {
  display: flex;
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--tg-theme-bg-color, #fff);
  border-bottom: 1px solid var(--tg-theme-hint-color, #ccc);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tab {
  flex: 0 0 auto;
  padding: 12px 14px;
  border: none;
  background: none;
  font-size: 13px;
  font-weight: 500;
  color: var(--tg-theme-hint-color, #999);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.tab.active {
  color: var(--tg-theme-button-color, #3390ec);
  border-bottom-color: var(--tg-theme-button-color, #3390ec);
}

/* ---------- Tab content ---------- */

.tab-content {
  display: none;
  padding: 16px;
  animation: fadeIn 0.2s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Filter bar ---------- */

.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.filter-bar select {
  flex: 1;
  margin-bottom: 0;
}

/* ---------- Category card (sources/channels list) ---------- */

.category-card {
  background: var(--tg-theme-secondary-bg-color, #f5f5f5);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
}

.category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  user-select: none;
}

.category-header .arrow {
  transition: transform 0.2s;
  font-size: 12px;
  color: var(--tg-theme-hint-color, #999);
}

.category-card.open .category-header .arrow {
  transform: rotate(90deg);
}

.category-channels {
  display: none;
  padding: 0 16px 12px;
}

.category-card.open .category-channels {
  display: block;
}

/* ---------- Source item ---------- */

.source-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--tg-theme-bg-color, #fff);
  font-size: 14px;
  gap: 8px;
}

.source-item:last-child {
  border-bottom: none;
}

.source-info {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
  flex-wrap: wrap;
}

.source-type-badge {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.source-url {
  color: var(--tg-theme-link-color, #3390ec);
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.source-category-tag {
  font-size: 11px;
  color: var(--tg-theme-hint-color, #999);
  background: var(--tg-theme-bg-color, #fff);
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}

.source-default-badge {
  font-size: 10px;
  color: var(--tg-theme-button-color, #3390ec);
  background: rgba(51, 144, 236, 0.1);
  padding: 1px 5px;
  border-radius: 3px;
  flex-shrink: 0;
}

/* ---------- Autofill bar ---------- */

.autofill-bar {
  display: flex;
  gap: 8px;
  padding: 8px 16px;
}

.autofill-bar .btn {
  flex: 1;
  font-size: 13px;
  padding: 10px 12px;
}

.btn.secondary {
  background: var(--tg-theme-secondary-bg-color, #f0f0f0);
  color: var(--tg-theme-text-color, #222);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

.btn.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* ---------- Channel item (legacy) ---------- */

.channel-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--tg-theme-bg-color, #fff);
  font-size: 14px;
}

.channel-item:last-child {
  border-bottom: none;
}

.channel-name {
  color: var(--tg-theme-link-color, #3390ec);
}

.btn-remove {
  background: none;
  border: none;
  color: var(--tg-theme-destructive-text-color, #e53935);
  font-size: 18px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background 0.15s;
  flex-shrink: 0;
}

.btn-remove:hover {
  background: rgba(229, 57, 53, 0.1);
}

.channel-count {
  font-size: 12px;
  color: var(--tg-theme-hint-color, #999);
  margin-left: 8px;
}

/* ---------- Category list item (categories/countries tab) ---------- */

.cat-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--tg-theme-secondary-bg-color, #f5f5f5);
  border-radius: 12px;
  margin-bottom: 8px;
}

.cat-list-item .cat-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cat-list-item .cat-key {
  font-size: 12px;
  color: var(--tg-theme-hint-color, #999);
}

.cat-list-item .cat-display-name {
  font-size: 15px;
  font-weight: 500;
}

.cat-actions {
  display: flex;
  gap: 8px;
}

.btn-icon {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: background 0.15s;
}

.btn-icon:hover {
  background: var(--tg-theme-secondary-bg-color, #eee);
}

/* ---------- Add forms ---------- */

.add-form {
  margin-top: 20px;
  padding: 16px;
  background: var(--tg-theme-secondary-bg-color, #f5f5f5);
  border-radius: 12px;
}

.add-form h3 {
  font-size: 15px;
  margin-bottom: 12px;
  font-weight: 600;
}

/* ---------- Form elements ---------- */

input[type="text"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--tg-theme-hint-color, #ccc);
  border-radius: 8px;
  font-size: 14px;
  background: var(--tg-theme-bg-color, #fff);
  color: var(--tg-theme-text-color, #222);
  margin-bottom: 8px;
  outline: none;
  transition: border-color 0.2s;
  font-family: inherit;
}

textarea {
  resize: vertical;
  min-height: 60px;
  line-height: 1.5;
  font-size: 13px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--tg-theme-button-color, #3390ec);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.15s;
}

.btn:active {
  opacity: 0.7;
}

.btn.primary {
  background: var(--tg-theme-button-color, #3390ec);
  color: var(--tg-theme-button-text-color, #fff);
  width: 100%;
}

.btn.full-width {
  width: 100%;
  margin-top: 16px;
}

/* ---------- Settings ---------- */

.settings-group {
  margin-bottom: 24px;
}

.settings-group h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 10px;
}

/* Radio cards */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.radio-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  background: var(--tg-theme-secondary-bg-color, #f5f5f5);
  border-radius: 10px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.2s;
}

.radio-card:has(input:checked) {
  border-color: var(--tg-theme-button-color, #3390ec);
}

.radio-card input[type="radio"] {
  margin-top: 3px;
  accent-color: var(--tg-theme-button-color, #3390ec);
}

.radio-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.radio-body strong {
  font-size: 14px;
}

.radio-body span {
  font-size: 12px;
  color: var(--tg-theme-hint-color, #999);
}

/* Toggle switch */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  background: var(--tg-theme-secondary-bg-color, #f5f5f5);
  border-radius: 10px;
  cursor: pointer;
  position: relative;
}

.toggle-row input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  width: 44px;
  height: 24px;
  background: var(--tg-theme-hint-color, #ccc);
  border-radius: 12px;
  position: relative;
  transition: background 0.2s;
  flex-shrink: 0;
}

.toggle-slider::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s;
}

.toggle-row input:checked + .toggle-slider {
  background: var(--tg-theme-button-color, #3390ec);
}

.toggle-row input:checked + .toggle-slider::after {
  transform: translateX(20px);
}

.hint {
  font-size: 12px;
  color: var(--tg-theme-hint-color, #999);
  margin-top: 8px;
  padding: 0 4px;
  line-height: 1.4;
}

/* Field row */
.field-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.field-row span {
  font-size: 14px;
  flex-shrink: 0;
}

.field-row input[type="number"] {
  width: 80px;
  text-align: center;
  margin-bottom: 0;
}

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--tg-theme-text-color, #222);
  color: var(--tg-theme-bg-color, #fff);
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 14px;
  opacity: 0;
  transition: transform 0.3s, opacity 0.3s;
  z-index: 200;
  pointer-events: none;
  max-width: 90%;
  text-align: center;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- Bulk add results ---------- */

.bulk-results {
  margin-top: 12px;
}

.bulk-section {
  margin-bottom: 10px;
}

.bulk-section strong {
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
}

.bulk-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  border-radius: 8px;
  margin-bottom: 4px;
  font-size: 13px;
  gap: 8px;
}

.bulk-result-item .source-url {
  flex: 1;
  min-width: 0;
}

.bulk-added {
  background: rgba(76, 175, 80, 0.1);
}

.bulk-skipped {
  background: rgba(255, 152, 0, 0.1);
}

.bulk-reason {
  font-size: 11px;
  color: var(--tg-theme-hint-color, #999);
  flex-shrink: 0;
}

/* ---------- Empty state ---------- */

.empty-state {
  text-align: center;
  padding: 24px;
  color: var(--tg-theme-hint-color, #999);
  font-size: 14px;
}