/* page-shell: header, filters, stations, player (from index.html) */
/* Основной контейнер */
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
  }

  /* Заголовок */
  .header {
    background: var(--color-surface);
    padding: 20px 0;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-small);
  }

  .header h1 {
    margin: 0;
    font-size: clamp(1.5rem, 5vw, 2.5rem);
    font-weight: var(--font-weight-boldest);
    color: var(--color-brand-accent);
    text-shadow: var(--text-shadow-header-title);
  }

  .header p {
    margin: 10px 0 0 0;
    font-size: clamp(0.9rem, 3vw, 1.1rem);
    color: var(--color-text-secondary);
  }

  /* Фильтры */
  .filters {
    background: var(--color-surface);
    padding: 20px 0;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 80px;
    z-index: 99;
  }

  .filters-container {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
    justify-content: center;
  }

  .filter-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
  }

  .filter-group label {
    font-size: clamp(0.8rem, 2.5vw, 1rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
  }

  .filter-group select {
    padding: 8px 12px;
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius-button);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: clamp(0.8rem, 2.5vw, 1rem);
    min-width: 120px;
    transition: var(--transition-normal);
  }

  .filter-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-focus-ring);
  }

  /* Табы и строка с кнопками-пиктограммами */
  .tabs-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
  }

  .tabs {
    display: flex;
    gap: 10px;
  }

  .tab-btn {
    padding: var(--button-padding-sm);
    border: 2px solid var(--color-primary);
    background: transparent;
    color: var(--color-primary);
    border-radius: var(--border-radius-button);
    font-size: var(--font-size-button-sm);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: var(--transition-normal);
    min-width: var(--button-min-width-sm);
    height: var(--button-height);
  }

  .tab-btn:hover {
    background: var(--color-primary);
    color: var(--color-text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
  }

  .tab-btn.active {
    background: var(--color-primary);
    color: var(--color-text-light);
    box-shadow: var(--shadow-medium);
  }

  .header-icon {
    width: var(--header-icon-size);
    height: var(--header-icon-size);
    margin-right: var(--header-icon-margin);
    vertical-align: middle;
    display: inline-block;
    flex-shrink: 0;
  }

  .header-icon-btns {
    display: flex;
    gap: 10px;
    align-items: center;
  }

  .icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--button-padding-sm);
    border: 2px solid var(--color-primary);
    background: transparent;
    color: var(--color-primary);
    border-radius: var(--border-radius-button);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition-normal);
    width: var(--button-height);
    min-width: var(--button-height);
    height: var(--button-height);
    text-decoration: none;
    box-sizing: border-box;
  }

  .icon-btn:hover {
    background: var(--color-primary);
    color: var(--color-text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
  }

  .icon-btn:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-focus-ring);
  }

  .icon-btn .shazam-icon {
    width: 24px;
    height: 24px;
    object-fit: contain;
    display: block;
  }

  #theme-notification,
  #shazam-notification {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 12px 20px;
    border-radius: var(--border-radius);
    background: var(--color-background);
    color: var(--color-text);
    box-shadow: var(--shadow-large);
    z-index: 10000;
    font-size: 0.9rem;
    font-weight: 600;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  }

  #theme-notification.show,
  #shazam-notification.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  /* Список станций */
  .stations-container {
    flex: 1;
    padding: 20px 0;
  }

  .station-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .station-row {
    display: flex;
    align-items: center;
    padding: 15px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: var(--transition-normal);
    cursor: pointer;
    position: relative;
  }

  .station-row:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    border-color: var(--color-primary);
  }

  .station-row.active {
    background: var(--color-station-bg-active);
    color: var(--color-station-text-active);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-small);
  }

  .station-logo {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
    border: 2px solid var(--color-border);
    transition: var(--transition-normal);
  }

  .station-row.active .station-logo {
    border-color: var(--color-primary);
  }

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

  .station-name {
    font-size: clamp(1rem, 3vw, 1.2rem);
    font-weight: var(--font-weight-bold);
    margin: 0 0 5px 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .station-details {
    font-size: clamp(0.8rem, 2.5vw, 0.9rem);
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .station-row.active .station-details {
    color: var(--color-text-secondary);
  }

  .station-country {
    color: var(--color-text-secondary);
  }

  .station-actions {
    display: flex;
    gap: 10px;
    align-items: center;
  }

  .play-btn, .fav-btn {
    padding: var(--button-padding-xs);
    border: 2px solid var(--color-primary);
    background: transparent;
    color: var(--color-primary);
    border-radius: var(--border-radius-button);
    font-size: var(--font-size-button-xs);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: var(--transition-normal);
    min-width: var(--button-min-width-xs);
    height: 35px;
  }

  .play-btn:hover, .fav-btn:hover {
    background: var(--color-primary);
    color: var(--color-text-light);
    transform: scale(1.05);
  }

  .play-btn.playing {
    background: var(--color-success);
    border-color: var(--color-success);
    color: var(--color-text-light);
  }

  .fav-btn.favorited {
    background: var(--color-favorite);
    border-color: var(--color-favorite);
    color: var(--color-on-primary);
  }

  /* Плеер */
  .fixed-player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-player-bg);
    color: var(--color-player-text);
    padding: 20px;
    border-top: 1px solid var(--color-border);
    border-radius: var(--player-bar-top-radius) var(--player-bar-top-radius) 0 0;
    box-shadow: var(--shadow-player);
    z-index: 1000;
    transform: translateY(100%);
    transition: transform 0.3s ease;
  }

  .fixed-player.visible {
    transform: translateY(0);
  }

  .player-content {
    display: flex;
    align-items: center;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
  }

  .player-logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-player-control);
  }

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

  .player-title {
    font-size: clamp(1.1rem, 3vw, 1.3rem);
    font-weight: var(--font-weight-bold);
    margin: 0 0 5px 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .player-metadata {
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    opacity: 0.8;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .player-controls {
    display: flex;
    gap: 15px;
    align-items: center;
  }

  .control-btn {
    padding: 12px;
    border: 2px solid var(--color-player-control);
    background: transparent;
    color: var(--color-player-control);
    border-radius: 50%;
    font-size: var(--player-control-icon-size);
    line-height: 1;
    cursor: pointer;
    transition: var(--transition-normal);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .control-btn:hover {
    background: var(--color-player-control);
    color: var(--color-on-primary);
    transform: scale(1.1);
  }

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

  /* Загрузка */
  .loading-spinner {
    display: none;
    justify-content: center;
    align-items: center;
    padding: 40px;
  }

  .spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-border);
    border-top: 4px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
  }

  @keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
  }


  /* Счетчик станций */
  .station-count {
    text-align: center;
    padding: 10px 0;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    color: var(--color-text);
    opacity: 0.8;
  }

  /* Кнопка "Наверх" - bottom/left задаются в JS (updateScrollUpPosition) */
  .btn-scroll-up {
    position: fixed;
    width: 50px;
    height: 50px;
    background: #367cff;
    color: #ffffff;
    border: none;
    border-radius: 50%;
    font-size: 24px;
    font-weight: 900;
    font-family: Arial, sans-serif;
    font-stretch: ultra-condensed;
    text-shadow: 
      0 0 2px rgba(0, 0, 0, 0.5),
      0 0 4px rgba(0, 0, 0, 0.3),
      1px 1px 0 rgba(0, 0, 0, 0.4);
    cursor: pointer;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    outline: none;
    letter-spacing: -1px;
    line-height: 1;
    text-align: center;
    vertical-align: middle;
  }

  .btn-scroll-up:hover {
    background: var(--color-primary-dark);
    transform: translateY(0) scale(1.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  }

  .btn-scroll-up:active {
    transform: translateY(0) scale(0.95);
  }

  .btn-scroll-up.visible {
    display: block;
    opacity: 1;
    transform: translateY(0);
  }

  /* Утолщение треугольной стрелки */
  .btn-scroll-up {
    font-size: 26px;
    font-weight: 900;
    font-family: Arial, sans-serif;
    text-shadow: none;
    filter: contrast(1.2) brightness(1.1);
    transform: scale(1.1);
  }




  /* Уведомления */
  .notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--color-success);
    color: var(--color-text-light);
    padding: 15px 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-large);
    z-index: 1001;
    display: none;
    transition: var(--transition-normal);
  }

  .notification.visible {
    display: block;
  }

  .notification.error {
    background: var(--color-error);
  }

  .notification.warning {
    background: var(--color-warning);
  }

  /* Подтверждение */
  .confirm-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1002;
  }

  .confirm-dialog {
    background: var(--color-surface);
    padding: 30px;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-large);
    text-align: center;
    max-width: 400px;
    margin: 20px;
  }

  .confirm-dialog h3 {
    margin: 0 0 20px 0;
    font-size: 1.3rem;
    color: var(--color-text);
  }

  .confirm-dialog p {
    margin: 0 0 30px 0;
    color: var(--color-text);
    line-height: 1.5;
  }

  .confirm-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
  }

  .confirm-btn {
    padding: var(--button-padding-sm);
    border: 2px solid var(--color-primary);
    background: transparent;
    color: var(--color-primary);
    border-radius: var(--border-radius-button);
    font-size: var(--font-size-button-sm);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: var(--transition-normal);
    min-width: var(--button-min-width-sm);
    height: var(--button-height);
  }

  .confirm-btn:hover {
    background: var(--color-primary);
    color: var(--color-text-light);
  }

  .confirm-btn.danger {
    border-color: var(--color-error);
    color: var(--color-error);
  }

  .confirm-btn.danger:hover {
    background: var(--color-error);
    color: var(--color-text-light);
  }

  /* Офлайн сообщение */
  .no-internet-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1003;
  }

  .no-internet-message {
    background: var(--color-surface);
    padding: 40px;
    border-radius: var(--border-radius-large);
    text-align: center;
    max-width: 500px;
    margin: 20px;
  }

  .no-internet-message h2 {
    margin: 0 0 20px 0;
    color: var(--color-error);
    font-size: 1.5rem;
  }

  .no-internet-message p {
    margin: 0 0 30px 0;
    color: var(--color-text);
    line-height: 1.5;
  }

  .retry-btn {
    padding: var(--button-padding);
    border: 2px solid var(--color-primary);
    background: var(--color-primary);
    color: var(--color-text-light);
    border-radius: var(--border-radius-button);
    font-size: var(--font-size-button);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: var(--transition-normal);
    min-width: var(--button-min-width);
    height: var(--button-height);
  }

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

  /* Адаптивность */
  @media (max-width: 768px) {
    .container {
      padding: 0 15px;
    }

    .filters-container {
      flex-direction: column;
      gap: 10px;
    }

    .filter-group {
      width: 100%;
    }

    .filter-group select {
      width: 100%;
    }

    .station-row {
      padding: 12px;
    }

    .station-logo {
      width: 40px;
      height: 40px;
      margin-right: 12px;
    }
  }

  @media (max-width: 480px) {
    .header {
      padding: 15px 0;
    }

    .filters {
      padding: 15px 0;
    }

    .stations-container {
      padding: 15px 0;
    }

    .station-row {
      padding: 10px;
    }

    .station-actions {
      flex-direction: column;
      gap: 5px;
    }

    .play-btn, .fav-btn {
      width: 100%;
      min-width: auto;
    }
  }

  /* Темная тема по системной настройке — только если тема не задана явно (управляется из js/ui-manager.js) */

  /* Анимации */
  .fade-in {
    animation: fadeIn 0.3s ease-in;
  }

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

  .slide-up {
    animation: slideUp 0.3s ease-out;
  }

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

  /* Landing pages: reserve space for in-content ads (CLS) */
  .ad-in-content,
  .ad-in-content .ad-placeholder {
    min-height: 250px;
  }

  .ad-in-content .ad-placeholder:empty::before {
    content: '';
    display: block;
    min-height: inherit;
    background: var(--color-background-light, #f0f0f0);
  }

  /* Static SEO block (outside dynamic main) */
  section.seo-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px 32px;
  }

  .site-footer {
    text-align: center;
    padding: 16px 20px 32px;
    font-size: 0.875rem;
    border-top: 1px solid var(--color-border, #e0e0e0);
  }

  .site-footer a {
    color: var(--color-primary, #367cff);
    text-decoration: none;
  }

  .site-footer a:hover {
    text-decoration: underline;
  }