:root {
    --primary-color: #ff4d4d;
    --primary-dark: #e60000;
    --dark-bg: #000000;
    --dark-surface: #1B1B1B;
    --dark-surface-hover: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-disabled: #777777;
    --divider-color: #333333;
    --overlay-color: rgba(0, 0, 0, 0.7);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

body {
    background-color: var(--dark-bg);
    color: var(--text-primary);
    min-height: 100vh;
}

.hidden {
    display: none !important;
}

/* Header Styles */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color:#000000;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 120px;
}

.app-logo {
    height: 30px;
    width: auto;
    object-fit: contain;
}

.app-title {
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    flex-grow: 1;
    padding: 0 1rem;
}

.header-actions {
    display: flex;
    gap: 1rem;
    min-width: 120px;
    justify-content: flex-end;
}

.header-action-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.header-action-btn:hover {
    background-color: var(--dark-surface-hover);
}

.back-button {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.back-button:hover {
    background-color: var(--dark-surface-hover);
}

/* Search Container */
.search-container {
    background-color: var(--dark-surface);
    padding: 1rem;
    border-bottom: 1px solid var(--divider-color);
}

.search-input-container {
    position: relative;
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.search-icon {
    position: absolute;
    left: 1rem;
    color: var(--text-secondary);
}

.search-input {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 3rem;
    background-color: var(--dark-bg);
    border: 1px solid var(--divider-color);
    border-radius: 30px;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

.search-input:focus {
    border-color: var(--primary-color);
}

.clear-search-btn {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
}

.sort-options {
    display: flex;
    justify-content: flex-end;
}

.sort-select {
    padding: 0.5rem 1rem;
    background-color: var(--dark-bg);
    border: 1px solid var(--divider-color);
    border-radius: 20px;
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    cursor: pointer;
}

/* Favorites List - List View Style */
.favorites-container {
    padding: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.favorites-items {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.favorite-item {
    display: flex;
    align-items: center;
    background-color: var(--dark-surface);
    border-radius: 8px;
    padding: 0.75rem;
    transition: background-color 0.2s;
    cursor: pointer;
}

.favorite-item:hover {
    background-color: var(--dark-surface-hover);
}

.favorite-item.selected {
    outline: 2px solid var(--primary-color);
}

.favorite-item-thumbnail {
    width: 60px;
    height: 60px;
    min-width: 60px;
    border-radius: 4px;
    overflow: hidden;
    margin-right: 1rem;
}

.favorite-item-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.favorite-item-info {
    flex-grow: 1;
    min-width: 0;
    overflow: hidden;
}

.favorite-item-title {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.favorite-item-channel {
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.favorite-item-actions {
    margin-left: 1rem;
    display: flex;
    gap: 0.5rem;
}

.favorite-item-checkbox {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-primary);
    border-radius: 4px;
    background-color: transparent;
    cursor: pointer;
    transition: background-color 0.2s;
    flex-shrink: 0;
}

.favorite-item-checkbox:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.favorite-item-checkbox:checked::after {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: white;
    font-size: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.remove-favorite-btn {
    background-color: transparent;
    border: none;
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s;
    flex-shrink: 0;
}

.remove-favorite-btn:hover {
    background-color: rgba(255, 77, 77, 0.2);
    color: var(--primary-color);
}

/* Disable multi-select in search results */
.search-container.active ~ .favorites-container .favorite-item-checkbox {
    display: none !important;
}

.search-container.active ~ .favorites-container .favorite-item.selected {
    outline: none;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    text-align: center;
}

.empty-state i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.empty-state p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.empty-state .btn {
    padding: 0.8rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.empty-state .btn:hover {
    background-color: var(--primary-dark);
}

/* Loading State */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
}

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

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

/* Multi-select Bar */
.multi-select-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--dark-surface);
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
    z-index: 100;
}

.remove-btn {
    padding: 0.7rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.2s;
}

.remove-btn:hover {
    background-color: var(--primary-dark);
}

.remove-btn:disabled {
    background-color: var(--text-disabled);
    cursor: not-allowed;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--overlay-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--dark-surface);
    border-radius: 12px;
    width: 90%;
    max-width: 400px;
    overflow: hidden;
    animation: modalFadeIn 0.3s ease-out;
}

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

.modal-header {
    padding: 1.5rem 1.5rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    line-height: 1;
}

.modal-body {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--divider-color);
}

.modal-btn {
    padding: 0.7rem 1.5rem;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

.cancel-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.confirm-btn {
    background-color: var(--primary-color);
    border: none;
    color: white;
}

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



/* ===== Scroll to Top Button ===== */
.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: #ff0000;
  color: white;
  border: none;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.scroll-to-top.visible {
  display: flex;
  opacity: 1;
}

.scroll-to-top:hover {
  background-color: #cc0000;
  transform: translateY(-3px);
}