/* ─── Floating-кнопка избранного ─────────────────────────────── */
.fav-btn-toggle {
    position: fixed;
    right: 24px;
    top: 120px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: var(--bg-2);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    transition: all 0.2s ease;
    padding: 0;
}
.fav-btn-toggle:hover {
    border-color: var(--accent);
    background: var(--bg-3);
    transform: scale(1.05);
}
.fav-btn-toggle:hover .fav-star-icon {
    fill: var(--accent);
}
.fav-btn-toggle.active {
    background: linear-gradient(135deg, #ffd700 0%, #ffa500 100%);
    border-color: #ffd700;
}
.fav-btn-toggle.active:hover {
    transform: scale(1.1) rotate(15deg);
}
.fav-btn-toggle.active .fav-star-icon {
    fill: #0d1117;
}

.fav-star-icon {
    width: 28px;
    height: 28px;
    fill: var(--text-muted);
    transition: fill 0.2s ease;
    pointer-events: none;
}

@keyframes starFill {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.3) rotate(15deg); }
    100% { transform: scale(1) rotate(0deg); }
}
.fav-btn-toggle.animate {
    animation: starFill 0.5s ease;
}

/* ─── Tooltip для неавторизованных ──────────────────────────── */
.fav-tooltip {
    position: fixed;
    right: 90px;
    top: 136px;
    background: var(--bg-overlay, #21262d);
    border: 1px solid var(--accent);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 13px;
    color: var(--text);
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    white-space: nowrap;
    z-index: 51;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}
.fav-tooltip.visible {
    opacity: 1;
    pointer-events: auto;
}
.fav-tooltip::after {
    content: '';
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-left: 8px solid var(--accent);
}
.fav-tooltip a {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 500;
    cursor: pointer;
}

/* ─── Кнопка открытия панели (список избранного) ─────────────── */
.fav-btn-open {
    position: fixed;
    right: 24px;
    top: 190px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: #21262d;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 50;
    transition: all 0.2s ease;
    padding: 0;
}
.fav-btn-open.has-favorites {
    display: flex;
}
.fav-btn-open:hover {
    border-color: var(--accent);
}
.fav-btn-open .fav-star-icon {
    fill: #ffd700;
}

.fav-count-badge {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent);
    border: 2px solid var(--bg);
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

/* ─── Overlay ─────────────────────────────────────────────────── */
.fav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.fav-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

/* ─── Боковая панель ─────────────────────────────────────────── */
.fav-panel {
    position: fixed;
    top: 0;
    right: -400px;
    width: 380px;
    height: 100vh;
    background: var(--bg-2);
    border-left: 1px solid var(--border);
    box-shadow: -4px 0 24px rgba(0,0,0,0.5);
    z-index: 1000;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
}
.fav-panel.open {
    right: 0;
}

.fav-panel-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}
.fav-panel-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}
.fav-panel-count {
    background: var(--accent);
    color: #0d1117;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 700;
}
.fav-panel-close {
    font-size: 24px;
    color: var(--text-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color 0.15s;
}
.fav-panel-close:hover {
    color: var(--text);
}

.fav-list {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}
.fav-list::-webkit-scrollbar { width: 6px; }
.fav-list::-webkit-scrollbar-track { background: transparent; }
.fav-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
.fav-list::-webkit-scrollbar-thumb:hover { background: #6e7681; }

/* ─── Карточка предмета в панели ─────────────────────────────── */
.fav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    margin-bottom: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}
.fav-item:hover {
    background: var(--bg-3);
    border-color: var(--accent);
}
.fav-item-icon {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    background: linear-gradient(135deg, var(--bg-3) 0%, var(--border) 100%);
    border: 1px solid var(--border);
    flex-shrink: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.fav-item-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.fav-item-info {
    flex: 1;
    min-width: 0;
}
.fav-item-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.fav-item-meta {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 3px;
}
.fav-remove-btn {
    font-size: 18px;
    color: var(--text-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
    flex-shrink: 0;
    line-height: 1;
    transition: color 0.15s;
}
.fav-remove-btn:hover {
    color: var(--danger);
}

/* ─── Пустое состояние ────────────────────────────────────────── */
.fav-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}
.fav-empty svg {
    margin-bottom: 16px;
}
.fav-empty-title {
    font-size: 14px;
    margin-bottom: 6px;
}
.fav-empty-sub {
    font-size: 12px;
    color: #6e7681;
}

/* ─── Адаптация под светлую beta-тему ────────────────────────── */
[data-theme="beta"] .fav-btn-toggle {
    background: #ffffff;
    border-color: #d0d7de;
}
[data-theme="beta"] .fav-btn-toggle:hover {
    border-color: #0969da;
    background: #f6f8fa;
}
[data-theme="beta"] .fav-btn-open {
    background: #f6f8fa;
    border-color: #d0d7de;
}
[data-theme="beta"] .fav-panel {
    background: #ffffff;
    border-color: #d0d7de;
    box-shadow: -4px 0 24px rgba(0,0,0,0.12);
}
[data-theme="beta"] .fav-item {
    background: #f6f8fa;
    border-color: #d0d7de;
}
[data-theme="beta"] .fav-item:hover {
    background: #f0f4ff;
    border-color: #0969da;
}
[data-theme="beta"] .fav-tooltip {
    background: #ffffff;
    border-color: #0969da;
}
[data-theme="beta"] .fav-tooltip::after {
    border-left-color: #0969da;
}