/* ContextualRecommendationsWidget.razor.css
   Uses Nexus Design System tokens (--nexus-*) for consistency.
*/

.recommendations-panel {
    width: 100%;
    padding: 1.75rem;
    background: var(--nexus-surface, #1a1a1e);
    border: 1px solid var(--nexus-border, rgba(255, 255, 255, 0.05));
    border-radius: 12px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.recommendations-panel:hover {
    border-color: rgba(16, 185, 129, 0.2);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

/* ── Panel Header ── */
.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--nexus-accent, #10b981);
}

.header-left h4 {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--nexus-text-primary, #ffffff);
    letter-spacing: 0.02em;
}

.panel-badge {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 0.2rem 0.55rem;
    border-radius: 100px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(59, 130, 246, 0.1));
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--nexus-accent, #10b981);
    text-transform: uppercase;
}

/* ── Loading State ── */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 2rem 1rem;
}

.spinner-ring {
    position: relative;
    width: 40px;
    height: 40px;
}

.spinner-track {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.05);
}

.spinner-head {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: var(--nexus-accent, #10b981);
    animation: nexus-spin 0.8s linear infinite;
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.4);
}

@keyframes nexus-spin {
    to { transform: rotate(360deg); }
}

.loading-label {
    font-size: 0.82rem;
    color: var(--nexus-text-secondary, #a1a1aa);
    font-style: italic;
}

/* ── Empty / Error State ── */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem;
    text-align: center;
    color: var(--nexus-text-secondary, #a1a1aa);
    opacity: 0.65;
}

.empty-state p {
    margin: 0;
    font-size: 0.875rem;
}

/* ── Recommendations List ── */
.recommendations-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.recommendation-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 1rem 1.1rem;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
    cursor: default;
}

.recommendation-item:hover {
    background: rgba(255, 255, 255, 0.04);
    transform: translateX(2px);
}

.recommendation-item.premium {
    border-color: rgba(245, 158, 11, 0.2);
}

.recommendation-item.premium:hover {
    border-color: rgba(245, 158, 11, 0.4);
    background: rgba(245, 158, 11, 0.04);
}

.recommendation-item.owned {
    border-color: rgba(16, 185, 129, 0.1);
}

.recommendation-item.owned:hover {
    border-color: rgba(16, 185, 129, 0.25);
}

/* ── Rec Content ── */
.rec-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.rec-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.15rem;
}

.match-badge {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--nexus-accent, #10b981);
    background: rgba(16, 185, 129, 0.1);
    border-radius: 4px;
    padding: 0.1rem 0.45rem;
}

.match-unit {
    font-size: 0.65rem;
    font-weight: 500;
}

.upsell-tag {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: #f59e0b;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 4px;
    padding: 0.1rem 0.45rem;
    text-transform: uppercase;
}

.rec-book-title {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--nexus-text-primary, #ffffff);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rec-chapter-title {
    margin: 0;
    font-size: 0.78rem;
    color: var(--nexus-text-secondary, #a1a1aa);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ── Action Button ── */
.rec-action-btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: transparent;
    color: var(--nexus-text-secondary, #a1a1aa);
    cursor: pointer;
    transition: all 0.2s ease;
}

.rec-action-btn:hover {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--nexus-accent, #10b981);
    transform: scale(1.1);
}

.premium .rec-action-btn:hover {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
    color: #f59e0b;
}

@media (max-width: 768px) {
    .recommendations-panel {
        padding: 1.25rem;
    }
}

/* ============================================================
   LIGHT THEME OVERRIDES — "Warm Paper / Soft Sepia"
   ============================================================ */

.theme-light .recommendations-panel {
    background: var(--bg-surface);
    border: 1px solid var(--border);
}

.theme-light .recommendations-panel:hover {
    box-shadow: 0 8px 24px rgba(139, 130, 115, 0.12);
}

.theme-light .header-left h4 {
    color: var(--text-main);
}

.theme-light .spinner-track {
    border: 3px solid rgba(0, 0, 0, 0.05);
}

.theme-light .loading-label,
.theme-light .empty-state {
    color: var(--text-muted);
}

.theme-light .recommendation-item {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.theme-light .recommendation-item:hover {
    background: rgba(0, 0, 0, 0.04);
}

.theme-light .recommendation-item.premium {
    border-color: rgba(245, 158, 11, 0.2);
}

.theme-light .recommendation-item.premium:hover {
    border-color: rgba(245, 158, 11, 0.4);
    background: rgba(245, 158, 11, 0.04);
}

.theme-light .recommendation-item.owned {
    border-color: rgba(16, 185, 129, 0.1);
}

.theme-light .recommendation-item.owned:hover {
    border-color: rgba(16, 185, 129, 0.25);
}

.theme-light .rec-book-title {
    color: var(--text-main);
}

.theme-light .rec-chapter-title {
    color: var(--text-muted);
}

.theme-light .rec-action-btn {
    border: 1px solid rgba(0, 0, 0, 0.08);
    color: var(--text-muted);
}

.theme-light .rec-action-btn:hover {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--accent);
}

.theme-light .premium .rec-action-btn:hover {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
    color: #f59e0b;
}
