/* ════════════════════════════════════════════════
   Leaderboard
   ════════════════════════════════════════════════ */

/* Overlay */
.lb-overlay {
    position: fixed; inset: 0;
    z-index: 900;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.lb-modal {
    background: #0f0f23;
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 24px;
    width: 100%;
    max-width: 640px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 0;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.7);
    scrollbar-width: thin;
    scrollbar-color: rgba(139, 92, 246, 0.3) transparent;
}
.lb-enter { animation: lbSlideIn 0.3s ease; }
@keyframes lbSlideIn {
    from { transform: translateY(20px); opacity: 0; }
    to   { transform: translateY(0); opacity: 1; }
}

/* Header */
.lb-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    position: sticky;
    top: 0;
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(10px);
    z-index: 2;
}
.lb-title {
    font-size: 18px;
    font-weight: 800;
    color: #f1f5f9;
}
.lb-close {
    width: 32px; height: 32px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted, #64748b);
    cursor: pointer;
    font-size: 16px;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.15s;
}
.lb-close:hover { background: rgba(239, 68, 68, 0.15); color: #ef4444; }

/* Body */
.lb-body { padding: 0 20px 24px; }

/* Loading / Empty */
.lb-loading, .lb-empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted, #64748b);
    font-size: 14px;
}
.lb-spinner {
    display: inline-block;
    width: 14px; height: 14px;
    border: 2px solid rgba(139, 92, 246, 0.2);
    border-top-color: #a78bfa;
    border-radius: 50%;
    animation: lbSpin 0.6s linear infinite;
    vertical-align: middle;
    margin-right: 6px;
}
@keyframes lbSpin { to { transform: rotate(360deg); } }
.lb-empty-icon { font-size: 48px; margin-bottom: 12px; opacity: 0.5; }
.lb-empty-hint { font-size: 12px; color: #555; margin-top: 4px; }

/* ── Podium ── */
.lb-podium {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 12px;
    padding: 24px 0 20px;
}
.lb-podium-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    position: relative;
}
.lb-podium-medal { font-size: 28px; }
.lb-podium-avatar, .lb-podium-avatar-img {
    width: 48px; height: 48px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; font-weight: 700;
    color: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}
.lb-podium-avatar-img { object-fit: cover; }
.lb-rank-1 .lb-podium-avatar,
.lb-rank-1 .lb-podium-avatar-img {
    width: 56px; height: 56px;
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.4);
    border: 2px solid #f59e0b;
}
.lb-podium-name {
    font-size: 12px;
    font-weight: 600;
    color: #e2e8f0;
    max-width: 90px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
}
.lb-podium-score {
    font-size: 11px;
    color: #a78bfa;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
}
.lb-podium-bar {
    width: 70px;
    border-radius: 8px 8px 0 0;
    transition: height 0.5s ease;
}
.lb-rank-1 .lb-podium-bar {
    background: linear-gradient(180deg, rgba(245, 158, 11, 0.3), rgba(245, 158, 11, 0.08));
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-bottom: none;
}
.lb-rank-2 .lb-podium-bar {
    background: linear-gradient(180deg, rgba(148, 163, 184, 0.25), rgba(148, 163, 184, 0.06));
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-bottom: none;
}
.lb-rank-3 .lb-podium-bar {
    background: linear-gradient(180deg, rgba(180, 130, 80, 0.2), rgba(180, 130, 80, 0.05));
    border: 1px solid rgba(180, 130, 80, 0.2);
    border-bottom: none;
}
.lb-me .lb-podium-name { color: #a78bfa; }

/* ── Table ── */
.lb-table {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.06);
}
.lb-table-header {
    display: grid;
    grid-template-columns: 36px 1fr 36px 36px 36px 36px 60px;
    gap: 4px;
    align-items: center;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.04);
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted, #64748b);
    text-transform: uppercase;
}
.lb-th-rank { text-align: center; }
.lb-th-stat { text-align: center; font-size: 12px; }
.lb-th-score { text-align: right; }

.lb-row {
    display: grid;
    grid-template-columns: 36px 1fr 36px 36px 36px 36px 60px;
    gap: 4px;
    align-items: center;
    padding: 8px 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    transition: background 0.15s;
}
.lb-row:hover { background: rgba(255, 255, 255, 0.03); }
.lb-row-me {
    background: rgba(139, 92, 246, 0.08) !important;
    border-left: 3px solid #8b5cf6;
}
.lb-row-top { font-weight: 600; }

.lb-rank {
    text-align: center;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary, #94a3b8);
}
.lb-user {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}
.lb-row-avatar, .lb-row-avatar-img {
    width: 26px; height: 26px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 10px; font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}
.lb-row-avatar-img { object-fit: cover; }
.lb-name {
    font-size: 12px;
    color: #e2e8f0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.lb-you {
    font-size: 10px;
    color: #a78bfa;
    font-weight: 400;
}
.lb-stat {
    text-align: center;
    font-size: 12px;
    color: var(--text-secondary, #94a3b8);
    font-family: 'JetBrains Mono', monospace;
}
.lb-score {
    text-align: right;
    font-size: 12px;
    font-weight: 700;
    color: #a78bfa;
    font-family: 'JetBrains Mono', monospace;
}

/* Legend */
.lb-legend {
    text-align: center;
    font-size: 10px;
    color: #555;
    margin-top: 12px;
    letter-spacing: 0.3px;
}

/* ═══ LIGHT MODE ═══ */
html.light-mode .lb-modal {
    background: #f8f9ff;
    border-color: rgba(109, 40, 217, 0.12);
}
html.light-mode .lb-header {
    background: rgba(248, 249, 255, 0.95);
    border-bottom-color: rgba(0, 0, 0, 0.06);
}
html.light-mode .lb-title { color: #1e1b4b; }
html.light-mode .lb-close {
    background: rgba(0, 0, 0, 0.04);
    border-color: rgba(0, 0, 0, 0.08);
    color: #6b7280;
}
html.light-mode .lb-podium-name { color: #1e1b4b; }
html.light-mode .lb-table { border-color: rgba(0, 0, 0, 0.06); }
html.light-mode .lb-table-header { background: rgba(0, 0, 0, 0.03); }
html.light-mode .lb-row { border-top-color: rgba(0, 0, 0, 0.04); }
html.light-mode .lb-row:hover { background: rgba(0, 0, 0, 0.02); }
html.light-mode .lb-row-me { background: rgba(109, 40, 217, 0.06) !important; border-left-color: #7c3aed; }
html.light-mode .lb-name { color: #1e1b4b; }
html.light-mode .lb-score { color: #7c3aed; }
html.light-mode .lb-podium-score { color: #7c3aed; }

/* Responsive */
@media (max-width: 520px) {
    .lb-modal { max-width: 100%; border-radius: 16px; }
    .lb-row, .lb-table-header {
        grid-template-columns: 30px 1fr 30px 30px 30px 30px 50px;
        font-size: 11px;
    }
    .lb-podium { gap: 8px; }
    .lb-podium-bar { width: 55px; }
}