/* ═══════════════════════════════════════════════════════════════════════════
   reports.css  —  Module 16: Reports & Usage Stats
   Design system: matches dashboard.css dark sidebar theme.
   All class names are scoped with the `.reports-` prefix to avoid collisions.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Period selector bar ─────────────────────────────────────────────────── */

.reports-filter-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.reports-period-group {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background: var(--surface-1, #1e2127);
    border: 1px solid var(--border, #2e3340);
    border-radius: 8px;
    padding: 3px;
}

.reports-period-btn {
    padding: 0.35rem 0.85rem;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary, #8b93a5);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
}

.reports-period-btn:hover {
    background: var(--surface-2, #252932);
    color: var(--text-primary, #e2e8f0);
}

.reports-period-btn.active {
    background: var(--accent, #4f6ef7);
    color: #fff;
    font-weight: 600;
}

.reports-export-btn {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 1rem;
    border-radius: 8px;
    font-size: 0.8rem;
}

/* ── Summary stat cards ──────────────────────────────────────────────────── */

.reports-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.reports-stat-card {
    background: var(--surface-1, #1e2127);
    border: 1px solid var(--border, #2e3340);
    border-radius: 10px;
    padding: 1.1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    transition: border-color 0.15s;
}

.reports-stat-card:hover {
    border-color: var(--accent, #4f6ef7);
}

.reports-stat-label {
    font-size: 0.72rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary, #8b93a5);
}

.reports-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary, #e2e8f0);
    line-height: 1;
}

.reports-stat-sub {
    font-size: 0.75rem;
    color: var(--text-secondary, #8b93a5);
}

/* Trend badge (+12% / -5%) */
.reports-trend {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.15rem 0.45rem;
    border-radius: 20px;
    margin-top: 0.2rem;
    width: fit-content;
}

.reports-trend--up {
    background: rgba(34, 197, 94, 0.12);
    color: #22c55e;
}

.reports-trend--down {
    background: rgba(239, 68, 68, 0.12);
    color: #ef4444;
}

.reports-trend--neutral {
    background: rgba(139, 147, 165, 0.12);
    color: var(--text-secondary, #8b93a5);
}

/* ── Section card wrapper ─────────────────────────────────────────────────── */

.reports-section {
    background: var(--surface-1, #1e2127);
    border: 1px solid var(--border, #2e3340);
    border-radius: 10px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.25rem;
}

.reports-section-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary, #e2e8f0);
    margin: 0 0 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.reports-section-title .material-symbols-outlined {
    font-size: 1.1rem;
    color: var(--accent, #4f6ef7);
}

/* ── Daily bar chart ─────────────────────────────────────────────────────── */

.reports-chart-wrap {
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.reports-chart-svg {
    display: block;
    min-width: 100%;
}

/* SVG bar colours */
.reports-bar-success {
    fill: #4f6ef7;
}

.reports-bar-failed {
    fill: rgba(239, 68, 68, 0.75);
}

/* X-axis labels */
.reports-chart-label {
    font-size: 0.65rem;
    fill: var(--text-secondary, #8b93a5);
    text-anchor: middle;
    font-family: inherit;
}

/* Tooltip hover shim (CSS-only) */
.reports-bar-group:hover .reports-bar-success,
.reports-bar-group:hover .reports-bar-failed {
    opacity: 0.8;
}

/* ── Two-column grid under chart ─────────────────────────────────────────── */

.reports-lower-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

@media (max-width: 860px) {
    .reports-lower-grid {
        grid-template-columns: 1fr;
    }
}

/* ── Format breakdown (horizontal progress bars) ────────────────────────── */

.reports-breakdown-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.reports-breakdown-row {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.reports-breakdown-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.reports-breakdown-name {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-primary, #e2e8f0);
}

.reports-breakdown-count {
    font-size: 0.75rem;
    color: var(--text-secondary, #8b93a5);
}

.reports-breakdown-track {
    height: 6px;
    background: var(--surface-2, #252932);
    border-radius: 4px;
    overflow: hidden;
}

.reports-breakdown-fill {
    height: 100%;
    background: var(--accent, #4f6ef7);
    border-radius: 4px;
    transition: width 0.4s ease;
}

/* ── Top templates list ──────────────────────────────────────────────────── */

.reports-top-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.reports-top-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border, #2e3340);
}

.reports-top-row:last-child {
    border-bottom: none;
}

.reports-top-rank {
    width: 1.4rem;
    height: 1.4rem;
    border-radius: 50%;
    background: var(--surface-2, #252932);
    color: var(--text-secondary, #8b93a5);
    font-size: 0.7rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.reports-top-name {
    flex: 1;
    font-size: 0.82rem;
    color: var(--text-primary, #e2e8f0);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.reports-top-count {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent, #4f6ef7);
    flex-shrink: 0;
}

.reports-top-pct {
    font-size: 0.72rem;
    color: var(--text-secondary, #8b93a5);
    flex-shrink: 0;
    min-width: 2.5rem;
    text-align: right;
}

/* ── API vs UI split card ────────────────────────────────────────────────── */

.reports-split-row {
    display: flex;
    gap: 1rem;
}

.reports-split-item {
    flex: 1;
    padding: 0.9rem 1rem;
    background: var(--surface-2, #252932);
    border-radius: 8px;
    text-align: center;
}

.reports-split-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary, #e2e8f0);
}

.reports-split-label {
    font-size: 0.72rem;
    color: var(--text-secondary, #8b93a5);
    margin-top: 0.25rem;
}

.reports-split-pct {
    font-size: 0.75rem;
    color: var(--accent, #4f6ef7);
    font-weight: 500;
}

/* ── Loading / error / empty state ─────────────────────────────────────────── */

.reports-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 3rem;
    color: var(--text-secondary, #8b93a5);
    font-size: 0.9rem;
}

.reports-loading .material-symbols-outlined {
    font-size: 2rem;
    animation: reports-spin 1.2s linear infinite;
}

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

.reports-error-banner {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.35);
    border-radius: 8px;
    padding: 0.85rem 1.1rem;
    color: #ef4444;
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.reports-empty {
    text-align: center;
    padding: 2.5rem;
    color: var(--text-secondary, #8b93a5);
    font-size: 0.88rem;
}