:root {
    --bg: #f0f2f5;
    --card-bg: #ffffff;
    --text: #1e1e2d;
    --text-muted: #6b7280;
    --border: #d8dce6;
    --green: #22c55e;
    --green-bg: #dcfce7;
    --red: #ef4444;
    --red-bg: #fee2e2;
    --orange: #d97706;
    --orange-bg: #fef3c7;
    --yellow: #eab308;
    --yellow-bg: #fef9c3;
    --blue: #4f46e5;
    --blue-bg: #eef2ff;
    --header-bg: #ffffff;
    --header-text: #1e1e2d;
    --indigo: #4f46e5;
    --indigo-light: #eef2ff;
    --purple: #7c3aed;
    --purple-light: #f3f0ff;
    --radius: 14px;
    --radius-sm: 10px;
    --shadow: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.02);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

/* ── Header ─────────────────────────────────────────────────────────── */
.header {
    background: var(--header-bg);
    color: var(--header-text);
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
    gap: 16px;
}

.logo-link { color: var(--indigo); text-decoration: none; }
.header h1 { font-size: 1.15rem; font-weight: 800; letter-spacing: -0.02em; color: var(--indigo); }

.nav-links {
    display: flex;
    gap: 3px;
    background: var(--bg);
    padding: 4px;
    border-radius: var(--radius-sm);
}
.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    padding: 7px 16px;
    border-radius: 8px;
    font-size: 0.84rem;
    font-weight: 500;
    transition: all 0.15s;
}
.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.6); }
.nav-link.active {
    color: #fff;
    background: var(--indigo);
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(79,70,229,0.3);
}

.header-meta {
    font-size: 0.82rem;
    color: var(--indigo);
    font-weight: 500;
    padding: 8px 32px;
    background: var(--indigo-light);
    border-bottom: 1px solid #e0e3ff;
}

/* ── Pages ────────────────────────────────────────────────────────── */
.page { display: block; }
.page.hidden { display: none !important; }

/* ── Search & Filters ─────────────────────────────────────────────── */
.search-filters {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 18px 32px;
}

.search-row { margin-bottom: 14px; }

.search-input {
    width: 100%;
    max-width: 480px;
    padding: 10px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s;
}
.search-input:focus { border-color: var(--indigo); }

.dropdown-row {
    display: flex;
    gap: 16px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.dropdown-group { display: flex; flex-direction: column; gap: 4px; }
.dropdown-group label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.dropdown {
    padding: 8px 14px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 0.85rem;
    font-family: inherit;
    background: var(--card-bg);
    color: var(--text);
    cursor: pointer;
    min-width: 180px;
}
.dropdown:focus { border-color: var(--indigo); outline: none; }

.results-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    padding: 8px 0;
    margin-left: auto;
    font-weight: 500;
}

/* ── Deep Dive button ─────────────────────────────────────────────── */
.deep-dive-btn {
    background: var(--indigo);
    color: #fff;
    border: none;
    border-radius: 10px;
    padding: 9px 20px;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s, box-shadow 0.15s;
    white-space: nowrap;
}
.deep-dive-btn:hover {
    background: #4338ca;
    box-shadow: 0 2px 12px rgba(79,70,229,0.3);
}
.deep-dive-btn .dd-count {
    background: rgba(255,255,255,0.25);
    padding: 1px 7px;
    border-radius: 10px;
    margin-left: 6px;
    font-size: 0.78rem;
}

/* ── Deep Dive panel ──────────────────────────────────────────────── */
.deep-dive-panel {
    background: var(--card-bg);
    border-bottom: 2px solid var(--indigo);
    padding: 20px 32px;
    max-height: 70vh;
    overflow-y: auto;
}
.deep-dive-panel.hidden { display: none !important; }

.dd-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.dd-panel-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--indigo);
}
.dd-panel-close {
    background: none;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 2px 8px;
    color: var(--text-muted);
    transition: all 0.15s;
}
.dd-panel-close:hover {
    background: var(--red-bg);
    color: var(--red);
    border-color: var(--red);
}

.dd-criteria-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.dd-tab {
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid var(--border);
    background: var(--card-bg);
    color: var(--text-muted);
    font-family: inherit;
    transition: all 0.15s;
}
.dd-tab:hover { border-color: var(--indigo); color: var(--indigo); }
.dd-tab.active { background: var(--indigo); color: #fff; border-color: var(--indigo); }

.dd-student-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.dd-student-item {
    background: var(--bg);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    transition: border-color 0.15s;
}
.dd-student-item:hover { border-color: var(--indigo); }
.dd-student-name { font-weight: 700; font-size: 0.9rem; }
.dd-student-meta { font-size: 0.78rem; color: var(--text-muted); margin-top: 3px; }
.dd-student-reasons { margin-top: 8px; display: flex; gap: 6px; flex-wrap: wrap; }
.dd-reason {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
}
.dd-reason.testing-loop { background: var(--red-bg); color: var(--red); }
.dd-reason.xp-behind { background: var(--orange-bg); color: var(--orange); }
.dd-reason.low-accuracy { background: var(--yellow-bg); color: #854d0e; }
.dd-reason.inactive { background: var(--purple-light); color: var(--purple); }

/* Deep Dive Analysis (Claude) */
.dd-analysis {
    margin-top: 10px;
    padding: 12px 14px;
    background: var(--indigo-light);
    border-left: 3px solid var(--indigo);
    border-radius: 6px;
    font-size: 0.82rem;
}
.dd-analysis h5 { margin: 0 0 6px; font-size: 0.82rem; color: var(--indigo); }
.dd-analysis-field { margin-bottom: 4px; line-height: 1.5; color: var(--text); }
.dd-analysis-label { font-weight: 700; color: var(--indigo); }
.dd-student-analysis {
    margin-top: 8px;
    padding: 10px 12px;
    background: var(--indigo-light);
    border-left: 3px solid var(--indigo);
    border-radius: 6px;
    font-size: 0.78rem;
}
.dd-analysis-grade { font-weight: 700; color: var(--indigo); margin-bottom: 4px; font-size: 0.8rem; }

/* ── Main content ─────────────────────────────────────────────────── */
.main { padding: 24px 32px; }

.loading {
    text-align: center;
    padding: 60px;
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* ── Campus sections ──────────────────────────────────────────────── */
.campus-section {
    background: var(--card-bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 16px;
    overflow: hidden;
    transition: border-color 0.2s;
}
.campus-section:hover { border-color: #b8bdd0; }

.campus-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 22px;
    cursor: pointer;
    user-select: none;
    transition: background 0.15s;
}
.campus-header:hover { background: #fafbfd; }

.campus-header-left { display: flex; align-items: center; gap: 14px; }

.campus-expand-icon {
    font-size: 0.6rem;
    color: var(--indigo);
    background: var(--indigo-light);
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: transform 0.2s;
}
.campus-section:not(.collapsed) .campus-expand-icon { transform: rotate(90deg); }

.campus-name { font-weight: 700; font-size: 1rem; letter-spacing: -0.01em; }
.campus-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    background: var(--bg);
    padding: 2px 10px;
    border-radius: 20px;
}

.campus-metrics { display: flex; gap: 8px; flex-wrap: wrap; }

.cm-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}
.cm-pill.green { background: var(--green-bg); color: #16a34a; }
.cm-pill.red { background: var(--red-bg); color: var(--red); }
.cm-pill.orange { background: var(--orange-bg); color: #b45309; }

.campus-body { padding: 0 22px 18px; }
.campus-section.collapsed .campus-body { display: none; }

/* ── Group headers ────────────────────────────────────────────────── */
.group-header {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--indigo);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin: 20px 0 10px;
    padding: 6px 12px;
    background: var(--indigo-light);
    border-radius: 8px;
    display: inline-block;
    border-bottom: none;
}
.group-header:first-child { margin-top: 0; }

/* ── Student cards ────────────────────────────────────────────────── */
.student-card {
    background: var(--card-bg);
    border: 1.5px solid #e5e7ed;
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    overflow: hidden;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.student-card:hover {
    border-color: var(--indigo);
    box-shadow: 0 2px 8px rgba(79,70,229,0.08);
}

.card-summary {
    padding: 14px 18px;
    cursor: pointer;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 6px 14px;
    align-items: start;
}

.card-row1 { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.student-name { font-weight: 700; font-size: 0.92rem; letter-spacing: -0.01em; }
.student-email { color: var(--text-muted); font-size: 0.78rem; }
.student-grade {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg);
    padding: 1px 8px;
    border-radius: 20px;
    font-weight: 500;
}
.student-hmg {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--indigo);
    background: var(--indigo-light);
    padding: 1px 8px;
    border-radius: 20px;
}
.student-eff-grade {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--purple);
    background: var(--purple-light);
    padding: 1px 8px;
    border-radius: 20px;
}

.card-row2 {
    font-size: 0.78rem;
    color: var(--text-muted);
    grid-column: 1 / -1;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
}

.enrollment-text { max-width: 400px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.last-test .passed { color: #16a34a; font-weight: 700; }
.last-test .failed { color: var(--red); font-weight: 700; }

.card-row3 {
    grid-column: 1 / -1;
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
    font-size: 0.78rem;
    margin-top: 6px;
    padding-top: 10px;
    border-top: 1px solid #f0f2f5;
}

.last-xp-date { font-size: 0.75rem; color: var(--orange); font-weight: 600; }
.last-xp-date.no-xp { color: var(--red); }
.break-xp-note { font-size: 0.72rem; color: var(--text-muted); font-weight: 400; }

.metric { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.metric-bar {
    width: 64px; height: 8px;
    background: #e5e7eb;
    border-radius: 10px;
    overflow: hidden;
}
.metric-fill { height: 100%; border-radius: 10px; transition: width 0.3s; }
.metric-fill.green { background: var(--green); }
.metric-fill.red { background: var(--red); }
.metric-fill.orange { background: var(--orange); }

.insights-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
}
.insights-badge.high { background: var(--red-bg); color: var(--red); }
.insights-badge.medium { background: var(--orange-bg); color: var(--orange); }
.insights-badge.low { background: var(--yellow-bg); color: #854d0e; }
.insights-badge.none { background: var(--green-bg); color: #16a34a; }

.expand-icon {
    grid-row: 1 / 4;
    grid-column: 2;
    align-self: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    opacity: 0.3;
    transition: transform 0.2s, opacity 0.15s;
}
.student-card:hover .expand-icon { opacity: 0.6; }
.student-card.expanded .expand-icon { transform: rotate(180deg); opacity: 0.6; }

/* ── Expanded detail ──────────────────────────────────────────────── */
.card-detail {
    display: none;
    padding: 0 18px 18px;
    border-top: 1px solid #f0f2f5;
    margin-top: 4px;
}
.student-card.expanded .card-detail { display: block; }

.detail-section { margin-top: 14px; }
.detail-section h4 {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--indigo);
    font-weight: 700;
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 2px solid var(--indigo-light);
}

.insight-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
    font-size: 0.82rem;
}
.insight-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.insight-dot.high { background: var(--red); }
.insight-dot.medium { background: var(--orange); }
.insight-dot.low { background: var(--yellow); }

.detail-table {
    width: 100%;
    font-size: 0.8rem;
    border-collapse: separate;
    border-spacing: 0;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}
.detail-table th {
    text-align: left;
    font-weight: 600;
    padding: 8px 10px;
    color: var(--text-muted);
    font-size: 0.72rem;
    background: #f8f9fb;
    border-bottom: 1.5px solid var(--border);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.detail-table td {
    padding: 6px 10px;
    border-bottom: 1px solid #f0f2f5;
}
.detail-table tr:last-child td { border-bottom: none; }
.detail-table .score-pass { color: #16a34a; font-weight: 700; }
.detail-table .score-fail { color: var(--red); font-weight: 700; }
.detail-table .rushed-tag {
    background: var(--red-bg);
    color: var(--red);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 700;
}

.next-test-pending {
    display: inline-block;
    padding: 5px 14px;
    background: var(--indigo-light);
    color: var(--indigo);
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
}
.next-test-retaking {
    display: inline-block;
    padding: 5px 14px;
    background: var(--orange-bg);
    color: var(--orange);
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
}
.mismatch-warning {
    padding: 8px 14px;
    background: var(--orange-bg);
    color: #b45309;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 500;
}
.no-data { color: var(--text-muted); font-style: italic; font-size: 0.82rem; }
.hidden { display: none !important; }

/* ── Metrics Page ─────────────────────────────────────────────────── */
.metrics-container { padding: 24px 32px; }

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}
.metric-card {
    background: var(--card-bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    text-align: center;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.metric-card.clickable { cursor: pointer; }
.metric-card.clickable:hover {
    border-color: var(--indigo);
    box-shadow: 0 2px 12px rgba(79,70,229,0.1);
}
.metric-card .metric-value {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.03em;
}
.metric-card .metric-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-weight: 500;
}
.metric-card .metric-sub {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.metric-value.green { color: #16a34a; }
.metric-value.red { color: var(--red); }
.metric-value.orange { color: var(--orange); }
.metric-value.blue { color: var(--indigo); }

.metrics-section { margin-bottom: 32px; }
.metrics-section h2 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 14px;
    padding: 0 0 8px 14px;
    border-bottom: none;
    border-left: 4px solid var(--indigo);
    color: var(--text);
    letter-spacing: -0.01em;
}

.metrics-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.85rem;
    background: var(--card-bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.metrics-table th {
    text-align: left;
    padding: 12px 16px;
    font-weight: 600;
    font-size: 0.72rem;
    color: var(--text-muted);
    background: #f8f9fb;
    border-bottom: 2px solid var(--border);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.metrics-table td {
    padding: 10px 16px;
    border-bottom: 1px solid #f0f2f5;
    font-weight: 500;
}
.metrics-table tr:last-child td { border-bottom: none; }
.metrics-table tbody tr:nth-child(even) td { background: #fafbfc; }
.metrics-table tbody tr:hover td { background: var(--indigo-light); }
.metrics-table .score-pass { color: #16a34a; font-weight: 700; }
.metrics-table .score-fail { color: var(--red); font-weight: 700; }

.clickable-row { cursor: pointer; transition: background 0.15s; }
.clickable-row:hover { background: var(--indigo-light); }

.bar-cell { display: flex; align-items: center; gap: 8px; }
.bar-bg {
    flex: 1; height: 8px;
    background: #e5e7eb;
    border-radius: 10px;
    overflow: hidden;
    max-width: 120px;
}
.bar-fill { height: 100%; border-radius: 10px; }
.bar-fill.green { background: var(--green); }
.bar-fill.red { background: var(--red); }
.bar-fill.orange { background: var(--orange); }

/* ── Drill-down panel ─────────────────────────────────────────────── */
.metric-drilldown {
    background: var(--card-bg);
    border: 2px solid var(--indigo);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
    max-height: 600px;
    overflow-y: auto;
}
.drilldown-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.drilldown-header h3 { font-size: 1rem; font-weight: 700; color: var(--indigo); }
.drilldown-close {
    background: none;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 2px 8px;
    color: var(--text-muted);
    transition: all 0.15s;
}
.drilldown-close:hover { background: var(--red-bg); color: var(--red); border-color: var(--red); }
.drilldown-table { font-size: 0.8rem; }
.drilldown-student-row { cursor: pointer; }
.drilldown-student-row:hover { background: var(--indigo-light); }
.drilldown-student-link { color: var(--indigo); cursor: pointer; }
.drilldown-student-link:hover { text-decoration: underline; }
.drilldown-insights-row td { padding: 8px 12px; background: #fafbfc; border-top: none; }
.drilldown-insights { padding: 4px 0; }
.drilldown-insights .insight-item { padding: 3px 0; font-size: 0.82rem; }
.drilldown-insights .detail-table { margin-top: 4px; font-size: 0.78rem; }

/* ── EG Analysis ──────────────────────────────────────────────────── */
.eg-section { border-top: 3px solid var(--indigo); padding-top: 16px; }
.eg-pace-box {
    font-size: 0.85rem;
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    margin: 14px 0;
    line-height: 1.6;
    font-weight: 500;
}
.eg-pace-box.on-pace {
    background: var(--green-bg);
    border: 2px solid var(--green);
    color: #16a34a;
}
.eg-pace-box.off-pace {
    background: var(--red-bg);
    border: 2px solid var(--red);
    color: var(--red);
}

/* ── Test Results Page ────────────────────────────────────────────── */
.test-results-container { padding: 24px 32px; }

.tr-summary {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 16px;
    font-size: 0.9rem;
}
.tr-stat { color: var(--text-muted); font-weight: 500; }
.tr-stat.green { color: #16a34a; }
.tr-stat.red { color: var(--red); }
.tr-stat strong { font-size: 1.1rem; font-weight: 800; }

.tr-filters {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--border);
}
.tr-count { font-size: 0.82rem; color: var(--text-muted); margin-left: auto; font-weight: 500; }

.tr-date-group { margin-bottom: 20px; }
.tr-date-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--border);
}
.tr-date { font-weight: 800; font-size: 0.9rem; color: var(--text); }
.tr-date-stats { font-size: 0.78rem; color: var(--text-muted); font-weight: 500; }

.tr-table { font-size: 0.8rem; }
.tr-table td { vertical-align: middle; }
.tr-email { font-size: 0.72rem; color: var(--text-muted); }

.tr-type-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
}
.tr-type-badge.eoc { background: var(--indigo-light); color: var(--indigo); }
.tr-type-badge.test-out { background: var(--green-bg); color: #16a34a; }
.tr-type-badge.placement { background: var(--yellow-bg); color: #854d0e; }

.tr-row.hidden { display: none !important; }
.tr-date-group.hidden { display: none !important; }

/* ── Testing Loops ────────────────────────────────────────────────── */
.loop-tier-header {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border);
}
.loop-tier-header .tr-count-inline {
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-left: 6px;
}
.loop-tier { display: flex; flex-direction: column; gap: 10px; }
.loop-card {
    background: var(--card-bg);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 10px;
    overflow: hidden;
    transition: border-color 0.2s;
}
.loop-card:hover { border-color: #b8bdd0; }
.loop-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    cursor: pointer;
    gap: 12px;
}
.loop-card-header:hover { background: #fafbfd; }
.loop-card-summary { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; flex: 1; }
.loop-meta { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }
.loop-expand-icon {
    font-size: 0.6rem;
    color: var(--indigo);
    background: var(--indigo-light);
    width: 24px; height: 24px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 6px;
    transition: transform 0.2s;
}
.loop-card.expanded > .loop-card-header .loop-expand-icon,
.loop-test.test-expanded > .loop-test-header .loop-expand-icon,
.loop-skill-course.course-expanded > .loop-skill-course-header .loop-expand-icon {
    transform: rotate(180deg);
}
.loop-card-detail { display: none; padding: 0 18px 18px; }
.loop-card.expanded > .loop-card-detail { display: block; }

.loop-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 700;
}
.loop-badge.rush { background: var(--red-bg); color: var(--red); }
.loop-badge.deprec { background: var(--orange-bg); color: var(--orange); }
.loop-badge.aw-gap { background: var(--purple-light); color: var(--purple); }
.loop-badge.mastered { background: var(--green-bg); color: #16a34a; }
.loop-badge.priority-high { background: var(--red-bg); color: var(--red); }
.loop-badge.priority-med { background: var(--orange-bg); color: var(--orange); }

.loop-section { margin-top: 14px; padding-top: 14px; border-top: 1px solid #f0f2f5; }
.loop-section h4 { margin-bottom: 8px; font-size: 0.88rem; font-weight: 700; }
.loop-analysis-field { margin-bottom: 6px; font-size: 0.82rem; line-height: 1.6; }

.loop-flag { font-size: 0.82rem; margin-bottom: 4px; font-weight: 500; }
.loop-flag.rush-flag { color: var(--red); }
.loop-flag.deprec-flag { color: var(--orange); }
.loop-flag.aw-flag { color: var(--purple); }
.loop-section ul { margin-left: 20px; font-size: 0.8rem; }

.loop-test {
    border: 1.5px solid var(--border);
    border-radius: 8px;
    margin-bottom: 6px;
    overflow: hidden;
    transition: border-color 0.15s;
}
.loop-test:hover { border-color: var(--indigo); }
.loop-test-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 14px;
    cursor: pointer;
    gap: 10px;
    font-size: 0.84rem;
}
.loop-test-header:hover { background: #fafbfd; }
.loop-test-name { font-weight: 700; }
.loop-test-meta { color: var(--text-muted); font-size: 0.78rem; font-weight: 500; }
.loop-test-detail { display: none; padding: 8px 14px; }
.loop-test.test-expanded > .loop-test-detail { display: block; }

.loop-q-table { font-size: 0.76rem; }
.loop-q-table th { font-size: 0.72rem; }
.loop-q-text { max-width: 300px; white-space: pre-wrap; word-break: break-word; font-size: 0.74rem; }
.loop-q-table tr.score-fail { background: var(--red-bg); }
.loop-q-table tr.score-partial { background: var(--orange-bg); }
.loop-q-table .score-pass { color: #16a34a; font-weight: 700; }
.loop-q-table .score-fail { color: var(--red); font-weight: 700; }
.loop-q-table .score-partial { color: var(--orange); font-weight: 700; }
.loop-skill-table .score-pass { color: #16a34a; font-weight: 700; }
.loop-skill-table .score-fail { color: var(--red); font-weight: 700; }

.loop-skill-course { border: 1.5px solid var(--border); border-radius: 8px; margin-bottom: 6px; overflow: hidden; }
.loop-skill-course:hover { border-color: var(--indigo); }
.loop-skill-course-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 14px;
    cursor: pointer;
    font-size: 0.84rem;
}
.loop-skill-course-header:hover { background: #fafbfd; }
.loop-skill-course-detail { display: none; padding: 0 14px 8px; }
.loop-skill-course.course-expanded > .loop-skill-course-detail { display: block; }
.loop-skill-table { font-size: 0.78rem; }
.loop-skill-table th { font-size: 0.72rem; }

/* ── Responsive ───────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .header-top { flex-direction: column; align-items: flex-start; }
    .dropdown-row { flex-direction: column; gap: 10px; }
    .dropdown { width: 100%; }
    .card-row1 { flex-direction: column; gap: 4px; }
    .card-row2 { flex-direction: column; gap: 4px; }
    .card-row3 { flex-direction: column; gap: 8px; }
    .main { padding: 16px; }
    .metrics-container { padding: 16px; }
    .metrics-grid { grid-template-columns: repeat(2, 1fr); }
    .campus-header { flex-direction: column; gap: 8px; align-items: flex-start; }
    .campus-metrics { gap: 4px; }
    .test-results-container { padding: 16px; }
    .tr-filters { flex-direction: column; align-items: stretch; }
    .tr-table { font-size: 0.72rem; }
    .header-meta { padding: 8px 16px; }
    .nav-links { flex-wrap: wrap; }
}