/* ── Roster-specific styles ── */
        .roster-topbar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            margin-bottom: 24px;
        }
        .roster-topbar .search-bar {
            flex: 1;
            min-width: 180px;
            margin: 0;
        }
        .roster-topbar .search-bar input {
            width: 100%;
        }
        .roster-topbar select.form-input {
            width: auto;
            min-width: 160px;
        }

        /* Student card */
        .student-card {
            border: var(--border-sketch);
            border-radius: var(--radius);
            background: var(--paper-warm);
            box-shadow: var(--shadow-paper);
            margin-bottom: 12px;
            transition: box-shadow 0.1s;
            overflow: hidden;
        }
        .student-card-header {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            cursor: pointer;
            user-select: none;
        }
        .student-card-header:hover { background: var(--paper-alt); }

        .student-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--accent-gold-light);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-body); font-weight: 700;
            font-size: 1.2rem;
            color: var(--ink);
            flex-shrink: 0;
        }
        .student-card-name {
            font-family: var(--font-hand);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--ink);
            flex: 1;
        }
        .student-card-meta {
            display: flex;
            gap: 8px;
            align-items: center;
            flex-wrap: wrap;
        }
        .student-expand-arrow {
            font-size: 0.9rem;
            color: var(--ink-faint);
            transition: transform 0.2s;
        }
        .student-card.expanded .student-expand-arrow { transform: rotate(180deg); }

        /* Student detail panel */
        .student-detail {
            display: none;
            border-top: var(--border-light);
            padding: 16px;
            background: var(--paper);
        }
        .student-card.expanded .student-detail { display: block; }

        .detail-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px 20px;
            margin-bottom: 16px;
        }
        @media (max-width: 600px) {
            .detail-grid { grid-template-columns: 1fr; }
            .roster-topbar { flex-direction: column; align-items: stretch; }
        }
        .detail-item label {
            font-family: var(--font-hand);
            font-size: 1rem;
            color: var(--ink-faint);
            display: block;
            margin-bottom: 2px;
        }
        .detail-item span {
            font-family: var(--font-hand);
            font-size: 1.1rem;
            color: var(--ink);
        }

        /* Notes timeline */
        .notes-section { margin-top: 16px; }
        .notes-section h4 {
            font-family: var(--font-body); font-weight: 700;
            font-size: 1rem;
            margin-bottom: 12px;
            color: var(--ink-light);
            border-bottom: var(--border-light);
            padding-bottom: 6px;
        }
        .note-entry {
            display: flex;
            gap: 12px;
            margin-bottom: 14px;
            padding: 10px 12px;
            border-radius: var(--radius);
            background: var(--paper-alt);
            border-left: 3px solid var(--ink-faint);
        }
        .note-entry.type-breakthrough {
            background: var(--accent-gold-light);
            border-left-color: var(--accent-gold);
        }
        .note-entry.type-highlight {
            background: #eef6ff;
            border-left-color: #3a86ff;
        }
        [data-theme="dark"] .note-entry.type-highlight {
            background: #0f1f33;
            border-left-color: #3a86ff;
        }
        .note-entry.type-struggle {
            background: var(--accent-red-light);
            border-left-color: var(--accent-red);
        }
        .note-entry.type-absent {
            background: var(--paper-alt);
            border-left-color: var(--ink-faint);
        }
        .note-emoji { font-size: 1.3rem; flex-shrink: 0; line-height: 1.4; }
        .note-body { flex: 1; }
        .note-date {
            font-family: var(--font-hand);
            font-size: 0.95rem;
            color: var(--ink-faint);
            margin-bottom: 2px;
        }
        .note-text {
            font-family: var(--font-hand);
            font-size: 1.1rem;
            color: var(--ink);
            line-height: 1.4;
            white-space: pre-wrap;
        }

        /* Add note form */
        .add-note-form {
            display: none;
            background: var(--paper-warm);
            border: var(--border-light);
            border-radius: var(--radius);
            padding: 14px;
            margin-top: 12px;
        }
        .add-note-form.open { display: block; }
        .add-note-form .form-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .add-note-form .form-row .form-group { flex: 1; min-width: 140px; margin-bottom: 10px; }

        /* Edit student form */
        .edit-student-form {
            display: none;
            background: var(--paper-alt);
            border: var(--border-light);
            border-radius: var(--radius);
            padding: 16px;
            margin-bottom: 14px;
        }
        .edit-student-form.open { display: block; }
        .edit-student-form .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        @media (max-width: 600px) {
            .edit-student-form .form-row { grid-template-columns: 1fr; }
        }

        /* Group metrics */
        .group-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }
        .group-chip {
            font-family: var(--font-hand);
            font-size: 1.05rem;
            font-weight: 600;
            padding: 6px 14px;
            background: var(--paper-warm);
            border: var(--border-sketch);
            border-radius: var(--radius);
            box-shadow: var(--shadow-paper);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .group-chip .group-count {
            font-family: var(--font-body); font-weight: 700;
            font-size: 1rem;
            color: var(--accent-gold);
        }
        .group-chip:hover { box-shadow: var(--shadow-lift); transform: translate(-1px, -1px); }

        /* Add student form card */
        .add-student-card {
            display: none;
            margin-bottom: 20px;
        }
        .add-student-card.open { display: block; }

        /* Bulk add form */
        .bulk-add-card {
            display: none;
            margin-bottom: 20px;
        }
        .bulk-add-card.open { display: block; }

        /* Skill / age tags */
        .tag-skill { background: var(--paper-alt); border: 1px solid #ccc; }
        .tag-age { background: var(--accent-gold-light); border: 1px solid var(--accent-gold); }

        /* Pagination */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 20px;
        }

        /* Divider */
        .section-divider {
            font-family: var(--font-body); font-weight: 700;
            font-size: 0.9rem;
            color: var(--ink-faint);
            text-align: center;
            letter-spacing: 2px;
            margin: 20px 0 14px;
        }

        /* Action row */
        .student-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 14px;
            padding-top: 12px;
            border-top: var(--border-light);
        }

        .empty-note {
            font-family: var(--font-hand);
            font-size: 1.1rem;
            color: var(--ink-faint);
            font-style: italic;
            text-align: center;
            padding: 12px;
        }