/* =========================================================
   TUTOR DASHBOARD — same workspace language as the seller
   dashboard: deep violet sidebar, light canvas, white cards,
   IBM Plex Mono for figures. Bottom tabs on phones.
   Scoped to #tutorDashboardPage.
   ========================================================= */

#tutorDashboardPage {
    --td-side: #17122a;
    --td-side-panel: #221b38;
    --td-side-border: #30274b;
    --td-side-text: #c9c2dc;
    --td-side-muted: #7f76a0;
    --td-canvas: #f4f3f8;
    --td-card: #ffffff;
    --td-head: #f3f2f7;
    --td-border: #e4e2ec;
    --td-ink: #16131f;
    --td-ink-2: #3b3650;
    --td-muted: #6b6582;
    --td-purple: #6d28d9;
    --td-purple-hover: #5b21b6;
    --td-purple-soft: #f3edff;
    --td-green: #059669;
    --td-green-soft: #ecfdf5;
    --td-amber: #d97706;
    --td-amber-soft: #fffbeb;
    --td-blue: #2563eb;
    --td-blue-soft: #eff6ff;
    --td-rose: #e11d48;
    --td-rose-soft: #fff1f2;
    --td-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
    --td-sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
    display: none;
    position: fixed;
    inset: 0;
    z-index: 4000;
    background: var(--td-canvas);
    color: var(--td-ink);
    font-family: var(--td-sans);
    grid-template-columns: 248px 1fr;
}

#tutorDashboardPage.open { display: grid; }
body.tutor-dashboard-open { overflow: hidden; }

#tutorDashboardPage * { box-sizing: border-box; }
#tutorDashboardPage button { font-family: inherit; cursor: pointer; }

/* sidebar */
#tutorDashboardPage .td-side {
    background: var(--td-side);
    color: var(--td-side-text);
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 18px 14px;
    overflow-y: auto;
}
#tutorDashboardPage .td-brand { display: flex; align-items: center; gap: 6px; padding: 0 6px; }
#tutorDashboardPage .td-brand strong { color: #fff; letter-spacing: .08em; }
#tutorDashboardPage .td-brand span { color: #c4b5fd; font-family: var(--td-mono); font-size: 12px; letter-spacing: .14em; }
#tutorDashboardPage .td-exit {
    margin-left: auto; width: 32px; height: 32px; border-radius: 8px;
    border: 1px solid var(--td-side-border); background: var(--td-side-panel); color: var(--td-side-text);
}
#tutorDashboardPage .td-profile {
    display: flex; gap: 10px; align-items: center; padding: 12px;
    background: var(--td-side-panel); border: 1px solid var(--td-side-border); border-radius: 10px;
}
#tutorDashboardPage .td-profile strong { display: block; color: #fff; font-size: 14px; }
#tutorDashboardPage .td-profile span { font-size: 12px; color: #a7f3d0; }
#tutorDashboardPage .td-avatar {
    width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; flex: none;
    background: linear-gradient(135deg, #7c3aed, #a855f7); color: #fff; font-weight: 700;
}
#tutorDashboardPage .td-nav { display: flex; flex-direction: column; gap: 2px; }
#tutorDashboardPage .td-nav-group {
    margin: 12px 8px 4px; font-family: var(--td-mono); font-size: 10px;
    text-transform: uppercase; letter-spacing: .14em; color: var(--td-side-muted);
}
#tutorDashboardPage .td-nav-item {
    display: flex; align-items: center; gap: 10px; width: 100%; padding: 9px 10px;
    border: 0; border-radius: 8px; background: transparent; color: var(--td-side-text);
    font-size: 14px; text-align: left;
}
#tutorDashboardPage .td-nav-item i { width: 18px; text-align: center; color: var(--td-side-muted); }
#tutorDashboardPage .td-nav-item:hover { background: var(--td-side-panel); color: #fff; }
#tutorDashboardPage .td-nav-item.active { background: var(--td-purple); color: #fff; }
#tutorDashboardPage .td-nav-item.active i { color: #fff; }
#tutorDashboardPage .td-nav-link { margin-top: 2px; }
#tutorDashboardPage .td-help {
    margin-top: auto; display: flex; gap: 10px; padding: 12px; border-radius: 10px;
    background: var(--td-side-panel); border: 1px solid var(--td-side-border); font-size: 12px;
}
#tutorDashboardPage .td-help i { color: #fbbf24; margin-top: 2px; }
#tutorDashboardPage .td-help strong { display: block; color: #fff; margin-bottom: 2px; }

/* main */
#tutorDashboardPage .td-main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
#tutorDashboardPage .td-top {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    padding: 14px 24px; background: var(--td-card); border-bottom: 1px solid var(--td-border);
}
#tutorDashboardPage .td-top-title { font-size: 18px; font-weight: 700; }
#tutorDashboardPage .td-top-sub { font-size: 12px; color: var(--td-muted); }
#tutorDashboardPage .td-top-actions { display: flex; gap: 8px; }
#tutorDashboardPage .td-body { flex: 1; overflow-y: auto; padding: 22px 24px 40px; }

#tutorDashboardPage .td-btn {
    display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 8px;
    border: 1px solid var(--td-purple); background: var(--td-purple); color: #fff; font-size: 13px; font-weight: 600;
}
#tutorDashboardPage .td-btn:hover { background: var(--td-purple-hover); }
#tutorDashboardPage .td-btn:disabled { opacity: .6; cursor: default; }
#tutorDashboardPage .td-btn-ghost { background: #fff; color: var(--td-ink-2); border-color: var(--td-border); }
#tutorDashboardPage .td-btn-ghost:hover { background: var(--td-purple-soft); color: var(--td-purple); }
#tutorDashboardPage .td-link { border: 0; background: none; color: var(--td-purple); font-weight: 600; font-size: 13px; }

#tutorDashboardPage .td-welcome { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
#tutorDashboardPage .td-welcome h2 { margin: 0 0 2px; font-size: 22px; }
#tutorDashboardPage .td-welcome p { margin: 0; color: var(--td-muted); }

#tutorDashboardPage .td-kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 18px; }
#tutorDashboardPage .td-kpis-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
#tutorDashboardPage .td-kpi {
    position: relative; background: var(--td-card); border: 1px solid var(--td-border); border-radius: 10px;
    padding: 16px; border-top: 3px solid var(--td-purple);
}
#tutorDashboardPage .td-kpi-icon {
    position: absolute; right: 14px; top: 14px; width: 34px; height: 34px; border-radius: 8px;
    display: grid; place-items: center; background: var(--td-purple-soft); color: var(--td-purple);
}
#tutorDashboardPage .td-kpi-label { font-family: var(--td-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--td-muted); }
#tutorDashboardPage .td-kpi-value { font-family: var(--td-mono); font-size: 24px; font-weight: 600; margin-top: 8px; word-break: break-word; }
#tutorDashboardPage .td-kpi-foot { font-size: 12px; color: var(--td-muted); margin-top: 4px; }
#tutorDashboardPage .td-tone-green { border-top-color: var(--td-green); }
#tutorDashboardPage .td-tone-green .td-kpi-icon { background: var(--td-green-soft); color: var(--td-green); }
#tutorDashboardPage .td-tone-amber { border-top-color: var(--td-amber); }
#tutorDashboardPage .td-tone-amber .td-kpi-icon { background: var(--td-amber-soft); color: var(--td-amber); }
#tutorDashboardPage .td-tone-blue { border-top-color: var(--td-blue); }
#tutorDashboardPage .td-tone-blue .td-kpi-icon { background: var(--td-blue-soft); color: var(--td-blue); }

#tutorDashboardPage .td-grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-bottom: 14px; }
#tutorDashboardPage .td-grid-wide { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); }
#tutorDashboardPage .td-card { background: var(--td-card); border: 1px solid var(--td-border); border-radius: 10px; margin-bottom: 14px; min-width: 0; }
#tutorDashboardPage .td-grid-2 > .td-card { margin-bottom: 0; }
#tutorDashboardPage .td-card-head {
    display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap;
    padding: 12px 16px; border-bottom: 1px solid var(--td-border);
}
#tutorDashboardPage .td-card-head h3 { margin: 0; font-size: 15px; }
#tutorDashboardPage .td-pad { padding: 14px 16px; margin: 0; }
#tutorDashboardPage .td-muted { color: var(--td-muted); font-size: 13px; }
#tutorDashboardPage .td-mono { font-family: var(--td-mono); }

#tutorDashboardPage .td-table-wrap { overflow-x: auto; }
#tutorDashboardPage .td-table { width: 100%; border-collapse: collapse; font-size: 13px; }
#tutorDashboardPage .td-table th {
    text-align: left; padding: 9px 16px; background: var(--td-head); color: var(--td-muted);
    font-family: var(--td-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; white-space: nowrap;
}
#tutorDashboardPage .td-table td { padding: 10px 16px; border-top: 1px solid var(--td-border); vertical-align: top; }

#tutorDashboardPage .td-pill {
    display: inline-flex; align-items: center; gap: 4px; padding: 3px 9px; border-radius: 999px;
    font-size: 12px; font-weight: 600; white-space: nowrap; background: var(--td-purple-soft); color: var(--td-purple);
}
#tutorDashboardPage .td-pill-good { background: var(--td-green-soft); color: var(--td-green); }
#tutorDashboardPage .td-pill-warn { background: var(--td-amber-soft); color: var(--td-amber); }
#tutorDashboardPage .td-pill-bad { background: var(--td-rose-soft); color: var(--td-rose); }
#tutorDashboardPage .td-pill-muted { background: var(--td-head); color: var(--td-muted); }

#tutorDashboardPage .td-chart { display: flex; align-items: flex-end; gap: 12px; height: 220px; padding: 16px; }
#tutorDashboardPage .td-bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; min-width: 0; }
#tutorDashboardPage .td-bar-value { font-family: var(--td-mono); font-size: 10px; color: var(--td-muted); height: 16px; white-space: nowrap; }
#tutorDashboardPage .td-bar-track { flex: 1; width: 100%; max-width: 44px; display: flex; align-items: flex-end; }
#tutorDashboardPage .td-bar { width: 100%; border-radius: 6px 6px 2px 2px; background: linear-gradient(180deg, #8b5cf6, var(--td-purple)); }
#tutorDashboardPage .td-bar-label { font-family: var(--td-mono); font-size: 11px; color: var(--td-muted); margin-top: 6px; }

#tutorDashboardPage .td-class-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; padding: 16px; }
#tutorDashboardPage .td-class { border: 1px solid var(--td-border); border-radius: 10px; padding: 14px; border-left: 3px solid var(--td-purple); }
#tutorDashboardPage .td-class-paused { border-left-color: var(--td-muted); background: #fbfafd; }
#tutorDashboardPage .td-class-top { display: flex; justify-content: space-between; align-items: center; }
#tutorDashboardPage .td-class-price { font-family: var(--td-mono); font-size: 13px; font-weight: 600; }
#tutorDashboardPage .td-class h4 { margin: 10px 0 2px; font-size: 16px; }
#tutorDashboardPage .td-class-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 12px 0; }
#tutorDashboardPage .td-class-stats div { background: var(--td-head); border-radius: 8px; padding: 8px; text-align: center; }
#tutorDashboardPage .td-class-stats strong { display: block; font-family: var(--td-mono); font-size: 14px; }
#tutorDashboardPage .td-class-stats span { font-size: 11px; color: var(--td-muted); }
#tutorDashboardPage .td-class-actions { display: flex; gap: 6px; flex-wrap: wrap; }
#tutorDashboardPage .td-class-actions .td-btn { padding: 6px 10px; font-size: 12px; }

#tutorDashboardPage .td-empty { text-align: center; padding: 40px 16px; color: var(--td-muted); }
#tutorDashboardPage .td-empty i { font-size: 28px; color: var(--td-purple); margin-bottom: 8px; }
#tutorDashboardPage .td-error i { color: var(--td-rose); }

#tutorDashboardPage .td-form { display: flex; flex-direction: column; gap: 12px; padding: 16px; }
#tutorDashboardPage .td-form h3 { margin: 0; }
#tutorDashboardPage .td-form label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; font-weight: 600; color: var(--td-ink-2); flex: 1; min-width: 0; }
#tutorDashboardPage .td-form input:not([type="checkbox"]):not([type="radio"]),
#tutorDashboardPage .td-form select,
#tutorDashboardPage .td-form textarea,
#tutorDashboardPage .td-toolbar select {
    width: 100%; padding: 9px 11px; border: 1px solid var(--td-border); border-radius: 8px;
    font: inherit; font-weight: 400; background: #fff; color: var(--td-ink);
}
#tutorDashboardPage .td-form input:focus, #tutorDashboardPage .td-form select:focus, #tutorDashboardPage .td-form textarea:focus {
    outline: 2px solid var(--td-purple-soft); border-color: var(--td-purple);
}
#tutorDashboardPage .td-form-row { display: flex; gap: 10px; flex-wrap: wrap; }
#tutorDashboardPage .td-form-row > label { min-width: 140px; }
#tutorDashboardPage .td-form .td-check { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; }
#tutorDashboardPage .td-form-actions { display: flex; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }
#tutorDashboardPage .td-form-status { margin: 0; min-height: 1em; color: var(--td-rose); font-size: 13px; }
#tutorDashboardPage .td-question { border: 1px dashed var(--td-border); border-radius: 10px; padding: 12px; display: flex; flex-direction: column; gap: 10px; }
#tutorDashboardPage .td-question legend { font-family: var(--td-mono); font-size: 12px; color: var(--td-purple); padding: 0 6px; }

#tutorDashboardPage .td-seg { display: inline-flex; background: var(--td-head); border-radius: 8px; padding: 3px; gap: 2px; }
#tutorDashboardPage .td-seg button { border: 0; background: transparent; padding: 6px 12px; border-radius: 6px; font-size: 13px; color: var(--td-muted); }
#tutorDashboardPage .td-seg button.active { background: #fff; color: var(--td-purple); font-weight: 600; box-shadow: 0 1px 2px rgba(0,0,0,.06); }
#tutorDashboardPage .td-seg-inline { padding: 6px 10px; gap: 16px; }
#tutorDashboardPage .td-seg-inline label { flex-direction: row; align-items: center; gap: 6px; font-weight: 500; }
#tutorDashboardPage .td-toolbar { margin-bottom: 14px; }
#tutorDashboardPage .td-toolbar label { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 13px; }
#tutorDashboardPage .td-toolbar select { width: auto; min-width: 220px; }

#tutorDashboardPage .td-topics { padding: 14px 16px; display: flex; flex-direction: column; gap: 12px; }
#tutorDashboardPage .td-topic-head { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 4px; }
#tutorDashboardPage .td-topic-head span:last-child { font-family: var(--td-mono); }
#tutorDashboardPage .td-progress { height: 8px; background: var(--td-head); border-radius: 999px; overflow: hidden; }
#tutorDashboardPage .td-progress div { height: 100%; background: linear-gradient(90deg, #8b5cf6, var(--td-purple)); }

#tutorDashboardPage .td-feed { list-style: none; margin: 0; padding: 0; }
#tutorDashboardPage .td-feed li { padding: 12px 16px; border-top: 1px solid var(--td-border); font-size: 14px; white-space: pre-wrap; }
#tutorDashboardPage .td-feed li:first-child { border-top: 0; }
#tutorDashboardPage .td-feed-meta { font-size: 12px; color: var(--td-muted); margin-bottom: 4px; }

#tutorDashboardPage .td-def { display: flex; justify-content: space-between; gap: 12px; padding: 10px 16px; border-top: 1px solid var(--td-border); font-size: 14px; }
#tutorDashboardPage .td-def:first-of-type { border-top: 0; }
#tutorDashboardPage .td-def span { color: var(--td-muted); }
#tutorDashboardPage .td-def strong { text-align: right; font-weight: 500; }

#tutorDashboardPage .td-sheet { position: fixed; inset: 0; background: rgba(22, 19, 31, .45); display: flex; align-items: center; justify-content: center; z-index: 2; padding: 16px; }
#tutorDashboardPage .td-sheet[hidden] { display: none; }
#tutorDashboardPage .td-sheet-panel { background: #fff; border-radius: 14px; width: min(620px, 100%); max-height: 90vh; overflow-y: auto; }
#tutorDashboardPage .td-sheet-panel > h3 { margin: 0; padding: 16px 16px 0; }
#tutorDashboardPage .td-more { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 16px; }
#tutorDashboardPage .td-more button {
    display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 14px 6px;
    border: 1px solid var(--td-border); border-radius: 10px; background: #fff; color: var(--td-ink-2); font-size: 12px;
}
#tutorDashboardPage .td-more i { color: var(--td-purple); font-size: 18px; }

#tutorDashboardPage .td-bottom { display: none; }

@media (max-width: 1100px) {
    #tutorDashboardPage .td-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    #tutorDashboardPage .td-grid-2, #tutorDashboardPage .td-grid-wide { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
    #tutorDashboardPage { grid-template-columns: 1fr; }
    #tutorDashboardPage .td-side { display: none; }
    #tutorDashboardPage .td-top { padding: 12px 14px; }
    #tutorDashboardPage .td-top-actions .td-btn span { display: none; }
    #tutorDashboardPage .td-body { padding: 14px 14px 90px; }
    #tutorDashboardPage .td-kpis-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    #tutorDashboardPage .td-kpi-value { font-size: 18px; }
    #tutorDashboardPage .td-kpi-icon { display: none; }
    #tutorDashboardPage .td-bottom {
        display: grid; grid-template-columns: repeat(5, 1fr); position: fixed; left: 0; right: 0; bottom: 0;
        height: 64px; background: #fff; border-top: 1px solid var(--td-border); z-index: 1;
    }
    #tutorDashboardPage .td-bottom button {
        border: 0; background: none; display: flex; flex-direction: column; align-items: center; justify-content: center;
        gap: 3px; font-size: 11px; color: var(--td-muted);
    }
    #tutorDashboardPage .td-bottom button i { font-size: 17px; }
    #tutorDashboardPage .td-bottom button.active { color: var(--td-purple); font-weight: 600; }
    #tutorDashboardPage .td-sheet { align-items: flex-end; padding: 0; }
    #tutorDashboardPage .td-sheet-panel { border-radius: 16px 16px 0 0; width: 100%; }
}