:root {
    --primary: #1e88e5;
    --primary-dark: #1565c0;
    --secondary: #f5f7fa;
    --surface: #ffffff;
    --on-surface: #1a1c1e;
    --on-surface-variant: #44474e;
    --outline: #94a3b8;
    --grid: #cbd5e1;
    --error: #ba1a1a;
    --success: #2e7d32;
    --warn-bg: #fff5f5;
    --transition: all 0.15s ease;
    --print-scale: 1;
    --print-col-name-width: 180px;
    --print-col-score-width: 55px;
    --print-col-total-width: 45px;
    --print-col-percent-width: 40px;

    /* Qat'iy ustun kengliklari (desktop/default) */
    --col-num-width: 50px;
    --col-name-width: 250px;
    --col-total-width: 55px;
    --col-percent-width: 40px;
    --col-actions-width: 30px;
    --col-journal-width: 64px;

    /* Topshiriq ustuni uchun maksimal kenglik */
    --col-task-max-width: 75px;
}

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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f1f5f9;
    color: var(--on-surface);
    padding: 10px 16px;
    line-height: 1.3;
    min-height: 100vh;
}

.preview-container {
    max-width: 100%;
    margin: 0 auto;
}

/* --- Yuqori bar --- */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px 12px;
    background: var(--surface);
    border: 1px solid var(--outline);
    border-radius: 10px;
    padding: 8px 14px;
    margin-bottom: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.top-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary);
    white-space: nowrap;
}

.top-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.preview-tabs {
    display: inline-flex;
    align-items: center;
    padding: 3px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    background: #f1f5f9;
}

.preview-tab {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 15px;
    border: 0;
    border-radius: 7px;
    background: transparent;
    color: #475569;
    font: inherit;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
}

.preview-tab.active {
    background: #fff;
    color: var(--primary-dark);
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.14);
}

.preview-tab.locked {
    color: #7c8390;
    cursor: not-allowed;
}

.tab-lock {
    font-size: 10px;
}

.tab-panel[hidden] {
    display: none !important;
}

/* Yuqoridagi kichik tugmalar */
.btn-sm {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 16px;
    cursor: pointer;
    border: 1px solid var(--outline);
    background: var(--surface);
    color: var(--on-surface-variant);
    transition: var(--transition);
    font-family: inherit;
    white-space: nowrap;
}

.btn-sm:hover {
    background: var(--secondary);
}

.btn-sm.btn-excel {
    color: var(--primary);
    border-color: #90caf9;
}

.btn-sm.btn-excel:hover {
    background: #e3f2fd;
}

.btn-sm.btn-print {
    color: #5d4037;
    border-color: #bcaaa4;
}

.btn-sm.btn-print:hover {
    background: #efebe9;
}

/* Rejim switch - kichik chip */
.mode-switch {
    display: inline-flex;
    gap: 0;
    border: 1px solid var(--outline);
    border-radius: 16px;
    overflow: hidden;
}

.mode-chip {
    padding: 5px 10px;
    font-size: 11px;
    font-weight: 500;
    border: none;
    background: var(--surface);
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition);
    white-space: nowrap;
    color: var(--on-surface-variant);
}

.mode-chip:first-child {
    border-right: 1px solid var(--outline);
}

.mode-chip.mode-warn.active {
    background: #fff3e0;
    color: #e65100;
    font-weight: 600;
}

.mode-chip.mode-strict.active {
    background: #e3f2fd;
    color: var(--primary-dark);
    font-weight: 600;
}

.mode-chip:hover:not(.active) {
    background: var(--secondary);
}


.mode-hint {
    display: none !important;
}

.mode-hint.mode-hint-warn {
    background: #fff8e1;
    border: 1px solid #ffe082;
    color: #5d4037;
}

.mode-hint.mode-hint-strict {
    background: #e3f2fd;
    border: 1px solid #90caf9;
    color: #0d47a1;
}

.mode-hint strong {
    font-weight: 600;
}

/* --- Excel sheet --- */
.excel-sheet {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    margin: 0 auto 12px;
    width: fit-content;
    max-width: 100%;
}

.scores-grid th.col-score {
    white-space: normal;
    word-break: break-word;
    line-height: 1.1;
}

main {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.excel-title {
    text-align: center;
    font-weight: 600;
    font-size: 13px;
    line-height: 1.35;
    padding: 10px 16px;
    margin-bottom: 0;
    background: var(--surface);
    border: 1px solid var(--outline);
    border-bottom: none;
    border-radius: 8px 8px 0 0;
}

/* Maktab ma'lumotlari */
.excel-school-info {
    display: none;
    flex-wrap: wrap;
    gap: 6px 16px;
    padding: 6px 16px;
    background: var(--surface);
    border: 1px solid var(--outline);
    border-top: none;
    border-bottom: none;
    font-size: 12px;
    color: var(--on-surface-variant);
}

.school-info-item {
    white-space: nowrap;
}

.school-info-item strong {
    color: var(--on-surface);
    font-weight: 600;
}

/* Imzolar */
.excel-signatures {
    background: var(--surface);
    border: 1px solid var(--outline);
    border-top: none;
    border-radius: 0 0 8px 8px;
    padding: 14px 20px 18px;
    font-size: 13px;
    line-height: 1.8;
}

.excel-signatures .sig-line {
    margin: 0;
}

.excel-signatures .sig-label {
    font-weight: 500;
}

.excel-signatures .sig-blank {
    color: var(--on-surface-variant);
}

/* O'quvchi qo'shish tugmasi */
.excel-add-student {
    display: flex;
    justify-content: center;
    padding: 6px 16px;
    background: var(--surface);
    border: 1px solid var(--outline);
    border-top: none;
    border-bottom: none;
}

.btn-add-student {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    background: white;
    color: var(--primary);
    border: 1px dashed var(--primary);
    border-radius: 20px;
    font-weight: 500;
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.btn-add-student:hover {
    background: #e3f2fd;
    border-style: solid;
}

/* Table wrapper */
.table-wrapper {
    overflow: visible;
    margin-bottom: 0;
}

@media print {
    .table-wrapper {
        overflow: visible !important;
    }
}

table.scores-grid {
    border-collapse: collapse;
    table-layout: auto;
    width: auto;
    font-size: 12px;
    background: var(--surface);
    border: 1px solid var(--outline);
    border-top: none;
    border-bottom: none;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.scores-grid th.col-name,
.scores-grid td.col-name {
    text-align: left;
}

.scores-grid th.col-score,
.scores-grid td.col-score {
    /* width JS inline style orqali boshqariladi */
}

.scores-grid th,
.scores-grid td {
    padding: 2px 4px;
    border: 1px solid var(--grid);
    text-align: center;
    vertical-align: middle;
    line-height: 1.3;
}

.scores-grid th {
    background: #f1f3f4;
    color: var(--on-surface);
    font-weight: 600;
    font-size: 12px;
    white-space: nowrap;
    padding: 5px 4px;
}

.scores-grid th.col-score {
    white-space: wrap;
    overflow: visible;
    line-height: 1.2;
    font-size: 11px;
}

.scores-grid th.col-num,
.scores-grid td.col-num {
    /* width JS inline style orqali boshqariladi */
}

.scores-grid td.col-num {
    padding: 2px 2px;
    white-space: nowrap;
}

.fill-max-btn,
.header-fill-all {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border: 1px solid var(--outline);
    border-radius: 6px;
    background: #fff;
    color: var(--on-surface-variant);
    font-size: 12px;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.fill-max-btn:hover,
.header-fill-all:hover {
    background: #eef3ff;
    border-color: #90caf9;
}

.scores-grid .col-num .student-number {
    min-width: 18px;
    display: inline-block;
    text-align: center;
}

.scores-grid td input.score-input.filled {
    background: #eef7ff;
}

.scores-grid tr.focused-row td {
    background: rgba(30, 136, 229, 0.08);
}

.scores-grid td.focused-col,
.scores-grid th.focused-col {
    background: rgba(30, 136, 229, 0.12);
}

.scores-grid .col-total.grade-excellent,
.scores-grid .col-percent.grade-excellent {
    background: #fff9c4;
    color: #090;
}

.scores-grid .col-total.grade-good,
.scores-grid .col-percent.grade-good {
    background: #fff9c4;
    color: #0c0;
}

.scores-grid .col-total.grade-warning,
.scores-grid .col-percent.grade-warning {
    background: #fff9c4;
    color: #f90;
}

.scores-grid .col-total.grade-danger,
.scores-grid .col-percent.grade-danger {
    background: #fff9c4;
    color: #f33;
}

.scores-grid .col-name {
    text-align: left;
    padding-left: 4px !important;
    padding-right: 6px !important;
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.scores-grid .col-score {
    padding: 0;
}

.scores-grid .col-total,
.scores-grid .col-percent {
    font-weight: 600;
    font-size: 12px;
}

  .scores-grid .col-actions {
    text-align: center;
    padding: 1px 2px;
}

.scores-grid .journal-cell {
    font-weight: 600;
    font-size: 12px;
}

.scores-grid .journal-match {
    background: #e6f4ea;
    color: #137333;
}

.scores-grid .journal-mismatch {
    background: #fce8e6;
    color: #c5221f;
}

/* Jadval header ranglari */
.scores-grid .row-max-scores th.cell-max,
.scores-grid tfoot .cell-avg,
.scores-grid tfoot .footer-label,
.scores-grid .cell-computed {
    background: #f1f3f4;
    color: var(--on-surface);
    font-weight: 700;
}

.scores-grid tfoot .footer-label {
    text-align: left;
    padding-left: 8px !important;
    color: var(--on-surface);
    font-weight: 700;
}

/* Score input */
.scores-grid td input.score-input {
    display: block;
    width: 100%;
    height: 24px;
    margin: 0;
    padding: 0 4px;
    border: none;
    border-radius: 0;
    text-align: center;
    font-family: inherit;
    font-size: 14px;
    line-height: 24px;
    background: #fff;
}

.scores-grid td input.score-input:focus {
    outline: 2px solid var(--primary);
    outline-offset: -2px;
    position: relative;
    z-index: 1;
}

.scores-grid td input.score-input.invalid {
    background: var(--warn-bg);
    color: var(--error);
    outline: 2px solid var(--error);
    outline-offset: -2px;
}

/* Student name input */
.scores-grid td input.student-name-input {
    display: block;
    width: 100%;
    height: 24px;
    margin: 0;
    padding: 0 6px;
    border: none;
    border-radius: 0;
    text-align: left;
    font-family: inherit;
    font-size: 14px;
    line-height: 24px;
    background: transparent;
    color: var(--on-surface);
    white-space: nowrap;
    overflow-x: auto;
    text-overflow: clip;
}

.scores-grid td input.student-name-input:focus {
    outline: 2px solid var(--primary);
    outline-offset: -2px;
    background: #fff;
    position: relative;
    z-index: 1;
}

/* Delete button */
.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 4px;
    color: var(--on-surface-variant);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.icon-btn:hover {
    background: var(--secondary);
}

.icon-btn.delete:hover {
    color: var(--error);
    background: rgba(186, 26, 26, 0.1);
}

/* Computed cells */
.scores-grid .total-cell,
.scores-grid .percent-cell {
    background: #f8f9fa;
    color: var(--on-surface);
}

.scores-grid tfoot td {
    background: #f8fafc;
    font-weight: 600;
    padding: 5px 6px;
    font-size: 13px;
}

.scores-grid tbody tr:hover td.col-score {
    background-color: #fff;
}

.scores-grid tbody tr:hover td.col-name {
    background-color: #fafafa;
}

/* Footer */
footer {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

/* Page footer (brand + links) */
.page-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px 16px;
    padding: 10px 16px;
    margin-top: 8px;
    background: var(--surface);
    border: 1px solid var(--outline);
    border-radius: 10px;
}

.footer-brand {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 5px;
    line-height: 1.2;
}

.footer-version {
    font-size: 11px;
    font-weight: 500;
    background: #e3f2fd;
    color: var(--primary-dark);
    padding: 1px 6px;
    border-radius: 10px;
    line-height: 1.3;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.footer-link {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 4px 10px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    line-height: 1.2;
}

.footer-link.telegram {
    background: #e3f2fd;
    color: #0088cc;
    border: 1px solid rgba(0, 136, 204, 0.15);
}

.footer-link.telegram:hover {
    background: #bbdefb;
}

.footer-link.phone {
    background: #e8f5e9;
    color: #2e7d32;
    border: 1px solid rgba(46, 125, 50, 0.12);
}

.footer-link.phone:hover {
    background: #c8e6c9;
}
.footer-link.email,
.footer-link.website,
.footer-link.social {
    color: #526079;
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px 20px;
    font-weight: 600;
    border-radius: 28px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--outline);
    color: var(--on-surface-variant);
    padding: 10px 20px;
    font-weight: 500;
    border-radius: 28px;
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-outline:hover {
    background: var(--secondary);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 14px;
    left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: #2c3e50;
    color: white;
    padding: 8px 14px;
    border-radius: 32px;
    font-size: 12px;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease, opacity 0.2s ease;
    opacity: 0;
    pointer-events: none;
    z-index: 100;
    max-width: 92vw;
    text-align: center;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.success {
    background: var(--success);
}

.toast.error {
    background: var(--error);
}

.toast.info {
    background: var(--primary);
}

.hidden {
    display: none;
}

/* Confirm dialog */
.confirm-dialog {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.confirm-dialog.hidden {
    display: none;
}

.confirm-dialog-content {
    background: var(--surface);
    border-radius: 12px;
    padding: 24px 28px;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    text-align: center;
}

.confirm-dialog-content p {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
    color: var(--on-surface);
    line-height: 1.4;
}

.confirm-dialog-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.confirm-dialog-actions .btn-primary {
    background: var(--error);
    min-width: 80px;
    justify-content: center;
}

.confirm-dialog-actions .btn-primary:hover {
    background: #c62828;
}

/* === Preview analytics === */
.analytics-sheet {
    width: min(1100px, 100%);
    margin: 0 auto 12px;
    padding: 22px;
    border: 1px solid var(--outline);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 2px 10px rgba(32, 33, 36, 0.08);
}

.analytics-report-header {
    margin: -22px -22px 18px;
    padding: 10px 18px;
    border-bottom: 1px solid var(--outline);
    border-radius: 16px 16px 0 0;
    background: #f8fafc;
    text-align: center;
}

.analytics-report-title {
    color: #202124;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.35;
}

.analytics-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.analytics-kicker {
    margin: 0 0 4px;
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.analytics-heading h2 {
    margin: 0;
    color: var(--on-surface);
    font-size: 22px;
}

.analytics-heading-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.analytics-status {
    padding: 6px 10px;
    border-radius: 999px;
    background: #e8f0fe;
    color: #174ea6;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.analytics-pending {
    display: grid;
    gap: 8px;
    padding: 18px;
    border: 1px dashed #9aa0a6;
    border-radius: 12px;
    color: var(--on-surface-variant);
    background: #f8f9fa;
}

.analytics-pending.hidden, .analytics-content[hidden] { display: none !important; }
#studentRankings { margin-bottom: 16px; }
.ranking-note { font-size: 12px; color: var(--on-surface-variant); margin: 0 0 8px; }
.ranking-cards { display: grid; grid-template-columns: repeat(auto-fit,minmax(min(240px,100%),1fr)); gap: 10px; }
.ranking-card { --ranking-accent: #18804d; min-width: 0; border: 1px solid var(--grid); border-top: 3px solid var(--ranking-accent); border-radius: 12px; padding: 13px; background: var(--surface); break-inside: avoid; box-shadow: 0 3px 10px #10233a08; }
.ranking-low { --ranking-accent: #326bb8; }
.ranking-zero { --ranking-accent: #af7100; }
.ranking-card h3 { display: flex; align-items: center; gap: 9px; font-size: 14px; margin: 0 0 12px; line-height: 1.4; }
.ranking-icon { display: inline-grid; place-items: center; width: 30px; height: 30px; flex-shrink: 0; border-radius: 9px; color: var(--ranking-accent); background: color-mix(in srgb,var(--ranking-accent) 12%,var(--surface)); font-size: 20px; }
.ranking-card ol { list-style: none; padding: 0; display: grid; gap: 7px; }
.ranking-card li { min-width: 0; overflow-wrap: anywhere; }
.ranking-student { display: flex; align-items: center; gap: 9px; width: 100%; padding: 9px; border: 1px solid var(--grid); border-radius: 9px; background: var(--surface); color: var(--on-surface); text-align: left; font: inherit; cursor: pointer; }
.ranking-student:hover { background: color-mix(in srgb,var(--ranking-accent) 8%,var(--surface)); border-color: var(--ranking-accent); }
.ranking-student:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }
.ranking-position { font-size: 15px; font-weight: 700; color: var(--ranking-accent); flex-shrink: 0; }
.ranking-copy { min-width: 0; font-size: 13px; font-weight: 600; }
.ranking-card li strong { display: block; margin-top: 4px; font-size: 11px; line-height: 1.5; color: var(--on-surface-variant); font-weight: 500; }
.ranking-card p { font-size: 12px; color: var(--on-surface-variant); }
:is(#studentChart,[data-bqm="studentChart"]) g[role="button"] { cursor: pointer; }
:is(#studentChart,[data-bqm="studentChart"]) g[role="button"]:is(:hover,:focus-visible) .chart-hit { fill: #4285f422; stroke: #4285f4; stroke-width: 1; }
@media screen {
  [data-theme="dark"] .ranking-high { --ranking-accent: #83dab0; }
  [data-theme="dark"] .ranking-low { --ranking-accent: #90bcff; }
  [data-theme="dark"] .ranking-zero { --ranking-accent: #f4ca78; }
  .scores-grid tr.filter-retained td.col-num { box-shadow: inset 3px 0 #b88015; }
  .scores-grid tr.stats-target td.col-name { box-shadow: inset 3px 0 var(--primary); }
}
@media print {
  .ranking-cards { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 6px; }
  .ranking-card { padding: 7px; }
  .ranking-card h3 { font-size: 11px; }
  .ranking-card li, .ranking-note { font-size: 10px; }
  .ranking-card li strong { font-size: 9px; }
  .ranking-icon { width: 20px; height: 20px; font-size: 14px; }
  .ranking-card { box-shadow: none; }
  .ranking-student { border: 0; background: transparent; padding: 3px 0; border-radius: 0; color: #111; }
  .ranking-copy { font-size: 10px; }
  .ranking-position { font-size: 11px; }
  .ranking-action-hint { display: none; }
  :is(#studentChart,[data-bqm="studentChart"]) .chart-hit { fill: transparent !important; stroke: none !important; }
}

.analytics-progress {
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: #dfe3e7;
}

.analytics-progress span {
    display: block;
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: var(--primary);
    transition: width 0.2s ease;
}

.analytics-kpis {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 14px;
}

.analytics-kpi {
    padding: 12px;
    border: 1px solid #e0e3e7;
    border-radius: 12px;
    background: #f8fafd;
}

.analytics-kpi span {
    display: block;
    margin-bottom: 4px;
    color: #5f6368;
    font-size: 11px;
}

.analytics-kpi strong {
    color: #202124;
    font-size: 22px;
    line-height: 1;
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.analytics-card {
    min-width: 0;
    padding: 14px;
    border: 1px solid #e0e3e7;
    border-radius: 12px;
    background: #fff;
}

.analytics-card-wide {
    grid-column: 1 / -1;
}

.analytics-card h3 {
    margin: 0 0 4px;
    color: #202124;
    font-size: 15px;
}

.analytics-card p {
    margin: 0 0 10px;
    color: #5f6368;
    font-size: 11px;
}

.insight-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(240px, 0.85fr);
    align-items: center;
    gap: 18px;
}

.insight-chart-right .insight-layout {
    grid-template-columns: minmax(240px, 0.85fr) minmax(0, 1.15fr);
}

.analytics-narrative {
    padding: 12px 14px;
    border-left: 3px solid #90caf9;
    border-radius: 0 10px 10px 0;
    background: #f7faff;
    color: #3c4043;
}

.student-narrative {
    margin-top: 8px;
}

.analytics-narrative .narrative-title {
    display: block;
    margin-bottom: 5px;
    color: #174ea6;
    font-size: 11px;
}

.analytics-narrative p {
    margin: 0;
    color: #3c4043;
    font-size: 11px;
    line-height: 1.45;
}

.analytics-narrative p + p {
    margin-top: 4px;
}

.chart-frame svg {
    display: block;
    width: 100%;
    height: auto;
}

.grade-layout {
    display: grid;
    grid-template-columns: minmax(130px, 0.9fr) minmax(150px, 1.1fr);
    align-items: center;
    gap: 12px;
}

.grade-layout svg {
    width: 100%;
    max-width: 150px;
    justify-self: center;
}

.chart-legend {
    display: grid;
    gap: 7px;
}

.legend-row {
    display: grid;
    grid-template-columns: 10px 1fr auto;
    align-items: center;
    gap: 7px;
    font-size: 11px;
}

.legend-swatch {
    width: 10px;
    height: 10px;
    border-radius: 3px;
}

.task-stat-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 8px;
}

.task-stat-row {
    display: grid;
    grid-template-columns: 38px 1fr 42px;
    align-items: center;
    gap: 8px;
    font-size: 11px;
}

.task-stat-track {
    height: 9px;
    overflow: hidden;
    border-radius: 999px;
    background: #edf0f2;
}

.task-stat-fill {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: #4285f4;
}

@media screen and (max-width: 760px) {
    .analytics-kpis {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .analytics-grid,
    .grade-layout,
    .insight-layout,
    .insight-chart-right .insight-layout {
        grid-template-columns: 1fr;
    }

    .analytics-sheet {
        padding: 14px;
    }

    .analytics-report-header {
        margin: -14px -14px 14px;
        border-radius: 14px 14px 0 0;
    }

    .analytics-heading,
    .analytics-heading-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .grade-layout svg {
        max-width: 120px;
    }
}

/* === Print styles === */
@media print {
    body {
        background: white;
        padding: 0;
        margin: 0;
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
        font-size: 10px;
    }

    .preview-container {
        max-width: 100%;
        padding: 0;
        transform-origin: top left;
    }

    .top-bar,
    .mode-hint,
    footer,
    .page-footer,
    .excel-add-student,
    .excel-sheet .icon-btn,
    .excel-sheet .col-actions,
    .excel-sheet .col-journal,
    .scores-grid .col-journal,
    .toast,
    .confirm-dialog {
        display: none !important;
    }

    .fill-max-btn {
        display: none !important;
    }

    body.print-table-only .analytics-sheet,
    body.print-analysis-only .excel-sheet {
        display: none !important;
    }

    body.print-table-only .excel-sheet {
        display: block !important;
    }

    .excel-sheet {
        display: block;
        margin: 0;
        page-break-inside: auto;
        max-width: none;
        width: auto;
        overflow: visible;
        zoom: var(--print-scale);
        transform: none;
        transform-origin: top left;
    }

    .analytics-sheet {
        display: none !important;
    }

    body.analytics-ready:not(.print-table-only) .analytics-sheet {
        display: block !important;
        box-sizing: border-box;
        width: 194mm;
        height: auto;
        max-height: none;
        margin: 0;
        padding: 8mm 7mm 5mm;
        border: 0;
        border-radius: 0;
        box-shadow: none;
        break-before: auto;
        page-break-before: auto;
        break-inside: auto;
        page-break-inside: auto;
        zoom: var(--analytics-print-scale,1);
        transform: none;
        overflow: visible;
    }

    body.print-analysis-only main,
    body.print-analysis-only .preview-container {
        display: block;
        width: 100%;
        height: auto;
        min-height: 0;
        overflow: visible;
    }

    .analytics-report-header {
        margin: -8mm -7mm 4mm;
        padding: 3mm 7mm;
        border-radius: 0;
    }

    .analytics-report-title {
        font-size: 13px;
    }

    .analytics-pending,
    .analytics-status {
        display: none !important;
    }

    .analytics-heading {
        margin-bottom: 10px;
    }

    .analytics-heading h2 {
        font-size: 18px;
    }

    .analytics-kpis {
        gap: 7px;
        margin-bottom: 8px;
    }

    .analytics-kpi {
        padding: 8px;
    }

    .analytics-kpi strong {
        font-size: 18px;
    }

    .analytics-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
    }

    .analytics-card-wide {
        grid-column: 1 / -1;
    }

    .analytics-card {
        padding: 9px;
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .analytics-card p {
        margin-bottom: 5px;
    }

    .insight-layout,
    .insight-chart-right .insight-layout {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
    }

    .analytics-narrative {
        padding: 7px 9px;
    }

    .analytics-narrative p {
        font-size: 9px;
        line-height: 1.3;
    }

    .student-narrative {
        margin-top: 4px;
    }

    .analytics-card-wide .chart-frame svg {
        max-height: 175px;
    }

    .grade-layout svg {
        max-width: 105px;
    }

    .task-stat-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 5px 8px;
    }

    .task-stat-row {
        gap: 5px;
        font-size: 9px;
    }



    html,
    body {
        width: 100%;
    }

    .print-compact .scores-grid th,
    .print-compact .scores-grid td {
        padding: 2px 3px;
        font-size: 10px;
    }

    .print-compact .scores-grid th.col-name,
    .print-compact .scores-grid td.col-name {
        width: calc(var(--print-col-name-width) * 0.9) !important;
        min-width: calc(var(--print-col-name-width) * 0.9) !important;
        max-width: calc(var(--print-col-name-width) * 0.9) !important;
    }

    .print-compact .scores-grid th.col-score,
    .print-compact .scores-grid td.col-score {
        width: calc(var(--print-col-score-width) * 0.9) !important;
        min-width: calc(var(--print-col-score-width) * 0.9) !important;
        max-width: calc(var(--print-col-score-width) * 0.9) !important;
    }

    .print-compact .scores-grid th.col-total,
    .print-compact .scores-grid td.col-total {
        width: calc(var(--print-col-total-width) * 0.9) !important;
        min-width: calc(var(--print-col-total-width) * 0.9) !important;
        max-width: calc(var(--print-col-total-width) * 0.9) !important;
    }

    .print-compact .scores-grid th.col-percent,
    .print-compact .scores-grid td.col-percent {
        width: calc(var(--print-col-percent-width) * 0.9) !important;
        min-width: calc(var(--print-col-percent-width) * 0.9) !important;
        max-width: calc(var(--print-col-percent-width) * 0.9) !important;
    }

    .print-compact .scores-grid td input.score-input,
    .print-compact .scores-grid td input.student-name-input {
        height: 16px;
        font-size: 11px;
        line-height: 16px;
    }

    main {
        width: 100%;
    }

    .excel-title {
        font-size: 13px;
        padding: 6px 10px;
        border-radius: 0;
    }

    .excel-school-info {
        font-size: 12px;
        padding: 4px 10px;
    }

    .excel-signatures {
        font-size: 12px;
        padding: 10px 14px;
        border-radius: 0;
    }

    table.scores-grid {
        font-size: 12px;
        width: 100%;
        max-width: 100%;
        table-layout: fixed;
    }

    .scores-grid th,
    .scores-grid td {
        padding: 3px 4px;
        height: var(--print-row-height, auto);
    }

    .scores-grid th.col-name,
    .scores-grid td.col-name {
        width: var(--print-col-name-width) !important;
        min-width: var(--print-col-name-width) !important;
        max-width: var(--print-col-name-width) !important;
        text-align: left;
    }

    .scores-grid th.col-score,
    .scores-grid td.col-score {
        width: var(--print-col-score-width) !important;
        min-width: var(--print-col-score-width) !important;
        max-width: var(--print-col-score-width) !important;
    }

    .scores-grid th.col-total,
    .scores-grid td.col-total {
        width: var(--print-col-total-width) !important;
        min-width: var(--print-col-total-width) !important;
        max-width: var(--print-col-total-width) !important;
    }

    .scores-grid th.col-percent,
    .scores-grid td.col-percent {
        width: var(--print-col-percent-width) !important;
        min-width: var(--print-col-percent-width) !important;
        max-width: var(--print-col-percent-width) !important;
    }

    .scores-grid td input.score-input,
    .scores-grid td input.student-name-input {
        height: var(--print-row-height, 18px);
        font-size: 12px;
        line-height: var(--print-row-height, 18px);
        border: none !important;
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        padding: 0 !important;
        white-space: normal !important;
        overflow: visible !important;
        text-overflow: clip !important;
    }

    .scores-grid th.col-score,
    .scores-grid td.col-score {
        white-space: normal !important;
        word-break: break-word !important;
    }

    .scores-grid .col-name {
        white-space: normal;
        overflow-wrap: anywhere;
    }

    .excel-signatures,
    .excel-school-info {
        page-break-inside: avoid;
        break-inside: avoid;
    }

    .print-scale-95 .scores-grid th,
    .print-scale-95 .scores-grid td,
    .print-scale-90 .scores-grid th,
    .print-scale-90 .scores-grid td,
    .print-scale-85 .scores-grid th,
    .print-scale-85 .scores-grid td,
    .print-scale-80 .scores-grid th,
    .print-scale-80 .scores-grid td,
    .print-scale-75 .scores-grid th,
    .print-scale-75 .scores-grid td {
        padding: 2px 3px;
        font-size: 10px;
    }

    .print-scale-85 .scores-grid td input.score-input,
    .print-scale-85 .scores-grid td input.student-name-input,
    .print-scale-80 .scores-grid td input.score-input,
    .print-scale-80 .scores-grid td input.student-name-input,
    .print-scale-75 .scores-grid td input.score-input,
    .print-scale-75 .scores-grid td input.student-name-input {
        height: 14px;
        font-size: 10px;
        line-height: 14px;
    }

    .scores-grid td input.score-input:focus,
    .scores-grid td input.student-name-input:focus {
        outline: none !important;
    }

    .scores-grid .col-name {
        white-space: normal;
        overflow: visible;
        text-overflow: unset;
        word-break: break-word;
        font-size: 12px;
    }

    .scores-grid .col-actions {
        display: none;
    }

    .fill-max-btn {
        display: none !important;
    }

    .scores-grid td.col-num {
        display: table-cell;
        padding: 2px 4px;
    }

    @page {
        margin: 8mm;
    }
}


@media (max-width: 768px) {
    :root {
        --col-num-width: 34px;
        --col-name-width: 125px;
        --col-total-width: 42px;
        --col-percent-width: 36px;
        --col-actions-width: 24px;
        --col-journal-width: 48px;
        --col-task-max-width: 55px;
    }

    body {
        padding: 4px 6px;
    }

    .preview-container {
        max-width: 100%;
    }

    .excel-sheet {
        max-width: 100%;
        margin: 0 auto 8px;
    }

    .top-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
    }

    .top-title {
        font-size: 14px;
    }

    .top-actions {
        justify-content: center;
        flex-wrap: wrap;
        gap: 4px;
    }

    .mode-switch {
        gap: 0;
    }

    .mode-chip {
        font-size: 14px;
        padding: 4px 8px;
    }

    .btn-sm {
        font-size: 14px;
        padding: 7px 10px;
    }

    .excel-title {
        font-size: 14px;
        padding: 8px 10px;
    }

    .excel-school-info {
        font-size: 14px;
        padding: 4px 10px;
        gap: 4px 10px;
    }

    .scores-grid {
        font-size: 14px;
    }

    .scores-grid th {
        font-size: 14px;
        padding: 4px 4px;
    }

    .scores-grid th.col-score {
        font-size: 14px;
    }

    .scores-grid .col-total,
    .scores-grid .col-percent {
        font-size: 11px;
    }

    .scores-grid td input.score-input,
    .scores-grid td input.student-name-input {
        height: 24px;
        font-size: 14px;
    }

    footer {
        flex-direction: column;
        align-items: stretch;
    }

    footer button {
        width: 100%;
        justify-content: center;
    }

    .btn-primary,
    .btn-outline {
        font-size: 14px;
        padding: 8px 16px;
    }

    .excel-signatures {
        font-size: 14px;
        padding: 10px 14px;
    }
}

@media (max-width: 480px) {
    :root {
        --col-num-width: 28px;
        --col-name-width: 100px;
        --col-total-width: 36px;
        --col-percent-width: 32px;
        --col-actions-width: 22px;
        --col-journal-width: 42px;
        --col-task-max-width: 42px;
    }

    body {
        padding: 2px 4px;
    }

    .excel-sheet {
        max-width: 100%;
        margin: 0 auto 6px;
    }

    .table-wrapper {
        max-width: 100vw;
    }

    .scores-grid {
        font-size: 14px;
    }

    .scores-grid th {
        font-size: 14px;
        padding: 2px 2px;
    }

    .scores-grid .col-total,
    .scores-grid .col-percent {
        font-size: 14px;
    }

    .scores-grid td input.score-input {
        font-size: 14px;
        height: 22px;
        padding: 0 2px;
    }

    .scores-grid td input.student-name-input {
        font-size: 10px;
        height: 22px;
        padding: 0 4px;
    }

    .mode-hint {
        font-size: 10px;
    }
}

@media print {
 body.analytics-ready:not(.print-table-only):not(.print-analysis-only) .analytics-sheet { break-before: page; page-break-before: always; }
 .scores-grid tr, .excel-signatures { break-inside: avoid; }
 .scores-grid thead { display: table-header-group; }
 .scores-grid tfoot { display: table-row-group; }
}

.print-control { position: relative; display: inline-flex; align-items: stretch; }
.print-control #printTopBtn { border-radius: 16px 0 0 16px; border-right: 0; }
.print-control .print-menu-toggle { border-radius: 0 16px 16px 0; padding: 5px 9px; }
.print-menu { position: absolute; right: 0; top: calc(100% + 6px); z-index: 100; min-width: 140px; padding: 5px; background: #fff; border: 1px solid #d5d9df; border-radius: 10px; box-shadow: 0 6px 20px #0002; }
.print-menu[hidden] { display: none; }
.print-menu button { display: block; width: 100%; padding: 9px 12px; border: 0; border-radius: 6px; background: transparent; color: #263238; text-align: left; font: inherit; cursor: pointer; }
.print-menu button:hover, .print-menu button:focus-visible { background: #efebe9; }
.print-menu button[hidden] { display: none; }
.print-menu { min-width: 220px; max-width: min(320px,90vw); max-height: 75vh; overflow-y: auto; }
.bqm-table-sheet { width: min(1050px,100%); margin-top: 22px; }
.bqm-report-table { width: 100%; table-layout: fixed; }
.bqm-report-table caption { padding: 10px; font-size: 13px; color: var(--on-surface-variant); background: var(--surface); }
.bqm-report-table :is(th,td) { border: 1px solid var(--grid); padding: 6px; text-align: center; }
.bqm-report-table thead tr:first-child th:nth-child(2) { text-align: left; }
.bqm-report-table tbody th { font-weight: 400; text-align: left; }
.bqm-report-table tfoot { font-weight: 700; background: var(--secondary); }
.bqm-result { background: var(--secondary); font-weight: 600; }
#bqmStudentRankings { margin-bottom: 16px; }
@media print {
  .binary-correct::after, .binary-wrong::after { content: none !important; display: none !important; }
  body[data-print-target] :is(#excelSheet,#analyticsSheet,#bqmTableSheet,#bqmAnalyticsSheet) { display: none !important; }
  body:not([data-print-target]) :is(#bqmTableSheet,#bqmAnalyticsSheet) { display: none !important; }
  body[data-print-sections~="table"] #excelSheet,
  body[data-print-sections~="analysis"] #analyticsSheet,
  body[data-print-sections~="bqm-table"] #bqmTableSheet,
  body[data-print-sections~="bqm-analysis"] #bqmAnalyticsSheet { display: block !important; }
  #bqmTableSheet { width: calc(100% - 2px); max-width: none; zoom: 1; margin: 0; break-before: auto; }
  #bqmAnalyticsSheet { break-before: auto; page-break-before: auto; }
  body[data-print-target="all"] #bqmTableSheet,
  body[data-print-target="all"] #bqmAnalyticsSheet,
  body[data-print-target="bqm-both"] #bqmAnalyticsSheet { break-before: page; page-break-before: always; }
  .bqm-report-table { width: 100% !important; font-size: 10px; }
  .bqm-report-table :is(th,td) { padding: 3px; height: auto; }
  .bqm-report-table caption { font-size: 10px; padding: 5px; }
  .bqm-report-table caption { display: none !important; }
  main { display: block; }
  body.analytics-ready .analytics-sheet { max-width: 194mm; break-inside: avoid; page-break-inside: avoid; }
  .analytics-card-wide.insight-row { grid-column: auto; }
  .analytics-card.insight-row .insight-layout { display: block; }
  .analytics-card.insight-row .analytics-narrative { margin-top: 5px; }
  #bqmNotice { display: none; }
}