:root {
    --bg: #f5f6fa;
    --card-bg: #ffffff;
    --text: #1f2430;
    --muted: #6b7280;
    --primary: #3457d5;
    --primary-dark: #2540a8;
    --danger: #d93636;
    --border: #e3e5ec;
    --success-bg: #e6f6ea;
    --success-text: #1e7a34;
    --error-bg: #fdeaea;
    --error-text: #b02a2a;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
    padding: 14px 24px;
    border-bottom: 1px solid var(--border);
}

.brand {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text);
    text-decoration: none;
}

.topbar nav a {
    margin-left: 16px;
    color: var(--primary);
    text-decoration: none;
    font-size: 0.95rem;
}

.topbar nav a:hover { text-decoration: underline; }

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 24px 20px 60px;
}

h1 { font-size: 1.6rem; margin-bottom: 8px; }
h2 { font-size: 1.2rem; margin-top: 28px; }

.muted { color: var(--muted); font-size: 0.9rem; }

.card-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px;
}

.card h2 { margin-top: 0; font-size: 1.1rem; }

.btn {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: 6px;
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: none;
    margin-top: 10px;
}

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

.btn-secondary {
    background: #fff;
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover { background: #f0f1f5; }

.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #b02a2a; }

.form-page { max-width: 480px; margin: 0 auto; }

.form {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 16px;
}

.form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.9rem;
    color: var(--muted);
}

.form input,
.form textarea {
    font-size: 1rem;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: inherit;
    color: var(--text);
}

.flash-list { margin-bottom: 16px; }

.flash {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.flash-error { background: var(--error-bg); color: var(--error-text); }
.flash-success { background: var(--success-bg); color: var(--success-text); }

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
    background: var(--card-bg);
}

.table th, .table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    font-size: 0.92rem;
}

.table-compact th, .table-compact td { padding: 6px 8px; font-size: 0.85rem; }

.badge {
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 0.78rem;
}

.badge-active { background: var(--success-bg); color: var(--success-text); }
.badge-inactive { background: #eee; color: var(--muted); }

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.page-header-actions { display: flex; gap: 10px; }

.hint-box {
    margin-top: 28px;
    padding: 16px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.hint-box ul { padding-left: 20px; }

.share-box {
    margin: 16px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.share-box input {
    flex: 1;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: monospace;
}

.actions-row { display: flex; gap: 10px; flex-wrap: wrap; margin: 16px 0; }
.actions-row form { margin: 0; }

.question-preview-list { padding-left: 20px; }
.question-preview-list li { margin-bottom: 14px; }
.question-preview-list ul { margin: 4px 0 0; padding-left: 18px; }
.correct-option { color: var(--success-text); font-weight: 600; }
.wrong-option { color: var(--danger); font-weight: 600; }

.grade-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 14px 0 6px;
}

.grade-tab {
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text);
    text-decoration: none;
    font-size: 0.88rem;
}

.grade-tab:hover { background: #f0f2fa; }
.grade-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.badge-grade {
    display: inline-block;
    background: #eef1fb;
    color: var(--primary-dark);
    margin-bottom: 6px;
}

.checkbox-label {
    flex-direction: row !important;
    align-items: flex-start;
    gap: 10px !important;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.checkbox-label span { color: var(--text); font-size: 0.88rem; }

.form-inline {
    flex-direction: row;
    flex-wrap: wrap;
}

.form-inline input[type="email"],
.form-inline input[type="text"] {
    flex: 1;
    min-width: 220px;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.95rem;
}

.email-box {
    margin-top: 24px;
    padding: 16px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    text-align: left;
}

.email-box h2 { margin-top: 0; font-size: 1.05rem; }

.info-table th {
    width: 220px;
    color: var(--muted);
    font-weight: 600;
}

.attempt-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    position: sticky;
    top: 0;
    background: var(--bg);
    padding: 10px 0;
    z-index: 5;
}

.timer {
    font-size: 1.6rem;
    font-weight: 700;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 16px;
    min-width: 90px;
    text-align: center;
}

.timer-warning { color: var(--danger); border-color: var(--danger); }

.question-list { list-style: none; padding: 0; margin-top: 12px; }

.question-block {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 14px;
}

.question-text { font-weight: 600; margin-bottom: 10px; }

.options { display: flex; flex-direction: column; gap: 8px; }

.option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: 6px;
    cursor: pointer;
}

.option:hover { background: #f0f2fa; }

.result-page { max-width: 480px; margin: 40px auto; text-align: center; }

.score-box {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
    margin-top: 20px;
}

.score-number { font-size: 2.2rem; font-weight: 700; }
.score-percent { font-size: 1.3rem; color: var(--primary); margin-top: 6px; }

.footer {
    text-align: center;
    color: var(--muted);
    font-size: 0.85rem;
    padding: 20px;
}

@media (max-width: 600px) {
    .topbar { flex-direction: column; gap: 8px; align-items: flex-start; }
}

/* Журнал учителя */

.table-scroll {
    overflow-x: auto;
    margin-top: 12px;
}

.journal-form { display: inline-block; min-width: 100%; }

.journal-table { white-space: nowrap; }

.journal-table th, .journal-table td { text-align: center; }

.journal-name-col {
    text-align: left !important;
    min-width: 200px;
    position: sticky;
    left: 0;
    background: var(--card-bg);
}

.journal-name-col input {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: inherit;
}

.journal-final-col { font-weight: 700; color: var(--primary-dark); background: #eef1fb; }

.grade-cell {
    width: 34px;
    text-align: center;
    padding: 6px 2px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.95rem;
}

.col-delete-btn {
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    padding: 2px 4px;
    margin-left: 4px;
    border-radius: 4px;
}

.col-delete-btn:hover { background: var(--error-bg); color: var(--danger); }

.month-nav {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 14px 0 6px;
    flex-wrap: wrap;
}

.month-picker-form {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

.month-label {
    font-weight: 600;
    min-width: 140px;
    text-align: center;
}

.month-picker-form input[type="month"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    width: 100%;
    cursor: pointer;
}

.col-day { display: block; font-weight: 700; }
.col-weekday { display: block; font-size: 0.72rem; color: var(--muted); font-weight: 400; }

.weekend-col { background: var(--surface-2, #f0f1f5); }
th.weekend-col { color: var(--muted); }

.btn-disabled {
    background: #f0f1f5;
    color: var(--muted);
    cursor: default;
    border: 1px solid var(--border);
}

.row-stale td { background: #fff6e0; }
.row-stale .journal-name-col { background: #fff6e0; }

.row-risk td { background: #fde3e3; }
.row-risk .journal-name-col { background: #fde3e3; }

.stale-mark {
    color: #b8860b;
    margin-left: 6px;
    cursor: help;
}

.risk-mark {
    color: var(--danger);
    margin-left: 6px;
    cursor: help;
}

.watch-panel p { margin: 6px 0; }

.watch-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 6px;
}

.watch-dot-stale { background: #f5cf47; }
.watch-dot-risk { background: var(--danger); }

.subject-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.subject-badge-form { margin: 0; }

.subject-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 0;
}

.subject-badge .col-delete-btn { margin: 0; }