:root {
    --bg: #f5f6fa;
    --bg-card: #ffffff;
    --bg-input: #f0f1f5;
    --bg-hover: #e8e9f0;
    --border: #d8dae5;
    --text: #1a1d27;
    --text-dim: #6b7085;
    --primary: #4f5bd5;
    --primary-hover: #3d49c4;
    --danger: #dc3545;
    --danger-hover: #c82333;
    --success: #28a745;
    --warning: #f5a623;
    --radius: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
[hidden] { display: none !important; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* Авторизация */
.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 40px;
    width: 100%;
    max-width: 380px;
    box-shadow: var(--shadow);
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
    color: var(--primary);
}

.login-logo h1 {
    font-size: 20px;
    margin-top: 12px;
    color: var(--text);
}

.login-error {
    background: rgba(229, 72, 77, .12);
    color: var(--danger);
    padding: 8px 12px;
    border-radius: var(--radius);
    font-size: 13px;
    margin-bottom: 12px;
}

/* Формы */
.form-group {
    margin-bottom: 16px;
    flex: 1;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-dim);
    margin-bottom: 6px;
}

input, select, textarea {
    width: 100%;
    padding: 10px 12px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 14px;
    transition: border-color .15s;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-row {
    display: flex;
    gap: 12px;
}

.form-row.triple {
    display: flex;
    gap: 12px;
    align-items: end;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 20px;
}

/* Кнопки */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    cursor: pointer;
    transition: background .15s, opacity .15s;
    font-weight: 500;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

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

.btn-ghost {
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--border);
}

.btn-ghost:hover { background: var(--bg-hover); color: var(--text); }

.btn-danger {
    background: var(--danger);
    color: #fff;
}

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

.btn-block { width: 100%; }

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

.btn-icon {
    padding: 4px 8px;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-dim);
    border-radius: 4px;
    font-size: 16px;
}

.btn-icon:hover { background: var(--bg-hover); color: var(--text); }
.btn-icon.danger:hover { color: var(--danger); }

/* Шапка */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
}

.header-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.admin-name {
    font-size: 13px;
    color: var(--text-dim);
}

/* Табы */
.tabs {
    display: flex;
    gap: 0;
    padding: 0 24px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.tab {
    padding: 12px 24px;
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: color .15s, border-color .15s;
}

.tab:hover { color: var(--text); }

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
    padding: 20px 24px;
}

.tab-content.active { display: block; }

.sub-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
    border-radius: var(--radius) var(--radius) 0 0;
}

.sub-tab {
    padding: 10px 20px;
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: color .15s, border-color .15s;
}

.sub-tab:hover { color: var(--text); }

.sub-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.subtab-content {
    display: none;
}

.subtab-content.active { display: block; }

/* Тулбар */
.toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.search-box {
    margin-left: auto;
}

.search-box input {
    width: 240px;
    padding: 8px 12px;
}

.date-label {
    font-size: 14px;
    color: var(--text-dim);
}

.date-input {
    width: 180px;
    padding: 8px 12px;
}

.month-select, .year-select {
    width: auto;
    padding: 8px 12px;
}

/* Таблицы */
.table-wrapper {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    white-space: nowrap;
}

.data-table th {
    background: var(--bg-input);
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-dim);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1;
}

.data-table .sub-header th {
    font-weight: 400;
    font-size: 11px;
    padding: 4px 12px;
    color: var(--text-dim);
}

.data-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
}

.data-table tbody tr:nth-child(even) {
    background: #f7f8fb;
}

.data-table tbody tr:hover {
    background: var(--bg-hover);
}

.time-block tbody tr:nth-child(even) {
    background: #f7f8fb;
}

.data-table.compact th { padding: 8px 10px; }
.data-table.compact td { padding: 6px 10px; }

.total-row {
    font-weight: 700;
    background: var(--bg-input);
}

.total-row td { border-top: 2px solid var(--border); }

.cell-cash { color: var(--success); }
.cell-card { color: var(--primary); }
.cell-expense { color: var(--danger); }

.actions-cell {
    display: flex;
    gap: 4px;
}

/* Расписание */
.schedule-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.time-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.time-block-header {
    padding: 10px 16px;
    background: var(--bg-input);
    font-weight: 600;
    font-size: 15px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
}

.time-badge {
    background: var(--primary);
    color: #fff;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 13px;
}

.slot-count {
    font-size: 12px;
    color: var(--text-dim);
    font-weight: 400;
}

.time-block table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.time-block th {
    padding: 8px 12px;
    text-align: center;
    color: var(--text-dim);
    font-weight: 500;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
}

.time-block td {
    padding: 6px 12px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    border-right: 1px solid var(--border);
    min-width: 140px;
}

.time-block td:last-child { border-right: none; }

.time-block td.slot-num {
    width: 40px;
    min-width: 40px;
    color: var(--text-dim);
    font-size: 11px;
}

.time-block td.filled {
    color: var(--text);
    font-weight: 500;
}

.time-block td.empty {
    color: var(--border);
}

/* Сводные */
.summary-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: start;
}

.summary-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.summary-section h3 {
    padding: 12px 16px;
    font-size: 15px;
    background: var(--bg-input);
    border-bottom: 1px solid var(--border);
}

.summary-side {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Модальное окно */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.35);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 20px;
}

#confirm-overlay {
    z-index: 200;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 100%;
    max-width: 580px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow);
}

.modal-sm { max-width: 380px; }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 { font-size: 16px; }

.modal-close {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 22px;
    cursor: pointer;
    padding: 0 4px;
}

.modal-close:hover { color: var(--text); }

.modal-body { padding: 20px; }

.training-fields {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-top: 8px;
}

.training-fields legend {
    padding: 0 8px;
    font-size: 13px;
    color: var(--text-dim);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-input);
    border-bottom: 1px solid var(--border);
}

.section-header h3 {
    padding: 0;
    background: none;
    border: none;
    font-size: 15px;
}

.year-select-inline {
    width: auto;
    padding: 4px 8px;
    font-size: 13px;
}

/* Ячейки расписания */
.time-block td.clickable {
    cursor: pointer;
    transition: background .15s;
}

.time-block td.clickable:hover {
    background: var(--bg-hover);
}

.time-block td.clickable.empty:hover::after {
    content: '+';
    color: var(--primary);
    font-weight: 600;
}

.time-block td.clickable.empty:hover {
    color: transparent;
}

/* Поиск в расписании */
.search-results {
    max-height: 260px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.search-results:empty {
    display: none;
}

.search-result-item {
    padding: 10px 14px;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    transition: background .1s;
    font-size: 14px;
}

.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: var(--bg-hover); }

.search-result-item .sr-name { font-weight: 600; }
.search-result-item .sr-info { font-size: 12px; color: var(--text-dim); margin-top: 2px; }

.days-checkboxes {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.day-cb {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    transition: all .15s;
    user-select: none;
}

.day-cb input { display: none; }

.day-cb:has(input:checked) {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.sr-create {
    color: var(--primary);
    font-weight: 600;
}

.search-no-results {
    padding: 12px 14px;
    color: var(--text-dim);
    font-size: 13px;
}

/* Пагинация */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-top: 1px solid var(--border);
}

.pag-buttons {
    display: flex;
    gap: 4px;
}

.pagination button {
    padding: 6px 12px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
}

.pagination button:hover { background: var(--bg-hover); }
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination button:disabled { opacity: .4; cursor: default; }

.pag-size {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-dim);
}

.pag-size-select {
    width: auto;
    padding: 4px 8px;
    font-size: 13px;
}

.autocomplete-wrap { position: relative; }

.dropdown-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 50;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow);
}

.client-name-link {
    color: var(--primary);
    cursor: pointer;
    text-decoration: none;
    font-weight: 700;
}
.client-name-link:hover { text-decoration: underline; }

#confirm-overlay { z-index: 200; }
#person-modal-overlay { z-index: 150; }

/* Адаптивность */
@media (max-width: 900px) {
    .summary-layout {
        grid-template-columns: 1fr;
    }
    .tabs { overflow-x: auto; }
    .toolbar { flex-wrap: wrap; }
    .search-box { margin-left: 0; }
    .search-box input { width: 100%; }
}