:root {
    --primary: #1d00b8;
    --primary-light: #f0edff;
    --bg: #f7f8fc;
    --card: #ffffff;
    --text: #1f2430;
    --muted: #7d8495;
    --border: #e7e9f2;
    --green: #25a55b;
    --green-bg: #e7f8ee;
    --red: #e54848;
    --red-bg: #ffe9e9;
    --yellow: #a87500;
    --yellow-bg: #fff3cc;
    --shadow: 0 20px 50px rgba(20, 20, 60, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.app {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background: #ffffff;
    border-right: 1px solid var(--border);
    padding: 24px 18px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
}

.brand img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    border-radius: 50%;
}

.brand span {
    display: block;
    font-size: 13px;
    color: var(--muted);
}

.brand strong {
    display: block;
    font-size: 22px;
    color: var(--primary);
}

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

.menu a {
    text-decoration: none;
    color: #4d5364;
    padding: 14px 16px;
    border-radius: 14px;
    font-weight: 500;
}

.menu a.active,
.menu a:hover {
    background: var(--primary);
    color: white;
}

.main {
    flex: 1;
    padding: 28px;
}

.topbar {
    background: white;
    border-radius: 24px;
    padding: 24px 28px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.topbar h1 {
    margin: 0;
    font-size: 30px;
}

.topbar p {
    margin: 6px 0 0;
    color: var(--muted);
}

.user-box {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--primary-light);
    padding: 12px 18px;
    border-radius: 18px;
}

.user-box strong {
    color: var(--primary);
}

.stats {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 18px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card);
    border-radius: 22px;
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.stat-card span {
    color: var(--muted);
    font-size: 14px;
}

.stat-card strong {
    display: block;
    margin-top: 12px;
    font-size: 30px;
}

.stat-card.warning strong {
    color: var(--yellow);
}

.stat-card.danger strong {
    color: var(--red);
}

.grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

.panel {
    background: white;
    border-radius: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    padding: 24px;
}

.panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 20px;
}

.panel-header h2 {
    margin: 0;
}

.panel-header p {
    margin: 6px 0 0;
    color: var(--muted);
}

.panel-header a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
}

th,
td {
    border-bottom: 1px solid var(--border);
    padding: 14px 12px;
    text-align: left;
    font-size: 14px;
}

th {
    color: var(--muted);
    font-weight: 600;
}

td small {
    display: block;
    margin-top: 4px;
    color: var(--muted);
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 10px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

.badge.success {
    background: var(--green-bg);
    color: var(--green);
}

.badge.danger {
    background: var(--red-bg);
    color: var(--red);
}

.badge.warning {
    background: var(--yellow-bg);
    color: var(--yellow);
}

.badge.neutral {
    background: #f0f1f6;
    color: #555b6d;
}

.recalc-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.recalc-item {
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: #fff;
}

.recalc-item strong {
    display: block;
    font-size: 16px;
    margin-bottom: 4px;
}

.recalc-item span {
    display: block;
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 8px;
}

.recalc-item b {
    color: var(--red);
    font-size: 18px;
}

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

.action-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 18px;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: var(--primary-light);
    text-decoration: none;
    color: var(--text);
    transition: 0.2s;
}

.action-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.action-card span {
    font-size: 28px;
}

.action-card strong {
    color: var(--primary);
}

.payment-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.payment-item {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 12px;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.payment-item:last-child {
    border-bottom: none;
}

.payment-item strong {
    display: block;
}

.payment-item small {
    color: var(--muted);
}

.page-card {
    background: white;
    border-radius: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    padding: 24px;
}

.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.toolbar h2 {
    margin: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    border-radius: 14px;
    border: none;
    background: var(--primary);
    color: white;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
}

.btn.secondary {
    background: var(--primary-light);
    color: var(--primary);
}

.children-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.child-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.child-card h3 {
    margin: 0 0 8px;
}

.child-card p {
    margin: 4px 0;
    color: var(--muted);
    font-size: 14px;
}

.docs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

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

.form-field label {
    font-weight: 600;
}

.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 13px 14px;
    font: inherit;
    outline: none;
    background: white;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    border-color: var(--primary);
}

.full {
    grid-column: 1 / -1;
}

.mobile-header {
    display: none;
}

@media (max-width: 1200px) {
    .stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid {
        grid-template-columns: 1fr;
    }

    .children-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .app {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        padding: 16px;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .brand {
        margin-bottom: 16px;
    }

    .menu {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 6px;
    }

    .menu a {
        white-space: nowrap;
    }

    .main {
        padding: 16px;
    }

    .topbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        border-radius: 20px;
    }

    .stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .children-grid {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .payment-item {
        grid-template-columns: 1fr;
        gap: 8px;
    }
}

@media (max-width: 560px) {
    .stats {
        grid-template-columns: 1fr;
    }

    .topbar h1 {
        font-size: 24px;
    }

    .panel,
    .page-card,
    .stat-card {
        border-radius: 18px;
        padding: 18px;
    }

    .actions-grid {
        grid-template-columns: 1fr;
    }

    .brand img {
        width: 52px;
        height: 52px;
    }

    .brand strong {
        font-size: 18px;
    }
}

.pay {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 18px;
}

.pay.yes {
    background: var(--green-bg);
    color: var(--green);
}

.pay.no {
    background: var(--red-bg);
    color: var(--red);
}

.badge.muted {
    background: #f0f1f6;
    color: #555b6d;
}

.primary-btn {
    width: 100%;
    margin-top: 22px;
    padding: 15px 18px;
    border: none;
    border-radius: 16px;
    background: var(--primary);
    color: #ffffff;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
}

.primary-btn:hover {
    opacity: 0.9;
}

.quick {
    margin-top: 24px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.quick button {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 22px;
    box-shadow: var(--shadow);
    color: var(--primary);
    font-weight: 700;
    cursor: pointer;
    font-size: 15px;
}

.quick button:hover {
    background: var(--primary-light);
}

@media (max-width: 900px) {
    .quick {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .quick {
        grid-template-columns: 1fr;
    }
}

.empty-page {
    min-height: 420px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    text-align: center;
}

.empty-page h2 {
    color: var(--text);
    margin: 12px 0 8px;
    font-size: 28px;
}

.empty-page p {
    max-width: 520px;
    line-height: 1.6;
    margin: 0;
}

.empty-icon {
    width: 72px;
    height: 72px;
    border-radius: 24px;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 34px;
    margin-bottom: 8px;
}

.checkbox-field label {
    flex-direction: row;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--text);
}

.checkbox-field input {
    width: 18px;
    height: 18px;
}

.table-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.mini-link {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.mini-link:hover {
    text-decoration: underline;
}

.danger-text {
    color: var(--red);
}

.danger-btn {
    background: var(--red);
    color: white;
}

.form-actions {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.delete-card {
    max-width: 720px;
}

.delete-card h2 {
    margin-top: 0;
}

.delete-card p {
    color: var(--muted);
    line-height: 1.6;
}

.danger-note {
    padding: 16px;
    border-radius: 16px;
    background: var(--red-bg);
    color: var(--red) !important;
}

.groups-layout {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.trainer-group-card {
    background: white;
    border-radius: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    padding: 24px;
}

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

.trainer-group-header h2 {
    margin: 0;
    font-size: 24px;
    color: var(--primary);
}

.trainer-group-header p {
    margin: 6px 0 0;
    color: var(--muted);
}

@media (max-width: 700px) {
    .trainer-group-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

.card-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

.filter-card {
    margin-bottom: 24px;
}

.filters-form {
    display: grid;
    grid-template-columns: repeat(5, minmax(140px, 1fr)) auto;
    gap: 16px;
    align-items: end;
}

.filter-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.pagination {
    margin-top: 28px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.page-link {
    padding: 10px 14px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
    text-decoration: none;
    font-weight: 700;
}

.page-current {
    color: var(--muted);
    font-weight: 600;
}

@media (max-width: 1200px) {
    .filters-form {
        grid-template-columns: repeat(2, 1fr);
    }

    .filter-actions {
        grid-column: 1 / -1;
    }
}

@media (max-width: 700px) {
    .filters-form {
        grid-template-columns: 1fr;
    }

    .filter-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-actions .btn {
        width: 100%;
    }
}

.inline-form {
    display: flex;
    align-items: end;
    gap: 16px;
    flex-wrap: wrap;
}

.inline-form .form-field {
    min-width: 260px;
}

.attendance-form select {
    min-width: 135px;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 9px 10px;
    background: white;
    font: inherit;
    outline: none;
}

.attendance-form select:focus {
    border-color: var(--primary);
}

@media (max-width: 700px) {
    .inline-form {
        flex-direction: column;
        align-items: stretch;
    }

    .inline-form .form-field {
        min-width: 100%;
    }
}

.payment-toggle-form {
    display: inline-flex;
}

.pay-button {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 18px;
    cursor: pointer;
}

.pay-button.yes {
    background: var(--green-bg);
    color: var(--green);
}

.pay-button.no {
    background: var(--red-bg);
    color: var(--red);
}

.pay-button:hover {
    transform: scale(1.06);
}

.dates-card {
    margin-bottom: 24px;
}

.date-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.date-chip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 12px 14px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: var(--primary-light);
}

.date-chip strong {
    color: var(--primary);
}

.date-chip div {
    display: flex;
    gap: 10px;
}

.date-mini-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.date-mini-list span {
    padding: 6px 9px;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
}

.payment-groups {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.payment-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-end;
}

.payment-prices {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 18px;
    padding: 14px;
    border-radius: 16px;
    background: var(--primary-light);
    color: var(--muted);
}

.payment-prices strong {
    color: var(--primary);
}

@media (max-width: 700px) {
    .payment-summary {
        justify-content: flex-start;
    }
}

.dashboard-columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 24px;
}

.mini-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mini-item {
    padding: 14px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: #ffffff;
    display: flex;
    justify-content: space-between;
    gap: 14px;
    align-items: flex-start;
}

.mini-item strong {
    display: block;
    margin-bottom: 4px;
}

.mini-item span {
    color: var(--muted);
    font-size: 13px;
}

.muted-text {
    color: var(--muted);
    margin: 0;
}

@media (max-width: 1200px) {
    .dashboard-columns {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 700px) {
    .mini-item {
        flex-direction: column;
    }
}

.mini-item-link {
    text-decoration: none;
    color: inherit;
    transition: 0.2s;
}

.mini-item-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}

.show-all-link {
    display: inline-flex;
    margin-top: 12px;
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
}

.show-all-link:hover {
    text-decoration: underline;
}

.checkbox-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: linear-gradient(180deg, #ffffff 0%, var(--primary-light) 100%);
    box-shadow: inset 0 0 0 1px rgba(29, 0, 184, 0.04);
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 48px;
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: #ffffff;
    cursor: pointer;
    font-weight: 700;
    transition: 0.2s;
}

.checkbox-row:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(29, 0, 184, 0.08);
}

.checkbox-row input {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    accent-color: var(--primary);
}

.checkbox-row span {
    font-size: 14px;
    color: var(--text);
    line-height: 1.35;
}

.checkbox-row:has(input:checked) {
    border-color: var(--primary);
    background: var(--primary-light);
}

@media (max-width: 700px) {
    .checkbox-list {
        grid-template-columns: 1fr;
    }
}

.field-hint {
    display: block;
    margin-top: 10px;
    color: var(--muted);
    font-size: 13px;
}

.group-checkbox-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: #f7f5ff;
    margin-top: 8px;
}

.group-checkbox-card {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: flex-start !important;
    gap: 12px !important;

    padding: 13px 14px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: #ffffff;

    cursor: pointer;
    font-weight: 700;
    line-height: 1.3;
    transition: 0.2s;
}

.group-checkbox-card input {
    width: 18px !important;
    height: 18px !important;
    margin: 0 !important;
    flex: 0 0 auto !important;
    accent-color: var(--primary);
}

.group-checkbox-card span {
    color: var(--text);
    font-size: 14px;
}

.group-checkbox-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 18px rgba(29, 0, 184, 0.08);
    transform: translateY(-1px);
}

.group-checkbox-card:has(input:checked) {
    border-color: var(--primary);
    background: #f0edff;
}

.field-hint {
    display: block;
    margin-top: 10px;
    color: var(--muted);
    font-size: 13px;
}

@media (max-width: 700px) {
    .group-checkbox-list {
        grid-template-columns: 1fr;
    }
}

.form-field .group-checkbox-card input[type="checkbox"] {
    width: 18px !important;
    height: 18px !important;
    min-width: 18px !important;
    max-width: 18px !important;
    margin: 0 !important;
    padding: 0 !important;
    flex: 0 0 18px !important;
    accent-color: var(--primary);
}

.group-checkbox-list {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 12px !important;
    padding: 16px !important;
    border: 1px solid var(--border) !important;
    border-radius: 18px !important;
    background: #f7f5ff !important;
    margin-top: 8px !important;
}

.group-checkbox-card {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: flex-start !important;
    gap: 12px !important;
    padding: 13px 14px !important;
    border-radius: 14px !important;
    border: 1px solid var(--border) !important;
    background: #ffffff !important;
    cursor: pointer !important;
    font-weight: 700 !important;
    line-height: 1.3 !important;
    transition: 0.2s !important;
}

.group-checkbox-card span {
    color: var(--text) !important;
    font-size: 14px !important;
}

.group-checkbox-card:hover {
    border-color: var(--primary) !important;
    box-shadow: 0 8px 18px rgba(29, 0, 184, 0.08) !important;
    transform: translateY(-1px) !important;
}

.group-checkbox-card:has(input:checked) {
    border-color: var(--primary) !important;
    background: #f0edff !important;
}

@media (max-width: 700px) {
    .group-checkbox-list {
        grid-template-columns: 1fr !important;
    }
}

.trainer-salary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 16px;
    padding: 14px;
    border-radius: 16px;
    background: var(--primary-light);
}

.trainer-salary div {
    padding: 10px;
    border-radius: 12px;
    background: #ffffff;
}

.trainer-salary span {
    display: block;
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 6px;
}

.trainer-salary strong {
    color: var(--primary);
    font-size: 16px;
}

@media (max-width: 700px) {
    .trainer-salary {
        grid-template-columns: 1fr;
    }
}

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background:
        radial-gradient(circle at top left, rgba(29, 0, 184, 0.14), transparent 35%),
        var(--bg);
}

.login-card {
    width: 100%;
    max-width: 430px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 32px;
    box-shadow: var(--shadow);
}

.login-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 24px;
    text-align: center;
}

.login-brand img {
    width: 84px;
    height: 84px;
    object-fit: contain;
    border-radius: 50%;
    margin-bottom: 12px;
}

.login-brand span {
    color: var(--muted);
    font-size: 14px;
}

.login-brand strong {
    color: var(--primary);
    font-size: 28px;
}

.login-card h1 {
    margin: 0;
    text-align: center;
}

.login-card p {
    margin: 8px 0 24px;
    color: var(--muted);
    text-align: center;
}

.login-error {
    padding: 12px 14px;
    border-radius: 14px;
    background: var(--red-bg);
    color: var(--red);
    font-weight: 700;
    margin-bottom: 16px;
}

.login-btn {
    width: 100%;
    margin-top: 18px;
}

.logout-form {
    margin-top: 12px;
}

.logout-form button {
    width: 100%;
    border: none;
    padding: 14px 16px;
    border-radius: 14px;
    background: var(--red-bg);
    color: var(--red);
    font-weight: 700;
    cursor: pointer;
    text-align: left;
}

.logout-form button:hover {
    background: var(--red);
    color: #ffffff;
}