:root {
    --bg: #f5f7fb;
    --panel: #ffffff;
    --text: #172033;
    --muted: #697386;
    --line: #dde3ee;
    --primary: #16846f;
    --primary-dark: #0f6858;
    --danger: #c23b3b;
    --sidebar: #202a36;
}

* {
    box-sizing: border-box;
}

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

.app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 250px 1fr;
}

.sidebar {
    background: var(--sidebar);
    color: #fff;
    padding: 22px 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 28px;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: var(--primary);
    font-size: 14px;
}

.menu {
    display: grid;
    gap: 8px;
}

.menu-link {
    width: 100%;
    border: 0;
    border-radius: 6px;
    padding: 12px 14px;
    text-align: left;
    color: #dfe7f2;
    background: transparent;
    cursor: pointer;
    font-size: 15px;
}

.menu-link.active,
.menu-link:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.main-content {
    padding: 24px;
    overflow-x: hidden;
}

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

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

.login-user {
    margin: 6px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.eyebrow {
    margin: 0 0 4px;
    color: var(--muted);
    font-size: 13px;
    text-transform: uppercase;
}

h1,
h2 {
    margin: 0;
}

h1 {
    font-size: 28px;
}

h2 {
    font-size: 18px;
    margin-bottom: 16px;
}

button {
    border: 0;
    border-radius: 6px;
    padding: 10px 14px;
    background: var(--primary);
    color: #fff;
    cursor: pointer;
    font-weight: 600;
}

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

button.secondary {
    color: var(--text);
    background: #e8edf5;
}

button.danger {
    background: var(--danger);
}

.refresh-btn {
    min-width: 90px;
}

.message {
    padding: 12px 14px;
    border-radius: 6px;
    margin-bottom: 16px;
    background: #e8f8f3;
    color: #0e624f;
    border: 1px solid #bce8dc;
}

.message.error {
    background: #fdecec;
    color: #922b2b;
    border-color: #f5bbbb;
}

.hidden,
.page {
    display: none !important;
}

.page.active {
    display: block !important;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(180px, 1fr));
    gap: 16px;
}

.dashboard-summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(170px, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.credit-summary {
    grid-template-columns: repeat(5, minmax(150px, 1fr));
}

.metric-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px;
    box-shadow: 0 10px 28px rgba(23, 32, 51, 0.06);
}

.metric-card span {
    display: block;
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 8px;
}

.metric-card strong {
    display: block;
    font-size: 28px;
}

.metric-card.income {
    border-left: 4px solid #16846f;
}

.metric-card.expense {
    border-left: 4px solid #c23b3b;
}

.metric-card.balance {
    border-left: 4px solid #3468c9;
}

.metric-card.neutral {
    border-left: 4px solid #7b8794;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(280px, 1fr));
    gap: 18px;
    margin-bottom: 18px;
}

.report-toolbar {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-end;
    margin-bottom: 18px;
}

.report-filters {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.report-filters label {
    margin-bottom: 0;
    min-width: 150px;
}

.panel-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.panel-heading h2 {
    margin-bottom: 0;
}

.recent-panel {
    margin-top: 0;
}

.stat-card,
.form-panel,
.table-panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 10px 28px rgba(23, 32, 51, 0.06);
}

.stat-card {
    padding: 22px;
}

.stat-card span {
    display: block;
    color: var(--muted);
    margin-bottom: 8px;
}

.stat-card strong {
    font-size: 34px;
}

.work-area {
    display: grid;
    grid-template-columns: minmax(280px, 360px) 1fr;
    gap: 18px;
    align-items: start;
}

.work-area.single-column {
    grid-template-columns: minmax(280px, 520px) 1fr;
}

.setting-layout {
    max-width: 1120px;
}

.setting-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(280px, 1fr));
    gap: 18px;
    align-items: start;
}

.setting-box {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 10px 28px rgba(23, 32, 51, 0.06);
    padding: 18px;
}

.setting-user-box,
.setting-actions {
    grid-column: 1 / -1;
}

.setting-box-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
}

.setting-box-heading h2 {
    margin-bottom: 0;
}

.setting-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    align-items: center;
}

.form-panel,
.table-panel {
    padding: 18px;
}

label {
    display: grid;
    gap: 7px;
    margin-bottom: 13px;
    font-size: 14px;
    font-weight: 600;
    color: var(--muted);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 9px;
}

.checkbox-label input {
    width: auto;
}

input,
select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 10px 11px;
    font-size: 15px;
    color: var(--text);
    background: #fff;
}

.form-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.form-note {
    margin: 12px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.table-wrap {
    width: 100%;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 680px;
}

.compact-table {
    min-width: 460px;
}

th,
td {
    padding: 12px 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    font-size: 14px;
}

th {
    color: var(--muted);
    background: #f8fafc;
}

.row-actions {
    display: flex;
    gap: 8px;
}

.type-pill {
    display: inline-block;
    border-radius: 999px;
    padding: 4px 9px;
    background: #eef2f7;
    color: var(--text);
    font-size: 12px;
    font-weight: 700;
}

.type-pill.expense {
    background: #fdecec;
    color: #922b2b;
}

.type-pill.income {
    background: #e8f8f3;
    color: #0e624f;
}

.type-pill.attendance {
    background: #edf4ff;
    color: #2456a6;
}

@media (max-width: 900px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .menu {
        grid-template-columns: repeat(2, minmax(140px, 1fr));
    }

    .work-area,
    .stats-grid,
    .dashboard-summary,
    .dashboard-grid,
    .setting-form {
        grid-template-columns: 1fr;
    }

    .setting-actions {
        justify-content: stretch;
    }

    .setting-actions button {
        flex: 1;
    }

    .report-toolbar {
        align-items: stretch;
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .main-content {
        padding: 16px;
    }

    .topbar {
        align-items: flex-start;
        flex-direction: column;
    }

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

.login-body {
    min-height: 100vh;
    background: linear-gradient(135deg, #eaf6f2 0%, #f7f8fb 45%, #eef2f7 100%);
}

.login-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 20px;
}

.login-panel {
    width: min(100%, 420px);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 18px 45px rgba(23, 32, 51, 0.12);
    padding: 28px;
}

.login-brand {
    color: var(--text);
    margin-bottom: 18px;
}

.login-panel h1 {
    font-size: 26px;
    margin-bottom: 8px;
}

.login-subtitle {
    color: var(--muted);
    margin: 0 0 20px;
}

.login-button {
    width: 100%;
    margin-top: 4px;
}