:root {
    --app-bg: #F5F6F8;
    --app-card: #FFFFFF;
    --app-text: #111827;
    --app-text-2: #1F2937;
    --app-muted: #6B7280;
    --app-border: #E5E7EB;
    --app-teal: #00BFA6;
    --app-green: #10B981;
    --app-red: #EF4444;
    --app-yellow: #F59E0B;
    --app-blue: #2563EB;
    --app-shadow: 0 12px 32px rgba(17, 24, 39, 0.07);
}

body {
    background: var(--app-bg);
    color: var(--app-text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
    text-decoration: none;
}

.app-navbar {
    border-bottom: 1px solid var(--app-border);
    box-shadow: 0 4px 20px rgba(17, 24, 39, 0.04);
}

.navbar-brand {
    color: var(--app-text);
}

.brand-mark {
    align-items: center;
    background: rgba(0, 191, 166, 0.12);
    border-radius: 8px;
    color: var(--app-teal);
    display: inline-flex;
    height: 36px;
    justify-content: center;
    width: 36px;
}

.navbar .nav-link {
    border-radius: 8px;
    color: var(--app-muted);
    font-size: 0.92rem;
    font-weight: 500;
    margin: 0 2px;
    padding: 0.55rem 0.75rem;
    white-space: nowrap;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
    background: rgba(0, 191, 166, 0.1);
    color: var(--app-text);
}

.navbar-nav {
    align-items: center;
}

.navbar .dropdown-menu {
    border: 1px solid var(--app-border);
    border-radius: 8px;
    box-shadow: var(--app-shadow);
    padding: 0.45rem;
}

.navbar .dropdown-item {
    border-radius: 8px;
    color: var(--app-text-2);
    font-size: 0.92rem;
    font-weight: 500;
    padding: 0.55rem 0.75rem;
}

.navbar .dropdown-item:hover {
    background: rgba(0, 191, 166, 0.1);
    color: var(--app-text);
}

.btn-user {
    align-items: center;
    border: 1px solid var(--app-border);
    border-radius: 10px;
    display: inline-flex;
    gap: 0.5rem;
}

.app-main {
    min-height: calc(100vh - 64px);
}

.page-header {
    align-items: flex-start;
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.page-header h1 {
    color: var(--app-text);
    font-size: clamp(1.45rem, 2vw, 2rem);
    font-weight: 700;
    letter-spacing: 0;
    margin: 0;
}

.page-header p {
    color: var(--app-muted);
    margin: 0.35rem 0 0;
}

.app-card {
    background: var(--app-card);
    border: 1px solid var(--app-border);
    border-radius: 8px;
    box-shadow: var(--app-shadow);
    padding: 1.25rem;
}

.app-card-title {
    color: var(--app-text-2);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.btn {
    border-radius: 8px;
    font-weight: 600;
}

.btn-primary {
    background: var(--app-teal);
    border-color: var(--app-teal);
}

.btn-primary:hover,
.btn-primary:focus {
    background: #00a991;
    border-color: #00a991;
}

.btn-outline-primary {
    border-color: rgba(0, 191, 166, 0.45);
    color: #008f7d;
}

.btn-outline-primary:hover {
    background: var(--app-teal);
    border-color: var(--app-teal);
}

.filter-bar {
    align-items: end;
    background: var(--app-card);
    border: 1px solid var(--app-border);
    border-radius: 8px;
    box-shadow: var(--app-shadow);
    display: grid;
    gap: 1rem;
    grid-template-columns: minmax(120px, 160px) minmax(120px, 160px) minmax(220px, 1fr) auto;
    margin-bottom: 1.25rem;
    padding: 1rem;
}

.form-label {
    color: var(--app-text-2);
    font-size: 0.84rem;
    font-weight: 700;
}

.form-control,
.form-select,
.input-group-text {
    border-color: var(--app-border);
    border-radius: 8px;
}

.input-group > .form-control {
    border-bottom-left-radius: 0;
    border-top-left-radius: 0;
}

.input-group-text {
    background: #F9FAFB;
    color: var(--app-muted);
}

.dashboard-note {
    background: rgba(0, 191, 166, 0.08);
    border: 1px solid rgba(0, 191, 166, 0.18);
    border-radius: 8px;
    color: #04786b;
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
    padding: 0.85rem 1rem;
}

.metric-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-card {
    align-items: center;
    background: var(--app-card);
    border: 1px solid var(--app-border);
    border-radius: 8px;
    box-shadow: var(--app-shadow);
    display: flex;
    gap: 0.9rem;
    min-height: 104px;
    padding: 1rem;
}

.metric-icon {
    align-items: center;
    background: rgba(0, 191, 166, 0.12);
    border-radius: 8px;
    color: var(--app-teal);
    display: flex;
    flex: 0 0 42px;
    font-size: 1.25rem;
    height: 42px;
    justify-content: center;
    width: 42px;
}

.metric-title {
    color: var(--app-muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
}

.metric-value {
    color: var(--app-text);
    font-size: clamp(1.05rem, 1.4vw, 1.35rem);
    font-weight: 800;
    line-height: 1.15;
    word-break: break-word;
}

.metric-success .metric-icon { background: rgba(16, 185, 129, 0.12); color: var(--app-green); }
.metric-danger .metric-icon { background: rgba(239, 68, 68, 0.12); color: var(--app-red); }
.metric-warning .metric-icon { background: rgba(245, 158, 11, 0.12); color: var(--app-yellow); }
.metric-blue .metric-icon { background: rgba(37, 99, 235, 0.1); color: var(--app-blue); }

.dashboard-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: 2fr 1fr;
}

.chart-card {
    min-height: 330px;
}

.chart-card canvas {
    max-height: 270px;
}

.cash-overview {
    align-items: center;
    display: grid;
    gap: 1.25rem;
    grid-template-columns: minmax(220px, 1fr) minmax(220px, 0.9fr);
    min-height: 270px;
}

.cash-overview-chart {
    height: 250px;
    min-width: 0;
}

.cash-overview-chart canvas {
    max-height: 250px;
}

.cash-overview-summary {
    display: grid;
    gap: 0.75rem;
}

.cash-overview-row,
.cash-overview-balance {
    background: #F9FAFB;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    display: grid;
    gap: 0.25rem;
    padding: 0.9rem;
}

.cash-overview-row span,
.cash-overview-balance span {
    align-items: center;
    color: var(--app-muted);
    display: inline-flex;
    font-size: 0.8rem;
    font-weight: 800;
    gap: 0.45rem;
    text-transform: uppercase;
}

.cash-overview-row strong,
.cash-overview-balance strong {
    color: var(--app-text);
    font-size: 1.15rem;
    line-height: 1.15;
}

.cash-overview-row small {
    color: var(--app-muted);
    font-weight: 700;
}

.cash-dot {
    border-radius: 999px;
    display: inline-block;
    height: 10px;
    width: 10px;
}

.cash-dot-income {
    background: var(--app-green);
}

.cash-dot-expense {
    background: var(--app-red);
}

.cash-overview-balance.is-positive {
    background: rgba(16, 185, 129, 0.08);
    border-color: rgba(16, 185, 129, 0.22);
}

.cash-overview-balance.is-negative {
    background: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.22);
}

.cash-overview-balance.is-positive strong {
    color: #047857;
}

.cash-overview-balance.is-negative strong {
    color: #B91C1C;
}

.chart-card-lg {
    grid-row: span 2;
    min-height: 676px;
}

.chart-card-lg canvas {
    max-height: 590px;
}

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

.app-table {
    margin-bottom: 0;
}

.app-table thead th {
    border-bottom: 1px solid var(--app-border);
    color: var(--app-muted);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.app-table tbody td {
    border-color: var(--app-border);
    color: var(--app-text-2);
    font-size: 0.92rem;
    vertical-align: middle;
}

.table-actions {
    display: inline-flex;
    gap: 0.35rem;
    justify-content: flex-end;
}

.table-actions form {
    display: inline-flex;
}

.badge {
    border-radius: 999px;
    font-weight: 800;
    padding: 0.42rem 0.62rem;
}

.badge-soft-success { background: rgba(16, 185, 129, 0.12); color: #047857; }
.badge-soft-danger { background: rgba(239, 68, 68, 0.12); color: #B91C1C; }
.badge-soft-warning { background: rgba(245, 158, 11, 0.14); color: #92400E; }
.badge-soft-secondary { background: #F3F4F6; color: #4B5563; }
.badge-soft-teal { background: rgba(0, 191, 166, 0.13); color: #04786b; }
.badge-soft-info { background: rgba(37, 99, 235, 0.1); color: #1D4ED8; }

.empty-state {
    color: var(--app-muted);
    padding: 2rem;
    text-align: center;
}

.empty-state i {
    color: #9CA3AF;
    font-size: 2rem;
}

.empty-state h3 {
    color: var(--app-text-2);
    font-size: 1rem;
    font-weight: 700;
    margin-top: 0.75rem;
}

.detail-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.detail-item {
    background: #F9FAFB;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    padding: 0.9rem;
}

.detail-item span {
    color: var(--app-muted);
    display: block;
    font-size: 0.78rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    text-transform: uppercase;
}

.detail-item strong {
    color: var(--app-text);
    font-size: 1rem;
}

.settlement-form {
    display: grid;
    gap: 0.4rem;
    grid-template-columns: 120px 150px minmax(160px, 1fr) auto;
}

.section-title {
    color: var(--app-text);
    font-size: 1rem;
    font-weight: 800;
}

.member-row + .member-row {
    margin-top: 0.6rem;
}

.month-control-stack {
    display: grid;
    gap: 1rem;
}

.month-control-group-header {
    align-items: center;
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.month-control-group-header h2 {
    color: var(--app-text);
    font-size: 1.15rem;
    font-weight: 800;
    margin: 0;
}

.month-control-group-header p {
    color: var(--app-muted);
    margin: 0.25rem 0 0;
}

.month-control-total {
    color: var(--app-text);
    font-size: 1.2rem;
    font-weight: 800;
}

.month-control-table th,
.month-control-table td {
    white-space: nowrap;
}

.month-control-table td:nth-child(3) {
    min-width: 220px;
    white-space: normal;
}

.month-control-action {
    align-items: center;
    display: grid;
    gap: 0.4rem;
    grid-template-columns: 132px 112px minmax(220px, 1fr) minmax(145px, auto) auto;
    min-width: 720px;
}

.month-control-no-bank {
    justify-self: start;
    white-space: nowrap;
}

.report-chart-card {
    min-height: 340px;
}

.report-chart-card canvas {
    height: 280px !important;
    max-height: 280px;
}

.login-page {
    background:
        linear-gradient(135deg, rgba(0, 191, 166, 0.14), rgba(37, 99, 235, 0.08)),
        var(--app-bg);
}

.login-shell {
    align-items: center;
    display: flex;
    min-height: 100vh;
    padding: 1rem;
    justify-content: center;
}

.login-card {
    background: var(--app-card);
    border: 1px solid var(--app-border);
    border-radius: 8px;
    box-shadow: var(--app-shadow);
    max-width: 430px;
    padding: 2rem;
    width: 100%;
}

.login-card h1 {
    font-size: 1.55rem;
    font-weight: 800;
    margin-bottom: 0.25rem;
}

.login-card p {
    color: var(--app-muted);
    margin-bottom: 1.5rem;
}

@media (max-width: 1199px) {
    .metric-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .chart-card-lg,
    .chart-card-wide {
        grid-column: auto;
        grid-row: auto;
        min-height: 330px;
    }

    .chart-card-lg canvas {
        max-height: 270px;
    }

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

@media (max-width: 767px) {
    .page-header {
        display: block;
    }

    .page-header .btn {
        margin-top: 1rem;
        width: 100%;
    }

    .filter-bar,
    .metric-grid,
    .detail-grid,
    .settlement-form,
    .cash-overview,
    .month-control-action {
        grid-template-columns: 1fr;
    }

    .month-control-action {
        min-width: 260px;
    }

    .app-card {
        padding: 1rem;
    }

    .metric-card {
        min-height: 92px;
    }
}