:root {
    --navy: #17324d;
    --navy-light: #23476d;
    --navy-dark: #0f2133;
    --gold: #c69b43;
    --gold-light: #fef8ec;
    --bg: #f4f6f8;
    --ink: #17212b;
    --muted: #667085;
    --line: #e3e8ef;
    --white: #ffffff;
    --success: #12b76a;
    --success-bg: #ecfdf3;
    --danger: #f04438;
    --danger-bg: #fef3f2;
    --warning: #f79009;
    --warning-bg: #fffaeb;
    --info: #0ba5ec;
    --info-bg: #f0f9ff;
    --radius: 10px;
    --shadow: 0 2px 8px rgba(23, 49, 77, 0.06);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans Bengali", Arial, sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.5;
}

/* Header */
header {
    background: var(--navy);
    color: var(--white);
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    border-bottom: 2px solid var(--gold);
}

.brand {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 0.5px;
}

.sub {
    font-size: 12px;
    color: #cad8e6;
    margin-top: 2px;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
}

.badge-role {
    background: rgba(198, 155, 67, 0.2);
    border: 1px solid var(--gold);
    color: #fff;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
}

.btn-logout {
    color: #ffd2d2;
    text-decoration: none;
    padding: 5px 10px;
    border: 1px solid rgba(255, 100, 100, 0.4);
    border-radius: 6px;
    transition: 0.2s;
}

.btn-logout:hover {
    background: rgba(255, 100, 100, 0.2);
    color: #fff;
}

/* Layout */
.layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    min-height: calc(100vh - 72px);
}

/* Sidebar Navigation */
nav.sidebar {
    background: var(--white);
    border-right: 1px solid var(--line);
    padding: 16px 12px;
}

nav.sidebar .nav-group-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 10px 12px 4px;
}

nav.sidebar a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    color: #344054;
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
    transition: 0.15s;
}

nav.sidebar a:hover,
nav.sidebar a.active {
    background: #edf3f8;
    color: var(--navy);
    font-weight: 700;
}

nav.sidebar a.active {
    border-left: 3px solid var(--navy);
}

/* Main Content Area */
main {
    padding: 24px 30px;
    max-width: 1440px;
    width: 100%;
    margin: 0 auto;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

h1 {
    font-size: 24px;
    margin: 0 0 4px;
    color: var(--navy);
}

.lead {
    color: var(--muted);
    margin: 0;
    font-size: 13.5px;
}

/* KPI Cards */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(23, 49, 77, 0.1);
}

.klabel {
    color: var(--muted);
    font-size: 12.5px;
    font-weight: 600;
}

.kvalue {
    font-size: 23px;
    font-weight: 800;
    margin-top: 8px;
    color: var(--navy);
}

.ksub {
    font-size: 11.5px;
    color: var(--muted);
    margin-top: 4px;
}

/* Panels */
.panel {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    margin-bottom: 22px;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
    border-bottom: 1px solid #f1f4f8;
    padding-bottom: 10px;
}

.panel-header h2 {
    font-size: 17px;
    margin: 0;
    color: var(--navy);
}

/* Forms */
.formgrid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
    margin: 14px 0;
}

label {
    font-size: 13px;
    font-weight: 600;
    color: #344054;
    display: block;
}

label input,
label select,
label textarea,
input[type="text"],
input[type="number"],
input[type="date"],
input[type="password"],
select,
textarea {
    font: inherit;
    display: block;
    width: 100%;
    margin-top: 5px;
    padding: 9px 12px;
    border: 1px solid #cfd7e2;
    border-radius: 7px;
    background: var(--white);
    color: var(--ink);
    font-size: 13.5px;
    transition: border-color 0.15s;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--navy);
    box-shadow: 0 0 0 3px rgba(23, 50, 77, 0.1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font: inherit;
    font-size: 13.5px;
    font-weight: 600;
    padding: 9px 15px;
    border-radius: 7px;
    cursor: pointer;
    text-decoration: none;
    border: 1px solid transparent;
    transition: 0.15s ease;
}

.btn-primary {
    background: var(--navy);
    color: var(--white);
    border-color: var(--navy);
}

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

.btn-secondary {
    background: var(--white);
    color: #344054;
    border-color: #cfd7e2;
}

.btn-secondary:hover {
    background: #f8fafc;
    border-color: #98a2b3;
}

.btn-success {
    background: var(--success);
    color: var(--white);
    border-color: var(--success);
}

.btn-success:hover {
    background: #0e9355;
}

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

.btn-danger:hover {
    background: #d92d20;
}

.btn-warning {
    background: var(--warning);
    color: var(--white);
    border-color: var(--warning);
}

.btn-sm {
    padding: 5px 9px;
    font-size: 12px;
}

/* Tables */
.tablewrap {
    overflow-x: auto;
    width: 100%;
}

table {
    border-collapse: collapse;
    width: 100%;
    font-size: 13px;
    text-align: left;
}

th, td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--line);
}

th {
    background: #f9fafb;
    color: #475467;
    font-weight: 700;
    white-space: nowrap;
}

tr:hover td {
    background: #fcfdfe;
}

.text-right {
    text-align: right;
}

.text-center {
    text-align: center;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 11.5px;
    font-weight: 600;
}

.badge-pending {
    background: var(--warning-bg);
    color: #b54708;
    border: 1px solid #fedf89;
}

.badge-approved {
    background: var(--success-bg);
    color: #027a48;
    border: 1px solid #a6f4c5;
}

.badge-rejected {
    background: var(--danger-bg);
    color: #b42318;
    border: 1px solid #fecdca;
}

.badge-reversed {
    background: #f2f4f7;
    color: #475467;
    border: 1px solid #d0d5dd;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 18px;
    font-size: 13.5px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background: var(--success-bg);
    border: 1px solid #a6f4c5;
    color: #027a48;
}

.alert-danger {
    background: var(--danger-bg);
    border: 1px solid #fecdca;
    color: #b42318;
}

.alert-warning {
    background: var(--warning-bg);
    border: 1px solid #fedf89;
    color: #b54708;
}

.alert-info {
    background: var(--info-bg);
    border: 1px solid #b9e6fe;
    color: #026aa2;
}

.notice {
    padding: 12px 14px;
    border-radius: 8px;
    background: #fff8e8;
    border: 1px solid #f6e0b5;
    color: #7b5b1e;
    font-size: 13px;
    margin-bottom: 18px;
}

/* Empty state */
.empty {
    padding: 30px;
    text-align: center;
    color: var(--muted);
    font-size: 14px;
}

/* Print Styles */
@media print {
    header, nav.sidebar, .btn, .no-print {
        display: none !important;
    }
    .layout {
        display: block !important;
    }
    main {
        padding: 0 !important;
        max-width: 100% !important;
    }
    .panel, .card {
        border: 1px solid #ccc !important;
        box-shadow: none !important;
    }
}

/* Responsive */
@media (max-width: 900px) {
    .layout {
        grid-template-columns: 1fr;
    }
    nav.sidebar {
        display: flex;
        overflow-x: auto;
        border-right: none;
        border-bottom: 1px solid var(--line);
        gap: 6px;
        padding: 10px;
    }
    nav.sidebar a {
        white-space: nowrap;
        margin-bottom: 0;
    }
    nav.sidebar .nav-group-title {
        display: none;
    }
    main {
        padding: 16px;
    }
}