* {
    box-sizing: border-box;
}

:root {
    --navy: #0B1628;
    --slate-navy: #17263C;
    --gold: #D8A62E;
    --blue: #2F80ED;

    --bg: #F5F7FA;
    --surface: #FFFFFF;

    --text: #111827;
    --muted: #667085;
    --border: #D9E0E8;

    --success: #16A36A;
    --warning: #E5A423;
    --danger: #DC3F45;
}

html,
body {
    margin: 0;
    min-height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
    min-height: 100vh;
}

/* Header */

.topbar {
    height: 72px;
    display: flex;
    align-items: center;
    padding: 0 32px;

    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.brand {
    color: var(--navy);
    font-size: 21px;
    font-weight: 700;
    letter-spacing: -0.2px;
}

/* Layout */

.layout {
    display: flex;
    min-height: calc(100vh - 72px);
}

/* Sidebar */

.sidebar {
    width: 250px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 26px 16px;
}

.sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.sidebar a {
    position: relative;
    display: block;

    color: #475467;
    text-decoration: none;

    padding: 11px 14px;
    border-radius: 6px;

    font-size: 14px;
    font-weight: 600;
}

.sidebar a:hover {
    background: #F1F4F8;
    color: var(--navy);
}

.sidebar a.active {
    background: #EDF4FE;
    color: var(--blue);
}

.sidebar a.active::before {
    content: "";
    position: absolute;

    left: -16px;
    top: 8px;
    bottom: 8px;

    width: 4px;
    background: var(--blue);
    border-radius: 0 3px 3px 0;
}

/* Main content */

.content {
    flex: 1;
    width: 100%;
    max-width: 1500px;

    padding: 40px 48px 64px;
}

h1 {
    margin: 0 0 6px;

    color: var(--navy);

    font-size: 30px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

h2 {
    margin: 0 0 8px;

    color: var(--slate-navy);

    font-size: 18px;
    font-weight: 650;
}

.subtitle {
    margin: 0 0 30px;
    color: var(--muted);
    font-size: 15px;
}

/* Dashboard cards */

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 18px;
}

.card {
    display: block;

    min-height: 140px;
    padding: 24px;

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;

    color: inherit;
    text-decoration: none;

    box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);

    transition:
        border-color 0.15s ease,
        box-shadow 0.15s ease,
        transform 0.15s ease;
}

.card:hover {
    border-color: #B7CAE5;
    box-shadow: 0 4px 12px rgba(16, 24, 40, 0.08);
    transform: translateY(-1px);
}

.card h2 {
    color: var(--navy);
}

.card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.55;
}

/* Panels */

.panel {
    padding: 22px;

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;

    box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
}

/* Page headers */

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;

    gap: 24px;
    margin-bottom: 28px;
}

/* Buttons */

.button,
button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 40px;
    padding: 9px 16px;

    border: 1px solid var(--blue);
    border-radius: 6px;

    background: var(--blue);
    color: #FFFFFF;

    font-family: inherit;
    font-size: 14px;
    font-weight: 650;

    text-decoration: none;
    cursor: pointer;
}

.button:hover,
button:hover {
    background: #246FD0;
    border-color: #246FD0;
}

/* Tables */

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
}

thead {
    background: #F8FAFC;
}

th {
    text-align: left;

    padding: 12px 14px;

    border-bottom: 1px solid var(--border);

    color: #475467;

    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

td {
    padding: 13px 14px;

    border-bottom: 1px solid #EAECF0;

    color: #344054;
    font-size: 14px;
}

tbody tr:hover {
    background: #FAFBFC;
}

/* Forms */

input,
select,
textarea {
    width: 100%;

    padding: 10px 12px;

    background: #FFFFFF;
    color: var(--text);

    border: 1px solid #C9D2DF;
    border-radius: 6px;

    font: inherit;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(47, 128, 237, 0.12);
}

label {
    display: block;
    margin-bottom: 6px;

    color: #344054;
    font-size: 14px;
    font-weight: 600;
}

/* Accent */

.accent-gold {
    color: var(--gold);
}

.status-success {
    color: var(--success);
}

.status-warning {
    color: var(--warning);
}

.status-danger {
    color: var(--danger);
}

/* Responsive */

@media (max-width: 900px) {
    .sidebar {
        width: 210px;
    }

    .content {
        padding: 30px 24px 48px;
    }
}

@media (max-width: 700px) {
    .layout {
        display: block;
    }

    .sidebar {
        width: 100%;
        border-right: 0;
        border-bottom: 1px solid var(--border);
    }

    .sidebar nav {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .sidebar a.active::before {
        display: none;
    }

    .content {
        padding: 24px 18px 40px;
    }

    .page-header {
        flex-direction: column;
    }
}