:root {
    --bg: #0b1220;
    --panel: #121a2b;
    --panel-2: #182235;
    --text: #eef4ff;
    --muted: #9fb0cc;
    --line: rgba(255,255,255,0.08);
    --primary: #2563eb;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #d97706;
    --radius: 18px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: linear-gradient(180deg, #08101d 0%, #0b1220 100%);
    color: var(--text);
}

a {
    color: inherit;
    text-decoration: none;
}

.layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: rgba(10, 16, 30, 0.94);
    border-right: 1px solid var(--line);
    padding: 24px;
}

.brand {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 24px;
}

.userbox {
    display: grid;
    gap: 4px;
    margin-bottom: 24px;
    padding: 14px;
    background: var(--panel);
    border-radius: 14px;
    border: 1px solid var(--line);
}

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

.nav {
    display: grid;
    gap: 10px;
}

.nav a {
    padding: 12px 14px;
    border-radius: 12px;
    color: var(--muted);
    background: transparent;
    transition: 0.2s ease;
}

.nav a:hover,
.nav a.active {
    background: var(--panel);
    color: var(--text);
}

.content {
    padding: 28px;
}

.content-full {
    max-width: 520px;
    margin: 0 auto;
    width: 100%;
    padding-top: 60px;
}

.topbar {
    margin-bottom: 22px;
}

.card {
    background: rgba(18, 26, 43, 0.96);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.18);
    margin-bottom: 18px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.kpi-label {
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 8px;
}

.kpi-value {
    font-size: 30px;
    font-weight: 700;
}

.alert {
    padding: 14px 16px;
    border-radius: 12px;
    margin-bottom: 18px;
}

.alert-success {
    background: rgba(22, 163, 74, 0.15);
    border: 1px solid rgba(22, 163, 74, 0.35);
}

.alert-danger {
    background: rgba(220, 38, 38, 0.15);
    border: 1px solid rgba(220, 38, 38, 0.35);
}

.form-grid {
    display: grid;
    gap: 14px;
}

label {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-size: 14px;
}

input,
button,
select,
textarea {
    font: inherit;
}

input,
select,
textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: var(--panel-2);
    color: var(--text);
}

button {
    padding: 12px 16px;
    border: 0;
    border-radius: 12px;
    background: var(--primary);
    color: #fff;
    cursor: pointer;
    font-weight: 600;
}

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

table {
    width: 100%;
    border-collapse: collapse;
}

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

th {
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
}

.muted {
    color: var(--muted);
}

@media (max-width: 980px) {
    .layout {
        grid-template-columns: 1fr;
    }

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

    .grid-3 {
        grid-template-columns: 1fr;
    }
}