:root {
    --primary: #1557B5;
    --secondary: #E51B23;
    --bg: #F5F5F5;
    --card: #FFFFFF;
    --text: #111111;
    --muted: #6b7280;
    --border: #e5e7eb;
    --success-bg: #e8f7ec;
    --success-border: #64b978;
    --success-text: #166534;
    --shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
    --radius: 12px;
}

* {
    box-sizing: border-box;
}

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

.wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--primary);
    color: #fff;
    padding: 18px;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
}

.brand {
    text-align: center;
    margin-bottom: 25px;
}

.brand h2 {
    margin: 0;
    font-size: 23px;
    font-weight: 800;
}

.brand p {
    margin: 4px 0 0;
    font-size: 13px;
    opacity: 0.9;
}

.sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar li {
    margin-bottom: 9px;
}

.sidebar a {
    display: block;
    color: #fff;
    text-decoration: none;
    padding: 12px 14px;
    border-radius: 7px;
    font-weight: 700;
    transition: 0.2s;
}

.sidebar a:hover,
.sidebar a.active {
    background: var(--secondary);
}

.sidebar hr {
    border: 0;
    border-top: 1px solid rgba(255,255,255,0.25);
    margin: 22px 0;
}

.content {
    flex: 1;
    margin-left: 260px;
    padding: 18px 24px;
}

.topbar {
    background: var(--card);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    padding: 18px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 22px;
}

.title {
    font-size: 20px;
    font-weight: 800;
}

.subtitle {
    font-size: 13px;
    color: var(--muted);
    margin-top: 4px;
}

.badge {
    display: inline-block;
    padding: 7px 13px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
    color: #fff;
}

.badge-red {
    background: var(--secondary);
}

.badge-blue {
    background: var(--primary);
}

.alert-success {
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    color: var(--success-text);
    padding: 13px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.alert-error {
    background: #fdeaea;
    border: 1px solid #e57373;
    color: #991b1b;
    padding: 13px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
}

h1 {
    font-size: 30px;
    margin: 0 0 22px;
}

.dashboard-grid,
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    margin-bottom: 28px;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 22px;
}

.card h3 {
    margin: 0 0 16px;
    font-size: 18px;
}

.card .value {
    font-size: 28px;
    font-weight: 900;
}

.card ul {
    margin: 0;
    padding-left: 22px;
}

.card li {
    margin-bottom: 5px;
}

.btn,
button {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 10px 16px;
    border-radius: 7px;
    text-decoration: none;
    display: inline-block;
    font-weight: 700;
    cursor: pointer;
}

.btn:hover,
button:hover {
    opacity: 0.9;
}

.btn-red,
.btn-danger {
    background: var(--secondary);
}

.btn-secondary {
    background: #6b7280;
}

input,
select,
textarea {
    width: 100%;
    padding: 11px 12px;
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 14px;
    margin-top: 5px;
}

label {
    font-weight: 700;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

th {
    background: #f1f5f9;
    font-weight: 800;
}

tr:hover {
    background: #f9fafb;
}

.login-page {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary), #0b3f88);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 25px;
}

.login-box {
    width: 420px;
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 35px rgba(0,0,0,0.25);
}

.login-box .brand h1 {
    color: var(--primary);
    text-align: center;
    margin-bottom: 5px;
}

.login-box .brand p {
    text-align: center;
    color: var(--muted);
    margin-bottom: 25px;
}

.footer {
    text-align: center;
    color: var(--muted);
    margin-top: 30px;
    font-size: 13px;
}

@media (max-width: 1000px) {
    .dashboard-grid,
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 760px) {
    .sidebar {
        position: relative;
        width: 100%;
    }

    .wrapper {
        flex-direction: column;
    }

    .content {
        margin-left: 0;
    }

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

    .topbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}