* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #f4f6fb;
    color: #1f2937;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.title {
    font-size: 28px;
    margin: 0;
}

.nav {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.nav a {
    text-decoration: none;
    color: #0f172a;
    background: #e2e8f0;
    padding: 9px 13px;
    border-radius: 8px;
    font-weight: 600;
}

.nav a.active {
    background: #2563eb;
    color: #fff;
}

.card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
    padding: 18px;
    margin-bottom: 18px;
}

h2 {
    margin-top: 0;
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
}

input[type="text"],
input[type="password"],
textarea {
    width: 100%;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    padding: 10px;
    font-size: 14px;
}

textarea {
    min-height: 200px;
    resize: vertical;
}

button {
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 10px 14px;
    cursor: pointer;
    font-weight: 600;
}

button:hover {
    background: #1d4ed8;
}

.alert {
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 12px;
}

.alert.error {
    background: #fee2e2;
    color: #991b1b;
}

.alert.success {
    background: #dcfce7;
    color: #166534;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th,
td {
    border-bottom: 1px solid #e2e8f0;
    text-align: left;
    padding: 8px;
    white-space: nowrap;
}

th {
    background: #f8fafc;
}

.login-shell {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.login-card {
    width: 100%;
    max-width: 460px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
    padding: 24px;
}

.small {
    font-size: 12px;
    color: #475569;
}