* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #111827;
    color: #e5e7eb;
}

a {
    color: #f97316;
    text-decoration: none;
}

.login-body {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: #1f2937;
    border: 1px solid #374151;
    border-radius: 18px;
    width: 360px;
    padding: 28px;
    box-shadow: 0 15px 40px rgba(0,0,0,.35);
}

.login-card h1 {
    margin-top: 0;
}

label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: #cbd5e1;
}

input, select, textarea {
    width: 100%;
    background: #111827;
    border: 1px solid #374151;
    color: #e5e7eb;
    border-radius: 10px;
    padding: 10px 12px;
    margin-bottom: 14px;
}

textarea {
    min-height: 80px;
}

button {
    background: #f97316;
    border: 0;
    color: #111827;
    font-weight: bold;
    border-radius: 10px;
    padding: 11px 16px;
    cursor: pointer;
}

button:hover {
    opacity: .9;
}

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

.sidebar {
    width: 230px;
    background: #020617;
    border-right: 1px solid #1f2937;
    padding: 22px;
}

.brand {
    font-weight: bold;
    font-size: 20px;
    margin-bottom: 28px;
    color: #f97316;
}

.sidebar nav a {
    display: block;
    color: #cbd5e1;
    padding: 11px 10px;
    border-radius: 10px;
    margin-bottom: 6px;
}

.sidebar nav a:hover {
    background: #1f2937;
    color: #fff;
}

.main {
    flex: 1;
    padding: 28px;
}

h1 {
    margin-top: 0;
}

.cards {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
    margin-bottom: 22px;
}

.card, .panel {
    background: #1f2937;
    border: 1px solid #374151;
    border-radius: 18px;
    padding: 18px;
}

.card span {
    display: block;
    color: #94a3b8;
    font-size: 13px;
    margin-bottom: 8px;
}

.card strong {
    font-size: 24px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.panel {
    margin-bottom: 18px;
    overflow-x: auto;
}

.panel h2 {
    margin-top: 0;
    font-size: 18px;
}

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

th, td {
    text-align: left;
    padding: 10px;
    border-bottom: 1px solid #374151;
}

th {
    color: #94a3b8;
    font-weight: normal;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.span-2 {
    grid-column: span 2;
}

.alert {
    padding: 12px;
    border-radius: 10px;
    margin-bottom: 14px;
}

.alert.error {
    background: #7f1d1d;
    color: #fecaca;
}

.alert.success {
    background: #064e3b;
    color: #bbf7d0;
}

.muted {
    color: #94a3b8;
}

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

    .sidebar {
        width: 190px;
    }
}