:root {
    --orange: #ff6a1a;
    --orange-dark: #cc5100;
    --bg: #0d0d0f;
    --surface: #17171b;
    --surface-light: #232328;
    --text: #f2f2f2;
    --text-dim: #9a9a9f;
    --border: #2c2c31;
    --danger: #e5484d;
    --success: #30a46c;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

a { color: var(--orange); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.sidebar {
    width: 220px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 24px 16px;
    flex-shrink: 0;
}

.sidebar h1 {
    font-size: 18px;
    color: var(--orange);
    margin: 0 0 24px;
}

.sidebar nav a {
    display: block;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--text);
    margin-bottom: 4px;
}

.sidebar nav a:hover, .sidebar nav a.active {
    background: var(--surface-light);
    text-decoration: none;
}

.main {
    flex: 1;
    padding: 32px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.topbar h2 { margin: 0; }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
}

.stat-card .value { font-size: 28px; font-weight: 700; color: var(--orange); }
.stat-card .label { color: var(--text-dim); font-size: 13px; margin-top: 4px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--text-dim); font-weight: 600; text-transform: uppercase; font-size: 11px; letter-spacing: 0.05em; }
tr:hover { background: var(--surface-light); }

.btn {
    display: inline-block;
    padding: 9px 16px;
    border-radius: 8px;
    border: none;
    background: var(--orange);
    color: white;
    font-weight: 600;
    cursor: pointer;
    font-size: 14px;
}
.btn:hover { background: var(--orange-dark); text-decoration: none; }
.btn.secondary { background: var(--surface-light); border: 1px solid var(--border); }
.btn.danger { background: var(--danger); }
.btn.small { padding: 5px 10px; font-size: 12px; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--text-dim); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}
.badge.active { background: rgba(48,164,108,0.15); color: var(--success); }
.badge.inactive, .badge.suspended { background: rgba(229,72,77,0.15); color: var(--danger); }
.badge.expired { background: rgba(229,72,77,0.15); color: var(--danger); }
.badge.maintenance { background: rgba(255,106,26,0.15); color: var(--orange); }

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}
.alert.success { background: rgba(48,164,108,0.12); color: var(--success); border: 1px solid rgba(48,164,108,0.3); }
.alert.error { background: rgba(229,72,77,0.12); color: var(--danger); border: 1px solid rgba(229,72,77,0.3); }

.login-page {
    display: flex; align-items: center; justify-content: center; min-height: 100vh;
}
.login-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 380px;
}
.login-box h1 { color: var(--orange); text-align: center; margin-bottom: 24px; }

.mac-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 4px 8px;
    font-family: monospace;
    font-size: 12px;
    margin: 2px;
}
.mac-tag button {
    background: none; border: none; color: var(--danger); cursor: pointer; font-weight: bold; padding: 0;
}