:root {
    --bg: #0f1520;
    --panel: #161e2c;
    --panel-border: #253045;
    --text: #e7ecf5;
    --text-dim: #8b98ad;
    --accent: #4f8cff;
    --accent-dim: #2e4a80;
    --good: #35c76e;
    --fair: #d8c93c;
    --poor: #e08a3c;
    --critical: #e0503c;
    --unknown: #5c6a80;
    --radius: 8px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}

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

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

.sidebar {
    width: 210px;
    flex-shrink: 0;
    background: var(--panel);
    border-right: 1px solid var(--panel-border);
    padding: 16px 0;
    display: flex;
    flex-direction: column;
}

.sidebar .brand {
    font-weight: 700;
    font-size: 16px;
    padding: 0 16px 16px;
    border-bottom: 1px solid var(--panel-border);
    margin-bottom: 8px;
}

.sidebar nav a {
    display: block;
    padding: 10px 16px;
    color: var(--text-dim);
    border-left: 3px solid transparent;
}

.sidebar nav a:hover { color: var(--text); text-decoration: none; background: rgba(255,255,255,0.03); }
.sidebar nav a.active { color: var(--text); border-left-color: var(--accent); background: rgba(79,140,255,0.08); }

.sidebar .user-box {
    margin-top: auto;
    padding: 12px 16px;
    border-top: 1px solid var(--panel-border);
    font-size: 12px;
    color: var(--text-dim);
}

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.topbar {
    padding: 14px 24px;
    border-bottom: 1px solid var(--panel-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.topbar h1 { font-size: 18px; margin: 0; }

.content { padding: 24px; flex: 1; overflow: auto; }

.panel {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
}

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--panel-border); white-space: nowrap; }
th { color: var(--text-dim); font-weight: 600; position: sticky; top: 0; background: var(--panel); }
tr:hover td { background: rgba(255,255,255,0.02); }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge-good { background: rgba(53,199,110,0.15); color: var(--good); }
.badge-fair { background: rgba(216,201,60,0.15); color: var(--fair); }
.badge-poor { background: rgba(224,138,60,0.15); color: var(--poor); }
.badge-critical { background: rgba(224,80,60,0.15); color: var(--critical); }
.badge-unknown { background: rgba(92,106,128,0.15); color: var(--unknown); }
.badge-admin { background: rgba(79,140,255,0.15); color: var(--accent); }
.badge-viewer { background: rgba(255,255,255,0.06); color: var(--text-dim); }

.btn {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
}
.btn:hover { background: #3f78e0; text-decoration: none; }
.btn-secondary { background: transparent; border: 1px solid var(--panel-border); color: var(--text); }
.btn-danger { background: var(--critical); }
.btn-sm { padding: 4px 10px; font-size: 12px; }

input[type=text], input[type=password], input[type=email], select {
    background: #0c1119;
    border: 1px solid var(--panel-border);
    color: var(--text);
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
}

.form-row { margin-bottom: 14px; }
.form-row label { display: block; margin-bottom: 6px; color: var(--text-dim); font-size: 12px; }

.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; align-items: end; }

.error-box {
    background: rgba(224,80,60,0.12);
    border: 1px solid var(--critical);
    color: #ff8f7d;
    padding: 10px 14px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 13px;
}
.notice-box {
    background: rgba(53,199,110,0.1);
    border: 1px solid var(--good);
    color: var(--good);
    padding: 10px 14px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 13px;
}

.login-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-card {
    width: 340px;
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 28px;
}
.login-card h1 { font-size: 18px; margin: 0 0 4px; }
.login-card p.sub { color: var(--text-dim); margin: 0 0 20px; font-size: 13px; }
.login-card input { width: 100%; margin-bottom: 12px; }
.login-card .btn { width: 100%; margin-top: 6px; }

#map { width: 100%; height: calc(100vh - 140px); border-radius: var(--radius); overflow: hidden; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat-tile { background: var(--panel); border: 1px solid var(--panel-border); border-radius: var(--radius); padding: 14px; }
.stat-tile .value { font-size: 24px; font-weight: 700; }
.stat-tile .label { color: var(--text-dim); font-size: 12px; margin-top: 4px; }