:root {
    --bg: #0f1115;
    --bg-card: #171a21;
    --border: #262a33;
    --text: #e8e9ec;
    --text-dim: #8b8f9a;
    --green: #2ecc71;
    --yellow: #f1c40f;
    --red: #e74c3c;
    --accent: #4f8dfd;
}

* { box-sizing: border-box; }

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

.logo {
    font-weight: 700;
    font-size: 20px;
    letter-spacing: -0.5px;
}
.logo span { color: var(--accent); font-weight: 400; }

/* --- Login --- */
.login-wrap {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 32px;
    width: 100%;
    max-width: 340px;
    text-align: center;
}
.subtitle {
    color: var(--text-dim);
    font-size: 14px;
    margin: 10px 0 24px;
}
.login-card input {
    width: 100%;
    padding: 14px 16px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #0c0e12;
    color: var(--text);
    font-size: 16px;
    text-align: center;
    letter-spacing: 4px;
    margin-bottom: 14px;
}
.login-card button {
    width: 100%;
    padding: 14px;
    border-radius: 10px;
    border: none;
    background: var(--accent);
    color: white;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
}
.error {
    background: rgba(231,76,60,0.15);
    color: var(--red);
    padding: 10px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 14px;
}

/* --- Topbar --- */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
}
.topbar-actions { display: flex; gap: 10px; align-items: center; }
.btn-refresh, .btn-logout {
    padding: 9px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}
.btn-refresh {
    background: var(--accent);
    color: white;
    border: none;
}
.btn-logout {
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--border);
}

/* --- Container --- */
.container { padding: 24px; max-width: 1100px; margin: 0 auto; }

.summary {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 30px;
}
.summary-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px;
    text-align: center;
}
.summary-card .num { font-size: 28px; font-weight: 700; }
.summary-card .label { font-size: 12px; color: var(--text-dim); margin-top: 4px; }
.summary-card.ok .num { color: var(--green); }
.summary-card.warn .num { color: var(--yellow); }
.summary-card.bad .num { color: var(--red); }
.summary-card.neutral .num { color: var(--accent); }

.group-title {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-dim);
    margin: 26px 0 12px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    text-decoration: none;
    color: var(--text);
    display: block;
    transition: transform 0.15s, border-color 0.15s;
}
.card:hover { transform: translateY(-2px); border-color: var(--accent); }

.card-top { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.status-up .dot { background: var(--green); box-shadow: 0 0 8px var(--green); }
.status-slow .dot { background: var(--yellow); box-shadow: 0 0 8px var(--yellow); }
.status-down .dot { background: var(--red); box-shadow: 0 0 8px var(--red); }

.card-name { font-weight: 600; font-size: 14px; }
.card-url { font-size: 12px; color: var(--text-dim); margin-bottom: 8px; }
.card-meta { font-size: 12px; color: var(--text-dim); }
.status-down .card-meta { color: var(--red); }
.status-slow .card-meta { color: var(--yellow); }

@media (max-width: 640px) {
    .summary { grid-template-columns: repeat(2, 1fr); }
}