:root[data-theme="dark"] {
    --bg: #0f1420;
    --bg-elevated: #171d2c;
    --bg-card: #1b2233;
    --border: #2a3347;
    --text: #e8ecf5;
    --text-muted: #93a0bd;
    --accent: #4f8cff;
    --accent-hover: #6ea0ff;
    --success: #35c98f;
    --danger: #ff5d70;
    --warning: #ffbe4d;
    --shadow: 0 4px 16px rgba(0,0,0,0.35);
}

:root[data-theme="light"] {
    --bg: #f4f6fb;
    --bg-elevated: #ffffff;
    --bg-card: #ffffff;
    --border: #e0e5ef;
    --text: #1a2233;
    --text-muted: #5b6579;
    --accent: #2f6fed;
    --accent-hover: #1e5be0;
    --success: #17a877;
    --danger: #e0334f;
    --warning: #c98a12;
    --shadow: 0 4px 16px rgba(20,30,60,0.08);
}

* { 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;
    line-height: 1.5;
}

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

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 24px 20px 60px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.topbar-brand { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.topbar-brand a { color: var(--text); }
.brand-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); display: inline-block; }
.topbar-nav { display: flex; gap: 18px; }
.topbar-nav a { color: var(--text-muted); font-weight: 500; }
.topbar-nav a:hover { color: var(--text); }
.topbar-user { display: flex; align-items: center; gap: 14px; }
.user-chip { color: var(--text-muted); font-size: 0.9em; }
#theme-toggle,
.theme-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 8px;
    padding: 6px 10px;
    cursor: pointer;
}

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

h1, h2, h3 { color: var(--text); }
.text-muted { color: var(--text-muted); }

.btn {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95em;
}
.btn:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-elevated); color: var(--text); border: 1px solid var(--border); }
.btn-danger { background: var(--danger); }
.btn-link { color: var(--danger); font-weight: 600; }

.form-group { margin-bottom: 16px; }
label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 0.9em; }
input[type=text], input[type=password], input[type=url], select, textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.95em;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-size: 0.85em; text-transform: uppercase; letter-spacing: 0.03em; }

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.78em;
    font-weight: 700;
}
.badge-bisnis { background: rgba(53,201,143,0.15); color: var(--success); }
.badge-biasa { background: rgba(147,160,189,0.15); color: var(--text-muted); }
.badge-ok { background: rgba(53,201,143,0.15); color: var(--success); }
.badge-error { background: rgba(255,93,112,0.15); color: var(--danger); }

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.92em;
}
.alert-error { background: rgba(255,93,112,0.12); color: var(--danger); border: 1px solid rgba(255,93,112,0.3); }
.alert-success { background: rgba(53,201,143,0.12); color: var(--success); border: 1px solid rgba(53,201,143,0.3); }
.alert-info { background: rgba(79,140,255,0.12); color: var(--accent); border: 1px solid rgba(79,140,255,0.3); }

/*
 * KOREKSI (v2): coba muat 4 grafik dalam SATU baris mengisi ruang yang
 * tersedia, TAPI dibatasi maksimum ~480px per gambar. Gambar grafik dari
 * MikroTik resolusi aslinya kecil (sekitar 500px lebar) - kalau dipaksa
 * lebih lebar dari itu gambarnya jadi buram (upscale), bukan makin tajam.
 * 4 x 480px + 3 x gap 16px = 1968px, jadi grid dibatasi max-width segitu
 * dan di-tengahkan kalau card-nya lebih lebar dari itu (monitor besar).
 * Kalau ruang tidak cukup untuk 4 kolom nyaman (<900px), turun ke 2 kolom:
 * baris atas Daily+Weekly, baris bawah Monthly+Yearly (bukan Yearly
 * sendirian) - karena grid mengisi berurutan sesuai HTML.
 */
.grid-graphs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    max-width: 1968px;
    margin: 0 auto;
}
@media (max-width: 900px) {
    .grid-graphs {
        grid-template-columns: repeat(2, 1fr);
        max-width: 976px;
    }
}
@media (max-width: 480px) {
    .grid-graphs {
        grid-template-columns: 1fr;
        max-width: 480px;
    }
}
.grid-graphs img { width: 100%; border-radius: 8px; border: 1px solid var(--border); background: #fff; }
.graph-caption {
    font-size: 0.78em;
    line-height: 1.6;
    margin-top: 6px;
    color: var(--text);
}
.graph-caption .text-muted { font-weight: 600; margin-right: 2px; }

/* Keterangan Max/Average/Current di bawah tiap grafik - format teks dibuat
   sama persis dengan halaman sumber (index.html / index.php). Memakai font
   monospace supaya angka antar baris In/Out sejajar dan mudah dibandingkan. */
.graph-caption-title {
    font-weight: 700;
    margin-bottom: 3px;
    color: var(--text);
}
.graph-caption-line {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
    font-size: 0.95em;
    white-space: normal;
    word-break: break-word;
    border-left: 3px solid transparent;
    padding-left: 6px;
}
.graph-caption-line.line-in { border-left-color: #00cc00; }
.graph-caption-line.line-out { border-left-color: #4f8cff; }
.graph-caption-empty { font-style: italic; }

/* Indikator kesegaran data client (lihat client_freshness_status()) */
.freshness-stale {
    opacity: 0.55;
}
.freshness-critical {
    opacity: 1;
    animation: freshness-blink 1.1s ease-in-out infinite;
    outline: 2px solid var(--danger);
}
tr.freshness-critical {
    outline: none;
    animation: freshness-blink-row 1.1s ease-in-out infinite;
}
@keyframes freshness-blink {
    0%, 100% { box-shadow: 0 0 0 rgba(255,93,112,0); }
    50% { box-shadow: 0 0 0 4px rgba(255,93,112,0.45); }
}
@keyframes freshness-blink-row {
    0%, 100% { background-color: transparent; }
    50% { background-color: rgba(255,93,112,0.18); }
}

.copy-btn {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 6px;
    padding: 3px 8px;
    font-size: 0.78em;
    cursor: pointer;
    margin-left: 6px;
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent); }

details summary { user-select: none; }
details table { font-size: 0.88em; }

.login-wrap {
    max-width: 380px;
    margin: 80px auto;
}

.footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85em;
    padding: 20px;
}

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr)); gap: 10px; margin-top: 10px; }
.stat-box { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; }
.stat-box .label { font-size: 0.75em; color: var(--text-muted); text-transform: uppercase; }
.stat-box .value { font-size: 1.1em; font-weight: 700; margin-top: 2px; }

.topbar-public { justify-content: space-between; }


/* Baris "Last update" yang dilaporkan router sendiri. Dibedakan secara
   visual dari "fetch terakhir" karena keduanya sering tertukar: yang satu
   waktu panel mengambil, yang satu lagi waktu router memperbarui grafik. */
.source-update {
    font-size: 0.85em;
    margin: 6px 0;
    padding: 6px 10px;
    border-left: 3px solid var(--border);
    background: var(--bg-elevated);
    border-radius: 6px;
}
.source-update-stale {
    border-left-color: var(--danger, #ff5d5d);
}


/* Topbar halaman publik: brand di kiri, tombol tema di kanan. */
.topbar-public { display: flex; align-items: center; justify-content: space-between; }
.topbar-public .theme-toggle { font-size: 1.05em; line-height: 1; }

/* Hasil tombol "Uji" pada URL sumber data (client_edit.php). */
.test-result {
    margin-top: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    font-size: 0.88em;
}
.test-result.good { border-left: 3px solid var(--success); }
.test-result.bad  { border-left: 3px solid var(--danger); }
.test-summary { font-weight: 600; margin-bottom: 6px; }
.test-details { list-style: none; margin: 0; padding: 0; }
.test-details li {
    display: flex;
    gap: 10px;
    padding: 3px 0;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}
.test-details .tl {
    flex: 0 0 190px;
    color: var(--text-muted);
    word-break: break-all;
}
.test-details .tv { flex: 1; min-width: 200px; }
.test-details .state-good .tv { color: var(--success); }
.test-details .state-bad  .tv { color: var(--danger); }
.test-details .state-warn .tv { color: var(--warning); }