:root {
    --bg: #0f172a;
    --panel: #111c33;
    --panel-2: #16233f;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --line: rgba(148, 163, 184, .18);
    --blue: #38bdf8;
    --green: #22c55e;
    --red: #ef4444;
    --yellow: #f59e0b;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, Segoe UI, Arial, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(56, 189, 248, .18), transparent 28rem),
        radial-gradient(circle at bottom right, rgba(34, 197, 94, .10), transparent 22rem),
        var(--bg);
    color: var(--text);
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

.layout {
    width: min(1380px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0;
}

.layout.narrow {
    max-width: 820px;
}

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

.topbar h1 {
    margin: 0;
    font-size: 34px;
    letter-spacing: -0.04em;
}

.topbar p {
    margin: 8px 0 0;
    color: var(--muted);
}

.top-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.btn {
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .04);
    color: var(--text);
    padding: 10px 14px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    white-space: nowrap;
    font-size: 14px;
    font-family: inherit;
}

.btn:hover {
    border-color: rgba(56, 189, 248, .5);
    background: rgba(56, 189, 248, .08);
}

.btn.primary {
    background: linear-gradient(135deg, #0ea5e9, #2563eb);
    border-color: transparent;
    font-weight: 700;
}

.btn.small {
    padding: 7px 9px;
    border-radius: 9px;
    font-size: 12px;
}

.btn.danger:hover {
    border-color: rgba(239, 68, 68, .6);
    background: rgba(239, 68, 68, .12);
}

.btn.full {
    width: 100%;
}

.cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.card,
.panel,
.form-card,
.auth-card {
    background: rgba(17, 28, 51, .88);
    border: 1px solid var(--line);
    border-radius: 22px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, .22);
}

.card {
    padding: 20px;
}

.card span {
    display: block;
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 8px;
}

.card strong {
    font-size: 28px;
}

.panel {
    overflow: hidden;
}

.panel-header {
    padding: 18px;
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.panel-header h2 {
    margin: 0;
}

input,
select {
    width: 100%;
    border: 1px solid var(--line);
    background: rgba(15, 23, 42, .92);
    color: var(--text);
    padding: 12px 13px;
    border-radius: 12px;
    outline: none;
}

input:focus,
select:focus {
    border-color: rgba(56, 189, 248, .7);
}

#tableSearch {
    max-width: 340px;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .08em;
    background: rgba(255, 255, 255, .025);
}

td {
    font-size: 14px;
}

.url-cell,
.error-text {
    max-width: 360px;
    word-break: break-all;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.inline-form {
    display: inline;
    margin: 0;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 9px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
}

.badge-ok {
    color: #052e16;
    background: var(--green);
}

.badge-down {
    color: #450a0a;
    background: var(--red);
}

.badge-wait {
    color: #422006;
    background: var(--yellow);
}

.muted {
    display: block;
    color: var(--muted);
    margin-top: 4px;
    font-size: 12px;
}

.error-row td {
    color: #fecaca;
    background: rgba(239, 68, 68, .08);
    font-size: 12px;
}

.empty {
    text-align: center;
    color: var(--muted);
    padding: 30px;
}

.form-card {
    padding: 22px;
    display: grid;
    gap: 16px;
}

label {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-weight: 700;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.checkline {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkline input {
    width: auto;
}

.auth-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.auth-card {
    width: min(440px, 100%);
    padding: 26px;
}

.brand {
    display: flex;
    gap: 14px;
    align-items: center;
    margin-bottom: 22px;
}

.brand-icon {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #0ea5e9, #2563eb);
    font-weight: 900;
}

.brand h1 {
    margin: 0;
    font-size: 28px;
    letter-spacing: -0.04em;
}

.brand p {
    margin: 5px 0 0;
    color: var(--muted);
}

.form-stack {
    display: grid;
    gap: 15px;
}

.auth-link {
    margin: 18px 0 0;
    color: var(--muted);
    text-align: center;
}

.auth-link a {
    color: var(--blue);
    font-weight: 800;
}

.alert {
    border-radius: 14px;
    padding: 12px 14px;
    margin-bottom: 16px;
    border: 1px solid var(--line);
}

.alert-success {
    background: rgba(34, 197, 94, .10);
    color: #bbf7d0;
    border-color: rgba(34, 197, 94, .25);
}

.alert-error {
    background: rgba(239, 68, 68, .10);
    color: #fecaca;
    border-color: rgba(239, 68, 68, .25);
}

@media (max-width: 900px) {
    .cards,
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .topbar,
    .panel-header {
        align-items: stretch;
        flex-direction: column;
    }

    #tableSearch {
        max-width: none;
    }
}


.panel-subtitle {
    margin: 6px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.chart-panel {
    margin-bottom: 20px;
}

.chart-wrap {
    padding: 18px;
    width: 100%;
}

#latencyChart {
    width: 100%;
    display: block;
    border-radius: 16px;
    background:
        linear-gradient(180deg, rgba(15, 23, 42, .72), rgba(15, 23, 42, .32));
    border: 1px solid rgba(148, 163, 184, .12);
}

#chartLimit {
    max-width: 180px;
}


code {
    color: #bae6fd;
    background: rgba(15, 23, 42, .72);
    border: 1px solid rgba(148, 163, 184, .16);
    padding: 2px 6px;
    border-radius: 8px;
}

button:disabled {
    opacity: .65;
    cursor: wait;
}