:root {
    --bg: #f5f6f8;
    --card: #ffffff;
    --ink: #1d2330;
    --muted: #6b7280;
    --line: #e2e5ea;
    --accent: #2b5cff;
    --warn: #b9560f;
    --ok-bg: #e7f6ec;
    --ok-ink: #1c6b3a;
    --err-bg: #fdecec;
    --err-ink: #9b1c1c;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.5;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--ink);
    color: #fff;
    padding: 0.7rem 1.2rem;
}

.topbar .brand { color: #fff; font-weight: 700; text-decoration: none; }
.topbar nav { display: flex; align-items: center; gap: 1.1rem; }
.topbar nav a { color: #cdd5e6; text-decoration: none; }
.topbar nav a:hover { color: #fff; }

.container { max-width: 920px; margin: 1.5rem auto; padding: 0 1.2rem; }

h1 { font-size: 1.5rem; margin: 0.2rem 0 1rem; }
h2 { font-size: 1.15rem; margin: 0 0 0.8rem; }
h3 { font-size: 1.02rem; margin: 0; }

.head-row { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
.muted { color: var(--muted); font-size: 0.9rem; }

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 1.1rem 1.2rem;
    margin: 1rem 0;
}
.card.narrow { max-width: 460px; margin: 2rem auto; }

.table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.table th, .table td { padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--line); text-align: left; }
.table thead th { background: #f0f2f6; font-size: 0.82rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
.table tr:last-child td { border-bottom: none; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.8rem 1rem; }
label { display: flex; flex-direction: column; font-size: 0.85rem; color: var(--muted); gap: 0.25rem; }
label.check { flex-direction: row; align-items: center; gap: 0.4rem; }
input[type=text], input[type=password], input[type=number], select {
    padding: 0.5rem 0.6rem; border: 1px solid var(--line); border-radius: 7px; font-size: 0.95rem; color: var(--ink); background: #fff;
}
.grid .btn { grid-column: 1 / -1; justify-self: start; }

.btn {
    display: inline-block; background: var(--accent); color: #fff; border: none;
    padding: 0.55rem 1rem; border-radius: 7px; font-size: 0.92rem; cursor: pointer; text-decoration: none;
}
.btn:hover { filter: brightness(1.07); }
.btn-warn { background: var(--warn); margin-top: 0.6rem; }
.linkbtn { background: none; border: none; color: #cdd5e6; cursor: pointer; font: inherit; padding: 0; }
.linkbtn:hover { color: #fff; }
.inline { display: inline; }

.flash { padding: 0.7rem 1rem; border-radius: 8px; margin-bottom: 1rem; font-size: 0.92rem; }
.flash-success { background: var(--ok-bg); color: var(--ok-ink); }
.flash-error { background: var(--err-bg); color: var(--err-ink); }

.token { background: #0e1424; color: #d6e2ff; padding: 0.9rem; border-radius: 8px; word-break: break-all; font-size: 0.95rem; }
.token-row { display: flex; gap: 0.6rem; align-items: stretch; margin: 0.6rem 0 1rem; }
.token-field {
    flex: 1; font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
    font-size: 0.95rem; padding: 0.7rem 0.8rem; border: 1px solid var(--line); border-radius: 7px;
    background: #0e1424; color: #d6e2ff; letter-spacing: .02em;
}
.token-row .btn { white-space: nowrap; }
.btn-secondary { background: #5b6577; }
.warn-text { color: var(--warn); }
code { background: #eef0f4; padding: 0.1rem 0.35rem; border-radius: 4px; }