:root {
    --bg: #0d1117;
    --bg-elev: #131a23;
    --bg-elev-2: #1a2230;
    --fg: #e6edf3;
    --fg-muted: #8b949e;
    --fg-subtle: #6e7681;
    --border: #21262d;
    --border-soft: #1c2128;
    --accent: #4f8cff;
    --accent-hover: #6ea0ff;
    --ok: #3fb950;
    --ok-bg: rgba(63, 185, 80, 0.12);
    --warn: #d29922;
    --warn-bg: rgba(210, 153, 34, 0.12);
    --down: #f85149;
    --down-bg: rgba(248, 81, 73, 0.12);
    --shadow: 0 1px 3px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.18);
    --radius: 10px;
    --radius-sm: 6px;
}

* { box-sizing: border-box; }
*::selection { background: rgba(79,140,255,.35); }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3 { margin: 0 0 .5em; line-height: 1.25; }
h1 { font-size: 1.5rem; font-weight: 600; }
h2 { font-size: 1.15rem; font-weight: 600; }

.muted { color: var(--fg-muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

/* ---------- Topbar / Layout ---------- */

.topbar {
    position: sticky;
    top: 0;
    background: rgba(13,17,23,.85);
    backdrop-filter: saturate(140%) blur(8px);
    border-bottom: 1px solid var(--border);
    z-index: 10;
}
.topbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: .75rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    color: var(--fg);
    font-weight: 600;
    letter-spacing: .2px;
}
.brand:hover { color: var(--fg); }
.brand-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--ok);
    box-shadow: 0 0 0 3px var(--ok-bg);
}
.mainnav {
    display: flex;
    gap: .25rem;
    flex: 1;
    margin-left: 1rem;
}
.mainnav a {
    color: var(--fg-muted);
    padding: .5rem .85rem;
    border-radius: var(--radius-sm);
    font-size: .95rem;
    transition: background .15s, color .15s;
}
.mainnav a:hover {
    color: var(--fg);
    background: var(--bg-elev);
}
.mainnav a.is-active {
    color: var(--fg);
    background: var(--bg-elev-2);
}
.topbar-right {
    display: flex;
    align-items: center;
    gap: .85rem;
    font-size: .9rem;
}
.version-badge {
    display: inline-block;
    padding: .15rem .55rem;
    font-size: .75rem;
    font-weight: 500;
    color: var(--fg-muted);
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    border-radius: 999px;
    text-decoration: none;
    transition: color .15s, border-color .15s;
}
.version-badge:hover {
    color: var(--fg);
    border-color: var(--accent);
}

.page {
    padding: 2rem 0 4rem;
}
.page-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.25rem;
}
.page-head {
    margin-bottom: 1.5rem;
}
.page-head h1 { margin-bottom: .25rem; }

/* ---------- Cards ---------- */

.card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
}
.card + .card { margin-top: 1rem; }
.card.placeholder {
    border-style: dashed;
    background: var(--bg-elev-2);
}

/* ---------- Buttons ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .55rem 1rem;
    font-size: .95rem;
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    line-height: 1.2;
    transition: background .15s, border-color .15s, color .15s, transform .05s;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-ghost {
    background: transparent;
    color: var(--fg);
    border-color: var(--border);
}
.btn-ghost:hover { background: var(--bg-elev-2); color: var(--fg); }
.btn-danger {
    background: transparent;
    color: var(--down);
    border-color: rgba(248, 81, 73, .35);
}
.btn-danger:hover { background: var(--down-bg); }
.btn-sm { padding: .35rem .7rem; font-size: .85rem; }
.btn-block { width: 100%; }

/* ---------- Forms ---------- */

.field {
    display: block;
    margin-bottom: 1rem;
}
.field > span {
    display: block;
    font-size: .85rem;
    color: var(--fg-muted);
    margin-bottom: .35rem;
}
input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: .6rem .8rem;
    background: var(--bg);
    color: var(--fg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font: inherit;
    transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(79,140,255,.18);
}

/* ---------- Alerts ---------- */

.alert {
    padding: .75rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    margin-bottom: 1rem;
    font-size: .92rem;
}
.alert ul { margin: .25rem 0; padding-left: 1.25rem; }
.alert-success { background: var(--ok-bg);   border-color: rgba(63,185,80,.35);  color: #b6f0c0; }
.alert-error   { background: var(--down-bg); border-color: rgba(248,81,73,.35);  color: #f5b3b1; }
.alert-warn    { background: var(--warn-bg); border-color: rgba(210,153,34,.35); color: #f0d99a; }
.alert-info    { background: rgba(79,140,255,.10); border-color: rgba(79,140,255,.35); color: #c8d8ff; }

/* ---------- Auth shell (login + setup) ---------- */

.auth-body {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(60% 40% at 50% 0%, rgba(79,140,255,.10), transparent 60%),
        var(--bg);
}
.auth-shell {
    width: 100%;
    max-width: 420px;
    padding: 2rem 1.25rem;
}
.auth-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 2rem 1.75rem;
    box-shadow: var(--shadow);
}
.auth-brand {
    display: flex;
    align-items: center;
    gap: .55rem;
    margin-bottom: 1.5rem;
    color: var(--fg);
}
.auth-dot {
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--ok);
    box-shadow: 0 0 0 4px var(--ok-bg);
}
.auth-title {
    margin-bottom: 1rem;
    font-size: 1.35rem;
}
.auth-footnote {
    text-align: center;
    margin-top: 1.5rem;
    font-size: .8rem;
    color: var(--fg-subtle);
}

/* ---------- Tables (vorbereitet fuer Schritt 2) ---------- */

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: .92rem;
}
.table th, .table td {
    padding: .65rem .85rem;
    text-align: left;
    border-bottom: 1px solid var(--border-soft);
    vertical-align: middle;
}
.table th {
    color: var(--fg-muted);
    font-weight: 500;
    background: var(--bg-elev-2);
    border-bottom: 1px solid var(--border);
}
.table tbody tr:hover { background: var(--bg-elev-2); }
.table tbody tr:last-child td { border-bottom: none; }

/* ---------- Status indicators ---------- */

.status {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    font-size: .85rem;
}
.status-dot {
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--fg-subtle);
}
.status-up    .status-dot { background: var(--ok);   box-shadow: 0 0 0 3px var(--ok-bg); }
.status-down  .status-dot { background: var(--down); box-shadow: 0 0 0 3px var(--down-bg); }
.status-warn  .status-dot { background: var(--warn); box-shadow: 0 0 0 3px var(--warn-bg); }
.status-up    { color: #b6f0c0; }
.status-down  { color: #f5b3b1; }
.status-warn  { color: #f0d99a; }

/* ---------- Stats ---------- */

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: .9rem;
    margin-bottom: 1rem;
}
.kpi {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.1rem;
}
.kpi-label { color: var(--fg-muted); font-size: .8rem; }
.kpi-value { font-size: 1.6rem; font-weight: 600; margin-top: .25rem; }

/* ---------- Prose (Changelog) ---------- */

.prose h1 { font-size: 1.4rem; margin-top: 0; margin-bottom: 1rem; }
.prose h2 {
    font-size: 1.05rem;
    color: var(--accent);
    border-bottom: 1px solid var(--border);
    padding-bottom: .35rem;
    margin-top: 1.75rem;
    margin-bottom: .8rem;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 {
    font-size: .95rem;
    color: var(--fg-muted);
    margin-top: 1.1rem;
    margin-bottom: .4rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .4px;
}
.prose p { margin: .5rem 0; }
.prose ul {
    margin: .25rem 0 .75rem;
    padding-left: 1.4rem;
}
.prose li { margin-bottom: .25rem; }
.prose code {
    font-family: ui-monospace, Menlo, Consolas, monospace;
    font-size: .88em;
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    padding: 1px 6px;
    border-radius: 4px;
}
.prose pre {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: .85rem 1rem;
    overflow-x: auto;
    font-size: .85em;
    line-height: 1.55;
    margin: .75rem 0;
}
.prose pre code {
    background: transparent;
    border: none;
    padding: 0;
    font-size: 1em;
}
.prose strong { color: var(--fg); }

/* ---------- Responsive ---------- */

@media (max-width: 720px) {
    .topbar-inner { flex-wrap: wrap; gap: .75rem; }
    .mainnav { order: 3; flex-basis: 100%; flex-wrap: wrap; margin-left: 0; }
    .topbar-right { order: 2; margin-left: auto; }
}