:root {
  --bg: #3a3f46;
  --page-muted: #c3cad3;
  --field: #f5f7fa;
  --surface: #ffffff;
  --text: #1c2430;
  --muted: #5f6b7a;
  --border: #dde3ea;
  --accent: #1f6feb;
  --accent-ink: #ffffff;
  --banner: #14202e;
  --banner-text: #e8eef5;
  --danger-bg: #fdecec;
  --danger: #a12626;
  --ok-bg: #e7f6ec;
  --ok: #1d6b3a;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #2b3036;
    --page-muted: #aeb7c2;
    --field: #10161d;
    --surface: #18212b;
    --text: #e6ebf1;
    --muted: #9aa7b6;
    --border: #2a3644;
    --accent: #4b8ef5;
    --banner: #0a1017;
    --danger-bg: #3a1b1b;
    --danger: #f2a3a3;
    --ok-bg: #16301f;
    --ok: #9fdcb3;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--accent); }

.banner { background: var(--banner); color: var(--banner-text); }
.banner-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.brand {
  color: var(--banner-text);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: .04em;
  text-decoration: none;
  border: 2px solid currentColor;
  border-radius: 6px;
  padding: 4px 12px;
}
.links { display: flex; flex-wrap: wrap; gap: 4px; margin-left: auto; }
.links a {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--banner-text);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 8px;
  font-size: .95rem;
}
.links a:hover, .links a[aria-current] { background: rgba(255,255,255,.1); }
.links svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.links .logo { height: 28px; width: auto; border-radius: 6px; }
.links svg .dot { fill: currentColor; stroke: none; }
.portrait {
  width: 48px; height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255,255,255,.6);
  flex-shrink: 0;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
}

.content { flex: 1; width: 100%; max-width: 1000px; margin: 0 auto; padding: 40px 16px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  max-width: 560px;
  margin: 0 auto;
}
.card h1 { margin-top: 0; font-size: 1.6rem; }
.hero { text-align: left; }
.card.login { max-width: 380px; padding: 24px; margin-top: 24px; }
.card.login h1 { font-size: 1.35rem; }
.muted { color: var(--muted); }
.prose { max-width: 720px; }

.form { display: grid; gap: 14px; margin-top: 16px; }
.form label { display: grid; gap: 6px; font-weight: 600; font-size: .95rem; }
.form input[type=text], .form input[type=email], .form input[type=password], .form textarea {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--field);
  color: var(--text);
  width: 100%;
}
.form input:focus, .form textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.form .check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; }
.form .check input { margin-top: 5px; }
.hp { position: absolute; left: -10000px; }
button, .button {
  font: inherit; font-weight: 600;
  background: var(--accent); color: var(--accent-ink);
  border: 0; border-radius: 8px;
  padding: 10px 18px;
  cursor: pointer;
  justify-self: start;
  text-decoration: none;
  display: inline-block;
}
.button.secondary { background: transparent; color: var(--accent); border: 1px solid var(--border); }
.alert { background: var(--danger-bg); color: var(--danger); padding: 10px 12px; border-radius: 8px; }
.success { background: var(--ok-bg); color: var(--ok); padding: 10px 12px; border-radius: 8px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 20px 0; }
.tile { border: 1px solid var(--border); border-radius: 10px; padding: 14px; }
.tile h2 { font-size: 1.05rem; margin: 0 0 4px; }
.tile p { margin: 0; }

.footer a { color: #ffffff; }
.footer {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 16px;
  padding: 20px 16px;
  color: var(--page-muted);
  font-size: .9rem;
}

@media (max-width: 600px) {
  .banner-inner { flex-wrap: wrap; }
  .links { order: 3; width: 100%; margin-left: 0; }
  .portrait { margin-left: auto; width: 40px; height: 40px; }
  .card { padding: 20px; }
}

.inline { display: inline-flex; margin: 0; }
.linklike {
  background: none; border: 0; color: var(--banner-text);
  font: inherit; font-size: .95rem; font-weight: 400;
  padding: 6px 10px; border-radius: 8px; cursor: pointer; line-height: 1.55; display: inline-flex; align-items: center;
}
.linklike:hover { background: rgba(255,255,255,.1); }

/* Tools-Übersicht */
.tools, .admin { max-width: 900px; margin: 0 auto; }
.tools h1, .admin h1 { color: #ffffff; margin: 0 0 20px; font-size: 1.8rem; }
.page-muted { color: var(--page-muted); }
.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 16px;
}
.tool-tile {
  aspect-ratio: 1 / 1;
  display: flex; align-items: center; justify-content: center; gap: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 12px;
  transition: transform .12s ease, box-shadow .12s ease;
}
.tool-tile:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.25); }
.tool-tile:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.tool-icon svg {
  width: 34px; height: 34px; display: block;
  fill: none; stroke: var(--accent); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round;
}

/* Verwaltung */
.crumb { margin: 0 0 8px; }
.crumb a { color: var(--page-muted); text-decoration: none; }
.crumb a:hover { color: #fff; }
.card.wide { max-width: none; margin: 0 0 20px; }
.card h2 { margin: 0 0 4px; font-size: 1.15rem; }
.two-col { grid-template-columns: 1fr 1fr; align-items: start; }
.two-col .field, .two-col button { grid-column: 1 / -1; }
.field { display: grid; gap: 8px; }
.field-label { font-weight: 600; font-size: .95rem; }
.checks { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.small { font-size: .88rem; margin: 0; }
.badge {
  display: inline-block; font-size: .75rem; font-weight: 600;
  background: var(--accent); color: #fff;
  padding: 1px 8px; border-radius: 999px; margin-left: 6px; vertical-align: 1px;
}
.user-list { display: grid; gap: 10px; margin-top: 12px; }
.user-row { border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
details.user-row > summary { cursor: pointer; list-style: none; }
details.user-row > summary::-webkit-details-marker { display: none; }
details.user-row > summary::after { content: "Bearbeiten ▾"; float: right; color: var(--accent); font-size: .88rem; margin-top: -1.4em; }
details[open].user-row > summary::after { content: "Schließen ▴"; }
.user-body { border-top: 1px solid var(--border); margin-top: 12px; padding-top: 4px; }
.inline-form { grid-template-columns: 1fr auto; align-items: end; }
.button.danger { background: transparent; color: var(--danger); border: 1px solid currentColor; }
@media (max-width: 600px) {
  .two-col, .inline-form { grid-template-columns: 1fr; }
  .tool-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}