:root {
  --bg: #f4f5f7;
  --card: #fff;
  --text: #1d2026;
  --muted: #6b7280;
  --border: #d9dce1;
  --hover: #eef0f3;
  --accent: #2f5fd0;
  --accent-text: #fff;
  --error: #b42318;
  --success: #067647;
  --warn: #93370d;
  --warn-bg: #fef0c7;
  --ok-bg: #dcfae6;
  --off-bg: #eaecf0;
  --admin-bg: #e0e8fd;
  --shadow: 0 8px 24px rgb(16 24 40 / 0.12);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181d;
    --card: #1f2229;
    --text: #e6e8eb;
    --muted: #9aa1ab;
    --border: #353a44;
    --hover: #2a2e37;
    --accent: #6b8fef;
    --accent-text: #0e1116;
    --error: #f97066;
    --success: #47cd89;
    --warn: #fec84b;
    --warn-bg: #4e3712;
    --ok-bg: #0f3a25;
    --off-bg: #2c3039;
    --admin-bg: #22305a;
    --shadow: 0 8px 24px rgb(0 0 0 / 0.45);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  min-height: 100vh;
}

/* Login: Karte mittig */
body.center {
  display: grid;
  place-items: center;
  padding: 16px;
}

a { color: var(--accent); }
h1 { margin: 0 0 1.25rem; font-size: 1.5rem; }
.muted { color: var(--muted); }

/* ---------- Kopfzeile ---------- */
.appbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 52px;
  padding: 0 16px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; color: var(--text); text-decoration: none; letter-spacing: 0.01em; }

/* ---------- Benutzermenü ---------- */
.usermenu { position: relative; }

.usermenu-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.5rem 0.25rem 0.25rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font-size: 0.9rem;
}
.usermenu-btn:hover, .usermenu-btn[aria-expanded="true"] { background: var(--hover); border-color: var(--border); }
.usermenu-name { max-width: 12rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.caret { color: var(--muted); font-size: 0.75rem; }

.avatar {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
  font-size: 0.85rem;
}

.usermenu-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 230px;
  display: grid;
  padding: 0.35rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
}
.usermenu-panel[hidden] { display: none; }
.usermenu-head { display: grid; gap: 0.15rem; padding: 0.5rem 0.75rem 0.6rem; font-size: 0.9rem; }
.usermenu-head .badge { justify-self: start; margin-top: 0.2rem; }
.usermenu-panel a,
.usermenu-panel button {
  display: block;
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 0.92rem;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
}
.usermenu-panel a:hover, .usermenu-panel a:focus-visible,
.usermenu-panel button:hover, .usermenu-panel button:focus-visible { background: var(--hover); outline: none; }
.usermenu-panel a[aria-current="page"] { font-weight: 600; }
.usermenu-panel a[hidden] { display: none; }
.usermenu-panel .logout { color: var(--error); }
.usermenu-panel hr { border: 0; border-top: 1px solid var(--border); margin: 0.35rem 0; }

@media (max-width: 480px) {
  .usermenu-name { display: none; }
}

/* ---------- Seiten ---------- */
.page { max-width: 720px; margin: 2rem auto; padding: 0 16px; }
.page.narrow { max-width: 480px; }
.page.wide { max-width: 1040px; }
.lead { margin: -0.75rem 0 1.5rem; }

.back { display: inline-block; margin-bottom: 0.75rem; color: var(--muted); text-decoration: none; font-size: 0.9rem; }
.back:hover { color: var(--text); }

.title-row { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1rem; }
.title-row h1 { margin: 0; }

/* ---------- Kacheln (Startseite) ---------- */
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }
.tile {
  display: grid;
  gap: 0.35rem;
  align-content: start;
  padding: 1.25rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}
.tile:hover, .tile:focus-visible { border-color: var(--accent); transform: translateY(-1px); outline: none; }
.tile[hidden] { display: none; }
.tile-icon { font-size: 1.5rem; line-height: 1; color: var(--accent); }
.tile-title { font-weight: 600; font-size: 1.05rem; margin-top: 0.4rem; }
.tile-text { color: var(--muted); font-size: 0.9rem; }

/* ---------- Karte (Login) ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 360px;
}

/* ---------- Formulare ---------- */
form { display: grid; gap: 1rem; }
form.row { grid-template-columns: 1fr auto; gap: 0.5rem; }
label { display: grid; gap: 0.35rem; font-size: 0.9rem; }
label .row { display: grid; grid-template-columns: 1fr auto; gap: 0.5rem; }
label.check { display: flex; align-items: center; gap: 0.5rem; }
label.check input { width: auto; }

input, select {
  font: inherit;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
  width: 100%;
}
.card input { background: var(--bg); }
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

button {
  font: inherit;
  padding: 0.6rem 1rem;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-text);
  cursor: pointer;
}
button:disabled { opacity: 0.6; cursor: wait; }
button.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
button.danger { background: transparent; color: var(--error); border: 1px solid var(--error); }
button.small { padding: 0.3rem 0.6rem; font-size: 0.85rem; }

/* ---------- Meldungen ---------- */
.error { color: var(--error); margin: 0; overflow-wrap: anywhere; }
.success { color: var(--success); margin: 0 0 1rem; overflow-wrap: anywhere; }
#msg.error { margin: 0 0 1rem; }
.notice { background: var(--warn-bg); color: var(--warn); padding: 0.75rem 1rem; border-radius: 8px; }

/* ---------- Nachrichten ---------- */
.messages { list-style: none; padding: 0; margin: 1.5rem 0 0; display: grid; gap: 0.75rem; }
.messages li { border-top: 1px solid var(--border); padding-top: 0.75rem; }
.messages p { margin: 0 0 0.25rem; overflow-wrap: anywhere; }

/* ---------- Benutzertabelle ---------- */
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--border); border-radius: 12px; }
table.users { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
table.users th, table.users td { text-align: left; padding: 0.6rem 0.75rem; border-top: 1px solid var(--border); vertical-align: middle; }
table.users th { color: var(--muted); font-weight: 500; border-top: 0; white-space: nowrap; }
table.users td { white-space: nowrap; }
table.users tr.inactive td:not(.actions) { opacity: 0.6; }
table.users td.actions { display: flex; flex-wrap: wrap; gap: 0.35rem; white-space: normal; min-width: 18rem; }

.badge { display: inline-block; padding: 0.1rem 0.5rem; border-radius: 999px; font-size: 0.8rem; }
.badge.ok { background: var(--ok-bg); color: var(--success); }
.badge.off { background: var(--off-bg); color: var(--muted); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.admin { background: var(--admin-bg); color: var(--accent); }
.badge.user { background: var(--off-bg); color: var(--text); }

/* ---------- Dialoge ---------- */
dialog {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  color: var(--text);
  padding: 1.5rem;
  width: min(440px, calc(100vw - 32px));
}
dialog::backdrop { background: rgb(0 0 0 / 0.45); }
dialog h2 { margin: 0 0 0.25rem; font-size: 1.2rem; }
dialog p { margin: 0; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 0.5rem; }