/* Layout: zentrierte Arbeitsspalte; oben Navigation, Mitte die Karte, unten Bewertung – breit: Fächer-Leiste rechts */
:root {
  --bg: #eef3f5;
  --surface: #ffffff;
  --ink: #12303c;
  --muted: #5a7480;
  --line: #cfdde2;
  --lake: #1f6f8b;
  --lake-soft: #d6e9ef;
  --signal: #e8731a;
  --good: #2f8a5b;
  --bad: #c0392b;
  --f-display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --f-body: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --bg: #0b1a20; --surface: #12262e; --ink: #e3eef1; --muted: #8fa9b3; --line: #24404a;
  --lake: #5fb3cf; --lake-soft: #173a46; --signal: #f39a4c; --good: #5cc28d; --bad: #ef7466; color-scheme: dark; } }
:root[data-theme="dark"] {
  --bg: #0b1a20; --surface: #12262e; --ink: #e3eef1; --muted: #8fa9b3; --line: #24404a;
  --lake: #5fb3cf; --lake-soft: #173a46; --signal: #f39a4c; --good: #5cc28d; --bad: #ef7466; color-scheme: dark; }

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { padding-top: env(safe-area-inset-top, 0px); padding-bottom: env(safe-area-inset-bottom, 0px); }
body {
  margin: 0; background: var(--bg); color: var(--ink); font: 400 1rem/1.5 var(--f-body);
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 0 2rem;
  -webkit-text-size-adjust: 100%;
}
.wrap { max-width: 1040px; margin: 0 auto; }
button, select, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid var(--signal); outline-offset: 2px; border-radius: 6px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

header {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .75rem;
  padding-block: 1.1rem .9rem; border-bottom: 1px solid var(--line); margin-bottom: 1.25rem;
}
.brand { display: flex; align-items: center; gap: .65rem; }
.brand svg { flex: none; }
.brand h1 { font: 700 1.35rem/1.1 var(--f-display); margin: 0; letter-spacing: -.01em; }
.brand small { display: block; font: 500 .7rem var(--f-mono); color: var(--muted); letter-spacing: .08em; text-transform: uppercase; }
.head-right { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1rem; }
nav { display: flex; gap: .25rem; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: .25rem; }
nav a { text-decoration: none; color: var(--muted); font-weight: 600; padding: .4rem .95rem; border-radius: 999px; }
nav a[aria-current="page"] { background: var(--lake); color: var(--surface); }
.userbox { display: flex; align-items: center; gap: .6rem; font-size: .9rem; color: var(--muted); }
.userbox span { font-weight: 600; color: var(--ink); }
.link { background: none; border: 0; padding: 0; color: var(--lake); text-decoration: underline; font-size: .9rem; }
.link.danger { color: var(--bad); }

.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 1.1rem; min-width: 0; }
h2 { font: 700 1rem var(--f-display); margin: 0 0 .75rem; }
.row { display: flex; flex-wrap: wrap; gap: .5rem; }
.note { font-size: .85rem; color: var(--muted); margin: 0; }
.error { margin: 0; color: var(--bad); font-weight: 600; font-size: .92rem; }

select, input[type="text"], input[type="password"], input[type="search"], textarea {
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: .55rem .7rem; min-width: 0;
  font-size: 1rem; /* verhindert Zoom auf iOS */
}
input[type="text"], input[type="password"], textarea { width: 100%; }

/* Anmelden */
.auth { max-width: 420px; margin: 2rem auto 0; padding: 1.4rem; }
.tabs { display: grid; grid-template-columns: 1fr 1fr; gap: .25rem; background: var(--bg); border-radius: 12px; padding: .25rem; margin-bottom: 1.2rem; }
.tabs button { border: 0; background: none; padding: .55rem; border-radius: 9px; font-weight: 600; color: var(--muted); }
.tabs button[aria-selected="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 3px rgba(18, 48, 60, .15); }

/* Lernen */
.layout { display: grid; gap: 1.25rem; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 860px) { .layout { grid-template-columns: minmax(0, 1fr) 280px; } }
.toolbar { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-bottom: 1rem; }
.toolbar label { font: 500 .72rem var(--f-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.count { margin-left: auto; font: 500 .8rem var(--f-mono); color: var(--muted); font-variant-numeric: tabular-nums; }

.stage { perspective: 1400px; }
.card {
  position: relative; width: 100%; min-height: 300px; border: 0; padding: 0; background: none; text-align: left;
  transform-style: preserve-3d; transition: transform .5s cubic-bezier(.3,.7,.2,1);
}
.card.flipped { transform: rotateY(180deg); }
.face {
  position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden;
  background: var(--surface); border: 1px solid var(--line); border-radius: 18px;
  padding: clamp(1.25rem, 4vw, 2.25rem); display: flex; flex-direction: column; gap: 1rem;
  box-shadow: 0 12px 30px -18px rgba(18, 48, 60, .45);
}
.face.back { transform: rotateY(180deg); border-color: var(--lake); }
.meta { display: flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
.chip { font: 500 .7rem var(--f-mono); letter-spacing: .06em; text-transform: uppercase; padding: .2rem .55rem; border-radius: 999px; background: var(--lake-soft); color: var(--lake); }
.chip.ex { background: transparent; border: 1px dashed var(--signal); color: var(--signal); }
.chip.box { background: transparent; border: 1px solid var(--line); color: var(--muted); }
.face .text { font: 500 clamp(1.25rem, 3.6vw, 1.75rem)/1.3 var(--f-display); text-wrap: balance; flex: 1; display: flex; align-items: center; overflow-wrap: anywhere; }
.face.back .text { font: 400 clamp(1.05rem, 2.8vw, 1.3rem)/1.5 var(--f-body); white-space: pre-line; }
.hint { font-size: .85rem; color: var(--muted); }

.actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6rem; margin-top: 1rem; }
.btn { border: 1px solid var(--line); background: var(--surface); border-radius: 12px; padding: .75rem 1rem; font-weight: 600; }
.btn.primary { background: var(--lake); border-color: var(--lake); color: var(--surface); }
.actions .btn.primary { grid-column: 1 / -1; }
.btn.good { border-color: var(--good); color: var(--good); }
.btn.bad { border-color: var(--bad); color: var(--bad); }
.btn:hover { filter: brightness(1.05); }
.btn:disabled { opacity: .6; cursor: wait; }
.btn kbd { font: 500 .7rem var(--f-mono); opacity: .6; margin-left: .35rem; }
@media (hover: none) { .btn kbd { display: none; } }

.empty { background: var(--surface); border: 1px dashed var(--line); border-radius: 18px; padding: 2rem; text-align: center; color: var(--muted); }
.empty strong { display: block; color: var(--ink); font: 700 1.2rem var(--f-display); margin-bottom: .35rem; }

.boxes { display: grid; gap: .5rem; }
.boxrow { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr) 2rem; gap: .6rem; align-items: center; font-size: .85rem; }
.boxrow span:first-child { color: var(--muted); }
.bar { height: 8px; background: var(--lake-soft); border-radius: 99px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--lake); border-radius: 99px; }
.boxrow b { font: 500 .8rem var(--f-mono); text-align: right; font-variant-numeric: tabular-nums; }
.legend { font-size: .82rem; color: var(--muted); margin: .9rem 0; }
.confirm { display: grid; gap: .5rem; margin-top: .6rem; }

/* Karten */
.manage { display: grid; gap: 1.25rem; grid-template-columns: minmax(0, 1fr); align-items: start; }
@media (min-width: 860px) { .manage { grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); } .manage.readonly { grid-template-columns: minmax(0, 1fr); } }
.list-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .6rem; margin-bottom: .75rem; }
.list-head h2 { margin: 0; }
.filters { display: flex; flex-wrap: wrap; gap: .5rem; flex: 1 1 260px; justify-content: flex-end; }
.filters select, .filters input { flex: 1 1 120px; }
form { display: grid; gap: .7rem; }
form label { font-weight: 600; font-size: .9rem; display: grid; gap: .3rem; }
textarea { resize: vertical; min-height: 5rem; }
.list { display: grid; gap: .6rem; max-height: 70vh; overflow: auto; }
.item { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .5rem; align-items: start; border-bottom: 1px solid var(--line); padding-bottom: .6rem; }
.item.editing { background: var(--lake-soft); border-radius: 10px; padding: .5rem; }
.item p { margin: .15rem 0 0; overflow-wrap: anywhere; }
.item .note { white-space: pre-line; }
.item-actions { display: flex; flex-direction: column; gap: .35rem; }
.item-actions button { background: none; border: 1px solid var(--line); border-radius: 8px; padding: .25rem .6rem; font-size: .8rem; }
.item-actions .edit { color: var(--lake); }
.item-actions .del { color: var(--bad); }
.item-actions .del.armed { background: var(--bad); color: var(--surface); border-color: var(--bad); }
.io { display: grid; gap: .6rem; margin-top: 1.4rem; padding-top: 1.1rem; border-top: 1px solid var(--line); }
.io h2 { margin: 0; }
.check { display: flex !important; align-items: center; gap: .45rem; font-weight: 400 !important; font-size: .9rem; }
.toast { position: fixed; left: 50%; bottom: calc(1rem + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: .6rem 1rem; border-radius: 10px; font-size: .9rem; max-width: calc(100% - 32px); }
.loading { text-align: center; color: var(--muted); padding: 3rem 0; }
code { font: 500 .82rem var(--f-mono); background: var(--lake-soft); padding: .05rem .3rem; border-radius: 4px; overflow-wrap: anywhere; }

@media (prefers-reduced-motion: reduce) { .card { transition: none; } }

/* Passwort vergessen / zurücksetzen */
.auth h2 { font-size: 1.2rem; }
.auth form > .link { justify-self: center; margin-top: .2rem; }
.success { margin: 0; color: var(--good); font-weight: 600; font-size: .92rem; }
input[type="email"] { width: 100%; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: .55rem .7rem; font-size: 1rem; min-width: 0; }

/* Benutzerverwaltung */
.users-layout { display: grid; gap: 1.25rem; grid-template-columns: minmax(0, 1fr); align-items: start; }
@media (min-width: 860px) { .users-layout.has-admin { grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); } }
.users-layout:not(.has-admin) .account { max-width: 560px; }
.facts { display: grid; gap: .5rem; margin: 0 0 .5rem; }
.facts div { display: grid; grid-template-columns: 7.5rem minmax(0, 1fr); gap: .5rem; align-items: baseline; }
.facts dt { font: 500 .72rem var(--f-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.facts dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }
.acc { border-top: 1px solid var(--line); padding-block: .75rem; }
.acc:last-child { padding-bottom: 0; }
.acc summary { cursor: pointer; font-weight: 600; color: var(--lake); list-style-position: inside; }
.acc[open] summary { margin-bottom: .75rem; }
.acc form .btn { justify-self: start; }
.danger-zone summary { color: var(--bad); }
.chip.role-admin { background: var(--signal); color: var(--surface); }
.chip.role-editor { background: var(--lake); color: var(--surface); }
.roles-help { margin-bottom: .75rem; }
.user-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .4rem .75rem; align-items: center; border-bottom: 1px solid var(--line); padding-bottom: .65rem; }
.user-row .who strong { overflow-wrap: anywhere; }
.user-row .who .note { overflow-wrap: anywhere; }
.user-row .ctrl { display: flex; gap: .4rem; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.user-row select { padding: .35rem .5rem; font-size: .9rem; }
.user-row .del { background: none; border: 1px solid var(--line); border-radius: 8px; padding: .35rem .6rem; font-size: .85rem; color: var(--bad); }
.user-row .mini { background: none; border: 1px solid var(--line); border-radius: 8px; padding: .35rem .6rem; font-size: .85rem; color: inherit; }
.user-row .mini.primary { background: var(--lake); border-color: var(--lake); color: var(--surface); }
.user-row .mini[aria-expanded="true"] { border-color: var(--lake); color: var(--lake); }
.user-row .mini:disabled { opacity: .6; cursor: wait; }
.user-row .email-edit { grid-column: 1 / -1; display: flex; gap: .4rem; flex-wrap: wrap; align-items: center; }
.user-row .email-edit input { flex: 1 1 14rem; min-width: 0; padding: .4rem .55rem; font-size: .95rem; }
.user-row .del.armed { background: var(--bad); color: var(--surface); border-color: var(--bad); }
.you { font: 500 .7rem var(--f-mono); color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-left: .35rem; }
@media (max-width: 520px) { .user-row { grid-template-columns: minmax(0, 1fr); } .user-row .ctrl { justify-content: flex-start; } }