/* Lärplattformens utseende. Samma typsnitt och färgvärld som simuleringarna. */
:root {
  --bg: #edf0f2; --surface: #fbfcfc; --sunk: #e3e8ec; --fg: #18212a; --muted: #5a6773; --line: #d2d9df;
  --accent: #c04d1a; --accent-ink: #fff; --good: #2b8653; --warn: #a96f14; --crit: #c0392b; --info: #2c7db3;
  --f-display: "Saira Condensed", "Arial Narrow", sans-serif;
  --f-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --top-h: 56px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #11161b; --surface: #171e24; --sunk: #0d1216; --fg: #e4e9ed; --muted: #93a0ab; --line: #28323b;
    --accent: #ff8b45; --accent-ink: #1a0f08; --good: #4cc27e; --warn: #e2a93b; --crit: #ff6b5b; --info: #5aaee6; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #11161b; --surface: #171e24; --sunk: #0d1216; --fg: #e4e9ed; --muted: #93a0ab; --line: #28323b;
  --accent: #ff8b45; --accent-ink: #1a0f08; --good: #4cc27e; --warn: #e2a93b; --crit: #ff6b5b; --info: #5aaee6; color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font-family: var(--f-body); font-size: 15px; line-height: 1.5; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--f-display); font-weight: 600; line-height: 1.1; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(30px, 4.4vw, 46px); font-weight: 700; }
h2 { font-size: 24px; }
h3 { font-size: 19px; }
p { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.muted { color: var(--muted); }
.mono { font-family: var(--f-mono); }
.eyebrow { font-family: var(--f-mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }

/* ---------- toppmeny ---------- */
.top {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; height: var(--top-h);
  display: flex; align-items: center; gap: 20px;
  padding: 0 max(16px, env(safe-area-inset-right)) 0 max(16px, env(safe-area-inset-left));
  background: var(--surface); border-bottom: 1px solid var(--line);
}
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 21; background: var(--surface); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--f-display); font-weight: 600; font-size: 19px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.brand-mark { width: 22px; height: 22px; border-radius: 5px; flex: none; background: linear-gradient(135deg, var(--accent) 0 50%, var(--info) 50% 100%); }
.top-nav { display: flex; gap: 2px; margin-left: auto; }
.top-nav a { text-decoration: none; padding: 6px 11px; border-radius: 6px; font-weight: 500; font-size: 14px; color: var(--muted); white-space: nowrap; }
.top-nav a:hover { color: var(--fg); background: var(--sunk); }
.top-nav a[aria-current="page"] { color: var(--fg); background: var(--sunk); }
.top-right { display: flex; align-items: center; gap: 10px; }
.who { font-size: 13px; color: var(--muted); white-space: nowrap; }
.icon-btn { width: 34px; height: 34px; border-radius: 6px; border: 1px solid var(--line); background: transparent; cursor: pointer; font-size: 16px; }
@media (max-width: 760px) {
  .top { gap: 8px; }
  .brand span:last-child, .who { display: none; }
  .top-nav { margin-left: 0; overflow-x: auto; }
  .top-nav a { padding: 6px 8px; }
}

/* ---------- allmänt ---------- */
.page { max-width: 1120px; margin: 0 auto; padding: 32px max(16px, env(safe-area-inset-right)) 64px max(16px, env(safe-area-inset-left)); display: grid; gap: 28px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 20px; min-width: 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 1px solid var(--line); background: var(--surface); border-radius: 7px; padding: 8px 14px; cursor: pointer; font-weight: 500; font-size: 14px; text-decoration: none; white-space: nowrap; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.small { padding: 5px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: default; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.field { display: grid; gap: 4px; }
.field label { font-weight: 500; font-size: 14px; }
.field input, textarea, select { border: 1px solid var(--line); background: var(--surface); border-radius: 7px; padding: 9px 11px; width: 100%; }
textarea { min-height: 120px; resize: vertical; line-height: 1.5; }
.pill { display: inline-flex; align-items: center; gap: 6px; font-family: var(--f-mono); font-size: 12px; padding: 2px 9px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); white-space: nowrap; }
.pill.good { color: var(--good); border-color: color-mix(in srgb, var(--good) 45%, transparent); background: color-mix(in srgb, var(--good) 10%, transparent); }
.pill.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, transparent); }
.bar { height: 6px; border-radius: 3px; background: var(--sunk); overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--accent); width: 0; transition: width .3s; }
.bar.good i { background: var(--good); }

/* ---------- start och kursöversikt ---------- */
.hero { display: grid; gap: 10px; max-width: 72ch; }
.hero .lede { color: var(--muted); font-size: 16px; }
.login { max-width: 460px; display: grid; gap: 14px; }
.modgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 16px; }
.mod { display: grid; gap: 12px; align-content: start; text-decoration: none; transition: border-color .15s; position: relative; }
.mod:hover { border-color: var(--muted); }
.mod .num { font-family: var(--f-mono); font-size: 12px; color: var(--accent); }
.mod p { color: var(--muted); font-size: 14px; }
.mod .meta { display: flex; flex-wrap: wrap; gap: 6px; }
.mod-foot { display: grid; gap: 6px; margin-top: 4px; }
.mod-foot .lbl { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); }

/* ---------- modulsida ---------- */
.modhead { display: grid; gap: 8px; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); overflow-x: auto; }
.tabs a { padding: 10px 14px; text-decoration: none; font-weight: 500; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tabs a[aria-current="page"] { color: var(--fg); border-color: var(--accent); }
.tabs a:hover { color: var(--fg); }
.two { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 20px; align-items: start; }
@media (max-width: 860px) { .two { grid-template-columns: minmax(0, 1fr); } }
.prose { display: grid; gap: 12px; max-width: 70ch; }
.goals { margin: 0; padding-left: 20px; display: grid; gap: 6px; }
.gloss { display: grid; grid-template-columns: max-content 1fr; gap: 8px 14px; margin: 0; }
.gloss dt { font-family: var(--f-mono); font-size: 13px; font-weight: 500; }
.gloss dd { margin: 0; color: var(--muted); font-size: 14px; }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.checklist li { display: flex; gap: 10px; align-items: baseline; font-size: 14px; }
.tick { width: 18px; height: 18px; border-radius: 50%; border: 1.5px solid var(--line); flex: none; display: inline-grid; place-items: center; font-size: 11px; transform: translateY(3px); }
.tick.done { background: var(--good); border-color: var(--good); color: #fff; }

/* ---------- labb ---------- */
.lab { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 0; min-height: calc(100vh - var(--top-h)); }
.lab-side { position: sticky; top: calc(var(--top-h) + env(safe-area-inset-top, 0px)); height: calc(100vh - var(--top-h)); overflow-y: auto; background: var(--surface); border-right: 1px solid var(--line); padding: 18px 16px 32px; display: grid; gap: 14px; align-content: start; }
.lab-main { min-width: 0; }
.lab-main iframe { display: block; width: 100%; border: 0; height: calc(100vh - var(--top-h)); background: var(--bg); }
@media (max-width: 1000px) {
  .lab { grid-template-columns: minmax(0, 1fr); }
  .lab-side { position: relative; top: 0; height: auto; max-height: none; border-right: 0; border-bottom: 1px solid var(--line); }
}
.lab-head { display: grid; gap: 6px; }
.lab-head .back { font-size: 13px; color: var(--muted); text-decoration: none; }
.lab-head .back:hover { color: var(--fg); }
.lab-head h2 { font-size: 22px; }
.conn { font-size: 12px; font-family: var(--f-mono); color: var(--muted); display: flex; align-items: center; gap: 6px; }
.conn::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--warn); }
.conn.on::before { background: var(--good); }
.tasks { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.task { border: 1px solid var(--line); border-radius: 9px; background: var(--bg); overflow: hidden; }
.task > button.task-h { all: unset; box-sizing: border-box; width: 100%; display: grid; grid-template-columns: 22px 1fr auto; gap: 10px; align-items: center; padding: 10px 12px; cursor: pointer; }
.task > button.task-h:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.task .tn { font-family: var(--f-mono); font-size: 12px; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; border: 1.5px solid var(--line); color: var(--muted); }
.task.done .tn { background: var(--good); border-color: var(--good); color: #fff; }
.task .tt { font-weight: 600; font-size: 14px; line-height: 1.3; }
.task .tk { font-family: var(--f-mono); font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.task.open { background: var(--surface); border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); box-shadow: 0 1px 0 var(--line); }
.task-b { padding: 0 12px 14px 44px; display: grid; gap: 10px; font-size: 14px; }
.task-b details { font-size: 13.5px; color: var(--muted); }
.task-b summary { cursor: pointer; color: var(--fg); font-weight: 500; }
.cond { border-radius: 7px; padding: 9px 11px; background: var(--sunk); display: grid; gap: 6px; font-size: 13px; }
.cond .ck { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.cond .ck::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--muted); flex: none; }
.cond[data-s="hold"] .ck::before { background: var(--warn); box-shadow: 0 0 0 3px color-mix(in srgb, var(--warn) 25%, transparent); }
.cond[data-s="done"] .ck::before { background: var(--good); }
.cond[data-s="done"] { background: color-mix(in srgb, var(--good) 12%, var(--sunk)); }
.cond .bar i { background: var(--warn); transition: width .2s linear; }
.lab-foot { display: grid; gap: 8px; padding-top: 6px; border-top: 1px solid var(--line); }

/* ---------- test ---------- */
.quiz { display: grid; gap: 16px; max-width: 780px; }
.q { display: grid; gap: 10px; }
.q legend { font-weight: 600; padding: 0; margin-bottom: 8px; font-size: 15.5px; }
.q fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
.opt { display: flex; gap: 10px; align-items: flex-start; padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; cursor: pointer; margin-top: 6px; background: var(--surface); }
.opt:hover { border-color: var(--muted); }
.opt input { margin-top: 4px; accent-color: var(--accent); }
.opt.right { border-color: var(--good); background: color-mix(in srgb, var(--good) 10%, var(--surface)); }
.opt.wrong { border-color: var(--crit); background: color-mix(in srgb, var(--crit) 8%, var(--surface)); }
.fb { font-size: 14px; color: var(--muted); border-left: 3px solid var(--line); padding-left: 10px; }
.fb.ok { border-color: var(--good); }
.fb.no { border-color: var(--crit); }
.score { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; }
.score b { font-family: var(--f-display); font-size: 34px; }

/* ---------- tabeller ---------- */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 500; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td.num { font-family: var(--f-mono); white-space: nowrap; font-variant-numeric: tabular-nums; }
tbody tr.click { cursor: pointer; }
tbody tr.click:hover td { background: var(--sunk); }
.answers { display: grid; gap: 14px; }
.answers .a { display: grid; gap: 4px; }
.answers .a p { white-space: pre-wrap; background: var(--sunk); border-radius: 7px; padding: 10px 12px; font-size: 14px; }
.drop { border: 1.5px dashed var(--line); border-radius: 10px; padding: 22px; text-align: center; color: var(--muted); }
.drop.over { border-color: var(--accent); color: var(--fg); }

/* ---------- toast ---------- */
.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none; transition: .25s; background: var(--fg); color: var(--bg); padding: 10px 16px; border-radius: 8px; font-weight: 500; font-size: 14px; z-index: 50; max-width: calc(100vw - 32px); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- utskrift ---------- */
@media print {
  .top, .noprint, .toast { display: none !important; }
  body { background: #fff; color: #000; }
  .page { padding: 0; }
  .card, .tbl-wrap { border-color: #bbb; }
}