/* Presentr Teilnehmerseite — mobile-first, keine externen Ressourcen.
   Anmutung: system font stack, kontrastreich, Touch-Ziele >= 44 px. */

:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --ink: #16181d;
  --ink-soft: #4d535e;
  --line: #d9dce3;
  --accent: #1d4ed8;
  --accent-ink: #ffffff;
  --ok: #14763c;
  --warn: #9a3412;
  --err: #b42318;
  --bar: #bfd3ff;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101216;
    --card: #191c22;
    --ink: #eceef2;
    --ink-soft: #a5acba;
    --line: #2b2f38;
    --accent: #7aa2ff;
    --accent-ink: #0b1220;
    --ok: #4ade80;
    --warn: #fdba74;
    --err: #fca5a5;
    --bar: #33507e;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px max(16px, env(safe-area-inset-left)) 12px max(16px, env(safe-area-inset-left));
  border-bottom: 1px solid var(--line);
  background: var(--card);
  position: sticky;
  top: 0;
}

.brand { font-weight: 700; letter-spacing: 0.02em; }

.net {
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  white-space: nowrap;
}
.net-connected  { color: var(--ok);   border-color: currentColor; }
.net-reconnecting, .net-connecting { color: var(--warn); border-color: currentColor; }
.net-offline, .net-expired { color: var(--err); border-color: currentColor; }

main {
  flex: 1;
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 20px 16px calc(28px + env(safe-area-inset-bottom));
}

h1 { font-size: clamp(22px, 6vw, 28px); margin: 8px 0 12px; }
h2 { font-size: clamp(17px, 4.6vw, 20px); margin: 0 0 6px; }

.hint { color: var(--ink-soft); font-size: 15px; }
.code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 1.05em;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.code-sample { font-family: ui-monospace, monospace; letter-spacing: 0.3em; }

label { display: block; font-weight: 600; margin: 14px 0 6px; }

input[type="text"], input[type="range"] {
  width: 100%;
  font: inherit;
  color: inherit;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  min-height: 48px;
}
input[type="text"]:focus-visible, .btn:focus-visible, button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}
#code-input {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 24px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  text-align: center;
}

input[type="range"] { padding: 0 6px; accent-color: var(--accent); }

.btn {
  appearance: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  color: var(--ink);
  font: inherit;
  font-weight: 600;
  min-height: 48px;
  padding: 10px 18px;
  margin: 4px 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.btn:active { transform: scale(0.99); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.block { width: 100%; margin-top: 14px; }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

.opt {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  text-align: left;
  font-size: 17px;
}
.opt[aria-pressed="true"] {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 2px var(--accent);
}
.opt .count { color: var(--ink-soft); font-variant-numeric: tabular-nums; font-weight: 500; }

.poll-list { display: flex; flex-direction: column; gap: 16px; }

.poll {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
}
.poll-status { color: var(--ink-soft); font-size: 14px; margin: 0 0 10px; }
.poll-status .open-flag { color: var(--ok); font-weight: 600; }
.poll-status .closed-flag { color: var(--warn); font-weight: 600; }

.scale-row { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.scale-value {
  font-size: 28px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.scale-labels { display: flex; justify-content: space-between; color: var(--ink-soft); font-size: 13px; }

.feedback { min-height: 22px; font-size: 14px; margin: 8px 0 0; }
.feedback.ok { color: var(--ok); }
.feedback.error { color: var(--err); }

.results { margin-top: 14px; border-top: 1px dashed var(--line); padding-top: 12px; }
.results h3 { font-size: 14px; margin: 0 0 8px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.06em; }
.result-row { margin: 6px 0; }
.result-row .line { display: flex; justify-content: space-between; gap: 8px; font-size: 15px; }
.result-row .bar-track { background: var(--line); border-radius: 999px; height: 10px; margin-top: 4px; overflow: hidden; }
.result-row .bar { background: var(--bar); height: 100%; border-radius: 999px; transition: width 300ms ease; }
.avg { font-size: 26px; font-weight: 700; margin: 2px 0 10px; }
.avg small { font-size: 14px; color: var(--ink-soft); font-weight: 500; }

.cloud { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: baseline; }
.cloud .word { line-height: 1.1; font-weight: 600; }

.privacy { color: var(--ink-soft); font-size: 13px; max-width: 640px; margin: 24px auto 0; padding: 0 16px; }

@media (min-width: 480px) {
  .opt { min-height: 52px; }
}