/* Shared look for the room-based tools. Phone-first (verified 320-1280px); products add their own CSS on top. */
:root {
  --bg: #f4f5f8;
  --panel: #fff;
  --text: #1c2030;
  --muted: #6b7185;
  --border: #dfe2ea;
  --accent: #5b5bf0;
  --accent-text: #fff;
  --link: #4338ca;
  --good: #1a9b55;
  --warn: #c0392b;
  --caution: #b7791f;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161f; --panel: #1d2030; --text: #e8eaf2; --muted: #8b91a8; --border: #2e3248; --link: #a5b4fc;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }          /* iOS must not re-scale text on rotate */
body { overflow-x: hidden; margin: 0; font: 16px/1.4 system-ui, sans-serif; background: var(--bg); color: var(--text); }
[hidden] { display: none !important; }
a { color: var(--link); }
a:hover { text-decoration: underline; }
h1 { margin: 0 0 8px; font-size: 26px; }
h2 { margin: 0 0 8px; font-size: 18px; }
hr { border: 0; border-top: 1px solid var(--border); margin: 16px 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.error { color: var(--warn); }

/* ---- controls ---- */
input, select, textarea { min-width: 0; }
input, textarea, select {
  font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 12px; width: 100%;
}
input[type="checkbox"], input[type="radio"] { width: auto; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
textarea { resize: vertical; }
button {
  font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 9px 16px; cursor: pointer;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .45; cursor: default; }
button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); font-weight: 600; }
button.big { font-size: 18px; padding: 14px 28px; }
button.ghost { background: transparent; }
button, input, select, textarea { overflow-wrap: normal; }   /* never split a button label or a card's digits */
.row { display: flex; gap: 8px; }
.stack { display: grid; gap: 14px; }

/* ---- layout ---- */
.rs-bar {
  position: relative; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px;
  padding: 12px 20px; border-bottom: 1px solid var(--border); background: var(--panel); overflow-wrap: anywhere;
}
.rs-brand { font-weight: 700; color: var(--text); text-decoration: none; white-space: nowrap; }
.rs-room-info { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.rs-room-info button { white-space: nowrap; }
.rs-token { font: 600 15px ui-monospace, monospace; letter-spacing: .1em; white-space: nowrap; }
.rs-status { width: 10px; height: 10px; border-radius: 50%; background: var(--warn); }
.rs-status.on { background: var(--good); }

.rs-main { max-width: 1100px; margin: 24px auto; padding: 0 16px; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; margin-bottom: 16px; overflow-wrap: anywhere; }
.narrow { max-width: 460px; margin: 60px auto; text-align: center; }
.rs-or { margin: 20px 0 10px; color: var(--muted); font-size: 13px; }

.rs-paused { background: var(--caution); color: #fff; text-align: center; padding: 8px 16px; font-size: 14px; }

/* "Joining the room…": fades in only if connecting takes a moment, so quick joins don't flash it */
.rs-connecting { opacity: 0; animation: rs-appear .25s ease .4s forwards; }
@keyframes rs-appear { to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .rs-connecting { animation-duration: 0s; } }

/* ---- room settings (host) ---- */
.rs-settings summary { cursor: pointer; font-weight: 600; }
.rs-settings fieldset { border: 0; padding: 0; margin: 12px 0 0; display: grid; gap: 14px; }
.rs-settings label { display: grid; gap: 4px; }
.rs-settings fieldset:disabled { opacity: .6; }
.rs-settings button { justify-self: start; }
.rs-downloads { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

/* ---- phones ---- */
@media (max-width: 600px) {
  .rs-main { margin: 12px auto; padding: 0 10px; }
  .panel { padding: 12px; margin-bottom: 12px; border-radius: 10px; }
  .narrow { margin: 24px auto; }
  h1 { font-size: 22px; }

  /* header: brand on the first line, controls on the second, the connection dot in the corner */
  .rs-bar { padding: 10px 12px 8px; gap: 6px; }
  .rs-room-info { width: 100%; flex-wrap: nowrap; justify-content: space-between; gap: 8px; }
  .rs-room-info button { padding: 6px 10px; font-size: 14px; }
  .rs-token { font-size: 13px; letter-spacing: .05em; flex: 1; text-align: center; }
  .rs-status { position: absolute; top: 18px; right: 14px; }

  /* big enough to tap, and 16px+ so iOS doesn't zoom the page when you focus a field */
  button { min-height: 40px; }
  input, select, textarea { font-size: 16px; }
}

/* very narrow phones (320px): the header's controls can't all share a line, so the token gets its own */
@media (max-width: 380px) {
  .rs-room-info { flex-wrap: wrap; row-gap: 4px; }
  .rs-token { flex: 1 1 100%; order: 3; }
}

.rs-gap { margin-top: 12px; }