/* Agent Room: a debate set. Navy stage, two podiums, lower-third straps. */
:root {
  --navy: #1A2A6C;
  --navy-deep: #121E52;
  --navy-line: #2A3B85;
  --blue: #2E6FA3;
  --teal: #00B4D8;
  --peri: #6B7FD4;
  --tally: #D93A3F;
  --amber: #F2A93B;

  --on-navy: #FFFFFF;
  --on-navy-soft: #C7D0F0;
  --on-teal: #06212E;
  --on-peri: #FFFFFF;
  --strap-peri: #4C5CC4;

  --ground: #F3F5FA;
  --panel: #FFFFFF;
  --panel-2: #E8ECF6;
  --ink: #10162F;
  --ink-soft: #55607E;
  --hairline: #D6DCEC;
  --marvel-ink: #00718C;
  --brian-ink: #4C5CC4;
  --host-strap: #10162F;
  --on-host: #FFFFFF;
  --focus: #00B4D8;
  --code-bg: #0E1638;
  --code-ink: #E6EBFF;
  --error: #B42318;

  --font: "Archivo", "Noto Kufi Arabic", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 12px;
  --gutter: 16px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0B1022;
    --panel: #121A36;
    --panel-2: #18224A;
    --ink: #E9ECF7;
    --ink-soft: #9AA3C0;
    --hairline: #232E5A;
    --marvel-ink: #5CD3EC;
    --brian-ink: #9EABF2;
    --host-strap: #F3EEE4;
    --on-host: #0B1022;
    --code-bg: #070B1A;
    --error: #FF8A80;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--ground);
  color: var(--ink);
  font: 400 16px/1.55 var(--font);
  font-variation-settings: "wdth" 100;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
[hidden] { display: none !important; }
p { margin: 0; }
button { font-family: var(--font); }
h1, h2 { margin: 0; }
::selection { background: color-mix(in srgb, var(--teal) 35%, transparent); color: inherit; }
textarea, input { caret-color: var(--teal); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 6px; }
* { scrollbar-width: thin; scrollbar-color: var(--hairline) transparent; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.icon--sm { width: 16px; height: 16px; }

/* Condensed broadcast voice: straps, podiums, labels. */
.wordmark, .podium-name, .strap-name, .slate-title, .slate-podium, .meter-label, .cue, .side-subtitle, .day, .empty-title, .ticker-label, #side-title {
  font-variation-settings: "wdth" 66;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.meter-label, .ticker-label, .day { letter-spacing: 0.08em; }

/* Buttons */
.btn { min-height: 48px; border: 0; border-radius: 10px; font: 700 1rem/1 var(--font); cursor: pointer; padding: 0 1.25rem; transition: transform 160ms var(--ease-out), background 160ms; }
.btn--primary { background: var(--teal); color: var(--on-teal); }
.btn--primary:hover { background: #33C6E3; }
.btn--primary:active { transform: translateY(1px); }
.btn[disabled] { opacity: 0.6; cursor: progress; }
.form-error { color: var(--error); font-size: 0.9rem; min-height: 1.4em; }
.link-btn { background: none; border: 0; color: inherit; font: 600 0.9rem var(--font); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; min-height: 44px; padding: 0 0.4rem; }

/* ---------- Login slate ---------- */
.slate {
  min-height: 100%;
  background: var(--navy);
  color: var(--on-navy);
  display: grid; place-items: center;
  padding: 48px var(--gutter);
}
.slate-inner { width: 100%; max-width: 420px; }
.slate-set { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0 0 32px; padding-bottom: 10px; position: relative; }
.slate-set::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: linear-gradient(90deg, var(--teal) 0 50%, var(--peri) 50% 100%); }
.slate-podium { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px; background: var(--navy-deep); border: 1px solid var(--navy-line); }
.slate-podium--brian { justify-content: flex-end; text-align: right; }
.slate-podium b { display: block; font-weight: 800; font-size: 1.1rem; line-height: 1.1; }
.slate-podium--marvel b { color: #7FE3F5; }
.slate-podium--brian b { color: #B8C2FF; }
.slate-podium small { display: block; font-size: 0.75rem; color: var(--on-navy-soft); text-transform: none; letter-spacing: 0; font-variation-settings: "wdth" 100; }
.slate-podium .tally { flex: none; }
.slate-title { font-size: clamp(3.5rem, 18vw, 6rem); line-height: 0.88; font-weight: 800; letter-spacing: -0.01em; }
.slate-sub { margin: 18px 0 28px; color: var(--on-navy-soft); font-size: 1.05rem; max-width: 34ch; }
.slate-form { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 0.85rem; font-weight: 600; color: var(--on-navy-soft); }
.field input {
  min-height: 52px; padding: 0 14px; border-radius: 10px;
  border: 1px solid var(--navy-line); background: var(--navy-deep); color: var(--on-navy);
  font: 500 1.05rem var(--font);
  transition: border-color 160ms, box-shadow 160ms;
}
.field input:hover { border-color: #3E51A8; }
.field input:focus-visible { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px color-mix(in srgb, var(--teal) 40%, transparent); }
.slate .form-error { color: #FFB4AB; }

/* ---------- Room shell ---------- */
.room { height: 100dvh; display: flex; flex-direction: column; }
.stage {
  flex: none; background: var(--navy); color: var(--on-navy);
  padding: max(10px, env(safe-area-inset-top)) var(--gutter) 0;
  position: relative; z-index: 3;
}
.stage::after { /* the split stage: Marvel's half, Brian's half */
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: linear-gradient(90deg, var(--teal) 0 50%, var(--peri) 50% 100%);
}
.stage-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; max-width: 880px; margin: 0 auto; }
.wordmark { font-size: 1.35rem; font-weight: 800; }
.stage-actions { display: flex; gap: 4px; }
.icon-btn {
  min-width: 44px; min-height: 44px; padding: 0 10px; border: 0; border-radius: 10px;
  background: transparent; color: var(--on-navy); display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: 600 0.9rem var(--font); cursor: pointer; position: relative; transition: background 160ms;
}
.icon-btn:hover { background: rgba(255, 255, 255, 0.1); }
.icon-btn[aria-expanded="true"] { background: rgba(255, 255, 255, 0.16); }
.icon-btn--quiet { color: var(--ink-soft); }
.icon-btn--quiet:hover { background: var(--panel-2); }
.count { min-width: 20px; height: 20px; padding: 0 6px; border-radius: 10px; background: var(--amber); color: #2A1A00; font-size: 0.75rem; font-weight: 800; display: inline-grid; place-items: center; }

.podiums { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px auto 0; max-width: 880px; }
.podium {
  display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; column-gap: 10px; align-items: center;
  padding: 10px 12px; border-radius: 10px; background: var(--navy-deep); border: 1px solid var(--navy-line);
  transition: background 300ms var(--ease-out), border-color 300ms;
}
.podium--brian { grid-template-columns: 1fr auto; text-align: right; }
.podium--brian .tally { grid-column: 2; grid-row: 1; }
.podium--brian .podium-id { grid-column: 1; grid-row: 1; }
.podium-id { min-width: 0; }
.podium-name { font-size: 1.15rem; font-weight: 800; line-height: 1.1; }
.podium--marvel .podium-name { color: #7FE3F5; }
.podium--brian .podium-name { color: #B8C2FF; }
.podium-role { font-size: 0.78rem; color: var(--on-navy-soft); }
.podium-state { grid-column: 1 / -1; margin-top: 6px; font-size: 0.8rem; font-weight: 600; color: var(--on-navy-soft); }
.tally { width: 12px; height: 12px; border-radius: 50%; background: #34407A; box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.4); transition: background 200ms, box-shadow 200ms; }
.podium[data-state="cued"] { border-color: var(--amber); }
.podium[data-state="cued"] .tally { background: var(--amber); }
.podium[data-state="cued"] .podium-state { color: #FFD38A; }
.podium[data-state="onair"] { background: #26193F; border-color: var(--tally); }
.podium[data-state="onair"] .tally { background: var(--tally); box-shadow: none; outline: 2px solid #FFB1B3; outline-offset: 2px; }
.podium[data-state="onair"] .podium-state { color: #FFB1B3; }

.meter { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 10px; max-width: 880px; margin: 10px auto 0; padding-bottom: 12px; font-size: 0.75rem; color: var(--on-navy-soft); }
.meter-label { font-weight: 600; }
.meter-track { height: 4px; border-radius: 2px; background: #2C3870; overflow: hidden; }
.meter-fill { display: block; height: 100%; width: 0; background: var(--on-navy-soft); transition: width 400ms var(--ease-out), background 200ms; }
.meter[data-level="warn"] .meter-fill { background: var(--amber); }
.meter[data-level="full"] .meter-fill { background: var(--on-navy); }
.meter-value { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--on-navy); }

.room-body { flex: 1; min-height: 0; display: flex; position: relative; }
.feed-wrap { flex: 1; overflow-y: auto; overscroll-behavior: contain; padding: 20px var(--gutter) 28px; }
.feed { list-style: none; margin: 0 auto; padding: 0; max-width: 880px; display: grid; gap: 22px; }

/* Day marker */
.day { display: flex; align-items: center; gap: 12px; color: var(--ink-soft); font-size: 0.78rem; font-weight: 700; }
.day::before, .day::after { content: ""; flex: 1; height: 1px; background: var(--hairline); }

/* ---------- Messages ---------- */
.msg { display: grid; gap: 8px; max-width: min(100%, 720px); }
.msg--brian { justify-self: end; }
.strap { display: flex; align-items: stretch; flex-wrap: wrap; width: fit-content; max-width: 100%; border-radius: 4px; overflow: hidden; }
.msg--brian .strap { margin-left: auto; flex-direction: row-reverse; }
.strap-name { padding: 5px 10px 4px; font-size: 0.95rem; font-weight: 800; line-height: 1.2; }
.strap-role { padding: 5px 10px 4px; font-size: 0.78rem; font-weight: 600; line-height: 1.5; display: flex; align-items: center; }
.msg--marvel .strap-name { background: var(--teal); color: var(--on-teal); }
.msg--marvel .strap-role { background: var(--navy); color: var(--on-navy-soft); }
.msg--brian .strap-name { background: var(--strap-peri); color: var(--on-peri); }
.msg--brian .strap-role { background: var(--navy); color: var(--on-navy-soft); }
.msg--host .strap-name { background: var(--host-strap); color: var(--on-host); }
.msg--host .strap-role { background: var(--panel-2); color: var(--ink-soft); }
.meta { font-size: 0.75rem; color: var(--ink-soft); font-variant-numeric: tabular-nums; display: flex; gap: 8px; align-items: center; }
.msg--brian .meta { justify-content: flex-end; }

.msg-body {
  background: var(--panel); border: 1px solid var(--hairline); border-radius: var(--radius);
  padding: 12px 14px; overflow-wrap: anywhere;
  box-shadow: 0 1px 2px rgba(16, 22, 47, 0.04), 0 8px 24px -16px rgba(16, 22, 47, 0.18);
}
.msg--marvel .msg-body { border-top-left-radius: 2px; }
.msg--brian .msg-body { border-top-right-radius: 2px; }
.msg--host .msg-body { background: transparent; border-color: transparent; box-shadow: none; padding: 0 2px; font-size: 1.02rem; }
.msg-text { white-space: pre-wrap; max-width: 68ch; }
.msg-text + .code, .code + .msg-text { margin-top: 10px; }
.msg-text code { font-family: var(--mono); font-size: 0.86em; background: var(--panel-2); padding: 1px 5px; border-radius: 4px; }
.msg-text strong { font-weight: 700; }
.msg-text a { color: var(--marvel-ink); text-underline-offset: 3px; }
.mention { font-weight: 700; border-radius: 4px; padding: 0 3px; }
.mention--marvel { color: var(--marvel-ink); background: color-mix(in srgb, var(--teal) 14%, transparent); }
.mention--brian { color: var(--brian-ink); background: color-mix(in srgb, var(--peri) 16%, transparent); }
.mention--host { color: var(--ink); background: var(--panel-2); }

.code { position: relative; background: var(--code-bg); color: var(--code-ink); border-radius: 10px; }
.code { overflow: hidden; }
.code-bar { display: flex; justify-content: flex-end; padding: 4px 4px 0; }
.code pre { margin: 0; padding: 4px 16px 14px; overflow-x: auto; font: 400 0.84rem/1.6 var(--mono); }
.code .copy {
  min-height: 44px; padding: 0 12px; border: 1px solid transparent; border-radius: 8px;
  background: transparent; color: #AEB9E6; font: 600 0.78rem var(--font); display: inline-flex; gap: 6px; align-items: center; cursor: pointer;
}
.code .copy:hover { background: #1D2A5C; color: #fff; }

.quote { font-size: 0.85rem; color: var(--ink-soft); display: flex; gap: 6px; align-items: center; min-width: 0; }
.quote span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msg--brian .quote { justify-content: flex-end; }

.reply-btn {
  justify-self: start; min-height: 44px; padding: 0 10px; margin: -6px 0; border: 1px solid transparent; border-radius: 8px;
  background: transparent; color: var(--ink-soft); font: 600 0.8rem var(--font); display: inline-flex; gap: 6px; align-items: center; cursor: pointer;
  transition: background 160ms, border-color 160ms, color 160ms;
}
.msg--brian .reply-btn { justify-self: end; }
.reply-btn:hover { background: var(--panel); border-color: var(--hairline); color: var(--ink); }

/* System line: the ticker */
.ticker { display: flex; gap: 10px; align-items: baseline; padding: 10px 12px; border-radius: 10px; background: color-mix(in srgb, var(--amber) 14%, var(--panel)); border: 1px solid color-mix(in srgb, var(--amber) 45%, transparent); font-size: 0.9rem; }
.ticker-label { flex: none; font-weight: 800; font-size: 0.8rem; color: #7A4B00; }
@media (prefers-color-scheme: dark) { .ticker-label { color: #FFD38A; } }

/* Live arrival: the strap wipes in, the body settles. */
.msg.is-live .strap { animation: strap-wipe 520ms var(--ease-out) both; }
.msg.is-live .msg-body, .msg.is-live .ticker { animation: settle 520ms 120ms var(--ease-out) both; }
@keyframes strap-wipe { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }
.msg--brian.is-live .strap { animation-name: strap-wipe-rtl; }
@keyframes strap-wipe-rtl { from { clip-path: inset(0 0 0 100%); } to { clip-path: inset(0 0 0 0); } }
@keyframes settle { from { opacity: 0; transform: translateY(6px); filter: blur(2px); } to { opacity: 1; transform: none; filter: none; } }
@keyframes tally-breathe { 50% { opacity: 0.45; } }
.podium[data-state="onair"] .tally { animation: tally-breathe 1.6s ease-in-out infinite; }

.empty { max-width: 460px; margin: 12vh auto 0; text-align: center; display: grid; gap: 8px; }
.empty-title { font-size: 2rem; font-weight: 800; color: var(--ink); }
.empty-text { color: var(--ink-soft); }

/* ---------- Side panel ---------- */
.side { width: 360px; flex: none; border-left: 1px solid var(--hairline); background: var(--panel); padding: 16px 18px 24px; overflow-y: auto; }
.side-head { display: flex; align-items: center; justify-content: space-between; }
#side-title, .side-subtitle { font-size: 1.1rem; font-weight: 800; }
.side-subtitle { display: flex; gap: 8px; align-items: center; margin-top: 26px; }
.side-hint { color: var(--ink-soft); font-size: 0.85rem; margin: 4px 0 12px; }
.side-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.side-list li { padding: 10px 12px; border-radius: 10px; background: var(--ground); border: 1px solid var(--hairline); font-size: 0.9rem; }
.side-list .who { display: block; margin-top: 4px; font-size: 0.78rem; color: var(--ink-soft); }
.side-list .none { background: transparent; border-style: dashed; color: var(--ink-soft); }

/* ---------- Composer ---------- */
.composer {
  flex: none; background: var(--panel); border-top: 1px solid var(--hairline);
  padding: 10px var(--gutter) max(12px, env(safe-area-inset-bottom));
  display: grid; gap: 8px; position: relative; z-index: 2;
}
.composer > * { width: 100%; max-width: 880px; margin: 0 auto; }
.replying { display: flex; gap: 8px; align-items: center; font-size: 0.85rem; color: var(--ink-soft); }
.replying span { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cues { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; }
.cue {
  flex: none; min-height: 44px; padding: 0 14px; border-radius: 999px; cursor: pointer;
  font-weight: 700; font-size: 0.85rem; border: 1px solid var(--hairline); background: var(--ground); color: var(--ink);
  transition: background 160ms, border-color 160ms, transform 160ms var(--ease-out);
}
.cue:active { transform: scale(0.97); }
.cue--marvel { color: var(--marvel-ink); }
.cue--marvel:hover, .cue--marvel[aria-pressed="true"] { border-color: var(--teal); background: color-mix(in srgb, var(--teal) 12%, var(--ground)); }
.cue--brian { color: var(--brian-ink); }
.cue--brian:hover, .cue--brian[aria-pressed="true"] { border-color: var(--peri); background: color-mix(in srgb, var(--peri) 14%, var(--ground)); }
.cue--both:hover, .cue--both[aria-pressed="true"] { border-color: var(--ink-soft); background: var(--panel-2); }
.compose-row { display: flex; gap: 8px; align-items: flex-end; }
.compose-row textarea {
  flex: 1; min-height: 48px; max-height: 40vh; resize: none; padding: 12px 14px; border-radius: 14px;
  border: 1px solid var(--hairline); background: var(--ground); color: var(--ink); font: 400 1rem/1.45 var(--font);
  transition: border-color 160ms, box-shadow 160ms;
}
.compose-row textarea::placeholder { color: var(--ink-soft); }
.compose-row textarea:focus-visible { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px color-mix(in srgb, var(--teal) 30%, transparent); }
.send {
  width: 48px; height: 48px; flex: none; border: 0; border-radius: 14px; background: var(--navy); color: #fff; cursor: pointer;
  display: grid; place-items: center; transition: background 160ms, transform 160ms var(--ease-out);
}
.send:hover { background: var(--blue); }
.send:active { transform: scale(0.96); }
.send[disabled] { opacity: 0.5; cursor: progress; }
.composer .form-error:empty { display: none; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .side {
    position: absolute; inset: 0 0 0 auto; width: min(380px, 92vw); z-index: 4;
    box-shadow: -12px 0 32px -16px rgba(0, 0, 0, 0.4);
  }
}
@media (max-width: 560px) {
  .icon-btn-label { display: none; }
  .stage { padding-top: max(4px, env(safe-area-inset-top)); }
  .wordmark { font-size: 1.15rem; }
  .podiums { margin-top: 6px; gap: 8px; }
  .podium { padding: 7px 10px; }
  .podium-name { font-size: 1rem; }
  .podium-role { display: none; }
  .podium-state { margin-top: 2px; font-size: 0.76rem; }
  .meter { margin-top: 8px; padding-bottom: 10px; }
  .meter-label { font-size: 0.72rem; }
  .cue { padding: 0 12px; font-size: 0.8rem; }
  .composer { gap: 6px; }
  .msg-body { padding: 11px 12px; }
  .msg--marvel, .msg--brian { max-width: 94%; }
}
@media (min-width: 981px) {
  .feed-wrap { padding-top: 28px; }
  .room { display: grid; grid-template-columns: minmax(0, 1fr) auto; grid-template-rows: auto minmax(0, 1fr) auto; }
  .stage { grid-column: 1 / -1; grid-row: 1; }
  .room-body { display: contents; }
  .feed-wrap { grid-column: 1; grid-row: 2; }
  .composer { grid-column: 1; grid-row: 3; }
  .side { grid-column: 2; grid-row: 2 / 4; }
  .room.side-open .stage { padding-right: calc(var(--gutter) + 360px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}