:root {
  --bg: #f6f5f1;
  --surface: #fffdfa;
  --surface-soft: #efeee9;
  --ink: #11110f;
  --ink-soft: #4d4c48;
  --ink-faint: #77756e;
  --line: #d9d6cc;
  --line-strong: #11110f;
  --black: #050505;
  --white: #ffffff;
  --radius: 0px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }
html { height: 100%; }
body {
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
button, input { font: inherit; }
button { touch-action: manipulation; }
[hidden] { display: none !important; }

.gate {
  position: fixed;
  inset: 0;
  z-index: 50;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(246, 245, 241, .96);
}
.gate-card {
  width: min(440px, 100%);
  border: 1px solid var(--line-strong);
  background: var(--surface);
  padding: clamp(18px, 4vw, 28px);
  display: grid;
  gap: 14px;
}
.gate-card h2 {
  margin: 0;
  font-size: clamp(34px, 7vw, 54px);
  line-height: .92;
  letter-spacing: -.06em;
  font-weight: 900;
}
.gate-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.5;
  font-weight: 650;
}

.shell {
  width: min(1680px, 100%);
  min-height: 100dvh;
  margin: 0 auto;
  padding: clamp(14px, 2vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.brand { min-width: 0; }
.eyebrow, .micro {
  display: block;
  margin: 0;
  color: var(--ink-faint);
  font-size: 10px;
  line-height: 1.1;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}
h1 {
  margin: 8px 0 0;
  font-size: clamp(34px, 5.6vw, 80px);
  line-height: .88;
  letter-spacing: -.07em;
  font-weight: 900;
}

.room-card {
  min-width: 700px;
  border: 1px solid var(--line);
  background: var(--surface);
  display: grid;
  grid-template-columns: 10px minmax(120px, 170px) minmax(360px, 1fr) auto;
  align-items: end;
  gap: 12px;
  padding: 12px;
}
.room-summary { min-width: 0; align-self: center; }
.header-room-form {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(120px, 1fr) minmax(100px, .8fr) auto;
  align-items: end;
  gap: 8px;
}
.header-room-form label { min-width: 0; }
.header-room-form input { height: 38px; }
.queue-mode-label { color: var(--ink); margin-left: 5px; letter-spacing: .08em; }
.dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #999;
  border: 1px solid var(--line-strong);
  align-self: center;
}
.dot.ok { background: #111; }
.dot.bad { background: #fff; }
#roomLabel {
  display: block;
  margin-top: 4px;
  font-size: 14px;
  letter-spacing: .08em;
  font-weight: 900;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#activeName {
  display: block;
  margin-top: 4px;
  color: var(--ink-faint);
  font-size: 11px;
  font-weight: 800;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.layout {
  flex: none;
  min-height: 0;
  height: calc(100dvh - clamp(160px, 16vw, 200px));
  display: grid;
  grid-template-columns: minmax(260px, 300px) minmax(0, 1fr) minmax(420px, 500px);
  grid-template-areas: "queue chat rail";
  gap: 18px;
  align-items: stretch;
}

.chat-card, .panel, .player-card {
  border: 1px solid var(--line);
  background: var(--surface);
}
.chat-card {
  min-width: 0;
  min-height: 0;
  height: calc(100dvh - clamp(160px, 16vw, 200px));
  display: flex;
  flex-direction: column;
  padding: 16px;
  grid-area: chat;
}
.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.compact-head { padding-bottom: 12px; }
.section-status {
  margin: 5px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.25;
  font-weight: 600;
}
.pill {
  flex: none;
  border: 1px solid var(--line-strong);
  padding: 7px 9px;
  background: var(--black);
  color: var(--white);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
  white-space: nowrap;
}
.pill.muted { background: var(--surface); color: var(--ink-soft); border-color: var(--line); }
.chat-head-actions { display: flex; align-items: center; gap: 10px; }
.mobile-view-tabs { display: none; gap: 4px; border: 1px solid var(--line); padding: 3px; }
.mobile-view-tabs button {
  border: 0;
  background: transparent;
  color: var(--ink-faint);
  padding: 5px 7px;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.mobile-view-tabs button.active { background: var(--black); color: var(--white); }

.chat-log {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 2px 16px 0;
  scrollbar-gutter: stable;
}
.empty-chat {
  margin: auto;
  max-width: 420px;
  text-align: center;
  color: var(--ink-faint);
  border: 1px solid var(--line);
  padding: 22px;
  background: var(--surface-soft);
}
.empty-chat p { margin: 8px 0 0; color: var(--ink-soft); font-weight: 650; line-height: 1.35; }
.chat-log.has-messages .empty-chat { display: none; }
.chat-line {
  width: fit-content;
  max-width: min(74ch, 82%);
  border: 1px solid var(--line);
  background: var(--white);
  padding: 12px 13px;
  font-size: 15px;
  line-height: 1.48;
  align-self: flex-end;
  word-break: break-word;
}
.chat-line.assistant {
  align-self: flex-start;
  background: var(--surface-soft);
  border-color: var(--line-strong);
}
.chat-line b {
  display: block;
  margin: 0 0 6px;
  color: var(--ink-faint);
  font-size: 10px;
  line-height: 1;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.quick-prompts {
  flex: none;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 0 12px;
  border-top: 1px solid var(--line);
  scrollbar-width: none;
}
.quick-prompts::-webkit-scrollbar { display: none; }
.quick-prompts button {
  flex: none;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-soft);
  padding: 9px 10px;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.composer {
  flex: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  padding-top: 12px;
}
input {
  width: 100%;
  min-width: 0;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
  padding: 0 12px;
  outline: none;
}
input:focus { border-color: var(--line-strong); }
.composer input { height: 54px; font-size: 16px; }
.button {
  min-height: 44px;
  border: 1px solid var(--black);
  border-radius: var(--radius);
  background: var(--black);
  color: var(--white);
  padding: 0 14px;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
  cursor: pointer;
}
.button.secondary { background: var(--surface); color: var(--ink); border-color: var(--line); }
.button.full { width: 100%; }
.button:active { transform: translateY(1px); }
.button:disabled, .quick-prompts button:disabled {
  opacity: .42;
  cursor: not-allowed;
  transform: none;
}
.mode-card { display: grid; gap: 10px;  }
.mode-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.subtle { color: var(--ink-faint); font-size: 11px; }

.side-rail {
  min-height: 0;
  display: grid;
  grid-template-rows: auto auto;
  gap: 14px;
  grid-area: rail;
}
.player-card { flex: none; padding: 14px; }
.player {
  position: relative;
  height: clamp(200px, 24vw, 260px);
  margin-top: 12px;
  border: 1px solid var(--line-strong);
  background: #050505;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.player iframe { width: 100%; height: 100%; border: 0; display: block; }
.player-empty {
  max-width: 260px;
  color: #f5f5ef;
  text-align: center;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  line-height: 1.4;
  text-transform: uppercase;
}
.transport {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 10px;
}
.panel { padding: 14px; }
.stack { display: grid; gap: 12px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
label {
  display: grid;
  gap: 7px;
  color: var(--ink-faint);
  font-size: 10px;
  line-height: 1;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.queue-card {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.queue-list {
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding-top: 12px;
  scrollbar-gutter: stable;
}
.standalone-queue { grid-area: queue; }
.queue-meta {
  color: var(--ink-faint);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.queue-item {
  display: grid;
  gap: 9px;
  margin-bottom: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--white);
}
.queue-item.active { border-color: var(--line-strong); background: var(--surface-soft); }
.queue-title {
  color: var(--ink);
  font-size: 14px;
  font-weight: 850;
  line-height: 1.22;
}
.queue-actions { display: flex; gap: 8px; }
.queue-actions .button { min-height: 34px; padding: 0 10px; }

@media (max-width: 1040px) {
  .layout { height: auto; grid-template-columns: 1fr; grid-template-areas: "chat" "queue" "rail"; }
  .chat-card { height: min(680px, 62dvh); min-height: 480px; }
  .side-rail { display: grid; grid-template-columns: 1fr 1fr; align-items: start; }
  .player-card, .side-rail { grid-column: 1 / -1; }
  .standalone-queue { max-height: 360px; }
}

@media (max-width: 680px) {
  .shell { padding: 12px; gap: 12px; }
  .topbar { grid-template-columns: 1fr; align-items: stretch; gap: 10px; padding-bottom: 12px; }
  h1 { font-size: clamp(36px, 12vw, 48px); letter-spacing: -.065em; }
  .room-card { min-width: 0; grid-template-columns: 10px minmax(0, 1fr); padding: 10px; gap: 10px; }
  .header-room-form { grid-column: 1 / -1; grid-template-columns: 1fr 1fr auto; }
  .room-card .button { min-height: 40px; }
  .room-card > #copyBtn { grid-column: 1 / -1; width: 100%; }
  .layout { gap: 12px; }
  .chat-card { height: calc(100dvh - 250px); min-height: 360px; padding: 12px; }
  .section-head { padding-bottom: 11px; }
  .chat-head-actions { gap: 6px; }
  .mobile-view-tabs { display: flex; }
  .layout:not(.mobile-queue) .standalone-queue { display: none; }
  .layout.mobile-queue .chat-card { display: none; }
  .layout.mobile-queue .standalone-queue {
    display: flex;
    grid-area: chat;
    height: calc(100dvh - 250px);
    min-height: 360px;
    max-height: none;
  }
  .chat-log { padding: 12px 0; gap: 8px; }
  .empty-chat { padding: 16px; }
  .chat-line { max-width: 92%; font-size: 14px; padding: 11px 12px; }
  .composer { grid-template-columns: 1fr; gap: 8px; padding-bottom: var(--safe-bottom); }
  .composer input { height: 48px; }
  .quick-prompts { padding-bottom: 10px; }
  .side-rail { display: flex; gap: 12px; }
  .player-card, .panel { padding: 12px; }
  .player { height: 210px; }
  .transport { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .queue-card { max-height: 380px; }
}

@media (max-width: 390px) {
  .chat-card { height: calc(100dvh - 238px); min-height: 350px; }
  .player { height: 190px; }
}