:root {
  --bg: #0a0a0a;
  --fg: #d8d8d8;
  --muted: #6a6a6a;
  --panel: rgba(0, 0, 0, 0.55);
  --panel-border: rgba(255, 255, 255, 0.08);
  --accent: #ff3b3b;

  --c-agent:   #5eead4;
  --c-session: #f8fafc;
  --c-twitch:  #c084fc;
  --c-chat:    #a3e635;
  --c-trading: #fbbf24;
  --c-social:  #38bdf8;
  --c-other:   #d8d8d8;

  --sev-warn:    #f59e0b;
  --sev-error:   #ef4444;
  --sev-success: #22c55e;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "DejaVu Sans Mono", "SFMono-Regular", Menlo, monospace;
  font-size: 18px;
  line-height: 1.5;
  cursor: none;
}

.canvas {
  position: relative;
  width: 1280px;
  height: 720px;
  margin: 0 auto;
  background:
    radial-gradient(1200px 600px at 50% 110%, rgba(94, 234, 212, 0.05), transparent 60%),
    var(--bg);
  overflow: hidden;
}

/* Session panel — collapsed (ambient): 48 px thin bar, transparent so the
 * existing wordmark shows through. Active (session mode): expands to 33vh
 * with title + goal. The log top adjusts via the adjacent sibling selector
 * below so the two regions never overlap.
 */
.session-panel {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 48px;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 48px 10px;
  overflow: hidden;
  background: transparent;
  transition: height 320ms cubic-bezier(0.2, 0.8, 0.2, 1),
              background 320ms ease;
}

.session-panel.active {
  height: 33vh;
  background: var(--panel);
  border-bottom: 1px solid var(--panel-border);
  justify-content: flex-end;
  padding: 0 48px 24px;
}

.session-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: 0.04em;
  display: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-panel.active .session-title:not(:empty) {
  display: block;
}

.session-goal {
  font-size: 16px;
  color: var(--muted);
  max-width: 900px;
  display: none;
  line-height: 1.6;
}

.session-panel.active .session-goal:not(:empty) {
  display: block;
}

.session-meta {
  font-size: 13px;
  color: var(--muted);
  opacity: 0.55;
  display: none;
  letter-spacing: 0.03em;
}

.session-panel.active .session-meta:not(:empty) {
  display: block;
}

/* Log top adjusts when the session panel is in active/expanded mode. */
#session-panel.active ~ #log {
  top: calc(33vh + 16px);
}

.log {
  position: absolute;
  inset: 96px 24px 96px 24px;
  margin: 0;
  padding: 16px 20px;
  list-style: none;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  word-break: break-word;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, rgba(0,0,0,0.25) 6%, #000 18%, #000 100%);
          mask-image: linear-gradient(to bottom, transparent 0, rgba(0,0,0,0.25) 6%, #000 18%, #000 100%);
}

.evt {
  white-space: pre-wrap;
  word-wrap: break-word;
  color: var(--c-other);
  padding: 3px 8px;
  margin-left: -8px;
  border-left: 2px solid transparent;
  display: flex;
  align-items: baseline;
  gap: 10px;
  animation: evtIn 320ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.evt.level-warn    { border-left-color: var(--sev-warn); background: rgba(245, 158, 11, 0.07); }
.evt.level-error   { border-left-color: var(--sev-error); background: rgba(239, 68, 68, 0.10); }
.evt.level-success { border-left-color: var(--sev-success); background: rgba(34, 197, 94, 0.07); }
.evt.level-ok      { border-left-color: var(--sev-success); background: rgba(34, 197, 94, 0.07); }
.evt.level-warn  .msg { color: #fde68a; }
.evt.level-error .msg { color: #fecaca; }

.evt .ts {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

.evt .src {
  flex: 0 0 auto;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  padding: 2px 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid currentColor;
  color: var(--src-color, var(--c-other));
  line-height: 1.2;
}

.evt .msg {
  flex: 1 1 auto;
  color: var(--fg);
}

.evt.source-agent   { --src-color: var(--c-agent); }
.evt.source-session { --src-color: var(--c-session); }
.evt.source-twitch  { --src-color: var(--c-twitch); }
.evt.source-chat    { --src-color: var(--c-chat); }
.evt.source-trading { --src-color: var(--c-trading); }
.evt.source-social  { --src-color: var(--c-social); }

/* Focus-level hierarchy:
 *   [session] = full-focus workshop narration. Brighter, heavier, accented.
 *   [agent]   = ambient background narration. Dimmer, lighter weight.
 *   Other sources retain default styling.
 */
.evt.source-agent {
  opacity: 0.72;
}
.evt.source-agent .msg {
  color: #b8b8b8;
}
.evt.source-agent .src {
  font-weight: 600;
}

.evt.source-session {
  opacity: 1;
  border-left-color: var(--c-session);
  background: rgba(248, 250, 252, 0.04);
}
.evt.source-session .msg {
  color: #ffffff;
  font-weight: 500;
}
.evt.source-session .src {
  font-weight: 800;
  background: rgba(248, 250, 252, 0.12);
}

.live-badge {
  position: absolute;
  top: 28px;
  right: 32px;
  font-weight: 700;
  font-size: 30px;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-shadow: 0 0 12px rgba(255, 59, 59, 0.45);
  animation: livePulse 1s ease-in-out infinite;
}

.clock {
  position: absolute;
  bottom: 28px;
  right: 32px;
  font-size: 22px;
  background: rgba(0, 0, 0, 0.55);
  padding: 6px 14px;
  border-radius: 4px;
  letter-spacing: 0.03em;
  font-variant-numeric: tabular-nums;
}

@keyframes livePulse {
  0%, 100% { opacity: 0.45; }
  50%      { opacity: 1; }
}

@keyframes evtIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}

.evt.aging {
  animation: evtOut 320ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

@keyframes evtOut {
  from { opacity: 1; transform: none; }
  to   { opacity: 0; transform: translateY(-6px); }
}

.scanlines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.018) 0,
    rgba(255, 255, 255, 0.018) 1px,
    transparent 1px,
    transparent 3px
  );
  z-index: 1;
}

.wordmark {
  position: absolute;
  top: 28px;
  left: 32px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 28px;
  letter-spacing: 0.18em;
  color: var(--muted);
  user-select: none;
  z-index: 2;
}

.wordmark .wm-name {
  font-weight: 700;
  color: rgba(248, 250, 252, 0.85);
}

.wordmark .wm-tag {
  font-size: 16px;
  letter-spacing: 0.12em;
  color: var(--c-trading);
  opacity: 0.85;
}

.log, .live-badge, .clock { z-index: 2; }

/* Curtain overlay — shared skeleton for intro (dormant→running) and outro
 * (running→dormant). Stage pushes a single `intro` or `outro` event with
 * meta.durationMs; the client fades the curtain in immediately and out
 * when the duration elapses. While `.active` is set, event rendering in
 * the log panel is paused (see appendEvent's curtainActive() guard).
 *
 * The skeleton has four content slots — .curtain-mark (brand mark, kept
 * static), .curtain-tagline, .curtain-footer, and a hidden .curtain-audio.
 * .curtain-tagline / .curtain-footer can be overridden per-event via
 * meta.slots.{subtitle,footer} — see client.js applySlots(). Audio is a
 * design hook for later; no source wired yet.
 */
.curtain {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 0 64px;
  text-align: center;
  background:
    radial-gradient(900px 600px at 50% 45%, rgba(94, 234, 212, 0.18), transparent 70%),
    rgba(8, 10, 16, 0.92);
  z-index: 5;
  opacity: 0;
  pointer-events: none;
  transition: opacity 320ms ease;
}

.curtain.active {
  opacity: 1;
  animation: curtainPulse 1.4s ease-in-out infinite alternate;
}

.curtain-mark {
  display: flex;
  align-items: baseline;
  gap: 16px;
  font-size: 72px;
  letter-spacing: 0.22em;
}

.curtain-name {
  font-weight: 700;
  color: #f8fafc;
  text-shadow: 0 0 28px rgba(94, 234, 212, 0.6);
}

.curtain-tag {
  font-size: 36px;
  letter-spacing: 0.16em;
  color: var(--c-trading);
  opacity: 0.92;
}

.curtain-tagline {
  font-size: 22px;
  letter-spacing: 0.18em;
  color: var(--c-agent);
  max-width: 920px;
}

.curtain-footer {
  font-size: 18px;
  letter-spacing: 0.12em;
  color: var(--muted);
  max-width: 1040px;
}

.curtain-footer:empty {
  display: none;
}

@keyframes curtainPulse {
  from { transform: scale(1); }
  to   { transform: scale(1.015); }
}

/* Outro accent — same skeleton, slightly cooler tint so the running→dormant
 * transition reads distinct from the dormant→running intro at a glance.
 */
#outro {
  background:
    radial-gradient(900px 600px at 50% 45%, rgba(192, 132, 252, 0.16), transparent 70%),
    rgba(8, 10, 16, 0.94);
}

#outro .curtain-tag {
  color: var(--c-twitch);
}

/* The <audio> element that pulls /audio.opus has no visual representation.
 * It must never trap clicks / leave a focus ring. */
audio#audio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}