:root {
  --paper: #f4edde;
  --ink: #16231f;
  --muted: #65726c;
  --accent: #df5b37;
  --green: #176c5a;
  --line: rgba(22, 35, 31, .16);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at 90% 10%, rgba(223,91,55,.13), transparent 30rem), var(--paper); }
button, input, select { font: inherit; }
button, a { cursor: pointer; }
.hero, main { width: min(1180px, calc(100% - 2rem)); margin-inline: auto; }
.hero { min-height: 38rem; display: grid; grid-template-columns: minmax(0, 2fr) minmax(16rem, 1fr); align-items: center; gap: clamp(2rem, 8vw, 8rem); padding-block: 5rem; }
h1 { font-family: Georgia, serif; font-size: clamp(3rem, 8vw, 7.3rem); letter-spacing: -.055em; line-height: .88; max-width: 13ch; margin: .2rem 0 1.5rem; }
h2 { font-family: Georgia, serif; font-size: clamp(1.5rem, 3vw, 2.2rem); margin: .2rem 0 1rem; }
p { line-height: 1.6; }
.lead { font-size: clamp(1.05rem, 2vw, 1.35rem); max-width: 50rem; color: var(--muted); }
.eyebrow, .step { text-transform: uppercase; letter-spacing: .14em; color: var(--accent); font-size: .7rem; font-weight: 900; margin: 0; }
.primary { border: 0; border-radius: 999px; padding: 1rem 1.4rem; color: white; background: var(--ink); font-weight: 800; box-shadow: .4rem .4rem 0 var(--accent); }
.connection-card { border-left: 1px solid var(--line); padding: 2rem; display: grid; grid-template-columns: auto 1fr; align-items: center; gap: .7rem; }
.connection-card small { grid-column: 2; color: var(--muted); }
#status-dot { width: .8rem; aspect-ratio: 1; border-radius: 50%; background: #9ca3af; box-shadow: 0 0 0 .35rem rgba(156,163,175,.18); }
#status-dot.online { background: #16a34a; box-shadow: 0 0 0 .35rem rgba(22,163,74,.18); }
#status-dot.waiting { background: #eab308; box-shadow: 0 0 0 .35rem rgba(234,179,8,.18); }
.panel { border: 1px solid var(--line); border-radius: 1.1rem; padding: clamp(1rem, 3vw, 2rem); background: rgba(255,255,255,.42); box-shadow: 0 1rem 3rem rgba(64,52,38,.06); }
.join-panel { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; margin-bottom: 1rem; }
.join-panel[hidden] { display: none; }
.join-panel img { width: min(45vw, 17rem); border-radius: .8rem; }
.join-panel a { color: var(--green); font-weight: 800; overflow-wrap: anywhere; }
.workbench { display: grid; grid-template-columns: 19rem minmax(0, 1fr); gap: 1rem; align-items: start; }
.workbench[hidden] { display: none; }
.controls { position: sticky; top: 1rem; display: grid; gap: .7rem; }
.controls label { color: var(--muted); font-size: .75rem; display: grid; gap: .25rem; }
.controls input, .controls select, .controls button, #clear-log {
  border: 1px solid var(--line); border-radius: .6rem; padding: .7rem; background: rgba(255,255,255,.65); color: var(--ink);
}
.controls button { text-align: left; font-weight: 750; }
.controls button:hover { border-color: var(--accent); }
.controls .secondary { margin-top: .5rem; background: var(--ink); color: white; }
.readout { min-width: 0; display: grid; gap: 1rem; }
.metrics { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1rem; }
.metric { min-width: 0; display: grid; gap: .6rem; padding: 1rem; }
.metric span { color: var(--muted); font-size: .72rem; }
.metric strong { overflow: hidden; text-overflow: ellipsis; font-variant-numeric: tabular-nums; }
.metric meter { width: 100%; accent-color: var(--accent); }
.media { display: grid; grid-template-columns: minmax(12rem, 1fr) minmax(12rem, 2fr); align-items: center; gap: 1rem; }
#media-preview { max-width: 100%; max-height: 28rem; justify-self: end; border-radius: .6rem; }
#media-info { color: var(--muted); overflow-wrap: anywhere; }
.event-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
#event-log { list-style: none; padding: 0; margin: 1rem 0 0; max-height: 28rem; overflow: auto; font: .75rem/1.45 ui-monospace, SFMono-Regular, Menlo, monospace; }
#event-log li { display: grid; grid-template-columns: 5rem 11rem minmax(0,1fr); gap: .5rem; padding: .5rem 0; border-top: 1px solid var(--line); }
#event-log time { color: var(--muted); }
#event-log code { overflow-wrap: anywhere; white-space: pre-wrap; }
.explanation { margin: 5rem 0; }
.code-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1rem; }
.code-grid > div { display: grid; grid-template-columns: auto 1fr; gap: .8rem; color: var(--muted); }
.code-grid b { display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; background: var(--accent); color: white; }

@media (max-width: 800px) {
  .hero { min-height: auto; grid-template-columns: 1fr; padding-block: 3rem; gap: 2rem; }
  .connection-card { border-left: 0; border-top: 1px solid var(--line); }
  .workbench { grid-template-columns: 1fr; }
  .controls { position: static; grid-template-columns: repeat(2,minmax(0,1fr)); }
  .controls h2, .controls .step, .controls label { grid-column: 1/-1; }
  .metrics { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 520px) {
  .join-panel, .media, .code-grid { grid-template-columns: 1fr; }
  .join-panel img { width: 100%; }
  .metrics { grid-template-columns: 1fr; }
  #event-log li { grid-template-columns: 4rem minmax(0,1fr); }
  #event-log code { grid-column: 1/-1; }
}