/* Tangent panel. System fonts on purpose: the panel sits inside the Zoom client
   and should feel native, and it avoids allow-listing a font host. */
:root {
  --paper: #f3f5f8;
  --ink: #17202e;
  --muted: #5b6676;
  --line: #2f6f8f;
  --signal: #e8a317;
  --signal-ink: #3a2800;
  --rule: #d5dbe3;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141a23;
    --ink: #e7ecf2;
    --muted: #98a3b3;
    --line: #6fa9c6;
    --signal: #f0b43c;
    --signal-ink: #2a1d00;
    --rule: #2a3442;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--paper);
  color: var(--ink);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.panel {
  min-height: 100%;
  max-width: 420px;
  margin: 0 auto;
  padding: 20px 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: background-color 300ms ease;
}

.demo {
  margin: 0;
  padding: 8px 10px;
  border: 1px dashed var(--rule);
  border-radius: 8px;
  color: var(--muted);
  font-size: 13px;
}

/* The one memorable thing: a topic (circle) and its tangent line, which tilts
   away as flags come in and swings out in amber when the alert fires. */
.motif { width: 100%; max-width: 280px; align-self: center; overflow: visible; }
.motif .topic { fill: none; stroke: var(--ink); stroke-width: 2.5; opacity: 0.85; }
.motif .touch { fill: var(--ink); }
.motif .tangent line { stroke: var(--line); stroke-width: 3; stroke-linecap: round; }
.motif .tangent {
  transform-origin: 120px 46px;
  transform: rotate(var(--tilt, 0deg));
  transition: transform 500ms cubic-bezier(.3, 1.4, .5, 1);
}

.status h1 { margin: 0 0 4px; font-size: 24px; line-height: 1.2; font-weight: 650; letter-spacing: -0.01em; }
.status p { margin: 0; color: var(--muted); max-width: 36ch; }

.flag {
  appearance: none;
  border: 2px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font: inherit;
  font-size: 17px;
  font-weight: 600;
  padding: 14px 18px;
  border-radius: 999px;
  cursor: pointer;
}
.flag:hover:not(:disabled) { filter: brightness(1.15); }
.flag:disabled { opacity: 0.45; cursor: default; }
.flag[aria-pressed="true"] { background: transparent; color: var(--ink); }

.invite {
  appearance: none;
  background: none;
  border: 1px solid var(--rule);
  color: var(--ink);
  font: inherit;
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
}

.sound {
  appearance: none;
  align-self: center;
  background: none;
  border: none;
  color: var(--muted);
  font: inherit;
  font-size: 14px;
  padding: 4px 8px;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}
.sound[aria-pressed="false"] { text-decoration-style: dotted; }
.panel[data-state="alert"] .sound { color: var(--signal-ink); }

button:focus-visible { outline: 3px solid var(--line); outline-offset: 3px; }

.fine { margin: auto 0 0; font-size: 13px; color: var(--muted); }
.conn { margin: 0; font-size: 12px; color: var(--muted); min-height: 1em; }

/* Alert state */
.panel[data-state="alert"] { background: var(--signal); color: var(--signal-ink); }
.panel[data-state="alert"] .status p,
.panel[data-state="alert"] .fine,
.panel[data-state="alert"] .conn { color: var(--signal-ink); }
.panel[data-state="alert"] .motif .topic { stroke: var(--signal-ink); }
.panel[data-state="alert"] .motif .touch { fill: var(--signal-ink); }
.panel[data-state="alert"] .motif .tangent line { stroke: var(--signal-ink); stroke-width: 4; }
.panel[data-state="alert"] .flag { border-color: var(--signal-ink); background: transparent; color: var(--signal-ink); }
.panel[data-state="alert"] .invite { border-color: var(--signal-ink); color: var(--signal-ink); }

@media (prefers-reduced-motion: reduce) {
  .motif .tangent, .panel { transition: none; }
}

/* ---------- Camera overlay ----------
   This page is drawn on top of the host's video at the video's own resolution,
   so sizes use vw to scale with whatever resolution Zoom renders. */
body.camera, body.camera .overlay { background: transparent; }
body.camera-preview { background: #3b4552; } /* stands in for a video feed */

.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0 4vw 5vw;
  pointer-events: none;
}
.banner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6vw;
  padding: 2.4vw 5vw;
  border-radius: 2vw;
  background: #e8a317;
  color: #2a1d00;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  text-align: center;
  box-shadow: 0 0 0 0.5vw #2a1d00;
  transform: translateY(140%);
  opacity: 0;
  transition: transform 450ms cubic-bezier(.3, 1.4, .5, 1), opacity 200ms ease;
}
.banner strong { font-size: 7vw; line-height: 1; font-weight: 800; letter-spacing: -0.02em; }
.banner span { font-size: 2.6vw; font-weight: 600; }
.overlay.show .banner { transform: translateY(0); opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  .banner { transition: none; }
}