:root {
  color-scheme: dark;
  --fg: #e8e8e8;
  --dim: #8a8a8a;
  --accent: #4fb477;
  --live: #d9534f;
}

* {
  box-sizing: border-box;
}

/* One screen high: only the transcript scrolls, so Talk/Hang up (and an
   approval) always stay in view. 100% of the containing block, not vh/dvh:
   in Chrome on Android those resolve taller than the visible area, and
   the document then scrolls to hide the browser bars. */
html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  background: #111;
  color: var(--fg);
  font:
    16px/1.4 system-ui,
    sans-serif;
}

main {
  max-width: 40rem;
  height: 100%;
  margin: 0 auto;
  padding: max(1rem, env(safe-area-inset-top)) 1rem
    max(1rem, env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
}

main > :not(.log) {
  flex: none;
}

header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
}

h1 {
  font-size: 1.2rem;
  margin: 0 0 1rem;
}

#voice-select {
  /* Labels carry the language and accent: a full-width row under the title. */
  order: 3;
  flex-basis: 100%;
  margin-bottom: 0.5rem;
  background: #222;
  color: var(--fg);
  border: 1px solid #444;
  border-radius: 0.3rem;
  font: inherit;
  padding: 0.2rem;
}

.link {
  background: none;
  border: none;
  color: var(--dim);
  font: inherit;
  text-decoration: underline;
  cursor: pointer;
}

.talk {
  display: block;
  width: 9rem;
  height: 9rem;
  margin: 1rem auto;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font:
    600 1.3rem system-ui,
    sans-serif;
  cursor: pointer;
}

.talk.live {
  background: var(--live);
}
.talk.speaking {
  box-shadow: 0 0 0 0.6rem rgba(217, 83, 79, 0.35);
}
.talk:disabled {
  opacity: 0.5;
}

.status,
.cost {
  text-align: center;
  margin: 0.3rem 0;
}
.cost {
  color: var(--dim);
  font-size: 0.9rem;
}

.log {
  flex: 1 1 0;
  min-height: 0;
  overflow-y: auto;
  /* A swipe past either end does not move the page. */
  overscroll-behavior: contain;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

.log li {
  margin: 0.4rem 0;
  white-space: pre-wrap;
}

.log .user::before {
  content: "you: ";
  color: var(--accent);
}
.log .assistant::before {
  content: "voice: ";
  color: var(--dim);
}
.log .hermes {
  color: var(--dim);
  font-size: 0.9rem;
  border-left: 2px solid var(--accent);
  padding-left: 0.5rem;
}
.log .hermes::before {
  content: "hermes: ";
}
.log .error {
  color: var(--live);
}

.approval {
  margin: 1rem 0;
  padding: 0.8rem;
  border: 2px solid #e0a030;
  border-radius: 0.5rem;
  text-align: center;
}

.approval p {
  /* A long command scrolls here instead of pushing the buttons away. */
  max-height: 30vh;
  overflow-y: auto;
  margin: 0 0 0.6rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.approval button {
  margin: 0 0.3rem;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 0.3rem;
  font: inherit;
  color: #fff;
  cursor: pointer;
}

#approve {
  background: var(--accent);
}
#deny {
  background: var(--live);
}