:root {
  color-scheme: light;
  --bg: #f6f1e8;
  --card: #fffdf9;
  --ink: #2c2420;
  --muted: #6e625a;
  --accent: #3f6f64;
  --line: #e4d9cc;
  --danger: #8c3a32;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 1.125rem;
  line-height: 1.45;
}

main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 28px 18px calc(36px + env(safe-area-inset-bottom));
}

h1 {
  margin: 0 0 8px;
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.lead, .hint, .links {
  color: var(--muted);
}

.lead { margin: 0 0 22px; }

.drop, .card, #transcript {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.drop {
  padding: 28px 18px 18px;
  text-align: center;
}

.drop.over {
  border-color: var(--accent);
  background: #f3faf7;
}

.hint { margin: 14px 0 0; font-size: 0.95rem; }

#file {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.button {
  display: inline-block;
  width: 100%;
  max-width: 20rem;
  margin: 0;
  padding: 16px 22px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  font: inherit;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.button:disabled {
  opacity: 0.6;
  cursor: default;
}

.card {
  margin-top: 16px;
  padding: 18px;
}

.filename {
  margin: 0 0 8px;
  font-weight: 600;
  overflow-wrap: anywhere;
}

#message, #waiting-text { margin: 0 0 14px; }

.card.error #message { color: var(--danger); }

.notice {
  margin: 16px 0 0;
  color: var(--danger);
}

.password {
  display: block;
  width: 100%;
  max-width: 20rem;
  margin: 0 auto 14px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: white;
  color: var(--ink);
  font: inherit;
  font-size: 1.05rem;
}

.bar {
  height: 12px;
  margin: 0 0 16px;
  border-radius: 999px;
  background: #efe6db;
  overflow: hidden;
}

.bar div {
  height: 100%;
  width: 0;
  background: var(--accent);
}

#start, #resume, #waiting-start, #waiting-resume { margin-top: 4px; }

.actions { margin: 18px 0 12px; text-align: center; }

.links { margin: 12px 0 0; font-size: 1rem; }

.links a {
  color: var(--accent);
  margin: 0 10px;
}

#transcript {
  white-space: pre-wrap;
  padding: 18px;
  overflow-wrap: anywhere;
}

#result[hidden], #card[hidden], #waiting[hidden], #notice[hidden], #bar-wrap[hidden],
#start[hidden], #resume[hidden], #waiting-start[hidden], #waiting-resume[hidden] {
  display: none;
}