:root {
  color-scheme: light;
  --bg: #eef2f6;
  --ink: #101820;
  --muted: #5f6f7a;
  --line: #cfdae5;
  --panel: #ffffff;
  --panel-2: #f6f8fb;
  --green: #0f8f61;
  --green-dark: #08734d;
  --blue: #1f6feb;
  --coral: #d9563f;
  --amber: #b7791f;
  --shadow: 0 18px 48px rgba(16, 24, 32, 0.12);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(238, 242, 246, 0.94), rgba(226, 234, 241, 0.98)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cg fill='none' stroke='%23c4d1dc' stroke-opacity='.45'%3E%3Cpath d='M0 40h160M0 80h160M0 120h160M40 0v160M80 0v160M120 0v160'/%3E%3C/g%3E%3C/svg%3E");
  color: var(--ink);
}

button {
  min-width: 112px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 140ms ease,
    border-color 140ms ease,
    background 140ms ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: #9fb1c0;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

button.primary {
  border-color: var(--green);
  background: var(--green);
  color: #fff;
}

.shell {
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 32px 0;
}

.workspace {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-2);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.05;
  letter-spacing: 0;
}

.status-pill {
  min-width: 116px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  background: #fff;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  text-align: center;
}

.status-pill.live {
  border-color: rgba(15, 143, 97, 0.32);
  background: rgba(15, 143, 97, 0.11);
  color: var(--green-dark);
}

.status-pill.busy {
  border-color: rgba(31, 111, 235, 0.3);
  background: rgba(31, 111, 235, 0.1);
  color: var(--blue);
}

.status-pill.error {
  border-color: rgba(217, 86, 63, 0.35);
  background: rgba(217, 86, 63, 0.12);
  color: var(--coral);
}

.stage {
  padding: 22px 24px 18px;
  border-bottom: 1px solid var(--line);
}

#waveform {
  display: block;
  width: 100%;
  height: clamp(160px, 25vw, 240px);
  border: 1px solid #c8d6df;
  border-radius: 8px;
  background: #101820;
}

.meter-row {
  display: grid;
  grid-template-columns: 42px minmax(120px, 1fr) 72px;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}

.meter-label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.level-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #dbe5ed;
}

.level-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--green), var(--amber), var(--coral));
  transition: width 80ms linear;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
}

.transcript {
  min-height: 260px;
  max-height: 44vh;
  overflow-y: auto;
  padding: 20px 24px 24px;
  background: #fbfcfd;
}

.messages {
  display: grid;
  gap: 12px;
}

.line {
  max-width: 82%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  background: #fff;
  line-height: 1.45;
  white-space: pre-wrap;
}

.line.system {
  max-width: none;
  margin-bottom: 14px;
  border-color: #d8dde3;
  background: #eef4f8;
  color: var(--muted);
}

.line.user {
  justify-self: start;
  border-color: rgba(15, 143, 97, 0.26);
  background: rgba(15, 143, 97, 0.08);
}

.line.assistant {
  justify-self: end;
  border-color: rgba(31, 111, 235, 0.24);
  background: rgba(31, 111, 235, 0.08);
}

@media (max-width: 680px) {
  .shell {
    width: 100%;
    padding: 0;
  }

  .workspace {
    min-height: 100vh;
    border-width: 0;
    border-radius: 0;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .status-pill {
    width: 100%;
  }

  .controls button {
    flex: 1 1 0;
    min-width: 0;
  }

  .line {
    max-width: 94%;
  }
}