:root {
  color-scheme: dark;
  --bg: #0d1117;
  --panel: #151b23;
  --panel-strong: #1c242e;
  --line: #303946;
  --text: #f2f5f7;
  --muted: #9aa7b4;
  --accent: #21c487;
  --accent-strong: #5ee6ad;
  --warning: #f4ba54;
  --danger: #ff6b6b;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.35);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 0%, rgba(33, 196, 135, 0.12), transparent 32rem),
    linear-gradient(180deg, #101720 0%, var(--bg) 36rem);
}

button,
input,
textarea {
  font: inherit;
}

button {
  touch-action: manipulation;
}

code {
  color: var(--accent-strong);
  font-size: 0.84rem;
  word-break: break-all;
}

.app-shell {
  width: min(960px, 100%);
  min-height: 100dvh;
  margin: 0 auto;
  padding: max(18px, env(safe-area-inset-top)) 16px max(22px, env(safe-area-inset-bottom));
}

.hero-panel {
  display: grid;
  gap: 18px;
  padding: 18px 0 14px;
}

.title-block {
  display: grid;
  gap: 8px;
}

.eyebrow {
  margin: 0;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2.35rem, 11vw, 4.7rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  font-size: 1rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.subtitle {
  max-width: 34rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.55;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.status-card,
.tool-panel,
.live-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(21, 27, 35, 0.86);
  box-shadow: var(--shadow);
}

.status-card {
  min-width: 0;
  padding: 12px;
}

.status-label {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.2;
}

.status-card strong {
  display: block;
  margin-top: 4px;
  overflow: hidden;
  font-size: 0.94rem;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.caption-stage {
  display: grid;
  gap: 12px;
  margin-top: 10px;
}

.live-card {
  display: grid;
  gap: 18px;
  padding: 18px;
}

.meter-row {
  display: grid;
  grid-template-columns: auto minmax(96px, 1fr);
  gap: 12px;
  align-items: center;
  color: var(--muted);
  font-size: 0.82rem;
}

.meter {
  height: 10px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: #0b0f15;
}

.meter div {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--warning));
  transition: width 90ms linear;
}

.live-caption {
  min-height: 8rem;
  display: flex;
  align-items: center;
  color: var(--text);
  font-size: clamp(1.75rem, 9vw, 4.1rem);
  font-weight: 780;
  line-height: 1.13;
  letter-spacing: 0;
}

.live-hint {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.caption-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.caption-item {
  display: grid;
  gap: 6px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.caption-item time {
  color: var(--muted);
  font-size: 0.76rem;
}

.caption-main {
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.35;
}

.caption-source {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.control-bar {
  position: sticky;
  bottom: 0;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin: 14px -16px 0;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(13, 17, 23, 0.86);
  backdrop-filter: blur(18px);
}

.primary-button,
.ghost-button,
.icon-button {
  min-height: 46px;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: #06120d;
  background: var(--accent);
  font-weight: 800;
}

.button-icon {
  font-size: 0.8rem;
}

.primary-button.is-recording .button-icon {
  color: var(--danger);
  animation: pulse 1s infinite;
}

.ghost-button,
.icon-button {
  color: var(--text);
  border: 1px solid var(--line);
  background: var(--panel-strong);
}

.ghost-button {
  padding: 0 18px;
}

.ghost-button:disabled,
.primary-button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.tool-grid {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.tool-panel {
  display: grid;
  gap: 14px;
  padding: 14px;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.icon-button {
  width: 42px;
  min-width: 42px;
  font-weight: 800;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(33, 196, 135, 0.38);
  border-radius: 999px;
  color: var(--accent-strong);
  background: rgba(33, 196, 135, 0.1);
  font-size: 0.76rem;
  font-weight: 700;
}

textarea {
  width: 100%;
  resize: vertical;
  min-height: 7rem;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: #0b0f15;
  line-height: 1.55;
  outline: none;
}

textarea:focus,
select:focus,
input[type="range"]:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 2px;
}

.probe-output {
  display: block;
  min-height: 3.4rem;
  padding: 12px;
  border-radius: 8px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.055);
  line-height: 1.5;
}

.range-row {
  display: grid;
  grid-template-columns: 5.2rem minmax(90px, 1fr) 4.8rem;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 0.88rem;
}

.select-row {
  display: grid;
  grid-template-columns: 5.2rem minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 0.88rem;
}

select {
  width: 100%;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: #0b0f15;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.range-row strong {
  color: var(--text);
  font-size: 0.85rem;
  text-align: right;
}

.engine-note {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.diagnostics {
  display: grid;
  grid-template-columns: minmax(8rem, auto) 1fr;
  gap: 9px 12px;
  margin: 0;
  font-size: 0.87rem;
}

.diagnostics dt {
  color: var(--muted);
}

.diagnostics dd {
  margin: 0;
  text-align: right;
}

.ok {
  color: var(--accent-strong);
}

.warn {
  color: var(--warning);
}

.bad {
  color: var(--danger);
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.35;
  }
  50% {
    opacity: 1;
  }
}

@media (min-width: 760px) {
  .app-shell {
    padding-inline: 24px;
  }

  .hero-panel {
    grid-template-columns: minmax(0, 1fr) 24rem;
    align-items: end;
    padding-top: 34px;
  }

  .tool-grid {
    grid-template-columns: 1.05fr 1fr 0.95fr;
    align-items: start;
  }

  .control-bar {
    margin-inline: -24px;
    padding-inline: 24px;
  }
}

@media (max-width: 420px) {
  .status-grid {
    grid-template-columns: 1fr;
  }

  .range-row {
    grid-template-columns: 1fr 4.8rem;
  }

  .select-row {
    grid-template-columns: 1fr;
  }

  .range-row input {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}