:root {
  --bg-0: #0b0f14;
  --bg-1: #121820;
  --bg-2: #1a2330;
  --line: rgba(255, 255, 255, 0.08);
  --text: #f4f1ea;
  --muted: #9aa7b8;
  --accent: #3ecf8e;
  --accent-dim: rgba(62, 207, 142, 0.18);
  --warn: #f0b429;
  --danger: #ff6b6b;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius: 18px;
  --font-ui: "Manrope", system-ui, sans-serif;
  --font-display: "Source Serif 4", Georgia, serif;
  --scale: 1;
  --translated-size: calc(2.6rem * var(--scale));
  --original-size: calc(1.15rem * var(--scale));
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 700px at 12% -10%, rgba(62, 207, 142, 0.12), transparent 55%),
    radial-gradient(900px 600px at 100% 0%, rgba(80, 140, 255, 0.1), transparent 50%),
    linear-gradient(180deg, #0d131b 0%, var(--bg-0) 40%, #070a0e 100%);
  color: var(--text);
  font-family: var(--font-ui);
}

body {
  min-height: 100vh;
  min-height: 100dvh;
}

button,
select,
input {
  font: inherit;
  color: inherit;
}

.app {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: clamp(0.75rem, 2vw, 1.5rem);
  gap: 0.75rem;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  background: color-mix(in srgb, var(--bg-1) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-mark {
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px var(--accent-dim);
}

.brand-name {
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 1.15rem;
}

.brand-sub {
  margin: 0.1rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 0.65rem;
}

.field {
  display: grid;
  gap: 0.3rem;
  min-width: 10rem;
}

.field span {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
}

.field select,
.field input[type="range"] {
  height: 2.6rem;
  padding: 0 0.85rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg-2);
  outline: none;
}

.field select:focus,
.btn:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 55%, white);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.field-size {
  min-width: 8.5rem;
}

.field input[type="range"] {
  padding: 0 0.35rem;
  accent-color: var(--accent);
}

.btn {
  height: 2.6rem;
  padding: 0 1.05rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg-2);
  cursor: pointer;
  font-weight: 700;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-ghost {
  background: transparent;
}

.btn-primary {
  min-width: 7.5rem;
  border-color: transparent;
  background: linear-gradient(180deg, #4ae09c, #2fbf7a);
  color: #062116;
}

.btn-primary[data-active="true"] {
  background: linear-gradient(180deg, #ff8a8a, #e45757);
  color: #2a0707;
}

.stage {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 0.85rem;
  min-height: 0;
  padding: clamp(1rem, 2.5vw, 1.75rem);
  border-radius: calc(var(--radius) + 4px);
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(18, 24, 32, 0.92), rgba(11, 15, 20, 0.96));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.status-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.status-dot {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
}

.status-dot[data-state="listening"] {
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(62, 207, 142, 0.55);
  animation: pulse 1.6s ease-out infinite;
}

.status-dot[data-state="busy"] {
  background: var(--warn);
}

.status-dot[data-state="error"] {
  background: var(--danger);
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(62, 207, 142, 0.55); }
  70% { box-shadow: 0 0 0 14px rgba(62, 207, 142, 0); }
  100% { box-shadow: 0 0 0 0 rgba(62, 207, 142, 0); }
}

.status-text {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.meter {
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.meter-bar {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, #2fbf7a, #7dffb2);
  transition: width 0.08s linear;
}

.feed {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: clamp(1rem, 2.2vh, 1.75rem);
  overflow: hidden;
  min-height: 0;
  mask-image: linear-gradient(180deg, transparent 0%, #000 12%, #000 100%);
}

.line {
  animation: rise 0.35s ease;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.line-translated {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--translated-size);
  line-height: 1.22;
  letter-spacing: -0.01em;
  font-weight: 700;
  text-wrap: pretty;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.35);
}

.line-original {
  margin: 0.35rem 0 0;
  font-size: var(--original-size);
  line-height: 1.35;
  color: var(--muted);
  font-weight: 500;
}

.line-time {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.78rem;
  color: color-mix(in srgb, var(--muted) 70%, transparent);
  letter-spacing: 0.04em;
}

.live-line {
  padding: 0.95rem 1.1rem;
  border-radius: 14px;
  border: 1px dashed color-mix(in srgb, var(--accent) 45%, transparent);
  background: color-mix(in srgb, var(--accent-dim) 55%, transparent);
}

.live-label {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 700;
}

.live-original {
  margin: 0;
  font-size: calc(1.35rem * var(--scale));
  line-height: 1.35;
  font-weight: 600;
  color: #d7ffe9;
}

.footer {
  padding: 0 0.4rem;
}

.footer p {
  margin: 0;
  color: color-mix(in srgb, var(--muted) 85%, transparent);
  font-size: 0.82rem;
}

.app.is-fullscreen .topbar {
  opacity: 0.08;
  transition: opacity 0.25s ease;
}

.app.is-fullscreen:hover .topbar,
.app.is-fullscreen:focus-within .topbar {
  opacity: 1;
}

.app.is-fullscreen .footer {
  display: none;
}

.empty-hint {
  margin: auto;
  max-width: 28rem;
  text-align: center;
  color: var(--muted);
  font-size: calc(1.2rem * var(--scale));
  line-height: 1.5;
}

@media (max-width: 820px) {
  .topbar {
    align-items: stretch;
  }

  .controls {
    width: 100%;
  }

  .field {
    flex: 1 1 9rem;
  }

  .btn-primary {
    flex: 1 1 100%;
  }
}

@media (min-width: 1400px) {
  :root {
    --translated-size: calc(3.1rem * var(--scale));
  }
}