:root {
  color-scheme: light;
  --bg: #f3f4f6;
  --panel: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --line: #d1d5db;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --primary-soft: #ccfbf1;
  --danger: #dc2626;
  --warning: #fff7ed;
  --warning-text: #9a3412;
  --shadow: 0 14px 34px rgba(17, 24, 39, 0.1);
  font-family:
    ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
}

button,
select,
textarea {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
}

.app-shell {
  width: min(100%, 560px);
  min-height: 100vh;
  margin: 0 auto;
  padding: max(16px, env(safe-area-inset-top)) 14px max(18px, env(safe-area-inset-bottom));
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 4px 0 14px;
}

.eyebrow,
h1,
p {
  margin: 0;
}

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

h1 {
  margin-top: 2px;
  font-size: 30px;
  line-height: 1.1;
}

.status-pill {
  flex: 0 0 auto;
  min-height: 32px;
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--primary-dark);
  background: var(--primary-soft);
  font-size: 12px;
  font-weight: 900;
}

.status-pill.offline {
  color: var(--warning-text);
  background: var(--warning);
}

.language-card,
.listen-card,
.translate-card,
.quick-card {
  margin-bottom: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.field,
.textarea-field {
  display: grid;
  gap: 7px;
}

.field span,
.textarea-field span,
.quick-head,
.result-head {
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
}

select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: #ffffff;
}

select {
  min-height: 48px;
  padding: 0 12px;
  font-weight: 800;
}

textarea {
  min-height: 132px;
  resize: vertical;
  padding: 12px;
  line-height: 1.55;
}

select:focus,
textarea:focus {
  border-color: var(--primary);
  outline: 3px solid rgba(15, 118, 110, 0.15);
}

.direction-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 12px;
}

.direction-button,
.primary-button,
.secondary-button,
.tiny-button {
  min-height: 44px;
  border-radius: 8px;
  font-weight: 900;
}

.direction-button {
  border: 1px solid var(--line);
  color: var(--muted);
  background: #ffffff;
}

.direction-button.active {
  border-color: var(--primary);
  color: #ffffff;
  background: var(--primary);
}

.listen-card {
  display: grid;
  gap: 12px;
}

.mic-button {
  display: grid;
  place-items: center;
  gap: 10px;
  min-height: 154px;
  border: 0;
  border-radius: 8px;
  color: #ffffff;
  background: #111827;
  font-size: 22px;
  font-weight: 1000;
}

.mic-button.listening {
  background: var(--danger);
}

.mic-dot {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: inset 0 -10px 0 rgba(255, 255, 255, 0.35);
}

.mic-button.listening .mic-dot {
  animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.24);
    opacity: 0.72;
  }
}

.live-status {
  min-height: 44px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--primary-dark);
  background: var(--primary-soft);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.45;
}

.live-status.warn {
  color: var(--warning-text);
  background: var(--warning);
}

.translate-card {
  display: grid;
  gap: 12px;
}

.primary-button {
  width: 100%;
  border: 1px solid var(--primary);
  color: #ffffff;
  background: var(--primary);
}

.primary-button:active {
  background: var(--primary-dark);
}

.result-box {
  min-height: 156px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fafb;
}

.result-head,
.quick-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.confidence {
  color: var(--primary-dark);
}

.result-text {
  margin-top: 10px;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 22px;
  font-weight: 900;
  line-height: 1.45;
}

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

.secondary-button,
.tiny-button {
  border: 1px solid var(--line);
  color: var(--text);
  background: #ffffff;
}

.tiny-button {
  min-height: 34px;
  padding: 0 10px;
  font-size: 13px;
}

.quick-list {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.quick-item {
  display: grid;
  gap: 4px;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: #ffffff;
  text-align: left;
}

.quick-item strong {
  font-size: 15px;
}

.quick-item span {
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 900;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: max(16px, env(safe-area-inset-bottom));
  z-index: 20;
  transform: translateX(-50%) translateY(18px);
  max-width: calc(100% - 28px);
  padding: 10px 14px;
  border-radius: 999px;
  color: #ffffff;
  background: rgba(17, 24, 39, 0.94);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  font-size: 14px;
  font-weight: 800;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 360px) {
  .direction-row,
  .action-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 26px;
  }

  .result-text {
    font-size: 19px;
  }
}