* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
}

[hidden] {
  display: none !important;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(420px, 1.12fr) minmax(340px, 0.88fr);
  align-items: start;
}

.workspace-pane,
.control-pane {
  display: grid;
  gap: 1rem;
}

.workspace-pane {
  padding: clamp(1rem, 2.2vw, 1.35rem);
}

.panel,
.preview-card {
  display: grid;
  gap: 1rem;
  padding: clamp(1rem, 2vw, 1.2rem);
}

.engine-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2rem;
  padding: 0.35rem 0.62rem;
  border: 1px solid rgba(15, 148, 140, 0.24);
  border-radius: 999px;
  color: var(--teal-dark);
  background: rgba(15, 148, 140, 0.08);
  font-size: 0.78rem;
  font-weight: 900;
  white-space: nowrap;
}

.engine-badge.recording {
  border-color: rgba(199, 93, 35, 0.34);
  color: #8f3519;
  background: rgba(199, 93, 35, 0.1);
}

.engine-badge.error {
  border-color: rgba(159, 54, 42, 0.38);
  color: #8f261d;
  background: rgba(159, 54, 42, 0.1);
}

.preview-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 250, 0.7);
}

.preview-toolbar,
.action-row,
.toggle-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  min-width: 0;
}

.preview-toolbar {
  justify-content: flex-end;
}

.preview-frame {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(18rem, 56vw, 36rem);
  overflow: hidden;
  border: 1px solid rgba(23, 33, 31, 0.16);
  border-radius: 8px;
  background:
    linear-gradient(45deg, rgba(23, 33, 31, 0.055) 25%, transparent 25% 75%, rgba(23, 33, 31, 0.055) 75%),
    linear-gradient(45deg, rgba(23, 33, 31, 0.055) 25%, transparent 25% 75%, rgba(23, 33, 31, 0.055) 75%),
    #101615;
  background-position: 0 0, 12px 12px;
  background-size: 24px 24px;
}

.preview-frame video {
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: contain;
  background: #101615;
}

.preview-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 0.9rem;
  padding: 1.5rem;
  color: rgba(255, 253, 250, 0.94);
  text-align: center;
  pointer-events: none;
}

.preview-frame.has-preview .preview-empty {
  display: none;
}

.record-glyph {
  width: 4rem;
  height: 4rem;
  border: 3px solid rgba(255, 253, 250, 0.84);
  border-radius: 50%;
  background:
    radial-gradient(circle at center, #c75d23 0 34%, transparent 35%),
    rgba(255, 253, 250, 0.1);
}

.workspace-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.workspace-stats div {
  min-width: 0;
  padding: 0.78rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 250, 0.72);
}

.workspace-stats span,
.helper-text {
  color: var(--muted);
  font-size: 0.82rem;
}

.workspace-stats strong {
  display: block;
  margin-top: 0.2rem;
  overflow: hidden;
  color: var(--ink);
  font-size: clamp(0.96rem, 2vw, 1.24rem);
  line-height: 1.08;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.button,
.mini-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2.45rem;
  border: 1px solid rgba(23, 33, 31, 0.14);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font-weight: 900;
  text-decoration: none;
}

.button {
  padding: 0.64rem 0.88rem;
}

.button.primary {
  border-color: rgba(10, 96, 92, 0.4);
  background: var(--teal);
  color: white;
}

.button.danger {
  border-color: rgba(159, 54, 42, 0.34);
  background: #c75d23;
  color: white;
}

.button.ghost {
  background: transparent;
}

.button:disabled,
.mini-button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

.mini-button {
  padding: 0.5rem 0.7rem;
  font-size: 0.86rem;
}

.button-icon {
  width: 1rem;
  height: 1rem;
  flex: 0 0 auto;
}

.record-icon {
  border-radius: 50%;
  background: currentColor;
}

.download-icon {
  background:
    linear-gradient(currentColor 0 0) 50% 10% / 18% 52% no-repeat,
    linear-gradient(135deg, transparent 0 42%, currentColor 42% 62%, transparent 62%) 50% 60% / 70% 46% no-repeat,
    linear-gradient(currentColor 0 0) 50% 90% / 82% 16% no-repeat;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
}

.mode-option {
  position: relative;
  display: grid;
  min-width: 0;
  cursor: pointer;
}

.mode-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.mode-option span {
  display: grid;
  gap: 0.25rem;
  min-height: 4.7rem;
  padding: 0.75rem;
  border: 1px solid rgba(23, 33, 31, 0.14);
  border-radius: 8px;
  background: rgba(255, 253, 250, 0.76);
}

.mode-option strong,
.mode-option small {
  min-width: 0;
}

.mode-option small {
  color: var(--muted);
  line-height: 1.25;
}

.mode-option input:checked + span {
  border-color: rgba(15, 148, 140, 0.54);
  box-shadow: inset 0 0 0 2px rgba(15, 148, 140, 0.16);
  background: rgba(237, 246, 243, 0.86);
}

.mode-option input:focus-visible + span {
  outline: 3px solid rgba(15, 148, 140, 0.22);
  outline-offset: 2px;
}

.record-actions .record-button {
  flex: 1 1 12rem;
}

.field-grid {
  display: grid;
  gap: 0.75rem;
}

.field-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field,
.checkline {
  display: grid;
  gap: 0.38rem;
}

.field.full {
  grid-column: 1 / -1;
}

.field span,
.checkline span {
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 850;
}

.field input,
.field select {
  width: 100%;
  min-width: 0;
  min-height: 2.45rem;
  border: 1px solid rgba(23, 33, 31, 0.16);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}

.field input:not([type="range"]),
.field select {
  padding: 0.55rem 0.7rem;
}

.field input[type="range"] {
  accent-color: var(--teal);
}

.checkline {
  grid-template-columns: auto 1fr;
  align-items: center;
  min-height: 2.25rem;
  padding: 0.4rem 0.55rem;
  border: 1px solid rgba(23, 33, 31, 0.12);
  border-radius: 8px;
  background: rgba(255, 253, 250, 0.58);
}

.checkline input {
  width: 1rem;
  height: 1rem;
  accent-color: var(--teal);
}

.recorder-controls .panel:last-child {
  margin-bottom: 0.25rem;
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .control-pane {
    padding-top: 0;
  }

  .preview-frame {
    min-height: clamp(15rem, 58vw, 28rem);
  }
}

@media (max-width: 680px) {
  .mode-grid,
  .field-grid.two,
  .workspace-stats {
    grid-template-columns: 1fr;
  }

  .preview-toolbar {
    justify-content: stretch;
  }

  .preview-toolbar .button,
  .action-row .button,
  .control-pane .button {
    flex: 1 1 auto;
  }
}