:root {
  --bg: #f7f0e4;
  --bg-accent: #efe2c8;
  --panel: rgba(255, 250, 241, 0.84);
  --panel-border: rgba(84, 58, 20, 0.12);
  --text: #20150c;
  --muted: #6d5b4a;
  --primary: #bf4b22;
  --primary-deep: #8f3212;
  --secondary: #0f6c78;
  --wave: #c6b39a;
  --shadow: 0 24px 60px rgba(71, 44, 13, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 108, 120, 0.14), transparent 30%),
    radial-gradient(circle at top right, rgba(191, 75, 34, 0.16), transparent 28%),
    linear-gradient(180deg, #f9f4eb 0%, var(--bg) 60%, var(--bg-accent) 100%);
}

button,
input {
  font: inherit;
}

.app-shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 64px;
}

.hero {
  padding: 8px 0 28px;
}

.eyebrow,
.label,
.waveform-hint,
.track-meta,
.empty-state {
  font-family: "IBM Plex Mono", monospace;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--secondary);
}

.hero h1,
.timeline-header h2,
.tips-panel h2,
.track-panel h2 {
  margin: 0;
  line-height: 1.05;
}

.hero h1 {
  max-width: 13ch;
  font-size: clamp(2.7rem, 7vw, 5.1rem);
}

.intro {
  max-width: 62ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.panel {
  margin-top: 24px;
  padding: 24px;
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  background: var(--panel);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.upload-card {
  display: block;
  padding: 28px;
  border: 2px dashed rgba(15, 108, 120, 0.28);
  border-radius: 24px;
  background: rgba(15, 108, 120, 0.05);
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.upload-card:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 108, 120, 0.46);
  background: rgba(15, 108, 120, 0.08);
}

.upload-card.drag-active {
  transform: translateY(-2px);
  border-color: rgba(191, 75, 34, 0.56);
  background: rgba(191, 75, 34, 0.09);
  box-shadow: inset 0 0 0 1px rgba(191, 75, 34, 0.18);
}

.upload-card input {
  display: none;
}

.upload-title {
  display: block;
  font-size: 1.3rem;
  font-weight: 700;
}

.upload-subtitle {
  display: block;
  margin-top: 8px;
  color: var(--muted);
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.status-grid > div {
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.45);
}

.defaults-panel {
  margin-top: 18px;
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.45);
}

.defaults-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.defaults-group {
  margin-top: 16px;
}

.defaults-readout {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 14px;
  color: var(--muted);
}

.small-action {
  margin-top: 12px;
  padding: 8px 12px;
  font-size: 0.88rem;
}

.label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.track-panel-header,
.timeline-header,
.time-readout,
.controls,
.batch-actions {
  display: flex;
  align-items: center;
}

.track-panel-header,
.timeline-header {
  justify-content: space-between;
  gap: 20px;
}

.editor-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 14px;
  color: var(--muted);
  justify-content: flex-end;
}

.editor-panel {
  position: sticky;
  top: 16px;
  z-index: 5;
}

.track-list {
  margin-top: 20px;
  overflow-x: auto;
}

.batch-actions {
  gap: 12px;
}

.zip-progress-panel {
  margin-top: 16px;
}

.zip-progress-bar {
  width: 100%;
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(32, 21, 12, 0.08);
}

.zip-progress-fill {
  width: 0%;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--secondary), var(--primary));
  transition: width 160ms ease;
}

.zip-progress {
  margin-top: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  color: var(--muted);
  text-align: center;
}

.empty-state {
  margin: 0;
  padding: 22px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.46);
  color: var(--muted);
  font-size: 0.82rem;
}

.track-table {
  width: 100%;
  border-collapse: collapse;
}

.track-table thead th {
  padding: 0 12px 12px;
  text-align: left;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.track-table tbody tr {
  border-top: 1px solid rgba(15, 108, 120, 0.1);
}

.track-table tbody tr.active {
  background: rgba(191, 75, 34, 0.08);
}

.track-table td {
  padding: 16px 12px;
  vertical-align: middle;
}

.track-index {
  width: 56px;
  font-family: "IBM Plex Mono", monospace;
  color: var(--muted);
}

.track-name-cell {
  min-width: 260px;
}

.track-item {
  display: flex;
  align-items: center;
  width: 100%;
}

.track-select {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  border-radius: 0;
}

.track-title {
  display: block;
  font-weight: 700;
}

.track-meta {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
}

.track-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.track-save {
  padding: 10px 14px;
  font-size: 0.9rem;
}

.track-action-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.track-remove {
  padding: 10px 14px;
  font-size: 0.9rem;
}

.time-readout {
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
}

.waveform-wrap {
  margin-top: 20px;
}

canvas {
  width: 100%;
  height: 220px;
  display: block;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(15, 108, 120, 0.12), rgba(15, 108, 120, 0.04)),
    rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(15, 108, 120, 0.12);
  cursor: crosshair;
}

.waveform-hint {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--muted);
}

.slider-group {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.slider-row {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
}

.slider-row .label {
  margin-bottom: 0;
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}

.toggle-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--secondary);
}

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

.controls {
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

button {
  padding: 14px 18px;
  border: 0;
  border-radius: 999px;
  background: var(--secondary);
  color: #fff;
  cursor: pointer;
  transition: transform 140ms ease, opacity 140ms ease, background 140ms ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

button.ghost {
  background: rgba(32, 21, 12, 0.08);
  color: var(--text);
}

button.accent {
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
}

button.download {
  background:  rgb(195, 127, 71);
}
.tips-panel p {
  margin: 10px 0 0;
  color: var(--muted);
}

@media (max-width: 900px) {
  .track-table thead {
    display: none;
  }

  .track-table,
  .track-table tbody,
  .track-table tr,
  .track-table td {
    display: block;
    width: 100%;
  }

  .track-table tbody tr {
    margin-bottom: 14px;
    border: 1px solid rgba(15, 108, 120, 0.1);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.46);
  }

  .track-table td {
    padding: 10px 14px;
    border-top: 0;
  }

  .track-index {
    padding-top: 14px;
    font-size: 0.78rem;
  }
}

@media (max-width: 800px) {
  .app-shell {
    width: min(100% - 20px, 1240px);
    padding-top: 28px;
  }

  .panel {
    padding: 18px;
    border-radius: 22px;
  }

  .status-grid {
    grid-template-columns: 1fr;
  }

  .timeline-header,
  .track-panel-header,
  .defaults-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .batch-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .hero h1 {
    max-width: none;
  }

  .track-actions {
    justify-content: flex-start;
  }

  .slider-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .editor-stats {
    justify-content: flex-start;
  }

  .defaults-readout {
    justify-content: flex-start;
  }
}