:root {
  --bg: #f4efe6;
  --surface: rgba(255, 250, 240, 0.9);
  --ink: #1e2a2f;
  --ink-soft: #5c696f;
  --accent: #ffcb3d;
  --accent-dark: #684c00;
  --signal: #1c7ed6;
  --success: #2f9e44;
  --danger: #d6336c;
  --danger-soft: rgba(214, 51, 108, 0.14);
  --shadow: 0 18px 60px rgba(49, 36, 17, 0.1);
  --radius: 26px;
  --radius-small: 16px;
  --font-ui: "Trebuchet MS", "Aptos", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 203, 61, 0.18), transparent 28%),
    radial-gradient(circle at bottom right, rgba(28, 126, 214, 0.12), transparent 32%),
    linear-gradient(180deg, #fffaf2 0%, #f4efe6 55%, #efe7d7 100%);
}

.page-shell {
  width: min(1480px, calc(100vw - 36px));
  margin: 18px auto;
  display: grid;
  gap: 18px;
}

.hero,
.card,
.status-bar {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.hero {
  border-radius: var(--radius);
  padding: 22px 24px;
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1.4fr) minmax(360px, 0.9fr);
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-dark);
}

.hero h1,
.card-head h2 {
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  line-height: 0.96;
}

.hero-text,
.card-head p,
.workflow-copy p {
  margin: 10px 0 0;
  color: var(--ink-soft);
  line-height: 1.45;
}

.hero-actions,
.studio,
.sidebar,
.sample-stats,
.detail-grid,
.panel-stack,
.workflow-copy,
.midi-log {
  display: grid;
  gap: 10px;
}

.workspace {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1.6fr) minmax(320px, 0.75fr);
}

.card {
  border-radius: var(--radius);
  padding: 18px;
}

.midi-control-card {
  display: grid;
  gap: 14px;
}

.midi-control-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(190px, auto) repeat(2, minmax(0, 1fr));
  align-items: end;
}

.control-field {
  display: grid;
  gap: 8px;
}

.studio-toolbar,
.button-row,
.card-head {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
}

.compact-row {
  justify-content: flex-end;
}

.segment-toggle {
  display: inline-flex;
  padding: 4px;
  border-radius: 999px;
  background: rgba(30, 42, 47, 0.08);
}

.segment-toggle-button {
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  padding: 10px 14px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.segment-toggle-button.is-active {
  background: linear-gradient(135deg, #2c3e46 0%, #1f2c31 100%);
  color: #fffdf6;
}

.button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 11px 15px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  justify-content: center;
  align-items: center;
}

.button-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #ffd86d 100%);
  color: #2d2200;
}

.button.is-busy {
  background: linear-gradient(135deg, #b42318 0%, #d6336c 100%);
  color: #fff8f8;
}

.button.is-busy::before {
  content: '';
  width: 14px;
  height: 14px;
  border-radius: 999px;
  border: 2px solid rgba(255, 248, 248, 0.38);
  border-top-color: #fff;
  animation: button-spin 0.85s linear infinite;
}

.button:disabled {
  opacity: 0.58;
  cursor: not-allowed;
}

.button-secondary,
.button-ghost {
  background: rgba(30, 42, 47, 0.08);
  color: var(--ink);
}

.button-danger {
  background: rgba(214, 51, 108, 0.14);
  color: #9c1a49;
}

.editor-frame {
  margin-top: 14px;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(30, 42, 47, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(255, 250, 240, 0.88));
}

#curve-editor,
#sample-preview {
  width: 100%;
  display: block;
}

#curve-editor {
  touch-action: none;
}

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

.detail-item {
  padding: 12px 14px;
  border-radius: var(--radius-small);
  background: rgba(30, 42, 47, 0.05);
}

.detail-item span {
  display: block;
  font-size: 0.78rem;
  color: var(--ink-soft);
  text-transform: uppercase;
}

.detail-item strong {
  display: block;
  margin-top: 6px;
  font-size: 1.08rem;
}

.field-label {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.field-select {
  width: 100%;
  border: 1px solid rgba(30, 42, 47, 0.12);
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
  background: rgba(255, 255, 255, 0.84);
}

.info-box {
  border-radius: 16px;
  padding: 12px 14px;
  line-height: 1.45;
}

.info-box-muted {
  background: rgba(30, 42, 47, 0.05);
  color: var(--ink-soft);
}

.info-box-success {
  background: rgba(47, 158, 68, 0.12);
  color: #1c6b2f;
}

.info-box-danger {
  background: var(--danger-soft);
  color: #9c1a49;
}

.text-link {
  color: var(--signal);
  font-weight: 700;
  text-decoration: none;
}

.status-bar {
  border-radius: 999px;
  padding: 10px 12px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 12px;
  border-radius: 999px;
  font-weight: 700;
}

.status-pill-muted {
  background: rgba(30, 42, 47, 0.08);
  color: var(--ink-soft);
}

.status-pill-success {
  background: rgba(47, 158, 68, 0.12);
  color: #1c6b2f;
}

.status-pill-danger {
  background: var(--danger-soft);
  color: #9c1a49;
}

.status-pill-inline {
  flex: 1 1 320px;
  justify-content: flex-start;
}

.plot-surface {
  fill: rgba(255, 255, 255, 0.9);
  stroke: rgba(30, 42, 47, 0.08);
  stroke-width: 1;
  pointer-events: none;
}

.grid-line {
  stroke: rgba(30, 42, 47, 0.1);
  stroke-width: 1;
  pointer-events: none;
}

.axis-label {
  fill: var(--ink-soft);
  font-size: 17px;
  font-weight: 700;
  pointer-events: none;
}

.sample-line {
  fill: none;
  stroke: rgba(28, 126, 214, 0.34);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

.curve-path {
  fill: none;
  stroke-width: 5;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

.curve-path.white {
  stroke: #f3a600;
}

.curve-path.black {
  stroke: #252f34;
}

.handle-line {
  stroke: rgba(30, 42, 47, 0.22);
  stroke-width: 2;
  stroke-dasharray: 7 7;
  marker-end: url(#handle-arrow);
  pointer-events: none;
}

.midi-guide-line {
  stroke: rgba(214, 51, 108, 0.68);
  stroke-width: 2;
  stroke-dasharray: 9 7;
  pointer-events: none;
}

.midi-probe-group {
  pointer-events: none;
}

.midi-probe-point {
  stroke-width: 3;
  pointer-events: none;
}

.midi-probe-point.white {
  fill: #fff7d1;
  stroke: #d97706;
}

.midi-probe-point.black {
  fill: #1e2a2f;
  stroke: #ffcb3d;
}

.anchor-point {
  fill: #fffdf6;
  stroke: #1e2a2f;
  stroke-width: 2;
  cursor: grab;
}

.anchor-point.is-selected {
  fill: var(--accent);
  stroke: #2d2200;
  stroke-width: 3;
}

.handle-point {
  fill: var(--signal);
  stroke: #fff;
  stroke-width: 2;
  cursor: grab;
}

.plot-hitbox {
  fill: transparent;
  cursor: crosshair;
}

.midi-log {
  min-height: 0;
  height: 100%;
  max-height: none;
  overflow: auto;
}

.midi-log-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 260px;
  overflow: hidden;
}

.midi-log-row,
.midi-log-empty {
  border-radius: var(--radius-small);
  background: rgba(30, 42, 47, 0.05);
  padding: 12px 14px;
}

.midi-log-row {
  display: grid;
  gap: 8px;
}

.midi-log-head,
.midi-log-values {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
  justify-content: space-between;
}

.midi-log-time {
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.midi-log-note {
  font-weight: 800;
}

.midi-log-key {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
}

.midi-log-key.white {
  background: rgba(243, 166, 0, 0.14);
  color: #8d5a00;
}

.midi-log-key.black {
  background: rgba(30, 42, 47, 0.12);
  color: var(--ink);
}

.midi-log-value {
  font-size: 0.92rem;
  font-weight: 700;
}

.midi-log-value span {
  margin-right: 6px;
  color: var(--ink-soft);
  font-weight: 600;
}

.midi-log-empty {
  color: var(--ink-soft);
  line-height: 1.45;
}

@media (max-width: 1120px) {
  .hero,
  .workspace {
    grid-template-columns: 1fr;
  }

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

  .midi-log {
    max-height: none;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100vw - 18px, 1480px);
    margin: 9px auto;
  }

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

  .midi-control-grid {
    grid-template-columns: 1fr;
  }
}

@keyframes button-spin {
  to {
    transform: rotate(360deg);
  }
}