:root {
  --bg-1: #fef9ee;
  --bg-2: #d7e8f2;
  --ink: #1f2a44;
  --card: #ffffffde;
  --accent: #d94841;
  --accent-alt: #116466;
  --muted: #5a6480;
  --border: #24345f2b;
  --shadow: 0 20px 50px #1f2a4424;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  height: 100vh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 10% 10%, #fff6db 0%, transparent 40%),
    radial-gradient(circle at 90% 20%, #b6dce8 0%, transparent 45%),
    linear-gradient(155deg, var(--bg-1), var(--bg-2));
  overflow: hidden;
}

.app-shell {
  width: min(1440px, 100vw);
  height: 100%;
  margin: 0 auto;
  padding: 0.7rem 0.8rem;
  display: grid;
  grid-template-rows: auto 1fr;
}

.topbar h1 {
  margin: 0;
  font-family: "Fraunces", serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: 0.02em;
}

.topbar p {
  margin: 0.2rem 0 0.5rem;
  color: var(--muted);
}

.workspace {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
  grid-template-rows: 20% 80%;
  min-height: 0;
}

.top-half {
  overflow: auto;
}

.bottom-half {
  width: 100%;
  min-height: 0;
}

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: 16px;
  padding: 1rem;
  backdrop-filter: blur(3px);
}

.panel h2,
.panel h3 {
  margin-top: 0;
  margin-bottom: 0.35rem;
  font-family: "Fraunces", serif;
}

.panel h3 {
  font-size: 0.98rem;
}

button,
textarea {
  width: 100%;
  font: inherit;
  border-radius: 10px;
  border: 1px solid var(--border);
}

textarea {
  padding: 0.55rem 0.7rem;
  background: #ffffff;
}

button {
  padding: 0.65rem 0.8rem;
  background: #f8fbff;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
  cursor: pointer;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px #1f2a441f;
  background: #f1f8ff;
}

button:active {
  transform: translateY(1px);
}

button.danger {
  background: #ffeae7;
  border-color: #f5b6b0;
}

.actions-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
  margin-top: 0.5rem;
}

.score-canvas {
  width: 100%;
  height: calc(100% - 2.2rem);
  min-height: 260px;
  border-radius: 10px;
  background: linear-gradient(180deg, #ffffff, #f9fcff);
  border: 1px solid var(--border);
  overflow: auto;
}

.hint {
  color: var(--muted);
  font-size: 0.92rem;
}

.note-list {
  list-style: decimal;
  padding-left: 1.2rem;
  margin: 0.25rem 0 0;
  max-height: 150px;
  overflow: auto;
}

.note-list li {
  margin: 0.25rem 0;
  padding: 0.35rem 0.45rem;
  border-radius: 8px;
  cursor: pointer;
}

.note-list li:hover {
  background: #edf5fc;
}

.note-list li.active {
  background: #d8ebff;
  color: #0b2d4e;
  font-weight: 700;
}

textarea {
  margin-top: 0.45rem;
  resize: vertical;
  min-height: 74px;
}

.toolbar-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.85rem;
}

.toolbar-card {
  min-width: 0;
}

.notes-card,
.rests-card,
.meter-card,
.clef-card {
  align-self: start;
}

.systems-card {
  align-self: start;
}

.symbols-card {
  grid-column: 1 / -1;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.systems-controls {
  display: grid;
  gap: 0.45rem;
}

.system-tabs {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

button.system-tab {
  width: auto;
  padding: 0.36rem 0.6rem;
  border-radius: 999px;
  border: 1px solid #8fa9bb;
  background: #f7fbff;
  font-size: 0.86rem;
}

button.system-tab.active {
  background: #d9ecff;
  border-color: #3f8ac8;
  color: #0d3556;
  font-weight: 700;
}

.systems-actions {
  margin-top: 0;
}

.symbol-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

.symbol-group {
  padding: 0.42rem 0.48rem 0.5rem;
  border: 1px solid #d8e2ea;
  border-radius: 10px;
  background: #fbfdff;
}

.symbol-group h3 {
  margin: 0;
  font-size: 0.72rem;
  line-height: 1.1;
}

.symbol-group .chip-list {
  margin-top: 0.28rem;
  gap: 0.3rem;
}

button.chip {
  width: auto;
  padding: 0.42rem 0.65rem;
  border-radius: 999px;
  border: 1px solid #8fa9bb;
  background: #f8fcff;
}

button.icon-chip {
  width: 2.15rem;
  height: 2.15rem;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

button.icon-chip svg {
  width: 1.12rem;
  height: 1.12rem;
  stroke: currentColor;
  stroke-width: 1.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

button.chip.active {
  background: #d9ecff;
  border-color: #3f8ac8;
  color: #0d3556;
  font-weight: 700;
}

.sequence-area {
  margin-top: 0.6rem;
}

.sequence-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
}

.inline-actions {
  display: flex;
  gap: 0.45rem;
}

.inline-actions button {
  width: auto;
}

.io-area {
  margin-top: 0.5rem;
}

.time-signature-picker {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.ts-number {
  width: auto;
  min-width: 3.1rem;
  padding: 0.45rem 0.75rem;
  border-radius: 10px;
  border: 1px solid #8fa9bb;
  background: #ffffff;
  font-weight: 700;
  text-align: center;
}

.ts-separator {
  font-family: "Fraunces", serif;
  font-size: 1.3rem;
  color: #355170;
}

.ts-select {
  margin-top: 0.45rem;
  width: 6rem;
  min-height: 8.2rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #ffffff;
  padding: 0.3rem;
  font: inherit;
}

@media (max-width: 1050px) {
  body {
    height: auto;
    min-height: 100vh;
    overflow: auto;
  }

  .app-shell {
    height: auto;
  }

  .workspace {
    grid-template-rows: auto auto;
  }

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

  .symbols-card {
    grid-column: auto;
  }

  .symbol-groups {
    grid-template-columns: 1fr;
  }

  .sequence-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .actions-row {
    grid-template-columns: 1fr;
  }
}