/* ===========================================================================
   song-creator.css — piano-roll tab editor, rebuilt on the shared tokens.
   Class names are unchanged so song-creator.js keeps working as written.
   =========================================================================== */

html, body { height: 100%; overflow: hidden; }
body { display: flex; flex-direction: column; }

/* ── Header ─────────────────────────────────────────────────────────── */

header {
  flex: none;
  height: 52px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 18px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
}
.logo-icon { display: none; }
.logo-text { letter-spacing: -0.01em; }
.logo::before {
  content: '';
  width: 18px; height: 18px;
  border-radius: 4px;
  background: var(--accent);
  flex: none;
}

.sc-page-title {
  font-size: 12px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--dimmer);
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.sc-back-btn {
  margin-left: auto;
  font-size: 13px;
  font-weight: 500;
  color: var(--dim);
  padding: 6px 12px;
  border-radius: var(--r);
  border: 1px solid var(--line);
  transition: background .12s ease, color .12s ease;
}
.sc-back-btn:hover { background: var(--surface); color: var(--text); }

/* ── Meta bar ───────────────────────────────────────────────────────── */

.sc-meta-bar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 10px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  flex-wrap: wrap;
}

.sc-meta-group { display: flex; align-items: center; gap: 8px; }
.sc-meta-group label {
  font-size: 10px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--dimmer);
  white-space: nowrap;
}

.sc-meta-group input[type="text"],
.sc-meta-group input[type="number"],
.sc-meta-group select {
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  padding: 5px 9px;
  border-radius: var(--r);
}
.sc-meta-group input[type="text"] { width: 150px; }
.sc-meta-bpm input { width: 62px; }
.sc-meta-group select { padding-right: 26px; }

input[type="color"] {
  width: 28px; height: 26px;
  padding: 2px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--bg);
  cursor: pointer;
}

/* ── Toolbar ────────────────────────────────────────────────────────── */

.sc-toolbar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}

.sc-tool-group {
  display: flex;
  align-items: center;
  gap: 4px;
  padding-right: 10px;
  margin-right: 4px;
  border-right: 1px solid var(--line);
}
.sc-tool-group:last-child { border-right: 0; }
.sc-right-tools { margin-left: auto; border-right: 0; padding-right: 0; gap: 8px; }

.sc-tool-label {
  font-size: 10px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--dimmer);
  margin-right: 4px;
  white-space: nowrap;
}

.sc-snap-btn, .sc-dur-btn, .sc-zoom-btn, .sc-action-btn,
.sc-import-btn, .sc-code-btn, .sc-stepper, .sc-tech,
.sc-copy-btn, .sc-popup-apply, .sc-popup-delete {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--dim);
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: var(--r);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background .12s ease, color .12s ease, border-color .12s ease;
}
.sc-snap-btn:hover, .sc-dur-btn:hover, .sc-zoom-btn:hover, .sc-action-btn:hover,
.sc-import-btn:hover, .sc-code-btn:hover, .sc-stepper:hover, .sc-tech:hover,
.sc-copy-btn:hover, .sc-popup-apply:hover, .sc-popup-delete:hover {
  background: var(--surface-2);
  color: var(--text);
}

.sc-snap-btn.active, .sc-dur-btn.active, .sc-tech.active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.sc-zoom-btn { width: 26px; justify-content: center; padding: 5px 0; }
.sc-zoom-level {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  min-width: 42px;
  text-align: center;
}

.sc-danger-btn:hover { color: var(--bad); border-color: #3a2422; }

.sc-code-btn {
  background: var(--accent);
  border-color: var(--accent);
  color: #0b0d10;
  font-weight: 600;
}
.sc-code-btn:hover { background: #82adee; border-color: #82adee; color: #0b0d10; }

/* ── Help strip ─────────────────────────────────────────────────────── */

.sc-help-strip {
  flex: none;
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 7px 18px;
  font-size: 11px;
  color: var(--dimmer);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  flex-wrap: wrap;
}
.sc-sep { color: var(--surface-3); }

/* ── Editor ─────────────────────────────────────────────────────────── */

.sc-editor-wrap {
  flex: 1;
  display: flex;
  align-items: flex-start;
  min-height: 0;
  overflow: hidden;
}

.sc-string-labels {
  flex: none;
  width: 58px;
  border-right: 1px solid var(--line);
  background: var(--bg);
  position: relative;
  z-index: 2;
}

.sc-ruler-spacer { border-bottom: 1px solid var(--line); }

.sc-string-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  position: relative;
}
.sc-string-label .sc-str-num {
  position: absolute;
  top: 5px; right: 6px;
  font-size: 9px;
  color: var(--dimmer);
  font-weight: 500;
}

.sc-canvas-wrapper {
  flex: 1;
  overflow-x: auto;
  overflow-y: hidden;
  background: var(--bg);
}
#sc-canvas { display: block; }

/* ── Note popup ─────────────────────────────────────────────────────── */

.sc-popup {
  position: fixed;
  z-index: 60;
  width: 266px;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .55);
  display: none;
}
.sc-popup.open { display: block; }

.sc-popup-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 13px;
  border-bottom: 1px solid var(--line);
}
.sc-popup-dot { width: 8px; height: 8px; border-radius: 2px; flex: none; }
.sc-popup-title { font-size: 13px; font-weight: 600; }
.sc-popup-x {
  margin-left: auto;
  background: none; border: 0;
  color: var(--dimmer);
  font-size: 17px;
  line-height: 1;
  cursor: pointer;
  padding: 0 2px;
}
.sc-popup-x:hover { color: var(--text); }

.sc-popup-body { padding: 13px; display: flex; flex-direction: column; gap: 13px; }
.sc-popup-row { display: flex; flex-direction: column; gap: 6px; }
.sc-popup-row > label {
  font-size: 10px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--dimmer);
}

.sc-fret-row, .sc-dur-row { display: flex; align-items: center; gap: 6px; }
.sc-fret-row input, .sc-dur-row input {
  width: 64px;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  font: inherit;
  font-family: var(--mono);
  font-size: 13px;
  padding: 5px 8px;
  border-radius: var(--r);
  text-align: center;
}
.sc-stepper { width: 26px; justify-content: center; padding: 5px 0; }
.sc-fret-hint { font-size: 11px; color: var(--dimmer); }

.sc-tech-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; }
.sc-tech { justify-content: space-between; font-size: 11px; padding: 5px 8px; }
.sc-tech em { font-style: normal; font-family: var(--mono); color: var(--dimmer); }
.sc-tech.active em { color: var(--accent); }

.sc-popup-footer {
  display: flex;
  gap: 8px;
  padding: 11px 13px;
  border-top: 1px solid var(--line);
}
.sc-popup-delete { flex: 1; justify-content: center; }
.sc-popup-delete:hover { color: var(--bad); border-color: #3a2422; }
.sc-popup-apply {
  flex: 1;
  justify-content: center;
  background: var(--accent);
  border-color: var(--accent);
  color: #0b0d10;
  font-weight: 600;
}
.sc-popup-apply:hover { background: #82adee; border-color: #82adee; color: #0b0d10; }

/* ── Modals ─────────────────────────────────────────────────────────── */

.sc-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 9, 11, .78);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 80;
  padding: 24px;
}
.sc-modal-overlay.open { display: flex; }

.sc-modal {
  width: min(760px, 100%);
  max-height: 84vh;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.sc-modal-header {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 15px 18px;
  border-bottom: 1px solid var(--line);
}
.sc-modal-header h2 {
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sc-modal-header svg { color: var(--dim); }
.sc-modal-close {
  margin-left: auto;
  background: none; border: 0;
  color: var(--dimmer);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}
.sc-modal-close:hover { color: var(--text); }

.sc-modal-hint {
  margin: 0;
  padding: 13px 18px 0;
  font-size: 12px;
  color: var(--dim);
  line-height: 1.6;
}
.sc-modal-hint code {
  font-family: var(--mono);
  font-size: 11px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 1px 5px;
  color: var(--text);
}

.sc-code-block {
  margin: 13px 18px;
  padding: 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text);
  overflow: auto;
  flex: 1;
  white-space: pre;
}

.sc-import-area {
  margin: 13px 18px;
  padding: 14px;
  min-height: 220px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--text);
  resize: vertical;
}
.sc-import-area:focus { outline: none; border-color: var(--accent); }

.sc-import-error {
  padding: 0 18px;
  font-size: 12px;
  color: var(--bad);
  min-height: 16px;
}

.sc-modal-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: flex-end;
  padding: 13px 18px;
  border-top: 1px solid var(--line);
}
.sc-import-keep-label {
  margin-right: auto;
  font-size: 12px;
  color: var(--dim);
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
}
.sc-copy-btn {
  background: var(--accent);
  border-color: var(--accent);
  color: #0b0d10;
  font-weight: 600;
  padding: 7px 14px;
}
.sc-copy-btn:hover { background: #82adee; border-color: #82adee; color: #0b0d10; }