/* ── GP Tab Editor — A.T 吉他譜風格 ──────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700;900&family=Noto+Serif+TC:wght@400;700;900&display=swap');

:root {
  --bg: #faf7f0;
  --surface: #f3ede0;
  --card: #ede8dc;
  --border: #c8bfac;
  --accent: #8b3a3a;
  --accent2: #3a5f8b;
  --text: #1a1209;
  --muted: #7a6e60;
  --green: #4a9e6b;
  --red: #c0392b;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans TC', system-ui, sans-serif;
  font-size: 14px;
  min-height: 100vh;
  overflow: hidden;
}

.app { display: flex; flex-direction: column; height: 100vh; }

/* ── Header ──────────────────────────────────────────────── */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 20px;
  background: rgba(250, 247, 240, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  gap: 10px;
  flex-shrink: 0;
  height: 48px;
}

.header-left { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.header-right { display: flex; align-items: center; gap: 8px; }

.logo {
  font-family: 'Noto Serif TC', serif;
  font-weight: 900;
  font-size: 16px;
  color: var(--accent);
  white-space: nowrap;
}

.logo-link { display: inline-flex; align-items: center; text-decoration: none; flex-shrink: 0; }
.logo-img { height: 72px; margin: -18px -6px; display: block; }

/* ── User dropdown (matches other pages) ──────────────────── */
.nav-cta {
  padding: 6px 14px;
  background: var(--accent2);
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  transition: background .2s;
}
.nav-cta:hover { background: #2d5a8e; }

.user-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px 3px 3px;
  border-radius: 22px;
  border: 1px solid var(--border);
  cursor: pointer;
  background: var(--surface);
  font-family: inherit;
  font-size: 12px;
  color: var(--text);
  transition: background .15s;
  white-space: nowrap;
}
.user-btn:hover { background: var(--card); }

.nav-avatar {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--accent2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  overflow: hidden;
  flex-shrink: 0;
}
.nav-avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }

.user-name-label {
  max-width: 110px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#user-dropdown {
  display: none;
  position: fixed;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,.14);
  z-index: 500;
  min-width: 200px;
  overflow: hidden;
}
#user-dropdown.open { display: block; }
#user-dropdown .udrop-email {
  padding: 12px 16px 10px;
  font-size: 11px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  word-break: break-all;
}
#user-dropdown a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  text-decoration: none;
  color: var(--text);
  font-size: 13px;
  transition: background .1s;
}
#user-dropdown .udrop-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}
#user-dropdown a:hover { background: var(--surface); }
#user-dropdown .udrop-sep { height: 1px; background: var(--border); }
#user-dropdown a.udrop-danger { color: #c0392b; }

.title-input {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 4px 10px;
  font: inherit;
  font-weight: 500;
  width: 160px;
}
.title-input:focus { outline: none; border-color: var(--accent2); }

.tempo-label {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.tempo-input, .ts-input {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 4px 6px;
  font: inherit;
  text-align: center;
}
.tempo-input { width: 56px; }
input.ts-input { width: 38px; }
select.ts-input { width: 46px; padding: 4px 2px; }
.tempo-input:focus, .ts-input:focus { outline: none; border-color: var(--accent2); }

.small-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  padding: 3px 8px;
  font-size: 11px;
  cursor: pointer;
  white-space: nowrap;
}
.small-btn:hover { background: var(--card); color: var(--text); }

.icon-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .15s;
}
.icon-btn:hover { color: var(--text); background: var(--card); }

/* ── Toolbar ─────────────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  padding: 4px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  gap: 3px;
  flex-shrink: 0;
  flex-wrap: wrap;
}
.tool-group { display: flex; gap: 2px; }
.tool-sep { width: 1px; height: 22px; background: var(--border); margin: 0 6px; }

.tool-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--muted);
  padding: 4px 9px;
  cursor: pointer;
  font-size: 14px;
  min-width: 34px;
  text-align: center;
  transition: all .15s;
  font-family: inherit;
}
.tool-btn:hover { background: #fff; color: var(--text); border-color: var(--border); }
.tool-btn.active { background: var(--accent2); color: #fff; border-color: var(--accent2); }

/* ── Score Area ──────────────────────────────────────────── */
.score-container { flex: 1; overflow-y: auto; overflow-x: hidden; background: #faf8f3; }
.score-container canvas { display: block; outline: none; cursor: crosshair; }
.score-container canvas.layout-drag { cursor: col-resize; }
.score-container canvas:focus { outline: none; }

/* ── Status Bar ──────────────────────────────────────────── */
.status-bar {
  display: flex;
  align-items: center;
  padding: 4px 20px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--muted);
  gap: 8px;
  flex-shrink: 0;
  overflow: hidden;
  white-space: nowrap;
  height: 28px;
}
.status-sep { color: var(--border); }
.status-hint { margin-left: auto; opacity: 0.7; }

/* ── Panels (Settings, Metronome, Shortcuts) ─────────────── */
.panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  z-index: 100;
  max-width: 520px;
  min-width: 320px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 4px 24px rgba(0,0,0,.12);
}
.panel.hidden { display: none; }
.panel h3 { margin-bottom: 14px; font-size: 15px; font-weight: 700; }

.panel-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.panel-row label { font-size: 13px; color: var(--text); }
.panel-hint { font-size: 11px; color: var(--muted); }

.small-input {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  width: 60px;
  font: inherit;
  text-align: center;
}
.small-input:focus { outline: none; border-color: var(--accent2); }

.small-select {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  font: inherit;
  color: var(--text);
}

.bend-select {
  width: 60px;
  padding: 2px 4px;
  font-size: 12px;
}

/* ── Metronome Inline (Toolbar) ─────────────────────────── */
.metro-group { align-items: center; gap: 6px; }

.metro-inline-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
}
.metro-inline-label input[type="checkbox"] { margin: 0; }

.metro-beats-row { display: flex; gap: 3px; }

.metro-beat-btn {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: all .15s;
  padding: 0;
  line-height: 1;
}
.metro-beat-btn.metro-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.metro-beat-btn.metro-normal {
  background: var(--accent2);
  border-color: var(--accent2);
  color: #fff;
}
.metro-beat-btn.metro-silent {
  background: transparent;
  border-color: var(--border);
  color: var(--muted);
}

.metro-vol-slider { width: 56px; cursor: pointer; }

/* ── Shortcuts Grid ──────────────────────────────────────── */
.shortcut-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 5px 16px;
  font-size: 12px;
  color: var(--muted);
}
.sc-section {
  grid-column: 1 / -1;
  font-weight: 700;
  color: var(--text);
  margin-top: 8px;
  font-size: 13px;
}
.shortcut-grid kbd {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: "Courier New", monospace;
  font-size: 11px;
  color: var(--accent2);
}

/* ── Tuning Panel & Display ─────────────────────────────── */
.tuning-display {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
  white-space: nowrap;
}

.tuning-strings { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.tuning-string-row { display: flex; align-items: center; gap: 8px; }
.tuning-string-row label { font-size: 13px; color: var(--text); width: 60px; }
.tune-select {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 6px;
  font: inherit;
  font-size: 13px;
  color: var(--text);
}

/* ── Save Button ─────────────────────────────────────────── */
.save-btn { background: var(--accent2); color: #fff; font-weight: 600; }
.save-btn:hover { background: #2d4e73; }
.save-indicator { font-size: 11px; color: var(--accent2); margin-left: 4px; vertical-align: middle; }

/* ── Cloud List Panel ────────────────────────────────────── */
.cloud-list { max-height: 340px; overflow-y: auto; }
.cloud-empty { color: var(--muted); font-size: 13px; text-align: center; padding: 20px 0; }
.cloud-empty a { color: var(--accent2); text-decoration: underline; }
.cloud-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 10px; border-radius: 6px; cursor: pointer;
  transition: background .15s;
}
.cloud-item:hover { background: var(--surface); }
.cloud-item-active { background: rgba(58,95,139,0.08); }
.cloud-item-info { flex: 1; min-width: 0; }
.cloud-item-title { font-size: 13px; font-weight: 600; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cloud-item-date { font-size: 11px; color: var(--muted); }
.cloud-item-del {
  border: none; background: none; color: var(--muted); cursor: pointer;
  font-size: 14px; padding: 2px 6px; border-radius: 4px;
}
.cloud-item-del:hover { background: var(--accent); color: #fff; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 620px) {
  .header { padding: 4px 10px; flex-wrap: wrap; height: auto; }
  .toolbar { padding: 3px 10px; }
  .title-input { width: 100px; }
  .status-hint { display: none; }
  .panel { max-width: 95vw; min-width: 0; padding: 16px; }
}