body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
  padding: 20px;
  background: #fafafa;
  color: #222;
}

/* Header / auth link layout */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 960px;
  margin: 0 auto 12px auto;
  padding: 0 10px;
}
.site-header h1 { margin: 0; font-size: 20px; }
.auth-links { font-size: 14px; color: #333; }
.auth-links a { color: #0366d6; text-decoration: none; }
.auth-links a:hover { text-decoration: underline; }

/* Inline logout form styled to look like a link */
.auth-logout-form { display: inline; margin: 0; padding: 0; }
.auth-logout-form .link-button {
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  color: #0366d6;
  text-decoration: none;
  cursor: pointer;
  font: inherit;
}
.auth-logout-form .link-button:hover { text-decoration: underline; }

/* Stats table */
.stats-table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.stats-table th, .stats-table td { padding: 8px 10px; border: 1px solid #e6e6e6; text-align: left; }
.stats-summary p { margin: 6px 0; }

h1 {
  text-align: center;
}

#staff_container {
  width: 700px;
  height: 150px;
  margin: 20px auto;
  background: white;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  border-radius: 6px;
  padding-top: 6px;
}

/* Layout: main area + range sidebar */
.layout {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 18px;
}

.main-area {
  width: 700px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

#range_container {
  width: 140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.aside-stats-box {
  width: 120px;
  background: #fff;
  border: 1px solid rgba(0,0,0,0.06);
  padding: 8px;
  border-radius: 8px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  text-align: center;
  margin-bottom: 8px;
}

.aside-stats-box .big-stat {
  font-size: 18px;
  font-weight: 700;
  color: #222;
}

#controls {
  width: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 6px 0 0 0;
}

/* Top controls above the staff */
.top-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: 700px;
  margin: 0 auto 8px auto;
}
.top-left { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.top-right { display: flex; gap: 8px; align-items: center; }
.timed-inline { display: inline-flex; align-items: center; gap: 6px; }

/* Settings box below the staff: center contents vertically */
#game_settings {
  display: flex;
  align-items: center; /* vertically center text and buttons */
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  box-sizing: border-box;
}
#game_settings p#question_label { margin: 0; font-weight: 600; }
#game_settings button { margin-left: 6px; }

@media (max-width: 520px) {
  #game_settings { flex-direction: column; align-items: center; gap: 8px; }
}

#note_input {
  font-size: 18px;
  padding: 6px 8px;
  width: 80px;
  text-align: center;
}

#feedback {
  margin-top: 8px;
  height: 22px;
}

#game_settings {
  margin-top: 12px;
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.score {
  margin-left: 1rem;
  font-weight: 600;
}


.timed-block {
  display: flex;
  flex-direction: row;
  gap: 12px;
  align-items: center;
}

.time-limit {
  display: flex;
  gap: 6px;
  align-items: center;
}

@media (max-width: 520px) {
  #game_settings { width: 100%; }
  .timed-block { flex-direction: column; align-items: stretch; }
  .time-limit { justify-content: space-between; }
}

#note_buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px 10px;
  justify-items: center;
  margin-top: 8px;
  width: 100%;
  max-width: 420px; /* keep buttons from stretching too wide */
}
#note_buttons button {
  padding: 6px 8px;
  font-size: 14px;
  border-radius: 4px;
  border: 1px solid #ccc;
  background: white;
  cursor: pointer;
}
#note_buttons button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Range selector styles */
#range_label {
  font-size: 13px;
  color: #333;
}
#range_selector {
  position: relative;
  width: 100px;
  height: 420px; /* extended to fit full Ab3 -> C#6 range */
  display: flex;
  align-items: center;
  justify-content: center;
}
#range_track {
  position: absolute;
  left: 8px;
  right: 8px;
  top: 0;
  bottom: 0;
  background: linear-gradient(#e0e0e0, #e0e0e0);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.tick {
  width: 100%;
  box-sizing: border-box;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 0%;
  font-size: 11px;
  color: #333;
}
.tick.in-range {
  background: #cfe8ff; /* blue-ish for selected range */
}


@media (max-width: 520px) {
  #range_selector { height: 200px; }
}

/* Small form utilities for auth pages */
.center-panel {
  max-width: 420px;
  margin: 24px auto;
  padding: 16px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}
.form-actions {
  margin-top: 12px;
}
.flashes { list-style: none; padding: 0; margin: 8px 0; }
.flashes .flash { padding: 8px 10px; border-radius: 6px; margin-bottom: 6px; font-size: 14px; }
.flashes .flash.error { background: #ffecec; color: #8a1f11; border: 1px solid #f5c6c2; }
.flashes .flash.success { background: #e9f7ec; color: #0b6c2a; border: 1px solid #cfe9d3; }
.muted-link { margin-left: 12px; color: #666; text-decoration: none; font-size: 14px; }
.muted-link:hover { text-decoration: underline; }

/* Stack form fields (label + input) for auth pages */
.center-panel form label {
  display: block;
  margin-top: 12px;
  font-weight: 600;
}
.center-panel form input[type="text"],
.center-panel form input[type="password"],
.center-panel form input[type="email"],
.center-panel form input[type="number"] {
  display: block;
  width: 100%;
  box-sizing: border-box;
  margin-top: 6px;
  padding: 8px 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

/* ClefScore evolution sparkline container */
.clef-evolution-canvas {
  width: 100%;
  max-width: 800px;
  margin-top: 8px;
}

/* make the chart container horizontally scrollable and positioned for tooltip */
.chart-scrollable {
  overflow-x: auto;
  position: relative;
  padding-bottom: 6px;
}

/* tooltip that follows mouse */
.chart-tooltip {
  position: absolute;
  z-index: 40;
  pointer-events: none;
  background: #fff;
  border: 1px solid rgba(0,0,0,0.08);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 13px;
  color: #111;
  min-width: 120px;
}