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

body {
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  background: #0d1117;
  color: #f0f3f6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: #6cb6ff;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #161b22;
  border-bottom: 1px solid #30363d;
  padding: 14px 24px;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header h1,
.leaderboard-wrap h1 {
  font-size: 18px;
  font-weight: 600;
}

.nav {
  font-size: 14px;
  margin-top: 4px;
}

.nav a {
  margin-right: 12px;
}
.progress {
  font-size: 15px;
  color: #b1bac4;
}
.meta {
  font-size: 15px;
  color: #b1bac4;
}
.meta span {
  color: #f0f3f6;
  font-weight: 600;
}

.controls {
  display: flex;
  justify-content: center;
  gap: 32px;
  align-items: center;
  margin-top: 10px;
}

.disclaimer {
  font-size: 12px;
  color: #6e7681;
  text-align: center;
  margin-top: 6px;
}

/* Lyrics columns */
.columns {
  flex: 1;
  display: flex;
  gap: 1px;
  background: #30363d;
  overflow: hidden;
}

.column {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  background: #0d1117;
}

.column-label {
  font-size: 15px;
  font-weight: 700;
  color: #b1bac4;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.lyrics {
  white-space: pre-wrap;
  font-size: 16px;
  line-height: 1.7;
  color: #e6edf3;
}

kbd {
  display: inline-block;
  padding: 4px 10px;
  font-size: 15px;
  font-family: inherit;
  background: #21262d;
  border: 1px solid #3d444d;
  border-radius: 4px;
  color: #f0f3f6;
}

.hint {
  font-size: 15px;
  color: #b1bac4;
}

/* Flash overlays — one per column */
.flash-left,
.flash-right {
  position: fixed;
  top: 0;
  bottom: 0;
  width: 50%;
  pointer-events: none;
  background: rgba(63, 185, 80, 0.15);
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 100;
}

.flash-left {
  left: 0;
}
.flash-right {
  right: 0;
}
.flash-left.show,
.flash-right.show {
  opacity: 1;
}

/* Done state */
.done {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 40px;
  text-align: center;
}

.done h2 {
  font-size: 28px;
}
.done p {
  color: #b1bac4;
  font-size: 16px;
}

.done button {
  margin-top: 8px;
  padding: 8px 20px;
  font-family: inherit;
  font-size: 15px;
  background: #21262d;
  color: #b1bac4;
  border: 1px solid #3d444d;
  border-radius: 6px;
  cursor: pointer;
}

.done button:hover {
  background: #30363d;
  color: #f0f3f6;
}

/* Leaderboard */
.leaderboard-wrap {
  max-width: 700px;
  margin: 40px auto;
  padding: 0 24px;
}

.leaderboard-wrap h1 {
  font-size: 24px;
  margin-bottom: 8px;
}

.total {
  font-size: 16px;
  color: #b1bac4;
  margin-bottom: 24px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid #21262d;
}

th {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #b1bac4;
}

td {
  font-size: 16px;
}

tr:hover td {
  background: #161b22;
}

.elo {
  font-weight: 700;
  color: #6cb6ff;
}
.rank {
  color: #b1bac4;
}
.record {
  color: #b1bac4;
  font-size: 15px;
}

.section-title {
  font-size: 18px;
  margin-top: 32px;
  margin-bottom: 12px;
  color: #b1bac4;
}

.session-block {
  margin-bottom: 24px;
}

.session-label {
  font-size: 14px;
  color: #6e7681;
  margin-bottom: 6px;
}

/* Loading */
.loading {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #b1bac4;
  font-size: 16px;
}