:root {
  --ink: var(--body-font-color);
  --ink-muted: var(--gray-500);
  --ink-faint: var(--gray-200);
  --paper: var(--body-background);
  --red: var(--color-accent-caution);
  --red-dark: var(--color-accent-danger);
  --accent: var(--color-accent-tip);
}

/* ── 共用：计分板 ── */
.scoreboard {
  width: 100%;
  max-width: 700px;
  border: 1px solid var(--ink-faint);
  border-radius: 12px;
  overflow: hidden;
}

.week-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px dashed var(--ink-faint);
}
.week-row:last-child { border-bottom: none; }
.week-row.current-week { background: rgba(44, 74, 62, 0.04); }

.week-label {
  font-size: 0.75rem;
  color: var(--ink-muted);
  white-space: nowrap;
  min-width: 140px;
  user-select: none;
}

.week-ticks {
  flex: 1;
  display: flex;
  align-items: center;
  min-height: 40px;
  flex-wrap: wrap;
}

.week-count {
  font-size: 0.8rem;
  color: var(--ink-faint);
  min-width: 24px;
  text-align: right;
  user-select: none;
}

.tick-svg { display: block; }

/* ── 共用：统计 ── */
.stats-row {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--ink-faint);
}

.stat {
  flex: 1;
  padding: 1.5rem 3rem;
  border-right: 1px solid var(--ink-faint);
}
.stat:last-child { border-right: none; }

.stat-value {
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1;
  color: var(--accent);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--ink-muted);
  margin-top: 0.4rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.stat-breakthrough .stat-value { color: var(--red); }

/* ── 共用：图例 ── */
.legend {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem 3rem 2rem;
  border-top: 1px solid var(--ink-faint);
  margin-top: 0.5rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.78rem;
  color: var(--ink-muted);
}

.legend-svg { display: block; }

.page-note {
  padding: 1rem 3rem 2rem;
  font-size: 0.75rem;
  color: var(--ink-muted);
}

/* ── 前台：页头 ── */
.page-header {
  border-bottom: 1px solid var(--ink-faint);
  padding: 2.5rem 3rem 2rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}

.page-header h1 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.page-header .subtitle {
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-top: 0.4rem;
  letter-spacing: 0.05em;
}

/* ── 后台：编辑模式 ── */
.week-row.editable-row {
  cursor: pointer;
  transition: background 0.15s;
}
.week-row.editable-row:hover { background: rgba(0,0,0,0.02); }
.week-row.editing {
  background: rgba(192, 57, 43, 0.04);
  outline: 1px dashed rgba(192, 57, 43, 0.3);
  outline-offset: -4px;
  cursor: default;
}

.tick-svg.editable { cursor: pointer; }
.tick-svg.editable:hover { opacity: 0.55; }

.edit-hint {
  font-size: 0.7rem;
  color: var(--red);
  opacity: 0;
  white-space: nowrap;
  transition: opacity 0.2s;
  min-width: 80px;
}
.week-row.editing .edit-hint { opacity: 1; }

/* ── 后台：大红按钮 ── */
.btn-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.btn-hint {
  font-size: 0.8rem;
  color: var(--ink-muted);
  text-align: center;
  line-height: 1.6;
}
.btn-hint span {
  display: block;
  font-size: 0.72rem;
  color: var(--ink-muted);
  margin-top: 0.3rem;
}

.btn-3d-wrap { position: relative; width: 160px; height: 170px; }

.btn-base {
  position: absolute;
  top: 20px; left: 8px;
  width: 144px; height: 144px;
  border-radius: 50%;
  background: #7a0b0b;
}

.btn-top {
  position: absolute;
  top: 8px; left: 8px;
  width: 144px; height: 144px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ff6b6b, #c0392b 60%);
  cursor: pointer;
  border: none;
  outline: none;
  user-select: none;
  -webkit-user-select: none;
  transform: translateY(-10px);
  transition: transform 0.08s linear, filter 0.08s;
}
.btn-top::before {
  content: '';
  position: absolute;
  top: 18px; left: 28px;
  width: 52px; height: 22px;
  border-radius: 50%;
  background: rgba(255,255,255,0.18);
  transform: rotate(-20deg);
  pointer-events: none;
}
.btn-top.pressed,
.btn-top.holding {
  transform: translateY(-2px);
  filter: brightness(0.88);
}
.btn-top.breakthrough-mode {
  background: radial-gradient(circle at 35% 30%, #ffb347, #e67e00 60%);
}

.today-badge {
  font-size: 0.72rem;
  color: var(--ink-muted);
  background: var(--paper);
  border: 1px dashed var(--ink-faint);
  border-radius: 99px;
  padding: 0.3rem 0.9rem;
}

.feedback {
  font-size: 0.85rem;
  color: var(--accent);
  min-height: 1.4em;
  text-align: center;
  opacity: 0;
  transition: opacity 0.2s;
}
.feedback.show { opacity: 1; }
.feedback.breakthrough { color: var(--red); }