.statistics-heading { margin-bottom: 26px; }
.statistics-heading h1 { margin: 0 0 10px; font-size: clamp(28px, 3vw, 42px); font-weight: 500; letter-spacing: -.035em; }
.statistics-heading p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.6; }
.statistics-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 30px; }
.statistics-summary > div { display: flex; flex-direction: column; gap: 8px; padding: 20px; border: 1px solid var(--line); border-radius: 18px; }
.statistics-summary strong { font-size: 32px; font-weight: 500; letter-spacing: -.04em; }
.statistics-summary span { color: var(--muted); font-size: 12px; }
.statistics-section-title { margin: 0 0 16px; font-size: 18px; font-weight: 600; letter-spacing: -.02em; }
.statistics-history-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 12px; margin-top: 32px; }
.statistics-legend { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-bottom: 16px; color: var(--muted); font-size: 11px; }
[data-result="red"] { --result-ink: #aa302b; --result-fill: #f9e5e1; }
[data-result="yellow"] { --result-ink: #8b6100; --result-fill: #fbefd0; }
[data-result="green"] { --result-ink: #217144; --result-fill: #dff0e5; }
[data-result="current"] { --result-ink: var(--accent); --result-fill: #fbe7df; }
.statistics-legend span { display: inline-flex; align-items: center; gap: 6px; }
.statistics-legend span::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--result-ink); }
.sprint-history { display: grid; gap: 16px; }
.sprint-card { padding: 24px; border: 1px solid var(--line); border-left: 4px solid var(--result-ink); border-radius: 20px; background: var(--panel); }
.sprint-card-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.sprint-period { margin: 0 0 9px; color: var(--muted); font-size: 12px; }
.sprint-card h3 { margin: 0; font-size: clamp(20px, 2.5vw, 28px); font-weight: 500; letter-spacing: -.03em; line-height: 1.2; overflow-wrap: anywhere; }
.sprint-result { flex-shrink: 0; padding: 7px 11px; border-radius: 999px; color: var(--result-ink); background: var(--result-fill); font-size: 11px; font-weight: 650; }
.sprint-completion { display: flex; align-items: baseline; flex-wrap: wrap; gap: 12px; margin: 22px 0 10px; }
.sprint-completion strong { color: var(--result-ink); font-size: 30px; font-weight: 500; letter-spacing: -.04em; }
.sprint-completion span, .sprint-time { color: var(--muted); font-size: 12px; }
.sprint-progress { overflow: hidden; height: 6px; border-radius: 999px; background: var(--result-fill); }
.sprint-progress > span { display: block; height: 100%; border-radius: inherit; background: var(--result-ink); }
.sprint-time { margin: 10px 0 0; }
.sprint-materials { margin-top: 18px; font-size: 12px; }
.sprint-materials summary { width: fit-content; cursor: pointer; color: var(--muted); }
.sprint-materials summary:focus-visible { outline: 3px solid rgba(255, 90, 54, .36); outline-offset: 3px; }
.sprint-materials ul { padding: 0; margin: 12px 0 0; list-style: none; }
.sprint-materials li { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding: 10px 0; border-top: 1px solid var(--line); }
.sprint-materials a { color: var(--ink); line-height: 1.5; text-decoration-color: var(--line); overflow-wrap: anywhere; }
.sprint-materials a:hover { color: var(--accent); }
.sprint-materials li span { flex-shrink: 0; color: var(--muted); font-size: 11px; }
.statistics-empty { margin: 0; padding: 24px 0; color: var(--muted); font-size: 14px; line-height: 1.6; }
@media (max-width: 650px) {
  .tabs { flex-wrap: wrap; border-radius: 20px; }
  .tab { flex: 1 1 calc(50% - 2px); }
  .statistics-heading { margin-top: 8px; }
  .statistics-summary { gap: 8px; }
  .statistics-summary > div { padding: 14px 10px; border-radius: 14px; }
  .statistics-summary strong { font-size: 26px; }
  .statistics-summary span { font-size: 10px; line-height: 1.5; }
  .sprint-card { padding: 18px; }
  .sprint-card-heading { flex-direction: column; gap: 12px; }
  .sprint-materials li { flex-direction: column; gap: 5px; }
}