*, *::before, *::after { box-sizing: border-box; }

:root {
  --bg: #f1f1f4;
  --card: #ffffff;
  --ink: #0a0a0a;
  --muted: #6b6b73;
  --line: #e6e6ea;
  --correct: #16a34a;
  --wrong: #dc2626;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(0,0,0,.06);
}

html, body { margin: 0; padding: 0; }

body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Inter, sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  font-size: 16px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

/* ---------- header ---------- */

header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  padding: 0.85rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.stats {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.1;
}

.stat-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.stat-value {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 1rem;
  margin-top: 2px;
  transition: transform .25s cubic-bezier(.2,.8,.2,1);
}

.stat-value.bump { transform: scale(1.18); }

.reset-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.75rem;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
}
.reset-btn:hover { color: var(--ink); border-color: #c8c8d0; }

@media (max-width: 480px) {
  .stats { gap: 0.85rem; }
  .reset-btn { display: none; }
}

/* ---------- main + card ---------- */

main {
  max-width: 520px;
  margin: 0 auto;
  padding: 1.5rem 1rem 4rem;
}

.card {
  background: var(--card);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

.photo-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #ececef;
  overflow: hidden;
}

.photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity .35s ease;
}
.photo.active { opacity: 1; }

.reveal {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1rem 1.25rem 1.1rem;
  background: linear-gradient(to top, rgba(0,0,0,.78) 30%, rgba(0,0,0,0));
  color: #fff;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .3s ease, transform .3s ease;
  pointer-events: none;
}

.reveal.show {
  opacity: 1;
  transform: translateY(0);
}

.name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.actual {
  margin-top: 0.15rem;
  font-size: 0.95rem;
  opacity: 0.9;
}

/* ---------- buttons ---------- */

.buttons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
  padding: 0.75rem;
}

.buttons .party-btn:first-child { grid-column: span 2; }

.party-btn {
  position: relative;
  padding: 0.95rem 0.75rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  background: var(--c);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  letter-spacing: 0.01em;
  transition: transform .08s, opacity .2s, filter .2s;
  text-shadow: 0 1px 0 rgba(0,0,0,.08);
}

.party-btn:hover:not(:disabled) { filter: brightness(1.05); }
.party-btn:active:not(:disabled) { transform: scale(0.97); }

.party-btn:disabled { cursor: default; opacity: 0.25; filter: grayscale(0.3); }

.party-btn.correct {
  opacity: 1;
  filter: none;
  animation: pulse 0.5s ease;
}

.party-btn.correct::after,
.party-btn.wrong::after {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  border: 2px solid var(--card);
}

.party-btn.correct::after { content: "✓"; background: var(--correct); }
.party-btn.wrong { opacity: 1; filter: none; }
.party-btn.wrong::after { content: "✕"; background: var(--wrong); }

@keyframes pulse {
  0% { transform: scale(1); }
  40% { transform: scale(1.04); }
  100% { transform: scale(1); }
}

@media (min-width: 600px) {
  .buttons { grid-template-columns: repeat(5, 1fr); }
  .buttons .party-btn:first-child { grid-column: auto; }
  .party-btn { font-size: 0.9rem; padding: 0.85rem 0.5rem; }
}

/* ---------- countdown bar ---------- */

.countdown {
  height: 3px;
  background: var(--ink);
  width: 100%;
  transform-origin: left;
  transform: scaleX(0);
  opacity: 0;
}

.countdown.run {
  opacity: 1;
  animation: countdown var(--ms, 1800ms) linear forwards;
}

@keyframes countdown {
  from { transform: scaleX(1); }
  to   { transform: scaleX(0); }
}

/* ---------- status + history ---------- */

.status {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 1.25rem 0 0;
  text-align: center;
}

.history {
  margin-top: 2.5rem;
}

.history h2 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 0 0 0.75rem;
  padding: 0 0.25rem;
}

.history-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.history-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: var(--card);
  padding: 0.6rem 0.85rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  animation: slideIn .25s ease;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.history-thumb {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
  background: #ececef;
}

.history-body {
  flex: 1;
  min-width: 0;
}

.history-name {
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-meta {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.history-mark {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  flex-shrink: 0;
}

.history-item.correct .history-mark { background: var(--correct); }
.history-item.wrong   .history-mark { background: var(--wrong); }

.history-item.correct .history-mark::before { content: "✓"; }
.history-item.wrong   .history-mark::before { content: "✕"; }