/* ── Reset & tokens ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:           #0d0d1a;
  --surface:      #16162a;
  --surface2:     #1e1e38;
  --border:       #2a2a4a;
  --accent:       #7c3aed;
  --accent2:      #4f46e5;
  --accent-glow:  rgba(124, 58, 237, 0.35);
  --accent-light: #a78bfa;
  --text:         #f0f0ff;
  --muted:        #8888aa;
  --win:          #10b981;
  --loss:         #ef4444;
  --tie:          #f59e0b;
  --r:            14px;
  --r-sm:         8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  display: flex;
  justify-content: center;
}

/* ── Screens ──────────────────────────────────────────────────────────────── */
.screen {
  display: none;
  width: 100%;
  max-width: 460px;
  min-height: 100dvh;
  padding: 48px 16px 48px;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 0;
}
.screen.active { display: flex; }

/* ── Card ─────────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 28px 24px 32px;
  width: 100%;
}

/* ── Typography ───────────────────────────────────────────────────────────── */
h1 {
  font-size: 2rem;
  font-weight: 800;
  text-align: center;
  background: linear-gradient(135deg, var(--accent-light), #c4b5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}
h2 { font-size: 1.3rem; font-weight: 700; margin-bottom: 6px; }
h3 { font-size: 0.8rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 12px; }
.sub { color: var(--muted); font-size: 0.85rem; margin-bottom: 20px; }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn-primary, .btn-secondary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 13px 20px;
  border: none;
  border-radius: var(--r-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s, transform .15s, border-color .15s, color .15s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
}
.btn-primary:hover  { opacity: .88; transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); opacity: 1; }

.btn-secondary {
  background: var(--surface2);
  color: var(--muted);
  border: 1px solid var(--border);
}
.btn-secondary:hover { color: var(--text); border-color: var(--accent-light); }

.btn-ghost {
  background: none;
  color: var(--muted);
  border: 1px solid transparent;
  width: auto;
  padding: 8px 12px;
}
.btn-ghost:hover { color: var(--text); }

.btn-row { display: flex; gap: 10px; margin-top: 22px; }
.btn-col { display: flex; flex-direction: column; gap: 10px; margin-top: 22px; }

/* ── Profile screen ───────────────────────────────────────────────────────── */
.wordmark { font-size: 1.3rem; text-align: center; margin-bottom: 2px; }

.profile-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 4px; }

.profile-row { display: flex; align-items: center; gap: 6px; }
.profile-row .profile-btn { flex: 1; }
.profile-delete-btn {
  flex-shrink: 0;
  background: none;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  color: var(--loss);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  padding: 10px 11px;
  transition: border-color .15s, background .15s;
}
.profile-delete-btn:hover { border-color: var(--loss); background: rgba(239,68,68,.1); }

.profile-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text);
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  text-align: left;
}
.profile-btn:hover { border-color: var(--accent); background: rgba(124,58,237,.1); }
.profile-icon { font-size: 1.1rem; }
.profile-name { flex: 1; }
.profile-badge {
  font-size: 0.7rem;
  color: var(--accent-light);
  background: rgba(124,58,237,.18);
  padding: 2px 8px;
  border-radius: 99px;
}
.empty-msg { color: var(--muted); font-size: 0.88rem; text-align: center; padding: 8px 0; }

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 0.8rem;
  margin: 18px 0;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.input-row { display: flex; gap: 8px; }
input[type="text"] {
  flex: 1;
  padding: 12px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color .15s;
}
input[type="text"]:focus { border-color: var(--accent); }
input[type="text"]::placeholder { color: var(--muted); }
input[type="text"] + .btn-primary { width: auto; white-space: nowrap; }

/* ── Settings screen ──────────────────────────────────────────────────────── */
.setting-block { margin-bottom: 22px; }

.radio-group  { display: flex; flex-wrap: wrap; gap: 8px; }
.radio-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 99px;
  cursor: pointer;
  font-size: 0.88rem;
  transition: all .15s;
  user-select: none;
}
.radio-pill:has(input:checked) {
  background: rgba(124,58,237,.2);
  border-color: var(--accent);
  color: var(--accent-light);
}
.radio-pill input { display: none; }

.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--muted);
}
.toggle-row:hover { color: var(--text); }
input[type="checkbox"] { accent-color: var(--accent); width: 15px; height: 15px; cursor: pointer; }

/* ── In-game stats button ────────────────────────────────────────────────── */
#btn-game-stats {
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  padding: 0;
  font-size: 1rem;
  flex-shrink: 0;
}
#btn-game-stats:hover { background: rgba(255,255,255,0.20); color: var(--text); }

/* ── Game screen ──────────────────────────────────────────────────────────── */
#screen-game { gap: 0; }

.game-header {
  display: flex;
  align-items: center;
  width: 100%;
  margin-bottom: 20px;
}
.game-header .btn-ghost:last-child { margin-left: auto; }
.match-label {
  flex: 1;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* Score board */
.scoreboard {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  width: 100%;
  margin-bottom: 28px;
}
.score-block { text-align: center; }
.score-name {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 4px;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.score-num {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.score-sep { font-size: 0.9rem; color: var(--muted); }

/* Result area */
.result-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  min-height: 130px;
  margin-bottom: 24px;
  border-radius: var(--r);
  border: 1px solid transparent;
  transition: border-color .3s, background .3s;
  padding: 16px 12px 12px;
  background: var(--surface);
}
.result-area.idle   { border-color: var(--border); background: var(--surface); }
.result-area.win    { border-color: var(--win);  background: rgba(16,185,129,.07); }
.result-area.loss   { border-color: var(--loss); background: rgba(239,68,68,.07);  }
.result-area.tie    { border-color: var(--tie);  background: rgba(245,158,11,.07); }

.result-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 8px;
}
.choice-display { text-align: center; flex: 1; }
.choice-emoji   {
  font-size: 3.2rem;
  line-height: 1;
  display: block;
  margin-bottom: 4px;
}
.choice-sub { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }

.result-outcome {
  font-size: 1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .04em;
  min-width: 64px;
  text-align: center;
}
.result-outcome.win  { color: var(--win); }
.result-outcome.loss { color: var(--loss); }
.result-outcome.tie  { color: var(--tie); }

.idle-prompt {
  font-size: 0.9rem;
  color: var(--muted);
  margin: auto;
}

.debug-info {
  margin-top: 10px;
  font-size: 0.72rem;
  color: var(--muted);
  text-align: center;
  padding: 6px 10px;
  background: var(--surface2);
  border-radius: var(--r-sm);
  width: 100%;
  line-height: 1.4;
}

/* Choice buttons */
.choices-row {
  display: flex;
  gap: 10px;
  width: 100%;
  margin-bottom: 18px;
}
.choice-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 18px 8px 14px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r);
  color: var(--text);
  font-size: 2.4rem;
  cursor: pointer;
  transition: border-color .15s, background .15s, transform .12s, box-shadow .15s;
  line-height: 1;
}
.choice-btn span {
  font-size: 0.72rem;
  color: var(--muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.choice-btn:hover:not(:disabled) {
  border-color: var(--accent);
  background: rgba(124,58,237,.12);
  transform: translateY(-4px);
  box-shadow: 0 6px 20px var(--accent-glow);
}
.choice-btn:active:not(:disabled) { transform: translateY(-1px); }
.choice-btn:disabled { opacity: .45; cursor: not-allowed; }

/* Round history pips */
.round-history {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  width: 100%;
  min-height: 28px;
}
.round-pip {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0;
}
.round-pip.win  { background: rgba(16,185,129,.2);  color: var(--win);  border: 1px solid var(--win);  }
.round-pip.loss { background: rgba(239,68,68,.2);   color: var(--loss); border: 1px solid var(--loss); }
.round-pip.tie  { background: rgba(245,158,11,.18); color: var(--tie);  border: 1px solid var(--tie);  }

/* ── End Game button ──────────────────────────────────────────────────────── */
.end-game-btn { color: var(--loss); font-size: 0.8rem; font-weight: 600; }
.end-game-btn:hover { color: #fca5a5; }

/* ── Username modal ───────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  z-index: 200;
  padding: max(80px, 18vh) 16px 16px;
}
.modal-card {
  position: relative;
  max-width: 400px;
  width: 100%;
  animation: pop-in 0.18s ease;
}
.modal-close-btn {
  position: absolute;
  top: -12px;
  right: -12px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  padding: 0;
  font-size: 0.78rem;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .15s, color .15s;
}
.modal-close-btn:hover { background: rgba(255,255,255,0.22); color: var(--text); }
.username-error {
  color: var(--loss);
  font-size: 0.82rem;
  margin-top: 8px;
  min-height: 1.2em;
}

/* ── Guest path block ────────────────────────────────────────────────────── */
.play-path {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 18px 16px 20px;
  margin-top: 16px;
}
.path-note {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 4px;
  line-height: 1.4;
}

/* ── Google sign-in button ───────────────────────────────────────────────── */
.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 13px 20px;
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.btn-google:hover { background: var(--border); border-color: var(--accent); }

/* ── Auth row (match-over) ───────────────────────────────────────────────── */
.auth-row { margin-top: 14px; text-align: center; }
.auth-row .sub { display: block; font-size: 0.8rem; margin-bottom: 4px; color: var(--muted); }

/* ── Auth handle display (profile screen signed-in view) ─────────────────── */
.auth-handle {
  text-align: center;
  font-size: 1.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-light), #c4b5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-top: 2px;
}

/* ── Match-over panel (in-game) ───────────────────────────────────────────── */
.mop-card    { margin-top: 8px; }
.mop-subtitle { text-align: center; color: var(--muted); margin-top: 4px; font-size: 0.9rem; }
.match-over-icon { font-size: 4.5rem; text-align: center; margin-bottom: 8px; }

/* ── Stats screen ─────────────────────────────────────────────────────────── */
#screen-stats { }
.stats-card { max-height: 92dvh; overflow-y: auto; }

.stats-section { margin-bottom: 24px; }

.totals-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat-cell {
  background: var(--surface2);
  border-radius: var(--r-sm);
  padding: 12px 8px 10px;
  text-align: center;
  border: 1px solid var(--border);
}
.stat-emoji { font-size: 1.6rem; margin-bottom: 4px; }
.stat-name  { font-size: 0.7rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 2px; }
.stat-count { font-size: 1.5rem; font-weight: 800; margin-bottom: 6px; }
.stat-bar-wrap { background: var(--border); border-radius: 99px; height: 4px; overflow: hidden; margin-bottom: 4px; }
.stat-bar  { background: linear-gradient(90deg, var(--accent), var(--accent-light)); height: 100%; border-radius: 99px; transition: width .4s ease; }
.stat-pct  { font-size: 0.7rem; color: var(--muted); }

.stats-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
.stats-table th, .stats-table td {
  padding: 8px 10px;
  text-align: center;
  border: 1px solid var(--border);
}
.stats-table thead th { color: var(--muted); font-weight: 500; background: var(--surface2); }
.stats-table tbody th { font-weight: 600; color: var(--muted); background: var(--surface2); text-align: left; }

/* ── Leaderboard ──────────────────────────────────────────────────────────── */
#screen-leaderboard { max-width: 640px; }
.lb-tabs  { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.lb-tab {
  padding: 6px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 99px;
  color: var(--muted);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all .15s;
}
.lb-tab:hover  { color: var(--text); border-color: var(--accent-light); }
.lb-tab.active { background: rgba(124,58,237,.2); border-color: var(--accent); color: var(--accent-light); }
.lb-table    { font-size: 0.78rem; }
.lb-loading  { text-align: center; color: var(--muted); padding: 24px; }
.lb-rank-h   { width: 28px; }
.lb-rank     { font-size: 0.9rem; }
.lb-name-h   { text-align: left !important; min-width: 60px; }
.lb-name     { text-align: left !important; font-weight: 600; }
.lb-sort-th  { cursor: pointer; user-select: none; white-space: nowrap; }
.lb-sort-th:hover   { color: var(--text); }
.lb-sort-active     { color: var(--accent-light) !important; }
.lb-move-col { color: var(--muted); font-size: 0.72rem; }

/* ── Animations ───────────────────────────────────────────────────────────── */
@keyframes pop-in {
  0%   { transform: scale(.4); opacity: 0; }
  65%  { transform: scale(1.15); }
  100% { transform: scale(1); opacity: 1; }
}
.pop-in { animation: pop-in .28s ease forwards; }