body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.5;
}

.app {
  position: relative;
  z-index: 3;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--s-4);
  gap: var(--s-5);

  pointer-events: none;
}
.topbar, .game, .footnote, .help-dialog { pointer-events: auto; }

.topbar {
  width: 100%;
  max-width: var(--maxw);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--s-2);
}
.brand { display: flex; align-items: center; gap: var(--s-3); }
.brand-globe { width: 26px; height: 26px; color: var(--accent); flex: none; }
.brand-name {
  font-size: 20px; font-weight: 600; letter-spacing: -0.01em;
}
.topbar-actions { display: flex; align-items: center; gap: var(--s-2); }
.icon-btn, .text-btn {
  color: var(--text-muted);
  padding: var(--s-2) var(--s-3);
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  font-size: 14px;
  transition: color 120ms ease-out, border-color 120ms ease-out, background-color 120ms ease-out;
}
.icon-btn:hover, .text-btn:hover { color: var(--text); border-color: var(--border); }
.text-btn { font-weight: 600; min-width: 44px; }

.game {
  width: 100%;
  max-width: var(--maxw);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
}
.puzzle-meta {
  color: var(--text-muted);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.board { display: flex; flex-direction: column; gap: var(--s-2); }
.guess-row {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto auto 3.4em;
  align-items: center;
  gap: var(--s-3);
  min-height: 52px;
  padding: var(--s-3) var(--s-4);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  overflow: hidden;
}
.guess-row.is-empty {
  background: color-mix(in srgb, var(--surface) 38%, transparent);
  border-style: dashed;
  border-color: var(--border-soft);
  min-height: 52px;
}
.guess-row.is-filled { animation: row-in 160ms ease-out; }
.g-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.g-dist, .g-prox {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  color: var(--text-muted);
}
.g-prox { text-align: right; font-weight: 600; color: var(--text); }
.g-arrow { font-size: 20px; line-height: 1; width: 1.2em; text-align: center; }

.g-meter {
  position: absolute;
  left: 0; bottom: 0;
  height: 3px;
  width: var(--p, 0%);
  background: var(--meter, var(--far));
  transition: width 220ms cubic-bezier(0.16, 1, 0.3, 1);
}
.guess-row.is-far  { --meter: var(--far); }
.guess-row.is-mid  { --meter: var(--mid); }
.guess-row.is-near { --meter: var(--near); }
.guess-row.is-correct {
  border-color: var(--accent);
  background: var(--accent-weak);
}
.guess-row.is-correct .g-arrow, .guess-row.is-correct .g-prox { color: var(--accent-strong); }

.guess-form { display: flex; gap: var(--s-2); }
.combo { position: relative; flex: 1; }
.guess-input {
  width: 100%;
  padding: var(--s-3) var(--s-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  color: var(--text);
  transition: border-color 120ms ease-out;
}
.guess-input::placeholder { color: var(--text-faint); }
.guess-input:focus { border-color: var(--accent); outline: none; }

.suggestions {
  position: absolute;
  left: 0; right: 0; top: calc(100% + var(--s-1));
  z-index: 20;
  max-height: 240px;
  overflow-y: auto;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-pop);
}
.suggestion {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--s-3);
  padding: var(--s-3) var(--s-4);
  cursor: pointer;
}
.suggestion .s-sub { color: var(--text-faint); font-size: 13px; }
.suggestion[aria-selected="true"], .suggestion:hover { background: var(--accent-weak); }

.submit-btn {
  padding: var(--s-3) var(--s-5);
  background: var(--accent);
  color: #06231a;
  font-weight: 600;
  border-radius: var(--r-md);
  transition: background-color 120ms ease-out, opacity 120ms ease-out;
}
.submit-btn:hover { background: var(--accent-strong); }
.submit-btn:disabled { opacity: 0.45; cursor: not-allowed; }

.message { min-height: 1.4em; text-align: center; font-size: 14px; color: var(--text-muted); }
.message.is-error { color: var(--danger); }
.message.is-win { color: var(--accent-strong); font-weight: 600; }

.endgame {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-5);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
}
.endgame-title { font-size: 18px; font-weight: 600; text-align: center; }
.endgame-actions { margin: var(--s-2) 0; }
.next-label { color: var(--text-faint); font-size: 13px; }
.countdown { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: 18px; color: var(--text); }

.footnote {
  width: 100%;
  max-width: var(--maxw);
  text-align: center;
  color: var(--text-faint);
  font-size: 12px;
  padding-bottom: var(--s-2);
}
.footnote .copyright {
  display: block;
  margin-top: var(--s-1);
  font-size: 11px;
  opacity: 0.75;
  letter-spacing: 0.01em;
}

.help-dialog {
  margin: auto;
  width: min(92vw, 420px);
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 0;
  box-shadow: var(--shadow-pop);
}
.help-dialog::backdrop { background: rgba(5, 7, 11, 0.6); }
.help-inner { display: flex; flex-direction: column; gap: var(--s-4); padding: var(--s-5); }
.help-inner h2 { font-size: 18px; font-weight: 600; }
.help-list { display: flex; flex-direction: column; gap: var(--s-3); color: var(--text-muted); font-size: 14px; }
.help-list li { padding-left: var(--s-4); position: relative; }
.help-list li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }

@keyframes row-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

@media (max-width: 480px) {
  .app { padding: var(--s-3); gap: var(--s-4); }
  .brand-name { font-size: 18px; }
}