:root {
  --bg: #0e1116;
  --surface: #161c25;
  --surface-2: #1e2632;
  --line: #2a3441;
  --text: #e8edf3;
  --muted: #8b98a9;
  --faint: #5b6879;

  --green: #4f9d5d;
  --green-soft: #2f5c39;
  --amber: #c9a227;
  --red: #b3453f;
  --accent: #6ee7a8;

  --radius: 12px;
  --font: 'Segoe UI', system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, 'Cascadia Mono', Consolas, 'SF Mono', Menlo, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* ---------- top bar ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  flex: none;
}

.brand h1 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

/* Trailing letter-spacing pushes the wordmark left of centre; pull it back. */
.brand h1 { margin-right: -0.14em; }

.brand h1 span { color: var(--accent); }

.icon-btn {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  color: var(--muted);
  font: inherit;
  font-size: 0.95rem;
  cursor: pointer;
}

.icon-btn:hover { color: var(--text); border-color: var(--faint); }

/* ---------- layout ---------- */

.main {
  flex: 1 1 auto;
  overflow-y: auto;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 12px 14px 8px;
}

.modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  width: max-content;
  max-width: 100%;
  margin: 0 auto 12px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
}

.mode-btn {
  border: 0;
  border-radius: 999px;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 7px 22px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.mode-btn:hover:not(.is-on) { color: var(--text); }
.mode-btn:active:not(.is-on) { transform: translateY(1px); }

.mode-btn.is-on {
  background: var(--accent);
  color: var(--bg);
}

.meta {
  margin: 0 0 12px;
  text-align: center;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.board {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ---------- player card ---------- */

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 12px 14px;
  transition: border-color 0.15s, background 0.15s, opacity 0.15s;
}

.card.is-active { border-color: var(--faint); background: var(--surface-2); }
.card.is-solved { border-left: 3px solid var(--green); }
.card.is-failed { border-left: 3px solid var(--red); }
.card.is-focusable { cursor: pointer; }
.card.is-focusable:hover { border-color: var(--faint); }

.card-top {
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-info {
  flex: 1;
  min-width: 0;
}

.card-avatar {
  flex: none;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface-2) center 60% / 62% no-repeat
    url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%20fill='%235b6879'%3E%3Ccircle%20cx='12'%20cy='8.5'%20r='4'/%3E%3Cpath%20d='M4%2020.5c0-4.4%203.6-7%208-7s8%202.6%208%207z'/%3E%3C/svg%3E");
}

.card-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.card-name {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.card-index {
  color: var(--faint);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  flex: none;
}

.card-sub {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.card-sub .dot { color: var(--faint); }

.badge {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* ---------- guess row ---------- */

.guesses {
  margin-top: 10px;
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
}

.tile {
  width: 46px;
  height: 46px;
  border: 2px solid var(--line);
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  background: var(--bg);
  position: relative;
}

.tile.is-typing { border-color: var(--faint); }
.tile.is-miss { background: var(--surface-2); color: var(--muted); border-color: var(--surface-2); }
.tile.is-hit { background: var(--green); border-color: var(--green); color: #fff; }
.tile.is-answer { background: var(--red); border-color: var(--red); color: #fff; }

.tile .arrow {
  position: absolute;
  right: -4px;
  bottom: -5px;
  font-size: 0.7rem;
  line-height: 1;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 3px;
  color: var(--amber);
}

.hint {
  color: var(--muted);
  font-size: 0.78rem;
  margin-left: 2px;
}

.hint strong { color: var(--text); }

/* ---------- keypad ---------- */

.keypad {
  flex: none;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 8px 14px calc(14px + env(safe-area-inset-bottom));
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
}

.key {
  height: 48px;
  border: 0;
  border-radius: 8px;
  background: var(--surface-2);
  color: var(--text);
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.1s;
}

.key:hover:not(:disabled) { background: #27313f; }
.key:active:not(:disabled) { transform: translateY(1px); }
.key:disabled { opacity: 0.35; cursor: default; }

.key.key-wide { grid-column: span 2; font-size: 0.85rem; letter-spacing: 0.08em; }
.key.key-enter { background: var(--green-soft); color: #dff5e4; }
.key.key-enter:hover:not(:disabled) { background: var(--green); }

/* ---------- toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  top: 64px;
  transform: translateX(-50%) translateY(-8px);
  background: var(--text);
  color: var(--bg);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s, transform 0.18s;
  z-index: 30;
  max-width: 88vw;
  text-align: center;
}

.toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- modal ---------- */

.modal-scrim {
  position: fixed;
  inset: 0;
  background: rgba(6, 9, 13, 0.72);
  display: grid;
  place-items: center;
  padding: 16px;
  z-index: 40;
}

.modal-scrim[hidden] { display: none; }

.modal {
  position: relative;
  width: 100%;
  max-width: 400px;
  max-height: 84vh;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  border: 0;
  background: none;
  color: var(--muted);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}

.modal-close:hover { color: var(--text); }

.modal h2 {
  margin: 0 0 14px;
  font-size: 1.05rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.modal h3 {
  margin: 18px 0 8px;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.modal p, .modal li { font-size: 0.88rem; line-height: 1.55; color: var(--text); }
.modal ul { padding-left: 18px; margin: 8px 0; }
.modal .note { color: var(--muted); font-size: 0.8rem; }

.example {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 8px 0;
  font-size: 0.84rem;
  color: var(--muted);
}

.example .tile { width: 38px; height: 38px; font-size: 0.98rem; }

/* stats */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 6px;
}

.stat {
  background: var(--surface-2);
  border-radius: 10px;
  padding: 10px 4px;
  text-align: center;
}

.stat b {
  display: block;
  font-size: 1.35rem;
  font-variant-numeric: tabular-nums;
}

.stat span {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.dist { display: flex; flex-direction: column; gap: 4px; }

.dist-row {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 8px;
  align-items: center;
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.dist-bar {
  background: var(--surface-2);
  border-radius: 4px;
  padding: 2px 6px;
  text-align: right;
  min-width: 26px;
  color: var(--muted);
}

.dist-bar.is-today { background: var(--green); color: #fff; }

.recap { margin: 4px 0 0; padding: 0; list-style: none; }

.recap li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.85rem;
}

.recap li:last-child { border-bottom: 0; }
.recap .ovr { font-family: var(--mono); font-weight: 700; }
.recap .ok { color: var(--accent); }
.recap .no { color: var(--red); }

.btn {
  display: block;
  width: 100%;
  margin-top: 16px;
  padding: 12px;
  border: 0;
  border-radius: 10px;
  background: var(--green);
  color: #fff;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
}

.btn:hover { filter: brightness(1.08); }

.btn.btn-ghost {
  background: none;
  border: 1px solid var(--line);
  color: var(--muted);
  margin-top: 8px;
}

.btn.btn-ghost:hover { filter: none; color: var(--text); border-color: var(--faint); }

.countdown {
  margin-top: 12px;
  text-align: center;
  color: var(--muted);
  font-size: 0.78rem;
}

.countdown b { font-family: var(--mono); color: var(--text); }

.linkish {
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  color: var(--accent);
  text-decoration: underline;
  cursor: pointer;
}

.credits {
  max-height: 42vh;
  overflow-y: auto;
  margin: 10px 0;
  padding-left: 18px;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--muted);
}

.credits li { margin: 2px 0; }
.credits a { color: var(--muted); text-decoration: underline; }

@media (max-width: 360px) {
  .tile { width: 40px; height: 40px; }
  .key { height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}