:root {
  --bg: #050505;
  --panel: rgba(19, 19, 19, .9);
  --line: rgba(255,255,255,.16);
  --text: #f7f7f1;
  --muted: #a7a7a0;
  --accent: #dfff5f;
  --green: #55d879;
  --yellow: #e8bc45;
  --dark: #101010;
}

* { box-sizing: border-box; }

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 16% 12%, rgba(223,255,95,.16), transparent 28rem),
    radial-gradient(circle at 82% 40%, rgba(223,255,95,.08), transparent 26rem),
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px),
    var(--bg);
  background-size: auto, auto, 72px 72px, 72px 72px, auto;
}

button, input, select {
  font: inherit;
}

.app {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 60px;
}

.hero {
  min-height: 300px;
  display: grid;
  place-items: center;
  text-align: center;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 950;
}

.brand-mark {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: radial-gradient(circle at 65% 50%, var(--bg) 0 35%, transparent 36%), var(--accent);
  box-shadow: 0 0 20px rgba(223,255,95,.55);
}

h1, h2, h3, p { margin: 0; }

h1 {
  font-size: clamp(72px, 14vw, 160px);
  line-height: .78;
  letter-spacing: 0;
}

h2 {
  font-size: clamp(36px, 6vw, 68px);
  line-height: .9;
}

h3 {
  font-size: 22px;
}

.lede {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 750;
}

.panel, .mini-panel {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(255,255,255,.075), rgba(255,255,255,.02));
  box-shadow: 0 30px 80px rgba(0,0,0,.35);
}

.panel {
  padding: clamp(20px, 4vw, 34px);
}

.mini-panel {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.kicker, label span {
  color: var(--accent);
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.gate, .game, .lobby-view, .duel-view {
  display: grid;
  gap: 18px;
}

.gate-grid, .boards, .lobby-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.boards {
  align-items: start;
}

.boards.single-board {
  grid-template-columns: minmax(280px, 560px);
  justify-content: center;
}

label {
  display: grid;
  gap: 8px;
}

input, select {
  width: 100%;
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,.07);
  color: var(--text);
  padding: 0 16px;
  font-weight: 850;
}

.button {
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 20px;
  font-weight: 950;
  cursor: pointer;
}

.button-light {
  border-color: transparent;
  background: var(--accent);
  color: #090909;
  box-shadow: 0 18px 42px rgba(223,255,95,.22);
}

.button-dark {
  background: rgba(255,255,255,.075);
  color: var(--text);
}

.button:disabled {
  opacity: .45;
  cursor: not-allowed;
}

.status {
  color: var(--accent);
  font-weight: 850;
}

.lobby-panel, .section-title, .arena-top, .board-head, .player-row, .player-meta, .checkout, .duel-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.lobby-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.host-controls, .duelist-selectors {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

#code-label {
  color: var(--accent);
  letter-spacing: .1em;
}

.players {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.player-row {
  min-height: 58px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,.055);
  padding: 10px 12px;
}

.self-name {
  color: var(--accent);
}

.score-pill, .pill, .turn-pill {
  border: 1px solid color-mix(in srgb, var(--accent), transparent 45%);
  border-radius: 999px;
  color: var(--accent);
  padding: 7px 10px;
  font-size: 12px;
  font-weight: 950;
  text-transform: uppercase;
}

.setup-panel {
  display: grid;
  gap: 18px;
  align-content: start;
}

.duelist-selectors {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.arena {
  display: grid;
  gap: 24px;
  min-height: 68vh;
}

.duel-bar {
  position: sticky;
  top: 14px;
  z-index: 3;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(10,10,10,.86);
  backdrop-filter: blur(18px);
  padding: 12px 14px 12px 20px;
  box-shadow: 0 24px 60px rgba(0,0,0,.34);
}

.duel-bar strong {
  color: var(--accent);
  letter-spacing: .12em;
  font-size: 28px;
}

.duel-status {
  color: var(--muted);
  font-weight: 950;
  text-align: center;
  text-transform: uppercase;
}

.host-word-peek {
  display: grid;
  gap: 3px;
  min-width: 150px;
  border: 1px solid color-mix(in srgb, var(--accent), transparent 62%);
  border-radius: 999px;
  background: rgba(223,255,95,.045);
  color: var(--text);
  padding: 8px 18px;
  text-align: center;
  cursor: pointer;
}

.host-word-peek span {
  color: var(--accent);
  font-size: 10px;
  font-weight: 950;
  text-transform: uppercase;
}

.host-word-peek strong {
  color: var(--accent);
  font-size: 18px;
  letter-spacing: .14em;
  filter: blur(3px);
  transition: filter .18s ease, text-shadow .18s ease;
}

.host-word-peek:hover strong,
.host-word-peek:focus-visible strong,
.host-word-peek.revealed strong {
  filter: blur(1px);
  text-shadow: 0 0 18px rgba(223,255,95,.45);
}

.host-word-peek.revealed strong {
  filter: none;
}

.board-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(0,0,0,.28);
  padding: 18px;
}

.self-board {
  border-color: color-mix(in srgb, var(--accent), transparent 35%);
  box-shadow: 0 0 44px rgba(223,255,95,.08);
}

.board-head span {
  color: var(--muted);
  font-weight: 900;
  text-transform: uppercase;
  font-size: 12px;
}

.word-grid {
  display: grid;
  gap: 8px;
  margin-top: 16px;
}

.word-row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.tile {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border: 2px solid rgba(255,255,255,.18);
  border-radius: 12px;
  background: rgba(255,255,255,.05);
  font-size: clamp(24px, 5vw, 42px);
  font-weight: 950;
  text-transform: uppercase;
}

.active-row .tile:not(:empty) {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(223,255,95,.12);
}

.tile.correct {
  background: var(--green);
  border-color: var(--green);
  color: #061008;
}

.tile.present {
  background: var(--yellow);
  border-color: var(--yellow);
  color: #120c02;
}

.tile.absent {
  background: #343434;
  border-color: #343434;
  color: #d5d5d0;
}

.guess-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
}

.guess-form input {
  text-align: center;
  letter-spacing: .28em;
  font-size: 28px;
}

.round-result {
  border: 1px solid color-mix(in srgb, var(--accent), transparent 35%);
  border-radius: 24px;
  background: radial-gradient(circle at 50% 0%, rgba(223,255,95,.18), transparent 18rem), rgba(255,255,255,.05);
  padding: 26px;
  text-align: center;
}

.round-result strong {
  color: var(--accent);
}

.result-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.empty-board {
  grid-column: 1 / -1;
  border: 1px dashed var(--line);
  border-radius: 24px;
  color: var(--muted);
  padding: 38px;
  text-align: center;
  font-weight: 850;
}

@media (max-width: 760px) {
  .gate-grid, .boards, .duelist-selectors, .guess-form, .lobby-grid {
    grid-template-columns: 1fr;
  }

  .lobby-panel, .section-title, .arena-top, .player-row, .duel-bar {
    align-items: stretch;
    flex-direction: column;
  }

  .lobby-actions {
    justify-content: stretch;
  }

  .lobby-actions .button,
  .host-controls,
  .host-controls .button {
    width: 100%;
  }
}