:root {
  --bg: #10131f;
  --surface: #171c34;
  --surface-strong: #1e2645;
  --accent: #ff5c7a;
  --accent-2: #6bd9ff;
  --text: #edf0f8;
  --muted: #9ba4c0;
  --border: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
}

html, body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: radial-gradient(circle at top, #2d3360 0%, #10131f 45%, #06080f 100%);
  color: var(--text);
}

button {
  font: inherit;
}

.app-shell {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 18px 64px;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

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

.brand strong {
  font-size: 1.35rem;
}

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

.main-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nav-link,
.home-button,
.primary-button,
.secondary-button,
.settings-item,
.settings-menu-close {
  appearance: none;
  border: none;
  border-radius: 14px;
  padding: 12px 18px;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.nav-link,
.settings-item {
  background: rgba(255,255,255,0.06);
  color: var(--text);
}

.nav-link.active,
.home-button:hover,
.primary-button:hover,
.secondary-button:hover,
.settings-item:hover,
.settings-toggle:hover,
.settings-menu-close:hover {
  transform: translateY(-1px);
}

.nav-link.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #11131f;
}

.home-button,
.primary-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #11131f;
}

.secondary-button {
  background: rgba(255,255,255,0.08);
  color: var(--text);
}

.content {
  display: grid;
  gap: 22px;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

.hidden {
  display: none !important;
}

.hero-card,
.game-card,
.info-card,
.board-panel,
.page-header {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 24px;
}

.page-header h2,
.hero-card h1 {
  margin: 0 0 12px;
}

.page-header p,
.hero-card p,
.info-card p,
.message,
.small-text {
  margin: 0;
  color: var(--muted);
}

.home-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.daifugo-info {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}

.daifugo-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.daifugo-hand {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(68px, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.daifugo-card {
  padding: 12px 10px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.12);
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  color: var(--text);
  text-align: center;
  cursor: grab;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.daifugo-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.3);
}

.daifugo-card.selected {
  background: linear-gradient(135deg, rgba(255,92,122,0.22), rgba(107,217,255,0.18));
  border-color: rgba(255,92,122,0.35);
}

.daifugo-card.dragging {
  opacity: 0.45;
}

.daifugo-card.selected {
  background: linear-gradient(135deg, rgba(255,92,122,0.22), rgba(107,217,255,0.18));
  border-color: rgba(255,92,122,0.35);
}

.daifugo-card span {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
}

.daifugo-card small {
  color: var(--muted);
}

.daifugo-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

#daifugoBoard {
  min-height: 120px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

@keyframes dealCard {
  0% {
    opacity: 1;
    transform: translate(0, 0) scale(1);
  }
  100% {
    opacity: 1;
    transform: translate(var(--deal-x), var(--deal-y)) scale(0.8);
  }
}

.daifugo-dealing-card {
  position: absolute;
  width: 60px;
  height: 80px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(255,92,122,0.3), rgba(107,217,255,0.3));
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  pointer-events: none;
}

.daifugo-dealing-animation {
  animation: dealCard 0.6s ease-out forwards;
}

.status-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.status-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 18px;
  text-align: center;
}

.status-card span,
.game-status span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.status-card strong,
.game-status strong {
  display: block;
  font-size: 2rem;
}

.board-panel {
  position: relative;
  margin-top: 18px;
}

.board {
  position: relative;
  width: min(100%, 100%);
  min-height: 350px;
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(20, 24, 45, 0.95), rgba(15, 18, 33, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.message {
  margin-top: 16px;
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.target {
  position: absolute;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, #ffffff, transparent 54%),
              radial-gradient(circle at 50% 50%, var(--accent), transparent 55%);
  box-shadow: 0 0 0 8px rgba(255, 92, 122, 0.12), 0 14px 28px rgba(0, 0, 0, 0.25);
  cursor: pointer;
}

.target::before,
.target::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.18);
}

.game-panel {
  display: grid;
  gap: 18px;
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
}

.game-status {
  display: inline-grid;
  gap: 4px;
  text-align: center;
  margin: 0 auto;
}

.memory-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.memory-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.memory-card {
  aspect-ratio: 1 / 1;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255,255,255,0.1);
  display: grid;
  place-items: center;
  font-size: 2rem;
  color: transparent;
  cursor: pointer;
  user-select: none;
  transition: transform 160ms ease, background 160ms ease;
}

.memory-card.flipped,
.memory-card.matched {
  color: #ffffff;
  background: linear-gradient(135deg, rgba(107, 217, 255, 0.16), rgba(255, 92, 122, 0.18));
}

.memory-card:hover {
  transform: translateY(-2px);
}

.daifugo-info {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.daifugo-controls {
  display: flex;
  gap: 12px;
  margin: 16px 0;
}

.daifugo-hand {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.daifugo-summary {
  display: grid;
  gap: 12px;
  margin-top: 16px;
  padding: 14px;
  border-radius: 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}

.daifugo-summary-group {
  display: grid;
  gap: 6px;
}

.daifugo-summary-group strong {
  font-size: 0.95rem;
  color: var(--text);
}

.daifugo-summary-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.daifugo-summary-chip {
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  font-size: 0.9rem;
}

.daifugo-card {
  min-width: 72px;
  padding: 12px 10px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(255,255,255,0.12), rgba(255,255,255,0.04));
  color: var(--text);
  display: grid;
  gap: 4px;
  cursor: pointer;
}

.daifugo-card.selected {
  outline: 2px solid var(--accent-2);
}

.daifugo-card.dragging {
  opacity: 0.6;
}

.playercount-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 24px;
  display: grid;
  gap: 24px;
}

.playercount-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.playercount-option {
  padding: 24px;
  border-radius: 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  cursor: pointer;
  display: grid;
  gap: 8px;
  align-items: center;
  justify-items: center;
  transition: all 160ms ease;
}

.playercount-option:hover {
  transform: translateY(-2px);
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
}

.playercount-option:active {
  transform: translateY(0);
}

.playercount-number {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--text);
}

.playercount-label {
  font-size: 1rem;
  color: var(--muted);
}

.playercount-info {
  padding: 16px;
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}

.playercount-info p {
  margin: 0;
  color: var(--muted);
}

.multiplayer-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 26px;
  padding: 24px;
  display: grid;
  gap: 18px;
}

.mode-toggle {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.mode-option {
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.05);
  color: var(--text);
  border-radius: 999px;
  padding: 10px 16px;
  cursor: pointer;
}

.mode-option.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #11131f;
  border-color: transparent;
}

.mode-panel {
  display: grid;
  gap: 14px;
}

.multiplayer-actions {
  display: grid;
  gap: 12px;
}

.join-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.join-row input {
  flex: 1 1 220px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  color: var(--text);
}

.room-pill {
  display: inline-block;
  width: fit-content;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  color: var(--text);
}

.room-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.room-player {
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
}

.info-card {
  padding: 22px;
}

.small-text {
  color: var(--muted);
  font-size: 0.95rem;
  margin-top: 6px;
}

.settings-panel {
  position: fixed;
  left: 18px;
  bottom: 18px;
  z-index: 20;
}

.settings-toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #11131f;
  font-size: 1.4rem;
  box-shadow: 0 14px 24px rgba(0, 0, 0, 0.28);
}

.settings-menu {
  width: 220px;
  margin-top: 12px;
  padding: 18px;
  border-radius: 22px;
  background: rgba(15, 19, 32, 0.98);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}

.settings-menu.hidden {
  display: none;
}

.settings-menu-header {
  font-weight: 700;
  margin-bottom: 14px;
}

.settings-item,
.settings-menu-close {
  width: 100%;
}

.settings-item {
  margin-top: 10px;
  background: rgba(255,255,255,0.06);
  color: var(--text);
  text-align: left;
}

.settings-menu-close {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.08);
  color: var(--text);
  position: absolute;
  top: 12px;
  right: 12px;
}

.settings-menu {
  position: relative;
}

@media (max-width: 760px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .home-actions,
  .status-panel,
  .memory-grid {
    grid-template-columns: 1fr;
  }

  .memory-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .memory-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}