:root {
  --ink: #30251d;
  --paper-light: #fffaf0;
  --red: #9b2c25;
  --red-dark: #6f1e1a;
  --gold: #c7953d;
  --shadow: rgba(55, 36, 20, 0.2);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  background:
    radial-gradient(circle at 20% 20%, rgba(155, 44, 37, 0.08), transparent 28%),
    repeating-linear-gradient(0deg, rgba(80, 55, 32, 0.025) 0 1px, transparent 1px 4px), #e9d2a3;
}

button {
  font: inherit;
}

.btn {
  padding: 10px 22px;
  border: 0;
  border-radius: 7px;
  cursor: pointer;
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 12px var(--shadow);
}

.mode-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.mode-btn {
  padding: 12px 14px;
  color: white;
  font-size: 16px;
}

.pvp-btn {
  background: #49372a;
}

.pve-btn {
  background: var(--red);
}

.online-btn {
  background: #315f7d;
}

.primary-btn {
  color: white;
  background: var(--red);
  font-size: 18px;
}
.secondary-btn {
  color: var(--red-dark);
  border: 1px solid var(--red);
  background: var(--paper-light);
}

.overlay {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(47, 31, 21, 0.76);
}

.overlay-content {
  width: min(520px, 100%);
  padding: 44px;
  text-align: center;
  border: 4px double var(--gold);
  border-radius: 12px;
  background: var(--paper-light);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

.overlay-content h1 {
  margin: 0;
  color: var(--red-dark);
  font-family: STKaiti, KaiTi, serif;
  font-size: clamp(42px, 10vw, 64px);
  letter-spacing: 0.18em;
  text-indent: 0.18em;
}

.subtitle {
  margin: 5px 0 24px;
  color: var(--gold);
  font-size: 20px;
  letter-spacing: 0.35em;
  text-indent: 0.35em;
}

.intro {
  margin: 0 auto 28px;
  line-height: 1.8;
}

#game-area {
  width: min(1380px, 100%);
  margin: 0 auto;
  padding: 20px;
}

.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
  padding: 14px 20px;
  border-bottom: 3px double var(--gold);
  background: rgba(255, 250, 240, 0.78);
}

.game-header h1,
.game-header p {
  margin: 0;
}
.game-header h1 {
  color: var(--red-dark);
  font-family: STKaiti, KaiTi, serif;
  font-size: 34px;
}
.game-header p {
  color: #7d654f;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 18px;
  align-items: start;
}

.players {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.player-panel,
.control-panel,
.side-panel section {
  border: 1px solid rgba(116, 76, 39, 0.28);
  border-radius: 10px;
  background: rgba(255, 250, 240, 0.88);
  box-shadow: 0 3px 10px var(--shadow);
}

.player-panel {
  position: relative;
  padding: 12px;
  transition:
    transform 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease;
}

.player-panel.local-view {
  border: 2px solid var(--red);
}

.player-panel.active-turn {
  z-index: 2;
  border-color: #e0a93f;
  transform: translateY(-3px);
  animation: active-panel-glow 1.5s ease-in-out infinite;
}

.player-panel.active-turn::before {
  position: absolute;
  inset: -5px;
  pointer-events: none;
  content: "";
  border: 2px solid rgba(224, 169, 63, 0.75);
  border-radius: 14px;
  animation: active-halo 1.5s ease-in-out infinite;
}

.player-panel h3 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 0 0 10px;
  color: var(--red-dark);
  font-size: 16px;
}

.activity-badge {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 3px;
  padding: 3px 8px;
  color: #704713;
  border-radius: 999px;
  background: #ffe8a8;
  font-size: 11px;
  font-weight: 400;
}

.activity-badge i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: currentcolor;
  animation: thinking-dot 1.2s ease-in-out infinite;
}

.activity-badge i:nth-child(2) {
  animation-delay: 0.15s;
}

.activity-badge i:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes active-panel-glow {
  0%,
  100% {
    box-shadow:
      0 3px 10px var(--shadow),
      0 0 8px rgba(224, 169, 63, 0.35);
  }
  50% {
    box-shadow:
      0 5px 18px var(--shadow),
      0 0 24px rgba(224, 169, 63, 0.9);
  }
}

@keyframes active-halo {
  0%,
  100% {
    opacity: 0.35;
    transform: scale(0.99);
  }
  50% {
    opacity: 1;
    transform: scale(1.015);
  }
}

@keyframes thinking-dot {
  0%,
  60%,
  100% {
    opacity: 0.35;
    transform: translateY(0);
  }
  30% {
    opacity: 1;
    transform: translateY(-3px);
  }
}

.hand {
  display: grid;
  grid-template-columns: repeat(4, minmax(56px, 1fr));
  gap: 7px;
}

.role-card {
  position: relative;
  overflow: hidden;
  aspect-ratio: 0.7;
  border: 2px solid #765029;
  border-radius: 5px;
  background: #ead5a7;
  box-shadow: 0 2px 5px var(--shadow);
}

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

.role-card > span {
  position: absolute;
  right: 3px;
  bottom: 3px;
  left: 3px;
  padding: 3px;
  color: white;
  text-align: center;
  font-size: 12px;
  border-radius: 3px;
  background: rgba(71, 37, 22, 0.78);
}

.role-card.card-back {
  display: grid;
  place-items: center;
  border-color: #7d241f;
  background:
    linear-gradient(45deg, transparent 45%, rgba(250, 218, 152, 0.2) 45% 55%, transparent 55%),
    linear-gradient(-45deg, transparent 45%, rgba(250, 218, 152, 0.2) 45% 55%, transparent 55%),
    var(--red-dark);
  background-size: 18px 18px;
}

.role-card.card-back span {
  position: static;
  width: 42px;
  padding: 5px;
  color: #f8d78d;
  font-family: KaiTi, serif;
  font-size: 26px;
  border: 2px solid #f8d78d;
  background: var(--red-dark);
}

.control-panel {
  min-height: 180px;
  margin-top: 14px;
  padding: 22px;
  text-align: center;
}
.phase-badge {
  display: inline-block;
  padding: 4px 12px;
  color: white;
  border-radius: 999px;
  background: var(--red);
  font-size: 13px;
}
.control-panel h2 {
  margin: 14px 0 18px;
  font-size: 20px;
}
.action-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 9px;
  min-height: 42px;
}
.action-btn {
  color: var(--ink);
  border: 1px solid var(--gold);
  background: #fff8e8;
}

.result-panel {
  margin: 0 auto 18px;
  padding: 16px;
  color: var(--red-dark);
  border: 2px solid var(--gold);
  border-radius: 8px;
  background: #fff0c9;
  font-size: 19px;
  font-weight: 700;
}

.side-panel {
  display: grid;
  gap: 14px;
}
.side-panel section {
  padding: 16px;
}
.side-panel h2 {
  margin: 0 0 12px;
  color: var(--red-dark);
  font-family: STKaiti, KaiTi, serif;
  font-size: 22px;
}
.round-log {
  height: 270px;
  margin: 0;
  padding-left: 24px;
  overflow-y: auto;
  color: #5e4c3e;
  font-size: 14px;
  line-height: 1.7;
}
.rules ol {
  margin: 0;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.7;
}

@media (prefers-reduced-motion: reduce) {
  .player-panel.active-turn,
  .player-panel.active-turn::before,
  .activity-badge i {
    animation: none;
  }
}
@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .side-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  #game-area {
    padding: 10px;
  }
  .game-header {
    padding: 10px 12px;
  }
  .players,
  .side-panel {
    grid-template-columns: 1fr;
  }
  .hand {
    gap: 5px;
  }
  .role-card > span {
    font-size: 10px;
  }
  .mode-buttons {
    grid-template-columns: 1fr;
  }

  .overlay-content {
    padding: 34px 20px;
  }
}