/* codex: 2026-09-14 编写滑冰棋现代冰霜拟物风格与响应式交互样式表 */
:root {
  --bg-main: #0b1528;
  --bg-gradient: radial-gradient(circle at 50% 30%, #152b4d 0%, #0a1324 75%, #050a14 100%);
  --panel-bg: rgba(18, 35, 62, 0.72);
  --panel-border: rgba(148, 197, 255, 0.22);
  --accent-cyan: #38bdf8;
  --accent-gold: #fbbf24;
  --color-red: #f43f5e;
  --color-blue: #0284c7;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

body {
  font-family: var(--font-family);
  background: var(--bg-gradient);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
}

/* 顶部导航与标题 */
header {
  width: 100%;
  max-width: 1200px;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--panel-border);
  backdrop-filter: blur(10px);
}

.title-area h1 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 1px;
  background: linear-gradient(135deg, #e0f2fe 0%, #38bdf8 50%, #93c5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 8px;
}

.title-area p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

.toolbar-quick {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 工具栏控制面板 */
.controls-bar {
  width: 100%;
  max-width: 1200px;
  padding: 12px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--panel-bg);
  border-bottom: 1px solid var(--panel-border);
  backdrop-filter: blur(8px);
}

.control-group {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.control-group label {
  color: var(--text-muted);
  font-weight: 500;
}

select, button {
  font-family: inherit;
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--panel-border);
  background: rgba(30, 58, 102, 0.6);
  color: var(--text-main);
  cursor: pointer;
  outline: none;
  transition: all 0.2s ease;
}

select:hover, button:hover:not(:disabled) {
  background: rgba(56, 189, 248, 0.25);
  border-color: var(--accent-cyan);
}

select option {
  background: #0f1d36;
  color: #f1f5f9;
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  border-color: #38bdf8;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.4);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.5);
}

/* 状态提示横幅 */
.status-container {
  width: 100%;
  max-width: 1200px;
  padding: 12px 24px 0;
  display: flex;
  justify-content: center;
}

.status-card {
  width: 100%;
  max-width: 680px;
  background: rgba(15, 29, 54, 0.85);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 12px 20px;
  text-align: center;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
}

.status-card h2 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.status-card p {
  font-size: 13px;
  color: #bfdbfe;
}

.text-red { color: var(--color-red); }
.text-blue { color: var(--accent-cyan); }

/* 主对局视窗 */
main {
  width: 100%;
  max-width: 1200px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  position: relative;
}

.game-container {
  width: 100%;
  display: flex;
  gap: 20px;
  justify-content: center;
  align-items: stretch;
}

.board-wrapper {
  flex: 1;
  max-width: 750px;
  height: 560px;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

#board-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.5));
}

.log-panel {
  width: 300px;
  background: rgba(15, 29, 54, 0.85);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(8px);
}

.log-header {
  padding: 10px 16px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--panel-border);
  font-weight: 600;
  color: var(--accent-cyan);
  border-radius: 12px 12px 0 0;
}

.log-content {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.log-item {
  font-size: 13px;
  color: #e2e8f0;
  border-bottom: 1px dashed rgba(255,255,255,0.1);
  padding-bottom: 4px;
}

/* SVG 元素样式 */
.hex-tile polygon {
  fill: #142a4a;
  stroke: #2b5585;
  stroke-width: 1.5;
  transition: all 0.25s ease;
  cursor: default;
}

.hex-tile-inner {
  fill: #19345c;
  stroke: rgba(147, 197, 253, 0.15);
  stroke-width: 1;
  pointer-events: none;
}

.hex-tile:hover polygon {
  fill: #1b3d6c;
  stroke: #4d89c9;
}

/* 处于可移除状态的底座高亮 */
.tile-removable polygon {
  stroke: var(--accent-gold);
  stroke-width: 2.5;
  cursor: pointer;
  animation: pulseGold 1.6s infinite ease-in-out;
}

.tile-removable:hover polygon {
  fill: #3b2a1a;
  stroke: #fde047;
}

/* 正在被取下悬浮的底座 */
.tile-selected-lift polygon {
  fill: #0c4a6e;
  stroke: var(--accent-cyan);
  stroke-width: 3;
  filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.7));
  transform-origin: center;
  transform-box: fill-box;
  transform: scale(1.06);
}

/* 新底座放置候选点 */
.placement-target-marker polygon {
  fill: rgba(14, 116, 144, 0.2);
  stroke: var(--accent-cyan);
  stroke-width: 2;
  stroke-dasharray: 4 3;
  cursor: pointer;
  transition: all 0.2s;
  animation: pulseCyan 1.5s infinite ease-in-out;
}

.placement-target-marker:hover polygon {
  fill: rgba(14, 116, 144, 0.6);
  stroke-width: 2.5;
  stroke: #7dd3fc;
}

.placement-plus {
  fill: var(--accent-cyan);
  font-size: 18px;
  font-weight: bold;
  text-anchor: middle;
  pointer-events: none;
}

/* 滑冰冰刀轨迹 */
.slide-trail-line {
  stroke: var(--accent-cyan);
  stroke-width: 2.5;
  stroke-dasharray: 5 4;
  opacity: 0.8;
  animation: dashAnimation 1s linear infinite;
  pointer-events: none;
}

/* 滑冰落点指示器 */
.slide-target-marker circle {
  fill: rgba(56, 189, 248, 0.35);
  stroke: #7dd3fc;
  stroke-width: 2;
  cursor: pointer;
  transition: all 0.2s ease;
  transform-origin: center;
  transform-box: fill-box;
  animation: pulseScale 1.4s infinite ease-in-out;
}

.slide-target-marker:hover circle {
  fill: rgba(56, 189, 248, 0.75);
  stroke-width: 3;
}

/* 棋子 */
.chess-piece {
  cursor: pointer;
  transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.piece-shadow {
  fill: rgba(0, 0, 0, 0.45);
  filter: blur(2px);
}

.piece-p1 .piece-body {
  fill: url(#grad-piece-red);
  stroke: #fda4af;
  stroke-width: 1.5;
}

.piece-p2 .piece-body {
  fill: url(#grad-piece-blue);
  stroke: #bae6fd;
  stroke-width: 1.5;
}

.piece-glint {
  fill: rgba(255, 255, 255, 0.75);
  transition: transform 0.2s;
}

.piece-body {
  transition: transform 0.2s, filter 0.2s;
}

.piece-shadow {
  fill: rgba(0, 0, 0, 0.45);
  filter: blur(2px);
  transition: transform 0.2s, opacity 0.2s;
  transform-origin: center;
  transform-box: fill-box;
}

.piece-movable:hover .piece-body,
.piece-movable:hover .piece-glint {
  transform: translateY(-3px);
}

.piece-movable:hover .piece-body {
  filter: drop-shadow(0 4px 10px rgba(56, 189, 248, 0.6));
}

.piece-movable:hover .piece-shadow {
  transform: scale(0.85);
  opacity: 0.7;
}

.piece-selected .piece-body {
  stroke: #ffffff;
  stroke-width: 3;
  filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.9));
}

.hex-coord-label {
  fill: rgba(148, 163, 184, 0.6);
  font-size: 11px;
  text-anchor: middle;
  pointer-events: none;
}

/* 胜利铁三角连线光效 */
.victory-triangle-fx {
  fill: rgba(251, 191, 36, 0.2);
  stroke: #fbbf24;
  stroke-width: 4;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 16px rgba(251, 191, 36, 0.9));
  animation: pulseGold 1.5s infinite alternate;
}

/* 弹窗样式 */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(4, 9, 20, 0.75);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 20px;
}

.modal-content {
  background: #0f2038;
  border: 1px solid var(--accent-cyan);
  border-radius: 16px;
  max-width: 600px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 24px;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.6);
}

.modal-content h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: #e0f2fe;
}

.modal-content p, .modal-content li {
  font-size: 14px;
  line-height: 1.7;
  color: #cbd5e1;
  margin-bottom: 8px;
}

.rules-rule-box {
  background: rgba(15, 36, 66, 0.7);
  border-left: 4px solid var(--accent-cyan);
  padding: 12px;
  margin: 12px 0;
  border-radius: 0 8px 8px 0;
}

.rules-rule-box h4 {
  color: #7dd3fc;
  margin-bottom: 4px;
  font-size: 14px;
}

/* 动画帧定义 */
@keyframes pulseGold {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

@keyframes pulseCyan {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.85; }
}

@keyframes pulseScale {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

@keyframes dashAnimation {
  to { stroke-dashoffset: -18; }
}

/* 移动端适配 */
@media (max-width: 768px) {
  header { padding: 12px 16px; }
  .controls-bar { padding: 10px 16px; gap: 8px; }
  .game-container { flex-direction: column; }
  .board-wrapper { height: 400px; }
  .log-panel { width: 100%; height: 200px; }
}

/* 2D 扁平模式 (2D Mode) */
.theme-2d .hex-tile polygon {
  fill: #1e3a5f;
  stroke: #4b5563;
  stroke-width: 1;
}
.theme-2d .hex-tile-inner {
  display: none;
}
.theme-2d .piece-shadow, .theme-2d .piece-glint {
  display: none;
}
.theme-2d .piece-p1 .piece-body {
  fill: #f43f5e;
  stroke: #fff;
  stroke-width: 1.5;
}
.theme-2d .piece-p2 .piece-body {
  fill: #38bdf8;
  stroke: #fff;
  stroke-width: 1.5;
}