:root {
  --bg: #0d1117;
  --panel: #161b22;
  --line: #2b3340;
  --text: #c9d1d9;
  --muted: #8b949e;
  --accent: #3da9fc;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  /* 阻止移动端下拉刷新 / 橡皮筋滚动干扰游戏操作 */
  overscroll-behavior: none;
  -webkit-text-size-adjust: 100%;
}

/* ===== 顶部状态栏 ===== */
#topbar {
  height: 52px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 18px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
#topbar .title { font-weight: 700; letter-spacing: 1px; }
#topbar .title .sub { color: var(--muted); font-weight: 400; font-size: 12px; }
#status { flex: 1; color: var(--muted); font-size: 13px; }
#status b { color: var(--text); }
#end-turn {
  background: var(--accent);
  color: #06121f;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-weight: 700;
  cursor: pointer;
}
#end-turn:hover { filter: brightness(1.1); }

/* ===== 主区域 ===== */
#app {
  display: flex;
  height: calc(100% - 52px);
  height: calc(100dvh - 52px);
}

#board-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
  perspective: 1400px;
  cursor: grab;
  user-select: none;
  touch-action: none;            /* 移动端：禁止页面手势，交给我们自己处理拖动/缩放 */
  -webkit-tap-highlight-color: transparent;
  background:
    radial-gradient(circle at 50% 40%, #11202e 0%, #0d1117 70%);
}

/* 等距投影：容器倾斜，内部六角变菱形，文字反向转正 */
/* 绝对定位于父容器正中（translate -50% 居中），绕中心旋转保持视觉居中 */
/* 外层：仅负责平移/缩放（2D 合成层，拖动/缩放时只移动已栅格化的图，不重绘子元素 → 不卡、不黑） */
#map-board {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1156px;          /* 由 renderBoard 按 HEX 动态覆盖，此处仅作默认 */
  height: 713px;
  transform: translate(-50%, -50%);
  transform-origin: center center;
  will-change: transform;
  backface-visibility: hidden;
}
/* 内层：静态等距倾斜（3D 场景只栅格化一次） */
#map-board-3d {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: rotateX(60deg) rotateZ(45deg);
  transform-origin: center center;
  transform-style: preserve-3d;
}

/* 地图缩放控制（右上角） */
#zoom-ctrl {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 6px;
  z-index: 20;
}
#zoom-ctrl button {
  width: 38px;
  height: 38px;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #21303f;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
}
#zoom-ctrl button:hover:not(:disabled) { border-color: var(--accent); }
#zoom-ctrl button:disabled {
  background: #2b2b2b;
  color: #6b7280;
  cursor: not-allowed;
  opacity: 0.6;
}

/* ===== 六角格 ===== */
.hex {
  position: absolute;
  cursor: pointer;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 0;
  transition: filter 0.12s;
}
.hex:hover { filter: brightness(1.25); }

/* 文字内容反向旋转，使其在等距视角下保持正向可读 */
.hex .content {
  transform: rotateZ(-45deg) rotateX(-60deg);
  text-align: center;
  pointer-events: none;
  user-select: none;
  position: relative;
  z-index: 2;
}
.hex .terrain-label {
  font-size: 18px;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
  text-shadow: 0 1px 2px rgba(0,0,0,0.6);
}
.hex .elev {
  font-size: 9px;
  color: rgba(255,255,255,0.55);
}

/* 机甲方块（立体化：内部斜面 + 底部侧面 + 地面投影，避免被 hex 的 clip-path 裁掉外阴影） */
.hex .mech {
  position: relative;
  margin-top: 2px;
  width: 96%;
  padding: 5px 4px 7px;
  border-radius: 6px 6px 4px 4px;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  color: #06121f;
  border: 1px solid rgba(0,0,0,0.45);
  border-top-color: rgba(255,255,255,0.80);
  border-bottom-color: rgba(0,0,0,0.70);
  background-color: var(--mc, #3da9fc);
  background-image:
    linear-gradient(to bottom, rgba(255,255,255,0.55), rgba(255,255,255,0) 50%),
    linear-gradient(to top, rgba(0,0,0,0.42), rgba(0,0,0,0) 45%);
  box-shadow:
    inset 0 2px 1px rgba(255,255,255,0.55),
    inset 0 -4px 4px rgba(0,0,0,0.35);
  text-shadow: 0 1px 0 rgba(255,255,255,0.25);
}
/* 立体侧面厚度：越高越显“高” */
.hex .mech::before {
  content: "";
  position: absolute;
  left: 0; right: 0;
  top: 100%;
  height: 9px;
  background: rgba(0,0,0,0.55);
  border-radius: 0 0 6px 6px;
}
/* 地面投影 + 与机体间的缝隙 => 悬浮感（缝隙越大越“高”） */
.hex .mech::after {
  content: "";
  position: absolute;
  left: 14%; right: 14%;
  top: 100%;
  margin-top: 7px;
  height: 9px;
  background: rgba(0,0,0,0.45);
  border-radius: 50%;
  filter: blur(3px);
}
.hex .mech .hpbar {
  height: 3px;
  margin-top: 2px;
  background: rgba(0,0,0,0.35);
  border-radius: 2px;
  overflow: hidden;
}
.hex .mech .hpbar > i {
  display: block;
  height: 100%;
  background: #7CFC00;
}

/* 高亮状态：实心内描边六边形环 + 半透明填色（内阴影环不被 clip-path 裁掉，最醒目） */
.hex::before {
  content: "";
  position: absolute;
  inset: 0;
  clip-path: inherit;
  opacity: 0;
  transition: opacity 0.12s;
  pointer-events: none;
  z-index: 1;
}
.hex.reachable { box-shadow: inset 0 0 0 5px #2cf59a; }
.hex.reachable::before { opacity: 1; background: rgba(44, 245, 154, 0.28); }
.hex.attackable { box-shadow: inset 0 0 0 5px #ff4d6d; }
.hex.attackable::before { opacity: 1; background: rgba(255, 77, 109, 0.30); }
.hex.selected { box-shadow: inset 0 0 0 6px #ffd166; }
.hex.selected::before { opacity: 1; background: rgba(255, 209, 102, 0.28); }
/* 本回合已行动完的机体：选中后用银色高亮 */
.hex.selected-done { box-shadow: inset 0 0 0 6px #cfd6e0; }
.hex.selected-done::before { opacity: 1; background: rgba(207, 214, 224, 0.26); }
.hex.dead { opacity: 0.25; }
/* 被选中的我方机体额外描白边，进一步突出 */
.hex.selected .mech { box-shadow: 0 0 0 2px #ffffff, 0 0 12px #ffd166, inset 0 2px 1px rgba(255,255,255,0.55), inset 0 -4px 4px rgba(0,0,0,0.35); }
.hex.selected-done .mech { box-shadow: 0 0 0 2px #cfd6e0, 0 0 12px #aeb6c2, inset 0 2px 1px rgba(255,255,255,0.55), inset 0 -4px 4px rgba(0,0,0,0.35); }

/* ===== 侧栏 ===== */
#sidebar {
  width: 260px;
  background: var(--panel);
  border-left: 1px solid var(--line);
  padding: 12px;
  display: flex;
  flex-direction: column;
}

/* 图例可折叠：点击标题栏收起，腾出战斗日志空间（小屏尤其有用） */
.collapsible-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  font-weight: 700;
  color: var(--text);
  padding: 2px 0 6px;
}
.collapsible-head .caret {
  color: var(--muted);
  transition: transform 0.15s ease;
  font-size: 12px;
}
.collapsible.collapsed .caret { transform: rotate(-90deg); }
.collapsible.collapsed #legend { display: none; }

#legend { font-size: 12px; }
#legend .row { display: flex; align-items: center; gap: 6px; margin: 3px 0; }
#legend .dot { width: 12px; height: 12px; border-radius: 3px; }
#legend .swatch { width: 14px; height: 14px; border-radius: 2px; display:inline-block; }
#log-title { margin-top: 12px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--line); padding-top: 8px; }
#log { flex: 1; overflow: auto; font-size: 12px; line-height: 1.5; margin-top: 4px; }
#log .line { margin: 2px 0; color: var(--text); }
#log .sys { color: var(--muted); }
#log .hit { color: #ffd166; }
#log .kill { color: #ef4565; font-weight: 700; }

/* ===== 悬浮窗 ===== */
#popup {
  position: fixed;
  z-index: 50;
  width: 230px;
  background: rgba(13,17,23,0.96);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 12px;
  user-select: none;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
}
#popup h3 { margin: 0 0 6px; font-size: 14px; }
#popup .seg { border-top: 1px dashed var(--line); margin-top: 8px; padding-top: 8px; }
#popup .kv { display: flex; justify-content: space-between; margin: 2px 0; color: var(--muted); }
#popup .kv b { color: var(--text); }
#popup .close { position: absolute; top: 4px; right: 8px; cursor: pointer; color: var(--muted); }
#popup .tag { display:inline-block; padding:1px 6px; border-radius:4px; font-size:11px; margin-right:4px; }

/* 机甲头像（组军卡片与悬浮窗共用基础样式） */
.mech-avatar { width: 64px; height: 64px; border-radius: 8px; object-fit: contain; background: #000; display: block; }
/* 悬浮窗内：头像仅与标题同行，武器/属性整块左对齐 + 按玩家配色描边 */
#popup .mech-pop-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
#popup .mech-pop-head h3 { margin: 0; }
#popup .weapon-label { margin-top: 6px; color: var(--muted); }
#popup .mech-avatar.pop { width: 48px; height: 48px; border: 2px solid var(--line); }

/* 攻击选武器区（合并在信息窗顶部，样式与面板统一） */
#popup .atk-choose {
  border-radius: 8px;
  padding: 8px;
  margin-bottom: 8px;
  background: rgba(255,255,255,0.03);
}
#popup .atk-title { font-size: 13px; margin-bottom: 6px; color: var(--text); }
#popup .atk-w {
  display: block;
  width: 100%;
  margin: 4px 0;
  text-align: left;
  background: #21303f;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 12px;
  cursor: pointer;
}
#popup .atk-w:hover { border-color: var(--accent); }

/* ===== 遮罩 / 面板 ===== */
.overlay {
  position: fixed; inset: 0;
  background: rgba(5,8,12,0.82);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px 28px;
  max-width: 460px;
  text-align: center;
}
.panel.wide { max-width: 760px; text-align: left; }
.panel h1 { margin: 0 0 6px; letter-spacing: 1px; }
.panel .desc { color: var(--muted); margin: 0 0 14px; }
.panel .hint { color: var(--muted); font-size: 12px; margin-top: 14px; }
.btn-row { display: flex; gap: 10px; justify-content: center; margin-top: 12px; flex-wrap: wrap; }
button {
  background: #21303f; color: var(--text);
  border: 1px solid var(--line);
  padding: 8px 16px; border-radius: 6px; cursor: pointer; font-size: 14px;
}
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: 0.4; cursor: not-allowed; }

/* 组军卡片 */
#build-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 8px; max-height: 60vh; overflow: auto; }
.mech-card {
  border: 1px solid var(--line); border-radius: 8px; padding: 10px;
  background: #11161d;
}
.mech-card h4 { margin: 0 0 4px; font-size: 14px; }
.mech-card .stat { font-size: 11px; color: var(--muted); margin: 1px 0; }
.mech-card .weps { margin-top: 6px; }
.mech-card label { display: block; font-size: 12px; margin: 2px 0; cursor: pointer; }
.mech-card .add { margin-top: 8px; width: 100%; }
.mech-card.owned { border-color: var(--accent); }
.mech-card .mech-head { display: flex; align-items: center; gap: 10px; margin-bottom: 4px; }
.mech-card .mech-head h4 { margin: 0; }
.count-badge { float: right; background: var(--accent); color:#06121f; border-radius: 10px; padding: 0 7px; font-size: 11px; font-weight: 700; }

.hidden { display: none !important; }

/* =========================================================
 * 响应式适配：平板 / 手机
 *  - 窄屏（≤820px）：主区改为上下布局，地图在上、图例/日志在下
 *  - 超窄屏（≤520px）：放大触摸目标、单列组军、悬浮窗自适应宽
 *  - 安全区（刘海/底部条）适配
 * ========================================================= */
@media (max-width: 820px) {
  #app { flex-direction: column; }
  #board-wrap { order: 1; flex: 1 1 auto; min-height: 0; }
  #sidebar {
    order: 2;
    width: 100%;
    max-height: 34vh;
    border-left: none;
    border-top: 1px solid var(--line);
  }
  #topbar { gap: 8px; padding: 0 12px; }
  #topbar .title .sub { display: none; }
  #status { font-size: 12px; }
  #log { font-size: 11px; }
}

@media (max-width: 520px) {
  #topbar { height: 48px; padding: 0 10px; }
  #app { height: calc(100vh - 48px); height: calc(100dvh - 48px); }
  #topbar .title { font-size: 14px; }
  #end-turn { padding: 8px 12px; font-size: 13px; }
  #sidebar { max-height: 30vh; padding: 10px; }
  #zoom-ctrl button { width: 46px; height: 46px; font-size: 26px; }
  #popup { width: min(250px, 92vw); font-size: 13px; }
  #build-list { grid-template-columns: 1fr; }
  .panel { padding: 18px 16px; max-width: 94vw; }
  .panel.wide { max-width: 94vw; }
  button { padding: 10px 16px; font-size: 15px; }   /* 更大触摸目标 */
}

/* 安全区（刘海屏 / 底部手势条） */
@supports (padding: env(safe-area-inset-top)) {
  #topbar { padding-top: env(safe-area-inset-top); }
  #sidebar { padding-bottom: calc(10px + env(safe-area-inset-bottom)); }
}