/* 贪吃蛇工具页样式：仅在 /tools/snake/ 加载。 */
/* v15.2：工具页贪吃蛇小游戏 */
.snake-tool-panel{
  padding:24px;
  overflow:hidden;
}
.snake-head{
  display:flex;
  justify-content:space-between;
  gap:20px;
  align-items:flex-start;
  margin-bottom:18px;
}
.snake-stats{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.snake-stats span{
  border:1px solid var(--border);
  background:rgba(234,246,255,.72);
  border-radius:999px;
  padding:7px 12px;
  font-weight:750;
  color:#27496c;
}
body.dark .snake-stats span{
  background:rgba(19,43,66,.82);
  color:#dbeafe;
}
.snake-stage-wrap{
  position:relative;
  max-width:520px;
  margin:0 auto;
  border-radius:26px;
  padding:14px;
  background:
    radial-gradient(circle at 30% 20%, rgba(255,255,255,.82), transparent 28%),
    linear-gradient(135deg,rgba(234,246,255,.88),rgba(255,245,231,.72));
  border:1px solid var(--border);
  box-shadow:var(--shadow);
}
body.dark .snake-stage-wrap{
  background:linear-gradient(135deg,rgba(19,43,66,.92),rgba(31,35,51,.72));
}
.snake-canvas{
  width:100%;
  height:auto;
  border-radius:18px;
  display:block;
  background:var(--panel);
}
.snake-overlay{
  position:absolute;
  inset:14px;
  border-radius:18px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  text-align:center;
  gap:8px;
  background:rgba(255,253,250,.76);
  backdrop-filter:blur(8px);
  opacity:0;
  pointer-events:none;
  transition:opacity .18s ease;
}
body.dark .snake-overlay{
  background:rgba(15,23,42,.72);
}
.snake-overlay.show{
  opacity:1;
}
.snake-overlay strong{
  font-size:34px;
  color:var(--accent-2);
}
.snake-overlay span{
  color:var(--muted);
}
.snake-mobile-pad{
  display:none;
  grid-template-columns:54px 54px 54px;
  grid-template-areas:
    ". up ."
    "left down right";
  justify-content:center;
  gap:10px;
  margin-top:18px;
}
.snake-mobile-pad button{
  width:54px;
  height:54px;
  border-radius:18px;
  border:1px solid var(--border);
  background:var(--soft-blue);
  color:var(--accent-2);
  font-size:24px;
  font-weight:850;
  cursor:pointer;
}
.snake-mobile-pad button[data-snake-dir="up"]{grid-area:up}
.snake-mobile-pad button[data-snake-dir="left"]{grid-area:left}
.snake-mobile-pad button[data-snake-dir="down"]{grid-area:down}
.snake-mobile-pad button[data-snake-dir="right"]{grid-area:right}
.snake-mobile-pad button:hover{
  transform:translateY(-1px);
}
.snake-mobile-pad button{display:grid;place-items:center}
.snake-mobile-pad svg{width:22px!important;height:22px!important}
@media(max-width:720px){
  .snake-head{
    flex-direction:column;
  }
  .snake-stats{
    justify-content:flex-start;
  }
  .snake-mobile-pad{
    display:grid;
  }
}

/* Touch controls; header actions remain available on small screens. */
@media(max-width:820px){
  .snake-mobile-panel{display:grid!important;grid-template-columns:1fr!important;justify-items:center!important;align-items:center!important;width:100%!important;max-width:430px!important;margin-inline:auto!important;padding:0!important;background:transparent!important;border:0!important;box-shadow:none!important}
  .snake-mobile-pad{display:grid!important;grid-template-columns:repeat(3,76px)!important;grid-template-rows:repeat(3,68px)!important;gap:9px!important;justify-content:center!important;align-items:center!important;width:auto!important;max-width:none!important;margin:0 auto!important;padding:0!important;background:transparent!important;border:0!important;box-shadow:none!important}
  .snake-mobile-pad button,.snake-mobile-pad [data-snake-dir]{display:grid!important;place-items:center!important;width:76px!important;height:68px!important;min-width:76px!important;min-height:68px!important;padding:0!important;margin:0!important;border-radius:22px!important;border:1px solid color-mix(in srgb,var(--accent) 28%,transparent)!important;background:radial-gradient(circle at 32% 24%,rgba(255,255,255,.18),transparent 32%),linear-gradient(145deg,rgba(15,23,42,.72),rgba(30,41,59,.82))!important;color:var(--text)!important;box-shadow:inset 0 1px 0 rgba(255,255,255,.16),0 12px 26px rgba(15,23,42,.18)!important;appearance:none!important;-webkit-appearance:none!important}
  body:not(.dark) .snake-mobile-pad button,body:not(.dark) .snake-mobile-pad [data-snake-dir]{background:radial-gradient(circle at 32% 24%,rgba(255,255,255,.64),transparent 34%),linear-gradient(145deg,rgba(255,255,255,.90),rgba(226,236,248,.86))!important;color:#1e293b!important;border-color:rgba(148,163,184,.35)!important}
  .snake-mobile-pad button svg,.snake-mobile-pad button .ui-icon{width:30px!important;height:30px!important}
  .snake-mobile-pad [data-snake-dir="up"]{grid-column:2!important;grid-row:1!important}.snake-mobile-pad [data-snake-dir="left"]{grid-column:1!important;grid-row:2!important}.snake-mobile-pad [data-snake-dir="down"]{grid-column:2!important;grid-row:3!important}.snake-mobile-pad [data-snake-dir="right"]{grid-column:3!important;grid-row:2!important}
  .snake-stage-wrap{margin-bottom:4px!important}
}
@media(max-width:430px){.snake-mobile-pad{grid-template-columns:repeat(3,70px)!important;grid-template-rows:repeat(3,62px)!important;gap:8px!important}.snake-mobile-pad button,.snake-mobile-pad [data-snake-dir]{width:70px!important;height:62px!important;min-width:70px!important;min-height:62px!important}}


/* v15.3：贪吃蛇交互细节与手机适配 */
.snake-stage-wrap{
  touch-action:pan-y pinch-zoom;
}
.snake-canvas,
.snake-overlay{
  cursor:pointer;
}
.snake-overlay.show{
  pointer-events:auto;
}
.snake-mobile-pad button{
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease, filter .18s ease;
}
.snake-mobile-pad button:hover,
.snake-mobile-pad button:focus-visible{
  transform:translateY(-2px);
  border-color:rgba(14,165,233,.38);
  box-shadow:0 14px 30px rgba(55,84,120,.12);
  outline:none;
}
.snake-mobile-pad button:active{
  transform:translateY(0) scale(.98);
}
@media(max-width:720px){
  .snake-tool-panel{
    padding:18px;
  }
  .snake-stage-wrap{
    max-width:min(92vw, 480px);
    padding:10px;
    border-radius:22px;
  }
  .snake-overlay{
    inset:10px;
    border-radius:16px;
  }
  .snake-overlay strong{
    font-size:28px;
  }
}
@media(max-width:430px){
  .snake-tool-panel{
    margin-left:-6px;
    margin-right:-6px;
    padding:14px;
  }
  .snake-stage-wrap{
    max-width:calc(100vw - 54px);
    padding:8px;
  }
  .snake-overlay{
    inset:8px;
  }
  .snake-stats span{
    font-size:12.5px;
    padding:6px 9px;
  }
  .snake-mobile-pad{
    gap:8px;
  }
  .snake-mobile-pad button{
    width:50px;
    height:50px;
    border-radius:16px;
  }
}


/* v15.8：贪吃蛇多果实机制 */
.snake-overlay span{
  max-width:30rem;
  padding:0 16px;
}

/* 贪吃蛇小屏操作区与棋盘比例。 */
@media(max-width:760px){
  .snake-tool-panel{padding:18px 14px!important;margin-left:-2px;margin-right:-2px}
  .snake-head{gap:14px!important}
  .snake-stage-wrap{width:100%;max-width:min(92vw, 430px);margin:0 auto}
  .snake-canvas{width:100%!important;height:auto!important;aspect-ratio:1 / 1;touch-action:pan-y pinch-zoom}
  .snake-mobile-pad{display:grid!important;grid-template-columns:76px 76px 76px!important;gap:14px!important;margin-top:20px!important;touch-action:none;user-select:none}
  .snake-mobile-pad button{width:76px!important;height:76px!important;border-radius:24px!important;font-size:34px!important;box-shadow:0 12px 28px rgba(55,84,120,.12);-webkit-tap-highlight-color:transparent}
  .snake-mobile-pad button:active{transform:scale(.96)}
}
@media(max-width:380px){
  .snake-mobile-pad{grid-template-columns:68px 68px 68px!important;gap:12px!important}
  .snake-mobile-pad button{width:68px!important;height:68px!important;font-size:30px!important}
}

/* 街机 HUD、特殊道具和可读性收口。 */
.snake-arcade-strip{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:-4px auto 16px}
.snake-chip{
  display:inline-flex;align-items:center;justify-content:center;min-height:34px;padding:7px 12px;border-radius:999px;
  border:1px solid color-mix(in srgb, var(--accent) 18%, var(--border));background:color-mix(in srgb, var(--panel) 76%, transparent);
  color:var(--muted);font-weight:780;font-size:13px;box-shadow:0 10px 24px rgba(55,84,120,.06);
}
.snake-chip.is-hot{
  color:#12345a;border-color:rgba(250,204,21,.46);
  background:radial-gradient(circle at 18% 20%, rgba(255,255,255,.70), transparent 34%),linear-gradient(135deg, rgba(254,243,199,.92), rgba(224,242,254,.74));
  box-shadow:0 12px 28px rgba(250,204,21,.13);
}
body.dark .snake-chip{background:rgba(15,23,42,.48);border-color:rgba(56,189,248,.20)}
body.dark .snake-chip.is-hot{color:#f8fafc;border-color:rgba(250,204,21,.42);background:linear-gradient(135deg, rgba(120,53,15,.62), rgba(30,41,59,.74))}
.snake-tip{color:var(--accent-2);max-width:min(100%, 760px)!important;letter-spacing:.01em}
.snake-stage-wrap{position:relative}
.snake-stage-wrap::after{
  content:"";position:absolute;inset:14px;border-radius:18px;pointer-events:none;
  background:radial-gradient(circle at 16% 18%, rgba(250,204,21,.10), transparent 22%),radial-gradient(circle at 82% 16%, rgba(34,197,94,.09), transparent 20%),radial-gradient(circle at 70% 78%, rgba(168,85,247,.08), transparent 24%);
  mix-blend-mode:screen;opacity:.72;
}
.snake-rush.is-hot{
  border-color:rgba(251,113,133,.55)!important;background:linear-gradient(135deg, rgba(251,113,133,.22), rgba(250,204,21,.16))!important;
  color:#be123c!important;box-shadow:0 0 0 1px rgba(251,113,133,.18), 0 12px 26px rgba(251,113,133,.12)!important;animation:snakeRushChipPulse 950ms ease-in-out infinite alternate;
}
body.dark .snake-rush.is-hot{color:#fecdd3!important}
.snake-overlay [data-snake-overlay-text]{max-width:34rem;line-height:1.75}
@keyframes snakeRushChipPulse{
  from{transform:translateY(0);filter:saturate(1)}
  to{transform:translateY(-1px);filter:saturate(1.16)}
}
@media(max-width:720px){
  .snake-arcade-strip{justify-content:flex-start;margin-top:0}
  .snake-chip{min-height:30px;padding:6px 9px;font-size:12px}
  .snake-tip{flex-basis:100%;justify-content:flex-start}
}