/* Word Spark · 单词拼拼消 — 全部样式 */
:root{
  --bg0:#14162f; --bg1:#232663; --panel:#1d2049; --panel-line:rgba(255,255,255,.10);
  --ink:#eef0ff; --ink-dim:#a6aad8; --gold:#ffd54a; --gold-deep:#f59e31;
  --green:#54e0a4; --shadow:rgba(7,8,26,.55);
  --font-game:'Fredoka','PingFang SC','Microsoft YaHei',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;overflow:hidden;overscroll-behavior:none}
body{
  font-family:var(--font-game);
  background:radial-gradient(120% 90% at 50% 0%,#2a2e75 0%,var(--bg1) 38%,var(--bg0) 100%);
  color:var(--ink); user-select:none;-webkit-user-select:none; touch-action:manipulation;
}
#app{position:relative;width:100%;max-width:480px;height:100vh;height:100dvh;margin:0 auto;display:flex;flex-direction:column;overflow:hidden}
.screen{position:absolute;inset:0;display:flex;flex-direction:column}
.screen[hidden]{display:none}
button{font-family:inherit;cursor:pointer;border:none;color:inherit}

/* ============ 首页 ============ */
#home{justify-content:center;align-items:center;text-align:center;padding:24px 26px;z-index:2}
.home-tiles{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.home-tiles span{position:absolute;display:flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:11px;font-weight:600;font-size:22px;opacity:.38;
  animation:floaty 7s ease-in-out infinite;box-shadow:0 8px 18px rgba(0,0,0,.3)}
@keyframes floaty{0%,100%{transform:translateY(0) rotate(-8deg)}50%{transform:translateY(-22px) rotate(10deg)}}
.home-kicker{font-size:13px;letter-spacing:.32em;color:var(--gold);font-weight:600;margin-bottom:10px}
.home-title{font-size:52px;font-weight:700;line-height:1.05;letter-spacing:1px;
  background:linear-gradient(180deg,#fff0b8,var(--gold) 55%,var(--gold-deep));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  filter:drop-shadow(0 6px 22px rgba(255,190,60,.35))}
.home-sub{margin-top:8px;font-size:15px;color:var(--ink-dim);font-weight:500}
.lang-row{display:flex;gap:8px;margin:16px 0 4px;justify-content:center}
.lang-btn{padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;
  background:rgba(255,255,255,.07);border:1px solid var(--panel-line);color:var(--ink-dim);transition:all .15s}
.lang-btn.active{background:linear-gradient(180deg,var(--gold),var(--gold-deep));color:#4d3405;border-color:transparent;
  box-shadow:0 4px 14px rgba(255,170,40,.3)}
.lang-btn:active{transform:scale(.95)}
.howto{margin:20px 0 18px;width:100%;display:flex;flex-direction:column;gap:8px}
.howto .row{display:flex;align-items:center;gap:14px;background:rgba(255,255,255,.06);
  border:1px solid var(--panel-line);border-radius:16px;padding:10px 14px;text-align:left}
.howto .n{flex:none;width:30px;height:30px;border-radius:50%;background:linear-gradient(180deg,var(--gold),var(--gold-deep));
  color:#5a3d05;font-weight:700;font-size:16px;display:flex;align-items:center;justify-content:center}
.howto .t{font-size:14.5px;line-height:1.45;color:#dfe2ff;font-weight:500}
.howto .t b{color:var(--gold);font-weight:600}
.btn-primary{width:100%;padding:17px;border-radius:18px;font-size:19px;font-weight:700;letter-spacing:2px;
  background:linear-gradient(180deg,#ffe27a,var(--gold) 45%,var(--gold-deep));color:#4d3405;
  box-shadow:0 10px 26px rgba(255,170,40,.35),inset 0 2px 0 rgba(255,255,255,.7);transition:transform .12s}
.btn-primary:active{transform:scale(.96)}
.home-best{margin-top:14px;font-size:13px;color:var(--ink-dim);font-weight:500}
/* ============ 关卡选择 ============ */
.level-pick{margin-top:16px;width:100%}
.level-pick-title{font-size:12px;color:var(--ink-dim);font-weight:600;letter-spacing:.1em;margin-bottom:8px;text-align:center}
.level-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:7px}
.lv{position:relative;height:38px;border-radius:11px;font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.07);border:1px solid var(--panel-line);color:var(--ink);transition:transform .12s}
.lv:active{transform:scale(.92)}
.lv.done{background:rgba(84,224,164,.12);border-color:rgba(84,224,164,.4);color:var(--green)}
.lv.next{background:linear-gradient(180deg,#ffe27a,var(--gold) 45%,var(--gold-deep));color:#4d3405;border-color:transparent;
  box-shadow:0 4px 12px rgba(255,170,40,.3)}
.lv.locked{color:rgba(255,255,255,.28);background:rgba(255,255,255,.03);cursor:not-allowed}
.lv.locked svg{width:13px;height:13px;fill:rgba(255,255,255,.32)}
.lv .lv-dot{position:absolute;top:3px;right:5px;font-size:8px;color:var(--green)}

/* ============ 游戏 HUD ============ */
#game{z-index:1}
.hud{flex:none;display:flex;align-items:center;gap:10px;padding:14px 16px 10px}
.hud .pill{background:rgba(255,255,255,.07);border:1px solid var(--panel-line);border-radius:13px;
  padding:7px 13px;font-size:13px;font-weight:600;line-height:1.2}
.hud .pill small{display:block;font-size:10.5px;color:var(--ink-dim);font-weight:500;letter-spacing:.06em}
.hud .spacer{flex:1}
.icon-btn{flex:none;width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.07);
  border:1px solid var(--panel-line);display:flex;align-items:center;justify-content:center}
.icon-btn:active{transform:scale(.92)}
.icon-btn svg{width:19px;height:19px;fill:var(--ink)}
.case-btn{font-size:15px;font-weight:700;letter-spacing:.02em;color:var(--ink-dim);line-height:1}
.case-btn.active{background:linear-gradient(180deg,var(--gold),var(--gold-deep));color:#4d3405;border-color:transparent;
  box-shadow:0 4px 14px rgba(255,170,40,.3)}

/* ============ 目标词卡 ============ */
.targets{flex:none;padding:2px 14px 10px;display:flex;flex-wrap:wrap;gap:7px;max-height:27vh;overflow-y:auto;scrollbar-width:none}
.targets::-webkit-scrollbar{display:none}
.chip{display:flex;align-items:center;gap:7px;background:rgba(255,255,255,.07);border:1px solid var(--panel-line);
  border-radius:12px;padding:6px 10px 6px 9px;transition:all .35s;cursor:pointer}
.chip:active{transform:scale(.96)}
.chip .speak-ico{width:14px;height:14px;flex:none;fill:var(--gold);opacity:.85}
.chip.listen-only{padding:8px 12px;gap:9px}
.chip.listen-only .speak-ico{width:18px;height:18px;opacity:1;filter:drop-shadow(0 0 6px rgba(255,213,74,.5))}
.chip.tap{border-color:var(--gold);box-shadow:0 0 0 2px rgba(255,213,74,.35)}
.chip .mean{font-size:13px;font-weight:600;color:#dfe2ff;max-width:5.6em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chip .slots{display:flex;gap:3px}
.chip .slots i{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.22);display:block;transition:all .3s}
.chip.solved{background:rgba(84,224,164,.14);border-color:rgba(84,224,164,.55)}
.chip.solved .mean{color:var(--green)}
.chip.solved .slots{display:none}
.chip .word{display:none;font-size:13.5px;font-weight:700;color:var(--green);letter-spacing:.06em}
.chip.solved .word{display:block;animation:pop .4s}
.chip.solved .mean{max-width:none}
@keyframes pop{0%{transform:scale(.4);opacity:0}70%{transform:scale(1.15)}100%{transform:scale(1);opacity:1}}

/* ============ 桌面 ============ */
.board-wrap{flex:1;min-height:0;padding:0 12px 14px}
#board{position:relative;width:100%;height:100%;border-radius:22px;overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015)),
    radial-gradient(rgba(255,255,255,.10) 1.3px,transparent 1.4px) 0 0/26px 26px,
    linear-gradient(180deg,#20244f,#191c40);
  border:1px solid var(--panel-line);
  box-shadow:inset 0 2px 14px rgba(0,0,0,.35),0 12px 30px rgba(0,0,0,.28)}
#fx{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:40}
.block{position:absolute;left:0;top:0;display:flex;align-items:center;justify-content:center;
  border-radius:21%;font-weight:700;color:#47330f;z-index:5;will-change:left,top;
  transform:translate(-50%,-50%) rotate(var(--rot,0deg));
  box-shadow:0 5px 0 var(--edge),0 9px 16px rgba(5,6,24,.45),inset 0 2px 3px rgba(255,255,255,.75),inset 0 -3px 5px rgba(0,0,0,.12);
  background:linear-gradient(180deg,var(--c1),var(--c2));touch-action:none;cursor:grab}
.block .ch{line-height:1;transform:translateY(-3%)}
.block.dragging{z-index:30;cursor:grabbing;animation:none!important;transition:none;
  transform:translate(-50%,-50%) scale(1.12)!important}
.block.chain{z-index:20;animation:chainPulse .5s ease-in-out infinite alternate;box-shadow:0 0 0 3px var(--gold),0 0 20px 5px rgba(255,213,74,.75),0 5px 0 var(--edge),0 9px 16px rgba(5,6,24,.45)}
@keyframes chainPulse{from{filter:brightness(1.08)}to{filter:brightness(1.22)}}
.block.glow{z-index:35;animation:glowPulse .45s ease-in-out infinite alternate;pointer-events:none}
@keyframes glowPulse{from{box-shadow:0 0 0 3px var(--gold),0 0 22px 6px rgba(255,213,74,.7),0 5px 0 var(--edge),0 9px 16px rgba(5,6,24,.45);filter:brightness(1.15)}
to{box-shadow:0 0 6px 5px #fff,0 0 46px 18px rgba(255,213,74,.95),0 9px 16px rgba(5,6,24,.4);filter:brightness(1.4)}}
.block.popping{transition:transform .3s ease,opacity .3s ease;transform:translate(-50%,-50%) scale(0) rotate(160deg)!important;opacity:0}
.block.enter{animation:tileIn .45s cubic-bezier(.2,1.4,.4,1) backwards}
@keyframes tileIn{from{opacity:0;transform:translate(-50%,-50%) scale(0) rotate(-60deg)}}
.float-word{position:absolute;z-index:45;pointer-events:none;font-weight:700;letter-spacing:.12em;
  color:var(--gold);text-shadow:0 0 18px rgba(255,213,74,.95),0 2px 4px rgba(0,0,0,.5);
  animation:floatWord 1s ease forwards}
@keyframes floatWord{0%{opacity:0;transform:translate(-50%,-50%) scale(.5)}25%{opacity:1;transform:translate(-50%,-70%) scale(1.12)}
  75%{opacity:1;transform:translate(-50%,-110%) scale(1)}100%{opacity:0;transform:translate(-50%,-150%) scale(1)}}
.hint-bubble{position:absolute;left:50%;bottom:18px;transform:translateX(-50%);z-index:50;
  background:rgba(20,22,52,.92);border:1px solid rgba(255,213,74,.5);color:#fff4d0;
  font-size:13.5px;font-weight:500;padding:10px 16px;border-radius:14px;white-space:nowrap;
  box-shadow:0 8px 22px rgba(0,0,0,.4);animation:hintBob 1.6s ease-in-out infinite}
@keyframes hintBob{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(-6px)}}

/* ============ 弹层 ============ */
.overlay{position:absolute;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;
  background:rgba(10,11,30,.66);backdrop-filter:blur(4px);padding:28px}
.overlay[hidden]{display:none}
.modal{width:100%;background:linear-gradient(180deg,#262a63,#1c1f49);border:1px solid var(--panel-line);
  border-radius:26px;padding:30px 26px 26px;text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.55);
  animation:modalIn .4s cubic-bezier(.2,1.3,.4,1)}
@keyframes modalIn{from{transform:scale(.7) translateY(30px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}
.modal h2{font-size:27px;font-weight:700;color:var(--gold);margin-bottom:4px}
.modal .sub{font-size:13.5px;color:var(--ink-dim);font-weight:500;margin-bottom:18px}
.stars{display:flex;justify-content:center;gap:10px;margin:6px 0 18px}
.stars svg{width:52px;height:52px;fill:#3a3e6e;transform:scale(0);transition:transform .3s cubic-bezier(.2,1.6,.4,1)}
.stars svg.on{fill:var(--gold);filter:drop-shadow(0 0 12px rgba(255,213,74,.7))}
.stars svg.on.show{transform:scale(1)}
.stats{display:flex;gap:10px;margin-bottom:22px}
.stats .cell{flex:1;background:rgba(255,255,255,.06);border:1px solid var(--panel-line);border-radius:14px;padding:11px 6px}
.stats .cell b{display:block;font-size:21px;font-weight:700;color:#fff}
.stats .cell small{font-size:11.5px;color:var(--ink-dim);font-weight:500}
.modal .btn-primary{width:100%;margin-bottom:10px}
.btn-ghost{width:100%;padding:14px;border-radius:16px;background:transparent;border:1px solid var(--panel-line);
  font-size:15px;font-weight:600;color:var(--ink-dim)}
.btn-ghost:active{transform:scale(.97)}
.toast{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.9);z-index:90;
  background:rgba(20,22,52,.95);border:1px solid var(--panel-line);border-radius:14px;padding:12px 22px;
  font-size:15px;font-weight:600;opacity:0;pointer-events:none;transition:all .25s}
.toast.show{opacity:1;transform:translate(-50%,-50%) scale(1)}
@media (min-width:600px){ #app{border-left:1px solid rgba(255,255,255,.08);border-right:1px solid rgba(255,255,255,.08)} }