:root{--ink:#2d1a47;--sub:#6d5a86;--line:#d8c9ec;--card:#fff;--bg:#f3eefa;--grape:#7b3fc4;--grape-dark:#5a2a99;--leaf:#4f9f45;--cell-a:#eef7e4;--cell-b:#e3f0d6}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:"Segoe UI","Malgun Gothic","Apple SD Gothic Neo",sans-serif;word-break:keep-all;background:var(--bg);color:var(--ink);user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent;overflow-x:hidden}
button{font:inherit;color:inherit}

/* 공통 카드·버튼 */
.card{background:var(--card);border:2px solid var(--line);border-radius:18px;box-shadow:0 10px 30px rgba(70,30,120,.12);padding:22px 22px 18px;text-align:center;width:min(360px,100%)}
.btn{display:inline-block;min-height:42px;padding:9px 20px;margin:6px 4px 0;border:2px solid var(--line);border-radius:12px;background:#fff;font-weight:700;font-size:15px;cursor:pointer;touch-action:manipulation}
.btn:hover{border-color:var(--grape)}
.btn.primary{background:var(--grape);border-color:var(--grape-dark);color:#fff}
.btn.primary:hover{background:var(--grape-dark)}
.btn.small{min-height:34px;padding:5px 12px;margin:0;font-size:13px}

/* 🏠 시작 화면 */
.screen{position:fixed;inset:0;display:flex;align-items:flex-start;justify-content:center;padding:14px;overflow:auto;z-index:900;background:var(--bg)}
.screen>.card{margin:auto}
#home.hide{display:none}
#home h2{margin:0 0 6px;font-size:25px;line-height:1.3;color:var(--grape-dark)}
#home .desc{margin:0 0 12px;font-size:14px;color:var(--sub)}
#home label{display:block;text-align:left;font-weight:700;font-size:14px;margin:10px 0 5px}
#nick{width:100%;font-size:16px;padding:10px 12px;border:2px solid var(--line);border-radius:10px;outline:none;user-select:text;-webkit-user-select:text}
#nick:focus{border-color:var(--grape)}
#nickErr{color:#c4224b;font-size:12px;text-align:left;min-height:16px;margin-top:3px}
.levels{display:flex;gap:6px}
.levels button{flex:1;min-width:0;padding:8px 2px;border:2px solid var(--line);border-radius:10px;background:#fff;font-size:14px;font-weight:700;cursor:pointer;touch-action:manipulation}
.levels button small{display:block;font-size:11px;font-weight:400;color:var(--sub)}
.levels button.active{border-color:var(--grape);background:#f1e7fd;color:var(--grape-dark)}
.level-note{margin:8px 0 0;font-size:12px;color:var(--sub);min-height:17px}
#startBtn{width:100%;margin:14px 0 0;font-size:17px}
.how{margin:12px 0 0;font-size:12px;line-height:1.6;color:var(--sub);white-space:pre-line}

/* 🎮 게임 화면 */
#game{display:flex;flex-direction:column;align-items:center;padding:12px 10px 14px;min-height:100%}
#game h1{margin:0;font-size:22px;color:var(--grape-dark);text-align:center}
.player-line{margin:2px 0 8px;font-size:13px;color:var(--sub);max-width:100%;overflow-wrap:anywhere;text-align:center}
.player-line b{color:var(--ink)}
.hud{display:flex;align-items:center;justify-content:space-between;gap:8px;width:var(--board-px,320px);max-width:100%}
.stat{display:flex;flex-direction:column;align-items:flex-start;line-height:1.15}
.stat span{font-size:11px;color:var(--sub)}
.stat b{font-size:18px;font-variant-numeric:tabular-nums}
.progress{width:var(--board-px,320px);max-width:100%;height:6px;margin:7px 0 8px;border-radius:9px;background:#e4d9f3;overflow:hidden}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,#9d5ae0,#7b3fc4);transition:width .2s}
.board-wrap{position:relative;width:var(--board-px,320px);height:var(--board-px,320px);border:3px solid var(--grape-dark);border-radius:10px;overflow:hidden;background:var(--cell-a);touch-action:none;flex:none}
#board{display:block;width:100%;height:100%}
.board-msg{position:absolute;inset:0;display:flex;align-items:flex-start;padding-top:14%!important;justify-content:center;text-align:center;padding:16px;font-weight:800;font-size:18px;line-height:1.5;color:#fff;background:rgba(45,26,71,.55);pointer-events:none;white-space:pre-line}
.board-msg:empty{display:none}

/* 휴대폰 방향 버튼: 터치 기기에서만 보입니다. */
.pad{display:none;grid-template-columns:repeat(3,64px);grid-template-rows:repeat(2,52px);gap:6px;margin-top:10px}
.pad button{border:2px solid var(--line);border-radius:12px;background:#fff;font-size:20px;color:var(--grape-dark);touch-action:manipulation;cursor:pointer}
.pad button:active{background:#efe4fc}
.pad [data-dir=up]{grid-column:2;grid-row:1}
.pad [data-dir=left]{grid-column:1;grid-row:2}
.pad [data-dir=down]{grid-column:2;grid-row:2}
.pad [data-dir=right]{grid-column:3;grid-row:2}
@media (pointer:coarse){.pad{display:grid}}

/* 🏁 결과 팝업 */
.overlay{display:none;background:rgba(45,26,71,.25);z-index:800}
.overlay.show{display:flex}
#result .card{animation:resIn .25s ease-out}
@keyframes resIn{from{transform:scale(.85);opacity:0}to{transform:scale(1);opacity:1}}
.res-image:empty{display:none}
.res-image img,.res-image .emoji{display:block;margin:0 auto 4px;width:96px;height:96px;object-fit:contain;font-size:76px;line-height:96px}
#resTitle{font-size:34px;font-weight:900;color:var(--grape-dark);letter-spacing:1px}
#resTitle.lose{color:#8b1a3a}
#resTitle.clear{background:linear-gradient(90deg,#ff4d4d,#ffb000,#2fbf5a,#2f8fff,#a04dff,#ff4d4d);background-size:300% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:rainbow 2s linear infinite}
#resSub{font-size:14px;margin:2px 0 10px;color:var(--sub)}
.field{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:8px 12px;margin:6px 0;border-radius:10px;background:#f6f1fc;font-weight:700;font-size:14px}
.field>span:first-child{flex-shrink:0;color:var(--sub)}
.field .v{max-width:210px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-variant-numeric:tabular-nums}
.field.best .v{color:var(--grape)}
.field[hidden]{display:none}
#resMsg{margin:10px 0 12px;padding:12px 10px;border-radius:10px;border:2px dashed var(--line);font-weight:700;font-size:15px;color:var(--grape-dark);overflow-wrap:anywhere}

/* 🎆 CLEAR 축하 화면 */
#celebrate{position:fixed;inset:0;display:none;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:12px;background:rgba(25,12,45,.8);z-index:1000;cursor:pointer;overflow:hidden;text-align:center}
#celebrate.show{display:flex}
#celebrateImage img,#celebrateImage .emoji{display:block;width:clamp(90px,34vh,220px);height:clamp(90px,34vh,220px);object-fit:contain;font-size:clamp(70px,26vh,170px);line-height:clamp(90px,34vh,220px);animation:bounceIn .8s cubic-bezier(.2,1.6,.4,1)}
#celebrate .title{font-size:clamp(40px,12vw,88px);font-weight:900;letter-spacing:4px;line-height:1.15;background:linear-gradient(90deg,#ff4d4d,#ffd000,#4dff88,#4dc3ff,#c04dff,#ff4d4d);background-size:300% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:rainbow 2s linear infinite,zoom .6s ease-out;filter:drop-shadow(0 4px 6px rgba(0,0,0,.5))}
#celebrate .sub{color:#fff;font-size:clamp(14px,4vw,20px);max-width:100%;overflow-wrap:anywhere}
#celebrate .close{color:#c9bddb;font-size:13px;margin-top:12px}
@keyframes bounceIn{0%{transform:scale(0) rotate(-180deg)}100%{transform:scale(1) rotate(0)}}
@keyframes zoom{0%{transform:scale(3);opacity:0}100%{transform:scale(1);opacity:1}}
@keyframes rainbow{to{background-position:300% 0}}
#fx{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:1001;display:none}

@media (max-width:480px){
  .card{padding:18px 14px 14px}
  #home h2{font-size:22px}
  .btn{padding:9px 14px}
}
@media (prefers-reduced-motion:reduce){
  #result .card,#resTitle.clear,#celebrateImage img,#celebrateImage .emoji,#celebrate .title{animation:none}
}

/* 시작·결과 창이 떠 있는 동안 뒤의 게임 화면이 길어도 스크롤이 생기지 않게 */
html:has(#home:not(.hide)),html:has(.overlay.show){overflow:hidden}