@font-face{font-family:"Ma Shan Zheng";src:url("./fonts/ma-shan-zheng-title.ttf") format("truetype");font-style:normal;font-weight:400;font-display:swap}
:root{font-family:"Avenir Next","PingFang SC","Microsoft YaHei",sans-serif;color:#26332f;background:#edf0e9;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100dvh}button{font:inherit;cursor:pointer}button:focus-visible{outline:3px solid #177e76;outline-offset:3px}button:disabled{cursor:default}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.ambient{position:fixed;inset:-15%;z-index:-2;background:radial-gradient(circle at 20% 12%,#cfdbcc 0,transparent 39%),radial-gradient(circle at 80% 68%,#d5ded5 0,transparent 43%);overflow:hidden}.ambient:before{content:"";position:absolute;inset:0;background-image:var(--ambient-image);background-position:center;background-size:cover;filter:blur(72px) saturate(.8);opacity:.48;transform:scale(1.2)}.ambient:after{content:"";position:absolute;inset:0;background:linear-gradient(155deg,#f7f8f3d9,#f2f3edbd 48%,#e5ebe4d9)}
.app{position:relative;width:min(100%,520px);min-height:100dvh;margin:auto;padding:calc(10px + env(safe-area-inset-top)) 20px calc(18px + env(safe-area-inset-bottom));display:flex;flex-direction:column}.scorebar{display:flex;align-items:start;justify-content:space-between;padding:0 5px}.metric{display:flex;flex-direction:column;gap:2px}.metric span{font-size:11px;color:#687c70;letter-spacing:.12em}.metric strong{font-size:29px;line-height:1.2;font-weight:500;font-variant-numeric:tabular-nums;letter-spacing:-.05em}.metric-time{text-align:right}.metric-time.is-urgent strong{color:#b94d39}.game{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:clamp(22px,4dvh,45px);padding:12px 0 15px}
.board{--board-tile:min(22vw,9.8dvh,88px);--cols:4;--rows:5;position:relative;width:calc(var(--cols)*var(--board-tile));height:calc(var(--rows)*var(--board-tile));overflow:hidden;border-radius:4px;background:#d4ddd2;box-shadow:0 25px 65px #2e534525,0 3px 9px #1f483220}.board[data-columns="5"]{--board-tile:min(17.9vw,9.8dvh,88px)}.board:before{content:"";position:absolute;inset:0;background-image:var(--image);background-size:cover;background-position:center;filter:grayscale(1) contrast(.8);opacity:.5}.board-slots{position:absolute;inset:0;display:grid;grid-template-columns:repeat(var(--cols),1fr);grid-template-rows:repeat(var(--rows),1fr)}.slot{position:relative;border:1px solid #eef4e655;background:#d6dfd63d;padding:0;border-radius:0;min-width:0;min-height:0}.slot:before{content:"";position:absolute;inset:0;background:linear-gradient(140deg,#ffffff25,#ffffff05);pointer-events:none}.slot.is-placed{border-color:#ffffff20;background-image:var(--piece-image);background-size:var(--piece-bg-size);background-position:var(--piece-position);animation:piece-reveal .3s ease-out both}.slot.is-placed:before{display:none}.slot.is-wrong{animation:wrong .32s ease}.slot:not(.is-placed):hover{background-color:#b1c5ad88}
.preview-image{position:absolute;inset:0;background-image:var(--image);background-size:cover;background-position:center;opacity:0;pointer-events:none}.app[data-phase="preview"] .preview-image,.app[data-phase="transition"] .preview-image{opacity:1}.preview-count{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:104px;height:104px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;background:#1b2d2ba6;backdrop-filter:blur(12px);box-shadow:0 0 0 1px #ffffff53;opacity:0;pointer-events:none}.app[data-phase="preview"] .preview-count{opacity:1}.preview-count strong{font-family:"Iowan Old Style",Georgia,serif;font-size:64px;line-height:1;font-weight:400}
.board-loading{position:absolute;inset:0;display:none;align-items:center;justify-content:center;flex-direction:column;gap:14px;background:#dbe4dc;color:#44635a;font-size:13px}.app[data-phase="loading"] .board-loading{display:flex}.loading-orbit{width:26px;height:26px;border:2px solid #638f7a55;border-top-color:#2d7a69;border-radius:50%;animation:spin 1s linear infinite}.board-loading button{border:1px solid #598a76;border-radius:20px;background:#f7faf5;color:#276452;padding:7px 17px}
.tray{--tray-cols:5;--tray-tile:min(12.2vw,5.8dvh,54px);position:relative;display:grid;grid-template-columns:repeat(var(--tray-cols),var(--tray-tile));grid-auto-rows:var(--tray-tile);gap:7px;justify-content:center;align-content:start;min-height:calc(4*var(--tray-tile) + 21px)}.tray-tile{position:relative;padding:0;width:var(--tray-tile);height:var(--tray-tile);border:0;border-radius:3px;box-shadow:0 2px 6px #27513a2b;background-image:var(--piece-image);background-size:var(--piece-bg-size);background-position:var(--piece-position);transition:transform .2s,box-shadow .2s,opacity .2s}.tray-tile:hover:not(:disabled){transform:translateY(-2px)}.tray-tile.is-selected{outline:3px solid #246e67;outline-offset:3px;transform:translateY(-3px);box-shadow:0 8px 16px #274c3d35}.tray-tile.is-used{background-image:none;background-color:#cad5ca66;box-shadow:inset 0 0 0 1px #9eb2a94d;opacity:.6}.tray-tile.is-pending{opacity:0}.tray-tile.is-landing{transition:none}.app[data-phase="preview"] .tray-tile,.app[data-phase="loading"] .tray-tile{opacity:0}.tray-light-mask{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:2}.tray-light{position:absolute;inset:0;background:linear-gradient(90deg,transparent 32%,#ffffff10 43%,#ffffffa8 50%,#ffffff1a 57%,transparent 68%);mix-blend-mode:screen}
.flight-layer{position:fixed;inset:0;pointer-events:none;z-index:15}.flight-tile{position:fixed;border-radius:2px;box-shadow:0 6px 14px #1b423831;background-image:var(--piece-image);background-size:var(--piece-bg-size);background-position:var(--piece-position);will-change:transform;transform-origin:top left;top:0;left:0}
.success-banner{position:absolute;inset:0;z-index:3;display:grid;place-items:center;pointer-events:none}.success-lettering{display:block;font-family:"Marker Felt","Noteworthy","Bradley Hand","Segoe Print",cursive;font-size:clamp(68px,22vw,108px);font-style:italic;font-weight:900;line-height:1;letter-spacing:.12em;color:#1d6758;-webkit-text-stroke:2px #f8f4de;text-shadow:4px 6px 0 #a8c6a8,0 12px 22px #315e4b6b;animation:ok-enter .7s cubic-bezier(.2,1.4,.3,1) both,ok-float 2.4s ease-in-out .7s infinite alternate}
.modal{position:fixed;inset:0;z-index:30;display:grid;grid-template-columns:minmax(0,1fr);place-items:center;padding:22px;background:#dce6dd73;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.modal[hidden]{display:none}.modal-card{width:100%;max-width:395px;min-width:0;min-height:min(490px,calc(100dvh - 44px));max-height:calc(100dvh - 44px);overflow-y:auto;padding:32px 30px 28px;display:flex;flex-direction:column;justify-content:space-between;background:#f8faf5e8;border:1px solid #ffffffb8;box-shadow:0 30px 80px #3157402b;border-radius:7px;text-align:center}.modal-intro,.modal-actions{flex:none}.modal-kicker{font-size:10px;letter-spacing:.16em;color:#53816d;font-weight:700}.modal-icon{width:64px;height:64px;margin:25px auto;display:grid;grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,1fr);gap:3px;transform:rotate(-8deg)}.modal-icon span{background:#b9d2b4;border-radius:2px}.modal-icon span:nth-child(2){background:#6b9f8b}.modal-icon span:nth-child(3){background:#d7ab80}.modal-card h2{font-family:"Iowan Old Style","Songti SC",Georgia,serif;font-size:31px;margin:0 0 12px;font-weight:500;letter-spacing:-.04em}.modal-card p{font-size:13px;line-height:1.8;color:#64756b;margin:0 auto 22px;max-width:280px}.primary-button{width:100%;background:#246c60;border:0;border-radius:4px;color:white;display:flex;align-items:center;justify-content:space-between;padding:16px 18px;font-size:14px;font-weight:600}.primary-button:hover{background:#195a50}.primary-button span{font-size:20px;line-height:.7}.last-score{padding:10px 14px;margin-bottom:17px;background:#e9f0e8;border-radius:4px;font-size:12px;color:#536d5f}
.modal-card h2.game-title{font-family:"Ma Shan Zheng","STKaiti","Kaiti SC",serif;font-size:clamp(38px,10vw,48px);font-weight:400;letter-spacing:.04em;color:#214e43}
@keyframes spin{to{transform:rotate(360deg)}}@keyframes piece-reveal{from{opacity:.35;transform:scale(.92)}to{opacity:1;transform:scale(1)}}@keyframes wrong{25%{transform:translateX(-3px)}50%{transform:translateX(3px)}75%{transform:translateX(-2px)}}@keyframes ok-enter{0%{opacity:0;transform:translateY(22px) rotate(-14deg) scale(.76)}60%{opacity:1;transform:translateY(-7px) rotate(-6deg) scale(1.12)}100%{opacity:1;transform:translateY(0) rotate(-9deg) scale(1)}}@keyframes ok-float{from{transform:translateY(0) rotate(-9deg)}to{transform:translateY(-6px) rotate(-7deg)}}
@media (min-width:700px){.board,.board[data-columns="5"]{--board-tile:min(10dvh,92px)}.tray{--tray-tile:min(6.5dvh,54px)}}
@media (max-height:720px){.app{padding-top:calc(8px + env(safe-area-inset-top));padding-bottom:calc(10px + env(safe-area-inset-bottom))}.game{gap:18px;padding:6px 0 8px}.board{--board-tile:min(20vw,10.2dvh,76px)}.board[data-columns="5"]{--board-tile:min(17.9vw,10.2dvh,76px)}.tray{--tray-tile:min(12vw,7dvh,49px)}}
@media (prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
@media (prefers-reduced-motion:reduce){.success-lettering{animation:none;transform:rotate(-9deg)}}