:root{font-family:'Noto Sans JP',sans-serif;color:#244b48;background:#e8eeea;font-synthesis:none}*{box-sizing:border-box}body{margin:0}main{max-width:480px;margin:auto;min-height:100dvh;background:#f5f7f4;padding:0 28px 110px}header{height:88px;display:flex;align-items:center;justify-content:space-between}header span{font-size:9px;letter-spacing:2px;color:#889a91}.brand{color:#244b48;text-decoration:none;font-size:19px}.brand b{font-size:15px;margin-left:6px;letter-spacing:2px}.eyebrow{font-size:10px;letter-spacing:2px;color:#7e9388;margin-top:24px}h1{font-size:29px;line-height:1.6;letter-spacing:3px;font-weight:500;margin:15px 0 16px}.status{font-size:11px;color:#6e9086;letter-spacing:.5px}.glass-scene{height:290px;position:relative;display:grid;place-items:center;margin-top:12px}.glass{position:relative;width:178px;height:226px;border:2px solid #b4ccc6;border-top:3px solid #a4c1b7;border-radius:10px 10px 42px 42px;overflow:hidden;transform:perspective(650px) rotateX(-7deg);background:linear-gradient(100deg,#ffffffb0,#e6f1eb22 55%,#ffffff90);box-shadow:inset 7px 0 14px #ffffffaa,8px 10px 30px #bfd4cc25}.glass:after{content:'';position:absolute;inset:7px;border:1px solid #fff8;border-radius:3px 3px 33px 33px;pointer-events:none}#water{position:absolute;bottom:0;left:0;width:100%;height:3%;background:linear-gradient(180deg,#8dcfc5c9,#60b8b4d9);transition:height 1s;min-height:4px}.wave{height:14px;position:absolute;top:-6px;left:-50%;width:200%;border-radius:45%;background:#a8dcd3;animation:ripple 5s ease-in-out infinite alternate}.shine{position:absolute;top:15px;bottom:20px;left:14px;width:9px;background:#ffffff60;border-radius:10px}.marks{position:absolute;right:14px;top:12px;bottom:46px;display:flex;flex-direction:column;justify-content:space-between;font-size:10px;color:#527d77}.shadow{position:absolute;bottom:20px;width:140px;height:12px;border-radius:50%;background:#77978a18;filter:blur(5px)}.elapsed{text-align:center;font-size:46px;font-weight:500;letter-spacing:1px;font-variant-numeric:tabular-nums}.elapsed span{font-size:13px;color:#7c938a;margin:0 9px 0 4px}.caption{text-align:center;font-size:10px;color:#7c938a;margin:10px -12px 27px}.actions{display:flex;gap:10px}button{font:inherit;cursor:pointer;touch-action:manipulation;border:0}button:focus-visible{outline:3px solid #80b5a9;outline-offset:3px}.primary{background:#2f6256;color:white;border-radius:16px;min-height:55px;font-size:13px;letter-spacing:1px;width:100%}.secondary{background:#e4ebe4;color:#45695e;min-width:75px;border-radius:16px}.text-button{background:none;color:#728b80;font-size:11px;display:block;margin:19px auto;padding:8px}footer{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:min(100%,480px);padding:12px 28px max(16px,env(safe-area-inset-bottom));background:#f5f7f4f5;backdrop-filter:blur(12px);display:flex;border-top:1px solid #e2e9e2;z-index:5}footer button{background:none;color:#96a79f;font-size:10px;width:50%;display:grid;gap:4px}footer span{font-size:22px}footer .active{color:#2f6256}.segments{display:flex;background:#e8eee7;padding:4px;border-radius:14px;margin:26px 0 20px}.segments button{width:33.33%;background:none;color:#82938a;border-radius:10px;padding:10px;font-size:12px}.segments .selected{background:#fff;color:#315b4e;box-shadow:0 2px 8px #244b4808}.period{display:flex;justify-content:space-between;align-items:center;font-size:12px}.period button{font-size:25px;background:none;color:#5c7b70;padding:5px 12px}.summary{text-align:center;margin:22px 0;display:grid;gap:8px}.summary>span,.summary small{font-size:11px;color:#7e9388}.summary strong{font-size:30px;font-weight:500}.chart{height:140px;display:flex;gap:5px;align-items:end;border-bottom:1px solid #dbe4dc;padding:10px 2px 22px}.bar{flex:1;background:#92c6b8;border-radius:5px 5px 0 0;min-height:2px;position:relative;max-width:48px}.bar small{position:absolute;bottom:-20px;left:50%;transform:translateX(-50%);font-size:8px;color:#82968c}h2{font-size:13px;font-weight:500;margin-top:30px}.record{display:flex;justify-content:space-between;align-items:center;width:100%;padding:17px 0;border-bottom:1px solid #e1e8e1;background:none;color:#3d6155;font-size:12px}.record span{color:#81958b;font-size:10px}.note{font-size:10px;color:#8a9b92;line-height:1.9}.empty{text-align:center;padding:35px 0;color:#8a9b92;font-size:12px}dialog{border:0;border-radius:24px;padding:25px;width:min(90%,380px);background:#f5f7f4;color:#244b48}dialog::backdrop{background:#173e3855;backdrop-filter:blur(4px)}dialog h2{font-size:20px;margin-top:0}label{font-size:12px;display:block;margin:15px 0}input{display:block;padding:12px;width:100%;border:1px solid #ccd9ce;border-radius:8px;background:white;color:#244b48;font:inherit;margin-top:6px;min-width:0}.time-inputs{display:flex;gap:15px}.time-inputs label{width:50%}#error{color:#a65d44;font-size:11px}#toast{position:fixed;top:16px;left:50%;transform:translateX(-50%);background:#244b48;color:white;border-radius:12px;padding:12px 20px;font-size:12px;z-index:20;display:none}@keyframes ripple{from{transform:translateX(-8px) rotate(-2deg)}to{transform:translateX(8px) rotate(2deg)}}@media(prefers-reduced-motion:reduce){.wave{animation:none}#water{transition:none}}@media(min-width:600px){main{box-shadow:0 0 70px #31544712}}[hidden]{display:none!important}
/* Sand / monochrome revision */
:root{color:#232323;background:#e8e7e3;font-family:'Helvetica Neue',Arial,'Noto Sans JP',sans-serif}main{background:#faf9f6;padding:0 28px 110px}header{height:76px;border-bottom:1px solid #deddd7}.brand{color:#222;font-size:24px}.brand b{font-size:13px;letter-spacing:3px}header span{color:#777;font-size:9px;letter-spacing:2px}.eyebrow{color:#85837c;margin-top:28px;letter-spacing:1.5px}h1{font-size:20px;letter-spacing:1px;margin:18px 0 15px;line-height:1.5;font-weight:400}.status{font-size:10px;color:#79766f}.sand-scene{position:relative;height:270px;margin:22px 0 20px;overflow:hidden}.limit{position:absolute;left:0;right:0;bottom:82%;border-top:1px solid #ceccc4;z-index:2}.limit span{position:absolute;right:0;bottom:6px;font:9px monospace;letter-spacing:1px;color:#8b887f}.sand-pile{position:absolute;bottom:0;left:0;right:0;background-color:#262523;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath fill='%23928d81' filter='url(%23n)' opacity='.45' d='M0 0h180v180H0z'/%3E%3C/svg%3E");clip-path:polygon(0 95%,8% 92%,18% 80%,29% 59%,39% 25%,47% 5%,50% 0,54% 8%,65% 38%,77% 70%,90% 89%,100% 95%,100% 100%,0 100%);transition:height 1s;min-height:0}.ground{position:absolute;bottom:0;width:100%;height:1px;background:#bab7ae}.origin{position:absolute;bottom:7px;right:0;font:9px monospace;color:#888}.falling{position:absolute;left:50%;top:0;width:2px;height:100%;opacity:.5;background:repeating-linear-gradient(to bottom,#262523 0 2px,transparent 2px 14px);animation:fall .65s linear infinite;mask-image:linear-gradient(#000,transparent 95%)}@keyframes fall{to{background-position:0 14px}}.elapsed{font-family:'Helvetica Neue',Arial,sans-serif;font-size:54px;font-weight:400;letter-spacing:-2px}.elapsed span{font-family:'Noto Sans JP',sans-serif;font-size:11px;color:#817e75;letter-spacing:0}.caption{color:#8b877e;font-size:10px;margin:10px 0 28px}.primary{background:#272623;color:#faf9f6;border-radius:3px;min-height:54px}.secondary{background:#e8e6df;color:#333;border-radius:3px}.text-button{color:#716d64;font-size:11px}.actions{gap:8px}footer{background:#faf9f6f5;border-top-color:#dedbd2}footer button{color:#a09b90}footer .active{color:#262523}footer span{font-size:20px}.segments{background:#eeece6;border-radius:3px}.segments button{border-radius:2px;color:#858075}.segments .selected{color:#222;background:#faf9f6;box-shadow:none}.period button{color:#333}.summary>span,.summary small{color:#817c72}.bar{background:#44413b;border-radius:1px 1px 0 0}.chart{border-color:#d8d5cb}.record{color:#36332e;border-color:#e0ddd5}.record span,.note,.empty{color:#8a857b}dialog{background:#faf9f6;color:#262523;border-radius:6px}dialog::backdrop{background:#24221e66}input{border-color:#d7d3c9;border-radius:3px;color:#222;font-size:16px}.overnight{display:flex;align-items:center;gap:9px}.overnight input{width:17px;height:17px;margin:0}#toast{background:#222}button:focus-visible{outline-color:#9b9384}@media(prefers-reduced-motion:reduce){.falling{animation:none}.sand-pile{transition:none}}@media(max-height:750px){.sand-scene{height:210px;margin-top:15px}.eyebrow{margin-top:19px}.caption{margin-bottom:20px}header{height:66px}}

.preview-link{margin:-16px auto 14px;font-size:10px}.delete-button{display:block;background:none;color:#a04b3c;font-size:12px;margin:16px auto 0;padding:12px}.sand-examples{display:flex;gap:15px;margin:25px 0;text-align:center}.sand-examples>div{flex:1;min-width:0}.sand-scene.mini{height:130px;margin:0 0 15px}.sand-examples b{font-size:12px;font-weight:500}#previewDialog{width:min(92%,430px)}input:disabled{background:#efede7;color:#827c70}


.elapsed small{font-size:24px;letter-spacing:0}.elapsed{font-size:44px}.summary strong{font-size:25px}#totalFields label{width:33.333%}.record{gap:8px}.record>div:last-child{text-align:right}