/* Shared expression of UP3's framed surface and kouploader.jp's wordmark/nav. */
:root{color-scheme:light;--ink:#24333e;--muted:#667782;--line:#d4dce1;--accent:#007faf;--blue:#007bb8;--surface:#fff;--soft:#f3f6f8}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:#edf1f3;color:var(--ink);font:14px/1.65 Arial,"Hiragino Kaku Gothic ProN",Meiryo,sans-serif;overflow-wrap:anywhere}
header,main,footer,nav{width:min(960px,calc(100% - 40px));margin:auto}header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:28px 0 24px}
.brand{font-family:"Arial Black",Arial,sans-serif;font-size:38px;font-weight:900;line-height:1.1;letter-spacing:1px;text-decoration:none;color:#22bbe4;-webkit-text-stroke:1px #fff;text-shadow:2px 2px 0 #103449,-2px -2px 0 #103449,2px -2px 0 #103449,-2px 2px 0 #103449,3px 3px 0 #103449}.brand span{display:block;font-size:13px;letter-spacing:3px;font-weight:700;color:#168caf;-webkit-text-stroke:0;text-shadow:none;margin-top:10px}
.status{font-size:12px;padding:5px 12px;border:1px solid var(--line);border-radius:20px;background:#fff;white-space:nowrap}.status:before{content:"";display:inline-block;width:6px;height:6px;background:#19926d;border-radius:50%;margin-right:7px}
nav{display:flex;gap:4px;background:#172731;padding:5px 12px;border-radius:6px;flex-wrap:wrap}nav a{color:#76d6f3;text-decoration:none;font-size:12px;padding:6px 13px;border-radius:3px}nav a:hover,nav a:focus-visible{background:#ffffff12;color:#fff}nav [aria-current=page]{color:#fff;background:#ffffff12}a{color:var(--accent);text-underline-offset:3px}
main{padding:28px 0 20px}.intro{margin-bottom:22px}.intro h1{font-size:22px;letter-spacing:.02em;margin:0 0 5px;font-weight:650}.intro p,.hint{font-size:12px;color:var(--muted);margin:0}.workspace{border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:0 24px 24px;margin-bottom:22px;box-shadow:0 2px 6px #18354104}.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);margin-bottom:20px}.panel-heading h2{font-size:15px;margin:0;font-weight:650}
.notice{font-size:12px;padding:10px 12px;background:#eff7fb;border:1px solid #d3e8f1;border-radius:4px;color:#31637c;margin:0 0 20px}.notice.error{color:#944524;background:#fff5ed;border-color:#eed4c1}.field{display:block;margin:0 0 20px;font-size:13px;font-weight:600}.field small{display:block;font-size:11px;font-weight:400;color:var(--muted);margin-top:5px}.required{font-size:10px;color:#8a4b32;background:#fff0e7;padding:2px 5px;border-radius:3px;margin-left:7px}
input,select,textarea,button{font:inherit}input,select,textarea{display:block;width:100%;margin-top:7px;padding:10px 12px;border:1px solid #c7d2d9;border-radius:4px;background:#fff;color:var(--ink);font-size:14px;min-height:44px}textarea{resize:vertical;min-height:160px;line-height:1.7}input::placeholder,textarea::placeholder{color:#8998a1}select{max-width:420px}button{border:1px solid #c4d0d8;background:#fff;color:var(--ink);border-radius:5px;padding:8px 13px;cursor:pointer;font-size:12px;min-height:40px}.primary{background:linear-gradient(#109ed0,#0079b2);border-color:#0079ad;color:#fff;padding:11px 24px;font-weight:600;min-height:44px}.primary:hover{background:linear-gradient(#168fbb,#006da0)}button:disabled{opacity:.55;cursor:default}input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible,a:focus-visible{outline:2px solid #008ac0;outline-offset:3px}.submit-row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:18px;border-top:1px solid var(--line);margin-top:20px}.submit-row .hint{max-width:560px}.counter{text-align:right;font-size:11px;color:var(--muted);margin-top:-15px;margin-bottom:18px}.result{white-space:pre-wrap;overflow-wrap:anywhere}.receipt{font-family:monospace;font-size:14px}.explanation{font-size:12px;color:var(--muted);margin:0 0 20px}.explanation p{margin:4px 0}
.tools{display:flex;align-items:end;gap:12px;margin-bottom:18px}.tools label{font-size:12px}.tools input{margin-top:4px;min-height:40px}.list-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:4px}table{border-collapse:collapse;width:100%;font-size:12px;min-width:540px}th,td{padding:10px 12px;border-bottom:1px solid #e3e9ed;text-align:left}th{background:#edf2f5;color:#526976;font-size:11px}tbody tr:nth-child(even){background:#f8fafb}tbody tr:last-child td{border-bottom:0}code{font-size:11px}pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:13px;line-height:1.7}.details-grid{display:grid;grid-template-columns:100px 1fr;gap:8px 16px;font-size:12px}.details-grid dt{color:var(--muted)}.details-grid dd{margin:0}#next{margin-top:14px}
footer{border-top:1px solid var(--line);padding:18px 0 30px;display:flex;justify-content:space-between;gap:24px;color:var(--muted);font-size:11px}footer p{margin:0}.skip-link{position:absolute;left:20px;top:-70px;padding:10px;background:#fff;z-index:2}.skip-link:focus{top:8px}
@media(max-width:540px){header,main,footer,nav{width:calc(100% - 24px)}header{padding:20px 0 18px;gap:10px}.brand{font-size:28px;letter-spacing:0}.brand span{font-size:10px;letter-spacing:2px;margin-top:8px}.status{font-size:10px;padding:4px 8px}nav{gap:0;padding:5px 4px;justify-content:space-between}nav a{font-size:11px;padding:5px 7px}main{padding-top:22px}.intro h1{font-size:20px}.workspace{padding:0 16px 18px}.panel-heading{padding:12px 0;margin-bottom:16px}.panel-heading .hint{font-size:10px}input,select,textarea{font-size:16px}.submit-row{align-items:stretch;flex-direction:column;gap:14px}.primary{width:100%}footer{flex-direction:column;gap:8px}.tools{flex-wrap:wrap}.details-grid{grid-template-columns:1fr;gap:4px}.details-grid dd{margin-bottom:10px}}

.spinner{display:inline-block;width:1em;height:1em;flex:none;vertical-align:-.1em;margin-right:.6em;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:kouploader-spin .75s linear infinite}.detail-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.panel-heading{flex-wrap:wrap}.back-button{white-space:nowrap}.details-grid{grid-template-columns:minmax(120px,190px) minmax(0,1fr)}
@keyframes kouploader-spin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.spinner{animation:none}}
@media(max-width:540px){.details-grid{grid-template-columns:1fr}}

.brand{max-width:calc(100% - 90px)}.brand img{display:block;width:330px;max-width:100%;height:auto}

.danger{border-color:#b34b3c;background:#b84232;color:#fff;font-weight:600}.danger:hover{background:#9f3528}input[type=checkbox]{display:inline-block;width:auto;min-height:auto;margin:0 6px 0 0}.confirmation{padding:18px 0}.confirmation label{display:block;margin:18px 0}