*{box-sizing:border-box}
:root{--ink:#1f2430;--muted:#5d6577;--line:#e3e6ee;--bg:#f6f7fb;--brand:#3b5bdb;--brand2:#0ca678;--bad:#c92a2a;--ok:#2b8a3e;--warn:#e67700}
body{margin:0;font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand)}
header.top{display:flex;align-items:center;gap:18px;padding:12px 28px;background:#fff;border-bottom:1px solid var(--line)}
header.top .logo{font-weight:700;font-size:17px;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px}
header.top .logo img{height:30px}
header.top nav{display:flex;gap:4px;flex:1}
header.top nav a{padding:6px 12px;border-radius:8px;text-decoration:none;color:var(--muted)}
header.top nav a.on,header.top nav a:hover{background:var(--bg);color:var(--ink)}
header.top .who{color:var(--muted);font-size:13px}
header.top form{margin:0}
main{max-width:1180px;margin:0 auto;padding:28px}
main.narrow{max-width:520px}
h1{font-size:26px;margin:4px 0 6px}h2{font-size:19px;margin:0 0 10px}h3{font-size:16px;margin:16px 0 6px}
.sub{color:var(--muted);margin:0 0 18px}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;margin:0 0 18px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
label{display:block;font-weight:600;margin:12px 0 4px;font-size:14px}
.hint{display:block;font-weight:400;color:var(--muted);font-size:13px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=url],select{width:100%;padding:10px 12px;border:1px solid #cfd4df;border-radius:8px;font:inherit;background:#fff}
input[type=color]{width:56px;height:36px;border:1px solid #cfd4df;border-radius:8px;padding:2px}
input[type=file]{font:inherit;font-size:14px}
button,.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:8px;padding:10px 18px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
button.secondary,.btn.secondary{background:#fff;color:var(--ink);border:1px solid #cfd4df}
button.small,.btn.small{padding:6px 12px;font-size:13px}
button:disabled{opacity:.5;cursor:default}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.copy{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#eef1fb;border:1px solid #d6dcf3;padding:6px 10px;border-radius:6px;word-break:break-all}
.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;background:#eef0f4;color:var(--muted)}
.pill.ok{background:#e6f4ea;color:var(--ok)}.pill.bad{background:#fdecec;color:var(--bad)}.pill.warn{background:#fff4e0;color:var(--warn)}.pill.run{background:#e7edff;color:var(--brand)}
.err{background:#fdecec;color:var(--bad);border-radius:8px;padding:10px 14px;margin:0 0 14px}
.note{background:#eef6ff;border-radius:8px;padding:10px 14px;margin:10px 0;color:#284b8a}
table{border-collapse:collapse;width:100%}th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top;font-size:14px}
th{color:var(--muted);font-weight:600;font-size:13px}
.steps{display:flex;gap:8px;margin:0 0 22px;flex-wrap:wrap}
.steps a,.steps span{flex:1;min-width:140px;padding:10px 12px;border-radius:10px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--muted);text-decoration:none}
.steps .done{border-color:#b7dfc2;background:#f1faf3;color:var(--ok)}.steps .now{border-color:var(--brand);color:var(--ink);font-weight:600}
.steps b{display:block;font-size:12px;color:inherit;opacity:.8}
ol.how li{margin:6px 0}
.checklist .item{display:flex;gap:14px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line)}
.checklist .item:last-child{border:0}
.checklist .mark{width:26px;height:26px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;font-weight:700;background:#eef0f4;color:var(--muted)}
.checklist .mark.ok{background:#e6f4ea;color:var(--ok)}.checklist .mark.bad{background:#fdecec;color:var(--bad)}
.checklist .body{flex:1}.checklist .body small{color:var(--muted)}
.progress{height:8px;background:#eef0f4;border-radius:4px;overflow:hidden}.progress div{height:100%;background:var(--brand);width:30%;animation:slide 1.6s infinite ease-in-out}
@keyframes slide{0%{margin-left:-30%}100%{margin-left:100%}}
pre.log{background:#0f1320;color:#cfd6e6;padding:14px;border-radius:8px;max-height:320px;overflow:auto;font-size:12px}
.big{font-size:30px;font-weight:700}
.muted{color:var(--muted)}
footer{color:var(--muted);font-size:12px;text-align:center;padding:30px}
/* viewer */
body.viewer{height:100vh;overflow:hidden;background:#fff}
.vhead{display:flex;align-items:center;gap:14px;padding:8px 18px;border-bottom:3px solid var(--brand);background:#fff;height:56px}
.vhead img{height:34px}.vhead .t{font-weight:700}.vhead .s{color:var(--muted);font-size:13px}
#deck{position:absolute;top:56px;left:0;right:0;bottom:0}
.deck-wrap{display:flex;flex-direction:column;height:100%}
.deck-tabs{display:flex;gap:6px;padding:8px 14px;border-bottom:1px solid var(--line);background:#fafbfd;flex-wrap:wrap}
.deck-tabs button{background:#fff;color:var(--ink);border:1px solid #cfd4df;padding:6px 14px;font-weight:600;font-size:14px}
.deck-tabs button.on{background:var(--brand);border-color:var(--brand);color:#fff}
.deck-tabs .deck-tool{font-weight:500}
.deck-spacer{flex:1}
.deck-canvas{flex:1;position:relative}
.deck-msg{padding:40px;color:var(--muted)}