h1,h2,h3,p{margin:0}
.site-header{position:sticky;top:0;z-index:5;background:var(--header-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.site-header .inner{max-width:1200px;margin:0 auto;padding:12px 24px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:12px}
.brand-dots{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:3px;width:30px;height:30px}
.brand-dots span{border-radius:50%}
.brand-name{font-family:var(--display);font-weight:800;font-size:22px;letter-spacing:-.02em}
.brand-name span{color:var(--red)}
.main-nav{display:flex;flex-wrap:wrap;gap:4px}
.main-nav a{min-height:44px;display:inline-flex;align-items:center;padding:0 16px;border-radius:var(--pill);color:var(--muted);text-decoration:none;font-weight:500}
.main-nav a[aria-current]{background:var(--blue-tint);color:var(--link);font-weight:600}
.head-actions{display:flex;flex-wrap:wrap;gap:8px}

.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 18px;border-radius:var(--pill);border:0;font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{color:#fff}
.btn-ghost{background:var(--surface);color:var(--link);border:1px solid var(--border-strong)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{color:#fff}

main{max-width:1200px;margin:0 auto;padding:48px 24px 80px;display:flex;flex-direction:column;gap:40px}

.hero{display:flex;flex-wrap:wrap;gap:24px;align-items:stretch}
.hero-copy{flex:999 1 520px;min-width:0;display:flex;flex-direction:column;justify-content:center;gap:18px}
.eyebrow{display:inline-flex;align-self:flex-start;align-items:center;gap:10px;padding:6px 14px 6px 10px;border-radius:var(--pill);background:var(--surface);border:1px solid var(--border);font-size:13px;font-weight:600;color:var(--muted)}
.eyebrow .dots{display:flex;gap:4px}
.eyebrow .jb-dot{width:7px;height:7px;border-radius:50%}
.hero h1{font-size:clamp(40px,10vw,60px);line-height:1.04;letter-spacing:-.035em;font-weight:800}
.hero h1 .c-blue{color:var(--link)}
.hero h1 .c-red{color:var(--danger-text)}
.hero h1 .c-green{color:var(--success-text)}
.hero-sub{max-width:560px;color:var(--muted);font-size:17px}

.progress-card{flex:1 1 340px;min-width:0;position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:24px;display:flex;flex-direction:column;gap:20px;box-shadow:var(--shadow-card);animation-delay:.12s}
.deco{position:absolute;border-radius:50%}
.deco-a{right:-18px;top:-18px;width:72px;height:72px;background:var(--yellow-tint)}
.deco-b{right:54px;top:18px;width:14px;height:14px;background:var(--red);animation-delay:1.2s}
.ring-track{stroke:var(--track)}
.progress-top{position:relative;display:flex;align-items:center;gap:20px}
.ring-wrap{position:relative;width:112px;height:112px;flex-shrink:0}
.ring-wrap svg{transform:rotate(-90deg);display:block}
.ring-pct{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-family:var(--display);font-weight:800;font-size:22px}
.progress-text{display:flex;flex-direction:column;gap:2px;min-width:0}
.progress-text .lbl{color:var(--muted);font-size:13px;font-weight:500}
.progress-text .big{font-family:var(--display);font-size:34px;font-weight:800;letter-spacing:-.02em}
.progress-text .big small{color:var(--faint);font-size:20px;font-weight:600}
.progress-text .foot{color:var(--muted);font-size:13px}
.tiles{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.tile{border-radius:14px;padding:12px}
.tile .lbl{font-size:12px;font-weight:600}
.tile .num{font-family:var(--display);font-size:22px;font-weight:800}
.tile-yellow{background:var(--yellow-tint);color:var(--yellow-ink)}
.tile-green{background:var(--green-tint);color:var(--green-ink)}
.tile-blue{background:var(--blue-tint);color:var(--blue-ink)}

.sync-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);display:flex;flex-wrap:wrap;box-shadow:var(--shadow-card)}
.sync-left{flex:1 1 380px;min-width:0;padding:28px;display:flex;flex-direction:column;gap:16px;border-right:1px solid var(--border)}
.sync-right{flex:1 1 420px;min-width:0;padding:28px;display:flex;flex-direction:column;gap:18px;background:var(--surface-2)}
.sync-card h2{font-size:22px;font-weight:700}
.sync-card h3{font-size:18px;font-weight:700}
.muted-14{color:var(--muted);font-size:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--text-2)}
.field label i{width:8px;height:8px;border-radius:50%;flex:none}
.field input{min-height:46px;padding:0 16px;border-radius:var(--radius-input);border:1px solid var(--border-strong);background:var(--surface);color:var(--text);font:inherit}
.profiles{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--muted)}
.profiles a{min-height:32px;display:inline-flex;align-items:center;color:var(--blue-ink);background:var(--blue-tint);border-radius:var(--pill);padding:0 12px;text-decoration:none;font-weight:600}
.save-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.save-row .btn{padding:0 28px}
.status{white-space:pre-line;color:var(--text);font-weight:600;font-size:14px}
.status:empty{display:none}
kbd{font-family:var(--mono);font-size:12px;background:var(--surface);border:1px solid var(--border-strong);border-bottom-width:2px;border-radius:6px;padding:2px 6px;color:var(--text)}
.bm-row{display:flex;flex-wrap:wrap;gap:10px}
a.bmk{min-height:44px;display:inline-flex;align-items:center;gap:8px;padding:0 18px;border-radius:var(--pill);text-decoration:none;font-weight:700;font-size:14px;cursor:grab}
a.bmk svg{flex:none}
a.bmk-lc{background:var(--yellow);color:#202124}
a.bmk-lc:hover{color:#202124}
a.bmk-gfg{background:var(--success);color:#fff}
a.bmk-gfg:hover{color:#fff}
.steps{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:12px}
.steps li{display:flex;gap:12px;color:var(--text-2);font-size:14px}
.steps .n{flex-shrink:0;width:30px;height:30px;border-radius:50%;font-weight:700;display:flex;align-items:center;justify-content:center}
.steps .n-y{background:var(--yellow-tint);color:var(--yellow-ink)}
.steps .n-g{background:var(--green-tint);color:var(--green-ink)}
.steps a{color:var(--link)}
.info{background:var(--blue-tint);border-radius:16px;padding:14px 16px;display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--text-2)}
.info b{color:var(--link);font-weight:700}
.link-row{display:flex;flex-wrap:wrap;align-items:center;gap:0 20px;font-size:14px;font-weight:500}
.linkish{min-height:44px;display:inline-flex;align-items:center;padding:0;background:none;border:0;font:inherit;font-weight:500;color:var(--link);cursor:pointer;text-decoration:underline}
.linkish:hover{color:var(--link-hover)}
.linkish.danger{color:var(--danger-text)}
details.paste summary{min-height:44px;display:inline-flex;align-items:center;list-style:none;cursor:pointer;color:var(--link);text-decoration:underline}
details.paste summary::-webkit-details-marker{display:none}
details.paste[open] summary{margin-bottom:6px}
details.paste textarea{display:block;width:100%;border:1px solid var(--border-strong);border-radius:var(--radius-input);padding:10px 12px;background:var(--surface);color:var(--text);font:12px var(--mono)}
details.paste .linkish{margin-top:6px}

.topics-sec{display:flex;flex-direction:column;gap:20px}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}
.sec-head h2{font-size:30px;font-weight:800;letter-spacing:-.02em}
.tools{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.search{position:relative}
.search svg{color:var(--muted);position:absolute;left:16px;top:14px;pointer-events:none}
.search input{min-height:46px;width:280px;max-width:100%;padding:0 16px 0 44px;border-radius:var(--pill);border:1px solid var(--border-strong);background:var(--surface);color:var(--text);font:inherit}
.segmented{display:flex;background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--pill);padding:4px;gap:4px}
.jb-seg{min-height:38px;min-width:44px;padding:0 18px;border-radius:var(--pill);border:0;font:inherit;font-weight:600;font-size:14px;cursor:pointer;background:transparent;color:var(--muted)}
.jb-seg[aria-pressed="true"]{color:#fff}
.jb-seg[data-f="all"][aria-pressed="true"]{background:var(--primary);box-shadow:0 4px 12px -4px var(--primary)}
.jb-seg[data-f="todo"][aria-pressed="true"]{background:var(--danger);box-shadow:0 4px 12px -4px var(--danger)}
.jb-seg[data-f="done"][aria-pressed="true"]{background:var(--success);box-shadow:0 4px 12px -4px var(--success)}

.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.topic-card{--fg:var(--blue-ink);--bg:var(--blue-tint);--hue:var(--blue);display:flex;flex-direction:column;gap:14px;padding:17px;min-height:44px;border-radius:var(--radius-tile);border:2px solid transparent;background:var(--surface);text-decoration:none;color:var(--text);box-shadow:0 0 0 1px var(--border)}
.topic-card.h1{--fg:var(--red-ink);--bg:var(--red-tint);--hue:var(--red)}
.topic-card.h2{--fg:var(--yellow-ink);--bg:var(--yellow-tint);--hue:var(--yellow)}
.topic-card.h3{--fg:var(--green-ink);--bg:var(--green-tint);--hue:var(--green)}
.topic-card:hover{color:var(--text);border-color:var(--link)}
.topic-card[aria-current="true"],.topic-card[aria-current="true"]:hover{border-color:var(--hue);box-shadow:0 10px 24px -14px var(--hue)}
.topic-card.hidden{display:none}
.topic-card .top{display:flex;justify-content:space-between;align-items:center}
.topic-card .badge{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-family:var(--display);font-weight:800;font-size:14px;background:var(--bg);color:var(--fg)}
.topic-card .meta{font-size:12px;font-weight:600;color:var(--muted)}
.topic-card[aria-current="true"] .meta{color:var(--fg)}
.topic-card .name{font-family:var(--display);font-size:17px;font-weight:700}
.track{height:8px;border-radius:4px;background:var(--track);overflow:hidden}
.track > i{display:block;height:8px;border-radius:4px;background:var(--hue);width:0}

.list-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;box-shadow:0 1px 2px rgba(60,64,67,.06)}
.list-head{padding:20px 24px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--border)}
.list-title{display:flex;flex-direction:column;gap:8px;min-width:240px;flex:1 1 240px}
.list-title .line{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.list-title h2{font-size:24px;font-weight:800}
.list-title .cnt{font-size:14px;font-weight:600;color:var(--success-text)}
.list-title .track{height:6px;max-width:360px;border-radius:3px}
.list-title .track > i{height:6px;border-radius:3px;background:var(--green)}
.scroll-x{overflow-x:auto}
.list-body{min-width:560px}
.pg-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 24px;background:var(--surface-2);border-bottom:1px solid var(--border);font-family:var(--display);font-weight:700;font-size:14px;color:var(--text-2)}
.pg-head small{font-family:'DM Sans',sans-serif;font-weight:600;color:var(--success-text);margin-left:8px}
.pg-head a{min-height:44px;display:inline-flex;align-items:center;font-family:'DM Sans',sans-serif;font-size:13px;font-weight:600;color:var(--red-ink);text-decoration:none}
.pg-head a:hover{text-decoration:underline;color:var(--red-ink)}
.plist{margin:0;padding:0;list-style:none}
.jb-row{display:flex;align-items:center;gap:16px;padding:8px 24px;border-bottom:1px solid var(--track)}
.check{flex:none;width:44px;height:44px;margin:-8px -8px -8px -8px;padding:0;background:none;border:0;cursor:pointer;display:flex;align-items:center;justify-content:center}
.check .box{width:28px;height:28px;border-radius:50%;background:var(--surface);border:2px solid var(--check-border);display:flex;align-items:center;justify-content:center;transition:background-color .2s,border-color .2s}
.check[aria-pressed="true"] .box{background:var(--green);border-color:var(--green)}
.check svg{opacity:0}
.check[aria-pressed="true"] svg{opacity:1}
.idx{width:28px;flex:none;font-family:var(--mono);font-size:12px;color:var(--muted)}
.ptitle{flex:1;min-width:0;font-weight:500;color:var(--text);text-decoration:none;transition:color .25s}
.ptitle:hover{color:var(--link);text-decoration:underline}
.jb-row.solved .ptitle{color:var(--muted);text-decoration:line-through;text-decoration-color:var(--check-border)}
.plats{display:flex;gap:6px;flex-shrink:0}
.plat{position:relative;font-size:12px;font-weight:700;padding:5px 12px;border-radius:var(--pill);text-decoration:none;white-space:nowrap}
.plat::after{content:"";position:absolute;inset:-8px -2px}
.plat-lc{background:var(--yellow-tint);color:var(--yellow-ink)}
.plat-gfg{background:var(--green-tint);color:var(--green-ink)}
.plat-cc{background:var(--blue-tint);color:var(--blue-ink)}
.plat-lc:hover{color:var(--yellow-ink)}
.plat-gfg:hover{color:var(--green-ink)}
.plat-cc:hover{color:var(--blue-ink)}
.empty{padding:48px 24px;text-align:center;color:var(--muted)}

.site-footer{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;color:var(--muted);font-size:13px;border-top:1px solid var(--border);padding-top:24px}
.site-footer .plats-note{display:flex;gap:8px;align-items:center;font-weight:600}
.site-footer .c-y{color:var(--yellow-ink)}
.site-footer .c-g{color:var(--green-ink)}
.site-footer .c-b{color:var(--blue-ink)}

@media (max-width:640px){
  main{padding:32px 16px 64px}
  .site-header .inner{padding:12px 16px}
  .sync-left,.sync-right{padding:20px}
  .sync-left{border-right:0;border-bottom:1px solid var(--border)}
  .list-head{padding:16px}
  .jb-row{padding:8px 16px}
  .pg-head{padding:10px 16px}
}


.icon-btn{width:44px;padding:0}
body:has(dialog[open]){overflow:hidden}
dialog.sync-dialog{border:0;padding:0;margin:auto;background:transparent;color:var(--text);width:calc(100% - 32px);max-width:1040px;max-height:calc(100vh - 32px);overflow:auto}
dialog.sync-dialog[open]{animation:jbUp .35s var(--ease) both}
dialog.sync-dialog::backdrop{background:rgba(20,21,24,.55);backdrop-filter:blur(3px)}
.sync-card{position:relative;overflow:hidden}
.dialog-close{position:absolute;top:12px;right:12px;z-index:1;width:44px;height:44px;border-radius:50%;border:0;background:var(--track);color:var(--text-2);cursor:pointer;display:flex;align-items:center;justify-content:center}
.brand-logo{display:block}