:root{color-scheme:dark;--bg: #04060d;--surface: #0a1123;--surface-2: #0f1a33;--ink: #e9eef8;--ink-soft: #8ea3c9;--border: #1f2e50;--accent: #4c84ff;--accent-ink: #ffffff;--accent-soft: #12203f;--ok: #34d399;--warn: #fbbf24;--err: #f87171;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--radius: 12px;--radius-sm: 8px;--shadow: 0 1px 2px rgba(0, 0, 0, .5), 0 10px 30px rgba(0, 0, 0, .45);--maxw: 1080px}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;font-family:var(--font);background-color:var(--bg);background-image:radial-gradient(1100px 520px at 50% -10%,#112449,#11244900 60%),radial-gradient(900px 480px at 100% 0%,#0a1a38,#0a1a3800 55%);background-attachment:fixed;background-repeat:no-repeat;color:var(--ink);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;display:flex;flex-direction:column;min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{line-height:1.25;color:var(--ink);margin:0 0 .5em}h1{font-size:clamp(1.7rem,4vw,2.4rem)}h2{font-size:1.4rem}h3{font-size:1.1rem}p{margin:0 0 1em}.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(16px,4vw,28px)}.site-header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--border)}.site-header .bar{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px}.brand{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:1.15rem;color:var(--ink);letter-spacing:-.02em}.brand:hover{text-decoration:none}.brand .logo{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--accent);color:var(--accent-ink);font-size:1rem}.brand .tld{color:var(--accent)}.nav{display:flex;align-items:center;gap:20px}.nav a{color:var(--ink-soft);font-weight:600;font-size:.95rem}.nav a:hover{color:var(--ink);text-decoration:none}.search{position:relative;flex:1;max-width:420px;min-width:0}.search input{width:100%;padding:8px 14px;font-family:inherit;font-size:.95rem;color:var(--ink);background:var(--surface-2);border:1px solid var(--border);border-radius:999px}.search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.search-results{position:absolute;top:calc(100% + 6px);left:0;right:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow);z-index:40;max-height:62vh;overflow-y:auto}.search-results a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;color:var(--ink);font-size:.92rem;border-bottom:1px solid var(--border)}.search-results a:last-child{border-bottom:none}.search-results a:hover{background:var(--surface-2);text-decoration:none}.sr-cat{color:var(--ink-soft);font-size:.76rem;white-space:nowrap}.sr-empty{padding:12px 14px;color:var(--ink-soft);font-size:.9rem}.wordlist{display:flex;flex-wrap:wrap;gap:8px}.wordchip{display:inline-block;background:var(--surface-2);border:1px solid var(--border);color:var(--ink);padding:5px 12px;border-radius:999px;font-size:.9rem;cursor:pointer}.wordchip:hover{border-color:var(--accent);color:var(--accent)}.site-footer{margin-top:auto;border-top:1px solid var(--border);background:var(--surface);color:var(--ink-soft);font-size:.9rem}.site-footer .cols{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center;justify-content:space-between;padding-block:24px}.site-footer a{color:var(--ink-soft)}.site-footer a:hover{color:var(--ink)}.site-footer .links{display:flex;gap:18px;flex-wrap:wrap}.hero{text-align:center;padding-block:clamp(36px,7vw,72px)}.hero p.lead{font-size:1.15rem;color:var(--ink-soft);max-width:620px;margin-inline:auto}.badge-row{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:18px}.pill{display:inline-flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--border);color:var(--ink-soft);padding:6px 12px;border-radius:999px;font-size:.85rem;font-weight:600}.cat-block{margin-block:40px}.cat-head{display:flex;align-items:baseline;gap:10px;margin-bottom:4px}.cat-head .icon{font-size:1.3rem}.cat-head h2{margin:0}.cat-block>p{color:var(--ink-soft);margin-top:0}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin-top:16px}.card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);transition:transform .12s ease,border-color .12s ease}.card:hover{text-decoration:none;transform:translateY(-2px);border-color:var(--accent)}.card h3{margin:0 0 6px;color:var(--ink)}.card p{margin:0;color:var(--ink-soft);font-size:.92rem}.card .tag{display:inline-block;margin-top:12px;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--accent)}.breadcrumb{font-size:.85rem;color:var(--ink-soft);padding-top:20px}.breadcrumb a{color:var(--ink-soft)}.tool-head{padding-block:8px 4px}.tool-head p.desc{font-size:1.1rem;color:var(--ink-soft);margin-top:0}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-block:18px}.field{margin-bottom:14px}.field:last-child{margin-bottom:0}label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px;color:var(--ink)}.hint{font-size:.82rem;color:var(--ink-soft);font-weight:400}input[type=text],input[type=number],input[type=date],input[type=datetime-local],input[type=password],select,textarea{width:100%;font-family:inherit;font-size:1rem;color:var(--ink);background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px;transition:border-color .12s ease,box-shadow .12s ease}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}textarea{min-height:160px;resize:vertical;font-family:var(--mono);font-size:.92rem;line-height:1.5}textarea.mono,input.mono{font-family:var(--mono)}.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;font-family:inherit;font-size:.95rem;font-weight:600;cursor:pointer;border:1px solid var(--border);background:var(--surface-2);color:var(--ink);border-radius:var(--radius-sm);padding:9px 16px;transition:background .12s ease,border-color .12s ease,transform .05s ease}.btn:hover{border-color:var(--accent)}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn-primary:hover{filter:brightness(1.05)}.btn-group{display:flex;flex-wrap:wrap;gap:10px}.btn.sm{padding:6px 11px;font-size:.85rem}.seg{display:inline-flex;background:var(--surface-2);border:1px solid var(--border);border-radius:999px;padding:3px;gap:3px;flex-wrap:wrap}.seg button{border:none;background:transparent;color:var(--ink-soft);font-family:inherit;font-weight:600;font-size:.88rem;padding:6px 14px;border-radius:999px;cursor:pointer}.seg button[aria-pressed=true]{background:var(--accent);color:var(--accent-ink)}.result{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px;font-family:var(--mono);font-size:.95rem;white-space:pre-wrap;word-break:break-word;overflow-x:auto}.result.big{font-size:1.5rem;font-weight:700;color:var(--accent)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px}.stat{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px;text-align:center}.stat .num{font-size:1.6rem;font-weight:800;color:var(--ink)}.stat .lbl{font-size:.8rem;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.03em}.msg{font-size:.9rem;margin-top:8px;min-height:1.2em}.msg.err{color:var(--err)}.msg.ok{color:var(--ok)}table.data{width:100%;border-collapse:collapse;font-size:.92rem}table.data th,table.data td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}table.data th{color:var(--ink-soft);font-weight:600}.prose{max-width:720px}.prose h2{margin-top:32px}.section-title{margin-top:40px;margin-bottom:8px}ol.steps{padding-left:20px;color:var(--ink)}ol.steps li{margin-bottom:8px}.faq details{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);padding:4px 16px;margin-bottom:10px}.faq summary{cursor:pointer;font-weight:600;padding:12px 0;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary:before{content:"＋ ";color:var(--accent);font-weight:700}.faq details[open] summary:before{content:"－ "}.faq details>p{color:var(--ink-soft);margin-top:0;padding-bottom:8px}.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}.ad-slot{display:flex;align-items:center;justify-content:center;min-height:90px;margin-block:20px;border:1px dashed var(--border);border-radius:var(--radius-sm);color:var(--ink-soft);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;background:repeating-linear-gradient(45deg,transparent,transparent 10px,color-mix(in srgb,var(--border) 30%,transparent) 10px,color-mix(in srgb,var(--border) 30%,transparent) 20px)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.muted{color:var(--ink-soft)}mark{background:var(--accent);color:var(--accent-ink);border-radius:3px;padding:0 3px}.mt-0{margin-top:0}.center{text-align:center}.swatch{width:100%;height:72px;border-radius:var(--radius-sm);border:1px solid var(--border)}@media(max-width:560px){.nav{gap:14px}.nav .hide-sm{display:none}}