@font-face{font-family:Outfit;src:url("./assets/fonts/Outfit%5Bwght%5D.ttf") format("truetype");font-style:normal;font-weight:100 900;font-display:block}
@font-face{font-family:"ComicShannsMono Nerd Font";src:url("./assets/fonts/ComicShannsMonoNerdFont-Regular.otf") format("opentype");font-style:normal;font-weight:400;font-display:block}
:root{
  --bg:#f6f7fb; --surface:#ffffff; --ink:#111827; --muted:#5b6475; --line:#dfe3ea;
  --accent:#5b4bdb; --accent-2:#7c3aed; --soft:#eeebff; --success:#0f766e; --danger:#b42318;
  --max:1120px; --radius:18px; --shadow:0 10px 30px rgba(17,24,39,.06)
}
html[data-theme="dark"]{
  --bg:#05070c; --surface:#0d111a; --ink:#f8fafc; --muted:#a7b0c0; --line:#252d3b;
  --soft:#171432; --shadow:0 14px 34px rgba(0,0,0,.48)
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#05070c; --surface:#0d111a; --ink:#f8fafc; --muted:#a7b0c0; --line:#252d3b;
    --soft:#171432; --shadow:0 14px 34px rgba(0,0,0,.48)
  }
}
*{box-sizing:border-box} html{scroll-behavior:smooth;color-scheme:light;scrollbar-color:var(--accent) var(--bg);scrollbar-width:thin} html[data-theme="dark"]{color-scheme:dark} body{margin:0;font-family:Outfit,ui-sans-serif,system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65}::-webkit-scrollbar{width:11px;height:11px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--accent);border:3px solid var(--bg);border-radius:999px}::-webkit-scrollbar-thumb:hover{background:var(--accent-2)}
a{color:inherit}.container{width:min(var(--max),calc(100% - 32px));margin:auto}
.page-loader{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;gap:12px;background:var(--bg);color:var(--muted);font-size:.9rem;font-weight:700;letter-spacing:.02em;opacity:1;visibility:visible;transition:opacity .24s ease,visibility .24s ease}.page-loader.is-hidden{opacity:0;visibility:hidden;pointer-events:none}.loader-mark{width:22px;height:22px;border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:loader-spin .8s linear infinite}@keyframes loader-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.page-loader{transition:none}.loader-mark{animation:none}}
.site-header{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--line)}@supports ((background:color-mix(in srgb,black 50%,white)) and (backdrop-filter:blur(1px))){.site-header{background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(10px)}}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:20px}.brand{font-weight:850;letter-spacing:-.03em;text-decoration:none;font-size:1.15rem}.brand span{color:var(--accent)}
.navlinks{display:flex;gap:20px;align-items:center;font-size:.95rem}.navlinks a{text-decoration:none;color:var(--muted)}.navlinks a:hover{color:var(--accent)}.menu-toggle{display:none;align-items:center;justify-content:center;flex-direction:column;gap:4px;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);cursor:pointer}.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:currentColor}.mobile-menu{width:min(360px,calc(100% - 24px));margin:70px 12px 0 auto;padding:0;border:1px solid var(--line);border-radius:18px;background:var(--surface);color:var(--ink);box-shadow:0 20px 60px rgba(0,0,0,.25)}.mobile-menu::backdrop{background:rgba(5,7,12,.48)}.mobile-menu-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}.menu-close{border:0;background:transparent;color:var(--muted);font-size:1.7rem;line-height:1;cursor:pointer}.mobile-menu-links{display:grid;gap:4px;padding:12px}.mobile-menu-links a{padding:13px 12px;border-radius:10px;color:var(--ink);text-decoration:none;font-weight:700}.mobile-menu-links a:hover,.mobile-menu-links a:focus-visible{background:var(--soft);color:var(--accent)}
.theme-toggle{display:inline-grid;place-items:center;width:40px;height:40px;border:1px solid var(--line);border-radius:50%;padding:0;background:var(--surface);color:var(--ink);cursor:pointer;transition:border-color .2s,transform .2s}.theme-toggle:hover{border-color:var(--accent);transform:translateY(-1px)}.theme-icon{width:19px;height:19px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8}.moon-icon{display:none}html[data-theme="dark"] .sun-icon{display:none}html[data-theme="dark"] .moon-icon{display:block}
main{padding:48px 0 72px}.hero{display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;padding:40px 0 28px}.eyebrow{display:inline-block;background:var(--soft);color:var(--accent);font-weight:750;font-size:.78rem;padding:6px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.08em}.hero h1{font-size:clamp(2.4rem,6vw,4.75rem);line-height:1.02;letter-spacing:-.055em;margin:18px 0}.hero p{font-size:1.12rem;color:var(--muted);max-width:62ch}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 16px;border-radius:12px;border:1px solid var(--line);font-weight:760;text-decoration:none;background:var(--surface);color:var(--ink);transition:border-color .2s,transform .2s}.btn.primary{background:var(--ink);color:var(--bg);border-color:var(--ink)}.btn:hover{border-color:var(--accent);transform:translateY(-1px)}
.hero-card{background:linear-gradient(160deg,#080a14,#17103d);color:#fff;border-radius:24px;padding:24px;box-shadow:var(--shadow);position:relative;overflow:hidden}.hero-card:before{content:"";position:absolute;width:220px;height:220px;border-radius:50%;background:#8b5cf6;opacity:.22;filter:blur(30px);top:-70px;right:-50px}.feature-list{position:relative;display:grid;gap:10px;margin:0;padding:0;list-style:none}.feature-list li{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1px solid rgba(255,255,255,.12);border-radius:14px;background:rgba(255,255,255,.06);color:#d9d4ff}.feature-list li:before{content:"✓";display:grid;place-items:center;width:22px;height:22px;border-radius:50%;background:rgba(139,92,246,.35);color:#fff;font-size:.8rem;font-weight:800}
.page-intro{max-width:720px;padding:48px 0 34px}.page-intro h1{font-size:clamp(2.5rem,6vw,4.4rem);line-height:1.04;letter-spacing:-.055em;margin:10px 0 16px}.page-intro p{font-size:1.12rem;color:var(--muted);max-width:62ch}.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;padding-bottom:72px}.guide-card{display:flex;flex-direction:column;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);text-decoration:none;transition:border-color .2s,transform .2s}.guide-card:hover{border-color:var(--accent);transform:translateY(-3px)}.guide-card-art{min-height:150px;background:var(--bg);overflow:hidden}.guide-card-art img{display:block;width:100%;height:100%;min-height:150px;object-fit:cover}.guide-card-body{display:flex;flex:1;flex-direction:column;padding:22px}.guide-card-body h2{margin:7px 0 9px;font-size:1.35rem;letter-spacing:-.03em}.guide-card-body p{margin:0;color:var(--muted)}.guide-card-link{margin-top:auto;padding-top:20px;color:var(--accent);font-weight:800}.section-cta{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:32px;margin-bottom:72px}.section-cta p{margin:0;color:var(--muted)}
.section{margin-top:72px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:22px}.section h2{font-size:2rem;letter-spacing:-.035em;margin:0}.section-head p{margin:0;color:var(--muted);max-width:58ch}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}.card-link{text-decoration:none;display:flex;height:100%}.card{display:flex;flex-direction:column;width:100%;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.card h3{margin:4px 0 8px;font-size:1.1rem;letter-spacing:-.02em}.card p{margin:0;color:var(--muted);font-size:.95rem}.kicker{font-size:.75rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--accent)}.card-link:hover .card{border-color:var(--accent)}.meta{margin-top:auto;padding-top:14px;color:var(--muted);font-size:.84rem}
.ad-slot{border:1px dashed var(--line);min-height:110px;display:grid;place-items:center;color:var(--muted);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;background:var(--surface);border-radius:16px}.ad-slot strong{color:var(--muted)}
.article,.tool-wrap{max-width:820px;margin:auto}.article h1,.tool-wrap h1{font-size:clamp(2.2rem,5vw,3.7rem);line-height:1.08;letter-spacing:-.05em;margin:10px 0 16px}.article .lead,.tool-wrap .lead{font-size:1.14rem;color:var(--muted)}.article h2{font-size:1.55rem;letter-spacing:-.03em;margin-top:36px}.article h3{font-size:1.15rem;margin-top:26px}.article p,.article li{color:var(--muted)}.article code{background:var(--soft);border:1px solid color-mix(in srgb,var(--accent) 25%,var(--line));border-radius:6px;padding:2px 5px;font-family:"ComicShannsMono Nerd Font",monospace;font-size:.92em}.article pre{position:relative;background:#111827;color:#e9edf5;padding:22px 18px 18px;border:1px solid #303b56;border-radius:14px;overflow:auto;font-family:"ComicShannsMono Nerd Font",monospace;box-shadow:inset 4px 0 var(--accent),0 8px 20px rgba(15,23,42,.14)}.formula{border:1px solid color-mix(in srgb,var(--accent) 35%,var(--line));border-left:5px solid var(--accent);border-radius:12px;box-shadow:0 8px 20px rgba(91,75,219,.12);padding:18px;background:var(--soft);color:var(--ink)}
.tool-shell{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:26px;box-shadow:var(--shadow);margin-top:28px}.fields{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.field label{font-weight:750;font-size:.9rem;display:block;margin-bottom:7px}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 13px;font:inherit;background:var(--surface);color:var(--ink);transition:border-color .2s,box-shadow .2s}.field input[type="number"]{appearance:textfield;-moz-appearance:textfield}.field input[type="number"]::-webkit-inner-spin-button,.field input[type="number"]::-webkit-outer-spin-button{-webkit-appearance:none;appearance:none;margin:0}.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 18%,transparent)}.field select{appearance:none;padding-right:42px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235b4bdb' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;cursor:pointer}.field textarea{min-height:220px;resize:vertical}.field-error{display:block;color:var(--danger);font-size:.8rem;margin-top:6px}.tool-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.result{margin-top:20px;padding:18px;border-radius:16px;background:var(--soft);border:1px solid var(--line)}.result strong{font-size:1.7rem;display:block;letter-spacing:-.03em}.result p{margin:2px 0;color:var(--muted)}.result-status{font-size:.8rem!important;color:var(--accent)!important;margin-top:8px!important}.formula{font-family:"ComicShannsMono Nerd Font",monospace;background:var(--soft);color:var(--ink);padding:18px;border-radius:12px;overflow:auto}.notice{margin-top:18px;padding:14px 16px;border-radius:12px;background:var(--surface);border:1px solid var(--line);color:var(--muted);font-size:.9rem}.status{min-height:24px;font-size:.86rem;color:var(--danger);margin-top:8px}
.formula .syntax-name{color:#7c3aed}.formula .syntax-number{color:#0f766e}.formula .syntax-operator{color:#c2410c;font-weight:700}.formula .syntax-bracket{color:#2563eb;font-weight:700}html[data-theme="dark"] .formula .syntax-name{color:#c4b5fd}html[data-theme="dark"] .formula .syntax-number{color:#5eead4}html[data-theme="dark"] .formula .syntax-operator{color:#fdba74}html[data-theme="dark"] .formula .syntax-bracket{color:#93c5fd}.notice{margin-top:18px;padding:14px 16px;border-radius:12px;background:var(--surface);border:1px solid var(--line);color:var(--muted);font-size:.9rem}.status{min-height:24px;font-size:.86rem;color:var(--danger);margin-top:8px}
.custom-select{position:relative}.custom-select select{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.select-trigger{display:flex;align-items:center;justify-content:space-between;width:100%;border:1px solid var(--line);border-radius:14px;padding:12px 14px;background:var(--surface);color:var(--ink);font:inherit;text-align:left;cursor:pointer;transition:border-color .2s,box-shadow .2s}.select-trigger:hover,.select-trigger[aria-expanded="true"]{border-color:var(--accent)}.select-trigger[aria-expanded="true"]{box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 18%,transparent)}.select-trigger span{color:var(--accent);font-size:1.2rem;line-height:1;transition:transform .2s}.select-trigger[aria-expanded="true"] span{transform:rotate(180deg)}.select-options{display:none;position:absolute;z-index:10;top:calc(100% + 8px);left:0;right:0;margin:0;padding:6px;list-style:none;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:0 16px 36px rgba(0,0,0,.22)}.select-options.is-open{display:block}.select-option{padding:10px 12px;border-radius:10px;color:var(--muted);cursor:pointer}.select-option:hover,.select-option[aria-selected="true"],.select-option[data-active="true"]{background:var(--soft);color:var(--ink)}.select-option[aria-selected="true"]{font-weight:700}
.footer{border-top:1px solid var(--line);padding:28px 0 50px;color:var(--muted)}.footer-grid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}.footer a{color:var(--muted);text-decoration:none}.footer a:hover{color:var(--ink)}
.badge{display:inline-flex;padding:5px 8px;border-radius:999px;background:var(--soft);color:var(--muted);font-size:.76rem;font-weight:700;margin-right:6px}.toc{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;margin:26px 0}.toc a{display:block;padding:4px 0;color:var(--accent);text-decoration:none}.note-box{border-left:4px solid var(--success);background:var(--soft);padding:14px 16px;border-radius:8px;margin:20px 0}.muted{color:var(--muted)}
.article table{border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;border:1px solid var(--line);box-shadow:0 4px 12px rgba(0,0,0,.03);background:var(--surface);margin:1.5rem 0;width:100%}.article th{background:var(--bg);color:var(--muted);font-weight:600;padding:14px 18px;border-bottom:1px solid var(--line);text-align:left}.article td{padding:14px 18px;border-bottom:1px solid var(--line);color:var(--ink)}.article tr:last-child td{border-bottom:none}.article tbody tr:hover td{background:var(--soft)}.table-wrap{overflow-x:auto}.callout{border-left:4px solid currentColor;padding:.6rem 1rem;margin:1.2rem 0;background:rgba(128,128,128,.1)}
@media(max-width:900px){.hero{grid-template-columns:1fr}.grid{grid-template-columns:1fr 1fr}}@media(max-width:640px){.container{width:min(var(--max),calc(100% - 24px))}.nav{min-height:60px;gap:10px}.navlinks{display:none}.menu-toggle{display:flex;margin-left:auto}.theme-toggle{width:36px;height:36px}.fields{grid-template-columns:1fr}.grid{grid-template-columns:1fr}.hero h1{font-size:2.6rem}.hero{padding-top:24px}.tool-shell{padding:18px}.section{margin-top:52px}.section-head{display:block}.section-head p{margin-top:10px}.guide-grid{grid-template-columns:1fr}.page-intro{padding-top:30px}.page-intro h1{font-size:2.65rem}.section-cta{margin-top:24px;margin-bottom:52px}}
@media(min-width:901px){#tools .card{min-height:220px}}
@supports not (width:min(1120px,calc(100% - 32px))){.container{width:calc(100% - 32px)}}