:root{--bg:#f6f7fb;--surface:#fff;--surface2:#eef1f7;--text:#172033;--muted:#5f6b7c;--line:#dce1ea;--primary:#5b35d5;--primary2:#3c1cae;--accent:#ff7a3d;--good:#16794d;--warn:#9a5b00;--bad:#b42318;--shadow:0 14px 36px rgba(30,35,70,.09);--radius:18px;color-scheme:light}
:root[data-theme="dark"]{--bg:#0f1220;--surface:#181d2f;--surface2:#232a40;--text:#f2f4ff;--muted:#b5bed1;--line:#333b56;--primary:#9b82ff;--primary2:#c6b8ff;--accent:#ff9a6b;--good:#58d39b;--warn:#ffc46b;--bad:#ff8a82;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.58 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}a{color:var(--primary);text-decoration-thickness:.08em;text-underline-offset:.18em}a:hover{color:var(--primary2)}button,input,select,textarea{font:inherit}button,.btn{border:0;border-radius:12px;background:var(--primary);color:#fff;padding:.78rem 1.05rem;font-weight:750;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:.45rem;text-decoration:none;min-height:44px}.btn:hover,button:hover{filter:brightness(1.05);color:#fff}.secondary{background:var(--surface2);color:var(--text);border:1px solid var(--line)}.danger{background:var(--bad)}.small-btn{padding:.42rem .7rem;min-height:36px;font-size:.9rem}.wrap{width:min(1160px,calc(100% - 32px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:999;background:#fff;padding:10px}.site-header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.header-row{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:18px}.logo{display:inline-flex;align-items:center;gap:.65rem;font-weight:900;color:var(--text);text-decoration:none;font-size:1.16rem}.logo-mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--accent));color:white;font-size:1.1rem}.nav-list{display:flex;gap:8px;list-style:none;margin:0;padding:0}.nav-list a{display:block;padding:.55rem .7rem;border-radius:10px;color:var(--text);text-decoration:none}.nav-list a:hover{background:var(--surface2)}.header-actions{display:flex;gap:8px}.icon-btn{width:42px;height:42px;padding:0;border-radius:11px;background:var(--surface2);color:var(--text);border:1px solid var(--line);text-decoration:none;display:grid;place-items:center}.menu-btn{display:none}.hero{padding:72px 0 52px;background:radial-gradient(circle at 80% 15%,color-mix(in srgb,var(--accent) 22%,transparent),transparent 32%),radial-gradient(circle at 10% 0%,color-mix(in srgb,var(--primary) 20%,transparent),transparent 32%)}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:42px;align-items:center}.eyebrow{display:inline-flex;border:1px solid color-mix(in srgb,var(--primary) 40%,var(--line));background:color-mix(in srgb,var(--primary) 8%,var(--surface));padding:.33rem .62rem;border-radius:99px;color:var(--primary);font-size:.88rem;font-weight:800}.hero h1{font-size:clamp(2.2rem,5vw,4.55rem);line-height:1.02;letter-spacing:-.045em;margin:.55rem 0 1rem}.lead{font-size:1.15rem;color:var(--muted);max-width:72ch}.actions{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.hero-card,.card,.tool-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero-card,.tool-panel{padding:24px}.hero-card h2,.tool-panel h1{margin-top:0}.badge{display:inline-flex;gap:.4rem;align-items:center;background:var(--surface2);border:1px solid var(--line);padding:.4rem .65rem;border-radius:99px;color:var(--muted);font-size:.92rem}.section{padding:58px 0}.section.compact{padding:34px 0}.section h2{font-size:clamp(1.7rem,3vw,2.5rem);letter-spacing:-.025em;margin:.1rem 0 .65rem}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{padding:22px}.card h3{margin:.35rem 0 .45rem;font-size:1.18rem}.card p{color:var(--muted);margin:.25rem 0}.card-icon{width:44px;height:44px;border-radius:13px;background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 18%,var(--surface)),color-mix(in srgb,var(--accent) 22%,var(--surface)));display:grid;place-items:center;font-weight:900;color:var(--primary);font-size:1.2rem}.tool-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr);gap:22px;align-items:start}.field{display:grid;gap:6px;margin-bottom:14px}.field label{font-weight:750}.field small{color:var(--muted)}input,select,textarea{width:100%;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:11px;padding:.72rem .8rem;min-height:44px}textarea{min-height:100px;resize:vertical}input:focus,select:focus,textarea:focus,button:focus-visible,a:focus-visible{outline:3px solid color-mix(in srgb,var(--primary) 35%,transparent);outline-offset:2px}.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.form-row.three{grid-template-columns:repeat(3,minmax(0,1fr))}.result-box{background:linear-gradient(145deg,color-mix(in srgb,var(--primary) 9%,var(--surface)),var(--surface));border:1px solid color-mix(in srgb,var(--primary) 30%,var(--line));border-radius:15px;padding:18px;margin-top:18px}.result-main{font-size:clamp(1.8rem,4vw,3rem);font-weight:900;letter-spacing:-.04em}.metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:14px}.metric{background:var(--surface2);border-radius:12px;padding:12px}.metric span{display:block;color:var(--muted);font-size:.84rem}.metric strong{font-size:1.1rem}.status{min-height:1.55em;color:var(--muted);margin:.7rem 0 0}.status.error{color:var(--bad)}.status.warn{color:var(--warn)}.status.good{color:var(--good)}.notice{border-left:4px solid var(--primary);background:var(--surface2);padding:14px 16px;border-radius:0 12px 12px 0}.notice.warn{border-color:var(--warn)}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px;margin-top:15px}table{border-collapse:collapse;width:100%;min-width:720px;background:var(--surface)}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:var(--surface2);font-size:.9rem}tr:last-child td{border-bottom:0}.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.chip-row{display:flex;gap:7px;flex-wrap:wrap}.chip{border:1px solid var(--line);background:var(--surface2);color:var(--text);border-radius:99px;padding:.38rem .62rem;min-height:auto;font-size:.9rem}.dropzone{border:2px dashed var(--line);border-radius:15px;padding:24px;text-align:center;background:var(--surface2)}.progress{height:12px;background:var(--surface2);border-radius:99px;overflow:hidden}.progress>span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--accent))}.ad-slot{border:1px dashed var(--line);border-radius:14px;min-height:90px;display:grid;place-items:center;color:var(--muted);margin-top:24px}.article{max-width:820px}.article h2{margin-top:2rem}.article h3{margin-top:1.4rem}.article li{margin:.4rem 0}.site-footer{border-top:1px solid var(--line);padding:44px 0 24px;background:var(--surface)}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}.footer-links{list-style:none;padding:0;margin:.6rem 0}.footer-links li{margin:.35rem 0}.muted{color:var(--muted)}.hidden{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:900px){.hero-grid,.tool-layout{grid-template-columns:1fr}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{padding-top:48px}.menu-btn{display:grid}.nav-list{display:none;position:absolute;left:16px;right:16px;top:62px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:10px;flex-direction:column}.nav-list.open{display:flex}.header-row nav{order:3}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.wrap{width:min(100% - 22px,1160px)}.hero h1{font-size:2.35rem}.grid,.grid.two,.form-row,.form-row.three,.footer-grid,.metric-grid{grid-template-columns:1fr}.header-row{gap:8px}.logo span:last-child{font-size:1rem}.hero-card,.tool-panel,.card{padding:17px}.section{padding:42px 0}.btn,button{width:100%}.icon-btn,.chip,.small-btn{width:auto}.toolbar .small-btn{flex:1}.header-actions{margin-left:auto}}