:root{--bg:#f7f8fc;--surface:#fff;--surface2:#f1f4fb;--ink:#101828;--muted:#667085;--line:#e4e7ec;--brand:#5b5cf6;--brand2:#08aeea;--ok:#079455;--bad:#d92d20;--warn:#dc6803;--shadow:0 18px 55px rgba(16,24,40,.08);--radius:24px}
[data-theme=dark]{--bg:#0b1020;--surface:#12182a;--surface2:#182036;--ink:#f8fafc;--muted:#a7b0c0;--line:#263247;--shadow:0 18px 55px rgba(0,0,0,.35)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Arial,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;z-index:9;background:var(--surface);padding:10px;border-radius:10px}.shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr auto}.topbar{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.top-inner{width:min(1180px,calc(100% - 28px));margin:auto;display:flex;align-items:center;gap:18px;justify-content:space-between;padding:15px 0}.brand{display:flex;align-items:center;gap:11px;font-weight:950;font-size:20px}.logo,.tool-icon{display:grid;place-items:center;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:white;font-weight:950;letter-spacing:-.04em}.logo{width:42px;height:42px}.tool-icon{width:48px;height:48px}.nav{display:flex;gap:4px;align-items:center;flex-wrap:wrap}.nav a{padding:10px 12px;border-radius:999px;color:var(--muted);font-weight:800}.nav a:hover,.nav a.active{background:var(--surface2);color:var(--ink)}.theme{border:1px solid var(--line);background:var(--surface);border-radius:999px;width:42px;height:42px}.container{width:min(1180px,calc(100% - 28px));margin:auto}.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;padding:64px 0 38px}.eyebrow{margin:0 0 10px;color:var(--brand);font-weight:950;text-transform:uppercase;letter-spacing:.15em;font-size:12px}.hero h1,.page-hero h1{font-size:clamp(38px,6vw,72px);line-height:.98;letter-spacing:-.055em;margin:0}.lead{font-size:clamp(17px,2vw,21px);line-height:1.65;color:var(--muted);max-width:760px}.search{display:flex;gap:10px;align-items:center;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px;padding:13px 15px;margin-top:24px}.search input{border:0;outline:0;background:transparent;width:100%}.btn{border:0;border-radius:15px;padding:13px 18px;font-weight:950;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff}.btn.ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line)}.hero-panel,.card,.tool-panel,.ad-slot{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:var(--radius)}.hero-panel{padding:20px;display:grid;gap:14px}.hero-stat{padding:18px;border-radius:18px;background:var(--surface2)}.hero-stat strong{display:block;font-size:24px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{padding:20px;transition:.18s transform,.18s border-color}.card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--brand) 45%,var(--line))}.card-head{display:flex;align-items:center;gap:13px}.card h3{margin:0;font-size:20px}.card p{color:var(--muted);line-height:1.55}.tag-row{display:flex;gap:8px;flex-wrap:wrap}.tag{font-size:12px;font-weight:850;color:var(--muted);background:var(--surface2);padding:7px 10px;border-radius:999px}.section{padding:30px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:16px}.section-head h2{margin:0;font-size:34px;letter-spacing:-.04em}.page-hero{padding:40px 0 18px}.breadcrumbs{display:flex;gap:8px;color:var(--muted);font-weight:800;margin-bottom:18px}.breadcrumbs a{color:var(--brand)}.tool-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:18px;align-items:start;padding:18px 0 42px}.tool-panel{padding:22px}.side{display:grid;gap:16px;position:sticky;top:88px}.ad-slot{min-height:250px;padding:20px;display:grid;place-items:center;text-align:center;color:var(--muted);background:repeating-linear-gradient(45deg,var(--surface),var(--surface) 10px,var(--surface2) 10px,var(--surface2) 20px)}.form-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;align-items:end}label{display:grid;gap:7px;color:var(--muted);font-weight:850;font-size:13px}input,select,textarea{width:100%;border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:12px 13px;outline:0}textarea{min-height:180px;resize:vertical;line-height:1.55}input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 14%,transparent)}.result{margin-top:16px;padding:18px;border-radius:18px;background:linear-gradient(135deg,color-mix(in srgb,var(--brand) 10%,var(--surface)),color-mix(in srgb,var(--brand2) 10%,var(--surface)));border:1px solid var(--line);overflow-wrap:anywhere}.result strong{display:block;font-size:clamp(22px,3vw,34px);letter-spacing:-.035em}.result small{display:block;color:var(--muted);margin-top:8px}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.actions button,.chip{border:1px solid var(--line);background:var(--surface);border-radius:13px;padding:10px 13px;font-weight:900}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:14px}.stat{background:var(--surface2);border-radius:16px;padding:13px}.stat strong{display:block;font-size:24px}.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}.footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);text-align:center}.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%) translateY(80px);background:#101828;color:#fff;border-radius:999px;padding:12px 16px;font-weight:900;transition:.2s;z-index:10}.toast.show{transform:translateX(-50%) translateY(0)}.hidden{display:none!important}.empty{color:var(--bad);font-weight:900}.gradient-preview{height:110px;border-radius:18px;border:1px solid var(--line);margin-top:14px}
@media(max-width:960px){.hero,.tool-layout{grid-template-columns:1fr}.side{position:static}.grid{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:1fr 1fr}.nav{display:none}}
@media(max-width:620px){.top-inner,.container{width:min(100% - 20px,1180px)}.hero{padding-top:38px}.grid,.form-grid,.two,.stats{grid-template-columns:1fr}.hero h1,.page-hero h1{font-size:40px}.tool-panel{padding:16px}.ad-slot{min-height:120px}}