:root{
  --bg:#f7f8fc;--surface:#ffffff;--surface-2:#eef1ff;--text:#172033;--muted:#667085;
  --primary:#5b5ce2;--primary-2:#7c3aed;--accent:#16b8a6;--border:#dfe3ee;
  --danger:#c7354b;--success:#087f5b;--warning:#9a6700;--shadow:0 18px 50px rgba(23,32,51,.10);
  --radius:18px;--radius-sm:12px;--max:1180px;--font:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
[data-theme="dark"]{--bg:#0d1120;--surface:#151a2b;--surface-2:#202641;--text:#f5f7ff;--muted:#aab2c8;--border:#303851;--shadow:0 18px 50px rgba(0,0,0,.28)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65}
body.no-scroll{overflow:hidden}a{color:inherit;text-decoration:none}img,svg{max-width:100%}button,input,textarea,select{font:inherit}
button{cursor:pointer}.container{width:min(calc(100% - 32px),var(--max));margin-inline:auto}.section{padding:88px 0}.section-sm{padding:56px 0}
.announcement{background:linear-gradient(90deg,#3437b8,#6d28d9);color:white;text-align:center;padding:9px 16px;font-size:.9rem}
.site-header{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav{height:72px;display:flex;align-items:center;gap:28px}.logo{display:inline-flex;align-items:center;gap:10px;font-weight:850;letter-spacing:-.03em}
.logo-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--primary),var(--primary-2));display:grid;place-items:center;color:#fff;box-shadow:0 8px 24px rgba(91,92,226,.28)}
.nav-links{display:flex;align-items:center;gap:24px;margin-left:auto}.nav-links a{color:var(--muted);font-weight:650;font-size:.94rem}.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--text)}
.nav-actions{display:flex;align-items:center;gap:10px}.menu-toggle{display:none;border:0;background:transparent;color:var(--text);font-size:1.5rem}.theme-toggle{width:42px;height:42px;border:1px solid var(--border);border-radius:12px;background:var(--surface);color:var(--text)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:12px;border:1px solid transparent;font-weight:750;transition:.2s ease}
.btn:hover{transform:translateY(-1px)}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 30px rgba(91,92,226,.25)}
.btn-secondary{background:var(--surface);border-color:var(--border);color:var(--text)}.btn-ghost{background:transparent;color:var(--muted)}.btn-block{width:100%}
.hero{padding:92px 0 72px;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.eyebrow{display:inline-flex;gap:8px;align-items:center;color:var(--primary);font-weight:800;font-size:.82rem;text-transform:uppercase;letter-spacing:.12em}
h1,h2,h3{line-height:1.12;margin:0 0 18px;letter-spacing:-.035em}h1{font-size:clamp(2.7rem,6vw,5.25rem)}h2{font-size:clamp(2rem,4vw,3.4rem)}h3{font-size:1.25rem}
.lead{font-size:1.16rem;color:var(--muted);max-width:700px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 22px}.microcopy{color:var(--muted);font-size:.9rem}
.gradient-text{background:linear-gradient(135deg,var(--primary),var(--primary-2),var(--accent));-webkit-background-clip:text;color:transparent}
.mockup{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:16px;box-shadow:var(--shadow);position:relative}.mockup:before{content:"";position:absolute;inset:-80px -100px auto auto;width:240px;height:240px;background:radial-gradient(circle,rgba(124,58,237,.25),transparent 70%);z-index:-1}
.window-bar{display:flex;gap:7px;padding:7px 5px 15px}.dot{width:9px;height:9px;border-radius:50%;background:var(--border)}.mockup-body{display:grid;grid-template-columns:150px 1fr;min-height:430px;border-radius:15px;overflow:hidden;background:var(--bg)}
.mock-sidebar{padding:18px;background:#202445;color:#d7dcff}.mock-sidebar div{padding:9px;border-radius:9px;margin-bottom:6px;font-size:.76rem}.mock-sidebar .active{background:#5b5ce2;color:white}.mock-main{padding:24px}
.chip{display:inline-flex;padding:6px 10px;border-radius:999px;background:var(--surface-2);color:var(--primary);font-weight:700;font-size:.78rem}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stat,.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.stat strong{display:block;font-size:1.8rem}.stat span,.muted{color:var(--muted)}
.section-head{max-width:760px;margin-bottom:40px}.section-head.center{text-align:center;margin-inline:auto;margin-bottom:48px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.icon{width:44px;height:44px;border-radius:13px;background:var(--surface-2);display:grid;place-items:center;color:var(--primary);font-weight:900;margin-bottom:20px}
.steps{counter-reset:step}.step{position:relative;padding-left:68px}.step:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;display:grid;place-items:center;font-weight:850}
.band{background:linear-gradient(135deg,#252763,#5b21b6);color:white;border-radius:28px;padding:54px}.band p{color:#dfe2ff}
.tool-shell{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px}.form-card,.output-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.field{margin-bottom:16px}.field label{display:block;font-weight:750;margin-bottom:7px}.field input,.field textarea,.field select{width:100%;border:1px solid var(--border);border-radius:11px;background:var(--bg);color:var(--text);padding:12px 13px;outline:none}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(91,92,226,.14)}textarea{min-height:112px;resize:vertical}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.actions{display:flex;gap:10px;flex-wrap:wrap}.output-toolbar{display:flex;justify-content:space-between;gap:14px;align-items:center;border-bottom:1px solid var(--border);padding-bottom:16px;margin-bottom:18px}.output{white-space:pre-wrap;min-height:430px}.status{min-height:24px;color:var(--muted);font-size:.9rem}
.pricing-toggle{display:flex;justify-content:center;align-items:center;gap:12px;margin-bottom:36px}.switch{width:54px;height:30px;border:0;border-radius:999px;background:var(--border);padding:3px}.switch span{display:block;width:24px;height:24px;border-radius:50%;background:white;transition:.2s}.switch.on{background:var(--primary)}.switch.on span{transform:translateX(24px)}
.pricing-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.price-card{position:relative}.price-card.featured{border:2px solid var(--primary);transform:translateY(-8px)}.badge{position:absolute;top:-13px;right:18px;background:var(--primary);color:white;padding:5px 10px;border-radius:999px;font-size:.76rem;font-weight:800}.price{font-size:2.55rem;font-weight:900}.price small{font-size:.9rem;color:var(--muted)}.feature-list{padding:0;list-style:none}.feature-list li{padding:8px 0;color:var(--muted)}.feature-list li:before{content:"✓";color:var(--success);font-weight:900;margin-right:9px}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:var(--radius)}table{width:100%;border-collapse:collapse;min-width:720px;background:var(--surface)}th,td{text-align:left;padding:15px;border-bottom:1px solid var(--border)}th{background:var(--surface-2)}
.quote{font-size:1.08rem}.avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));color:white;display:grid;place-items:center;font-weight:850}.person{display:flex;gap:12px;align-items:center;margin-top:18px}
.carousel-controls{display:flex;gap:8px;justify-content:center;margin-top:22px}.carousel-controls button{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:10px;padding:8px 12px}
.faq-item{border-bottom:1px solid var(--border)}.faq-button{width:100%;display:flex;justify-content:space-between;gap:16px;text-align:left;padding:20px 0;border:0;background:transparent;color:var(--text);font-weight:800}.faq-panel{display:none;color:var(--muted);padding:0 0 20px}.faq-item.open .faq-panel{display:block}
.footer{background:#11152a;color:#d7dcf2;padding:64px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:34px}.footer h3{font-size:.95rem;color:white}.footer a{display:block;color:#aeb7d3;margin:9px 0;font-size:.9rem}.footer-bottom{border-top:1px solid #2c3249;margin-top:42px;padding-top:22px;display:flex;justify-content:space-between;gap:20px;color:#9da7c4;font-size:.88rem}
.page-hero{padding:72px 0 46px;text-align:center}.page-hero p{margin-inline:auto}.prose{max-width:820px;margin:auto}.prose h2{font-size:2rem;margin-top:42px}.prose h3{margin-top:30px}.prose p,.prose li{color:var(--muted)}
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.blog-card{overflow:hidden;padding:0}.blog-art{height:190px;background:linear-gradient(135deg,#dfe3ff,#d9fff7);display:grid;place-items:center;color:#3d3ea8;font-size:4rem}.blog-body{padding:24px}
.auth-wrap{min-height:calc(100vh - 72px);display:grid;place-items:center;padding:60px 16px}.auth-card{width:min(100%,470px);background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:34px;box-shadow:var(--shadow)}
.input-wrap{position:relative}.input-wrap button{position:absolute;right:8px;top:37px;border:0;background:transparent;color:var(--muted)}.error{color:var(--danger);font-size:.86rem}.success{color:var(--success)}
.modal{position:fixed;inset:0;background:rgba(7,10,22,.65);display:none;place-items:center;padding:20px;z-index:100}.modal.open{display:grid}.modal-card{width:min(100%,540px);background:var(--surface);border-radius:20px;padding:28px;box-shadow:var(--shadow)}.modal-head{display:flex;justify-content:space-between}.modal-close{border:0;background:transparent;color:var(--text);font-size:1.4rem}
.cookie{position:fixed;left:18px;right:18px;bottom:18px;z-index:80;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:18px;box-shadow:var(--shadow);display:flex;justify-content:space-between;gap:18px;align-items:center}.cookie.hidden{display:none}
.toast-wrap{position:fixed;right:18px;bottom:18px;z-index:120}.toast{background:#1d2438;color:white;padding:12px 16px;border-radius:12px;margin-top:8px;box-shadow:var(--shadow)}
.back-top{position:fixed;right:20px;bottom:20px;width:44px;height:44px;border:0;border-radius:50%;background:var(--primary);color:white;display:none;z-index:40}.back-top.show{display:block}
.not-found{text-align:center;padding:120px 0}.not-found strong{font-size:8rem;line-height:1;color:var(--primary)}
@media(max-width:980px){.nav-links{position:fixed;inset:72px 0 auto 0;background:var(--surface);border-bottom:1px solid var(--border);padding:24px;display:none;flex-direction:column;align-items:flex-start}.nav-links.open{display:flex}.menu-toggle{display:block;margin-left:auto}.nav-actions .btn-secondary{display:none}.hero-grid,.tool-shell{grid-template-columns:1fr}.pricing-grid{grid-template-columns:repeat(2,1fr)}.grid-3,.blog-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(3,1fr)}.footer-grid>div:first-child{grid-column:1/-1}.stats{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.section{padding:64px 0}.hero{padding-top:62px}.form-row,.grid-2,.grid-3,.blog-grid,.pricing-grid,.stats{grid-template-columns:1fr}.price-card.featured{transform:none}.mockup-body{grid-template-columns:1fr}.mock-sidebar{display:none}.footer-grid{grid-template-columns:1fr 1fr}.footer-bottom,.cookie{flex-direction:column;align-items:flex-start}.band{padding:34px 24px}.nav-actions .btn-primary{display:none}.output-toolbar{align-items:flex-start;flex-direction:column}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}