:root{--bg:#0b0c10;--panel:#12141a;--panel-2:#0f1117;--text:#e6e8ee;--muted:#9aa3b2;--primary:#6ae0ff;--primary-600:#4dc8ea;--border:#232736;--shadow:0 10px 30px rgba(0,0,0,.35)}
:root[data-theme="light"]{--bg:#f7f8fb;--panel:#ffffff;--panel-2:#f2f4f8;--text:#0d0f14;--muted:#5b6576;--primary:#0ea5e9;--primary-600:#0284c7;--border:#e5e7eb;--shadow:0 8px 24px rgba(2,8,23,.08)}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
a{color:inherit;text-decoration:none}
img{display:block}
.container{width:min(1120px,calc(100% - 32px));margin-inline:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;height:44px;padding:0 16px;border-radius:10px;border:1px solid var(--border);background:transparent;color:var(--text);transition:.2s ease;cursor:pointer}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--primary);border-color:transparent;color:#081018;font-weight:600}
.btn-primary:hover{filter:brightness(.95)}
.btn-secondary{background:transparent}
.btn-ghost{background:transparent;border-color:transparent}
.btn.full{width:100%}
.site-header{position:sticky;top:0;z-index:50;background:rgba(13,15,20,.6);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--border)}
:root[data-theme="light"] .site-header{background:rgba(255,255,255,.7)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:700}
.brand img{filter:drop-shadow(0 1px 0 rgba(0,0,0,.2))}
.nav{display:flex;align-items:center;gap:1rem}
.hero{padding:56px 0 32px;background:radial-gradient(1200px 600px at 70% -20%, rgba(106,224,255,.18), rgba(0,0,0,0)), radial-gradient(600px 400px at 0% -10%, rgba(14,165,233,.18), rgba(0,0,0,0))}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
.hero-copy h1{margin:0 0 8px;font-size:44px;line-height:1.1}
.hero-copy p{margin:0 0 20px;color:var(--muted)}
.hero-cta{display:flex;gap:.75rem}
.widget{background:var(--panel);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);padding:16px;display:flex;flex-direction:column;gap:12px}
.widget-row{display:flex;flex-direction:column;gap:8px}
.input-row{display:grid;grid-template-columns:1fr 160px;gap:8px}
.input-row input,.input-row select{height:44px;border-radius:10px;border:1px solid var(--border);background:var(--panel-2);color:var(--text);padding:0 12px;font:inherit}
.input-row input[readonly]{opacity:.8}
.hint{color:var(--muted);font-size:.9rem;min-height:1.2em}
.note{font-size:.9rem}
.section{padding:56px 0;border-top:1px solid var(--border)}
.section.alt{background:linear-gradient(180deg, rgba(14,165,233,.08), transparent)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:18px}
.steps{display:grid;gap:14px}
.step{display:flex;align-items:flex-start;gap:12px}
.step-index{width:28px;height:28px;border-radius:8px;background:var(--primary);display:inline-flex;align-items:center;justify-content:center;color:#081018;font-weight:700}
.cta{background:radial-gradient(800px 400px at 30% 0%, rgba(106,224,255,.12), rgba(0,0,0,0))}
.cta-inner{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px}
.site-footer{border-top:1px solid var(--border);padding:20px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between}
.brand-small{display:flex;align-items:center;gap:.5rem;font-weight:700}
@media (max-width: 900px){.hero-inner{grid-template-columns:1fr}.nav a:nth-child(-n+2){display:none}}
@media (max-width: 640px){.input-row{grid-template-columns:1fr}.hero-copy h1{font-size:34px}}