:root{color-scheme:light;--bg-app: #f7fbff;--bg-app-accent: #eef7ff;--surface-1: rgba(255,255,255,.72);--surface-2: rgba(255,255,255,.9);--surface-3: rgba(255,255,255,.98);--surface-hover: rgba(255,255,255,.84);--text-1: #0b1220;--text-2: rgba(15,23,42,.72);--text-3: rgba(15,23,42,.5);--text-on-accent: #ffffff;--text-link: #2563eb;--accent: #2563eb;--accent-hover: #3b82f6;--accent-strong: #1d4ed8;--accent-soft: rgba(37,99,235,.14);--border-soft: rgba(15,23,42,.1);--border-strong: rgba(15,23,42,.18);--border-accent: rgba(37,99,235,.28);--rule-subtle: rgba(15,23,42,.08);--bg-spot-1: rgba(59,130,246,.18);--bg-spot-2: rgba(16,185,129,.13);--bg-spot-3: rgba(251,191,36,.1);--shadow-1: 0 8px 20px rgba(2,6,23,.06);--shadow-2: 0 16px 36px rgba(2,6,23,.08);--highlight-top: rgba(255,255,255,.54);--highlight-top-strong: rgba(255,255,255,.76);--focus-ring: rgba(59,130,246,.24);--radius-sm: 12px;--radius-md: 14px;--radius-lg: 18px;--radius-xl: 22px;--radius-pill: 999px;--maxw: 1080px;--pad: 20px}*{box-sizing:border-box}html,body{margin:0;padding:0;min-height:100%}body{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text-1);background:linear-gradient(180deg,var(--bg-app),var(--bg-app-accent));text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(1200px 720px at 18% 0%,var(--bg-spot-1),transparent 62%),radial-gradient(1000px 680px at 88% 10%,var(--bg-spot-2),transparent 58%),radial-gradient(1200px 720px at 55% 0%,var(--bg-spot-3),transparent 64%),linear-gradient(180deg,var(--bg-app),var(--bg-app-accent))}a{color:var(--text-link);text-decoration:none}a:hover{text-decoration:underline}main{max-width:var(--maxw);margin:0 auto;padding:32px var(--pad) 56px}h1{margin:0 0 16px;font-size:44px;line-height:1.08;letter-spacing:.2px}h2{margin:0 0 14px;font-size:1.7rem;line-height:1.15}h3{margin:0 0 12px;font-size:1.15rem;line-height:1.2}p{margin:0 0 16px;line-height:1.65;color:var(--text-1)}.card{background:linear-gradient(180deg,var(--highlight-top),transparent 18%),linear-gradient(180deg,var(--surface-3),var(--surface-2));border:1px solid var(--border-soft);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);padding:28px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:12px;padding:10px 16px;border:1px solid var(--border-soft);background:linear-gradient(180deg,var(--highlight-top),transparent 58%),var(--surface-2);color:var(--text-1);text-decoration:none;cursor:pointer;font-weight:700;box-shadow:var(--shadow-1);transition:transform .16s cubic-bezier(.2,.7,.2,1),border-color .16s cubic-bezier(.2,.7,.2,1),background-color .16s cubic-bezier(.2,.7,.2,1)}.btn:hover{transform:translateY(-1px);border-color:var(--border-strong);text-decoration:none}.btnPrimary{color:var(--text-on-accent);background:linear-gradient(180deg,var(--highlight-top),transparent 42%),linear-gradient(180deg,var(--accent-hover),var(--accent));border-color:var(--border-accent);box-shadow:var(--shadow-2)}.btnPrimary:hover{background:linear-gradient(180deg,var(--highlight-top-strong),transparent 42%),linear-gradient(180deg,var(--accent-hover),var(--accent-strong))}input,select,textarea,button{font:inherit;color:inherit}input,select,textarea{width:100%;border:1px solid var(--border-soft);border-radius:12px;padding:12px 14px;background:linear-gradient(180deg,var(--highlight-top),transparent 58%),var(--surface-2);box-shadow:inset 0 1px 0 var(--highlight-top)}textarea{resize:vertical}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:none;border-color:var(--border-accent);box-shadow:0 0 0 3px var(--focus-ring)}.siteHeader{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:linear-gradient(180deg,var(--highlight-top),transparent 62%),var(--surface-2);border-bottom:1px solid var(--border-soft);box-shadow:inset 0 1px 0 var(--highlight-top)}.siteHeader .inner{max-width:var(--maxw);margin:0 auto;min-height:66px;padding:0 var(--pad);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.siteHeader .brand{font-weight:950;letter-spacing:.2px;color:var(--accent);text-decoration:none}.siteHeader .nav{display:flex;gap:18px;flex-wrap:wrap}.siteHeader .nav a{color:var(--text-1);font-weight:500;text-decoration:none}.siteHeader .nav a:hover{color:var(--accent)}.switcher{display:flex;gap:8px;flex-wrap:wrap}.switcher a{display:inline-flex;align-items:center;justify-content:center;min-width:44px;padding:8px 10px;border-radius:12px;border:1px solid var(--border-soft);background:linear-gradient(180deg,var(--highlight-top),transparent 58%),var(--surface-2);color:var(--text-1);text-decoration:none}.switcher a.active{color:var(--text-on-accent);background:linear-gradient(180deg,var(--highlight-top),transparent 42%),linear-gradient(180deg,var(--accent-hover),var(--accent));border-color:var(--border-accent)}.siteFooter{border-top:1px solid var(--border-soft);background:linear-gradient(180deg,var(--highlight-top),transparent 62%),var(--surface-2);margin-top:48px}.siteFooter .inner{max-width:var(--maxw);margin:0 auto;padding:20px var(--pad)}.siteFooter p{margin:0;color:var(--text-2);font-size:.95rem}.submitBtn{width:auto;justify-self:start}@media(max-width:900px){main{padding:24px 14px 44px}.card{padding:20px}h1{font-size:36px}}@media(max-width:640px){h1{font-size:32px;line-height:1.06}h2{font-size:1.45rem}.siteHeader .inner{padding:10px 14px}.card{padding:16px;border-radius:var(--radius-md)}.siteHeader .nav{gap:12px}}