:root{--bg: #ffffff;--surface: #f6f7f8;--surface-2: #eef0f1;--text: #0b0f12;--muted: #58626b;--border: #e4e8ea;--accent: #0a8a86;--accent-strong: #086f6c;--accent-ink: #ffffff;--shadow: 0 1px 2px rgba(8, 15, 18, .04), 0 8px 24px rgba(8, 15, 18, .06);--maxw: 1080px;--radius: 18px;--radius-sm: 12px;--space: 8px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", sans-serif;--mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace}@media(prefers-color-scheme:dark){:root{--bg: #0b0e11;--surface: #14181c;--surface-2: #1b2126;--text: #f1f4f5;--muted: #98a4ac;--border: #232a30;--accent: #2bd4c6;--accent-strong: #4fe0d3;--accent-ink: #03110f;--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .35)}}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}h1,h2,h3,h4{line-height:1.15;letter-spacing:-.02em;margin:0 0 .4em;font-weight:700}h1{font-size:clamp(2.2rem,5vw,3.4rem)}h2{font-size:clamp(1.6rem,3.5vw,2.3rem)}h3{font-size:1.25rem}p{margin:0 0 1rem}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}.narrow{max-width:720px}.section{padding:clamp(48px,8vw,96px) 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var(--border);border-radius:var(--radius);padding:24px}.card-elevated{box-shadow:var(--shadow)}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}@media(max-width:760px){.grid-2,.grid-3{grid-template-columns:1fr}}.site-header{position:sticky;top:0;z-index:50;backdrop-filter:saturate(1.4) blur(12px);background:color-mix(in srgb,var(--bg) 82%,transparent);border-bottom:1px solid var(--border)}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--text);letter-spacing:-.01em}.brand:hover{text-decoration:none}.brand svg{display:block}.nav{display:flex;align-items:center;gap:22px}.nav a{color:var(--muted);font-weight:500}.nav a:hover{color:var(--text);text-decoration:none}@media(max-width:720px){.nav .nav-link{display:none}}.site-footer{border-top:1px solid var(--border);padding:48px 0;color:var(--muted);font-size:.92rem}.site-footer a{color:var(--muted)}.site-footer a:hover{color:var(--text)}.footer-grid{display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center;justify-content:space-between}.hero{padding:clamp(56px,9vw,120px) 0 clamp(32px,6vw,72px)}.hero p.lead{font-size:1.2rem;color:var(--muted);max-width:620px}.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.pill{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--surface-2);color:var(--muted);font-size:.82rem;font-weight:600}.feature{display:flex;gap:14px;align-items:flex-start}.feature .ico{flex:0 0 auto;width:40px;height:40px;border-radius:11px;display:grid;place-items:center;background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);font-size:20px}.feature h3{margin:2px 0 4px;font-size:1.05rem}.feature p{margin:0;color:var(--muted);font-size:.95rem}.calc{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}@media(max-width:860px){.calc{grid-template-columns:1fr}}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field label{font-size:.85rem;font-weight:600;color:var(--muted)}.field .input-row{display:flex;align-items:center;gap:8px}.field input,.field select{font:inherit;width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--border);background:var(--bg);color:var(--text)}.field .unit{color:var(--muted);font-size:.9rem;white-space:nowrap}.result-card{position:sticky;top:84px}.result-total{font-size:clamp(2rem,6vw,2.8rem);font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:-.03em}.result-row{display:flex;justify-content:space-between;padding:6px 0;color:var(--muted);border-top:1px solid var(--border)}.result-row:first-of-type{border-top:none}.result-row.total{color:var(--text);font-weight:700;border-top:2px solid var(--border);margin-top:6px;padding-top:12px}.article{max-width:720px;margin:0 auto}.article h2{margin-top:1.8em}.article h3{margin-top:1.4em}.article ul,.article ol{padding-left:1.3em}.article li{margin:.3em 0}.article code{font-family:var(--mono);background:var(--surface-2);padding:1px 5px;border-radius:5px;font-size:.9em}.article .meta{color:var(--muted);font-size:.9rem;display:flex;gap:12px;align-items:center}.guide-card{display:block;height:100%}.guide-card:hover{text-decoration:none;border-color:var(--accent)}.guide-card .cat{color:var(--accent);font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em}.guide-card h3{margin:6px 0;color:var(--text)}.guide-card p{color:var(--muted);font-size:.92rem;margin:0}.price{font-size:2.4rem;font-weight:800;letter-spacing:-.03em}.price small{font-size:.9rem;font-weight:500;color:var(--muted)}.plan.featured{border-color:var(--accent);box-shadow:var(--shadow)}.plan .badge{display:inline-block;background:var(--accent);color:var(--accent-ink);font-size:.72rem;font-weight:700;padding:3px 10px;border-radius:999px}.check{color:var(--accent)}