:root{--canvas:#f6f7f4;--surface:#fff;--surface-sunk:#eef1ec;--line:#e1e5de;--line-strong:#cbd2c8;--ink:#14201b;--ink-2:#4b5852;--ink-3:#5c6862;--primary:#17694f;--primary-strong:#0f4a38;--primary-wash:#e6f1ec;--on-primary:#fff;--rail:#0f241c;--rail-ink:#cfdcd5;--collar-male:#c8402f;--collar-female:#1f8a5f;--danger:#b3261e;--radius:12px;--radius-sm:8px;--font:system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Tamil", "Nirmala UI", sans-serif;--mono:ui-monospace, "SF Mono", Menlo, Consolas, monospace;--wrap:1120px;color-scheme:light}:root[data-theme=dark]{color-scheme:dark;--canvas:#0d1713;--surface:#13201b;--surface-sunk:#0a120f;--line:#23342c;--line-strong:#31463c;--ink:#e6efe9;--ink-2:#b2c2b9;--ink-3:#8a9a91;--primary:#4fb38c;--primary-strong:#7fd0ae;--primary-wash:#16302a;--on-primary:#0a120f}.theme-toggle{border:1px solid var(--line-strong);width:36px;height:36px;color:var(--ink-2);cursor:pointer;background:0 0;border-radius:999px;place-items:center;padding:0;display:inline-grid}.theme-toggle:hover{color:var(--primary);border-color:var(--primary)}.theme-toggle svg{width:18px;height:18px}.theme-toggle .moon,:root[data-theme=dark] .theme-toggle .sun{display:block}.theme-toggle .sun,:root[data-theme=dark] .theme-toggle .moon{display:none}*{box-sizing:border-box}html{scroll-behavior:smooth}[id]{scroll-margin-top:84px}body{background:var(--canvas);color:var(--ink);font:17px/1.6 var(--font);-webkit-font-smoothing:antialiased;overflow-wrap:anywhere;margin:0}:lang(ta) body,body:lang(ta){font-size:16px;line-height:1.75}h1,h2,h3{letter-spacing:-.015em;margin:0 0 .5em;line-height:1.2}h1{font-size:clamp(2rem,5vw,3.25rem)}h2{font-size:clamp(1.5rem,3.2vw,2.2rem)}h3{font-size:1.15rem}p{margin:0 0 1em}a{color:var(--primary)}img{max-width:100%;height:auto;display:block}:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}section{padding:72px 0}section.alt{background:var(--surface);border-block:1px solid var(--line)}.eyebrow{color:var(--primary);letter-spacing:.08em;text-transform:uppercase;margin-bottom:.6em;font-size:.85rem;font-weight:650}.lede{color:var(--ink-2);max-width:46em;font-size:1.15rem}.btn{border:1px solid var(--primary);border-radius:999px;padding:12px 20px;font-weight:650;text-decoration:none;display:inline-block}.btn.primary{background:var(--primary);color:var(--on-primary)}.btn.ghost{color:var(--primary);background:0 0}.btn:hover{filter:brightness(1.08)}.actions{flex-wrap:wrap;gap:12px;margin-top:24px;display:flex}.grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;display:grid}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}.card h3{margin-bottom:.35em}.card p{color:var(--ink-2);margin:0}.site-header{z-index:10;background:color-mix(in srgb, var(--canvas) 92%, transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);position:sticky;top:0}.site-header .wrap{flex-wrap:wrap;align-items:center;gap:20px;min-height:64px;display:flex}.brand{color:var(--ink);align-items:center;gap:10px;margin-right:auto;text-decoration:none;display:flex}.brand img{border-radius:8px;flex:none}.brand b{font-size:1.15rem}.brand small{color:var(--ink-3);font-size:.8rem}.site-nav{flex-wrap:wrap;align-items:center;gap:6px 18px;font-size:.95rem;display:flex}.site-nav a{color:var(--ink-2);text-decoration:none}.site-nav a:hover{color:var(--primary)}.site-nav .btn{color:var(--on-primary);padding:8px 14px}@media (width<=720px){.site-nav .hide-sm{display:none}.site-header{position:static}.brand small{display:none}}.site-footer{color:var(--ink-3);padding:40px 0;font-size:.9rem}.site-footer .wrap{flex-wrap:wrap;justify-content:space-between;gap:8px 24px;display:flex}code,pre{font-family:var(--mono);font-size:.9em}pre{background:var(--rail);color:var(--rail-ink);border-radius:var(--radius-sm);padding:16px;overflow-x:auto}.form{gap:14px;display:grid}.form label{gap:4px;font-size:.95rem;font-weight:600;display:grid}.form input,.form textarea,.form select{font:inherit;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink);width:100%;padding:10px 12px}.form .row{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;display:grid}.hp{width:1px;height:1px;position:absolute;left:-10000px;overflow:hidden}.notice{border-left:4px solid var(--primary);background:var(--primary-wash);border-radius:var(--radius-sm);padding:14px 16px}