
:root{--navy:#0b2f52;--blue:#145da0;--gold:#f4a300;--green:#16794f;--red:#b42318;--ink:#1f2937;--muted:#64748b;--bg:#eef3f8;--card:#fff;--line:#d8e2ec;--en:#f7fbff;--ta:#fffaf1}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Noto Sans Tamil","Nirmala UI",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.72}a{color:var(--blue)}header{background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;padding:42px 18px}.wrap{width:min(1260px,calc(100% - 28px));margin:auto}.eyebrow{display:inline-block;padding:5px 12px;border:1px solid #ffffff66;border-radius:999px;font-size:.84rem}h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.15;margin:12px 0}.subtitle{max-width:1050px;color:#e9f4ff;font-size:1.06rem}.nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}.nav .wrap{display:flex;gap:16px;align-items:center;overflow:auto;padding:10px 0}.nav a{text-decoration:none;white-space:nowrap;font-weight:700}.content{padding:26px 0 55px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 10px 26px rgba(15,61,104,.07);margin-bottom:18px}.card>h2{color:var(--navy);margin-top:0}.bi-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.lang{border:1px solid var(--line);border-radius:13px;padding:20px;min-width:0}.lang.en{background:var(--en)}.lang.ta{background:var(--ta)}.lang h3{margin-top:0;color:var(--navy);display:flex;align-items:center;gap:8px}.badge{font-size:.72rem;padding:3px 8px;border-radius:999px;background:var(--navy);color:#fff}.lead{font-size:1.12rem}.tag{display:inline-block;background:#eaf3fb;color:var(--blue);padding:4px 10px;border-radius:999px;font-size:.82rem;font-weight:800;margin:2px}.callout{border-left:5px solid var(--blue);background:#edf6ff;padding:16px 18px;border-radius:10px;margin:16px 0}.warning{border-left-color:var(--gold);background:#fff8e8}.danger{border-left-color:var(--red);background:#fff1f0}.success{border-left-color:var(--green);background:#edf9f3}.example{border:1px dashed #9eb6ca;background:#fff;border-radius:12px;padding:16px;margin:15px 0}table{width:100%;border-collapse:collapse;margin:14px 0;background:#fff}th,td{border:1px solid var(--line);padding:11px;text-align:left;vertical-align:top}th{background:#eaf2f8;color:var(--navy)}.table-wrap{overflow:auto}.crumbs{font-size:.92rem;margin-bottom:12px}.keyword-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:13px}.keyword-list a{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;text-decoration:none;font-weight:800}.keyword-list small{display:block;color:var(--muted);font-weight:400;margin-top:4px}.pager{display:flex;justify-content:space-between;gap:12px;margin-top:20px}.pager a{background:var(--navy);color:#fff;text-decoration:none;padding:10px 14px;border-radius:9px}.muted{color:var(--muted)}footer{text-align:center;padding:30px;color:var(--muted)}code{background:#eef2f6;padding:2px 6px;border-radius:5px}.checklist li{margin:8px 0}.print-btn{position:fixed;right:16px;bottom:16px;border:0;background:var(--gold);font-weight:900;padding:11px 16px;border-radius:999px;cursor:pointer}.section-note{text-align:center;color:var(--muted);margin-top:-7px}.toc a{display:block;padding:7px 0}.wide{grid-column:1/-1}@media(max-width:820px){.bi-grid{grid-template-columns:1fr}.pager{flex-direction:column}.card{padding:16px}.nav{position:static}}@media print{.nav,.print-btn,.pager{display:none}body{background:#fff}.card{box-shadow:none;break-inside:auto}.lang{break-inside:avoid}.content{padding-top:0}.bi-grid{grid-template-columns:1fr 1fr;font-size:9.5pt}}
