:root{--ink:#0b2a3d;--text:#1c2b36;--muted:#5b6b78;--bg:#fff;--soft:#f3f6f8;--line:#dbe3e9;--brand:#0b2a3d;--accent:#0e8f7e;--warm:#f4a62a;--card:#fff;--ok:#0e8f7e;--warn:#b25e00;--r:14px;--font:system-ui,-apple-system,"Segoe UI","Noto Sans","Noto Sans SC","PingFang SC","Microsoft YaHei","Noto Sans Tamil","Tamil Sangam MN",Latha,Roboto,sans-serif}
@media(prefers-color-scheme:dark){:root{--ink:#e8f1f6;--text:#dbe6ec;--muted:#9fb0bc;--bg:#0c1820;--soft:#12232d;--line:#233743;--brand:#0f3a52;--card:#112530;--accent:#2fc2ad}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.65;font-size:17px}
body.lang-ta,body.lang-zh{line-height:1.8}
h1,h2,h3{color:var(--ink);line-height:1.25;margin:1.4em 0 .5em}h1{font-size:clamp(1.9rem,4vw,2.8rem);margin-top:.6em}h2{font-size:1.5rem}h3{font-size:1.15rem}
a{color:var(--accent)}a:hover{text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}.narrow{max-width:780px}.narrow-p{max-width:780px}.center{text-align:center}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;color:#000;padding:8px;z-index:99}
.muted{color:var(--muted)}.small{font-size:.88rem}
.site-header{background:var(--brand);color:#fff;position:sticky;top:0;z-index:20}
.bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;min-height:64px;padding-top:6px;padding-bottom:6px}
.brand{color:#fff;text-decoration:none;font-weight:700;font-size:1.05rem;display:flex;align-items:center;gap:8px;margin-right:auto}
.mark{width:22px;height:22px;border-radius:6px;background:linear-gradient(135deg,var(--warm),#f08a24);display:inline-block}
.nav{display:flex;gap:4px;flex-wrap:wrap}.nav a{color:#dfeaf1;text-decoration:none;padding:6px 10px;border-radius:8px;font-size:.93rem}.nav a:hover,.nav a[aria-current]{background:rgba(255,255,255,.14);color:#fff}
.langs{display:flex;gap:2px;background:rgba(255,255,255,.1);border-radius:8px;padding:2px}.langs a{color:#cfe0ea;text-decoration:none;padding:4px 9px;border-radius:6px;font-size:.85rem}.langs a[aria-current]{background:#fff;color:var(--brand);font-weight:600}
.btn{display:inline-block;background:var(--warm);color:#1b1500;border:0;border-radius:10px;padding:11px 20px;font-weight:700;text-decoration:none;cursor:pointer;font:inherit;font-weight:700}
.btn:hover{filter:brightness(1.05)}.btn-sm{padding:7px 14px;font-size:.9rem}.btn-lg{padding:14px 26px;font-size:1.05rem}
.btn-ghost{background:transparent;color:var(--ink);border:2px solid var(--line)}.hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.4)}
:focus-visible{outline:3px solid var(--warm);outline-offset:2px}
.hero{background:radial-gradient(1200px 400px at 80% -10%,#14506d 0,transparent 60%),var(--brand);color:#fff;padding:56px 0 40px}
.hero h1{color:#fff;max-width:20ch}.lead{font-size:1.15rem;max-width:62ch}.hero .lead{color:#d6e5ee}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}
.trust{list-style:none;display:flex;gap:10px;flex-wrap:wrap;padding:0;margin:20px 0 0}.trust li{background:rgba(255,255,255,.12);padding:6px 14px;border-radius:99px;font-size:.88rem}.trust li:before{content:"✓ ";color:var(--warm)}
.block{padding:36px 16px}.band{background:var(--soft)}
.ladder{list-style:none;padding:0;margin:24px 0 0;display:grid;grid-template-columns:repeat(6,1fr);gap:12px;align-items:end}
.stage{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px;border-top:5px solid var(--accent)}
.stage h3{margin:0 0 10px;font-size:1rem;display:flex;gap:8px;align-items:center}
.n{display:inline-grid;place-items:center;min-width:28px;height:28px;border-radius:50%;background:var(--ink);color:var(--bg);font-weight:700;font-size:.9rem;flex:none}
.stage.s1{margin-top:200px}.stage.s2{margin-top:160px}.stage.s3{margin-top:120px}.stage.s4{margin-top:80px}.stage.s5{margin-top:40px}.stage.s6{margin-top:0}
.chips{display:flex;gap:8px;flex-wrap:wrap}.chips a,.chips button{border:1px solid var(--line);background:var(--bg);color:var(--text);padding:5px 11px;border-radius:99px;font-size:.85rem;text-decoration:none;cursor:pointer;font-family:inherit}
.chips a:hover,.chips button:hover,.chips button.on{background:var(--ink);color:var(--bg)}.chips.big a{font-size:1rem;padding:9px 16px}
.steps,.cards,.type-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin-top:16px}
.step,.card,.type-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.card.link,.type-card{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:var(--text)}.card.link:hover,.type-card:hover{border-color:var(--accent);transform:translateY(-1px)}
.type-card strong,.card.link strong{color:var(--ink)}.type-card span{color:var(--muted);font-size:.9rem}
.step h3{margin-top:0}.tag{display:inline-block;background:var(--soft);border:1px solid var(--line);border-radius:6px;padding:1px 8px;font-size:.78rem;color:var(--muted)}.tag.warn{background:#fff3e0;color:var(--warn);border-color:#f2d2a4}
.eyebrow{color:var(--accent);font-weight:700;margin:1.5em 0 0;font-size:.9rem}
.answer{background:var(--soft);border-left:5px solid var(--accent);padding:14px 18px;border-radius:8px;margin:12px 0}.answer p{margin:.3em 0 0;font-size:1.05rem}
.proscons{display:grid;grid-template-columns:1fr 1fr;gap:16px}.proscons>div{border-radius:var(--r);padding:4px 18px 12px}
.pros{background:rgba(14,143,126,.1)}.cons{background:rgba(178,94,0,.1)}.proscons h2{margin-top:.7em}.proscons ul{padding-left:1.1em;margin:0}
.callout{background:var(--soft);border:1px solid var(--line);border-radius:var(--r);padding:14px 18px;margin:20px 0}.callout.cta{border-color:var(--accent)}
.stories{padding-left:1.1em}.stories li{margin:0 0 12px}.stories p{margin:.2em 0}
.picks,.pathway{list-style:none;padding:0;display:grid;gap:14px}.pick,.pathway li{display:flex;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px 18px}.pick h3,.pathway h3{margin:0 0 4px}.pick p,.pathway p{margin:0}
.facts{display:grid;gap:10px}.facts div{border:1px solid var(--line);border-radius:10px;padding:10px 14px;background:var(--card)}.facts dt{font-weight:700;color:var(--ink)}.facts dd{margin:.2em 0 0}
.stage-block h2{display:flex;gap:10px;align-items:center}
.crumbs{font-size:.85rem;color:var(--muted);margin-top:18px}.crumbs a{color:var(--muted)}
.faq details{border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin:10px 0;background:var(--card)}.faq summary{cursor:pointer;font-weight:600;color:var(--ink)}
.filter{display:flex;gap:12px;align-items:center;margin:10px 0}.filter input{flex:1;max-width:380px}
input,select,textarea{font:inherit;width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text)}
.form label{display:block;margin:10px 0;font-weight:600}.form .check{display:flex;gap:10px;align-items:flex-start;font-weight:400}.form .check input{width:auto;margin-top:6px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.mail{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.mail input{flex:1;min-width:200px}.mail .form-msg{flex-basis:100%;margin:0}
.center .mail{justify-content:center}.form-msg{min-height:1.2em;font-size:.92rem}.form-msg.ok{color:var(--ok)}.form-msg.err{color:#c0392b}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r)}.tbl{width:100%;border-collapse:collapse;font-size:.93rem}
.tbl th,.tbl td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}.tbl th{background:var(--soft);position:sticky;top:0}.tbl tr:last-child td{border-bottom:0}
.note{background:rgba(244,166,42,.14);border-radius:10px;padding:10px 14px;margin:18px 0}
.disclaimer{font-size:.85rem;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin-top:28px}
.plain{list-style:none;padding:0;margin:.5em 0}.plain li{margin:.35em 0}
.site-footer{background:var(--soft);margin-top:60px;padding:40px 0 30px;border-top:1px solid var(--line)}.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.opt{display:block;margin:8px 0;padding:12px 14px;border:2px solid var(--line);border-radius:12px;cursor:pointer;background:var(--bg)}.opt:has(input:checked){border-color:var(--accent);background:rgba(14,143,126,.08)}.opt input{width:auto;margin-right:10px}
.bar-track{background:var(--soft);border-radius:99px;height:10px;overflow:hidden;margin:6px 0 4px}.bar-fill{background:linear-gradient(90deg,var(--accent),var(--warm));height:100%}
.progress{height:6px;background:var(--soft);border-radius:99px;margin-bottom:16px}.progress i{display:block;height:100%;background:var(--accent);border-radius:99px;transition:width .2s}
.res{padding:12px 0;border-bottom:1px solid var(--line)}.btns{display:flex;gap:10px;margin-top:14px}
.news{list-style:none;padding:0;margin:10px 0}.news li{padding:10px 0;border-bottom:1px solid var(--line)}.news a{font-weight:600;text-decoration:none}.news a:hover{text-decoration:underline}.news .meta{display:block;font-size:.82rem;color:var(--muted)}
.hsearch input{width:150px;padding:6px 10px;border-radius:8px;border:0;background:rgba(255,255,255,.14);color:#fff;font-size:.88rem}.hsearch input::placeholder{color:#cfe0ea}.hsearch input:focus{background:#fff;color:#111}
.results{list-style:none;padding:0}.results li{padding:12px 0;border-bottom:1px solid var(--line)}.results a{font-weight:600;font-size:1.05rem}.results p{margin:.2em 0 0;color:var(--muted);font-size:.92rem}
@media(max-width:960px){.ladder{grid-template-columns:1fr 1fr}.stage{margin-top:0!important}.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.proscons,.grid2,.foot-grid{grid-template-columns:1fr}.ladder{grid-template-columns:1fr}.nav{order:5;width:100%}.hero{padding-top:36px}
 .tbl thead{display:none}.tbl tr{display:block;padding:8px 0;border-bottom:1px solid var(--line)}.tbl td{display:block;border:0;padding:3px 14px}.tbl td:before{content:attr(data-label)": ";color:var(--muted);font-size:.8rem}}
@media print{.site-header,.site-footer,.btn{display:none}}