:root{--ink:#14283c;--ink2:#1f3a56;--yellow:#f2b705;--red:#c8372d;--paper:#f7f6f2;--line:#d9d6cc;--mute:#586674;--white:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:17px/1.6 Barlow,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--paper)}
h1,h2,h3{font-family:"Barlow Condensed","Arial Narrow",Arial,sans-serif;line-height:1.05;margin:0 0 .5em;letter-spacing:.2px}
h1{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:700}
h2{font-size:clamp(1.8rem,3.5vw,2.5rem);font-weight:700}
h3{font-size:1.4rem;font-weight:600}
a{color:inherit}
:focus-visible{outline:3px solid var(--yellow);outline-offset:2px}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
/* header row 1 */
.top{background:var(--ink);color:#e8edf2;font-size:.9rem}
.top .wrap{display:flex;flex-wrap:wrap;gap:6px 22px;justify-content:space-between;padding-top:8px;padding-bottom:8px}
.top span,.top a{text-decoration:none}
.top .acct a{margin-left:16px;font-weight:600}
/* header row 2 */
.main{background:var(--white);border-bottom:4px solid var(--yellow);position:sticky;top:0;z-index:5}
.main .wrap{display:flex;align-items:center;gap:20px;justify-content:space-between;padding-top:10px;padding-bottom:10px}
.logo{font:700 1.5rem/1 "Barlow Condensed",Arial,sans-serif;text-decoration:none;display:flex;align-items:center;gap:10px}
.logo i{width:38px;height:38px;background:var(--yellow);display:grid;place-items:center;font-style:normal;color:var(--ink);clip-path:polygon(50% 0,100% 100%,0 100%);padding-top:12px;font-size:1rem}
.logo small{display:block;font:500 .75rem/1.2 Barlow,Arial,sans-serif;color:var(--mute)}
nav{display:flex;gap:4px}
nav a{padding:8px 12px;text-decoration:none;font-weight:600;white-space:nowrap;border-bottom:3px solid transparent}
nav a:hover,nav a[aria-current]{border-color:var(--red)}
.btn{display:inline-block;background:var(--red);color:var(--white);padding:12px 22px;font-weight:700;text-decoration:none;border:0;cursor:pointer;font:700 1rem Barlow,Arial,sans-serif}
.btn.alt{background:var(--yellow);color:var(--ink)}
.btn:hover{filter:brightness(.92)}
/* hero */
.hero{background:var(--ink);color:var(--white);padding:56px 0 64px;background-image:repeating-linear-gradient(135deg,transparent 0 22px,rgba(242,183,5,.07) 22px 44px)}
.hero .wrap{display:grid;grid-template-columns:1.25fr 1fr;gap:40px;align-items:start}
.hero p{max-width:34em;color:#d5dde5}
.hero .cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.card{background:var(--white);color:var(--ink);padding:24px;border-top:6px solid var(--yellow)}
.card h3{margin-bottom:.3em}
.card dl{margin:0}
.card dt{font-weight:600;margin-top:10px}
.card dd{margin:0;color:var(--mute)}
/* sections */
section{padding:56px 0}
section.alt{background:var(--white)}
.lead{max-width:42em;color:var(--mute)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.col{background:var(--white);border:1px solid var(--line);padding:22px}
section.alt .col{background:var(--paper)}
.col h3{border-bottom:3px solid var(--yellow);padding-bottom:8px}
.col ul{list-style:none;margin:0;padding:0}
.col li{border-bottom:1px solid var(--line);padding:9px 0}
.col li:last-child{border:0}
.col li a{text-decoration:none;display:block}
.col li a:hover{color:var(--red)}
table{width:100%;border-collapse:collapse;background:var(--white)}
th,td{text-align:left;padding:12px 14px;border:1px solid var(--line)}
th{background:var(--ink);color:var(--white);font-weight:600}
td.fee{font:700 1.3rem "Barlow Condensed",Arial,sans-serif}
.times{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.steps li{counter-increment:s;background:var(--white);border:1px solid var(--line);padding:16px}
.steps li:before{content:counter(s);display:block;font:700 2rem "Barlow Condensed",Arial,sans-serif;color:var(--red)}
/* course page */
.crumb{font-size:.9rem;color:#b9c6d2;margin-bottom:10px}
.crumb a{text-decoration:none}
.two{display:grid;grid-template-columns:1.6fr 1fr;gap:36px;align-items:start}
.side{position:sticky;top:90px}
.side .btn{display:block;text-align:center;margin-top:16px}
.sub td:first-child{font-family:"Barlow Condensed",Arial,sans-serif;font-weight:600;white-space:nowrap}
.note{background:#fff7d6;border-left:6px solid var(--yellow);padding:14px 18px;margin:20px 0}
/* form */
form{display:grid;gap:12px;max-width:560px}
label{font-weight:600;display:grid;gap:4px}
input,select,textarea{font:inherit;padding:11px;border:1px solid #9aa6b2;background:var(--white);width:100%}
footer{background:var(--ink);color:#cfd8e1;padding:40px 0 20px;font-size:.95rem}
footer .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
footer a{display:block;text-decoration:none;padding:3px 0}
footer .fine{grid-column:1/-1;border-top:1px solid #34506b;padding-top:14px;margin-top:10px;font-size:.85rem}
@media(max-width:860px){.hero .wrap,.two,.grid3,.times,footer .wrap{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}.main .wrap{flex-wrap:wrap}.side{position:static}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* v2: old-site header, dropdowns, slider */
:root{--red:#d9301f}
.top{background:var(--white);color:var(--ink);border-bottom:1px solid var(--line)}
.top .wrap{align-items:center;padding-top:8px;padding-bottom:8px}
.logo img{height:56px;width:auto;display:block}
.toplinks{display:flex;gap:6px 18px;flex-wrap:wrap;align-items:center;font-weight:600}
.toplinks a{text-decoration:none}.toplinks a:hover{color:var(--red)}
.top .acct a{margin-left:0}
.main{background:var(--ink);border-bottom:4px solid var(--yellow)}
.main .wrap{padding-top:0;padding-bottom:0;justify-content:flex-start;gap:0}
.mnav{display:flex;flex-wrap:wrap;list-style:none;margin:0;padding:0;flex:1}
.mnav>li{position:relative}
.mnav>li>a{display:block;padding:13px 14px;color:var(--white);text-decoration:none;font-weight:600;font-size:.95rem}
.mnav>li:hover>a,.mnav>li.open>a{background:var(--ink2)}
.mnav ul{display:none;position:absolute;left:0;top:100%;width:max-content;min-width:260px;max-width:360px;background:var(--white);list-style:none;margin:0;padding:6px 0;box-shadow:0 8px 24px rgba(0,0,0,.25);border-top:3px solid var(--yellow)}
.mnav li.open>ul{display:block}
.mnav ul a{display:block;padding:8px 16px;text-decoration:none;font-size:.92rem}
.mnav ul a:hover{background:var(--paper);color:var(--red)}
.mnav .last ul{left:auto;right:0}
.slider{position:relative;background:var(--ink);color:var(--white);overflow:hidden}
.slide{display:none;padding:64px 0 76px;background-image:repeating-linear-gradient(135deg,transparent 0 22px,rgba(242,183,5,.07) 22px 44px)}
.slide.on{display:block}
.slide .wrap{max-width:900px}
.slide p{color:#d5dde5;max-width:36em}
.sl-ctl{position:absolute;bottom:18px;left:0;right:0;display:flex;justify-content:center;gap:10px}
.sl-ctl button{width:14px;height:14px;border-radius:50%;border:2px solid var(--yellow);background:transparent;cursor:pointer;padding:0}
.sl-ctl button[aria-current=true]{background:var(--yellow)}
.rel{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rel a{display:block;background:var(--white);border:1px solid var(--line);border-top:4px solid var(--yellow);padding:16px;text-decoration:none}
.rel a:hover{border-top-color:var(--red)}
.rel small{color:var(--mute);display:block}
@media(max-width:860px){.rel{grid-template-columns:1fr}.mnav ul{position:static;width:auto;max-width:none;box-shadow:none}}
/* v3: red / yellow / grey theme */
:root{--ink:#2b2f33;--ink2:#3b4046;--red:#d9301f;--yellow:#f2b705;--paper:#f1f2f3;--line:#d5d8db;--mute:#5c636a}
.top .toplinks a{color:var(--red)}
.top .toplinks a:hover{color:var(--ink)}
.main{background:var(--red);border-bottom:4px solid var(--yellow)}
.mnav>li:hover>a,.mnav>li.open>a{background:#b32718}
.btn{background:var(--red)}.btn.alt{background:var(--yellow);color:var(--ink)}
h4{font:700 1.15rem "Barlow Condensed",Arial,sans-serif;margin:0 0 .5em;color:var(--yellow);letter-spacing:.4px}
.slide{background-size:cover;background-position:center;position:relative}
.slide:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(43,47,51,.92),rgba(43,47,51,.55))}
.slide .wrap{position:relative}
.slide .h1{font:700 clamp(2.4rem,6vw,4.2rem)/1.05 "Barlow Condensed",Arial,sans-serif;margin:0 0 .5em;display:block}
.eyebrow{color:var(--yellow);font-weight:700;text-transform:uppercase;letter-spacing:2px;font-size:.85rem;margin:0 0 8px}
.feat{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:-40px;position:relative;z-index:2}
.feat div{background:#111;color:var(--white);padding:24px;border-top:5px solid var(--yellow);border-right:1px solid var(--line)}
.feat div:nth-child(even){background:var(--red)}
.feat h3{font-size:1.3rem;margin-bottom:.3em}
.feat p{margin:0;font-size:.95rem;color:inherit;opacity:.85}
.about{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.about img,.cimg{width:100%;height:auto;display:block;border-bottom:6px solid var(--yellow)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:20px}
.stats div{background:var(--paper);padding:14px;border-left:5px solid var(--red)}
.stats b{font:700 2rem "Barlow Condensed",Arial,sans-serif;display:block;color:var(--red)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cc{background:var(--white);border:1px solid var(--line);text-decoration:none;display:block}
.cc:hover{border-color:var(--red)}
.cc .b{padding:16px 18px 20px}.cc h3{margin:0 0 .3em}.cc p{margin:0 0 10px;color:var(--mute);font-size:.95rem}
.cc span{color:var(--red);font-weight:700}
.testi{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.testi figure{margin:0;background:var(--white);border:1px solid var(--line);border-top:5px solid var(--red);padding:24px}
.testi blockquote{margin:0 0 16px}
.testi figcaption{display:flex;gap:12px;align-items:center;font-weight:600}
.testi img{width:48px;height:48px;border-radius:50%}
.testi small{display:block;font-weight:400;color:var(--mute)}
.band{background:var(--red) url(../images/nsa-enrol-banner-fire-safety-courses-chennai.webp) center/cover;color:var(--white);padding:44px 0}
.band .wrap{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between}
.band h2{margin:0}.band p{margin:0;opacity:.9}
.contact{display:grid;grid-template-columns:1fr 1fr;gap:40px}
footer{background:var(--ink)}
@media(max-width:860px){.feat,.about,.cards,.testi,.contact,.stats{grid-template-columns:1fr}.feat{margin-top:0}}

/* v4: dropdown links wrap instead of scrolling; Visit us cell with background image */
.mnav ul a{white-space:normal;border-bottom:0}
.mnav ul a:hover{border-color:transparent}
.mnav>li>a.has-sub:after{content:"\25BE";margin-left:6px;font-size:.8em}
.contact .card{background:linear-gradient(rgba(20,22,24,.78),rgba(20,22,24,.78)),url(../images/nsa-visit-us-ambattur-padi-chennai.webp) center/cover;color:var(--white);border-top-color:var(--yellow);display:flex;flex-direction:column;justify-content:center}
.contact .card a{color:var(--yellow)}
.contact .card a.btn{color:var(--ink);align-self:flex-start;margin-top:8px}

/* v5: why choose us, text links, accreditation, account pages */
.toplinks span{color:var(--ink);font-weight:600}
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:22px;counter-reset:w}
.why div{counter-increment:w;background:var(--paper);border-top:5px solid var(--yellow);padding:20px}
.why h3{font-size:1.3rem;margin-bottom:.3em}.why p{margin:0;color:var(--mute);font-size:.95rem}
.clinks{display:flex;flex-wrap:wrap;gap:12px 28px;margin:26px 0 0;font:700 1.3rem "Barlow Condensed",Arial,sans-serif}
.clinks a{color:var(--red);text-decoration:none;border-bottom:3px solid var(--yellow)}
.clinks a:after{content:" \2192"}
.accred{list-style:none;margin:22px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.accred li{background:var(--white);border:1px solid var(--line);padding:18px;text-align:center}
.accred img{height:110px;width:auto;max-width:100%;object-fit:contain;display:block;margin:0 auto 10px}
.accred span{font-size:.9rem;color:var(--mute)}
section form button{margin-top:4px}
@media(max-width:860px){.why,.accred{grid-template-columns:1fr 1fr}}
/* v6: catalogue, contact, related */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 0}
.chips a{background:var(--yellow);color:var(--ink);padding:8px 16px;font-weight:700;text-decoration:none}
.chips a:hover{background:var(--white)}
.meta{font-weight:600;color:var(--red)!important;margin:0 0 6px!important}
.rel h3{font-size:1.2rem;margin:0 0 4px}
textarea{resize:vertical}
section[id]{scroll-margin-top:70px}
/* v7: small red icon buttons on course cards */
.cart{gap:8px;padding:0 18px 18px}
.cart .ib{display:inline-flex;align-items:center;gap:6px;padding:6px 11px;border:2px solid var(--red);background:var(--white);color:var(--red);font:700 .88rem/1 Barlow,Arial,sans-serif;text-decoration:none;cursor:pointer}
.cart .ib svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.cart .ib:hover{background:var(--red);color:var(--white)}
/* v8: icon cards, single-row card buttons */
.ico{width:56px;height:56px;border-radius:50%;background:#fbe3e0;color:var(--red);display:grid;place-items:center;margin-bottom:12px}
.why.c3{grid-template-columns:repeat(3,1fr)}
@media(max-width:860px){.why.c3{grid-template-columns:1fr}}
.cc>a{display:block;text-decoration:none;color:inherit}
.cart{display:flex;flex-wrap:nowrap;align-items:center;gap:8px;max-width:none;padding:0 18px 18px}
.cart .ib{flex:0 0 auto;width:auto;padding:6px 11px;font-size:.85rem;border-width:2px}
.cart .ib.sy{background:var(--yellow);border-color:var(--yellow);color:var(--ink)}
.cart .ib.sy svg{color:var(--red)}
.cart .ib.ac{background:var(--red);border-color:var(--red);color:var(--white)}
.cart .ib:hover{filter:brightness(.92);background:inherit}
.cart .ib.sy:hover{background:var(--yellow)}.cart .ib.ac:hover{background:var(--red)}