/* Nikki Thai Aluminium – shared styles (mobile-first, responsive) */
:root{--navy:#0c2d62;--navy2:#234373;--red:#f00;--gray:#eff0f2;--text:#555;--w:1170px;color-scheme:light}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Poppins,"Segoe UI",Roboto,Arial,sans-serif;color:var(--text);background:#fff;line-height:1.7;overflow-x:hidden}
img{max-width:100%;display:block}a{color:inherit}
.wrap{max-width:var(--w);margin:0 auto;padding:0 20px}
.sec{padding:64px 0}.gray{background:var(--gray)}
.h2{font-size:clamp(1.6rem,4vw,2.2rem);font-weight:500;color:var(--navy);line-height:1.25;text-align:center;margin-bottom:12px}
.h2 b{font-weight:600}.sub{text-align:center;max-width:620px;margin:0 auto 36px;color:#222}
.eyebrow{color:var(--red);font-weight:600;letter-spacing:3px;font-size:.8rem;margin-bottom:6px}
.btn{display:inline-block;background:var(--red);color:#fff;padding:13px 30px;border-radius:3px;text-decoration:none;font-size:.9rem;border:0;cursor:pointer;font-family:inherit;transition:.25s}
.btn:hover{background:#c00;transform:translateY(-2px)}.btn.navy{background:var(--navy)}.btn.navy:hover{background:#071c40}
.btn.ghost{background:transparent;border:2px solid rgba(255,255,255,.7)}
/* header */
header{position:sticky;top:0;z-index:50;background:#fff;box-shadow:0 2px 14px rgba(0,0,0,.08)}
.hb{display:flex;align-items:center;justify-content:space-between;height:76px}
.hb .logo img{height:56px;width:auto}
nav ul{display:flex;gap:26px;list-style:none}
nav a{text-decoration:none;color:#222;font-size:.78rem;font-weight:600;letter-spacing:.6px;text-transform:uppercase;padding:6px 0;border-bottom:2px solid transparent;transition:.2s}
nav a:hover,nav a.on{color:var(--red);border-color:var(--red)}
.burger{display:none;width:44px;height:44px;border:0;background:none;cursor:pointer}
.burger i,.burger i::before,.burger i::after{display:block;width:26px;height:3px;background:var(--navy);position:relative;border-radius:2px;transition:.25s;content:""}
.burger i::before{position:absolute;top:-8px}.burger i::after{position:absolute;top:8px}
.burger.open i{background:transparent}.burger.open i::before{top:0;transform:rotate(45deg)}.burger.open i::after{top:0;transform:rotate(-45deg)}
/* hero */
.hero{min-height:min(82vh,640px);display:flex;align-items:center;color:#fff;background:linear-gradient(90deg,rgba(8,16,30,.88),rgba(8,16,30,.35)),url(../images/silver-profiles.jpg) center/cover}
.hero h3{font-size:clamp(1rem,2.4vw,1.4rem);font-weight:600}.hero h2{font-size:clamp(1.8rem,5.5vw,3.6rem);font-weight:300;line-height:1.15}
.hero h1{font-size:clamp(2.1rem,7vw,4.2rem);font-weight:800;letter-spacing:1px;line-height:1.1;margin-bottom:22px}
.badge{display:inline-block;border:1px solid rgba(255,255,255,.6);padding:5px 14px;border-radius:30px;font-size:.78rem;letter-spacing:1px;margin-bottom:24px}
.phero{background:linear-gradient(rgba(12,45,98,.85),rgba(12,45,98,.85)),url(../images/extrusion-line.jpg) center/cover;color:#fff;text-align:center;padding:70px 20px}
.phero h1{font-weight:600;font-size:clamp(1.8rem,5vw,2.8rem)}.phero p{opacity:.85}
/* layout blocks */
.two{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.two img{width:100%;border-radius:6px;box-shadow:0 14px 40px rgba(0,0,0,.18);aspect-ratio:4/3;object-fit:cover}
.two p{margin-bottom:12px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px;margin-top:28px}
.stats div{background:var(--gray);padding:18px;text-align:center;border-radius:6px}.stats b{display:block;font-size:1.5rem;color:var(--red)}
.vg{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.vc{background:#f4f4f4;box-shadow:0 10px 40px rgba(0,0,0,.07);padding:36px 28px;text-align:center;border-radius:4px;transition:.3s}
.vc:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(0,0,0,.14)}
.vc svg{width:84px;height:84px;margin:0 auto 18px;display:block}
.vc h4{letter-spacing:3px;font-weight:500;color:#777;margin-bottom:14px}.vc p{color:#7a7a7a;font-size:.98rem}
.pcard{display:grid;grid-template-columns:1fr 1fr;background:#fff;min-height:440px;max-width:var(--w);margin:0 auto;box-shadow:0 10px 40px rgba(0,0,0,.08)}
.pcard .pl{padding:48px 56px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.pcard h3{font-size:1.8rem;font-weight:500;color:var(--navy);margin-bottom:14px}.pcard p{margin-bottom:22px}
.pcard .pr{background:#abb5c4 center/cover}
.trust{background:var(--navy2);color:#fff;min-height:240px;display:flex;align-items:center}
.trust .wrap{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center;width:100%}
.vid{width:92px;height:92px;background:#000;display:grid;place-items:center;cursor:pointer;transition:.25s}.vid:hover{background:var(--red)}
.trust h2{font-weight:400;font-size:clamp(1.4rem,3vw,1.95rem);line-height:1.4;max-width:470px}
/* testimonial slider: slides travel left → right */
.slider{max-width:720px;margin:0 auto;text-align:center;height:380px;position:relative;overflow:hidden}
.sl{position:absolute;top:0;left:0;width:100%;padding:0 10px;transform:translateX(-100%);opacity:0;transition:transform .8s ease,opacity .8s ease}
.sl.on{transform:none;opacity:1}.sl.out{transform:translateX(100%);opacity:0}.sl.nt{transition:none}
.av{width:78px;height:78px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:1.6rem;font-weight:600;margin:6px auto 30px}
.sl .q{font-size:1.2rem;font-weight:500;color:var(--navy);line-height:1.65;margin-bottom:28px}
.sl b{display:block;color:var(--navy)}.sl span{font-size:1.25rem;font-weight:500;color:#777}
.dots{position:absolute;bottom:0;left:0;right:0;display:flex;gap:12px;justify-content:center}
.dots i{width:11px;height:11px;border-radius:50%;border:2px solid #000;cursor:pointer}.dots i.on{background:#000}
.cta{background:var(--navy);color:#eef0f4;border-radius:10px;padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;position:relative;z-index:2;margin-top:-60px}
.cta h3{font-size:1.7rem;line-height:1.25}.cta .tel{display:flex;align-items:center;gap:14px}.cta .tel b{display:block;color:var(--red);font-size:1.5rem}
.cta .r{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}
.app,.pt{position:relative;overflow:hidden;border-radius:6px;aspect-ratio:4/3;background:#999}
.app img,.pt img{width:100%;height:100%;object-fit:cover;transition:transform .6s}.app:hover img,.pt:hover img{transform:scale(1.08)}
.app span,.pt span{position:absolute;left:0;right:0;bottom:0;padding:34px 16px 14px;color:#fff;font-weight:600;background:linear-gradient(transparent,rgba(0,0,0,.75))}
.pt p{position:absolute;inset:auto 0 0;color:#fff;padding:0 16px 14px;font-size:.85rem;opacity:.9}.pt span{padding-bottom:40px}
/* gallery */
.gal{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:210px;gap:12px}
.gal a{position:relative;overflow:hidden;border-radius:6px;background:#999;cursor:zoom-in}
.gal a:first-child{grid-column:span 2;grid-row:span 2}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .6s}.gal a:hover img{transform:scale(1.1)}
.gal a::after{content:"+";position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-size:2.6rem;background:rgba(12,45,98,.55);opacity:0;transition:.3s}.gal a:hover::after{opacity:1}
.lb{position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:100;display:none;align-items:center;justify-content:center;padding:20px}
.lb.on{display:flex}.lb img{max-height:86vh;max-width:92vw;border-radius:4px}
.lb button{position:absolute;background:rgba(255,255,255,.15);color:#fff;border:0;width:46px;height:46px;border-radius:50%;font-size:1.6rem;cursor:pointer}
.lb .x{top:18px;right:18px}.lb .p{left:14px;top:50%}.lb .n{right:14px;top:50%}
/* contact */
.cf{display:grid;grid-template-columns:1fr 1.3fr;gap:40px}
.info div{margin-bottom:22px}.info b{display:block;color:var(--red)}
form label{display:block;font-size:.85rem;margin-bottom:14px;color:#222}
input,textarea{width:100%;padding:12px 14px;border:1px solid #ccd;border-radius:3px;font:inherit;margin-top:4px}
input:focus,textarea:focus{outline:2px solid var(--navy);border-color:transparent}
.map{width:100%;height:240px;border:0;margin:8px 0}
/* footer */
footer{background:var(--gray);padding:56px 0 0;font-size:.95rem}
.fc{display:grid;grid-template-columns:1.5fr .9fr 1.9fr;gap:40px;padding-bottom:28px}
.brand{font-size:1.8rem;color:var(--red);line-height:1.25;margin-bottom:18px}.brand b{font-weight:700}
.fc h5{font-family:"Fjalla One",Impact,sans-serif;font-weight:400;font-size:1rem;margin-bottom:14px;color:#777}
.fc a{display:block;text-decoration:none;margin-bottom:5px}.fc a:hover{color:var(--red)}
.fc .red{color:var(--red);font-weight:700}.fc .ph{color:#000;font-weight:600;font-size:1.15rem}
.fb{border-top:1px solid #9aa0a8;padding:16px 0 28px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:.9rem}
.soc{display:flex;gap:10px}.soc a{margin:0}
.top{position:fixed;right:18px;bottom:18px;width:42px;height:42px;background:#9a9a9a;color:#fff;border:0;border-radius:3px;font-size:1.2rem;cursor:pointer;opacity:0;pointer-events:none;transition:.3s;z-index:40}.top.on{opacity:1;pointer-events:auto}
.rv{opacity:0;transform:translateY(26px);transition:.7s}.rv.in{opacity:1;transform:none}
/* responsive */
@media(max-width:1000px){nav ul{gap:16px}.gal{grid-template-columns:repeat(3,1fr)}.fc{grid-template-columns:1fr 1fr}}
@media(max-width:860px){
.burger{display:block}
nav{position:absolute;top:76px;left:0;right:0;background:#fff;max-height:0;overflow:hidden;transition:max-height .35s;box-shadow:0 12px 20px rgba(0,0,0,.1)}
nav.open{max-height:420px}nav ul{flex-direction:column;gap:0;padding:8px 20px 16px}nav li a{display:block;padding:13px 0;border-bottom:1px solid #eee}
.two,.pcard,.cf,.trust .wrap,.vg{grid-template-columns:1fr}
.pcard .pr{min-height:260px;order:-1}.pcard .pl{padding:32px 24px}.sec{padding:48px 0}
.cta{padding:30px 24px;margin-top:-40px}.slider{height:430px}.trust h2{max-width:none}}
@media(max-width:600px){.gal{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px}.gal a:first-child{grid-column:span 2;grid-row:span 1}
.fc{grid-template-columns:1fr}.slider{height:480px}.hb{height:68px}.hb .logo img{height:48px}nav{top:68px}.cta h3{font-size:1.35rem}.fb{justify-content:center;text-align:center}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}