/* ================================================
   Subha Sangi Engineering – Dark Forge Theme
   Lohar moto heading, welding spark, agun er alo
   ================================================ */
:root{
  --bg:#0b0b0d; --bg-2:#121216; --bg-3:#18181d;
  --steel-1:#f2f3f5; --steel-2:#b4b8bf; --steel-3:#5b6068; --steel-4:#2a2c31;
  --text:#e9e6e1; --text-2:#a9a49c;
  --fire:#ff7a1a; --fire-2:#ffb347; --fire-3:#ff3d00; --ember:#ff5a1f;
  --gold:#c9a24a;
  --wa:#1fa855; --wa-dk:#178a45;
  --line:#2c2d33; --radius:14px;
  --f-head:"Teko","Arial Narrow",sans-serif;
  --f-brand:"Black Ops One","Impact",sans-serif;
  --f-body:"Poppins",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--f-body);color:var(--text);background:var(--bg);line-height:1.7;padding-bottom:64px;overflow-x:hidden;
  background-image:radial-gradient(1200px 500px at 50% -10%,rgba(255,110,30,.10),transparent 60%),
    repeating-linear-gradient(115deg,rgba(255,255,255,.012) 0 2px,transparent 2px 7px)}
img{max-width:100%;display:block}
a{color:var(--fire-2)}
.wrap{max-width:1100px;margin:0 auto;padding:0 16px;position:relative;z-index:2}
.narrow{max-width:780px}
.center{text-align:center}
h1,h2,h3{line-height:1.05;margin:0 0 .45em;font-weight:600}
.sub{color:var(--text-2);margin-top:-.2em}
.mt{margin-top:2rem}

/* ---------- Spark canvas ---------- */
#sparks{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:40}

/* ---------- Metal text ---------- */
.metal{font-family:var(--f-head);text-transform:uppercase;letter-spacing:.04em;font-size:2.4rem;
  background:linear-gradient(180deg,var(--steel-1) 0%,#d9dce0 22%,var(--steel-2) 44%,var(--steel-3) 52%,#9ea3aa 70%,#e3e5e8 86%,#80858c 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 2px 0 #000) drop-shadow(0 0 10px rgba(255,122,26,.18));
  display:inline-block;position:relative;padding-bottom:6px}
.metal.sm{font-size:1.6rem}
.metal.big{font-family:var(--f-brand);text-transform:none;letter-spacing:.02em;font-size:2.7rem;line-height:1.05;display:block}
/* weld bead line under headings */
h2.metal::after{content:"";position:absolute;left:0;bottom:0;height:4px;width:100%;border-radius:4px;
  background:repeating-linear-gradient(90deg,#6b6f76 0 6px,#8c9097 6px 9px,#55595f 9px 12px);
  box-shadow:0 0 0 rgba(255,122,26,0)}

/* Weld reveal (shudhu JS chalu thakle lukano) */
.js .weld{clip-path:inset(-20% 100% -20% 0)}
.js .weld.welded{animation:weldIn .95s linear forwards,cool 2.2s .95s ease-out forwards}
.js h2.weld.welded::after{animation:beadHot 2.6s ease-out forwards}
@keyframes weldIn{to{clip-path:inset(-20% -2% -20% 0)}}
@keyframes cool{
  0%{filter:drop-shadow(0 2px 0 #000) drop-shadow(0 0 14px rgba(255,160,60,.95)) brightness(1.5) sepia(.6)}
  100%{filter:drop-shadow(0 2px 0 #000) drop-shadow(0 0 10px rgba(255,122,26,.18))}}
@keyframes beadHot{
  0%{background:linear-gradient(90deg,#fff6d0,#ffb347,#ff5a1f);box-shadow:0 0 14px #ff7a1a}
  100%{box-shadow:0 0 0 transparent}}

/* Reveal on scroll */
.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}

/* ---------- Top bar ---------- */
.topbar{position:sticky;top:0;z-index:50;background:rgba(11,11,13,.88);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid #26262b;display:flex;align-items:center;justify-content:space-between;padding:10px 16px;flex-wrap:wrap}
.topbar::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,transparent,var(--fire),transparent);opacity:.6}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none}
.brand-mark{font-family:var(--f-brand);color:#1a1205;width:40px;height:40px;display:grid;place-items:center;border-radius:9px;
  background:linear-gradient(145deg,#ffd27a,#ff7a1a 55%,#b33a00);box-shadow:0 0 14px rgba(255,122,26,.45),inset 0 1px 0 rgba(255,255,255,.5)}
.brand-text{font-family:var(--f-head);font-size:1.45rem;letter-spacing:.05em;text-transform:uppercase;line-height:1}
@media(max-width:480px){.brand-text{font-size:1.15rem;letter-spacing:.03em;white-space:nowrap}.brand-mark{width:36px;height:36px}.brand{gap:8px}}
.brand-text b{color:var(--fire)}
.menu-btn{background:none;border:0;color:var(--text);font-size:1.6rem;cursor:pointer}
.nav{display:none;width:100%;flex-direction:column;padding-top:8px}
.nav.open{display:flex}
.nav a{color:var(--text);text-decoration:none;padding:11px 4px;border-top:1px solid #222;font-family:var(--f-head);font-size:1.3rem;letter-spacing:.06em;text-transform:uppercase}
@media(min-width:880px){
  .menu-btn{display:none}
  .nav{display:flex;flex-direction:row;width:auto;padding:0;gap:22px}
  .nav a{border:0;padding:4px;transition:color .2s,text-shadow .2s}
  .nav a:hover{color:var(--fire-2);text-shadow:0 0 12px rgba(255,122,26,.7)}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 70px;min-height:88vh;display:flex;align-items:center;
  background:radial-gradient(900px 500px at 80% 110%,rgba(255,90,20,.28),transparent 60%),
             radial-gradient(700px 400px at 10% 120%,rgba(255,60,0,.18),transparent 60%),
             linear-gradient(180deg,#0b0b0d 0%,#101014 60%,#1a0f09 100%)}
.hero::before{content:"";position:absolute;inset:0;opacity:.35;pointer-events:none;
  background:repeating-linear-gradient(90deg,transparent 0 46px,rgba(255,255,255,.035) 46px 50px)}
.hero-fire{position:absolute;left:-10%;right:-10%;bottom:-40px;height:180px;pointer-events:none;filter:blur(18px);
  background:radial-gradient(40% 70% at 20% 100%,rgba(255,80,0,.55),transparent 70%),
             radial-gradient(35% 80% at 55% 100%,rgba(255,140,30,.45),transparent 70%),
             radial-gradient(40% 60% at 85% 100%,rgba(255,60,0,.5),transparent 70%);
  animation:flicker 3.2s ease-in-out infinite alternate}
@keyframes flicker{0%{opacity:.75;transform:scaleY(1)}35%{opacity:1;transform:scaleY(1.12)}60%{opacity:.8;transform:scaleY(.95)}100%{opacity:1;transform:scaleY(1.06)}}
.eyebrow{color:var(--fire-2);font-size:.85rem;letter-spacing:.14em;text-transform:uppercase;margin:0 0 14px}
.hero-title{margin-bottom:14px}
.tagline{display:block;margin-top:12px;font-family:var(--f-head);font-size:1.6rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--fire-2);text-shadow:0 0 18px rgba(255,122,26,.55)}
.lead{font-size:1.04rem;color:#d6d1c9;max-width:640px}
.trust{list-style:none;padding:0;margin:24px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.trust li{background:rgba(255,255,255,.04);border:1px solid #3a3b42;padding:6px 14px;border-radius:999px;font-size:.88rem;color:#d8d4cd}
@media(min-width:880px){.metal.big{font-size:4.6rem}.tagline{font-size:2rem}.metal{font-size:3rem}}

/* ---------- Buttons ---------- */
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:12px;
  font-family:var(--f-body);font-weight:600;font-size:1.02rem;text-decoration:none;border:0;cursor:pointer;min-height:52px;color:#fff;
  transition:transform .15s,box-shadow .25s,filter .2s}
.btn:active{transform:scale(.98)}
.btn-wa{background:linear-gradient(180deg,#26c262,#178a45);box-shadow:0 6px 20px rgba(31,168,85,.3)}
.btn-wa:hover{box-shadow:0 6px 26px rgba(31,168,85,.55)}
.btn-fire{background:linear-gradient(180deg,#ff9a3c,#ff6a00 55%,#d23f00);color:#1a0d02;box-shadow:0 6px 22px rgba(255,106,0,.38),inset 0 1px 0 rgba(255,255,255,.45)}
.btn-fire:hover{box-shadow:0 6px 30px rgba(255,106,0,.65),inset 0 1px 0 rgba(255,255,255,.45);filter:brightness(1.07)}
.btn-steel{background:linear-gradient(180deg,#e7e9ec,#9ca1a8 55%,#6d7178);color:#141518;box-shadow:inset 0 1px 0 #fff,0 6px 18px rgba(0,0,0,.5)}
@media(max-width:480px){.cta-row .btn{flex:1 1 100%}}

/* ---------- Sections ---------- */
.section{padding:72px 0;position:relative;scroll-margin-top:56px}
.section.alt{background:linear-gradient(180deg,var(--bg-2),#0e0e11)}
.section.alt::before,.section.forge::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,#3b3c42,transparent)}
.section.forge{background:radial-gradient(800px 380px at 50% 120%,rgba(255,90,20,.25),transparent 65%),#0d0c0c}
.lead-sm{color:#cfc9c0;max-width:720px}
.ticks{padding-left:0;list-style:none}
.ticks li{padding-left:30px;position:relative;margin:10px 0}
.ticks li::before{content:"";position:absolute;left:4px;top:.62em;width:12px;height:12px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%,#fff3c4,#ff9a3c 45%,#c43c00);box-shadow:0 0 10px var(--fire)}

/* Steel plate with rivets */
.plate,.card{position:relative;background:linear-gradient(160deg,#1e1f24,#141519 60%,#17181c);border:1px solid #2f3036;border-radius:var(--radius);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 10px 30px rgba(0,0,0,.45)}
.plate{padding:20px 22px}
.plate::before,.card::before{content:"";position:absolute;inset:8px;pointer-events:none;border-radius:8px;
  background:radial-gradient(circle,#8d9198 0 2px,#3a3c41 2.5px,transparent 3.5px) top left/14px 14px no-repeat,
             radial-gradient(circle,#8d9198 0 2px,#3a3c41 2.5px,transparent 3.5px) top right/14px 14px no-repeat,
             radial-gradient(circle,#8d9198 0 2px,#3a3c41 2.5px,transparent 3.5px) bottom left/14px 14px no-repeat,
             radial-gradient(circle,#8d9198 0 2px,#3a3c41 2.5px,transparent 3.5px) bottom right/14px 14px no-repeat}
.plate p{color:#d3cec6}

/* ---------- Cards ---------- */
.cards{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:560px){.cards{grid-template-columns:1fr 1fr}}
@media(min-width:980px){.cards{grid-template-columns:repeat(4,1fr)}}
.card{padding:22px 20px 20px;transition:transform .25s,border-color .25s,box-shadow .25s;overflow:hidden}
.card::after{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--fire-2),var(--fire-3));box-shadow:0 0 12px var(--fire)}
.card:hover{transform:translateY(-4px);border-color:#5a3a22;box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 14px 36px rgba(0,0,0,.6),0 0 24px rgba(255,106,0,.18)}
.card h3{font-family:var(--f-head);font-size:1.55rem;letter-spacing:.04em;text-transform:uppercase;color:#eceae6;margin-bottom:.25em}
.card p{margin:0;color:var(--text-2);font-size:.95rem}

/* ---------- Gallery ---------- */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}
.chip{border:1px solid #3a3b42;background:#16171b;color:var(--text);padding:8px 16px;border-radius:999px;cursor:pointer;font:inherit;font-size:.9rem}
.chip.active{background:linear-gradient(180deg,#ff9a3c,#e05a00);color:#1a0d02;border-color:transparent;box-shadow:0 0 14px rgba(255,106,0,.4)}
.gallery-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(min-width:760px){.gallery-grid{grid-template-columns:repeat(3,1fr)}}
.g-item{margin:0;background:#16171b;border:1px solid #2c2d33;border-radius:var(--radius);overflow:hidden}
.g-item img{aspect-ratio:4/3;object-fit:cover;width:100%;transition:transform .5s}
.g-item:hover img{transform:scale(1.05)}
.g-item figcaption{padding:8px 12px;font-size:.88rem;color:var(--text-2)}
.empty{background:#141519;border:1px dashed #3d3e45;border-radius:var(--radius);padding:20px;text-align:center;color:var(--text-2)}
.ba-grid{display:grid;gap:16px}
@media(min-width:760px){.ba-grid{grid-template-columns:1fr 1fr}}
.ba{background:#16171b;border:1px solid #2c2d33;border-radius:var(--radius);padding:10px}
.ba .pair{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.ba .pair div{position:relative}
.ba .pair span{position:absolute;top:6px;left:6px;background:rgba(0,0,0,.7);color:#fff;font-size:.78rem;padding:2px 8px;border-radius:6px}
.ba .pair div:last-child span{background:var(--fire);color:#1a0d02}
.ba img{aspect-ratio:4/3;object-fit:cover;border-radius:8px;width:100%}
.ba p{margin:8px 2px 2px;font-size:.9rem;color:var(--text-2)}

/* ---------- Estimator ---------- */
.est{display:grid;gap:14px;padding:24px}
.est label{display:grid;gap:6px;font-weight:500;font-size:.93rem;color:#dcd7cf}
.est input,.est select{font:inherit;padding:12px 14px;border:1px solid #3a3b42;border-radius:10px;background:#0e0f12;color:var(--text);width:100%;
  box-shadow:inset 0 2px 4px rgba(0,0,0,.5)}
.est input:focus,.est select:focus{outline:none;border-color:var(--fire);box-shadow:0 0 0 3px rgba(255,122,26,.25)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.est-result{margin-top:16px;border-radius:var(--radius);padding:20px;background:linear-gradient(160deg,#24150b,#130d09);border:1px solid #6b3a16;
  box-shadow:0 0 30px rgba(255,106,0,.18)}
.est-result .range{font-family:var(--f-head);font-size:2.6rem;line-height:1;margin:6px 0;color:var(--fire-2);text-shadow:0 0 18px rgba(255,122,26,.6)}
.note{font-size:.85rem;color:#8f8a82;margin-top:14px}

/* ---------- Rate table ---------- */
.rate-table{width:100%;border-collapse:collapse;background:#141519;border:1px solid #2f3036;border-radius:var(--radius);overflow:hidden}
.rate-table th,.rate-table td{padding:13px 14px;text-align:left;border-bottom:1px solid #26272c}
.rate-table th{background:linear-gradient(180deg,#2a2b31,#1d1e22);font-family:var(--f-head);font-size:1.25rem;letter-spacing:.06em;text-transform:uppercase;color:#d9d6d0;font-weight:500}
.rate-table td.num{font-weight:600;white-space:nowrap;color:var(--fire-2)}
.rate-table tr:last-child td{border-bottom:0}

/* ---------- Reviews ---------- */
.reviews{display:grid;gap:12px;text-align:left;margin-bottom:16px}
.review{background:#16171b;border:1px solid #2c2d33;border-left:3px solid var(--fire);border-radius:var(--radius);padding:16px;color:#d6d1c9}
.review .who{font-weight:600;margin-top:6px;font-size:.9rem;color:var(--fire-2)}
#reviews-empty{color:var(--text-2)}

/* ---------- Contact ---------- */
.contact-grid{display:grid;gap:24px}
@media(min-width:880px){.contact-grid{grid-template-columns:1fr 1fr;align-items:start}}
.map iframe{width:100%;height:340px;border:1px solid #2f3036;border-radius:var(--radius);filter:grayscale(.3) contrast(1.05)}

.footer{background:#070708;color:#8a857d;text-align:center;padding:30px 16px;border-top:1px solid #1e1e22}
.footer p{margin:4px 0}.small{font-size:.82rem}
.foot-brand{font-size:1.7rem}

/* ---------- Floating bar ---------- */
.float-bar{position:fixed;left:0;right:0;bottom:0;display:grid;grid-template-columns:1fr 1fr;z-index:60;box-shadow:0 -4px 18px rgba(0,0,0,.6)}
.float-bar a{padding:16px;text-align:center;font-weight:600;text-decoration:none;font-size:1.02rem}
.fb-call{background:linear-gradient(180deg,#ff9a3c,#e05a00);color:#1a0d02}
.fb-wa{background:linear-gradient(180deg,#26c262,#178a45);color:#fff}
@media(min-width:880px){
  body{padding-bottom:0}
  .float-bar{left:auto;right:22px;bottom:22px;grid-template-columns:auto;box-shadow:none}
  .float-bar a{border-radius:999px;padding:14px 24px;box-shadow:0 6px 22px rgba(31,168,85,.45)}
  .fb-call{display:none}
}

/* =================================================
   ROYAL GATE INTRO
   ================================================= */
#intro{display:none}
.intro-on #intro{display:block;position:fixed;inset:0;z-index:100;overflow:hidden;background:radial-gradient(circle at 50% 50%,#2a1408 0%,#120804 40%,#050505 75%)}
.intro-on body{overflow:hidden}
.intro-light{position:absolute;inset:0;opacity:0;transform:scale(.4);
  background:radial-gradient(circle at 50% 55%,#fff1c9 0%,#ffb347 12%,rgba(255,90,10,.6) 32%,rgba(40,10,0,.9) 65%,#050505 85%);
  transition:opacity 1.6s ease,transform 2.4s ease}
.gate-wrap{position:absolute;inset:0;perspective:1500px;perspective-origin:50% 45%}
.leaf{position:absolute;top:0;bottom:0;width:50.2%;transform-style:preserve-3d;
  transition:transform 2.5s cubic-bezier(.55,.05,.25,1),filter 2.5s ease}
.leaf svg{width:100%;height:100%;display:block}
.leaf-l{left:0;transform-origin:0 50%}
.leaf-r{right:0;transform-origin:100% 50%}
.intro-lock{position:absolute;left:50%;top:50%;width:88px;height:88px;margin:-44px 0 0 -44px;border-radius:50%;z-index:3;
  display:grid;place-items:center;font-family:var(--f-brand);font-size:1.9rem;color:#2a1a04;
  background:radial-gradient(circle at 35% 30%,#fff3c0,#e3b552 35%,#9c6d1c 70%,#5a3c0a);
  box-shadow:0 0 0 5px #2b2b2f,0 0 0 8px #8a6a2a,0 10px 30px rgba(0,0,0,.8);transition:transform .9s ease,opacity .9s ease,box-shadow .4s}
.intro-name{position:absolute;left:50%;transform:translateX(-50%);top:calc(50% + 66px);width:max-content;max-width:94vw;text-align:center;z-index:3;transition:opacity .8s ease;
  padding:12px 26px 10px;background:linear-gradient(180deg,rgba(8,8,9,.92),rgba(18,12,8,.92));border:1px solid #6e4c12;border-radius:10px;
  box-shadow:0 0 0 3px #111,0 0 0 4px rgba(217,169,69,.55),0 12px 30px rgba(0,0,0,.8)}
.intro-name b{display:block;font-family:var(--f-brand);font-weight:400;font-size:2rem;white-space:nowrap;letter-spacing:.03em;
  background:linear-gradient(180deg,#fff,#c9ccd1 45%,#6b7078 52%,#dfe1e4 80%);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 2px 0 #000)}
.intro-name i{display:block;font-style:normal;font-family:var(--f-head);font-size:1.4rem;letter-spacing:.4em;color:var(--fire-2);text-shadow:0 0 14px rgba(255,122,26,.8)}
@media(min-width:880px){.intro-name b{font-size:3.4rem}.intro-name i{font-size:1.8rem}}
.intro-skip{position:absolute;right:16px;bottom:18px;z-index:5;background:rgba(255,255,255,.08);color:#ddd;border:1px solid #444;border-radius:999px;padding:8px 16px;font:inherit;font-size:.85rem;cursor:pointer}

/* stages (JS class add kore) */
#intro.s-weld .intro-lock{box-shadow:0 0 0 5px #2b2b2f,0 0 0 8px #ffb347,0 0 40px 10px rgba(255,140,40,.9)}
#intro.s-open .intro-lock{transform:scale(1.4);opacity:0}
#intro.s-open .intro-name{opacity:0}
#intro.s-open .intro-light{opacity:1;transform:scale(1.4)}
#intro.s-open .leaf-l{transform:rotateY(-104deg);filter:brightness(.55)}
#intro.s-open .leaf-r{transform:rotateY(104deg);filter:brightness(.55)}
#intro.s-done{opacity:0;transition:opacity .7s ease;pointer-events:none}

@media (prefers-reduced-motion: reduce){
  .js .weld,.js .weld.welded{clip-path:none;animation:none}
  .js .reveal{opacity:1;transform:none;transition:none}
  .hero-fire{animation:none}
}