:root{
  --bg:#F2F5F8;
  --surface:#FFFFFF;
  --text:#0F1C2E;
  --muted:#53627A;
  --line:#D6DDE6;
  --deep:#0F1C2E;
  --deep-2:#1B2B42;
  --on-deep:#FFFFFF;
  --on-deep-muted:#B7C3D4;
  --accent:#F5A800;
  --on-accent:#0F1C2E;
  --inv-bg:#0F1C2E;
  --inv-text:#FFFFFF;
  --display:"Bricolage Grotesque","Hind Siliguri",system-ui,sans-serif;
  --body:"Hind Siliguri",system-ui,-apple-system,"Segoe UI",sans-serif;
  --pad:clamp(18px,5vw,64px);
  --gutter:max(var(--pad),calc((100vw - 1180px)/2 + var(--pad)));
  color-scheme:light;
}
:root[data-theme=dark]{
  --bg:#0C1526;
  --surface:#122038;
  --text:#E8EEF6;
  --muted:#9AAAC1;
  --line:#22324B;
  --deep:#070E1B;
  --deep-2:#14223A;
  --inv-bg:#E8EEF6;
  --inv-text:#0C1526;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;background:var(--bg);color:var(--text);font:400 17px/1.7 var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
button{font-family:inherit}
h1,h2,h3{font-family:var(--display);line-height:1.1;margin:0;letter-spacing:-.02em}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}

.notice{background:var(--accent);color:var(--on-accent);text-align:center;padding:8px 16px;font-weight:600;font-size:15px}
.notice a{text-decoration:underline;text-underline-offset:3px}

/* nav */
.nav{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:20px;padding:12px var(--gutter);background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand{font:800 19px var(--display);text-decoration:none;letter-spacing:-.02em;margin-right:auto}
.nav nav{display:flex;align-items:center;gap:26px}
.nav nav a{text-decoration:none;font-weight:500;font-size:16px;color:var(--muted)}
.nav nav a:hover{color:var(--text)}
.nav .nav-cta{background:var(--inv-bg);color:var(--inv-text);padding:7px 18px;border-radius:999px}
.nav .nav-cta:hover{color:var(--inv-text);opacity:.88}
.nav-tools{display:flex;align-items:center;gap:6px}
.theme{width:40px;height:40px;border-radius:50%;border:1.5px solid var(--line);background:transparent;cursor:pointer;display:grid;place-items:center;color:var(--text)}
.theme:hover{border-color:var(--text)}
.theme span{width:16px;height:16px;border-radius:50%;border:2px solid currentColor;background:linear-gradient(90deg,currentColor 50%,transparent 50%)}
.burger{display:none;background:none;border:0;width:44px;height:44px;padding:0;cursor:pointer;position:relative}
.burger span{position:absolute;left:10px;right:10px;height:2px;background:var(--text);transition:transform .2s}
.burger span:first-child{top:17px}.burger span:last-child{top:25px}
.burger[aria-expanded=true] span:first-child{transform:translateY(4px) rotate(45deg)}
.burger[aria-expanded=true] span:last-child{transform:translateY(-4px) rotate(-45deg)}

/* banner slider */
.slider{position:relative;background:var(--deep);overflow:hidden;min-height:clamp(260px,36vw,430px)}
.slide{position:absolute;inset:0;display:flex;align-items:center;background:var(--deep) center/cover no-repeat;opacity:0;visibility:hidden;transition:opacity .7s ease,visibility .7s}
.slide.on{opacity:1;visibility:visible;position:relative;min-height:inherit}
.slide-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,14,27,.94) 0%,rgba(7,14,27,.62) 55%,rgba(7,14,27,.2) 100%)}
.slide-body{position:relative;padding:48px var(--gutter) 68px;max-width:calc(760px + var(--gutter));color:#fff}
.slide-body h2{font-size:clamp(28px,4.6vw,54px);font-weight:800}
.slide-body p{margin:14px 0 26px;font-size:clamp(16px,1.8vw,20px);color:#D5DEEA;max-width:56ch}
.dots{position:absolute;left:var(--gutter);bottom:22px;display:flex;gap:8px;z-index:2}
.dots button{width:28px;height:6px;border:0;border-radius:3px;background:rgba(255,255,255,.35);cursor:pointer;padding:0}
.dots button.on{background:var(--accent)}

/* buttons */
.btn{display:inline-block;background:var(--accent);color:var(--on-accent);font:600 16px var(--body);padding:12px 26px;border-radius:999px;text-decoration:none;border:2px solid var(--accent);cursor:pointer;transition:transform .15s}
.btn:hover{transform:translateY(-2px)}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--text)}

/* hero */
.hero{display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(24px,5vw,72px);align-items:center;padding:clamp(44px,7vw,100px) var(--gutter);background-image:radial-gradient(var(--line) 1.2px,transparent 1.2px);background-size:24px 24px;background-position:0 0}
.status{display:inline-flex;align-items:center;gap:10px;margin:0 0 18px;padding:4px 14px 4px 10px;background:var(--surface);border:1px solid var(--line);border-radius:999px;font-weight:500;font-size:15px;color:var(--muted)}
.status i{width:10px;height:10px;border-radius:50%;background:#1FA463;box-shadow:0 0 0 4px rgba(31,164,99,.22)}
.hero h1{font-size:clamp(40px,7.2vw,90px);font-weight:800}
.role{font:600 clamp(20px,2.6vw,30px) var(--display);margin:14px 0 0;color:var(--muted)}
.lead{max-width:50ch;font-size:19px;margin:20px 0 30px}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.portrait{aspect-ratio:4/5;background:var(--deep);border-radius:6px;display:grid;place-items:center;position:relative;max-width:420px;width:100%;justify-self:end;isolation:isolate}
.portrait::after{content:"";position:absolute;right:-14px;bottom:-14px;width:62%;height:62%;background:var(--accent);z-index:-1;border-radius:6px}
.portrait img{width:100%;height:100%;object-fit:cover;border-radius:6px}
.portrait span{font:800 clamp(90px,14vw,180px) var(--display);color:var(--accent)}

/* stats */
.stats{display:flex;flex-wrap:wrap;background:var(--deep);color:var(--on-deep);padding:0 var(--gutter)}
.stats div{flex:1 1 220px;padding:30px 24px 30px 0}
.stats div+div{padding-left:24px;border-left:1px solid var(--deep-2)}
.stats strong{display:block;font:800 clamp(34px,4.5vw,52px) var(--display);color:var(--accent);line-height:1}
.stats span{display:block;margin-top:8px;color:var(--on-deep-muted)}

/* sections */
.block{padding:clamp(52px,7vw,96px) var(--gutter)}
.block.alt{background:var(--surface);border-block:1px solid var(--line)}
.block>h2{font-size:clamp(28px,4vw,46px);font-weight:800;margin-bottom:36px;max-width:22ch}
.prose p{margin:0 0 1em;max-width:62ch}
.about{display:grid;grid-template-columns:1.5fr 1fr;gap:clamp(24px,5vw,64px);align-items:start}
.facts{margin:0;border-left:3px solid var(--accent);padding-left:22px}
.facts dt{font-weight:600;color:var(--muted);font-size:15px}
.facts dd{margin:0 0 16px}
.facts a{text-decoration:none;border-bottom:1px solid var(--line)}

.services{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;column-gap:clamp(24px,5vw,64px)}
.services li{display:flex;gap:18px;padding:24px 0;border-top:1px solid var(--line)}
.ic{flex:none;width:52px;height:52px;border-radius:50%;background:var(--deep);display:grid;place-items:center;font-size:24px}
.services h3{font-size:22px;font-weight:600}
.services p{margin:6px 0 0;color:var(--muted)}

/* work */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:-12px 0 24px}
.chips button{background:transparent;border:1.5px solid var(--line);color:var(--muted);padding:5px 16px;border-radius:999px;font-weight:500;font-size:15px;cursor:pointer}
.chips button:hover{border-color:var(--text);color:var(--text)}
.chips button.on{background:var(--inv-bg);border-color:var(--inv-bg);color:var(--inv-text)}
.work{border-bottom:1px solid var(--line)}
.proj{display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;padding:24px 14px;border-top:1px solid var(--line);text-decoration:none;transition:background .2s,padding .2s}
.proj[hidden]{display:none}
a.proj:hover{background:var(--surface);padding-left:24px}
.proj img{width:132px;height:84px;object-fit:cover;border-radius:4px}
.proj h3{font-size:clamp(20px,2.4vw,28px);font-weight:800}
.proj p{margin:6px 0 0;color:var(--muted);max-width:60ch}
.proj-side{display:flex;flex-direction:column;align-items:flex-end;gap:6px;text-align:right}
.type{background:var(--accent);color:var(--on-accent);font-weight:600;font-size:14px;padding:2px 12px;border-radius:999px;white-space:nowrap}
.host{font-size:14px;color:var(--muted)}
.proj:not(:has(img)){grid-template-columns:1fr auto}

/* process: a real sequence, so numbered */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:28px;counter-reset:step}
.steps li{counter-increment:step;position:relative;padding-top:56px}
.steps li::before{content:counter(step);position:absolute;top:0;left:0;width:40px;height:40px;border-radius:50%;background:var(--accent);color:var(--on-accent);font:800 18px/40px var(--display);text-align:center}
.steps li::after{content:"";position:absolute;top:19px;left:52px;right:-14px;height:2px;background:var(--line)}
.steps li:last-child::after{display:none}
.steps h3{font-size:22px;font-weight:600}
.steps p{margin:8px 0 0;color:var(--muted)}

/* skills and tools */
.skills{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:26px clamp(24px,5vw,64px)}
.sk-top{display:flex;justify-content:space-between;font-weight:500;margin-bottom:8px}
.sk-top b{color:var(--muted);font-weight:500}
.bar{height:8px;background:var(--line);border-radius:4px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--text);border-radius:4px}
.tools{list-style:none;margin:36px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.tools li{border:1.5px solid var(--line);background:var(--surface);padding:3px 16px;border-radius:999px;font-weight:500;font-size:15px}
.alt .tools li{background:var(--bg)}

/* reviews */
.quotes{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:36px clamp(24px,5vw,64px)}
.quote{margin:0;border-left:3px solid var(--accent);padding-left:22px}
.quote blockquote{margin:0;font:600 clamp(19px,2vw,23px)/1.45 var(--display);letter-spacing:-.01em}
.quote figcaption{margin-top:14px;display:flex;flex-direction:column;color:var(--muted);font-size:15px}
.quote figcaption b{color:var(--text);font-weight:600}

/* faq */
.faq{max-width:780px;border-bottom:1px solid var(--line)}
.faq details{border-top:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;font:600 clamp(18px,2vw,21px) var(--display);position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font:400 28px/1 var(--body);color:var(--muted);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg);color:var(--accent)}
.faq p{margin:0 0 22px;color:var(--muted);max-width:62ch}

/* contact */
.contact{background:var(--deep);color:var(--on-deep)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,64px)}
.contact .prose{color:var(--on-deep-muted)}
.reach{list-style:none;margin:20px 0;padding:0}
.reach li{margin:10px 0}
.reach a{color:var(--accent);font-weight:600;text-decoration:none;font-size:19px}
.reach a:hover{text-decoration:underline}
.reach .addr{color:var(--on-deep-muted)}
.social{display:flex;flex-wrap:wrap;gap:8px 20px}
.social a{color:var(--on-deep);text-underline-offset:4px}
.form{background:var(--surface);color:var(--text);padding:26px;border-radius:6px;display:grid;gap:16px}
.form label{display:grid;gap:6px;font-weight:600;font-size:15px}
.form input,.form textarea{font:400 17px var(--body);padding:11px 12px;border:1.5px solid var(--line);border-radius:4px;background:var(--bg);color:var(--text);width:100%}
.form input:focus,.form textarea:focus{border-color:var(--text);outline:0}
.form .btn{justify-self:start}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0}
.flash{margin:0;padding:10px 14px;border-radius:4px;font-weight:500}
.flash.ok{background:#E3F6EC;color:#12663D}
.flash.err{background:#FDE8E6;color:#9C2A1E}

.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;padding:22px var(--gutter) 90px;font-size:15px;color:var(--muted)}
.foot a{text-underline-offset:3px}

/* floating WhatsApp */
.wa{position:fixed;right:16px;bottom:16px;z-index:40;display:inline-flex;align-items:center;gap:8px;background:#1FA463;color:#fff;font-weight:600;padding:11px 18px;border-radius:999px;text-decoration:none;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.wa:hover{filter:brightness(1.08)}

/* motion: one entrance, on the hero text */
@media (prefers-reduced-motion:no-preference){
  .hero-text{animation:rise .7s ease both}
  @keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.slide,.btn,.proj{transition:none}}

@media (max-width:820px){
  .burger{display:block}
  .nav nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--bg);border-bottom:1px solid var(--line);display:none}
  .nav nav.open{display:flex}
  .nav nav a{padding:14px var(--pad);border-top:1px solid var(--line)}
  .nav .nav-cta{border-radius:0}
  .hero,.about,.services,.skills,.contact-grid{grid-template-columns:1fr}
  .portrait{justify-self:start;max-width:300px;order:-1}
  .proj,.proj:not(:has(img)){grid-template-columns:1fr}
  .proj img{width:100%;height:auto;aspect-ratio:16/9}
  .proj-side{align-items:center;text-align:left;flex-direction:row;flex-wrap:wrap;gap:12px}
  .stats div,.stats div+div{padding:22px 0;border-left:0;border-bottom:1px solid var(--deep-2)}
  .steps li::after{display:none}
  .wa span{display:none}
  .wa{padding:14px}
}