:root{
  --bg:#08090D;
  --bg-raise:#0E1017;
  --surface:#12141C;
  --surface-2:#171A24;
  --border:rgba(255,255,255,0.08);
  --border-strong:rgba(255,255,255,0.14);
  --text:#F2F3F8;
  --text-dim:#9299AB;
  --text-faint:#5C6377;
  --cyan:#45E8D4;
  --cyan-dim:#45E8D433;
  --violet:#8B6BFF;
  --violet-dim:#8B6BFF33;
  --amber:#FFB86B;
  --grad-1: linear-gradient(120deg, var(--cyan), var(--violet));
  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;
  --maxw:1240px;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important;}
}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.6;
  overflow-x:hidden;
  position:relative;
}
body::before{
  content:'';
  position:fixed; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 32px; position:relative; z-index:1;}
img,svg{display:block; max-width:100%;}
a{color:inherit; text-decoration:none;}
h1,h2,h3,h4{font-family:var(--font-display); font-weight:600; letter-spacing:-0.01em;}
.mono{font-family:var(--font-mono);}
.eyebrow{
  font-family:var(--font-mono); font-size:12px; letter-spacing:0.14em; text-transform:uppercase;
  color:var(--cyan); display:flex; align-items:center; gap:10px; margin-bottom:18px;
}
.eyebrow::before{content:''; width:20px; height:1px; background:var(--cyan);}
.section{padding:120px 0; position:relative;}
.section-head{max-width:640px; margin-bottom:64px;}
.section-head h2{font-size:clamp(28px,4vw,42px); margin-bottom:16px;}
.section-head p{color:var(--text-dim); font-size:16px;}

/* cursor glow */
#glow{
  position:fixed; width:420px; height:420px; border-radius:50%;
  background:radial-gradient(circle, rgba(69,232,212,0.06), transparent 70%);
  pointer-events:none; z-index:0; transform:translate(-50%,-50%);
  transition:opacity .3s;
}

/* reveal */
.reveal{opacity:0; transform:translateY(28px); transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1; transform:translateY(0);}

/* ===== NAV ===== */
header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  padding:22px 0;
  transition:background .35s ease, backdrop-filter .35s ease, padding .35s ease, border-color .35s ease;
  border-bottom:1px solid transparent;
}
header.scrolled{
  padding:14px 0;
  background:rgba(8,9,13,0.72);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--border);
}
nav.wrap{display:flex; align-items:center; justify-content:space-between;}
.logo{font-family:var(--font-display); font-weight:700; font-size:20px; letter-spacing:-0.02em; display:flex; align-items:center; gap:10px;}
.logo .mark{
  width:34px; height:34px; border-radius:9px; display:flex; align-items:center; justify-content:center;
  background:var(--grad-1); color:#08090D; font-size:13px; font-weight:700; font-family:var(--font-mono);
}
.navlinks{display:flex; align-items:center; gap:36px; font-size:14px; color:var(--text-dim);}
.navlinks a{position:relative; padding:4px 0; transition:color .2s;}
.navlinks a:hover{color:var(--text);}
.navlinks a::after{content:''; position:absolute; left:0; bottom:-2px; width:0; height:1px; background:var(--cyan); transition:width .25s;}
.navlinks a:hover::after{width:100%;}
.btn{
  display:inline-flex; align-items:center; gap:8px; font-size:14px; font-weight:500; padding:11px 22px;
  border-radius:999px; cursor:pointer; transition:transform .25s, box-shadow .25s, background .25s, border-color .25s;
  font-family:var(--font-body); border:1px solid transparent;
}
.btn-primary{background:var(--text); color:var(--bg);}
.btn-primary:hover{transform:translateY(-2px); box-shadow:0 8px 30px rgba(69,232,212,0.18);}
.btn-ghost{border-color:var(--border-strong); color:var(--text);}
.btn-ghost:hover{border-color:var(--cyan); color:var(--cyan); transform:translateY(-2px);}
.navcta{display:none;}
@media(min-width:900px){.navcta{display:inline-flex;}}
.navlinks{display:none;}
@media(min-width:1080px){.navlinks{display:flex;}}
.burger{display:flex; width:38px; height:38px; border:1px solid var(--border-strong); border-radius:8px; align-items:center; justify-content:center; cursor:pointer;}
@media(min-width:1080px){.burger{display:none;}}
.mobile-menu{position:fixed; inset:0; background:var(--bg); z-index:99; display:none; flex-direction:column; padding:100px 32px 40px; gap:28px;}
.mobile-menu.open{display:flex;}
.mobile-menu a{font-family:var(--font-display); font-size:26px;}

/* ===== HERO ===== */
.hero{padding:180px 0 100px; position:relative; min-height:92vh; display:flex; align-items:center;}
.hero-grid{display:grid; grid-template-columns:1fr; gap:60px; align-items:center;}
@media(min-width:980px){.hero-grid{grid-template-columns:1.05fr 0.95fr;}}
.hero h1{font-size:clamp(38px,5.4vw,64px); line-height:1.06; margin-bottom:24px;}
.hero h1 .accent{background:var(--grad-1); -webkit-background-clip:text; background-clip:text; color:transparent;}
.hero p.lead{font-size:17px; color:var(--text-dim); max-width:520px; margin-bottom:36px;}
.hero-ctas{display:flex; gap:14px; flex-wrap:wrap;}

/* dashboard visual */
.panel{
  background:linear-gradient(180deg, var(--surface), var(--bg-raise));
  border:1px solid var(--border); border-radius:18px; padding:26px;
  position:relative; overflow:hidden;
}
.panel::before{
  content:''; position:absolute; top:-40%; right:-30%; width:60%; height:80%;
  background:radial-gradient(circle, var(--cyan-dim), transparent 70%); filter:blur(10px); pointer-events:none;
}
.panel-label{
  display:flex; align-items:center; justify-content:space-between; margin-bottom:20px;
}
.tag{
  font-family:var(--font-mono); font-size:10.5px; letter-spacing:0.08em; text-transform:uppercase;
  color:var(--amber); border:1px solid rgba(255,184,107,0.35); background:rgba(255,184,107,0.08);
  padding:4px 9px; border-radius:6px;
}
.metric-grid{display:grid; grid-template-columns:1fr 1fr; gap:14px; margin-bottom:18px; position:relative; z-index:1;}
.metric-card{background:var(--surface-2); border:1px solid var(--border); border-radius:12px; padding:16px;}
.metric-card .k{font-family:var(--font-mono); font-size:11px; color:var(--text-faint); text-transform:uppercase; letter-spacing:.08em; margin-bottom:8px;}
.metric-card .v{font-family:var(--font-mono); font-size:24px; font-weight:600;}
.metric-card .v.up{color:var(--cyan);}
.metric-card .v.up2{color:var(--violet);}
.metric-card .delta{font-size:11.5px; color:var(--text-dim); margin-top:4px;}
.chartbox{background:var(--surface-2); border:1px solid var(--border); border-radius:12px; padding:14px; position:relative; z-index:1; height:150px;}

/* ===== ABOUT TIMELINE ===== */
.timeline{position:relative; padding-top:20px;}
.timeline-track{
  display:flex; gap:0; overflow-x:auto; padding-bottom:20px; scrollbar-width:thin;
  scrollbar-color:var(--border-strong) transparent;
}
.tl-node{
  flex:0 0 auto; width:210px; position:relative; padding:0 22px 0 0; opacity:0; transform:translateY(16px);
  transition:opacity .55s ease, transform .55s ease;
}
.tl-node.in{opacity:1; transform:translateY(0);}
.tl-node .dot{
  width:12px; height:12px; border-radius:50%; background:var(--bg); border:2px solid var(--cyan); margin-bottom:16px;
  position:relative;
}
.tl-node .dot::after{content:''; position:absolute; top:5px; left:12px; width:198px; height:1px; background:var(--border);}
.tl-node:last-child .dot::after{display:none;}
.tl-node .idx{font-family:var(--font-mono); font-size:11px; color:var(--text-faint); margin-bottom:6px; display:block;}
.tl-node h4{font-size:15.5px; font-weight:600; margin-bottom:6px;}
.tl-node p{font-size:13px; color:var(--text-dim);}

/* ===== EXPERTISE CARDS ===== */
.grid-cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:18px;}
.xcard{
  background:var(--surface); border:1px solid var(--border); border-radius:16px; padding:26px;
  transition:transform .3s ease, border-color .3s ease, background .3s ease;
  position:relative; overflow:hidden;
}
.xcard::before{
  content:''; position:absolute; inset:0; opacity:0; transition:opacity .3s;
  background:radial-gradient(320px circle at var(--mx,50%) var(--my,0%), rgba(69,232,212,0.08), transparent 60%);
}
.xcard:hover::before{opacity:1;}
.xcard:hover{transform:translateY(-6px); border-color:var(--border-strong);}
.xcard .num{font-family:var(--font-mono); color:var(--text-faint); font-size:13px; margin-bottom:18px; display:block;}
.xcard h3{font-size:18px; margin-bottom:10px;}
.xcard p{font-size:13.5px; color:var(--text-dim);}

/* ===== SKILL PATHWAY ===== */
.pathway{position:relative; max-width:560px; margin:0 auto; padding-left:8px;}
.pathway::before{
  content:''; position:absolute; left:15px; top:10px; bottom:10px; width:2px;
  background:linear-gradient(180deg, var(--border-strong), var(--cyan) 60%, var(--violet));
}
.pw-node{position:relative; padding:0 0 44px 46px; opacity:0; transform:translateX(-14px); transition:opacity .5s, transform .5s;}
.pw-node.in{opacity:1; transform:translateX(0);}
.pw-node:last-child{padding-bottom:0;}
.pw-node .pdot{position:absolute; left:8px; top:2px; width:16px; height:16px; border-radius:50%; background:var(--bg); border:2px solid var(--border-strong);}
.pw-node span{font-family:var(--font-display); font-size:16px; color:var(--text-dim);}
.pw-node.final .pdot{border-color:var(--violet); box-shadow:0 0 0 6px var(--violet-dim), 0 0 24px var(--violet);}
.pw-node.final span{
  font-size:22px; font-weight:700; background:var(--grad-1); -webkit-background-clip:text; background-clip:text; color:transparent;
}
.pw-node.active .pdot{border-color:var(--cyan); box-shadow:0 0 0 5px var(--cyan-dim);}
.pw-node.active span{color:var(--text);}

/* ===== PROJECTS ===== */
.pcard{
  background:var(--surface); border:1px solid var(--border); border-radius:16px; padding:26px; display:flex; flex-direction:column; gap:14px;
  transition:transform .3s, border-color .3s;
}
.pcard:hover{transform:translateY(-6px); border-color:var(--border-strong);}
.pcard .cat{font-family:var(--font-mono); font-size:10.5px; letter-spacing:.08em; text-transform:uppercase; color:var(--violet);}
.pcard h3{font-size:19px;}
.pcard .row{font-size:13px; color:var(--text-dim);}
.pcard .row b{color:var(--text); font-weight:500;}
.pcard .tools{display:flex; flex-wrap:wrap; gap:6px; margin-top:2px;}
.pcard .tools span{font-family:var(--font-mono); font-size:10.5px; padding:3px 8px; border:1px solid var(--border); border-radius:6px; color:var(--text-dim);}
.pcard .view{margin-top:auto; font-size:13.5px; color:var(--cyan); display:flex; align-items:center; gap:6px;}
.demo-badge{
  font-family:var(--font-mono); font-size:10px; letter-spacing:.06em; text-transform:uppercase; color:var(--text-faint);
  border:1px dashed var(--border-strong); padding:3px 8px; border-radius:6px; align-self:flex-start;
}

/* ===== PERFORMANCE LAB ===== */
.lab-tabs{display:flex; gap:8px; margin-bottom:32px; flex-wrap:wrap;}
.lab-tab{
  font-family:var(--font-mono); font-size:12.5px; letter-spacing:.03em; padding:9px 18px; border-radius:999px;
  border:1px solid var(--border-strong); color:var(--text-dim); cursor:pointer; transition:all .25s; background:transparent;
}
.lab-tab.active{background:var(--text); color:var(--bg); border-color:var(--text);}
.kpi-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:12px; margin-bottom:28px;}
.kpi{background:var(--surface); border:1px solid var(--border); border-radius:12px; padding:16px;}
.kpi .k{font-family:var(--font-mono); font-size:10.5px; text-transform:uppercase; letter-spacing:.06em; color:var(--text-faint); margin-bottom:8px;}
.kpi .v{font-family:var(--font-mono); font-size:21px; font-weight:600;}
.lab-chart-wrap{background:var(--surface); border:1px solid var(--border); border-radius:16px; padding:24px 24px 10px;}
.lab-chart-wrap canvas{max-height:280px;}

/* ===== ADTECH LAB FLOWS ===== */
.flow-module{background:var(--surface); border:1px solid var(--border); border-radius:16px; padding:28px; margin-bottom:18px;}
.flow-module h4{font-size:16px; margin-bottom:4px;}
.flow-module .sub{font-size:13px; color:var(--text-dim); margin-bottom:24px;}
.flow-chain{display:flex; align-items:center; gap:0; overflow-x:auto; padding:8px 4px 14px;}
.flow-step{
  flex:0 0 auto; font-family:var(--font-mono); font-size:12.5px; padding:10px 16px; border-radius:9px;
  background:var(--surface-2); border:1px solid var(--border); color:var(--text); white-space:nowrap;
}
.flow-conn{
  flex:0 0 auto; width:52px; height:2px; background:var(--border-strong); position:relative; margin:0 4px;
  overflow:visible;
}
.flow-conn .pulse{
  position:absolute; top:-3px; left:0; width:8px; height:8px; border-radius:50%; background:var(--cyan);
  box-shadow:0 0 8px var(--cyan); animation:flowpulse 2.4s linear infinite;
}
@keyframes flowpulse{
  0%{left:-8px; opacity:0;}
  10%{opacity:1;}
  90%{opacity:1;}
  100%{left:100%; opacity:0;}
}

/* ===== SAAS SECTION ===== */
.saas-section{
  background:radial-gradient(ellipse 90% 70% at 50% 0%, rgba(139,107,255,0.12), transparent 65%), var(--bg-raise);
  border-top:1px solid var(--border); border-bottom:1px solid var(--border);
}
.saas-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(210px,1fr)); gap:14px; margin-top:44px;}
.saas-card{background:rgba(255,255,255,0.02); border:1px solid var(--border); border-radius:14px; padding:20px; transition:border-color .3s, transform .3s;}
.saas-card:hover{border-color:var(--violet); transform:translateY(-4px);}
.saas-card .ico{width:34px; height:34px; border-radius:9px; background:var(--violet-dim); border:1px solid rgba(139,107,255,0.4); margin-bottom:14px; display:flex; align-items:center; justify-content:center; color:var(--violet); font-family:var(--font-mono); font-size:13px;}
.saas-card p{font-size:13.5px;}

/* ===== CASE STUDY ===== */
.case-steps{display:flex; flex-wrap:wrap; gap:10px; margin-bottom:36px;}
.case-step{
  font-family:var(--font-mono); font-size:11.5px; text-transform:uppercase; letter-spacing:.06em;
  padding:8px 14px; border:1px solid var(--border-strong); border-radius:999px; color:var(--text-dim);
  display:flex; align-items:center; gap:8px;
}
.case-step:not(:last-child)::after{content:'→'; color:var(--text-faint); margin-left:6px;}
.case-body{display:grid; grid-template-columns:1fr; gap:20px;}
@media(min-width:900px){.case-body{grid-template-columns:1.2fr 1fr;}}
.case-kpis{display:grid; grid-template-columns:1fr 1fr; gap:12px;}

/* ===== INSIGHTS ===== */
.icard{background:var(--surface); border:1px solid var(--border); border-radius:16px; padding:24px; transition:transform .3s, border-color .3s;}
.icard:hover{transform:translateY(-5px); border-color:var(--border-strong);}
.icard .cat{font-family:var(--font-mono); font-size:10.5px; text-transform:uppercase; letter-spacing:.07em; color:var(--cyan); margin-bottom:12px;}
.icard h3{font-size:17px; margin-bottom:10px; line-height:1.3;}
.icard p{font-size:13.5px; color:var(--text-dim); margin-bottom:16px;}
.icard .read{font-size:13px; color:var(--text); display:flex; align-items:center; gap:6px;}

/* ===== BRAND STATEMENT ===== */
.statement{padding:140px 0; text-align:center;}
.statement h2{font-size:clamp(28px,5vw,46px); max-width:820px; margin:0 auto 26px; line-height:1.25;}
.statement p{max-width:620px; margin:0 auto; color:var(--text-dim); font-size:16px;}

/* ===== CONTACT ===== */
.contact-grid{display:grid; grid-template-columns:1fr; gap:50px;}
@media(min-width:920px){.contact-grid{grid-template-columns:1fr 1fr;}}
.contact-grid h2{font-size:clamp(30px,4.4vw,46px); margin-bottom:18px;}
.contact-grid p.lead{color:var(--text-dim); margin-bottom:30px; max-width:440px;}
.clist{display:flex; flex-direction:column; gap:14px;}
.clist a{
  display:flex; align-items:center; justify-content:space-between; padding:14px 18px; border:1px solid var(--border);
  border-radius:12px; font-size:14px; transition:border-color .25s, background .25s;
}
.clist a:hover{border-color:var(--cyan); background:rgba(69,232,212,0.04);}
.field{margin-bottom:16px;}
.field label{display:block; font-size:12.5px; color:var(--text-dim); margin-bottom:8px; font-family:var(--font-mono);}
.field input, .field textarea{
  width:100%; background:var(--surface); border:1px solid var(--border); border-radius:10px; padding:13px 14px;
  color:var(--text); font-family:var(--font-body); font-size:14px; resize:vertical;
}
.field input:focus, .field textarea:focus{outline:2px solid var(--cyan); outline-offset:1px; border-color:transparent;}
.formnote{font-size:12px; color:var(--text-faint); margin-top:10px;}

/* ===== FOOTER ===== */
footer{border-top:1px solid var(--border); padding:56px 0 40px;}
.foot-grid{display:flex; flex-wrap:wrap; justify-content:space-between; gap:30px; margin-bottom:36px;}
.foot-brand h4{font-size:18px; margin-bottom:6px;}
.foot-brand p{font-size:13px; color:var(--text-dim);}
.foot-links{display:flex; gap:28px; flex-wrap:wrap; font-size:13.5px; color:var(--text-dim);}
.foot-links a:hover{color:var(--text);}
.foot-bottom{font-size:12.5px; color:var(--text-faint); border-top:1px solid var(--border); padding-top:24px;}

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--cyan); outline-offset:2px;
}

::selection{background:var(--cyan-dim); color:var(--text);}

/* Hero portrait */
.hero-right {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}
.nazmul-hero-photo-wrap {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  min-height: 360px;
  border: 1px solid rgba(255,255,255,.10);
  background: #050914;
  box-shadow: 0 30px 90px rgba(0,0,0,.35);
}
.nazmul-hero-photo-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(2,6,18,.35));
  pointer-events: none;
}
.nazmul-hero-photo {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  object-position: center top;
}
@media (max-width: 900px) {
  .hero-right { margin-top: 12px; }
  .nazmul-hero-photo-wrap,
  .nazmul-hero-photo { min-height: 300px; }
}