/* =========================================================
   P SANTHOSH ELECTRONICS — Premium Futuristic Theme
   ========================================================= */

:root{
  --white:#ffffff;
  --blue:#007BFF;
  --blue-deep:#001F54;
  --black:#111111;
  --cyan:#00E5FF;
  --ink:#0b1430;
  --grey:#5b6472;
  --line:rgba(0,31,84,0.10);
  --radius:18px;
  --ease:cubic-bezier(.22,1,.36,1);
  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'JetBrains Mono', monospace;
}

*{box-sizing:border-box;}
html{scroll-behavior:auto;}
body{
  margin:0;
  background:var(--white);
  color:var(--ink);
  font-family:var(--font-body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 28px;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important; transition-duration:.001ms !important;}
}

/* ---------- fixed full-page assembly animation (background) ---------- */
.bg-frame-canvas{
  position:fixed; inset:0; width:100vw; height:100vh; z-index:-2;
  object-fit:cover; pointer-events:none;
  filter:saturate(1.15) contrast(1.05) brightness(0.95);
}
.bg-frame-tint{
  position:fixed; inset:0; z-index:-1; pointer-events:none;
  background:
    radial-gradient(circle at 50% 30%, rgba(0,20,50,0.15), rgba(2,6,16,0.55) 75%);
}

/* ---------- background circuit traces ---------- */
.bg-traces{
  position:fixed; inset:0; width:100%; height:100%;
  z-index:-3; pointer-events:none; opacity:0.05;
}
.bg-traces path{fill:none; stroke:var(--blue-deep); stroke-width:1.4;}
.bg-traces circle{fill:var(--cyan);}

/* ============ NAVBAR ============ */
.navbar{
  position:fixed; top:0; left:0; right:0; z-index:100;
  padding:16px 0;
  background:rgba(8,14,30,0.0);
  transition:background .4s var(--ease), backdrop-filter .4s var(--ease), padding .3s var(--ease);
}
.navbar.scrolled{
  background:rgba(6,12,28,0.55);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,0.06);
  padding:10px 0;
}
.nav-inner{
  max-width:1240px; margin:0 auto; padding:0 28px;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.logo{display:flex; align-items:center; gap:10px;}
.logo-mark{
  width:38px; height:38px; border-radius:10px;
  background:linear-gradient(145deg, var(--blue), var(--cyan));
  color:#fff; display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-weight:700; font-size:14px;
  box-shadow:0 0 18px rgba(0,229,255,.45);
}
.logo-mark.small{width:30px;height:30px;font-size:11px;}
.logo-text{
  display:flex; flex-direction:column; line-height:1.05;
  font-family:var(--font-display); font-weight:600; font-size:15px; color:#fff;
  letter-spacing:.02em;
}
.logo-text small{font-family:var(--font-mono); font-size:9px; letter-spacing:.18em; color:var(--cyan); font-weight:500;}
.nav-links{display:flex; gap:30px;}
.nav-links a{
  font-size:14px; color:rgba(255,255,255,.78); font-weight:500;
  position:relative; padding:4px 0; transition:color .25s;
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; width:0; height:1px;
  background:var(--cyan); transition:width .3s var(--ease);
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{width:100%;}
.nav-toggle{display:none; flex-direction:column; gap:5px; width:26px;}
.nav-toggle span{height:2px; background:#fff; border-radius:2px;}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 26px; border-radius:999px; font-weight:600; font-size:14px;
  font-family:var(--font-body); transition:transform .35s var(--ease), box-shadow .35s var(--ease), background .3s, color .3s;
  white-space:nowrap;
}
.btn-primary{background:var(--blue); color:#fff; box-shadow:0 8px 24px rgba(0,123,255,.35);}
.btn-primary:hover{transform:translateY(-3px); box-shadow:0 14px 32px rgba(0,123,255,.5);}
.btn-outline{background:transparent; color:#fff; border:1px solid rgba(255,255,255,.35);}
.btn-outline:hover{border-color:var(--cyan); color:var(--cyan); transform:translateY(-3px);}
.btn-glow{background:linear-gradient(120deg,var(--blue),var(--cyan)); color:#fff; box-shadow:0 0 22px rgba(0,229,255,.4);}
.btn-glow:hover{transform:translateY(-3px); box-shadow:0 0 32px rgba(0,229,255,.65);}
.btn.full{width:100%;}
.nav-cta{padding:10px 22px; font-size:13px;}

/* ============ HERO ============ */
.hero{
  position:relative; z-index:1; min-height:100vh; display:flex; flex-direction:column;
  align-items:center; justify-content:center; text-align:center; overflow:hidden;
  background:radial-gradient(circle at 50% 0%, rgba(10,28,70,.35) 0%, rgba(0,31,84,.55) 45%, rgba(5,10,24,.75) 100%);
  padding:140px 24px 80px;
}
#three-canvas{position:absolute; inset:0; width:100%; height:100%; z-index:1;}
.hero-content{position:relative; z-index:3; max-width:760px;}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:12px; letter-spacing:.18em;
  color:var(--cyan); text-transform:uppercase; margin:0 0 22px;
}
.eyebrow .dot{width:7px; height:7px; border-radius:50%; background:var(--cyan); box-shadow:0 0 10px var(--cyan); animation:pulse 1.8s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.3;}}
.hero-title{
  font-family:var(--font-display); font-weight:700; color:#fff;
  font-size:clamp(2.6rem, 6.4vw, 5rem); line-height:1.04; letter-spacing:-.01em; margin:0 0 22px;
}
.gradient-text{
  background:linear-gradient(100deg, var(--cyan), var(--blue) 60%, #fff);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero-sub{color:rgba(255,255,255,.72); font-size:17px; line-height:1.6; max-width:560px; margin:0 auto 34px;}
.hero-actions{display:flex; gap:16px; justify-content:center; flex-wrap:wrap;}

.scroll-cue{
  position:absolute; bottom:26px; left:50%; transform:translateX(-50%); z-index:3;
  display:flex; flex-direction:column; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:10px; letter-spacing:.18em; color:rgba(255,255,255,.5);
}
.scroll-cue span{width:1px; height:30px; background:linear-gradient(to bottom, var(--cyan), transparent); animation:scrolldown 1.8s infinite;}
@keyframes scrolldown{0%{opacity:0; transform:translateY(-6px);}50%{opacity:1;}100%{opacity:0; transform:translateY(14px);}}

/* ============ MARQUEE ============ */
.marquee{
  position:relative; z-index:1;
  background:rgba(17,17,17,0.6); backdrop-filter:blur(8px);
  overflow:hidden; padding:16px 0;
  border-top:1px solid rgba(255,255,255,.06); border-bottom:1px solid rgba(255,255,255,.06);
}
.marquee-track{display:flex; gap:48px; white-space:nowrap; width:max-content; animation:marquee 32s linear infinite;}
.marquee-track span{
  font-family:var(--font-mono); font-size:13px; letter-spacing:.14em; color:rgba(255,255,255,.45);
}
.marquee-track span:nth-child(odd){color:var(--cyan);}
@keyframes marquee{from{transform:translateX(0);} to{transform:translateX(-50%);}}

/* ============ SECTIONS ============ */
.section{padding:120px 0; position:relative; z-index:1; background:rgba(255,255,255,0.55); backdrop-filter:blur(1px) saturate(120%);}
.section-dark{background:linear-gradient(180deg,rgba(7,13,32,.55), rgba(0,31,84,.5) 55%, rgba(7,13,32,.55)); backdrop-filter:blur(14px) saturate(120%); color:#fff;}
.section-eyebrow{
  font-family:var(--font-mono); font-size:12px; letter-spacing:.2em; color:var(--blue);
  text-transform:uppercase; margin:0 0 14px;
}
.section-eyebrow.light{color:var(--cyan);}
.section-title{
  font-family:var(--font-display); font-size:clamp(2rem,4vw,3rem); font-weight:700;
  letter-spacing:-.01em; margin:0 0 16px;
}
.section-title.light{color:#fff;}
.section-desc{color:var(--grey); font-size:16px; max-width:560px; margin:0 0 48px; line-height:1.6;}
.section-desc.light{color:rgba(255,255,255,.65);}

/* ---------- filter chips ---------- */
.filter-row{display:flex; gap:10px; margin-bottom:44px; flex-wrap:wrap;}
.chip{
  padding:9px 20px; border-radius:999px; border:1px solid var(--line); font-size:13px; font-weight:600;
  color:var(--grey); transition:all .25s var(--ease);
}
.chip.active, .chip:hover{background:var(--blue-deep); color:#fff; border-color:var(--blue-deep);}

/* ---------- project cards ---------- */
.project-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(290px,1fr)); gap:26px;}
.project-card{
  position:relative; border-radius:var(--radius); overflow:hidden; background:#fff;
  border:1px solid var(--line); transition:transform .45s var(--ease), box-shadow .45s var(--ease), border-color .45s;
}
.project-card:hover{
  transform:translateY(-10px);
  box-shadow:0 26px 50px -16px rgba(0,31,84,.28), 0 0 0 1px rgba(0,229,255,.4);
  border-color:transparent;
}
.project-card .pc-media{position:relative; height:190px; overflow:hidden;}
.project-card .pc-media img{width:100%; height:100%; object-fit:cover; transition:transform .6s var(--ease);}
.project-card:hover .pc-media img{transform:scale(1.08);}
.pc-tag{
  position:absolute; top:12px; left:12px; font-family:var(--font-mono); font-size:10px;
  letter-spacing:.1em; text-transform:uppercase; padding:5px 10px; border-radius:999px;
  background:rgba(0,31,84,.85); color:var(--cyan); backdrop-filter:blur(6px);
}
.pc-body{padding:20px 22px 22px;}
.pc-body h3{font-family:var(--font-display); font-size:18px; margin:0 0 6px;}
.pc-desc{font-size:13.5px; color:var(--grey); line-height:1.5; margin:0 0 14px; min-height:38px;}
.pc-price{font-family:var(--font-mono); font-size:18px; font-weight:600; color:var(--blue); margin:0 0 16px;}
.pc-actions{display:flex; gap:10px;}
.pc-actions .btn{flex:1; padding:10px 14px; font-size:13px;}
.pc-actions .btn-outline{color:var(--blue-deep); border:1px solid var(--line);}
.pc-actions .btn-outline:hover{border-color:var(--blue); color:var(--blue);}

/* ---------- services ---------- */
.services-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:22px;}
.service-card{
  padding:30px 26px; border-radius:var(--radius); background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08); transition:all .4s var(--ease); position:relative; overflow:hidden;
}
.service-card::before{
  content:""; position:absolute; inset:0; opacity:0; background:radial-gradient(circle at 30% 20%, rgba(0,229,255,.18), transparent 60%);
  transition:opacity .4s;
}
.service-card:hover::before{opacity:1;}
.service-card:hover{border-color:rgba(0,229,255,.4); transform:translateY(-6px);}
.service-num{font-family:var(--font-mono); font-size:12px; color:var(--cyan); opacity:.7;}
.service-card h3{font-family:var(--font-display); font-size:18px; margin:14px 0 8px; color:#fff;}
.service-card p{font-size:13.5px; color:rgba(255,255,255,.6); line-height:1.55; margin:0;}

/* ---------- masonry gallery ---------- */
.masonry{display:grid; grid-template-columns:repeat(4,1fr); grid-auto-rows:120px; gap:16px;}
.masonry-item{
  position:relative; overflow:hidden; border-radius:14px; cursor:pointer;
}
.masonry-item img{width:100%; height:100%; object-fit:cover; transition:transform .6s var(--ease), filter .4s;}
.masonry-item:hover img{transform:scale(1.1);}
.masonry-item::after{
  content:"\\2316"; position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:22px; background:rgba(0,20,50,0); opacity:0; transition:all .35s;
}
.masonry-item:hover::after{background:rgba(0,20,50,.35); opacity:1;}
.masonry-item:nth-child(6n+1){grid-row:span 2;}
.masonry-item:nth-child(5n+3){grid-column:span 2;}

/* ---------- lightbox ---------- */
.lightbox{
  position:fixed; inset:0; z-index:300; background:rgba(4,8,20,.92); display:none;
  align-items:center; justify-content:center; padding:40px;
}
.lightbox.open{display:flex;}
.lightbox img{max-width:90vw; max-height:85vh; border-radius:12px; box-shadow:0 30px 80px rgba(0,0,0,.5);}
.lightbox-close{
  position:absolute; top:24px; right:30px; color:#fff; font-size:22px;
  width:44px; height:44px; border-radius:50%; background:rgba(255,255,255,.1);
}
.lightbox-close:hover{background:rgba(255,255,255,.2);}

/* ---------- about ---------- */
.about-grid{display:grid; grid-template-columns:300px 1fr; gap:60px; align-items:center;}
.photo-frame{position:relative; border-radius:24px; overflow:hidden;}
.avatar-svg{width:100%; border-radius:24px; display:block;}
.photo-glow{position:absolute; inset:-20px; background:radial-gradient(circle,rgba(0,229,255,.25),transparent 70%); z-index:-1; filter:blur(20px);}
.about-role{font-family:var(--font-mono); font-size:13px; letter-spacing:.04em; color:var(--cyan); margin:0 0 20px; line-height:1.6;}
.about-text{font-size:15.5px; line-height:1.75; color:rgba(255,255,255,.7); margin:0 0 30px;}
.about-text.light{color:rgba(255,255,255,.7);}
.skills-row{display:flex; flex-wrap:wrap; gap:10px;}
.skill-pill{
  font-family:var(--font-mono); font-size:12px; padding:8px 16px; border-radius:999px;
  background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.12); color:#fff;
}

/* ---------- contact ---------- */
.contact-grid{display:grid; grid-template-columns:1fr 1.3fr; gap:40px;}
.contact-cards{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
.contact-card{
  padding:24px 20px; border-radius:16px; border:1px solid var(--line); display:flex; flex-direction:column; gap:6px;
  transition:all .35s var(--ease);
}
.contact-card:hover{border-color:var(--blue); transform:translateY(-4px); box-shadow:0 16px 32px -10px rgba(0,123,255,.25);}
.cc-icon{font-size:22px;}
.cc-label{font-size:12px; color:var(--grey); font-family:var(--font-mono); letter-spacing:.1em; text-transform:uppercase;}
.cc-value{font-weight:600; font-size:14.5px; color:var(--blue-deep);}
.contact-form{
  display:flex; flex-direction:column; gap:14px; padding:30px; border-radius:20px;
  background:#fff; border:1px solid var(--line); box-shadow:0 20px 50px -24px rgba(0,31,84,.2);
}
.field-row{display:flex; gap:14px;}
.contact-form input, .contact-form textarea{
  width:100%; padding:13px 16px; border-radius:10px; border:1px solid var(--line);
  font-family:var(--font-body); font-size:14px; color:var(--ink); background:#fafbfe;
  transition:border-color .25s;
}
.contact-form input:focus, .contact-form textarea:focus{outline:none; border-color:var(--blue);}
.form-note{font-size:13px; color:var(--blue); margin:0; min-height:18px;}

/* ---------- location / map ---------- */
.map-wrap{position:relative; border-radius:20px; overflow:hidden; box-shadow:0 30px 60px -20px rgba(0,0,0,.5);}
.map-wrap iframe{width:100%; height:420px; border:0; display:block; filter:saturate(.85);}
.map-cta{position:absolute; bottom:24px; left:24px;}

/* ---------- footer ---------- */
.footer{position:relative; z-index:1; background:rgba(17,17,17,0.65); backdrop-filter:blur(14px); color:rgba(255,255,255,.7); padding:70px 0 0;}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:40px; padding-bottom:50px; border-bottom:1px solid rgba(255,255,255,.08);}
.footer-brand{display:flex; flex-direction:column; gap:10px;}
.footer-brand p{margin:0; font-family:var(--font-display); font-weight:600; color:#fff;}
.footer-tag{font-size:12.5px; color:rgba(255,255,255,.45) !important; font-weight:400 !important; font-family:var(--font-body);}
.footer-links h4, .footer-social h4{color:#fff; font-size:13px; letter-spacing:.1em; text-transform:uppercase; margin:0 0 16px; font-family:var(--font-mono);}
.footer-links{display:flex; flex-direction:column; gap:10px;}
.footer-links a{font-size:14px; color:rgba(255,255,255,.6); transition:color .25s;}
.footer-links a:hover{color:var(--cyan);}
.social-row{display:flex; gap:10px;}
.social-row a{
  width:38px; height:38px; border-radius:10px; background:rgba(255,255,255,.06);
  display:flex; align-items:center; justify-content:center; font-size:13px; font-weight:600;
  transition:all .3s;
}
.social-row a:hover{background:var(--blue); color:#fff;}
.footer-bottom{display:flex; align-items:center; justify-content:space-between; padding:24px 28px; max-width:1240px; margin:0 auto; font-size:13px;}
.to-top{color:rgba(255,255,255,.6); font-size:13px; transition:color .25s;}
.to-top:hover{color:var(--cyan);}

/* ============ RESPONSIVE ============ */
@media (max-width:980px){
  .about-grid{grid-template-columns:1fr; text-align:center;}
  .photo-frame{max-width:240px; margin:0 auto;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr; text-align:center;}
  .social-row{justify-content:center;}
}
@media (max-width:760px){
  .nav-links, .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-links.open{
    display:flex; position:absolute; top:64px; left:0; right:0; background:rgba(6,12,28,.96);
    flex-direction:column; padding:20px 28px; gap:18px; backdrop-filter:blur(16px);
  }
  .masonry{grid-template-columns:repeat(2,1fr);}
  .field-row{flex-direction:column;}
  .contact-cards{grid-template-columns:1fr;}
}