/* =========================================================
   CollabSight — Premium Dark Theme
   ========================================================= */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#06080c;
  --bg-2:#0b0f17;
  --bg-3:#0f1420;
  --surface:rgba(255,255,255,.04);
  --surface-2:rgba(255,255,255,.06);
  --border:rgba(255,255,255,.08);
  --text:#e8edf5;
  --muted:#8a93a6;
  --accent:#00C2FF;
  --accent-2:#7C5CFF;
  --accent-3:#22e0a1;
  --grad:linear-gradient(135deg,#00C2FF 0%,#7C5CFF 100%);
  --grad-soft:linear-gradient(135deg,rgba(0,194,255,.18),rgba(124,92,255,.18));
  --glow:0 0 40px rgba(0,194,255,.35);
  --radius:16px;
  --radius-lg:24px;
  --maxw:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:120px 0;position:relative}
.dark-section{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.section-head{text-align:center;max-width:760px;margin:0 auto 64px}
.section-head h2{font-size:clamp(2rem,4vw,3rem);font-weight:700;letter-spacing:-.02em;line-height:1.15;margin:14px 0}
.section-head p{color:var(--muted)}
.eyebrow{
  display:inline-block;font-size:.75rem;letter-spacing:.25em;text-transform:uppercase;
  color:var(--accent);padding:6px 14px;border:1px solid rgba(0,194,255,.3);
  border-radius:999px;background:rgba(0,194,255,.06);
}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.accent{color:var(--accent)}
.glass{
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-radius:var(--radius);
}

/* ============ NAVBAR ============ */
.navbar{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:all .4s var(--ease);
  padding:18px 0;
}
.navbar.scrolled{
  background:rgba(6,8,12,.7);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border);
  padding:10px 0;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:2.15rem}
.brand-mark{
  width:28px;height:28px;border-radius:8px;background:var(--grad);
  box-shadow:var(--glow);position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;border-radius:4px;background:var(--bg);
}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{position:relative;font-size:.95rem;color:#cbd2e0;transition:color .3s}
.nav-links a:not(.nav-cta)::after{
  content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;
  background:var(--grad);transition:width .35s var(--ease);border-radius:2px;
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{width:100%}
.nav-cta{
  padding:10px 18px;border-radius:999px;background:var(--grad);color:#fff !important;
  box-shadow:0 6px 24px rgba(0,194,255,.25);transition:transform .3s, box-shadow .3s;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(0,194,255,.45)}
.hamburger{display:none;flex-direction:column;gap:5px;padding:8px}
.hamburger span{display:block;width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.logo {
  height: 40px;
  width: 50px
}
/* ============ HERO ============ */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  overflow:hidden;padding:140px 0 80px;
}
.hero-bg{position:absolute;inset:-10% 0 0 0;z-index:0;will-change:transform}
.hero-bg img{width:100%;height:110%;object-fit:cover;filter:grayscale(20%) brightness(.55)}
.hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:
    radial-gradient(60% 50% at 80% 20%,rgba(0,194,255,.18),transparent 70%),
    radial-gradient(50% 50% at 10% 80%,rgba(124,92,255,.18),transparent 70%),
    linear-gradient(180deg,rgba(6,8,12,.55) 0%,rgba(6,8,12,.85) 60%,var(--bg) 100%);
}
.hero-grid{
  position:absolute;inset:0;z-index:1;opacity:.25;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
}
.hero-content{position:relative;z-index:2;max-width:1000px}
.hero-title{
  font-size:clamp(2.4rem,6vw,4rem);
  font-weight:600;letter-spacing:-.03em;line-height:1.05;margin:18px 0 22px;
}
.hero-sub{font-size:clamp(1rem,1.4vw,1.2rem);color:#b6bdcc;max-width:680px;margin-bottom:36px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:64px}
.btn{
  position:relative;overflow:hidden;display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:999px;font-weight:600;font-size:.95rem;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease);
}
.btn span{transition:transform .3s var(--ease)}
.btn:hover span{transform:translateX(4px)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 30px rgba(0,194,255,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(0,194,255,.5)}
.btn-ghost{border:1px solid var(--border);color:#fff;background:rgba(255,255,255,.04)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.ripple .rip{
  position:absolute;border-radius:50%;background:rgba(255,255,255,.45);
  transform:translate(-50%,-50%) scale(0);animation:ripple .7s var(--ease) forwards;pointer-events:none;
}
@keyframes ripple{to{transform:translate(-50%,-50%) scale(12);opacity:0}}

.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:24px;border:1px solid var(--border);border-radius:var(--radius-lg);
  background:rgba(255,255,255,.03);backdrop-filter:blur(10px);
}
.hero-stats div{text-align:center}
.hero-stats strong{display:block;font-size:clamp(1.6rem,2.5vw,2.2rem);background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800}
.hero-stats span{font-size:.8rem;color:var(--muted);letter-spacing:.05em;text-transform:uppercase}
.scroll-indicator{
  position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:3;
  width:24px;height:40px;border:2px solid rgba(255,255,255,.3);border-radius:14px;
}
.scroll-indicator span{
  display:block;width:3px;height:8px;margin:6px auto;background:var(--accent);
  border-radius:2px;animation:scrollDot 1.6s infinite;
}
@keyframes scrollDot{0%{transform:translateY(0);opacity:1}100%{transform:translateY(14px);opacity:0}}

/* ============ ABOUT ============ */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about-media{position:relative;border-radius:var(--radius-lg);overflow:hidden}
.about-media img{width:100%;height:540px;object-fit:cover;border-radius:var(--radius-lg);transition:transform .8s var(--ease)}
.about-media:hover img{transform:scale(1.04)}
.floating-card{
  position:absolute;bottom:24px;left:24px;padding:14px 18px;display:flex;align-items:center;gap:12px;
  animation:float 4s ease-in-out infinite;
}
.floating-card .dot{width:10px;height:10px;border-radius:50%;background:var(--accent-3);box-shadow:0 0 12px var(--accent-3)}
.floating-card strong{display:block;font-size:.95rem}
.floating-card span{font-size:.78rem;color:var(--muted)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.about-text h2{font-size:clamp(2rem,3.4vw,2.8rem);font-weight:700;letter-spacing:-.02em;line-height:1.15;margin:14px 0 18px}
.about-text p{color:var(--muted);margin-bottom:24px}
.check-list{list-style:none}
.check-list li{padding:10px 0 10px 30px;position:relative;color:#cbd2e0;border-bottom:1px solid var(--border)}
.check-list li::before{
  content:"";position:absolute;left:0;top:14px;width:18px;height:18px;border-radius:50%;
  background:var(--grad);box-shadow:0 0 12px rgba(0,194,255,.5);
}
.check-list li::after{content:"✓";position:absolute;left:4px;top:9px;font-size:.8rem;color:#fff;font-weight:700}

/* ============ SERVICES ============ */
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.service-card{
  padding:28px;position:relative;overflow:hidden;
  transition:transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s;
}
.service-card::before{
  content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;
  background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .4s;
}
.service-card:hover{transform:translateY(-8px);box-shadow:0 20px 50px rgba(0,194,255,.18)}
.service-card:hover::before{opacity:1}
.svc-icon{
  width:54px;height:54px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad-soft);font-size:1.6rem;margin-bottom:18px;
  border:1px solid var(--border);
}
.service-card h3{font-size:1.1rem;margin-bottom:8px;font-weight:600}
.service-card p{color:var(--muted);font-size:.92rem;margin-bottom:14px}
.tag{font-size:.75rem;color:var(--accent);letter-spacing:.05em}
.brand-strip{
  margin-top:60px;display:flex;flex-wrap:wrap;justify-content:center;gap:36px;
  padding:24px;border-top:1px solid var(--border);border-bottom:1px solid var(--border);
}
.brand-strip span{color:var(--muted);font-weight:600;letter-spacing:.08em;font-size:.95rem;transition:color .3s}
.brand-strip span:hover{color:#fff}

/* ============ INDUSTRIES ============ */
.industry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.industry-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;height:340px;
  display:block;
}
.industry-card img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease);filter:brightness(.7)}
.industry-card:hover img{transform:scale(1.08);filter:brightness(.9)}
.ind-overlay{
  position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;
  padding:26px;background:linear-gradient(180deg,transparent 40%,rgba(6,8,12,.92) 100%);
  transition:background .4s;
}
.industry-card:hover .ind-overlay{background:linear-gradient(180deg,rgba(0,194,255,.15) 0%,rgba(6,8,12,.95) 100%)}
.ind-overlay h3{font-size:1.4rem;margin-bottom:6px}
.ind-overlay p{color:var(--muted);font-size:.9rem}

/* ============ PROJECTS ============ */
.filter-bar{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:36px}
.filter-btn{
  padding:10px 20px;border-radius:999px;border:1px solid var(--border);
  color:#cbd2e0;font-size:.85rem;transition:all .3s;
}
.filter-btn:hover{border-color:var(--accent);color:var(--accent)}
.filter-btn.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 6px 20px rgba(0,194,255,.3)}
.portfolio-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.portfolio-item{
  position:relative;border-radius:var(--radius);overflow:hidden;height:260px;
  transition:transform .5s var(--ease);
}
.portfolio-item img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.portfolio-item:hover img{transform:scale(1.1)}
.port-overlay{
  position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;
  padding:18px;background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,.9));
  opacity:0;transition:opacity .4s;
}
.portfolio-item:hover .port-overlay{opacity:1}
.port-overlay h4{margin-bottom:4px}
.port-overlay span{color:var(--accent);font-size:.8rem}
.portfolio-item.hide{display:none}

/* ============ WHY ============ */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.why-card{
  padding:32px;border:1px solid var(--border);border-radius:var(--radius);
  background:var(--surface);transition:all .4s var(--ease);position:relative;overflow:hidden;
}
.why-card::after{
  content:"";position:absolute;inset:0;background:radial-gradient(400px circle at var(--mx,50%) var(--my,50%),rgba(0,194,255,.15),transparent 40%);
  opacity:0;transition:opacity .3s;pointer-events:none;
}
.why-card:hover{transform:translateY(-6px);border-color:rgba(0,194,255,.4);box-shadow:0 16px 40px rgba(0,194,255,.15)}
.why-card:hover::after{opacity:1}
.why-icon{width:54px;height:54px;border-radius:14px;background:var(--grad-soft);display:grid;place-items:center;font-size:1.5rem;margin-bottom:16px}
.why-card h3{margin-bottom:8px;font-size:1.1rem}
.why-card p{color:var(--muted);font-size:.92rem}

/* ============ STEPPER ============ */
.stepper{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.stepper::before{
  content:"";position:absolute;top:30px;left:5%;right:5%;height:2px;
  background:linear-gradient(90deg,transparent,var(--accent),var(--accent-2),transparent);
  opacity:.4;
}
.step{position:relative;text-align:center;padding:0 12px}
.step-num{
  display:inline-grid;place-items:center;width:60px;height:60px;border-radius:50%;
  background:var(--bg-3);border:2px solid var(--accent);color:var(--accent);font-weight:700;
  margin-bottom:16px;position:relative;z-index:1;box-shadow:var(--glow);
}
.step h4{margin-bottom:6px}
.step p{color:var(--muted);font-size:.9rem}

/* ============ TESTIMONIALS ============ */
.slider{max-width:840px;margin:0 auto;overflow:hidden;position:relative}
.slides{display:flex;transition:transform .6s var(--ease)}
.slide{
  min-width:100%;padding:40px;text-align:center;
}
.slide p{font-size:1.25rem;line-height:1.6;margin-bottom:24px;color:#dfe4ee;font-style:italic}
.slide p::before,.slide p::after{content:"\"";color:var(--accent);font-size:1.5rem}
.who strong{display:block}
.who span{color:var(--muted);font-size:.85rem}
.slider-dots{display:flex;justify-content:center;gap:8px;margin-top:20px}
.slider-dots button{
  width:10px;height:10px;border-radius:50%;background:var(--border);transition:all .3s;
}
.slider-dots button.active{background:var(--grad);width:28px;border-radius:6px}

/* ============ CONTACT ============ */
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:start}
.contact-text h2{font-size:clamp(2rem,3.6vw,2.8rem);font-weight:700;letter-spacing:-.02em;line-height:1.2;margin:14px 0 20px}
.closing{color:#cbd2e0;font-size:1.05rem;border-left:3px solid var(--accent);padding:12px 18px;background:rgba(0,194,255,.05);border-radius:0 12px 12px 0;margin-bottom:24px}
.contact-info{list-style:none;margin-bottom:24px}
.contact-info li{padding:10px 0;color:var(--muted);border-bottom:1px solid var(--border)}
.map{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);height:240px}
.map iframe{width:100%;height:100%;border:0;filter:invert(.9) hue-rotate(180deg)}
.contact-form{padding:36px}
.contact-form h3{font-size:1.4rem;margin-bottom:22px}
.field{margin-bottom:14px}
.field input,.field textarea{
  width:100%;padding:14px 16px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--border);color:#fff;font:inherit;
  transition:border-color .3s, background .3s;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);background:rgba(0,194,255,.05)}
.field textarea{resize:vertical}
.contact-form .btn{width:100%;justify-content:center;margin-top:6px}
.form-msg{margin-top:12px;font-size:.9rem;min-height:1.2em}
.form-msg.error{color:#ff7a90}
.form-msg.ok{color:var(--accent-3)}

/* ============ FOOTER ============ */
.footer{padding:80px 0 30px;background:#04060a;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer h5{margin-bottom:14px;font-size:.95rem;color:#fff}
.footer a{display:block;color:var(--muted);font-size:.9rem;padding:4px 0;transition:color .3s}
.footer a:hover{color:var(--accent)}
.muted{color:var(--muted);font-size:.9rem;margin-top:10px}
.socials{display:flex;gap:10px}
.socials a{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--border);background:var(--surface);color:#fff;font-weight:700;
  transition:all .3s;
}
.socials a:hover{background:var(--grad);border-color:transparent;transform:translateY(-3px)}
.foot-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  padding-top:24px;border-top:1px solid var(--border);color:var(--muted);font-size:.85rem;
}

/* ============ WHATSAPP FLOAT ============ */
.wa-float{
  position:fixed;right:24px;bottom:24px;z-index:99;
  width:58px;height:58px;border-radius:50%;display:grid;place-items:center;
  background:#25D366;box-shadow:0 10px 30px rgba(37,211,102,.45);
  transition:transform .3s;
}
.wa-float:hover{transform:scale(1.1) rotate(-5deg)}
.wa-float::before{
  content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid #25D366;
  animation:waPulse 2s infinite;
}
@keyframes waPulse{0%{transform:scale(.9);opacity:1}100%{transform:scale(1.4);opacity:0}}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal:nth-child(2){transition-delay:.08s}
.reveal:nth-child(3){transition-delay:.16s}
.reveal:nth-child(4){transition-delay:.24s}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .portfolio-grid{grid-template-columns:repeat(3,1fr)}
  .industry-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  .section{padding:90px 0}
  .nav-links{
    position:fixed;top:0;right:-100%;width:80%;max-width:340px;height:100vh;
    background:rgba(6,8,12,.97);backdrop-filter:blur(20px);
    flex-direction:column;justify-content:center;align-items:flex-start;padding:40px;gap:24px;
    transition:right .4s var(--ease);border-left:1px solid var(--border);
  }
  .nav-links.open{right:0}
  .nav-links a{font-size:1.1rem}
  .hamburger{display:flex}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .about-grid,.contact-grid{grid-template-columns:1fr;gap:40px}
  .about-media img{height:380px}
  .stepper{grid-template-columns:1fr 1fr}
  .stepper::before{display:none}
  .portfolio-grid{grid-template-columns:repeat(2,1fr)}
  .industry-grid{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .services-grid{grid-template-columns:1fr}
  .portfolio-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr 1fr;padding:18px}
  .stepper{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .contact-form{padding:24px}
}