:root{
  --navy-950:#0a1120;
  --navy-900:#0B1220;
  --navy-850:#111a2e;
  --navy-800:#131C2E;
  --navy-700:#1c2b45;
  --teal:#4FE3C1;
  --teal-dark:#38B6A6;
  --gold:#f2b705;
  --violet:#a78bfa;
  --ink:#EDEEF0;
  --ink-soft:#8b96a8;
  --border:rgba(255,255,255,.08);
  --radius:16px;
  --shadow-lg:0 24px 64px rgba(0,0,0,.45);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Space Grotesk',system-ui,-apple-system,sans-serif;
  color:var(--ink);
  background:var(--navy-900);
  line-height:1.6;
  overflow-x:hidden;
  position:relative;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;position:relative;z-index:2}

h1,h2,h3{font-weight:700;letter-spacing:-0.02em;color:var(--ink)}
h1{font-size:clamp(2.3rem,4.6vw,3.8rem);line-height:1.12}
h2{font-size:clamp(1.8rem,3.2vw,2.6rem);line-height:1.2}
h3{font-size:1.2rem}

/* ---------- ANIMATED BACKGROUND ---------- */
#netCanvas{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.bg-grid{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(79,227,193,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(79,227,193,.07) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 20%,#000 40%,transparent 100%);
  animation:gridDrift 30s linear infinite;
}
@keyframes gridDrift{from{background-position:0 0,0 0}to{background-position:44px 88px,88px 44px}}

.bg-glow{position:fixed;border-radius:50%;filter:blur(90px);opacity:.35;z-index:0;pointer-events:none}
.glow-1{width:520px;height:520px;background:var(--teal);top:-160px;left:-140px;animation:driftA 16s ease-in-out infinite}
.glow-2{width:460px;height:460px;background:var(--violet);top:20%;right:-160px;animation:driftB 20s ease-in-out infinite}
.glow-3{width:400px;height:400px;background:var(--gold);bottom:-140px;left:30%;animation:driftC 22s ease-in-out infinite;opacity:.18}
@keyframes driftA{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(60px,80px) scale(1.15)}}
@keyframes driftB{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-70px,50px) scale(1.1)}}
@keyframes driftC{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(40px,-60px) scale(1.2)}}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:.95rem;
  padding:12px 24px;border-radius:10px;
  border:2px solid transparent;
  cursor:pointer;transition:all .25s ease;
  white-space:nowrap;font-family:inherit;
}
.btn-primary{background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:#04140f;box-shadow:0 8px 24px rgba(79,227,193,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(79,227,193,.45)}
.btn-outline{border-color:rgba(255,255,255,.25);color:var(--ink)}
.btn-outline:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
.btn-lg{padding:15px 30px;font-size:1rem}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(10,17,32,.75);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:88px;gap:24px}
.brand-long img{height:66px;width:auto;display:block}
.main-nav{display:flex;gap:32px}
.main-nav a{color:var(--ink-soft);font-weight:500;font-size:.92rem;position:relative;padding:6px 0;transition:color .2s}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--teal);transition:width .25s ease}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{width:100%}
.mobile-cta{display:none}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:32px;height:32px;background:none;border:none;cursor:pointer;flex-shrink:0}
.nav-toggle span{display:block;height:2px;background:#fff;border-radius:2px}

/* ---------- EYEBROW / GLOW TEXT ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8rem;font-weight:600;letter-spacing:.08em;
  color:var(--teal);background:rgba(79,227,193,.1);
  padding:7px 16px;border-radius:999px;margin-bottom:18px;
  font-family:'JetBrains Mono',monospace;
}
.eyebrow-light{background:rgba(79,227,193,.1)}
.pulse-dot{width:7px;height:7px;border-radius:50%;background:var(--teal);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(79,227,193,.6)}50%{opacity:.6;box-shadow:0 0 0 6px rgba(79,227,193,0)}}
.glow-text{
  background:linear-gradient(90deg,var(--teal),#7dd3fc,var(--teal));
  background-size:200% auto;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:shine 4s linear infinite;
}
@keyframes shine{to{background-position:200% center}}

/* ---------- HERO ---------- */
.hero{padding:150px 0 100px;position:relative}
.hero-inner{max-width:760px}
.hero-sub{color:var(--ink-soft);font-size:1.1rem;max-width:600px;margin:22px 0 34px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:44px}

.tech-badges{display:flex;gap:14px;flex-wrap:wrap}
.tech-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.04);border:1px solid var(--border);
  padding:9px 16px;border-radius:999px;font-size:.85rem;color:var(--ink-soft);
  backdrop-filter:blur(6px);
}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block}
.dot-teal{background:var(--teal)}
.dot-gold{background:var(--gold)}
.dot-violet{background:var(--violet)}
.float-a{animation:floatChip 5s ease-in-out infinite}
.float-b{animation:floatChip 6s ease-in-out infinite .5s}
.float-c{animation:floatChip 5.5s ease-in-out infinite 1s}
@keyframes floatChip{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

/* ---------- SECTION HEAD ---------- */
.section-head{text-align:center;max-width:620px;margin:0 auto 52px}
.section-head p{color:var(--ink-soft);margin-top:14px;font-size:1.02rem}

/* ---------- SERVICES ---------- */
.services{padding:110px 0}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.service-card{
  background:rgba(255,255,255,.03);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px;transition:transform .3s ease,border-color .3s ease,background .3s ease;
}
.service-card:hover{transform:translateY(-6px);border-color:rgba(79,227,193,.35);background:rgba(255,255,255,.05)}
.service-card h3{margin-bottom:10px;font-size:1.05rem}
.service-card p{color:var(--ink-soft);font-size:.92rem}
.service-icon{
  width:50px;height:50px;border-radius:12px;margin-bottom:20px;
  display:flex;align-items:center;justify-content:center;
}
.service-icon svg{width:24px;height:24px}
.icon-code{background:linear-gradient(135deg,var(--teal),var(--teal-dark))}
.icon-flow{background:linear-gradient(135deg,var(--gold),#c98a02)}
.icon-ai{background:linear-gradient(135deg,var(--violet),#7c5ce0)}
.icon-cloud{background:linear-gradient(135deg,#60a5fa,#2563eb)}

/* ---------- SEYAN.NET ---------- */
.seyannet{padding:100px 0}
.seyannet-inner{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.seyannet-copy p{color:var(--ink-soft);margin:18px 0 22px;font-size:1.02rem}
.seyannet-list li{
  position:relative;padding-left:26px;margin-bottom:12px;color:var(--ink-soft);font-size:.95rem;
}
.seyannet-list li::before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:700}

.server-card{
  background:var(--navy-850);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-lg);
}
.floaty{animation:floaty 6s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.server-row{
  display:flex;align-items:center;gap:10px;font-size:.85rem;color:var(--ink-soft);
  padding:9px 0;border-bottom:1px solid var(--border);font-family:'JetBrains Mono',monospace;
}
.server-row:last-of-type{border-bottom:none}
.server-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.server-dot.on{background:var(--teal);box-shadow:0 0 8px var(--teal);animation:pulse 2s ease-in-out infinite}
.server-status{margin-left:auto;color:var(--teal);font-size:.75rem}
.server-bars{display:flex;align-items:flex-end;gap:8px;height:70px;margin-top:16px}
.server-bar{flex:1;height:var(--h);background:linear-gradient(180deg,var(--teal),var(--teal-dark));border-radius:3px 3px 0 0;animation:growBar 1s ease both}
@keyframes growBar{from{transform:scaleY(0);transform-origin:bottom}to{transform:scaleY(1)}}

/* ---------- PROJECTS ---------- */
.projects{padding:100px 0}
.project-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;align-items:stretch}
.project-card{
  position:relative;overflow:hidden;
  background:rgba(255,255,255,.03);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px;display:flex;flex-direction:column;gap:18px;
  transition:transform .3s ease,border-color .3s ease;
}
.project-card.featured{
  flex-direction:row;align-items:center;border-color:rgba(79,227,193,.3);
  background:linear-gradient(135deg,rgba(79,227,193,.08),rgba(255,255,255,.02));
}
.project-card-wide{grid-column:1/-1;flex-direction:row;align-items:center}
.project-card:hover{transform:translateY(-6px)}
.project-glow{position:absolute;inset:-40%;background:radial-gradient(circle,rgba(79,227,193,.18),transparent 60%);animation:spin 12s linear infinite;pointer-events:none}
@keyframes spin{to{transform:rotate(360deg)}}
.project-icon{
  width:76px;height:76px;border-radius:20px;overflow:hidden;flex-shrink:0;
  box-shadow:0 12px 30px rgba(0,0,0,.35);
}
.project-icon img{width:100%;height:100%;object-fit:cover}
.project-icon-solid{
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--teal),var(--teal-dark));
}
.project-icon-solid svg{width:32px;height:32px}
.project-body{position:relative;z-index:1}
.project-tag{
  display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.05em;
  color:var(--teal);background:rgba(79,227,193,.12);padding:4px 12px;border-radius:999px;
  margin-bottom:12px;text-transform:uppercase;
}
.project-tag-service{color:var(--violet);background:rgba(167,139,250,.12)}
.project-card h3{margin-bottom:10px}
.project-card p{color:var(--ink-soft);font-size:.92rem}
.project-link{display:inline-block;margin-top:14px;color:var(--teal);font-weight:600;font-size:.9rem}

/* ---------- CONTACT ---------- */
.contact{padding:100px 0 60px}
.contact-inner{text-align:center;max-width:560px;margin:0 auto}
.contact-inner p{color:var(--ink-soft);margin:16px 0 30px}
.contact-form{display:flex;flex-direction:column;gap:12px;max-width:460px;margin:0 auto;text-align:left}
.contact-form input,.contact-form textarea{
  padding:14px 18px;border-radius:10px;border:1px solid var(--border);
  background:rgba(255,255,255,.04);color:var(--ink);font-size:.95rem;font-family:inherit;resize:vertical;
}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:var(--ink-soft)}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--teal);border-color:transparent}
.contact-form button:disabled{opacity:.6;cursor:not-allowed}
.form-note{margin-top:14px;color:var(--teal);font-size:.88rem;min-height:1.2em;text-align:center}
.form-note.error{color:#f87171}

/* ---------- FOOTER ---------- */
.site-footer{border-top:1px solid var(--border);padding:28px 0}
.footer-bottom{text-align:center;font-size:.85rem;color:var(--ink-soft)}
.footer-bottom strong{color:var(--teal)}

/* ---------- REVEAL ---------- */
.reveal-up{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal-up.in-view{opacity:1;transform:translateY(0)}
.delay-1.in-view{transition-delay:.1s}
.delay-2.in-view{transition-delay:.2s}
.delay-3.in-view{transition-delay:.3s}
.delay-4.in-view{transition-delay:.4s}

/* ---------- RESPONSIVE ---------- */
@media (max-width:960px){
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .seyannet-inner{grid-template-columns:1fr}
  .project-grid{grid-template-columns:1fr}
  .project-card.featured{flex-direction:column;align-items:flex-start}
  .project-card-wide{flex-direction:column;align-items:flex-start}
}
@media (max-width:760px){
  .main-nav{
    position:fixed;top:88px;left:0;right:0;background:var(--navy-900);
    flex-direction:column;padding:20px 24px;gap:4px;
    transform:translateY(-120%);opacity:0;transition:.3s;
    border-bottom:1px solid var(--border);
  }
  .main-nav.open{transform:translateY(0);opacity:1}
  .main-nav a:not(.mobile-cta){padding:12px 0;border-bottom:1px solid var(--border)}
  .mobile-cta{display:inline-flex;justify-content:center;margin-top:16px}
  .nav-toggle{display:flex}
  .header-actions{display:none}
  .service-grid{grid-template-columns:1fr}
  .hero{padding:120px 0 70px}
}