/* ============================================================
   NEXUS DIGITAL SOLUTIONS — Official Website Stylesheet
   Brand Colors: Navy #0A1628 | Deep Blue #1A3C6E | Cyan #00AACC | Gold #E8A020
   ============================================================ */

:root {
  --navy:     #0A1628;
  --navy-mid: #0D1F38;
  --deep:     #1A3C6E;
  --cyan:     #00AACC;
  --cyan-dim: rgba(0,170,204,0.15);
  --gold:     #E8A020;
  --gold-dim: rgba(232,160,32,0.15);
  --white:    #FFFFFF;
  --soft:     #F5F5F5;
  --muted:    #8A9BB0;
  --border:   rgba(0,170,204,0.2);

  --font-display: 'Courier New', Courier, monospace;
  --font-body:    'Sora', 'Segoe UI', sans-serif;

  --max-w: 1200px;
  --radius: 4px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--navy);
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--navy); }
::-webkit-scrollbar-thumb { background: var(--cyan); border-radius: 2px; }

/* ── SELECTION ── */
::selection { background: var(--cyan); color: var(--navy); }

/* ── TYPOGRAPHY ── */
h1,h2,h3,h4 { font-family: var(--font-display); letter-spacing: 0.05em; line-height: 1.2; }

/* ── UTILITY ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 2rem; }
.tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--cyan);
  border: 1px solid var(--border);
  padding: 0.25rem 0.75rem;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

/* ── NOISE OVERLAY ── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* ======================================================
   NAVIGATION
   ====================================================== */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 1.25rem 0;
  transition: background var(--transition), border-color var(--transition), padding var(--transition);
  border-bottom: 1px solid transparent;
}
#navbar.scrolled {
  background: rgba(10,22,40,0.97);
  border-color: var(--border);
  padding: 0.875rem 0;
  backdrop-filter: blur(12px);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max-w); margin: 0 auto; padding: 0 2rem;
}
.nav-logo img { height: 36px; display: block; }
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -4px; left: 0; right: 100%;
  height: 1px; background: var(--cyan);
  transition: right var(--transition);
}
.nav-links a:hover { color: var(--white); }
.nav-links a:hover::after { right: 0; }
.nav-cta {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy);
  background: var(--cyan);
  padding: 0.5rem 1.25rem;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition);
}
.nav-cta:hover { background: var(--gold); transform: translateY(-1px); }

/* hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--cyan); transition: var(--transition); }

/* mobile nav */
.mobile-nav {
  display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: var(--navy-mid); z-index: 999;
  flex-direction: column; align-items: center; justify-content: center; gap: 2.5rem;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-family: var(--font-display);
  font-size: 1.1rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--white);
  text-decoration: none; transition: color var(--transition);
}
.mobile-nav a:hover { color: var(--cyan); }
.mobile-close {
  position: absolute; top: 1.5rem; right: 2rem;
  background: none; border: none; color: var(--muted);
  font-size: 1.5rem; cursor: pointer;
}

/* ======================================================
   HERO
   ====================================================== */
#hero {
  min-height: 100vh;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding: 7rem 0 4rem;
}

/* animated grid bg */
#hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,170,204,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,170,204,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridPan 25s linear infinite;
}
@keyframes gridPan { 0%{background-position:0 0} 100%{background-position:60px 60px} }

/* glow blobs */
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.blob-1 { width: 500px; height: 500px; background: rgba(0,170,204,0.08); top: -100px; right: -100px; }
.blob-2 { width: 350px; height: 350px; background: rgba(232,160,32,0.06); bottom: 50px; left: -80px; }

.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: center;
  max-width: var(--max-w); margin: 0 auto; padding: 0 2rem;
}
.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.7rem; letter-spacing: 0.2em;
  color: var(--cyan); text-transform: uppercase;
  margin-bottom: 1.25rem;
  display: flex; align-items: center; gap: 0.75rem;
}
.hero-eyebrow::before {
  content: ''; display: block;
  width: 30px; height: 1px; background: var(--cyan);
}
.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-family: var(--font-display);
  letter-spacing: 0.06em;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}
.hero-title .line-gold { color: var(--gold); }
.hero-divider {
  width: 100%; height: 1px;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
  margin: 1.5rem 0;
}
.hero-subtitle {
  font-family: var(--font-display);
  font-size: 0.8rem; letter-spacing: 0.18em;
  color: var(--cyan); text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero-desc {
  color: var(--muted); font-size: 1rem;
  line-height: 1.8; max-width: 480px;
  margin-bottom: 2.5rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-primary {
  font-family: var(--font-display);
  font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; text-decoration: none;
  color: var(--navy); background: var(--cyan);
  padding: 0.85rem 2rem;
  transition: background var(--transition), transform var(--transition);
  display: inline-block;
}
.btn-primary:hover { background: var(--gold); transform: translateY(-2px); }
.btn-outline {
  font-family: var(--font-display);
  font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase; text-decoration: none;
  color: var(--cyan); border: 1px solid var(--cyan);
  padding: 0.85rem 2rem;
  transition: background var(--transition), color var(--transition), transform var(--transition);
  display: inline-block;
}
.btn-outline:hover { background: var(--cyan-dim); color: var(--white); transform: translateY(-2px); }

/* hero visual — network node */
.hero-visual {
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.hero-visual img {
  width: 100%; max-width: 380px;
  animation: float 6s ease-in-out infinite;
  filter: drop-shadow(0 0 40px rgba(0,170,204,0.25));
}
@keyframes float {
  0%,100%{transform:translateY(0)} 50%{transform:translateY(-18px)}
}

/* pacra badge */
.pacra-badge {
  display: inline-flex; align-items: center; gap: 0.6rem;
  margin-bottom: 2rem;
  background: rgba(232,160,32,0.08);
  border: 1px solid rgba(232,160,32,0.3);
  padding: 0.5rem 1rem;
}
.pacra-badge .dot { width:7px; height:7px; border-radius:50%; background:var(--gold); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(1.3)} }
.pacra-badge span {
  font-family: var(--font-display);
  font-size: 0.65rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--gold);
}

/* ======================================================
   ABOUT
   ====================================================== */
#about {
  padding: 6rem 0;
  position: relative;
}
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center;
}
.about-img-wrap {
  position: relative;
}
.about-img-wrap img {
  width: 100%; max-width: 380px;
  display: block;
}
.about-frame {
  position: absolute;
  border: 1px solid var(--border);
  top: -20px; left: -20px; right: 20px; bottom: 20px;
  pointer-events: none;
}
.about-frame::before {
  content: ''; position: absolute;
  top: 0; left: 0; width: 20px; height: 20px;
  border-top: 2px solid var(--cyan); border-left: 2px solid var(--cyan);
}
.about-frame::after {
  content: ''; position: absolute;
  bottom: 0; right: 0; width: 20px; height: 20px;
  border-bottom: 2px solid var(--gold); border-right: 2px solid var(--gold);
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  letter-spacing: 0.06em; margin-bottom: 1.5rem;
}
.section-title .accent { color: var(--cyan); }
.section-body {
  color: var(--muted); line-height: 1.9; font-size: 0.97rem;
  margin-bottom: 1.25rem;
}
.values-list { list-style: none; margin-top: 1.5rem; display: flex; flex-direction: column; gap: 0.75rem; }
.values-list li {
  display: flex; align-items: flex-start; gap: 0.75rem;
  color: var(--muted); font-size: 0.93rem;
}
.values-list li::before {
  content: '▸'; color: var(--cyan); flex-shrink: 0; margin-top: 2px;
}

/* ======================================================
   SERVICES
   ====================================================== */
#services {
  padding: 6rem 0;
  background: linear-gradient(180deg, transparent 0%, rgba(26,60,110,0.12) 50%, transparent 100%);
}
.section-header { text-align: center; margin-bottom: 4rem; }
.section-header .tag { margin-bottom: 1rem; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5px;
  background: var(--border);
  border: 1px solid var(--border);
}
.service-card {
  background: var(--navy);
  padding: 2.5rem 2rem;
  position: relative;
  overflow: hidden;
  transition: background var(--transition);
}
.service-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover { background: rgba(26,60,110,0.2); }
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 44px; height: 44px;
  background: var(--cyan-dim);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; margin-bottom: 1.5rem;
}
.service-num {
  position: absolute; top: 2rem; right: 2rem;
  font-family: var(--font-display);
  font-size: 0.65rem; letter-spacing: 0.15em;
  color: rgba(0,170,204,0.25);
}
.service-card h3 {
  font-size: 0.95rem; letter-spacing: 0.08em;
  margin-bottom: 0.75rem; color: var(--white);
}
.service-card p { color: var(--muted); font-size: 0.88rem; line-height: 1.75; }

/* ======================================================
   WHY NEXUS
   ====================================================== */
#why {
  padding: 6rem 0;
}
.why-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center;
}
.stats-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  background: var(--border);
}
.stat-box {
  background: var(--navy-mid);
  padding: 2rem;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition);
}
.stat-box:hover { border-color: var(--cyan); }
.stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem; font-weight: bold;
  color: var(--cyan);
  display: block; margin-bottom: 0.25rem;
}
.stat-label {
  font-size: 0.78rem; color: var(--muted); letter-spacing: 0.05em;
}

/* ======================================================
   CONTACT
   ====================================================== */
#contact {
  padding: 6rem 0;
  border-top: 1px solid var(--border);
}
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 5rem;
}
.contact-detail {
  display: flex; align-items: center; gap: 1rem;
  margin-bottom: 1rem;
  padding: 1rem;
  border: 1px solid transparent;
}
.contact-clickable {
  text-decoration: none;
  border-color: var(--border);
  transition: background var(--transition), border-color var(--transition);
  cursor: pointer;
}
.contact-clickable:hover {
  background: var(--cyan-dim);
  border-color: var(--cyan);
}
.contact-clickable:hover .contact-arrow { color: var(--cyan); opacity: 1; }
.contact-arrow { margin-left: auto; color: var(--muted); opacity: 0.4; flex-shrink: 0; transition: color var(--transition), opacity var(--transition); }
.contact-icon {
  width: 42px; height: 42px; flex-shrink: 0;
  background: var(--cyan-dim);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.contact-info h4 {
  font-size: 0.65rem; letter-spacing: 0.12em;
  color: var(--muted); text-transform: uppercase; margin-bottom: 0.2rem;
}
.contact-info span, .contact-info a {
  color: var(--white); text-decoration: none;
  font-size: 0.92rem;
}

.social-links { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.5rem; }
.social-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.55rem 1rem;
  background: transparent;
  border: 1px solid var(--border);
  text-decoration: none; color: var(--muted);
  font-family: var(--font-display);
  font-size: 0.68rem; letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all var(--transition);
}
.social-link:hover { background: var(--cyan-dim); border-color: var(--cyan); color: var(--cyan); }

/* contact form */
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
  font-family: var(--font-display);
  font-size: 0.65rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted);
}
.form-group input,
.form-group textarea,
.form-group select {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--white);
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.93rem;
  outline: none;
  transition: border-color var(--transition), background var(--transition);
  resize: none;
  appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(138,155,176,0.5); }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--cyan);
  background: rgba(0,170,204,0.05);
}
.form-group textarea { min-height: 120px; }
.form-group select option { background: var(--navy-mid); }
.btn-submit {
  font-family: var(--font-display);
  font-size: 0.72rem; letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy); background: var(--cyan);
  border: none; padding: 1rem 2rem;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  align-self: flex-start;
}
.btn-submit:hover { background: var(--gold); transform: translateY(-2px); }
.form-note {
  font-size: 0.78rem; color: var(--muted); margin-top: 0.5rem;
  display: none;
}
.form-note.show { display: block; color: var(--cyan); }

/* ======================================================
   FOOTER
   ====================================================== */
footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  background: rgba(0,0,0,0.2);
}
.footer-inner {
  display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 1rem;
}
.footer-logo img { height: 28px; opacity: 0.7; }
.footer-copy {
  font-family: var(--font-display);
  font-size: 0.65rem; letter-spacing: 0.1em;
  color: var(--muted); text-align: center;
}
.footer-pacra {
  font-family: var(--font-display);
  font-size: 0.63rem; letter-spacing: 0.08em;
  color: rgba(232,160,32,0.6);
}

/* ======================================================
   SECTION DIVIDER
   ====================================================== */
.divider {
  width: 100%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 0;
}

/* ======================================================
   SCROLL ANIMATIONS
   ====================================================== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ======================================================
   RESPONSIVE
   ====================================================== */
@media (max-width: 900px) {
  .hero-inner,
  .about-grid,
  .why-inner,
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }

  .hero-visual { order: -1; }
  .hero-visual img { max-width: 260px; }
  .about-img-wrap { display: none; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
}
@media (max-width: 600px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .services-grid { grid-template-columns: 1fr; }
}
@media (min-width: 601px) and (max-width: 900px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
}

/* ======================================================
   WHATSAPP FLOAT BUTTON
   ====================================================== */
.wa-float {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 56px; height: 56px;
  background: #25D366;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  z-index: 999;
  transition: transform var(--transition), box-shadow var(--transition);
  animation: waPop 0.4s ease 1.5s both;
}
.wa-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37,211,102,0.6);
}
@keyframes waPop {
  from { opacity:0; transform: scale(0); }
  to   { opacity:1; transform: scale(1); }
}