/* ============================================================
   Intrusica — Global Stylesheet
   Dark enterprise theme with blue accents
   ============================================================ */

:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #0f1522;
  --bg-card: #131b2c;
  --bg-card-hover: #182236;
  --border: #1e2a41;
  --border-light: #2a3a5c;
  --accent: #3b82f6;
  --accent-bright: #60a5fa;
  --accent-dim: #1d4ed8;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --text-primary: #e6edf7;
  --text-secondary: #9db0cc;
  --text-muted: #64748b;
  --success: #34d399;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
  --radius: 12px;
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { max-width: 100%; }

a { color: var(--accent-bright); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.5rem); }
h3 { font-size: 1.25rem; }

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-bright);
  background: var(--accent-glow);
  border: 1px solid var(--border-light);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 18px;
}

.section-title { margin-bottom: 14px; }
.section-sub { color: var(--text-secondary); max-width: 640px; font-size: 1.06rem; }
.section-head { margin-bottom: 52px; }
.section-head.center { text-align: center; }
.section-head.center .section-sub { margin: 0 auto; }

section { padding: 90px 0; }
section.alt { background: var(--bg-secondary); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: var(--font-main);
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dim) 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(59, 130, 246, 0.5);
  color: #fff;
}
.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}
.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
  color: var(--accent-bright);
  transform: translateY(-2px);
}
.btn-lg { padding: 16px 34px; font-size: 1.05rem; }

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0;
  font-weight: 800;
  font-size: 1.22rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.logo:hover { color: var(--text-primary); }
.logo svg { flex-shrink: 0; margin-right: 10px; }
.logo span { color: var(--accent-bright); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}
.nav-links a {
  color: var(--text-secondary);
  font-size: 0.94rem;
  font-weight: 500;
}
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); }
.nav-links a.active { color: var(--accent-bright); }
.nav-cta { margin-left: 8px; }
.nav-cta .btn { padding: 10px 20px; font-size: 0.9rem; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  margin: 5px 0;
  transition: var(--transition);
  border-radius: 2px;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 190px 0 110px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -30%; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 700px;
  background: radial-gradient(ellipse at center, rgba(59,130,246,0.14) 0%, transparent 65%);
  pointer-events: none;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 30%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, black 30%, transparent 75%);
  pointer-events: none;
}
.hero-content { position: relative; text-align: center; max-width: 850px; margin: 0 auto; }
.hero h1 {
  margin-bottom: 22px;
  background: linear-gradient(180deg, #fff 30%, #a8c2e8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--text-secondary);
  margin-bottom: 38px;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}
.hero-ctas { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-bright);
  background: var(--accent-glow);
  border: 1px solid var(--border-light);
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 26px;
}
.hero-badge .pulse-dot {
  width: 7px; height: 7px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5); }
  50% { box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
}

/* Page hero (inner pages) */
.page-hero {
  position: relative;
  padding: 165px 0 70px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -50%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 65%);
  pointer-events: none;
}
.page-hero h1 { margin-bottom: 14px; }
.page-hero .section-sub { font-size: 1.1rem; }

/* ---------- Cards ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
  position: relative;
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}
.card-icon {
  width: 52px; height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  margin-bottom: 20px;
  color: var(--accent-bright);
}
.card h3 { margin-bottom: 12px; }
.card p { color: var(--text-secondary); font-size: 0.95rem; }
.card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-weight: 600;
  font-size: 0.92rem;
}

/* ---------- Stats ---------- */
.stats-band {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 60px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}
.stat-value {
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--accent-bright);
  font-family: var(--font-mono);
  letter-spacing: -0.03em;
}
.stat-label { color: var(--text-secondary); font-size: 0.95rem; margin-top: 6px; }

/* ---------- Service detail blocks ---------- */
.service-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  margin-bottom: 28px;
  transition: var(--transition);
}
.service-block:hover { border-color: var(--border-light); }
.service-block-head {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 22px;
}
.service-block-head .card-icon { margin-bottom: 0; flex-shrink: 0; }
.service-block-head h3 { font-size: 1.45rem; margin-bottom: 6px; }
.service-block-head p { color: var(--text-secondary); }
.service-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 26px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
}
.service-detail h4 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-bright);
  font-family: var(--font-mono);
  margin-bottom: 12px;
}
.service-detail ul { list-style: none; }
.service-detail li {
  color: var(--text-secondary);
  font-size: 0.92rem;
  padding: 4px 0 4px 22px;
  position: relative;
}
.service-detail li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ---------- Timeline / methodology ---------- */
.timeline { position: relative; max-width: 820px; margin: 0 auto; }
.timeline::before {
  content: '';
  position: absolute;
  left: 27px; top: 10px; bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--border-light) 100%);
}
.timeline-step {
  position: relative;
  padding: 0 0 42px 84px;
}
.timeline-step:last-child { padding-bottom: 0; }
.timeline-num {
  position: absolute;
  left: 0; top: 0;
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 2px solid var(--accent);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent-bright);
  box-shadow: 0 0 0 6px var(--bg-primary), 0 0 24px rgba(59,130,246,0.25);
}
.timeline-step h3 { margin-bottom: 8px; }
.timeline-step p { color: var(--text-secondary); }

/* ---------- Testimonials ---------- */
.testimonial {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.testimonial .quote-mark { color: var(--accent); font-size: 2.4rem; line-height: 1; font-family: Georgia, serif; }
.testimonial p { color: var(--text-secondary); font-size: 0.97rem; flex-grow: 1; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.testimonial-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-dim), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  font-size: 0.9rem;
}
.testimonial-author strong { display: block; font-size: 0.95rem; }
.testimonial-author span { color: var(--text-muted); font-size: 0.85rem; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open { border-color: var(--border-light); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 1.02rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}
.faq-q .faq-arrow { transition: transform 0.3s ease; color: var(--accent-bright); flex-shrink: 0; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-a-inner { padding: 0 26px 22px; color: var(--text-secondary); font-size: 0.96rem; }

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: 0.9rem; font-weight: 600; color: var(--text-secondary); }
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 13px 16px;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.96rem;
  transition: var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: 0.83rem; color: var(--text-muted); }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  background: linear-gradient(135deg, #101a30 0%, #0d1526 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  text-align: center;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 700px; height: 400px;
  background: radial-gradient(ellipse, rgba(59,130,246,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.cta-band h2 { margin-bottom: 14px; position: relative; }
.cta-band p { color: var(--text-secondary); margin-bottom: 32px; max-width: 560px; margin-left: auto; margin-right: auto; position: relative; }
.cta-band .hero-ctas { position: relative; }

/* ---------- Footer ---------- */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 64px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand p { color: var(--text-secondary); font-size: 0.92rem; margin-top: 14px; max-width: 300px; }
.footer-col h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 18px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--text-secondary); font-size: 0.93rem; }
.footer-col a:hover { color: var(--accent-bright); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--text-muted);
  font-size: 0.87rem;
}
.footer-bottom .footer-legal { display: flex; gap: 22px; }
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--accent-bright); }

/* ---------- Cookie banner ---------- */
.cookie-banner {
  position: fixed;
  bottom: 20px; left: 20px; right: 20px;
  max-width: 560px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 22px 26px;
  z-index: 2000;
  box-shadow: 0 16px 60px rgba(0,0,0,0.6);
  display: none;
  animation: slideUp 0.4s ease;
}
.cookie-banner.visible { display: block; }
@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.cookie-banner p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 16px; }
.cookie-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.cookie-actions .btn { padding: 9px 20px; font-size: 0.88rem; }

/* ---------- Blog ---------- */
.blog-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 0;
}
.blog-card-img {
  height: 180px;
  background: linear-gradient(135deg, #10203c 0%, #0c1424 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
}
.blog-card-body { padding: 26px; display: flex; flex-direction: column; flex-grow: 1; }
.blog-meta {
  display: flex;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.blog-meta .tag { color: var(--accent-bright); }
.blog-card-body h3 { font-size: 1.12rem; margin-bottom: 10px; }
.blog-card-body p { flex-grow: 1; }

/* ---------- Misc ---------- */
.check-list { list-style: none; }
.check-list li {
  padding: 8px 0 8px 32px;
  position: relative;
  color: var(--text-secondary);
}
.check-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 12px;
  width: 18px; height: 18px;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  border-radius: 50%;
}
.check-list li::after {
  content: '';
  position: absolute;
  left: 5px; top: 16px;
  width: 8px; height: 5px;
  border-left: 2px solid var(--accent-bright);
  border-bottom: 2px solid var(--accent-bright);
  transform: rotate(-45deg);
}

.legal-content { max-width: 800px; margin: 0 auto; }
.legal-content h2 { font-size: 1.45rem; margin: 40px 0 14px; }
.legal-content h2:first-child { margin-top: 0; }
.legal-content p, .legal-content li { color: var(--text-secondary); margin-bottom: 12px; }
.legal-content ul { padding-left: 24px; }
.legal-updated { font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-muted); margin-bottom: 34px; }

.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-bright);
}
.cert-badges { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Scroll animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation: none !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .service-detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  section { padding: 64px 0; }
  .hero { padding: 140px 0 80px; }
  .page-hero { padding: 130px 0 54px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 24px 24px;
    transform: translateY(-130%);
    transition: transform 0.35s ease;
    z-index: -1;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 13px 0; font-size: 1.02rem; }
  .nav-cta { margin: 12px 0 0; }
  .service-block { padding: 28px 22px; }
  .timeline::before { left: 21px; }
  .timeline-step { padding-left: 66px; }
  .timeline-num { width: 44px; height: 44px; font-size: 0.95rem; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; }
}