/* ============================================================
   ABtech Systems — Section Styles
   ============================================================ */

/* ---- NAVIGATION ---- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: box-shadow var(--transition);
}
.navbar.scrolled {
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.1rem;
}
.logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: white;
  font-weight: 700;
  box-shadow: 0 0 16px rgba(0,212,255,0.3);
}
.logo-text { color: var(--text-primary); }
.logo-text span { color: var(--accent-cyan); }
.logo-img { height: clamp(60px, 14vw, 250px); width: auto; display: block; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: var(--transition);
}

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--nav-height);
}

#particles-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(0,212,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

.hero-glow {
  position: absolute;
  top: 20%; left: 50%;
  transform: translate(-50%, -50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,212,255,0.08) 0%, rgba(124,58,237,0.06) 40%, transparent 70%);
  border-radius: 50%;
  z-index: 0;
  animation: pulse 6s ease-in-out infinite;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.25);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}
.hero-tag-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  animation: pulse 2s ease-in-out infinite;
}

.hero h1 { margin-bottom: 24px; }
.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-stat { text-align: left; }
.hero-stat-num {
  font-size: 1.8rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  line-height: 1;
}
.hero-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
  animation: fadeIn 1.5s 1s both;
}
.scroll-mouse {
  width: 22px; height: 34px;
  border: 2px solid rgba(0,212,255,0.3);
  border-radius: 11px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}
.scroll-mouse::before {
  content: '';
  width: 3px; height: 6px;
  background: var(--accent-cyan);
  border-radius: 2px;
  animation: float 1.5s ease-in-out infinite;
}

/* ---- SERVICES ---- */
.services { padding: var(--section-pad) 0; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

/* ---- ABOUT ---- */
.about {
  padding: var(--section-pad) 0;
  position: relative;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-visual {
  position: relative;
}
.about-terminal {
  background: rgba(0,0,0,0.6);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card), var(--shadow-glow);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid var(--border);
}
.terminal-dots span {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  margin-right: 5px;
}
.terminal-dots span:nth-child(1) { background: #ff5f57; }
.terminal-dots span:nth-child(2) { background: #febc2e; }
.terminal-dots span:nth-child(3) { background: #28c840; }
.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}
.terminal-body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 2;
}
.term-line { display: flex; align-items: baseline; gap: 8px; }
.term-prompt { color: var(--accent-cyan); }
.term-cmd    { color: #e2e8f0; }
.term-out    { color: var(--text-secondary); padding-left: 20px; }
.term-success { color: var(--accent-green); padding-left: 20px; }

.about-content h2 { margin-bottom: 20px; }
.about-content p  { color: var(--text-secondary); margin-bottom: 24px; line-height: 1.8; }

.feature-list { display: flex; flex-direction: column; gap: 16px; }
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.feature-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent-cyan-dim);
  border: 1px solid var(--border-hover);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.feature-text h4 { font-size: 0.95rem; margin-bottom: 4px; }
.feature-text p  { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; margin: 0; }

/* ---- PROCESS ---- */
.process {
  padding: var(--section-pad) 0;
  background: linear-gradient(180deg, transparent, rgba(0,212,255,0.02) 50%, transparent);
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 36px; left: calc(12.5% + 20px); right: calc(12.5% + 20px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-hover), transparent);
}
.process-step { text-align: center; }
.step-number {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: rgba(13,18,36,0.9);
  border: 1px solid var(--border-hover);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-cyan);
  position: relative;
  box-shadow: 0 0 20px rgba(0,212,255,0.1);
  transition: var(--transition);
}
.process-step:hover .step-number {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 30px rgba(0,212,255,0.25);
}
.step-number::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid rgba(0,212,255,0.15);
}
.process-step h3 { font-size: 1rem; margin-bottom: 10px; }
.process-step p  { font-size: 0.85rem; color: var(--text-secondary); }

/* ---- CONTACT / QUOTE ---- */
.contact {
  padding: var(--section-pad) 0;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 48px;
  align-items: start;
}
.contact-info h2 { margin-bottom: 16px; }
.contact-info p  { color: var(--text-secondary); margin-bottom: 32px; line-height: 1.8; }
.contact-items { display: flex; flex-direction: column; gap: 20px; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}
.contact-item-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-cyan-dim);
  border: 1px solid var(--border-hover);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact-item-label { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 2px; text-transform: uppercase; letter-spacing: 0.06em; }
.contact-item-value { font-size: 0.95rem; color: var(--text-primary); }

.contact-form { padding: 36px; }

/* ---- FOOTER ---- */
.footer {
  padding: 60px 0 32px;
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7; margin-top: 16px; max-width: 280px; }
.footer-col h4 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--accent-cyan); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.83rem;
  color: var(--text-muted);
}
.footer-social {
  display: flex;
  gap: 12px;
}
.social-btn {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
}
.social-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0,212,255,0.2);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { order: -1; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-links  { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height); left: 0; right: 0;
    background: rgba(8,12,24,0.97);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
    animation: fadeDown 0.2s ease;
  }
  .hero-stats { gap: 24px; }
  .services-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}