/* ==========================================================================
   ELECTRO LIVE TECH MAIN STYLESHEET — PREMIUM DESIGN SYSTEM
   ========================================================================== */

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

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
}

/* Focus Accessibility Outline */
:focus-visible {
  outline: 2px solid var(--brand-cyan);
  outline-offset: 2px;
}

/* Container Structure */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-16) 0;
}

.section-title-wrap {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-12) auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 5px var(--space-4);
  background: var(--brand-accent-soft);
  border: 1px solid rgba(2, 132, 199, 0.2);
  border-radius: var(--radius-full);
  color: var(--brand-cyan);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-3);
  text-transform: uppercase;
}

.section-title {
  font-size: var(--fs-2xl);
  margin-bottom: var(--space-3);
  color: var(--text-primary);
}

.section-subtitle {
  font-size: var(--fs-md);
  color: var(--text-secondary);
  line-height: 1.55;
}

/* HEADER & NAVIGATION */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: var(--z-header);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-xs);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-link {
  font-size: var(--fs-base);
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: var(--space-2) 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--brand-cyan);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--brand-accent);
  border-radius: var(--radius-full);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.btn-header-cta {
  background: var(--brand-accent);
  color: var(--text-inverse);
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--fs-sm);
  box-shadow: var(--brand-accent-glow);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.35);
}

.mobile-nav-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text-primary);
  padding: 8px;
  border-radius: var(--radius-sm);
}

/* FOOTER */
.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  padding: var(--space-16) 0 var(--space-8) 0;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-about-logo {
  height: 40px;
  margin-bottom: var(--space-4);
}

.footer-heading {
  font-size: var(--fs-md);
  color: var(--text-primary);
  margin-bottom: var(--space-5);
  font-weight: 700;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  font-size: var(--fs-base);
}

.footer-link {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--brand-cyan);
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

/* RESPONSIVE UTILITIES & BREAKPOINTS */
.desktop-only {
  display: flex;
}

.mobile-only {
  display: none !important;
}

@media (max-width: 1024px) {
  .nav-menu { gap: var(--space-5); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .desktop-only { display: none !important; }
  .mobile-only { display: block !important; }
  .nav-menu { display: none; }
  .mobile-nav-toggle {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem !important;
    color: #0f172a !important;
    background: #f1f5f9 !important;
    border: 1px solid #cbd5e1 !important;
    border-radius: 8px !important;
    padding: 6px 12px !important;
    cursor: pointer !important;
    line-height: 1 !important;
  }
  .section { padding: 32px 0 !important; }
  .section-title-wrap { margin-bottom: 20px !important; }
  .section-title { font-size: 1.35rem !important; line-height: 1.25 !important; }
  .container { padding: 0 14px !important; }
  /* MOBILE COMPACT LEFT-ALIGNED FOOTER STYLES */
  .site-footer {
    padding: 24px 0 110px 0 !important;
  }
  .footer-about-logo {
    height: 30px !important;
    margin-bottom: 6px !important;
  }
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
    margin-bottom: 16px !important;
    text-align: left !important;
  }
  .footer-grid > div {
    text-align: left !important;
  }
  .footer-heading {
    font-size: 0.88rem !important;
    margin-bottom: 6px !important;
    text-align: left !important;
    font-weight: 700 !important;
  }
  .footer-links {
    gap: 4px !important;
    font-size: 0.78rem !important;
    text-align: left !important;
  }
  .footer-link {
    font-size: 0.78rem !important;
  }
  .footer-bottom {
    flex-direction: column !important;
    gap: 8px !important;
    text-align: left !important;
    align-items: flex-start !important;
    font-size: 0.75rem !important;
    padding-top: 14px !important;
    padding-bottom: 16px !important;
    line-height: 1.4 !important;
  }
  .footer-bottom > div {
    text-align: left !important;
  }
}