/* Shared Base Styles */
*, ::before, ::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Utility: Animate onScroll fade-up */
.animate-fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.animate-fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hover lift */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(0,0,0,0.10);
}

/* Glass morphism */
.glass-panel {
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.55);
  border-radius: 16px;
}

/* Smooth pulse for CTA rings */
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(59,130,246,0.45); }
  70% { box-shadow: 0 0 0 18px rgba(59,130,246,0); }
  100% { box-shadow: 0 0 0 0 rgba(59,130,246,0); }
}
.pulse-ring {
  animation: pulse-ring 2.4s infinite;
}

/* Section spacing */
.section-pad {
  padding: 80px 0;
}
@media (max-width: 768px) {
  .section-pad {
    padding: 48px 0;
  }
}

/* ============================================
   Custom Styles — Professional Gray-Blue Concierge
   ============================================ */

/* Blue accent line — left border decor */
.accent-line {
  border-left: 3px solid #60a5fa;
  padding-left: 16px;
}

/* Blue top-line divider */
.accent-line-top {
  border-top: 3px solid #60a5fa;
}

/* Professional card shadow — subtle depth */
.card-pro {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.card-pro:hover {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06), 0 12px 28px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

/* Blue gradient text utility */
.text-blue-gradient {
  background: linear-gradient(135deg, #475569 0%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Blue border bottom accent for headings */
.heading-accent {
  position: relative;
  display: inline-block;
}
.heading-accent::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 48px;
  height: 3px;
  background: #60a5fa;
  border-radius: 2px;
}

/* Blue corner accents (decorative L-shapes) */
.corner-accent {
  position: relative;
}
.corner-accent::before,
.corner-accent::after {
  content: '';
  position: absolute;
  border-color: #60a5fa;
  border-style: solid;
}
.corner-accent::before {
  top: -12px;
  left: -12px;
  width: 32px;
  height: 32px;
  border-width: 2px 0 0 2px;
  border-radius: 4px 0 0 0;
}
.corner-accent::after {
  bottom: -12px;
  right: -12px;
  width: 32px;
  height: 32px;
  border-width: 0 2px 2px 0;
  border-radius: 0 0 4px 0;
}

/* Smooth section transition divider */
.section-transition::after {
  content: '';
  display: block;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, #bfdbfe, transparent);
}

/* Badge accent */
.badge-accent {
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  color: #3b82f6;
  border: 1px solid #bfdbfe;
}

/* Link underline effect */
.link-underline {
  position: relative;
  text-decoration: none;
}
.link-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: #60a5fa;
  transition: width 0.3s ease;
}
.link-underline:hover::after {
  width: 100%;
}

/* Staggered animation delays */
.anim-delay-1 { transition-delay: 0.1s; }
.anim-delay-2 { transition-delay: 0.2s; }
.anim-delay-3 { transition-delay: 0.3s; }
.anim-delay-4 { transition-delay: 0.4s; }

/* Blue glow for featured elements */
.glow-blue {
  box-shadow: 0 0 20px rgba(96, 165, 250, 0.15);
}

/* Stat number style */
.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #475569, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Mobile nav overflow lock */
@media (max-width: 1024px) {
  .mobile-nav-open {
    overflow: hidden;
  }
}