/* Light Theme CSS for Pulse Logix - Premium Semiconductor Institute */

:root {
    --bg-light-primary: #ffffff;
    --bg-light-secondary: #f8fafc;
    --bg-glass-light: rgba(255, 255, 255, 0.95);
    --border-light: #e2e8f0;
    
    --navy-primary: #0f172a;
    --navy-secondary: #1e293b;
    --text-muted: #64748b;
    
    --accent-blue: #0284c7;
    --accent-blue-hover: #0369a1;
    --accent-orange: #f97316;
    --accent-orange-hover: #ea580c;
    --accent-soft-blue: #e0f2fe;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light-primary);
    color: var(--navy-secondary);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

h1, h2, h3, h4, h5, h6, .brand-text {
    font-family: 'Outfit', sans-serif;
    color: var(--navy-primary);
}

.py-6 {
    padding-top: 5rem;
    padding-bottom: 5rem;
}

.max-w-700 { max-width: 700px; }
.max-w-900 { max-width: 900px; }

/* Navbar Styling */
.custom-navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    transition: all 0.3s ease;
}

.brand-text {
    color: var(--navy-primary) !important;
    font-weight: 800;
    font-size: 1.5rem;
}

.brand-accent { color: var(--accent-blue); }

.nav-link {
    color: var(--navy-secondary) !important;
    font-weight: 500;
    margin: 0 4px;
    transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-blue) !important;
}

/* Background Visual Headers & Hero Improvements */
.hero-wrapper {
    position: relative;
    min-height: 85vh;
}

.hero-subtitle {
    color: #f1f5f9 !important;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
    font-size: 1.2rem;
    max-width: 620px;
}

.hero-title {
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

.bg-primary-soft {
    background-color: rgba(2, 132, 199, 0.2) !important;
    border: 1px solid rgba(2, 132, 199, 0.3);
}

.btn-explore {
    padding: 12px 32px !important;
    font-size: 1rem;
    letter-spacing: 0.3px;
}

.page-header {
  padding: 130px 0 60px 0;
  background: linear-gradient(rgba(15, 23, 42, 0.75), rgba(15, 23, 42, 0.75)), 
              url('https://images.unsplash.com/photo-1526374965328-7f61d4dc18c5?auto=format&fit=crop&w=1600&q=80');
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--border-light);
}

.text-dark-heading {
  color: #0f172a !important;
  font-weight: 700;
}

.text-dark-body {
  color: #334155 !important;
}

/* Text & Accent Colors */
.text-gradient {
    background: linear-gradient(135deg, #38bdf8 0%, #60a5fa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn-talk-expert {
  background-color: #2563eb !important;
  color: #ffffff !important;
  border: 2px solid #2563eb !important;
  padding: 12px 28px;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.3s ease;
  display: inline-block;
  text-decoration: none;
}

.btn-talk-expert:hover {
  background-color: #1d4ed8 !important;
  border-color: #1d4ed8 !important;
  color: #ffffff !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

/* Primary Offerings & Ecosystem Interactive Animations */
.primary-offering-card {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), 
                box-shadow 0.4s ease, 
                border-color 0.3s ease !important;
    border-top: 3.5px solid transparent;
}

.primary-offering-card:hover {
    transform: translateY(-10px) scale(1.02) !important;
    box-shadow: 0 20px 35px -8px rgba(2, 132, 199, 0.18) !important;
    border-top-color: var(--accent-blue) !important;
}

/* Enhanced Differentiated Section Background */
.section-differentiated {
    background: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%) !important;
    border-top: 1px solid #cbd5e1;
    border-bottom: 1px solid #cbd5e1;
    position: relative;
    padding: 90px 0;
}

/* Subtle Tech Grid Overlay for Section Background */
.section-differentiated::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(rgba(2, 132, 199, 0.08) 1px, transparent 1px);
    background-size: 24px 24px;
    pointer-events: none;
}

/* Prominent Card Base Styling */
.card-prominent {
    padding: 2rem 1.75rem;
    border-radius: 14px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.35s ease, border-color 0.3s ease;
}

/* Specific Pillar Cards in Differentiated Section */
.pillar-card.card-prominent {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-top: 3.5px solid var(--accent-blue);
    position: relative;
    overflow: hidden;
    transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    will-change: transform, box-shadow;
}

/* Dynamic Hover Effects */
.pillar-card.card-prominent:hover {
    transform: translateY(-8px) scale(1.02);
    border-top-color: var(--accent-orange);
    box-shadow: 0 18px 30px -8px rgba(2, 132, 199, 0.2) !important;
}

/* Pillar Icon Animations */
.pillar-card .pillar-icon,
.primary-offering-card .pillar-icon {
    width: 52px;
    height: 52px;
    transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.pillar-card:hover .pillar-icon,
.primary-offering-card:hover .pillar-icon {
    background-color: var(--accent-blue) !important;
    color: #ffffff !important;
    transform: scale(1.12) rotate(6deg);
}

.pillar-card:hover .pillar-icon i,
.primary-offering-card:hover .pillar-icon i {
    color: #ffffff !important;
}

/* Pillar Number Styling */
.pillar-number {
    margin-left: auto;
    font-family: 'Outfit', sans-serif;
    transition: opacity 0.3s ease;
}

.pillar-card:hover .pillar-number {
    opacity: 0.9 !important;
    color: var(--accent-blue) !important;
}

.text-accent {
  color: #0284c7 !important;
  font-weight: 600;
}
.text-navy { color: var(--navy-primary) !important; }
.text-muted-custom { color: var(--text-muted) !important; }

.bg-accent-soft { background: var(--accent-soft-blue); }
.bg-light-secondary { background-color: var(--bg-light-secondary); }
.bg-light-primary { background-color: var(--bg-light-primary); }

/* Interactive Cards */
.glass-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
    transition: transform 0.35s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-8px);
    border-color: var(--accent-blue);
    box-shadow: 0 20px 40px rgba(2, 132, 199, 0.12);
}

.border-accent-glow {
    border: 2px solid var(--accent-blue) !important;
    box-shadow: 0 15px 35px rgba(2, 132, 199, 0.15);
}

.popular-tag {
    position: absolute;
    top: -12px;
    right: 20px;
    background: linear-gradient(135deg, var(--accent-orange), #ea580c);
    color: #ffffff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 20px;
    box-shadow: 0 4px 10px rgba(249, 115, 22, 0.3);
}

/* Custom Buttons */
.btn-gradient-cta {
    background: linear-gradient(135deg, var(--accent-orange), #ea580c);
    color: #ffffff !important;
    border: none;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-gradient-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(249, 115, 22, 0.35);
}

.btn-gradient-primary {
    background: linear-gradient(135deg, var(--accent-blue), #2563eb);
    color: #ffffff !important;
    border: none;
    font-weight: 600;
}

.btn-gradient-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(2, 132, 199, 0.3);
}

.btn-outline-accent {
    border: 2px solid var(--accent-blue);
    color: var(--accent-blue);
    font-weight: 600;
}

.btn-outline-accent:hover {
    background: var(--accent-blue);
    color: #ffffff;
}

/* Form Controls */
.custom-input {
    background: #ffffff;
    border: 1px solid var(--border-light);
    color: var(--navy-primary) !important;
    border-radius: 8px;
    padding: 12px 16px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.02);
}

.custom-input:focus {
    background: #ffffff;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.15);
}

.custom-input::placeholder { color: #94a3b8; }

/* Accordions */
.custom-accordion .accordion-item {
    border: 1px solid var(--border-light) !important;
    background-color: #ffffff;
}

.custom-accordion .accordion-button {
    color: var(--navy-primary) !important;
    background-color: #ffffff;
    font-weight: 600;
}

.custom-accordion .accordion-button:not(.collapsed) {
    color: var(--accent-blue) !important;
    background-color: var(--accent-soft-blue);
}

/* Footer Styling */
.footer-light {
  background-color: var(--navy-primary) !important;
  color: #94a3b8;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-light .brand-text { color: #ffffff !important; }
.footer-light h6 { color: #ffffff !important; }
.footer-light a { color: #cbd5e1; }
.footer-light a:hover { color: var(--accent-soft-blue); }