:root {
  --bs-primary: #3B82F6;
  --bs-primary-rgb: 59, 130, 246;
  --bs-accent: #6366f1;
  --bs-font-sans-serif: 'Inter', system-ui, sans-serif;
}

[data-bs-theme="dark"] {
  --bs-body-bg: #020617;
  /* Slate 950 */
  --bs-body-color: #f8fafc;
  /* Slate 50 */
  --bs-secondary: #94a3b8;
  /* Slate 400 */
}

[data-bs-theme="light"] {
  --bs-body-bg: #f8fafc;
  --bs-body-color: #0f172a;
  --bs-secondary: #475569;
}

body {
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Typography */
.font-display {
  font-family: 'Outfit', sans-serif;
}

.tracking-tight {
  letter-spacing: -0.025em;
}

.tracking-tighter {
  letter-spacing: -0.05em;
}

.tracking-wide {
  letter-spacing: 0.05em;
}

.max-w-3xl {
  max-width: 48rem;
}

.max-w-4xl {
  max-width: 56rem;
}

.max-w-2xl {
  max-width: 42rem;
}

/* Custom Colors & Gradients */
.text-accent {
  color: var(--bs-accent);
}

.text-gradient {
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  background-image: linear-gradient(to right, #3B82F6, #6366f1);
}

[data-bs-theme="dark"] .text-gradient {
  background-image: linear-gradient(to right, #60a5fa, #818cf8);
}

/* Hero Section with AI Background from Unsplash */
.hero-section {
  min-height: 90vh;
  padding-top: 5rem;
  background-image: url('assets/images/main.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  /* Parallax effect */
}

.hero-bg-overlay {
  background-color: rgba(0, 0, 0, 0.65);
  /* Dark overlay to make text pop */
  backdrop-filter: blur(2px);
}

/* Glassmorphism Classes */
.glass-nav {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

[data-bs-theme="dark"] .glass-nav {
  background: rgba(2, 6, 23, 0.7);
  border-bottom-color: rgba(255, 255, 255, 0.05);
}

/* Mobile Navbar Adjustments */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    margin: 0 -0.75rem;
    padding: 1.5rem;
    border-radius: 1rem;
    margin-top: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  }

  [data-bs-theme="dark"] .navbar-collapse {
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.05);
  }

  .navbar-nav {
    align-items: flex-start !important;
    gap: 1rem !important;
  }
}

.glass-card,
.inner-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

[data-bs-theme="dark"] .glass-card,
[data-bs-theme="dark"] .inner-card {
  background: rgba(30, 41, 59, 0.5);
  /* Slate 800 with opacity */
  border-color: rgba(255, 255, 255, 0.05);
}

.glass-badge {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  color: white;
  border-color: rgba(255, 255, 255, 0.2) !important;
}

.glass-btn {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
}

.glass-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Layout & Spacing Defaults */
.section-bg {
  background-color: #f1f5f9;
  /* slate-100 */
}

[data-bs-theme="dark"] .section-bg {
  background-color: rgba(15, 23, 42, 0.5);
  /* slate-900 with opacity */
}

.space-y-4>*+* {
  margin-top: 1rem;
}

.space-y-2>*+* {
  margin-top: 0.5rem;
}

/* Micro-animations */
.hover-scale {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-scale:hover {
  transform: scale(1.05);
}

.hover-lift {
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.hover-lift:hover {
  transform: translateY(-8px);
}

.hover-accent:hover {
  color: var(--bs-accent) !important;
}

.bullet {
  width: 6px;
  height: 6px;
}

.icon-box {
  width: 48px;
  height: 48px;
}

/* Timeline */
.timeline-point {
  width: 20px;
  height: 20px;
  left: -11px;
  top: 5px;
}

.scale-inner {
  transform: scale(0.5);
}

/* Project Gradients */
.bg-gradient-project-1 {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(99, 102, 241, 0.2));
}

.bg-gradient-project-2 {
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.2), rgba(236, 72, 153, 0.2));
}

.bg-gradient-project-3 {
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.2), rgba(16, 185, 129, 0.2));
}

.bg-gradient-project-4 {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(234, 88, 12, 0.2));
}

.abstract-card-hover {
  transition: transform 0.7s ease;
}

.group:hover .abstract-card-hover {
  transform: scale(1.05);
}

.backdrop-blur {
  backdrop-filter: blur(8px);
}

.backdrop-blur-strong {
  backdrop-filter: blur(16px);
}

.filter-blur-100 {
  filter: blur(80px);
}

/* Animation Utils */
.pulse-dot {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: .5;
    transform: scale(0.8);
  }
}

/* Scroll Visibility */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

[data-bs-theme="dark"] ::-webkit-scrollbar-thumb {
  background: #475569;
}

.opacity-50 {
  opacity: .6 !important;
}