body {
    font-family: 'Inter', sans-serif;
    transition: background-color 0.5s ease, color 0.5s ease;
}
.code-font {
    font-family: 'Fira Code', monospace;
}
/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: #0f172a;
}
.dark ::-webkit-scrollbar-track {
    background: #030712;
}
::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: 5px;
    border: 2px solid transparent;
    background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover {
    background: #06b6d4;
    background-clip: content-box;
}

/* Smooth page reveal */
.reveal-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-up.active {
    opacity: 1;
    transform: translateY(0);
}

/* Animated background gradient */
@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.animate-gradient {
    background-size: 200% 200%;
    animation: gradient-shift 15s ease infinite;
}

/* Floating particles or shapes in Hero */
@keyframes float-slow {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(8deg); }
}
@keyframes float-reverse {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(20px) rotate(-8deg); }
}
@keyframes pulse-subtle {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.1); }
}
.animate-float-1 {
    animation: float-slow 10s ease-in-out infinite;
}
.animate-float-2 {
    animation: float-reverse 12s ease-in-out infinite;
}
.animate-pulse-glow {
    animation: pulse-subtle 6s ease-in-out infinite;
}

/* Portfolio card hover animation details */
.portfolio-card {
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.portfolio-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.1);
}
.dark .portfolio-card:hover {
    box-shadow: 0 30px 60px -15px rgba(6, 182, 212, 0.2);
}

/* Glassmorphism utility */
.glass-panel {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}
.dark .glass-panel {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.05);
}
.glass-panel-heavy {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    transition: all 0.3s ease;
}
.dark .glass-panel-heavy {
    background: rgba(15, 23, 42, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Magnetic button effect simulation */
.btn-hover-effect {
    position: relative;
    overflow: hidden;
}
.btn-hover-effect::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300%;
    height: 300%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%) scale(0);
    border-radius: 50%;
    transition: transform 0.6s ease;
}
.btn-hover-effect:hover::after {
    transform: translate(-50%, -50%) scale(1);
}

/* Keyframe animation for fade-in toast */
@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}