/* Enhanced animations and interactive styles */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes shimmer {
    0% { background-position: -1000px 0; }
    100% { background-position: 1000px 0; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        transform: translate3d(0, -30px, 0);
    }
    70% {
        transform: translate3d(0, -15px, 0);
    }
    90% {
        transform: translate3d(0, -4px, 0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(14, 165, 233, 0.5);
    }
    50% {
        box-shadow: 0 0 30px rgba(14, 165, 233, 0.8), 0 0 40px rgba(217, 70, 239, 0.6);
    }
}

@keyframes typing {
    from { width: 0 }
    to { width: 100% }
}

@keyframes blink {
    50% { border-color: transparent }
}
.floating {
    animation: float 6s ease-in-out infinite;
}
.animate-fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.animate-fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn 0.6s ease-out;
}

.animate-slide-in-left {
    opacity: 0;
    animation: slideInLeft 0.8s ease-out forwards;
}

.animate-slide-in-right {
    opacity: 0;
    animation: slideInRight 0.8s ease-out forwards;
}

.animate-bounce {
    animation: bounce 1s ease-in-out;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

.animate-rotate {
    animation: rotate 2s linear infinite;
}

.animate-glow {
    animation: glow 2s ease-in-out infinite;
}

.animate-typing {
    overflow: hidden;
    border-right: 2px solid #0ea5e9;
    white-space: nowrap;
    animation: typing 3.5s steps(40, end), blink 0.75s step-end infinite;
}
/* Smooth scrolling with parallax */
html {
    scroll-behavior: smooth;
}

/* Animation delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }
.delay-800 { animation-delay: 0.8s; }
.delay-900 { animation-delay: 0.9s; }
.delay-1000 { animation-delay: 1s; }
/* Custom gradients */
.gradient-text {
    background: linear-gradient(135deg, #0ea5e9 0%, #d946ef 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
/* Enhanced project card effects with staggered animations */
.project-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
}

.project-card.animate {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.project-card:hover::before {
    left: 100%;
}

.project-card:hover {
    transform: translateY(-12px) scale(1.02) rotate(2deg);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.project-card img {
    transition: transform 0.6s ease;
}

.project-card:hover img {
    transform: scale(1.1) rotate(1deg);
}
/* Loading animation */
.loading-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #0ea5e9;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Glass morphism effect */
.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
}
/* Interactive button effects with animations */
.btn-interactive {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    transform: translateY(0);
}

.btn-interactive::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-interactive:hover::before {
    left: 100%;
}

.btn-interactive:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 15px 30px rgba(14, 165, 233, 0.4);
    animation: pulse 0.5s ease-in-out;
}
/* Progress bar animation */
.progress-bar {
    height: 6px;
    background: #e5e7eb;
    border-radius: 3px;
    overflow: hidden;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.progress-bar.visible {
    opacity: 1;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #0ea5e9, #d946ef);
    width: 0%;
    transition: width 0.3s ease;
    animation: shimmer 2s infinite linear;
}
/* Dark mode support */
@media (prefers-color-scheme: dark) {
body {
    background: #0f172a;
    color: #e2e8f0;
}

.glass-effect {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 20px;
}
}

/* Parallax effect */
.parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}
/* Hover effects for skills cards with entrance animations */
.skill-card {
    transition: all 0.3s ease;
    transform-style: preserve-3d;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
}

.skill-card.animate {
    opacity: 1;
    transform: translateY(0) scale(1);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-card:hover {
    transform: translateY(-8px) rotateX(5deg) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    animation: glow 1.5s ease-in-out;
}
/* Text selection styling */
::selection {
    background: rgba(14, 165, 233, 0.2);
    color: inherit;
}

::-moz-selection {
    background: rgba(14, 165, 233, 0.2);
    color: inherit;
}

/* Focus styles for accessibility */
button:focus,
a:focus {
    outline: 2px solid #0ea5e9;
    outline-offset: 2px;
}
/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #1e293b;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #0ea5e9, #d946ef);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #0284c7, #c026d3);
}
/* Floating particles background */
.floating-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.particle {
    position: absolute;
    background: linear-gradient(135deg, #0ea5e9, #d946ef);
    border-radius: 50%;
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .project-card:hover {
        transform: translateY(-4px) scale(1.01);
    }
    
    .skill-card:hover {
        transform: translateY(-4px) scale(1.01);
    }
    
    .btn-interactive:hover {
        transform: translateY(-2px) scale(1.02);
    }
}
/* Loading skeleton */
.skeleton {
    background: linear-gradient(90deg, #334155 25%, #475569 50%, #334155 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
    border-radius: 8px;
}