/* Custom Animations and Enhancements */

/* Gradient Text Effect */
.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Glassmorphism Cards */
.glass-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

.dark .glass-card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Animated Background */
.animated-bg {
    background: linear-gradient(-45deg, #667eea, #764ba2, #667eea, #764ba2);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Particle Effect */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.1;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: #ffffff;
    border-radius: 50%;
    animation: particleFloat 20s linear infinite;
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) translateX(0px);
        opacity: 1;
    }
    100% {
        transform: translateY(-10vh) translateX(100px);
        opacity: 0;
    }
}

/* Enhanced Timeline */
.timeline-line {
    position: relative;
}

.timeline-line::before {
    content: '';
    position: absolute;
    left: 31px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #3b82f6, #8b5cf6, #ec4899);
    border-radius: 2px;
}

/* Skill Progress Bars */
.skill-progress {
    width: 100%;
    height: 8px;
    background-color: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
}

.dark .skill-progress {
    background-color: #374151;
}

.skill-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    border-radius: 4px;
    transition: width 2s ease-in-out;
    width: 0%;
}

/* Hover Effects */
.hover-lift {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.dark .hover-lift:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Text Reveal Animation */
.text-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.text-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Button Hover Effects */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-primary::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;
}

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

/* Scroll Progress Indicator */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    z-index: 9999;
    background: transparent;
}

.scroll-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6, #ec4899);
    width: 0%;
    transition: width 0.3s ease;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .section-padding {
        padding: 3rem 0;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus Styles */
.focus-ring {
    transition: all 0.2s;
}

.focus-ring:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.5);
}

/* Loading States */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #3b82f6;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Enhanced Contact Form */
.form-field {
    position: relative;
}

.form-field label {
    position: absolute;
    left: 12px;
    top: 12px;
    transition: all 0.3s ease;
    pointer-events: none;
    color: #6b7280;
}

.form-field input:focus + label,
.form-field input:valid + label,
.form-field textarea:focus + label,
.form-field textarea:valid + label {
    top: -8px;
    left: 8px;
    font-size: 0.75rem;
    color: #3b82f6;
    background: white;
    padding: 0 4px;
}

.dark .form-field input:focus + label,
.dark .form-field input:valid + label,
.dark .form-field textarea:focus + label,
.dark .form-field textarea:valid + label {
    background: #374151;
}

/* Social Links Hover */
.social-link {
    position: relative;
    transition: all 0.3s ease;
}

.social-link:hover {
    transform: translateY(-3px);
}

.social-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: currentColor;
    transition: width 0.3s ease;
}

.social-link:hover::after {
    width: 100%;
}