/* Modern Homepage Styles with Enhanced Animations */

/* Animation Keyframes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    color: white;
    padding: 80px 0;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    overflow: hidden;
    will-change: transform, opacity;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255,255,255,0.1) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-size: 3.5em;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    animation: fadeInUp 0.8s ease-out 0.2s both;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.hero-subtitle {
    font-size: 1.5em;
    margin-bottom: 15px;
    opacity: 0.95;
    font-weight: 300;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-description {
    font-size: 1.1em;
    margin-bottom: 30px;
    opacity: 0.9;
    line-height: 1.6;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-links {
    margin-bottom: 30px;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-links .btn {
    padding: 12px 30px;
    font-size: 1em;
    border-radius: 5px;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: white;
    color: #667eea;
    border: 2px solid white;
}

.btn-primary:hover {
    background: transparent;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-outline:hover {
    background: white;
    color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.hero-meta {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 20px;
}

.hero-meta .meta-info {
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0.9;
}

.hero-meta .meta-info a {
    color: white;
    text-decoration: none;
}

.hero-meta .meta-info a:hover {
    text-decoration: underline;
}

/* Skills Section */
.skills-section {
    padding: 60px 0;
    background: #f8f9fa;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5em;
    text-align: center;
    margin-bottom: 50px;
    color: #333;
    font-weight: 600;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section-title.animate-in {
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 0.6s ease-out forwards;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.skill-category {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.skill-category.animate-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

.skill-category:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.2);
}

.skill-category h3 {
    font-size: 1.3em;
    margin-bottom: 20px;
    color: #667eea;
    font-weight: 600;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    display: inline-block;
}

.skill-tag:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 20px;
}

.view-all {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.view-all:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* Modern Card Styles */
.modern-card {
    background: white;
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 4px solid #667eea;
    opacity: 0;
    transform: translateY(20px);
}

.modern-card.animate-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

.modern-card:hover {
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.2);
    transform: translateY(-8px) translateX(5px);
    border-left-width: 6px;
}

.repo-list-item.modern-card .repo-list-name a {
    color: #333;
    text-decoration: none;
    font-size: 1.3em;
    font-weight: 600;
    transition: color 0.3s ease;
}

.repo-list-item.modern-card .repo-list-name a:hover {
    color: #667eea;
}

.repo-list-item.modern-card .repo-list-description {
    color: #666;
    line-height: 1.6;
    margin: 10px 0;
}

.repo-list-item.modern-card .repo-list-meta {
    margin-top: 15px;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
    margin-top: 60px;
}

.cta-section h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
    font-weight: 600;
}

.cta-section p {
    font-size: 1.2em;
    margin-bottom: 30px;
    opacity: 0.95;
}

.cta-section .btn-primary {
    background: white;
    color: #667eea;
    padding: 15px 40px;
    font-size: 1.1em;
    border-radius: 5px;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.cta-section .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5em;
    }
    
    .hero-subtitle {
        font-size: 1.2em;
    }
    
    .hero-links {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-links .btn {
        width: 100%;
        justify-content: center;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .section-title {
        font-size: 2em;
    }
    
    .cta-section h2 {
        font-size: 2em;
    }
}

/* Enhanced Pagination */
.pagination {
    margin-top: 40px;
}

.btn-group {
    display: flex;
    gap: 5px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-group .btn {
    padding: 10px 15px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.btn-group .btn.active {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.btn-group .btn:hover:not(.active):not([disabled]) {
    background: #f0f0f0;
    border-color: #667eea;
    color: #667eea;
    transform: translateY(-2px);
}

/* Scroll-based animations */
.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Header scroll effect */
.site-header {
    transition: all 0.3s ease;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
}

/* Smooth transitions for all interactive elements */
a, button {
    transition: all 0.3s ease;
}

/* Loading state */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}