/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light theme colors - Updated to match previous design */
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --secondary-color: #6c757d;
    --accent-color: #17a2b8;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #9ca3af;
    --border-color: #dee2e6;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-strong: rgba(0, 0, 0, 0.25);
    
    --navbar-bg: rgba(255, 255, 255, 0.95);
    --card-bg: #ffffff;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: all 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-tagline {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 600;
    font-style: italic;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    position: relative;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Navigation */
.navbar {
    background: var(--navbar-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color) !important;
}

.nav-link {
    font-weight: 500;
    color: var(--text-primary) !important;
    padding: 0.5rem 1rem !important;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
    background-color: var(--bg-tertiary);
}

.theme-toggle, .language-toggle {
    border: 2px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    border-radius: 0.5rem;
    padding: 0.4rem 0.8rem;
    transition: all 0.3s ease;
}

.theme-toggle:hover, .language-toggle:hover {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
}

/* Hero Section */

.hero-section {
    padding-top: 100px; 
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

.hero-image {
    position: relative;
    animation: fadeInRight 1s ease-out 0.3s both;
}

.profile-image {
    width: 350px;
    height: 350px;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: 0 20px 40px var(--shadow-medium);
    transition: transform 0.3s ease;
}

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

.image-bg-shapes::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    opacity: 0.1;
    z-index: -1;
}

.hero-buttons .btn {
    padding: 0.75rem 2rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0.75rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px var(--shadow-light);
}

.hero-buttons .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px var(--shadow-medium);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-btn {
    display: inline-block;
    padding: 1rem;
    color: var(--text-muted);
    text-decoration: none;
    animation: bounce 2s infinite;
    font-size: 1.5rem;
}

.scroll-btn:hover {
    color: var(--primary-color);
}

/* Sections */
.section-padding {
    padding: 5rem 0;
}

.section-header {
    margin-bottom: 4rem;
}

.bg-light {
    background-color: var(--bg-secondary) !important;
}

/* About Section */
.about-content h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    line-height: 1.7;
}

.education-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px var(--shadow-light);
    border: 1px solid var(--border-color);
}

.education-item h5 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Skills */
.skills-grid {
    display: grid;
    gap: 2rem;
}

.skill-category {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px var(--shadow-light);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
}

.skill-category h5 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 0.4rem 0.8rem;
    border-radius: 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.skill-tag:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Social Cards */
.social-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--card-bg);
    padding: 1.25rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px var(--shadow-light);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px var(--shadow-medium);
}

.social-card i {
    font-size: 1.8rem;
    color: var(--primary-color);
    width: 40px;
    text-align: center;
}

.social-card h6 {
    margin: 0;
    color: var(--text-primary);
    font-weight: 600;
}

.social-card a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
}

.social-card a:hover {
    color: var(--primary-color);
}

/* Projects Section */
.project-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 1.5rem;
    box-shadow: 0 8px 25px var(--shadow-light);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px var(--shadow-medium);
}

.project-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.project-icon i {
    font-size: 1.8rem;
    color: white;
}

.project-card h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.project-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.project-link:hover {
    color: var(--primary-hover);
    transform: translateX(5px);
}

/* Contact Footer Section */
.contact-footer {
    background: #1e293b;
    color: white;
    padding: 120px 0;
    position: relative;
}

.contact-footer .section-title {
    color: white;
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 60px;
}

.contact-description {
    font-size: 1.5rem;
    color: #cbd5e1;
    margin-bottom: 60px;
    line-height: 1.6;
}

.social-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    border-radius: 50%;
    font-size: 2rem;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.social-icons a:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
}

/* Hugging Face logo specific styling */
.hf-logo-icon {
    width: 32px;
    height: 32px;
    filter: brightness(0) invert(1);
    transition: all 0.3s ease;
}

.social-icons a:hover .hf-logo-icon {
    filter: brightness(0) invert(1);
    transform: scale(1.1);
}

/* Footer */
.footer {
    background: #0f172a;
    color: #cbd5e1;
    padding: 30px 0;
    border-top: none;
}

.footer p {
    color: #cbd5e1;
    margin: 0;
    font-weight: 400;
}

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

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-10px) translateX(-50%);
    }
    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* Responsive Design */
@media (max-width: 991px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .profile-image {
        width: 280px;
        height: 280px;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 767px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .profile-image {
        width: 250px;
        height: 250px;
    }
    
    .section-padding {
        padding: 3rem 0;
    }
    
    .hero-buttons .btn {
        padding: 0.6rem 1.5rem;
        margin-bottom: 0.5rem;
    }
    
    .contact-card {
        flex-direction: column;
        text-align: center;
        margin-bottom: 1rem;
    }
    
    .contact-footer {
        padding: 80px 0;
    }
    
    .contact-footer .section-title {
        font-size: 2.5rem;
        margin-bottom: 40px;
    }
    
    .contact-description {
        font-size: 1.2rem;
        margin-bottom: 40px;
    }
    
    .social-icons {
        gap: 20px;
    }
    
    .social-icons a {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Focus states for accessibility */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

button:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}