/* Custom CSS for Portfolio Website */

/* Root Variables */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --font-family: 'Inter', sans-serif;
}

/* Global Styles */
body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--dark-color);
}

/* Navigation */
.navbar-brand {
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

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

/* Active nav styling */
.navbar-nav .nav-link.active {
    color: #fff !important;
    position: relative;
}

.navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    left: 0.8rem;
    right: 0.8rem;
    bottom: 0.4rem;
    height: 2px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
}

/* Offset for fixed navbar */
main { 
    padding-top: 70px; 
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-stats .stat-item {
    text-align: center;
}

.hero-stats .stat-item h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.tech-item {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.tech-item:hover {
    transform: translateY(-5px);
}

.tech-item p {
    margin-top: 1rem;
    font-weight: 500;
}

/* Profile Photo */
.profile-photo {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    border: 4px solid rgba(255, 255, 255, 0.6);
}

.profile-photo-xl {
    width: 340px;
    height: 340px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 12px 40px rgba(0,0,0,0.18);
}

.btn-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Section Styles */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 3rem;
}

/* Skills Section */
.skill-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e9ecef;
}

.chip {
    display: inline-block;
    padding: 0.65rem 1.25rem;
    border: 1px solid #dee2e6;
    border-radius: 999px;
    background: #fff;
    font-weight: 500;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.skill-card h5 {
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Project Cards */
.project-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e9ecef;
    overflow: hidden;
}

.project-card .project-header i { opacity: 0.9; }
.project-card .project-footer { font-size: 0.95rem; }

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.project-header {
    padding: 1.5rem 1.5rem 1rem;
    border-bottom: 1px solid #e9ecef;
}

.project-header h5 {
    font-weight: 600;
    margin: 1rem 0 0.5rem;
}

.project-body {
    padding: 1.5rem;
}

.project-tech .badge {
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

.project-footer {
    padding: 1rem 1.5rem;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
}

.project-actions .btn {
    margin-right: 0.5rem;
}

/* Projects Hero Section */
.projects-hero {
    background-color: var(--light-color);
    padding-top: 180px; /* Significantly increased padding for better spacing */
    padding-bottom: 40px;
}

/* About Section */
.about-hero {
    padding: 5rem 0;
}

.about-stats .stat-box {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.about-stats .stat-box h4 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.profile-placeholder {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 3rem;
    border: 2px dashed #dee2e6;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-marker {
    position: absolute;
    left: -1.5rem;
    top: 0.5rem;
    width: 1rem;
    height: 1rem;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 3px var(--primary-color);
}

.timeline-content {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    margin-left: 1rem;
}

.achievements ul li {
    margin-bottom: 0.5rem;
}

/* Skills & Technologies */
.skill-category {
    background: white;
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    height: 100%;
}

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

.skill-tag {
    background: var(--light-color);
    color: var(--dark-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid #dee2e6;
}

/* Approach Cards */
.approach-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    height: 100%;
}

.approach-card:hover {
    transform: translateY(-5px);
}

.approach-icon {
    color: var(--primary-color);
}

/* Contact Section */
.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-info {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    height: fit-content;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.contact-icon {
    margin-right: 1rem;
    margin-top: 0.25rem;
}

.contact-details h6 {
    margin-bottom: 0.5rem;
}

.social-links .social-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.social-links .social-link:hover {
    color: var(--dark-color);
}

/* Service Cards */
.service-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-icon {
    color: var(--primary-color);
}

/* CTA Sections */
.cta-section, .contact-cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Headings & typography refinement */
h1, h2, h3, h4, h5, h6 { letter-spacing: 0.2px; }
p { color: #495057; }

/* Utilities */
.shadow-soft { box-shadow: 0 10px 30px rgba(0,0,0,0.08) !important; }
.rounded-12 { border-radius: 12px !important; }

/* Project Filters */
.project-filters {
    margin-bottom: 3rem;
}

.project-filters .btn {
    margin: 0 0.5rem 0.5rem;
    border-radius: 25px;
    padding: 0.5rem 1.5rem;
}

.project-filters .btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Footer */
footer {
    margin-top: auto;
}

.social-links a {
    color: #6c757d;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .tech-stack {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .hero-stats .col-4 {
        margin-bottom: 1rem;
    }
    
    .timeline {
        padding-left: 1rem;
    }
    
    .timeline::before {
        left: 0.5rem;
    }
    
    .timeline-marker {
        left: -0.75rem;
    }
    
    .timeline-content {
        margin-left: 0.5rem;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin-bottom: 1rem;
    }
    
    .project-filters .btn {
        display: block;
        width: 100%;
        margin: 0 0 0.5rem;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Utility Classes */
.bg-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

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

/* Custom Button Styles */
.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
    border-radius: 50px;
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* Modal Customization */
.modal-content {
    border-radius: 15px;
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.modal-header {
    border-bottom: 1px solid #e9ecef;
    border-radius: 15px 15px 0 0;
}

.modal-footer {
    border-top: 1px solid #e9ecef;
    border-radius: 0 0 15px 15px;
}