/* --- Global Styles & Variables --- */
:root {
    --primary-bg: #ffffff;
    --secondary-bg: #f6f8fa;
    --primary-accent: #635bff; /* Stripe-inspired blue-violet */
    --accent-light: #e7e9fc;
    --text-primary: #1a1a1a;
    --text-secondary: #4b5563;
    --border-color: #e5e7eb;
    --success: #2ecc40;
    --danger: #ff4136;
    --info: #3b82f6;
}

body {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

main {
    flex-grow: 1;
}

h1, h2, h3, h4, h5, h6 {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

a {
    color: var(--primary-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--text-primary);
}

.btn-primary {
    background-color: var(--primary-accent);
    border: 1px solid var(--primary-accent);
    color: white;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-primary:hover {
    background-color: #4338ca;
    border-color: #4338ca;
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 91, 255, 0.25);
}

.btn-outline-primary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.2s ease;
}

.btn-outline-primary:hover {
    background-color: var(--secondary-bg);
    border-color: var(--primary-accent);
    color: var(--primary-accent);
    transform: translateY(-1px);
}

/* --- Navigation Bar --- */
.navbar {
    background-color: var(--primary-bg) !important;
    border-bottom: 1px solid var(--border-color);
    box-shadow: none;
    padding: 1rem 0;
}

.navbar-brand {
    color: var(--text-primary) !important;
    font-size: 1.25rem;
    font-weight: 600;
}

.navbar-logo {
    color: var(--primary-accent);
    transition: color 0.2s ease;
}

.navbar-logo:hover {
    color: var(--text-primary);
}

.nav-link {
    color: var(--text-secondary) !important;
    margin: 0 0.5rem;
    padding: 0.5rem 1rem !important;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.2s ease;
}

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

/* --- General Section Styling --- */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 3rem;
    font-weight: 600;
    text-align: center;
}

/* --- Hero Section --- */
#hero {
    padding: 6rem 0 4rem 0;
    background-color: var(--primary-bg);
}

#hero .lead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* --- About Section --- */
#about {
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.profile-img {
    border: 3px solid var(--border-color);
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    object-fit: cover;
}

.about-title {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.about-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 1.5rem;
}

.contact-container {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}

.contact-links .contact-icon {
    display: inline-block;
    margin-right: 1.5rem;
}

.contact-links .contact-icon img {
    width: 32px;
    height: 32px;
    filter: grayscale(100%) invert(75%);
    transition: filter 0.3s ease, transform 0.3s ease;
}

.contact-links .contact-icon:hover img {
    filter: grayscale(0%) invert(0%);
    transform: scale(1.1);
}

/* --- Experience Section --- */
.experience-block {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--primary-bg);
    padding: 2rem 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.experience-header {
    margin-bottom: 1.5rem;
}

.experience-title {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
    font-weight: 600;
}

.experience-company-date {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    margin-bottom: 0;
}

.experience-details {
    padding-left: 20px;
    list-style-type: disc;
    color: var(--text-primary);
}

.experience-details li {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    line-height: 1.6;
}

/* --- Skills Section --- */
.skill-card {
    background-color: var(--primary-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    height: 100%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.skill-category {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

/* --- Cards (Projects, Blog) --- */
.card {
    background-color: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    border-color: var(--primary-accent);
}

.card-title {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

.card-text, .card-body, .card-body p, .card-body ul, .card-body li {
    color: var(--text-secondary) !important;
    font-size: 0.875rem;
    line-height: 1.6;
}

.card-body {
    padding: 1.5rem;
}

.card-img-left {
    border-radius: 12px 0 0 12px;
}

/* --- Achievements Section --- */
.achievement-list {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--primary-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.achievement-list ul {
    list-style: none;
    padding: 0;
}

.achievement-list li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.achievement-list li:last-child {
    border-bottom: none;
}

/* --- Footer --- */
footer {
    background-color: var(--primary-bg);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 2rem 0;
    margin-top: 4rem;
    font-size: 0.875rem;
}

/* --- Blog List Specific Styles --- */
#blog-list .card {
    margin-bottom: 2rem;
}

#blog-list .card-title {
    font-size: 1.25rem;
    line-height: 1.4;
}

#blog-list .card footer {
    font-size: 0.875rem;
    color: var(--text-secondary);
    border: none;
    background: none;
    padding: 0;
    margin: 0;
}

/* --- Pagination --- */
.pagination .page-link {
    color: var(--text-secondary);
    background-color: var(--primary-bg);
    border: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
}

.pagination .page-link:hover {
    color: var(--text-primary);
    background-color: var(--secondary-bg);
    border-color: var(--border-color);
}

.pagination .page-item.active .page-link {
    background-color: var(--primary-accent);
    border-color: var(--primary-accent);
    color: white;
}

.pagination .page-item.disabled .page-link {
    color: var(--border-color);
    background-color: var(--primary-bg);
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    body {
        font-size: 14px;
    }
    
    section {
        padding: 3rem 0;
    }
    
    #hero {
        padding: 4rem 0 3rem 0;
    }
    
    .about-title {
        font-size: 2rem;
    }
    
    .about-subtitle {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    h1 { font-size: 1.875rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    
    .experience-block {
        padding: 1.5rem;
        margin: 0 1rem;
    }
    
    .skill-card {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .achievement-list {
        margin: 0 1rem;
        padding: 1.5rem;
    }
    
    .contact-container {
        justify-content: center;
    }
    
    .contact-container .btn {
        margin-top: 1rem;
        margin-left: 0 !important;
    }
    
    .card-body {
        padding: 1.25rem;
    }
    
    #blog-list .card {
        flex-direction: column;
    }
    
    .card-img-left {
        border-radius: 12px 12px 0 0;
        width: 100% !important;
        height: 200px;
    }
    
    .navbar .container {
        padding: 0 1rem;
    }
}

/* --- Additional Utility Classes --- */
.text-muted {
    color: var(--text-secondary) !important;
}

.hover-shadow:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12) !important;
}

.lead {
    font-size: 1.125rem;
    font-weight: 400;
}

/* --- Updated Contact Icons --- */
.contact-links .contact-icon img {
    width: 24px;
    height: 24px;
    opacity: 0.6;
    transition: opacity 0.2s ease, transform 0.2s ease;
    filter: none;
}

.contact-links .contact-icon:hover img {
    opacity: 1;
    transform: scale(1.1);
    filter: none;
}

/* --- Article Styles --- */
.prose {
    font-size: 1.125rem;
    line-height: 1.75;
    color: var(--text-primary);
    font-family: Georgia, 'Times New Roman', Times, serif;
}

.prose p {
    margin-bottom: 1.75rem;
    color: var(--text-primary);
    font-weight: 400;
    letter-spacing: 0.01em;
}

.prose h2, .prose h3, .prose h4 {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.prose h2 {
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.prose h3 {
    font-size: 1.25rem;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.prose ul, .prose ol {
    margin-bottom: 1.75rem;
    padding-left: 1.5rem;
}

.prose li {
    color: var(--text-primary);
    line-height: 1.7;
    margin-bottom: 0.5rem;
}

.prose em {
    font-style: italic;
    color: var(--text-primary);
}

.prose strong {
    font-weight: 600;
    color: var(--text-primary);
}

/* Better quote styling */
.prose blockquote {
    border-left: 4px solid var(--primary-accent);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--text-secondary);
}

/* Code styling */
.prose code {
    background-color: var(--secondary-bg);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875em;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.prose pre {
    background-color: var(--secondary-bg);
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 2rem 0;
}

.prose pre code {
    background: none;
    padding: 0;
}

.display-5 {
    font-weight: 700;
    line-height: 1.2;
}

/* --- Breadcrumb --- */
.breadcrumb {
    background: none;
    padding: 0;
    margin: 0;
    font-size: 0.875rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "→";
    color: var(--text-secondary);
}

.breadcrumb-item a {
    color: var(--text-secondary);
    text-decoration: none;
}

.breadcrumb-item a:hover {
    color: var(--primary-accent);
}

.breadcrumb-item.active {
    color: var(--text-primary);
}

/* --- Badge --- */
.badge.bg-light {
    background-color: var(--secondary-bg) !important;
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    border: 1px solid var(--border-color);
}

/* --- Navbar Toggler for Light Theme --- */
.navbar-toggler {
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(99, 91, 255, 0.25);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2826, 26, 26, 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* --- Article Image Styles --- */
.img-fluid.rounded-3 {
    border-radius: 12px !important;
}

/* --- Enhanced Shadow --- */
.shadow-sm {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08) !important;
}