/* ==========================================
   Whitespace Blog Styles
   ========================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: #0a0a0f;
    color: white;
    overflow-x: hidden;
}

/* Phosphene Background */
#phosphene-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* Utility Classes */
.crimson { font-family: 'Crimson Pro', serif; }
.inter { font-family: 'Inter', sans-serif; }

/* ==========================================
   Page Spacing for Fixed Header
   ========================================== */
body {
    padding-top: 166px; /* Header height (~146px) + clearance for blur */
}

@media (max-width: 768px) {
    body {
        padding-top: 130px;
    }
}

@media (max-width: 640px) {
    body {
        padding-top: 100px;
    }
}

@media (max-width: 480px) {
    body {
        padding-top: 85px;
    }
}

/* Legacy nav styles (hidden, using header.js now) */
.blog-nav {
    display: none;
}

/* ==========================================
   Blog Index Page
   ========================================== */
.blog-hero {
    position: relative;
    z-index: 10;
    padding: 96px 24px 64px;
    text-align: center;
}

.blog-hero h1 {
    font-family: 'Crimson Pro', serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 16px;
}

.blog-hero .subtitle {
    font-family: 'Inter', sans-serif;
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: rgba(255, 255, 255, 0.5);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Blog Post Grid */
.blog-grid {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
    padding: 48px 24px 96px;
}

@media (min-width: 768px) {
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Blog Card */
.blog-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    text-decoration: none;
    display: block;
}

.blog-card:hover {
    transform: scale(1.02);
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(107, 140, 255, 0.1);
}

.blog-card-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.blog-card-content {
    padding: 24px;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 12px;
}

.blog-card-meta .divider {
    color: rgba(255, 255, 255, 0.2);
}

.blog-card h2 {
    font-family: 'Crimson Pro', serif;
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 12px;
    line-height: 1.3;
}

.blog-card-excerpt {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.6;
    margin-bottom: 16px;
}

.blog-card-link {
    font-family: 'Crimson Pro', serif;
    font-size: 15px;
    color: rgba(107, 140, 255, 0.8);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.3s ease;
}

.blog-card:hover .blog-card-link {
    color: rgba(107, 140, 255, 1);
}

/* ==========================================
   Blog Post Article
   ========================================== */
.blog-post {
    position: relative;
    z-index: 10;
    max-width: 800px;
    margin: 0 auto;
    padding: 48px 24px 96px;
}

/* Post Header */
.post-header {
    text-align: center;
    margin-bottom: 48px;
}

.post-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 24px;
}

.post-divider {
    color: rgba(255, 255, 255, 0.2);
}

.post-title {
    font-family: 'Crimson Pro', serif;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.2;
    margin-bottom: 24px;
}

.post-subtitle {
    font-family: 'Inter', sans-serif;
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
    max-width: 640px;
    margin: 0 auto;
}

/* Featured Image */
.post-featured-image {
    margin-bottom: 48px;
    border-radius: 16px;
    overflow: hidden;
}

.post-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Post Content */
.post-content {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
}

.post-content p {
    margin-bottom: 24px;
}

.post-content h2 {
    font-family: 'Crimson Pro', serif;
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.95);
    margin-top: 64px;
    margin-bottom: 24px;
}

.post-content h3 {
    font-family: 'Crimson Pro', serif;
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 48px;
    margin-bottom: 16px;
}

.post-content ul,
.post-content ol {
    margin-bottom: 24px;
    padding-left: 24px;
}

.post-content li {
    margin-bottom: 12px;
    color: rgba(255, 255, 255, 0.8);
}

.post-content li strong {
    color: rgba(255, 255, 255, 0.95);
}

.post-content em {
    color: rgba(255, 255, 255, 0.9);
    font-style: italic;
}

.post-content a {
    color: rgba(107, 140, 255, 0.8);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
}

.post-content a:hover {
    color: rgba(107, 140, 255, 1);
    border-bottom-color: rgba(107, 140, 255, 0.5);
}

/* Citation Links */
.citation-link {
    color: rgba(107, 140, 255, 0.7);
    text-decoration: none;
    font-size: 0.85em;
}

.citation-link:hover {
    color: rgba(107, 140, 255, 1);
}

/* Pull Quote */
.pull-quote {
    margin: 48px 0;
    padding: 32px 48px;
    background: rgba(255, 255, 255, 0.03);
    border-left: 3px solid rgba(107, 140, 255, 0.5);
    border-radius: 8px;
}

.pull-quote p {
    font-family: 'Crimson Pro', serif;
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

.pull-quote cite {
    display: block;
    margin-top: 16px;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    font-style: normal;
}

/* Post Footer */
.post-footer {
    margin-top: 96px;
}

/* CTA Box */
.post-cta {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 48px 32px;
    text-align: center;
}

.post-cta h3 {
    font-family: 'Crimson Pro', serif;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 16px;
}

.post-cta p {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 24px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    padding: 16px 32px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    color: white;
    font-family: 'Crimson Pro', serif;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.02);
    border-color: rgba(255, 255, 255, 0.3);
}

/* References Section */
.references {
    margin-top: 96px;
    padding-top: 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.references h4 {
    font-family: 'Crimson Pro', serif;
    font-size: 1.5rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
}

.reference-list {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.5);
    padding-left: 24px;
}

.reference-list li {
    margin-bottom: 16px;
}

.reference-list a {
    color: rgba(107, 140, 255, 0.8);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.2s ease;
}

.reference-list a:hover {
    color: rgba(107, 140, 255, 1);
    border-bottom-color: rgba(107, 140, 255, 0.5);
}

/* Related Posts Section */
.related-posts {
    margin-top: 72px;
    padding-top: 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.related-posts h4 {
    font-family: 'Crimson Pro', serif;
    font-size: 1.5rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 8px;
}

.related-posts-subtitle {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 24px;
}

.related-posts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 640px) {
    .related-posts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.related-post-card {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.related-post-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.related-post-image {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}

.related-post-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
}

.related-post-title {
    font-family: 'Crimson Pro', serif;
    font-size: 1rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 4px;
    line-height: 1.3;
}

.related-post-meta {
    font-family: 'Inter', sans-serif;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
}

/* ==========================================
   Site Footer
   ========================================== */
.site-footer {
    position: relative;
    z-index: 10;
    padding: 48px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

@media (min-width: 768px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 32px;
}

.footer-logo {
    width: 96px;
    height: auto;
    opacity: 0.6;
}

.footer-copyright {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-link {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: rgba(255, 255, 255, 0.7);
}

/* ==========================================
   Animations
   ========================================== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }
.fade-up-delay-5 { transition-delay: 0.5s; }
.fade-up-delay-6 { transition-delay: 0.6s; }
.fade-up-delay-7 { transition-delay: 0.7s; }
.fade-up-delay-8 { transition-delay: 0.8s; }
.fade-up-delay-9 { transition-delay: 0.9s; }
.fade-up-delay-10 { transition-delay: 1.0s; }
.fade-up-delay-11 { transition-delay: 1.1s; }
.fade-up-delay-12 { transition-delay: 1.2s; }

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

/* ==========================================
   Blog Header with Search
   ========================================== */
.blog-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.4);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.blog-header-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.blog-header .nav-logo img {
    width: 110px;
    height: auto;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.blog-header .nav-logo:hover img {
    opacity: 1;
}

/* Header Right - Nav Link + Search */
.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-right .nav-link {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color 0.2s ease;
}

.header-right .nav-link:hover {
    color: rgba(255, 255, 255, 0.9);
}

/* Header Search */
.header-search {
    position: relative;
}

.search-toggle {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.search-toggle:hover {
    background: rgba(107, 140, 255, 0.15);
    border-color: rgba(107, 140, 255, 0.3);
    color: rgba(255, 255, 255, 0.9);
}

.header-search.open .search-toggle {
    background: rgba(107, 140, 255, 0.2);
    border-color: rgba(107, 140, 255, 0.4);
    color: white;
}

.search-toggle svg {
    width: 18px;
    height: 18px;
}

/* Search Dropdown */
.search-dropdown {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    width: 420px;
    background: rgba(12, 12, 18, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transition: all 0.2s ease;
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset;
    overflow: hidden;
}

.header-search.open .search-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* Search Input */
.search-dropdown-header {
    padding: 16px 16px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input-icon {
    position: absolute;
    left: 12px;
    width: 18px;
    height: 18px;
    color: rgba(255, 255, 255, 0.35);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: 12px 40px 12px 42px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    color: white;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    outline: none;
    transition: all 0.2s ease;
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.35);
}

.search-input:focus {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(107, 140, 255, 0.4);
}

.search-clear {
    position: absolute;
    right: 8px;
    width: 26px;
    height: 26px;
    border: none;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    opacity: 0;
    pointer-events: none;
}

.search-clear:hover {
    background: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.9);
}

.search-clear svg {
    width: 14px;
    height: 14px;
}

/* Search Dropdown Body */
.search-dropdown-body {
    padding: 12px 16px 16px;
    max-height: 60vh;
    overflow-y: auto;
}

.search-dropdown-body::-webkit-scrollbar {
    width: 6px;
}

.search-dropdown-body::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 3px;
}

.search-dropdown-body::-webkit-scrollbar-thumb {
    background: rgba(107, 140, 255, 0.25);
    border-radius: 3px;
}

/* Topics Section */
.topics-section {
    margin-bottom: 16px;
}

.topics-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 10px;
}

.topics-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.topic-tag {
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: all 0.15s ease;
}

.topic-tag:hover {
    background: rgba(107, 140, 255, 0.12);
    border-color: rgba(107, 140, 255, 0.25);
    color: rgba(255, 255, 255, 0.95);
}

.topic-tag.active {
    background: rgba(107, 140, 255, 0.25);
    border-color: rgba(107, 140, 255, 0.5);
    color: white;
}

/* Results Section */
.results-section {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 12px;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.results-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.4);
}

.results-count {
    font-size: 11px;
    font-weight: 500;
    color: rgba(107, 140, 255, 0.8);
}

.results-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.result-item {
    display: block;
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid transparent;
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.15s ease;
}

.result-item:hover {
    background: rgba(107, 140, 255, 0.1);
    border-color: rgba(107, 140, 255, 0.2);
}

.result-item-title {
    font-family: 'Crimson Pro', serif;
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 4px;
    line-height: 1.35;
}

.result-item-meta {
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.4);
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.result-item-meta .meta-dot {
    color: rgba(255, 255, 255, 0.2);
}

.result-item-tag {
    color: rgba(107, 140, 255, 0.7);
}

.no-results {
    text-align: center;
    padding: 28px 16px;
    color: rgba(255, 255, 255, 0.4);
}

.no-results-icon {
    font-size: 32px;
    margin-bottom: 10px;
    opacity: 0.5;
}

.no-results-text {
    font-size: 13px;
}

/* Highlighted text in search results */
.highlight {
    background: rgba(107, 140, 255, 0.3);
    color: white;
    padding: 1px 3px;
    border-radius: 3px;
}

/* ==========================================
   Responsive Adjustments
   ========================================== */
@media (max-width: 768px) {
    .blog-header-content {
        padding: 14px 20px;
    }
    
    .blog-header .nav-logo img {
        width: 95px;
    }
    
    .header-right {
        gap: 14px;
    }
    
    .header-right .nav-link {
        font-size: 14px;
    }
    
    .search-dropdown {
        position: fixed;
        top: 65px;
        left: 12px;
        right: 12px;
        width: auto;
        max-height: calc(100vh - 85px);
    }
}

@media (max-width: 480px) {
    .blog-header-content {
        padding: 12px 16px;
    }
    
    .blog-header .nav-logo img {
        width: 85px;
    }
    
    .header-right {
        gap: 10px;
    }
    
    .header-right .nav-link {
        font-size: 13px;
    }
    
    .search-toggle {
        width: 36px;
        height: 36px;
    }
    
    .search-toggle svg {
        width: 16px;
        height: 16px;
    }
    
    .search-dropdown {
        top: 58px;
        left: 8px;
        right: 8px;
    }
    
    .search-dropdown-header {
        padding: 12px 12px 10px;
    }
    
    .search-dropdown-body {
        padding: 10px 12px 14px;
    }
    
    .search-input {
        padding: 10px 36px 10px 38px;
        font-size: 13px;
    }
    
    .topics-grid {
        gap: 5px;
    }
    
    .topic-tag {
        padding: 5px 10px;
        font-size: 10px;
    }
    
    .result-item {
        padding: 10px 12px;
    }
    
    .result-item-title {
        font-size: 13px;
    }
}

@media (max-width: 640px) {
    .blog-nav {
        padding: 20px 16px;
    }
    
    .nav-logo img {
        width: 100px;
    }
    
    .post-header {
        text-align: left;
    }
    
    .post-meta {
        justify-content: flex-start;
    }
    
    .pull-quote {
        padding: 24px;
        margin: 32px 0;
    }
    
    .post-cta {
        padding: 32px 24px;
    }
}