/* ES Klarheit Grotesk Mono Font */
@font-face {
    font-family: 'ES Klarheit Grotesk Mono';
    src: url('/public/font/ESKlarheitGroteskMono-Rg.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
}

@font-face {
    font-family: 'ES Klarheit Grotesk Mono';
    src: url('/public/font/ESKlarheitGroteskMono-It-Trial.otf') format('opentype');
    font-weight: 400;
    font-style: italic;
}

:root {
    --bg: #d8d6c5;
    --bg-dark: #d8d6c5;
    --orange: #D96A32;
    --black: #1a1a1a;
    --text: #1a1a1a;
    --text-dim: #4a4a4a;
    --text-muted: #7a7a7a;
    --border: #1a1a1a;
    --border-width: 1px;
    --transition: 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    --font-mono: 'ES Klarheit Grotesk Mono', 'IBM Plex Mono', monospace;
    --font-sans: 'IBM Plex Sans', sans-serif;
}

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

html {
    font-size: 16px;
}

body {
    font-family: var(--font-mono);
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-sans);
    font-weight: 400;
    letter-spacing: -0.02em;
    color: var(--text);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text);
}

a {
    color: inherit;
    text-decoration: none;
}

/* ========================================
   HEADER STYLES (FROM MAIN WEBSITE)
   ======================================== */

.header {
    display: flex; 
    justify-content: space-between; 
    align-items: center;
    padding: 1.25rem 3rem; 
    border-bottom: var(--border-width) solid var(--black);
    flex-shrink: 0; 
    background: var(--bg); 
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 800;
}

.logo-btn { 
    background: none; 
    border: none; 
    cursor: pointer; 
    padding: 0; 
    transition: opacity 0.3s ease;
}

.logo-btn:hover { 
    opacity: 0.7; 
}

.logo-img { 
    height: 42px; 
    width: auto; 
}

.header-right { 
    display: flex; 
    align-items: center; 
    gap: 2rem; 
}

.menu-toggle {
    background: none; 
    border: none; 
    cursor: pointer; 
    display: flex; 
    align-items: center; 
    gap: 0.75rem;
    transition: all 0.3s ease;
}

.menu-toggle:hover .menu-text { 
    color: var(--orange); 
}

.menu-text { 
    font-family: var(--font-mono); 
    font-size: 0.65rem; 
    text-transform: uppercase; 
    letter-spacing: 0.1em; 
    color: var(--text);
    transition: color 0.3s ease;
}

.menu-icon {
    display: flex; 
    flex-direction: column; 
    gap: 2px;
}

.menu-icon span {
    width: 18px; 
    height: 1px; 
    background: var(--black);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), width 0.3s ease;
    transform-origin: right;
}

.menu-toggle:hover .menu-icon span:first-child { 
    transform: translateY(1px);
    width: 70%;
}

.menu-toggle:hover .menu-icon span:last-child { 
    transform: translateY(-1px);
}

/* Nav Overlay */
.nav-overlay {
    position: fixed; 
    top: 4rem; 
    right: 2rem; 
    background: var(--bg);
    border: var(--border-width) solid var(--black); 
    padding: 1rem 0; 
    z-index: 900;
    opacity: 0; 
    visibility: hidden; 
    transform: translateY(-10px); 
    transition: all 0.3s ease; 
    min-width: 200px;
}

.nav-overlay.active { 
    opacity: 1; 
    visibility: visible; 
    transform: translateY(0); 
}

.overlay-menu {
    display: flex;
    flex-direction: column;
}

.overlay-link {
    display: block; 
    width: 100%; 
    text-align: left; 
    background: none; 
    border: none;
    padding: 0.75rem 1.5rem; 
    font-family: var(--font-sans); 
    font-size: 1rem;
    color: var(--text); 
    cursor: pointer; 
    text-decoration: none;
    transition: background 0.3s ease, padding-left 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

.overlay-link:hover { 
    background: var(--black); 
    color: var(--bg); 
    padding-left: 2rem;
}

.overlay-link:hover .overlay-num { 
    color: var(--orange); 
}

.overlay-num { 
    font-family: var(--font-mono); 
    font-size: 0.7rem; 
    color: var(--orange); 
    margin-right: 0.5rem; 
    transition: color 0.2s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: inline-block;
}

.overlay-link:hover .overlay-num {
    transform: translateX(-3px);
}

.overlay-divider { 
    height: 1px; 
    background: var(--black); 
    margin: 0.5rem 1.5rem; 
    opacity: 0.2; 
}

.overlay-link-secondary { 
    font-size: 0.85rem; 
    color: var(--text-muted); 
    text-decoration: none;
}

.overlay-link-secondary:hover { 
    color: var(--bg); 
}

/* ========================================
   BLOG CONTENT AREAS
   ======================================== */

.blog-main {
    padding-top: 6rem;
    min-height: 100vh;
}

.blog-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 3rem;
}

/* Hero Section */
.blog-hero {
    padding: 4rem 0;
    border-bottom: 1px solid var(--border);
}

.hero-content {
    max-width: 700px;
}

.hero-number {
    display: block;
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.blog-hero-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 400;
    color: var(--text);
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.blog-hero-title .accent {
    font-style: italic;
    color: #8B7355;
}

.blog-hero-desc {
    font-size: 1rem;
    color: var(--text-dim);
    line-height: 1.7;
    max-width: 500px;
}

/* Category Section */
.category-section {
    padding: 2.5rem 0;
    border-bottom: 1px solid var(--border);
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.category-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.25rem;
    color: var(--text);
    letter-spacing: -0.01em;
}

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

.filter-btn {
    background: none;
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    font-size: 0.65rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all var(--transition);
    font-family: var(--font-mono);
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--bg);
    border-color: var(--black);
    background: var(--black);
}

/* Featured Section */
.featured-section {
    padding: 4rem 0;
    border-bottom: 1px solid var(--border);
}

.featured-post {
    display: block;
}

.featured-content {
    max-width: 800px;
}

.featured-content.featured-full-width {
    max-width: 100%;
}

.featured-tag {
    display: inline-block;
    font-size: 0.6rem;
    color: var(--orange);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
}

.featured-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 400;
    color: var(--text);
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 1rem;
    text-decoration: none;
    display: block;
    transition: color var(--transition);
}

.featured-title:hover {
    color: var(--orange);
}

.featured-excerpt {
    font-size: 0.95rem;
    color: var(--text-dim);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.featured-meta {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.featured-image img {
    width: 100%;
    height: auto;
    border-radius: 2px;
    border: 1px solid var(--border);
}

/* ========================================
   BLOG GRID AND CARDS
   ======================================== */

.blog-grid-section {
    padding: 3rem 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
}

.blog-card {
    background: var(--bg);
    padding: 2rem;
    transition: all var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--orange);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform var(--transition);
}

.blog-card:hover::before {
    transform: scaleY(1);
    transform-origin: top;
}

.blog-card:hover {
    background: var(--black);
}

.blog-card:hover .blog-title,
.blog-card:hover .blog-excerpt {
    color: var(--bg);
}

.blog-card:hover .blog-meta,
.blog-card:hover .blog-category {
    color: var(--text-muted);
}

.blog-category {
    font-size: 0.6rem;
    color: var(--orange);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.75rem;
    transition: color var(--transition);
}

.blog-title {
    font-family: var(--font-sans);
    font-size: 1.15rem;
    font-weight: 400;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 0.75rem;
    line-height: 1.3;
    transition: color var(--transition);
}

.blog-excerpt {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    line-height: 1.5;
    margin-bottom: 1.25rem;
    transition: color var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-meta {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color var(--transition);
}

/* Load More */
.load-more-container {
    text-align: center;
    padding: 3rem 0;
}

.load-more-btn {
    background: none;
    border: 1px solid var(--border);
    padding: 1rem 2.5rem;
    font-size: 0.7rem;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    cursor: pointer;
    transition: all var(--transition);
    font-family: var(--font-mono);
}

.load-more-btn:hover {
    color: var(--bg);
    background: var(--black);
}

.load-more-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ========================================
   FOOTER
   ======================================== */

.blog-footer {
    border-top: var(--border-width) solid var(--border);
    padding: 3rem;
    margin-top: 4rem;
    background: var(--bg);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Footer Rows */
.footer-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Footer Top Row */
.footer-top {
    padding-bottom: 2rem;
    border-bottom: var(--border-width) solid var(--border);
    margin-bottom: 2rem;
}

.footer-logo {
    display: block;
}

.footer-logo-img {
    height: 28px;
    width: auto;
}

/* Primary Navigation - Three Categories */
.footer-primary-nav {
    display: flex;
    gap: 0;
}

.footer-nav-item {
    padding: 0 2rem;
    border-left: var(--border-width) solid var(--border);
}

.footer-nav-item:first-child {
    padding-left: 0;
    border-left: none;
}

.footer-nav-link-main {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: var(--text);
    transition: opacity var(--transition);
}

.footer-nav-link-main:hover {
    opacity: 0.7;
}

.footer-nav-prefix {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.footer-nav-title {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text);
    line-height: 1.2;
}

/* Footer Bottom Row */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Secondary Navigation */
.footer-secondary-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.footer-secondary-link {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: color var(--transition);
    padding: 0.25rem 0;
}

.footer-secondary-link:hover {
    color: var(--text);
}

.footer-secondary-link.active {
    color: var(--text);
    border: 1px solid var(--text);
    padding: 0.25rem 0.5rem;
}

/* Footer Right */
.footer-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-copyright {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin: 0;
}

.social-link {
    color: var(--text-muted);
    transition: color var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.social-link svg {
    width: 14px;
    height: 14px;
}

/* Legacy footer styles (kept for compatibility) */
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.footer-logo-img {
    height: 32px;
    width: auto;
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-link {
    font-size: 0.7rem;
    color: var(--text);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.5rem 1rem;
    border: var(--border-width) solid var(--border);
    transition: all var(--transition);
    font-family: var(--font-mono);
}

.footer-link:hover {
    background: var(--black);
    color: var(--bg);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
}

.footer-text {
    font-size: 0.6rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
    .header { 
        padding: 1rem 1.5rem; 
    }
    
    .blog-container {
        padding: 0 1.5rem;
    }
    
    .blog-hero-title {
        font-size: 2rem;
    }
    
    .category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    
    .category-filters {
        overflow-x: auto;
        padding-bottom: 0.5rem;
        width: 100%;
    }
    
    .featured-post {
        display: block;
    }
    
    .featured-content {
        max-width: 100%;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .blog-footer {
        padding: 2rem 1.5rem;
    }
    
    .footer-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    
    .footer-top {
        padding-bottom: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .footer-logo-img {
        height: 24px;
    }
    
    .footer-primary-nav {
        flex-direction: column;
        gap: 1rem;
        width: 100%;
    }
    
    .footer-nav-item {
        padding: 0;
        border-left: none;
        border-bottom: var(--border-width) solid var(--border);
        padding-bottom: 1rem;
    }
    
    .footer-nav-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    
    .footer-nav-title {
        font-size: 1.25rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
        width: 100%;
    }
    
    .footer-secondary-nav {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        gap: 1rem;
    }
    
    .footer-right {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        width: 100%;
    }
    
    .footer-copyright {
        font-size: 0.6rem;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */

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

.blog-card {
    animation: fadeInUp 0.5s ease forwards;
}

.blog-card:nth-child(2) { animation-delay: 0.05s; }
.blog-card:nth-child(3) { animation-delay: 0.1s; }
.blog-card:nth-child(4) { animation-delay: 0.15s; }
.blog-card:nth-child(5) { animation-delay: 0.2s; }
.blog-card:nth-child(6) { animation-delay: 0.25s; }

/* ========================================
   UTILITY CLASSES
   ======================================== */

.hidden {
    display: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}