/*
Theme Name: Nexus
Theme URI: https://alitheiastudio.com/nexus
Author: Alitheia Studio
Author URI: https://alitheiastudio.com
Description: Nexus is a bold, dark-minimal WordPress theme built for tech agencies, digital studios, and creative professionals.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.1
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: nexus
Tags: dark, minimal, agency, portfolio, technology, responsive, custom-colors, custom-logo, custom-menu, featured-images
*/

/* ── Self-hosted fonts (SIL OFL licence) ── */
@font-face { font-family:'Syne'; font-style:normal; font-weight:400; font-display:swap; src:url('fonts/syne-400.ttf') format('truetype'); }
@font-face { font-family:'Syne'; font-style:normal; font-weight:600; font-display:swap; src:url('fonts/syne-600.ttf') format('truetype'); }
@font-face { font-family:'Syne'; font-style:normal; font-weight:700; font-display:swap; src:url('fonts/syne-700.ttf') format('truetype'); }
@font-face { font-family:'Syne'; font-style:normal; font-weight:800; font-display:swap; src:url('fonts/syne-800.ttf') format('truetype'); }
@font-face { font-family:'DM Sans'; font-style:normal;  font-weight:300; font-display:swap; src:url('fonts/dm-sans-300.ttf') format('truetype'); }
@font-face { font-family:'DM Sans'; font-style:normal;  font-weight:400; font-display:swap; src:url('fonts/dm-sans-400.ttf') format('truetype'); }
@font-face { font-family:'DM Sans'; font-style:normal;  font-weight:500; font-display:swap; src:url('fonts/dm-sans-500.ttf') format('truetype'); }
@font-face { font-family:'DM Sans'; font-style:normal;  font-weight:600; font-display:swap; src:url('fonts/dm-sans-600.ttf') format('truetype'); }
@font-face { font-family:'DM Sans'; font-style:italic;  font-weight:400; font-display:swap; src:url('fonts/dm-sans-400-italic.ttf') format('truetype'); }
@font-face { font-family:'JetBrains Mono'; font-style:normal; font-weight:400; font-display:swap; src:url('fonts/jetbrains-mono-400.ttf') format('truetype'); }
@font-face { font-family:'JetBrains Mono'; font-style:normal; font-weight:500; font-display:swap; src:url('fonts/jetbrains-mono-500.ttf') format('truetype'); }

:root {
  --color-bg:          #0a0a0f;
  --color-bg-2:        #111118;
  --color-bg-3:        #16161f;
  --color-surface:     #1c1c28;
  --color-border:      rgba(255,255,255,0.07);
  --color-text:        #e8e8f0;
  --color-muted:       #7a7a9a;
  --color-accent:      #5b4eff;
  --color-accent-2:    #00e5ff;
  --color-accent-glow: rgba(91,78,255,0.25);
  --font-display:      'Syne', sans-serif;
  --font-body:         'DM Sans', sans-serif;
  --font-mono:         'JetBrains Mono', monospace;
  --radius:            8px;
  --radius-lg:         16px;
  --transition:        0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width:         1200px;
  --header-height:     72px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-2); }
ul { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
h1 { font-size: clamp(2.8rem, 6vw, 5.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
p  { color: var(--color-muted); margin-bottom: 1rem; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: 1rem;
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 2rem; }
.section { padding: 6rem 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.text-center { text-align: center; }
.text-gradient {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}
.btn-primary { background: var(--color-accent); color: #fff; box-shadow: 0 0 24px var(--color-accent-glow); }
.btn-primary:hover { background: #7165ff; color: #fff; transform: translateY(-2px); box-shadow: 0 0 40px var(--color-accent-glow); }
.btn-outline { background: transparent; color: var(--color-text); border: 1px solid var(--color-border); }
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent); transform: translateY(-2px); }
.btn-group { display: flex; gap: 1rem; flex-wrap: wrap; }

.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000; height: var(--header-height);
  display: flex; align-items: center;
  transition: all var(--transition);
}
.site-header.scrolled {
  background: rgba(10,10,15,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner { display: flex; align-items: center; width: 100%; gap: 2rem; }
.site-logo { font-family: var(--font-display); font-size: 1.5rem; font-weight: 800; color: var(--color-text); letter-spacing: -0.03em; }
.site-logo span { color: var(--color-accent); }
.site-logo:hover { color: var(--color-text); }
.main-nav { flex: 1; display: flex; justify-content: center; align-items: center; }
.main-nav ul { display: flex; gap: 2.5rem; }
.main-nav a { font-size: 0.9rem; font-weight: 500; color: var(--color-muted); transition: color var(--transition); position: relative; }
.main-nav a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 1px; background: var(--color-accent); transition: width var(--transition); }
.main-nav a:hover, .main-nav a.current-menu-item { color: var(--color-text); }
.main-nav a:hover::after { width: 100%; }
.header-cta { display: flex; align-items: center; gap: 1rem; padding-left: 2.5rem; }
.header-cta .btn { padding: 0.45rem 1.1rem; font-size: 0.83rem; line-height: 1.3; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; background: none; border: none; }
.menu-toggle span { display: block; width: 24px; height: 2px; background: var(--color-text); transition: all var(--transition); }

.hero { min-height: 100vh; display: flex; align-items: center; position: relative; overflow: hidden; padding-top: var(--header-height); }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg::before { content: ''; position: absolute; top: 20%; left: 50%; transform: translateX(-50%); width: 800px; height: 600px; background: radial-gradient(ellipse, rgba(91,78,255,0.15) 0%, transparent 70%); pointer-events: none; }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(var(--color-border) 1px, transparent 1px), linear-gradient(90deg, var(--color-border) 1px, transparent 1px); background-size: 60px 60px; mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%); }
.hero-content { position: relative; z-index: 1; max-width: 780px; }
.hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.4rem 1rem; background: rgba(91,78,255,0.12); border: 1px solid rgba(91,78,255,0.3); border-radius: 999px; font-family: var(--font-mono); font-size: 0.75rem; color: var(--color-accent); letter-spacing: 0.1em; margin-bottom: 2rem; }
.hero-badge::before { content: ''; width: 6px; height: 6px; background: var(--color-accent); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.5;transform:scale(1.5)} }
.hero h1 { margin-bottom: 1.5rem; }
.hero h1 em { font-style: normal; background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-desc { font-size: 1.15rem; color: var(--color-muted); max-width: 560px; margin-bottom: 2.5rem; line-height: 1.8; }
.hero-stats { display: flex; gap: 3rem; margin-top: 4rem; padding-top: 3rem; border-top: 1px solid var(--color-border); }
.stat-number { font-family: var(--font-display); font-size: 2rem; font-weight: 800; color: var(--color-text); line-height: 1; }
.stat-label { font-size: 0.8rem; color: var(--color-muted); margin-top: 0.25rem; }

.marquee-section { padding: 1.5rem 0; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); overflow: hidden; background: var(--color-bg-2); }
.marquee-track { display: flex; gap: 3rem; animation: marquee 25s linear infinite; width: max-content; }
.marquee-item { display: flex; align-items: center; gap: 1rem; font-family: var(--font-mono); font-size: 0.8rem; color: var(--color-muted); white-space: nowrap; letter-spacing: 0.1em; }
.marquee-item::before { content: '✦'; color: var(--color-accent); font-size: 0.6rem; }
@keyframes marquee { from{transform:translateX(0)}to{transform:translateX(-50%)} }

.services { background: var(--color-bg); }
.section-header { margin-bottom: 4rem; }
.section-header--split { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 1rem; }
.service-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 2.5rem; transition: all var(--transition); position: relative; overflow: hidden; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2)); transform: scaleX(0); transform-origin: left; transition: transform var(--transition); }
.service-card:hover { border-color: rgba(91,78,255,0.3); transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon { width: 48px; height: 48px; background: rgba(91,78,255,0.12); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; margin-bottom: 1.5rem; }
.service-card h3 { font-size: 1.15rem; margin-bottom: 0.75rem; }
.service-card p { font-size: 0.9rem; margin: 0; }

.about { background: var(--color-bg-2); }
.about-visual { position: relative; border-radius: var(--radius-lg); overflow: hidden; background: var(--color-surface); border: 1px solid var(--color-border); aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; }
.about-visual-inner { width: 100%; height: 100%; background: linear-gradient(135deg, rgba(91,78,255,0.1) 0%, transparent 50%), linear-gradient(225deg, rgba(0,229,255,0.08) 0%, transparent 50%); display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-size: 0.75rem; color: var(--color-muted); }
.feature-list { display: flex; flex-direction: column; gap: 1.5rem; margin: 2rem 0; }
.feature-item { display: flex; gap: 1rem; align-items: flex-start; }
.feature-check { width: 24px; height: 24px; background: rgba(91,78,255,0.15); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.7rem; color: var(--color-accent); flex-shrink: 0; margin-top: 2px; }
.feature-item h4 { font-size: 0.95rem; margin-bottom: 0.25rem; }
.feature-item p { font-size: 0.85rem; margin: 0; }

.work { background: var(--color-bg); }
.work-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.work-card { border-radius: var(--radius-lg); overflow: hidden; background: var(--color-surface); border: 1px solid var(--color-border); transition: all var(--transition); cursor: pointer; }
.work-card:hover { transform: translateY(-4px); box-shadow: 0 24px 48px rgba(0,0,0,0.4); border-color: rgba(91,78,255,0.3); }
.work-thumb { aspect-ratio: 16/10; background: linear-gradient(135deg, var(--color-bg-3), var(--color-surface)); display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
.work-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.work-card:hover .work-thumb img { transform: scale(1.05); }
.work-thumb-placeholder { font-family: var(--font-mono); font-size: 0.75rem; color: var(--color-muted); letter-spacing: 0.1em; }
.work-info { padding: 1.5rem; }
.work-info h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.work-tag { display: inline-block; padding: 0.2rem 0.7rem; background: rgba(91,78,255,0.1); border-radius: 999px; font-size: 0.72rem; font-family: var(--font-mono); color: var(--color-accent); }

.testimonials { background: var(--color-bg-2); }
.testimonial-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 2rem; position: relative; }
.testimonial-card::before { content: '"'; position: absolute; top: 1rem; right: 1.5rem; font-family: var(--font-display); font-size: 4rem; color: var(--color-accent); opacity: 0.2; line-height: 1; }
.testimonial-text { font-size: 0.95rem; color: var(--color-muted); margin-bottom: 1.5rem; font-style: italic; line-height: 1.8; }
.testimonial-author { display: flex; align-items: center; gap: 0.75rem; }
.author-avatar { width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2)); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.85rem; color: white; flex-shrink: 0; }
.author-name { font-weight: 600; font-size: 0.9rem; }
.author-role { font-size: 0.8rem; color: var(--color-muted); }

.cta-section { background: var(--color-bg-3); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); text-align: center; padding: 7rem 0; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 600px; height: 400px; background: radial-gradient(ellipse, rgba(91,78,255,0.12) 0%, transparent 70%); pointer-events: none; }
.cta-section h2, .cta-section p, .cta-section .btn-group { position: relative; }
.cta-section h2 { margin-bottom: 1rem; }
.cta-section p { font-size: 1.1rem; margin-bottom: 2.5rem; }
.cta-section .btn-group { justify-content: center; }

.contact { background: var(--color-bg); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 5rem; align-items: start; }
.contact-info h2 { margin-bottom: 1rem; }
.contact-info p { margin-bottom: 2rem; }
.contact-links { display: flex; flex-direction: column; gap: 1rem; }
.contact-link { display: flex; align-items: center; gap: 0.75rem; font-size: 0.9rem; color: var(--color-muted); transition: color var(--transition); }
.contact-link:hover { color: var(--color-text); }
.contact-link-icon { width: 36px; height: 36px; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; font-size: 0.85rem; flex-shrink: 0; }
.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.8rem; font-weight: 600; color: var(--color-muted); letter-spacing: 0.05em; }
.form-group input, .form-group textarea, .form-group select { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 0.85rem 1rem; color: var(--color-text); font-family: var(--font-body); font-size: 0.9rem; transition: border-color var(--transition); outline: none; width: 100%; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(91,78,255,0.1); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--color-muted); opacity: 0.6; }

.site-footer { background: var(--color-bg-2); border-top: 1px solid var(--color-border); padding: 4rem 0 2rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer-brand p { font-size: 0.9rem; max-width: 280px; margin-top: 1rem; }
.footer-col h4 { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-muted); margin-bottom: 1.25rem; }
.footer-col ul { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-col a { font-size: 0.875rem; color: var(--color-muted); transition: color var(--transition); }
.footer-col a:hover { color: var(--color-text); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 2rem; border-top: 1px solid var(--color-border); font-size: 0.8rem; color: var(--color-muted); }

@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2,1fr); } .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 768px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 1.5rem; }
  .main-nav, .header-cta .btn { display: none; }
  .menu-toggle { display: flex; }
  .main-nav.open { display: flex; flex-direction: column; position: fixed; top: var(--header-height); left: 0; right: 0; bottom: 0; background: var(--color-bg); padding: 2rem; }
  .main-nav.open ul { flex-direction: column; gap: 0; }
  .main-nav.open a { display: block; padding: 1.25rem 0; border-bottom: 1px solid var(--color-border); font-size: 1.1rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}

.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .fade-up { opacity: 1; transform: none; transition: none; animation: none; }
}
.wp-block-image img { border-radius: var(--radius); }
.aligncenter { margin: 0 auto; display: block; }
.alignleft { float: left; margin-right: 1.5rem; }
.alignright { float: right; margin-left: 1.5rem; }
.screen-reader-text { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.screen-reader-text:focus { clip: auto; height: auto; overflow: auto; position: fixed; top: 1rem; left: 1rem; width: auto; padding: 0.85rem 1.5rem; background: var(--color-accent); color: #fff; font-weight: 600; font-size: 0.9rem; z-index: 9999; border-radius: var(--radius); text-decoration: none; }
.pagination { display: flex; gap: 0.5rem; justify-content: center; margin: 3rem 0; }
.pagination a, .pagination span { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); font-size: 0.875rem; color: var(--color-muted); transition: all var(--transition); }
.pagination a:hover, .pagination .current { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }

/* ── Entry Content (shared by page, single, portfolio) ── */
.entry-content { max-width: 780px; }
.entry-content p { color: var(--color-text); margin-bottom: 1.25rem; }
.entry-content h2, .entry-content h3, .entry-content h4 { margin: 2.5rem 0 1rem; }
.entry-content ul, .entry-content ol { padding-left: 1.5rem; list-style: revert; color: var(--color-muted); margin-bottom: 1.25rem; line-height: 1.8; }
.entry-content li { margin-bottom: 0.4rem; }
.entry-content a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 3px; }
.entry-content img { border-radius: var(--radius); margin: 2rem 0; }
.entry-content blockquote { border-left: 3px solid var(--color-accent); padding: 1rem 1.5rem; margin: 2rem 0; background: var(--color-surface); border-radius: 0 var(--radius) var(--radius) 0; }
.entry-content blockquote p { color: var(--color-muted); font-style: italic; margin: 0; }
.entry-content pre { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1.5rem; overflow-x: auto; font-family: var(--font-mono); font-size: 0.85rem; margin: 1.5rem 0; color: var(--color-text); }
.entry-content code { font-family: var(--font-mono); background: var(--color-surface); padding: 0.15em 0.4em; border-radius: 4px; font-size: 0.875em; color: var(--color-accent-2); }
.entry-content pre code { background: none; padding: 0; color: inherit; }
.entry-content table { width: 100%; border-collapse: collapse; margin: 2rem 0; font-size: 0.9rem; }
.entry-content th, .entry-content td { padding: 0.75rem 1rem; border: 1px solid var(--color-border); text-align: left; }
.entry-content th { background: var(--color-surface); color: var(--color-text); font-weight: 600; }
.entry-content td { color: var(--color-muted); }

/* ── Page Template ── */
.page-header { padding: 8rem 0 4rem; background: var(--color-bg-2); border-bottom: 1px solid var(--color-border); }
.page-header .eyebrow { margin-bottom: 0.75rem; }

/* ── Single Post ── */
.post-header { padding: 8rem 0 4rem; background: var(--color-bg-2); border-bottom: 1px solid var(--color-border); }
.post-header h1 { max-width: 820px; }
.post-meta { display: flex; gap: 1.5rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.post-meta-item { font-size: 0.8rem; color: var(--color-muted); font-family: var(--font-mono); letter-spacing: 0.05em; }
.post-meta-item a { color: var(--color-muted); }
.post-meta-item a:hover { color: var(--color-accent); }
.post-featured-image { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 3rem; }
.post-featured-image img { width: 100%; }
.post-tags { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--color-border); }
.post-navigation { margin-top: 4rem; padding-top: 2rem; border-top: 1px solid var(--color-border); display: flex; gap: 2rem; }
.post-navigation .nav-links { display: flex; justify-content: space-between; width: 100%; gap: 2rem; }
.post-navigation a { display: flex; flex-direction: column; gap: 0.25rem; text-decoration: none; color: var(--color-text); background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1.25rem 1.5rem; flex: 1; transition: all var(--transition); }
.post-navigation a:hover { border-color: rgba(91,78,255,0.4); color: var(--color-accent); }
.post-navigation .nav-subtitle { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-muted); }
.post-navigation .nav-title { font-family: var(--font-display); font-weight: 700; font-size: 0.95rem; }
.post-navigation .nav-next { text-align: right; }
.post-tag-link { display: inline-block; padding: 0.3rem 0.8rem; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 999px; font-size: 0.75rem; color: var(--color-muted); transition: all var(--transition); text-decoration: none; }
.post-tag-link:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* ── Blog Archive ── */
.archive-header { padding: 8rem 0 4rem; background: var(--color-bg-2); border-bottom: 1px solid var(--color-border); }
.archive-header h1 { margin-top: 0.5rem; }
.archive-desc { font-size: 1.05rem; max-width: 560px; margin-top: 1rem; }
.posts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.post-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition); display: flex; flex-direction: column; }
.post-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.3); border-color: rgba(91,78,255,0.3); }
.post-card-thumb { aspect-ratio: 16/9; background: var(--color-bg-3); overflow: hidden; display: block; }
.post-card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition); }
.post-card:hover .post-card-thumb img { transform: scale(1.04); }
.post-card-body { padding: 1.5rem; flex: 1; }
.post-card-body h2 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.post-card-body h2 a { color: var(--color-text); text-decoration: none; }
.post-card-body h2 a:hover { color: var(--color-accent); }
.post-card-body p { font-size: 0.875rem; margin-bottom: 0; }
.post-card-footer { padding: 0 1.5rem 1.5rem; }

/* ── Portfolio Archive ── */
.portfolio-archive-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.work-card { display: block; text-decoration: none; }

/* ── Single Portfolio ── */
.project-header { padding: 8rem 0 5rem; background: var(--color-bg-2); border-bottom: 1px solid var(--color-border); }
.project-header h1 { max-width: 820px; margin-top: 0.5rem; }
.project-meta-bar { display: flex; gap: 3rem; flex-wrap: wrap; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--color-border); }
.project-meta-item label { display: block; font-size: 0.7rem; font-family: var(--font-mono); letter-spacing: 0.1em; color: var(--color-muted); text-transform: uppercase; margin-bottom: 0.4rem; }
.project-meta-item span, .project-meta-item a { font-size: 0.95rem; color: var(--color-text); font-weight: 500; }
.project-meta-item a:hover { color: var(--color-accent); }
.project-featured { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 5rem; }
.project-featured img { width: 100%; }
.project-body { max-width: 780px; margin: 0 auto; }

/* ── 404 ── */
.error-404-wrap { min-height: 75vh; display: flex; align-items: center; justify-content: center; text-align: center; }
.error-404-wrap .error-num { font-family: var(--font-display); font-size: clamp(6rem, 18vw, 14rem); font-weight: 800; line-height: 1; background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; display: block; margin-bottom: 0.5rem; }
.error-404-wrap h2 { font-size: clamp(1.4rem, 3vw, 2rem); margin-bottom: 1rem; }
.error-404-wrap p { font-size: 1.05rem; margin-bottom: 2.5rem; }

/* ── Responsive additions ── */
@media (max-width: 768px) {
  .posts-grid { grid-template-columns: 1fr; }
  .portfolio-archive-grid { grid-template-columns: 1fr; }
  .project-meta-bar { gap: 1.5rem; }
  .post-header h1, .project-header h1 { font-size: clamp(1.8rem, 6vw, 3rem); }
}