*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: 'DM Sans', sans-serif; line-height: 1.6; min-height: 100vh; transition: background 0.3s, color 0.3s; }

/* ── SCHEME: Cool Zinc (default) ── */
:root {
  --bg:        #F2F3F5;
  --bg2:       #E8EAED;
  --bg3:       #DDE0E5;
  --surface:   #FAFBFC;
  --border:    #CDD1D8;
  --border2:   #B8BEC8;
  --text:      #1A1D24;
  --text2:     #5A6172;
  --text3:     #8A93A2;
  --accent:    #2563EB;
  --accent2:   #4F82F5;
  --accent-bg: #E8EFFD;
  --mono-bg:   #E4E7EB;
  --tag-bg:    #DDE1E8;
  --green:     #16A34A;
  --yellow:    #CA8A04;
}

/* ── TYPOGRAPHY ── */
h1,h2,h3,h4,h5 { font-family: 'Sora', sans-serif; font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
.mono { font-family: 'JetBrains Mono', monospace; }
.shell-comment { font-family: 'JetBrains Mono', monospace; color: var(--text3); font-size: 0.75rem; letter-spacing: 0.02em; }

/* ── LAYOUT ── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 780px; margin: 0 auto; padding: 0 24px; }

/* ── NAV ── */
.nav { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.nav-inner { display: flex; align-items: center; gap: 0; height: 60px; }
.nav-logo { font-family: 'Sora', sans-serif; font-weight: 800; font-size: 1rem; color: var(--text); text-decoration: none; flex-shrink: 0; cursor: pointer; }
.nav-logo span { color: var(--accent); }
.nav-status { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--green); background: color-mix(in oklch, var(--green) 12%, transparent); border: 1px solid color-mix(in oklch, var(--green) 25%, transparent); padding: 2px 8px; border-radius: 3px; margin-left: 16px; white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-link { font-family: 'DM Sans', sans-serif; font-size: 0.875rem; font-weight: 500; color: var(--text2); padding: 6px 12px; border-radius: 6px; cursor: pointer; border: none; background: none; transition: color 0.15s, background 0.15s; text-decoration: none; display: inline-block; }
.nav-link:hover, .nav-link.active { color: var(--text); background: var(--bg2); }
.nav-link.active { color: var(--accent); }

/* ── HERO ── */
.hero { padding: 80px 0 64px; border-bottom: 1px solid var(--border); }
.hero-eyebrow { font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; color: var(--accent); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
.hero-eyebrow::before { content: ''; display: inline-block; width: 24px; height: 1px; background: var(--accent); }
.hero h1 { font-size: clamp(2.4rem, 5vw, 4rem); max-width: 780px; color: var(--text); margin-bottom: 20px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-sub { font-size: 1.1rem; color: var(--text2); max-width: 560px; line-height: 1.7; margin-bottom: 36px; }
.hero-terminal { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 16px 20px; font-family: 'JetBrains Mono', monospace; font-size: 0.78rem; color: var(--text2); max-width: 520px; }
.hero-terminal .prompt { color: var(--accent); }
.hero-terminal .cursor { display: inline-block; width: 8px; height: 14px; background: var(--accent); opacity: 0.8; animation: blink 1.1s step-end infinite; vertical-align: middle; margin-left: 2px; }
@keyframes blink { 0%,100%{opacity:.8} 50%{opacity:0} }

/* ── SECTION HEADER ── */
.section-header { margin-bottom: 32px; }
.section-header .shell { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--text3); margin-bottom: 8px; }
.section-header h2 { font-size: 1.6rem; color: var(--text); }
.section-header p { color: var(--text2); margin-top: 6px; font-size: 0.95rem; }

/* ── CATEGORY FILTER ── */
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; padding: 16px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.filter-btn { font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; font-weight: 500; padding: 5px 12px; border-radius: 4px; border: 1px solid var(--border); background: var(--surface); color: var(--text2); cursor: pointer; transition: all 0.15s; white-space: nowrap; }
.filter-btn:hover { border-color: var(--accent); color: var(--accent); }
.filter-btn.active { background: var(--accent); border-color: var(--accent); color: white; }

/* ── BLOG CARDS ── */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 24px; cursor: pointer; transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s; }
.card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 24px color-mix(in oklch, var(--text) 8%, transparent); }
.card-cat { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent); margin-bottom: 12px; }
.card h3 { font-size: 1.05rem; color: var(--text); line-height: 1.35; margin-bottom: 10px; }
.card-excerpt { font-size: 0.875rem; color: var(--text2); line-height: 1.65; margin-bottom: 16px; }
.card-footer { display: flex; align-items: center; justify-content: space-between; }
.card-date { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text3); }
.tags { display: flex; flex-wrap: wrap; gap: 4px; }
.tag { font-family: 'JetBrains Mono', monospace; font-size: 0.62rem; padding: 2px 7px; border-radius: 3px; background: var(--tag-bg); color: var(--text2); border: 1px solid var(--border); }
.tag::before { content: '#'; opacity: 0.5; }
.read-more { font-size: 0.8rem; color: var(--accent); font-weight: 600; cursor: pointer; background: none; border: none; padding: 0; }

/* ── BLOG PAGE ── */
.blog-layout { display: grid; grid-template-columns: 1fr 260px; gap: 40px; align-items: start; }
.blog-list { display: flex; flex-direction: column; gap: 20px; }
.blog-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 24px 28px; cursor: pointer; transition: border-color 0.2s, box-shadow 0.2s; display: flex; gap: 20px; }
.blog-card:hover { border-color: var(--accent); box-shadow: 0 4px 16px color-mix(in oklch, var(--text) 6%, transparent); }
.blog-card-meta { flex-shrink: 0; width: 120px; padding-top: 2px; }
.blog-card-date { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text3); line-height: 1.8; }
.blog-card-body { flex: 1; }
.blog-card-body h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--text); line-height: 1.3; }
.blog-card-body p { font-size: 0.875rem; color: var(--text2); line-height: 1.65; margin-bottom: 12px; }
.sidebar { position: sticky; top: 80px; }
.sidebar-block { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin-bottom: 16px; }
.sidebar-block h4 { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text3); margin-bottom: 14px; }
.search-input { width: 100%; background: var(--bg2); border: 1px solid var(--border); border-radius: 6px; padding: 8px 12px; font-family: 'DM Sans', sans-serif; font-size: 0.875rem; color: var(--text); outline: none; transition: border-color 0.15s; }
.search-input:focus { border-color: var(--accent); }
.search-input::placeholder { color: var(--text3); }
.cat-list { list-style: none; }
.cat-item { display: flex; align-items: center; justify-content: space-between; padding: 7px 0; border-bottom: 1px solid var(--border); cursor: pointer; font-size: 0.875rem; color: var(--text2); transition: color 0.15s; }
.cat-item:last-child { border-bottom: none; }
.cat-item:hover { color: var(--accent); }
.cat-count { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; background: var(--tag-bg); padding: 1px 6px; border-radius: 3px; color: var(--text3); }
.pagination { display: flex; align-items: center; gap: 8px; margin-top: 32px; }
.page-btn { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; padding: 6px 12px; border-radius: 5px; border: 1px solid var(--border); background: var(--surface); color: var(--text2); cursor: pointer; transition: all 0.15s; }
.page-btn:hover { border-color: var(--accent); color: var(--accent); }
.page-btn.active { background: var(--accent); border-color: var(--accent); color: white; }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── THE LAB ── */
.lab-intro { background: var(--mono-bg); border: 1px solid var(--border); border-radius: 10px; padding: 24px; font-family: 'JetBrains Mono', monospace; font-size: 0.78rem; color: var(--text2); line-height: 1.8; margin-bottom: 40px; }
.lab-intro .prompt { color: var(--accent); }
.machines-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; margin-bottom: 48px; }
.machine-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; transition: border-color 0.2s, box-shadow 0.2s; }
.machine-card:hover { border-color: var(--accent2); box-shadow: 0 4px 16px color-mix(in oklch, var(--text) 6%, transparent); }
.machine-header { background: var(--bg2); border-bottom: 1px solid var(--border); padding: 14px 20px; display: flex; align-items: center; gap: 10px; }
.machine-icon { width: 28px; height: 28px; background: var(--accent); border-radius: 4px; display: flex; align-items: center; justify-content: center; font-size: 0.75rem; color: white; font-family: 'JetBrains Mono', monospace; font-weight: 600; flex-shrink: 0; }
.machine-name { font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; font-weight: 600; color: var(--text); }
.machine-role { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--accent); }
.machine-body { padding: 16px 20px; }
.spec-table { width: 100%; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; }
.spec-table tr td { padding: 4px 0; }
.spec-table td:first-child { color: var(--text3); width: 72px; }
.spec-table td:last-child { color: var(--text); }
.machine-status { display: inline-flex; align-items: center; gap: 5px; font-family: 'JetBrains Mono', monospace; font-size: 0.62rem; padding: 3px 8px; border-radius: 3px; margin-top: 12px; }
.status-online { background: color-mix(in oklch, var(--green) 12%, transparent); color: var(--green); border: 1px solid color-mix(in oklch, var(--green) 30%, transparent); }
.status-dot { width: 5px; height: 5px; border-radius: 50%; background: currentColor; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }
.network-diagram { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 40px; text-align: center; margin-bottom: 48px; }
.network-diagram-inner { border: 2px dashed var(--border2); border-radius: 8px; padding: 60px 40px; }
.network-diagram p { font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; color: var(--text3); margin-bottom: 8px; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.service-item { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px; display: flex; align-items: center; gap: 12px; transition: border-color 0.15s; }
.service-item:hover { border-color: var(--border2); }
.service-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); flex-shrink: 0; }
.service-name { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; font-weight: 600; color: var(--text); }
.service-desc { font-size: 0.72rem; color: var(--text3); }

/* ── ABOUT ── */
.about-layout { display: grid; grid-template-columns: 1fr 280px; gap: 60px; align-items: start; }
.about-photo { background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; aspect-ratio: 3/4; display: flex; align-items: center; justify-content: center; position: sticky; top: 80px; }
.about-photo-inner { text-align: center; }
.about-photo-inner p { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--text3); margin-top: 8px; }
.about-content h1 { font-size: 2.4rem; margin-bottom: 8px; }
.about-content .subtitle { font-family: 'JetBrains Mono', monospace; font-size: 0.78rem; color: var(--accent); margin-bottom: 32px; }
.about-section { margin-bottom: 36px; }
.about-section h3 { font-size: 1rem; font-family: 'JetBrains Mono', monospace; color: var(--text3); font-weight: 500; margin-bottom: 12px; }
.about-section h3::before { content: '# '; color: var(--accent); }
.about-section p { font-size: 0.95rem; color: var(--text2); line-height: 1.8; margin-bottom: 12px; }
.stats-row { display: flex; gap: 24px; flex-wrap: wrap; margin-top: 24px; }
.stat-box { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 16px 20px; min-width: 120px; }
.stat-num { font-family: 'Sora', sans-serif; font-size: 1.8rem; font-weight: 800; color: var(--accent); }
.stat-label { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--text3); margin-top: 2px; }

/* ── CONTACT ── */
.contact-layout { display: grid; grid-template-columns: 1fr 300px; gap: 60px; align-items: start; }
.contact-form-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 36px; }
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--text3); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 7px; }
.form-input, .form-textarea { width: 100%; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 10px 14px; font-family: 'DM Sans', sans-serif; font-size: 0.9rem; color: var(--text); outline: none; transition: border-color 0.15s; }
.form-input:focus, .form-textarea:focus { border-color: var(--accent); }
.form-input::placeholder, .form-textarea::placeholder { color: var(--text3); }
.form-textarea { resize: vertical; min-height: 140px; line-height: 1.6; }
.btn-primary { background: var(--accent); color: white; border: none; border-radius: 7px; padding: 11px 24px; font-family: 'DM Sans', sans-serif; font-size: 0.9rem; font-weight: 600; cursor: pointer; transition: background 0.15s, transform 0.1s; text-decoration: none; display: inline-block; }
.btn-primary:hover { background: var(--accent2); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.socials-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 24px; margin-bottom: 16px; }
.socials-card h4 { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text3); margin-bottom: 16px; }
.social-link { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 0.875rem; color: var(--text2); text-decoration: none; cursor: pointer; transition: color 0.15s; }
.social-link:last-child { border-bottom: none; }
.social-link:hover { color: var(--accent); }
.social-icon { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; width: 28px; height: 28px; background: var(--bg2); border: 1px solid var(--border); border-radius: 5px; display: flex; align-items: center; justify-content: center; color: var(--text3); flex-shrink: 0; }

/* ── FOOTER ── */
.footer { border-top: 1px solid var(--border); padding: 32px 0; margin-top: 80px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-text { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--text3); }
.footer-uptime { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; color: var(--green); }

/* ── PAGE WRAPPER ── */
.page { padding: 48px 0 40px; }
.page-hero { padding: 48px 0 36px; border-bottom: 1px solid var(--border); margin-bottom: 48px; }
.page-hero .shell { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--text3); margin-bottom: 10px; }
.page-hero h1 { font-size: 2.2rem; margin-bottom: 10px; }
.page-hero p { font-size: 1rem; color: var(--text2); }


/* ── POST CONTENT ── */
.post-header { padding: 48px 0 40px; border-bottom: 1px solid var(--border); margin-bottom: 48px; }
.post-header .back-link { font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; color: var(--text3); text-decoration: none; display: inline-flex; align-items: center; gap: 6px; margin-bottom: 20px; transition: color 0.15s; }
.post-header .back-link:hover { color: var(--accent); }
.post-header .post-cat { font-family: 'JetBrains Mono', monospace; font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent); margin-bottom: 12px; }
.post-header h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); max-width: 720px; margin-bottom: 16px; }
.post-meta { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; color: var(--text3); display: flex; gap: 16px; flex-wrap: wrap; }
.post-content { font-size: 1rem; color: var(--text2); line-height: 1.8; }
.post-content h2 { font-size: 1.5rem; color: var(--text); margin: 40px 0 16px; }
.post-content h3 { font-size: 1.2rem; color: var(--text); margin: 32px 0 12px; }
.post-content p { margin-bottom: 20px; }
.post-content ul, .post-content ol { padding-left: 24px; margin-bottom: 20px; }
.post-content li { margin-bottom: 8px; }
.post-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.post-content a:hover { color: var(--accent2); }
.post-content pre { background: var(--mono-bg); border: 1px solid var(--border); border-radius: 8px; padding: 20px; overflow-x: auto; margin-bottom: 20px; }
.post-content code { font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; }
.post-content pre code { font-size: 0.8rem; color: var(--text); }
.post-content :not(pre) > code { background: var(--mono-bg); border: 1px solid var(--border); border-radius: 4px; padding: 2px 6px; font-size: 0.82rem; color: var(--text); }
.post-content blockquote { border-left: 3px solid var(--accent); padding: 12px 20px; margin: 24px 0; background: var(--accent-bg); border-radius: 0 6px 6px 0; color: var(--text2); font-style: italic; }
.post-content img { max-width: 100%; border-radius: 8px; border: 1px solid var(--border); margin: 24px 0; }
.post-content hr { border: none; border-top: 1px solid var(--border); margin: 40px 0; }
.post-footer { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }

/* ── EMPTY STATE ── */
.empty-state { padding: 60px 0; text-align: center; color: var(--text3); font-family: 'JetBrains Mono', monospace; font-size: 0.8rem; line-height: 2; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .blog-layout { grid-template-columns: 1fr; }
  .blog-card { flex-direction: column; gap: 12px; }
  .blog-card-meta { width: auto; }
  .about-layout { grid-template-columns: 1fr; }
  .about-photo { position: static; aspect-ratio: 16/7; }
  .contact-layout { grid-template-columns: 1fr; }
  .nav-status { display: none; }
  .nav-inner { flex-wrap: wrap; height: auto; padding: 10px 0; gap: 8px; justify-content: center; }
  .nav-logo { width: 100%; text-align: center; }
  .nav-links { margin-left: 0; width: 100%; justify-content: center; flex-wrap: wrap; gap: 2px; }
  .nav-link { padding: 6px 10px; font-size: 0.82rem; }
}
@media (max-width: 540px) {
  .cards-grid { grid-template-columns: 1fr; }
  .machines-grid { grid-template-columns: 1fr; }
}