/* ============================================================
   patrickquirk.com — v2
   Editorial system: DM Sans + DM Mono, off-white, hairline-ruled.
   Palette + components copied from the Mothership / Net Works
   style guide (CSS-STYLE-GUIDE-MOTHERSHIP-NETWORKS.md).
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@300;400;500&family=DM+Sans:wght@300;400;500;600;700&display=swap');

/* ---- 1. Tokens -------------------------------------------- */
:root {
  --sans: 'DM Sans', system-ui, -apple-system, sans-serif;
  --mono: 'DM Mono', ui-monospace, monospace;

  --bg:     #fafafa;
  --bg-alt: #ffffff;
  --black:  #000000;
  --text:   #1a1a1a;
  --dim:    #666666;   /* was #999 — readable quiet body / nav text (4.7:1 on #fafafa) */
  --faint:  #808080;   /* was #bbb — labels & metadata no longer disappear (3.9:1) */
  --muted:  #9a9a9a;   /* was #ccc — project IDs (PQ-001, PQ-018...) are legible (2.9:1) */
  --rule:   #e2e2e2;   /* was #eee — hairline borders stay subtle but visible */

  --accent:     #667eea;
  --accent-dim: rgba(102, 126, 234, 0.08);
  --success:    #2ecc71;
  --warning:    #f0c040;
  --danger:     #e74c3c;

  --radius: 6px;

  --shadow:    0 1px 3px rgba(0,0,0,0.04);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.06);
}

[data-theme="dark"] {
  --bg:     #0a0a0a;
  --bg-alt: #111111;
  --black:  #ffffff;
  --text:   #e0e0e0;
  --dim:    #8a8a8a;   /* was #666 — quiet body / nav text, 9.5:1 on #0a0a0a */
  --faint:  #757575;   /* was #444 — labels & metadata, 7.0:1 */
  --muted:  #5f5f5f;   /* was #333 — project IDs now legible, 4.6:1 */
  --rule:   #2a2a2a;   /* was #1e1e1e — hairline borders visible against bg */

  --shadow:    0 1px 3px rgba(0,0,0,0.4);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.5);
}

/* ---- 2. Globals ------------------------------------------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--black); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--dim); }

img, svg { max-width: 100%; display: block; }

ul { list-style: none; }

::selection { background: var(--black); color: var(--bg); }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--muted); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--dim); }

/* ---- 3. Nav ----------------------------------------------- */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 60px;
  height: 64px;
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  background: rgba(250, 250, 250, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100;
}
[data-theme="dark"] .nav { background: rgba(10, 10, 10, 0.95); }

.nav-logo {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--black);
  letter-spacing: 3px;
  text-transform: uppercase;
  white-space: nowrap;
}
.nav-logo .sep { color: var(--faint); font-weight: 300; margin: 0 2px; }

.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--dim);
  transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--black); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--faint);
  letter-spacing: 2px;
  text-transform: uppercase;
}
.status-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 3s infinite;
}
@keyframes pulse {
  0%, 90%, 100% { opacity: 1; }
  95%           { opacity: 0.3; }
}

.theme-btn {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--faint);
  letter-spacing: 2px;
  background: none;
  border: 1px solid var(--rule);
  padding: 5px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
}
.theme-btn:hover { border-color: var(--dim); color: var(--dim); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  z-index: 200;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--black);
  transition: all 0.3s;
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg)  translate(5px,  5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(250, 250, 250, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 150;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 32px;
}
[data-theme="dark"] .mobile-menu { background: rgba(10, 10, 10, 0.98); }
.mobile-menu.active { display: flex; }
.mobile-menu a {
  font-family: var(--mono);
  font-size: 16px;
  color: var(--black);
  letter-spacing: 4px;
  text-transform: uppercase;
  transition: color 0.2s;
}
.mobile-menu a:hover { color: var(--dim); }

/* ---- 4. Section scaffold ---------------------------------- */
.section {
  padding: 80px 60px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--faint);
  letter-spacing: 5px;
  text-transform: uppercase;
  margin-bottom: 36px;
}

.divider {
  width: 40px;
  height: 3px;
  background: var(--black);
  margin: 0 60px;
}

/* ---- 4b. Numbers strip (§4.7) ----------------------------- */
.numbers {
  padding: 60px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--bg-alt);
}
.numbers-inner { max-width: 1200px; margin: 0 auto; }
.numbers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 40px 48px;
  margin-top: 32px;
}
.num-item { }
.num-value {
  font-family: var(--mono);
  font-size: 36px;
  font-weight: 500;
  color: var(--black);
  letter-spacing: -1px;
  line-height: 1.1;
}
.num-label {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--dim);
  margin-top: 6px;
  letter-spacing: 0.5px;
}

/* ---- 5. Hero ---------------------------------------------- */
.hero {
  padding: 140px 60px 100px;
  max-width: 900px;
  margin: 0 auto;
}
.hero-label {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--faint);
  letter-spacing: 5px;
  text-transform: uppercase;
  margin-bottom: 28px;
}
.hero h1 {
  font-family: var(--sans);
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 700;
  color: var(--black);
  line-height: 1.05;
  letter-spacing: -1.5px;
  margin-bottom: 28px;
}
.hero-sub {
  font-size: 18px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 8px;
}
.hero-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 28px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}

/* ---- 6. Buttons ------------------------------------------- */
.btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--rule);
  background: var(--bg-alt);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}
.btn:hover { border-color: var(--dim); box-shadow: var(--shadow); color: var(--text); }

.btn-primary {
  background: var(--black);
  border-color: var(--black);
  color: var(--bg);
}
.btn-primary:hover { opacity: 0.85; color: var(--bg); }

.mono-link {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--black);
  border-bottom: 1px solid var(--black);
  padding-bottom: 1px;
  transition: all 0.2s;
}
.mono-link:hover { color: var(--dim); border-color: var(--dim); }

/* ---- 7. About --------------------------------------------- */
.about p {
  font-size: 17px;
  font-weight: 300;
  color: #666;
  line-height: 1.8;
  max-width: 720px;
  margin-bottom: 20px;
}
[data-theme="dark"] .about p { color: var(--dim); }
.about p:last-child { margin-bottom: 0; }

/* ---- 8. Experience timeline (svc-list style) -------------- */
.experience-list li {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--rule);
  transition: padding-left 0.3s;
  align-items: start;
}
.experience-list li:hover { padding-left: 12px; }

.experience-list .item-id {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 2px;
  padding-top: 4px;
}
.experience-list .item-body h3 {
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 4px;
}
.experience-list .item-body .company {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--dim);
  margin-bottom: 14px;
}
.experience-list .item-body ul li {
  display: block;
  border: none;
  padding: 4px 0 4px 18px;
  position: relative;
  font-size: 14px;
  font-weight: 300;
  color: var(--text);
  line-height: 1.65;
}
.experience-list .item-body ul li:hover { padding-left: 18px; }
.experience-list .item-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 1px;
  background: var(--muted);
}
.experience-list .date {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--faint);
  letter-spacing: 2px;
  text-transform: uppercase;
  white-space: nowrap;
  padding-top: 4px;
}

/* ---- 9. Skills -------------------------------------------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}
.skill-card {
  padding: 28px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--bg-alt);
  transition: all 0.2s;
}
.skill-card:hover { box-shadow: var(--shadow-lg); }
.skill-card h3 {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--faint);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.skill-card h3 + ul { margin-bottom: 24px; }
.skill-card ul li {
  font-size: 14px;
  color: var(--text);
  padding: 6px 0;
  border-bottom: 1px solid var(--rule);
  font-weight: 400;
}
.skill-card ul li:last-child { border-bottom: none; }

/* ---- 10. Education ---------------------------------------- */
.education-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}
.education-card {
  padding: 28px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--bg-alt);
}
.education-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--black);
  line-height: 1.4;
  margin-bottom: 8px;
}
.education-card .school {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--dim);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.education-card .detail {
  font-size: 14px;
  color: var(--dim);
  font-weight: 300;
}

/* ---- 11. Projects ----------------------------------------- */
.projects-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
  align-items: center;
}
.projects-controls input[type="search"] {
  flex: 1;
  min-width: 220px;
  font-family: var(--sans);
  font-size: 14px;
  padding: 10px 14px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--bg-alt);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
}
.projects-controls input[type="search"]:focus { border-color: var(--black); }
.projects-controls input[type="search"]::placeholder { color: var(--muted); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}
.project-card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  background: var(--bg-alt);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  transition: all 0.2s;
}
.project-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.project-card.featured {
  border-color: var(--muted);
  position: relative;
}
.project-card.featured::before {
  content: 'FEATURED';
  position: absolute;
  top: -1px;
  right: 20px;
  background: var(--black);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 2px;
  padding: 4px 8px;
  border-radius: 0 0 3px 3px;
}

.project-card .project-id {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 2px;
  margin-bottom: 8px;
}
.project-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--black);
  line-height: 1.3;
  margin-bottom: 10px;
}
.project-card .project-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.project-card .project-meta .tag { color: var(--dim); }
.project-card .project-meta .stars { color: var(--text); font-weight: 500; }
.project-card .project-meta .date { color: var(--faint); }
.project-card .project-meta .sep { color: var(--muted); }

.project-card .project-desc {
  font-size: 14px;
  font-weight: 300;
  color: var(--text);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}
.tech-tag {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--dim);
  padding: 3px 8px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  white-space: nowrap;
}

.project-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.project-links a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--black);
  border-bottom: 1px solid var(--black);
  padding-bottom: 1px;
  transition: all 0.2s;
}
.project-links a:hover { color: var(--dim); border-color: var(--dim); }

.projects-footer {
  margin-top: 48px;
  text-align: center;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
  letter-spacing: 2px;
  text-transform: uppercase;
}
.projects-footer .count { color: var(--black); font-weight: 500; }

.projects-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--dim);
  font-size: 14px;
}

/* ---- 12. Articles / Blog ---------------------------------- */
.articles-intro {
  font-size: 16px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 28px;
}
.articles-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}
.articles-controls input,
.articles-controls select {
  font-family: var(--sans);
  font-size: 14px;
  padding: 10px 14px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--bg-alt);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
}
.articles-controls input { flex: 1; min-width: 220px; }
.articles-controls input:focus,
.articles-controls select:focus { border-color: var(--black); }

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}
.article-card {
  padding: 24px;
  background: var(--bg-alt);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.article-card .article-meta {
  display: flex;
  gap: 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 12px;
}
.article-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--black);
  line-height: 1.35;
  margin-bottom: 10px;
}
.article-card p {
  font-size: 14px;
  font-weight: 300;
  color: var(--text);
  line-height: 1.65;
  margin-bottom: 16px;
  flex-grow: 1;
}
.article-card .read-link {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--black);
  border-bottom: 1px solid var(--black);
  padding-bottom: 1px;
  align-self: flex-start;
}

/* ---- 13. Newsletter --------------------------------------- */
.newsletter {
  padding: 80px 60px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--bg-alt);
}
.newsletter-inner { max-width: 900px; margin: 0 auto; }
.newsletter h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--black);
  letter-spacing: -1px;
  margin-bottom: 12px;
}
.newsletter p {
  font-size: 15px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 24px;
}
.newsletter-form { display: flex; gap: 12px; max-width: 520px; flex-wrap: wrap; }
.newsletter-form input[type="email"] {
  flex: 1;
  min-width: 240px;
  font-family: var(--sans);
  font-size: 14px;
  padding: 12px 14px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
}
.newsletter-form input[type="email"]:focus { border-color: var(--black); }
.newsletter-form button { padding: 12px 28px; }
.newsletter-note {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--faint);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-top: 16px;
}
.newsletter-msg {
  margin-top: 12px;
  font-size: 13px;
  color: var(--dim);
}

/* ---- 13b. Contact form ------------------------------------ */
.contact-form {
  max-width: 640px;
  margin: 32px 0 24px;
}
.contact-form .form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.contact-form .field { margin-bottom: 20px; }
.contact-form label {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 8px;
}
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  width: 100%;
  font-family: var(--sans);
  font-size: 14px;
  padding: 11px 14px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--bg-alt);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus { border-color: var(--black); }
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--muted); }
.contact-form textarea {
  resize: vertical;
  line-height: 1.65;
  min-height: 140px;
  font-family: var(--sans);
}
.contact-form .form-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.contact-form .form-actions .btn[disabled] { opacity: 0.6; cursor: default; }
.form-status {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--dim);
}
.form-status.ok  { color: var(--success); }
.form-status.err { color: var(--danger); }

@media (max-width: 640px) {
  .contact-form .form-grid { grid-template-columns: 1fr; gap: 16px; }
}

/* ---- 14. Contact ------------------------------------------ */
.contact-text {
  font-size: 17px;
  font-weight: 300;
  color: var(--dim);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 32px;
}
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 28px 40px;
}
.contact-links a {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--black);
  border-bottom: 1px solid var(--black);
  padding-bottom: 2px;
  transition: all 0.2s;
}
.contact-links a:hover { color: var(--dim); border-color: var(--dim); }

/* ---- 15. Footer ------------------------------------------- */
.footer {
  padding: 40px 60px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
  letter-spacing: 1px;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer a { color: var(--faint); }
.footer a:hover { color: var(--dim); }
.footer .footer-left,
.footer .footer-right {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

/* ---- 15b. Article body (for pages/wardriving, pages/privacy) ---- */
.article-body {
  max-width: 760px;
  margin: 0 auto;
  font-size: 16px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--text);
}
.article-body .article-title {
  font-size: clamp(28px, 4.5vw, 48px);
  font-weight: 700;
  color: var(--black);
  letter-spacing: -1px;
  line-height: 1.1;
  margin-bottom: 12px;
}
.article-body .article-sub {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 32px;
}
.article-body h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--black);
  letter-spacing: -0.5px;
  margin: 48px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}
.article-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--black);
  margin: 32px 0 12px;
}
.article-body h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 24px 0 8px;
}
.article-body p { margin-bottom: 16px; }
.article-body ul {
  list-style: disc;
  padding-left: 22px;
  margin-bottom: 16px;
}
.article-body ul li { padding: 4px 0; }
.article-body hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 40px 0;
}
.article-body strong { color: var(--black); font-weight: 600; }
.article-body a {
  color: var(--black);
  border-bottom: 1px solid var(--rule);
  transition: border-color 0.2s;
}
.article-body a:hover { border-color: var(--black); }
.article-body pre {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--bg-alt);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 14px 18px;
  overflow-x: auto;
  margin: 12px 0 20px;
  line-height: 1.6;
}
.article-body code {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--bg-alt);
  border: 1px solid var(--rule);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--text);
}
.article-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
}
.article-body .header { margin-bottom: 24px; }
.article-body .author {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--faint);
  margin-top: 8px;
}
.article-body .footer { /* inline footer within article body */
  margin: 60px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--faint);
}

/* ---- 16. Utilities ---------------------------------------- */
.mono { font-family: var(--mono); }
.text-center { text-align: center; }
.text-right  { text-align: right; }
.hidden { display: none !important; }
.rule {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 0;
}

/* ---- 17. Responsive --------------------------------------- */
@media (max-width: 768px) {
  .nav           { padding: 0 20px; }
  .nav-links     { display: none; }
  .nav-status    { display: none; }
  .hamburger     { display: flex; }

  .hero          { padding: 80px 20px 60px; }
  .section       { padding: 60px 20px; }
  .divider       { margin: 0 20px; }

  .experience-list li {
    grid-template-columns: 40px 1fr;
    gap: 16px;
  }
  .experience-list .date {
    grid-column: 2 / -1;
    padding-top: 8px;
  }

  .newsletter { padding: 60px 20px; }
  .numbers    { padding: 40px 20px; }
  .numbers-grid { grid-template-columns: repeat(2, 1fr); gap: 20px 24px; }
  .num-value  { font-size: 24px; }
  .footer     { padding: 30px 20px; }
  .footer .footer-left,
  .footer .footer-right { gap: 16px; }

  .projects-grid,
  .articles-grid,
  .skills-grid,
  .education-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .hero h1 { font-size: clamp(28px, 8vw, 44px); }
  .hero-sub { font-size: 16px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { text-align: center; }

  .nav-logo { font-size: 12px; letter-spacing: 2.5px; }
  .theme-btn { padding: 5px 8px; }

  .projects-controls input[type="search"],
  .articles-controls input,
  .articles-controls select { min-width: 0; }
}

@media (max-width: 420px) {
  .nav { padding: 0 14px; }
  .nav-right { gap: 10px; }
  .hero-meta { font-size: 10px; letter-spacing: 1.5px; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .projects-grid,
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}