:root {
  --navy: #16233F;
  --navy-2: #223759;
  --bronze: #A97C50;
  --bronze-light: #D9BE9A;
  --paper: #FAF9F7;
  --paper-2: #F1EFEA;
  --ink: #1B1B18;
  --ink-soft: #5B5C55;
  --line: rgba(27, 27, 24, 0.1);
  --radius-sm: 6px;
  --radius-md: 12px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Zilla Slab', Georgia, serif;
  margin: 0;
  color: var(--navy);
}

.skip-link {
  position: absolute;
  top: -60px;
  left: 1rem;
  background: var(--navy);
  color: #fff;
  padding: 0.7rem 1.1rem;
  border-radius: var(--radius-sm);
  z-index: 100;
  text-decoration: none;
  font-size: 0.88rem;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 1rem; }

/* Nav */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(250, 249, 247, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.brand-mark {
  font-family: 'Zilla Slab', serif;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.live-stamp {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--ink-soft);
  white-space: nowrap;
}

.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4CAF7D;
  box-shadow: 0 0 0 3px rgba(76, 175, 125, 0.18);
  animation: livePulse 2.4s ease-in-out infinite;
}

@keyframes livePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.site-nav-links {
  display: flex;
  gap: 1.75rem;
  margin-left: auto;
}

.site-nav-links a {
  color: var(--navy);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  opacity: 0.75;
  transition: opacity 0.15s ease;
}

.site-nav-links a:hover,
.site-nav-links a:focus-visible { opacity: 1; }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--navy);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}
.theme-toggle:hover { background: var(--paper-2); }
.theme-toggle:active { transform: scale(0.92); }
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--navy);
  display: block;
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
  min-height: 78vh;
}

.hero-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem 4vw;
  max-width: 620px;
}

.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--bronze);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 1rem;
}

.hero-text h1 {
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.hero-text h1 .accent { color: var(--bronze); }

.hero-role {
  font-size: 1.2rem;
  color: var(--ink-soft);
  margin: 1rem 0 0.9rem;
  font-weight: 500;
  min-height: 1.5em;
}

.rotating-tagline {
  display: inline-block;
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.rotating-tagline.fade-out { opacity: 0; transform: translateY(4px); }

.hero-summary {
  color: var(--ink-soft);
  max-width: 48ch;
  margin: 0 0 1.9rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 0.92rem;
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-2); }
.btn-ghost { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-ghost:hover { background: var(--paper-2); }

.hero-social { display: flex; gap: 0.7rem; }

.social-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.15s ease;
}
.social-icon:hover { background: var(--bronze); transform: translateY(-2px); }

.hero-photo {
  position: relative;
  overflow: hidden;
}
.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Sections */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

.section-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--bronze);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 0.7rem;
}

.section-title {
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  margin-bottom: 1.6rem;
}

/* About */
.about-text {
  color: var(--ink-soft);
  max-width: 68ch;
  font-size: 1.02rem;
  margin-bottom: 2.6rem;
}

.skill-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  border-top: 1px solid var(--line);
  padding-top: 2rem;
}

.skill-col h3 {
  font-size: 1rem;
  margin-bottom: 0.6rem;
}

.skill-col p {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin: 0;
}

/* Experience */
.exp-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.exp-card {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.5rem;
  padding: 1.7rem 0;
  border-bottom: 1px solid var(--line);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.exp-card.in-view { opacity: 1; transform: translateY(0); }
.exp-card:first-child { padding-top: 0; }

.exp-dates {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--bronze);
  padding-top: 0.2rem;
}

.exp-body h3 { font-size: 1.15rem; margin-bottom: 0.3rem; }

.exp-org {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin: 0 0 0.6rem;
  font-weight: 500;
}

.exp-highlight {
  color: var(--ink-soft);
  font-size: 0.94rem;
  margin: 0;
}

/* Achievements */
.cert-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
  margin-bottom: 1.5rem;
}

.cert-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  background: #fff;
}

.cert-kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--bronze);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 0.5rem;
}

.cert-card h3 { font-size: 1.05rem; margin-bottom: 0.4rem; }
.cert-meta { color: var(--ink-soft); font-size: 0.85rem; margin: 0; }

.badge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.badge-card {
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius-md);
  padding: 1.2rem;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}
.badge-card.in-view { opacity: 1; transform: translateY(0); }

.badge-issuer {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem;
  color: var(--bronze-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 0.5rem;
}
.badge-card h3 { color: #fff; font-size: 0.98rem; line-height: 1.3; margin-bottom: 0.4rem; }
.badge-meta { font-size: 0.78rem; color: #C7CCD6; margin: 0; }

.cert-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 2.6rem;
}

.cert-thumb {
  display: block;
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #fff;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.cert-thumb:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(22, 35, 63, 0.12);
}

.cert-thumb img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: top;
  display: block;
  border-bottom: 1px solid var(--line);
}

.cert-thumb-caption { padding: 0.85rem 0.9rem; }

.cert-thumb-title {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--navy);
  margin: 0 0 0.25rem;
}

.cert-thumb-issuer {
  font-size: 0.76rem;
  color: var(--ink-soft);
  margin: 0;
}

.citation-list {
  list-style: none;
  margin: 0 0 2.6rem;
  padding: 0;
}
.citation-list li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1.2rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}
.citation-list li:last-child { border-bottom: none; }
.citation-year {
  font-family: 'JetBrains Mono', monospace;
  color: var(--bronze);
  font-size: 0.82rem;
}
.citation-text { color: var(--ink-soft); font-size: 0.92rem; }

.project-mini {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.5rem;
  align-items: center;
  border: 1px solid var(--bronze);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #fff;
}
.project-mini img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 130px;
  display: block;
}
.project-mini > div { padding: 1.2rem 1.5rem 1.2rem 0; }
.project-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--bronze);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 0.4rem;
}
.project-mini h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.project-mini p { color: var(--ink-soft); font-size: 0.9rem; margin: 0; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2.2rem;
}
.contact-card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.2rem;
  border-radius: var(--radius-md);
  background: var(--navy);
  color: #fff;
  text-decoration: none;
  transition: background 0.15s ease;
}
.contact-card:hover { background: var(--navy-2); }
.contact-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bronze-light);
}
.contact-value { font-size: 0.95rem; word-break: break-word; }
.contact-card-static { cursor: default; }

/* Contact (dark) */
.contact-dark {
  max-width: none;
  background: var(--navy);
  padding: 5rem 1.5rem;
}

.contact-wrap {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-intro .section-eyebrow { color: var(--bronze-light); }

.section-title-dark {
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  color: #fff;
  margin-bottom: 1.1rem;
}

.contact-blurb {
  color: #C7CCD6;
  max-width: 42ch;
  margin: 0 0 1.6rem;
}

.contact-quick { display: flex; gap: 0.7rem; margin-bottom: 1.2rem; }

.social-icon-light {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  color: #fff;
}
.social-icon-light:hover { background: var(--bronze); border-color: var(--bronze); }

.contact-location {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: #C7CCD6;
  margin: 0 0 1.8rem;
}

.btn-outline-light {
  border: 1.5px solid #fff;
  color: #fff;
  background: transparent;
}
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.1); }

.contact-form { display: flex; flex-direction: column; gap: 1.1rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }

.form-group label {
  display: block;
  font-size: 0.82rem;
  color: #C7CCD6;
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 0.92rem;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--bronze-light);
}

.form-group textarea { resize: vertical; }

.btn-form-submit {
  background: #fff;
  color: var(--navy);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.5rem;
  font-weight: 600;
  font-size: 0.94rem;
  cursor: pointer;
  transition: background 0.15s ease;
  width: 100%;
}
.btn-form-submit:hover { background: var(--bronze-light); }

/* Footer */
.footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  color: var(--ink-soft);
  font-size: 0.82rem;
  border-top: 1px solid var(--line);
}

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--bronze);
  outline-offset: 2px;
}

/* Dark mode */
html { transition: background 0.2s ease; }
[data-theme="dark"] {
  --paper: #12182A;
  --paper-2: #1B2338;
  --ink: #E8EAE3;
  --ink-soft: #A6ABB6;
  --line: rgba(232, 234, 227, 0.14);
}
[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3 { color: #E8EAE3; }
[data-theme="dark"] .site-nav { background: rgba(18, 24, 42, 0.92); }
[data-theme="dark"] .site-nav-links a { color: #E8EAE3; }
[data-theme="dark"] .theme-toggle { color: #E8EAE3; }
[data-theme="dark"] .nav-toggle span { background: #E8EAE3; }
[data-theme="dark"] .cert-card { background: var(--paper-2); }
[data-theme="dark"] .cert-thumb { background: var(--paper-2); }
[data-theme="dark"] .btn-ghost { color: #E8EAE3; border-color: #E8EAE3; }
[data-theme="dark"] .btn-ghost:hover { background: var(--paper-2); }
[data-theme="dark"] .project-mini { background: var(--paper-2); }

/* Print */
@media print {
  .site-nav, .skip-link, .hero-actions, .hero-social, .nav-toggle,
  .theme-toggle, .live-stamp, .btn { display: none !important; }
  body { background: #fff; color: #000; }
  .section { border-top: 1px solid #ccc; padding: 1.2rem 0; }
  a { color: #000; text-decoration: underline; }
  .badge-card, .contact-card { background: #fff !important; color: #000 !important; border: 1px solid #999; }
  .badge-issuer, .badge-meta, .contact-label { color: #444 !important; }
}

/* Responsive */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-photo { height: 340px; order: -1; }
  .hero-text { max-width: none; padding: 2.5rem 1.5rem; }
  .skill-row { grid-template-columns: 1fr; gap: 1.4rem; }
  .exp-card { grid-template-columns: 1fr; gap: 0.4rem; }
  .cert-cards { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .project-mini { grid-template-columns: 1fr; }
  .project-mini img { min-height: 180px; }
  .project-mini > div { padding: 0 1.2rem 1.2rem; }
}

@media (max-width: 780px) {
  .site-nav-links { display: none; }
  .live-stamp { display: none; }
  .nav-toggle { display: flex; }
  .site-nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.5rem 1.5rem;
    gap: 1rem;
    margin-left: 0;
  }
}