:root {
  --engineering-black: #080D12;
  --graphite: #111820;
  --industrial-slate: #1B2731;
  --engineering-paper: #F4F6F8;
  --white: #FFFFFF;
  --soft-white: #E9EDF1;
  --primary-light: #F7F9FB;
  --secondary-light: #A7B2BC;
  --muted-light: #707D88;
  --dark-heading: #17212A;
  --dark-secondary: #667482;
  --engineering-blue: #2F80FF;
  --blue-hover: #4C96FF;
  --blue-dark: #1458C7;
  --tech-08: rgba(47, 128, 255, 0.08);
  --tech-12: rgba(47, 128, 255, 0.12);
  --tech-15: rgba(47, 128, 255, 0.15);
  --warm-paper: #E8E1D5;
  --line: rgba(27, 39, 49, 0.14);
  --shadow-soft: 0 18px 32px rgba(8, 13, 18, 0.08);
  --shadow-strong: 0 26px 55px rgba(8, 13, 18, 0.12);
  --radius-card: 14px;
  --radius-large: 22px;
  --container: 1280px;
}

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(47, 128, 255, 0.08), transparent 22rem),
    linear-gradient(180deg, var(--engineering-paper) 0%, #edf2f5 100%);
  color: var(--dark-heading);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.02em;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(90deg, transparent calc(50% - 0.5px), rgba(47, 128, 255, 0.08) 50%, transparent calc(50% + 0.5px));
  background-size: 120px 100%;
  opacity: 0.55;
  z-index: 0;
}

main, header, footer, section { position: relative; z-index: 1; }
img { display: block; max-width: 100%; }
a, button { transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease; }
::selection { background: rgba(47, 128, 255, 0.2); color: var(--dark-heading); }

.section-shell {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: clamp(1.1rem, 4vw, 4rem);
  padding-right: clamp(1.1rem, 4vw, 4rem);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 45;
  width: min(var(--container), calc(100% - 2rem));
  margin: 0 auto;
  height: 82px;
  background: rgba(244, 246, 248, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(8, 13, 18, 0.05);
}

.wordmark {
  color: var(--dark-heading);
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.12em;
  text-decoration: none;
}

.wordmark span { color: var(--engineering-blue); }

nav {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
}

nav a,
.header-cta,
.underlink {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
}

nav a {
  position: relative;
  color: var(--dark-heading);
}

nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.5rem;
  width: 100%;
  height: 1.5px;
  background: var(--engineering-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

nav a:hover::after,
nav a:focus-visible::after { transform: scaleX(1); }

.header-cta {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.9rem 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: linear-gradient(135deg, var(--graphite), var(--industrial-slate));
  color: var(--primary-light);
}

.header-cta:hover,
.header-cta:focus-visible {
  background: linear-gradient(135deg, var(--engineering-blue), var(--blue-dark));
  transform: translateY(-1px);
}

.header-cta b { color: var(--primary-light); font-size: 1rem; }

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.5);
  color: var(--dark-heading);
  border-radius: 999px;
  padding: 0.72rem 0.9rem;
  font: 700 0.7rem/1 "IBM Plex Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  align-items: center;
  gap: 0.7rem;
  margin-left: auto;
  cursor: pointer;
}

.menu-toggle span {
  width: 19px;
  height: 12px;
  position: relative;
  display: inline-block;
}

.menu-toggle span::before,
.menu-toggle span::after,
.menu-toggle span {
  background: var(--dark-heading);
  border-radius: 999px;
}

.menu-toggle span::before,
.menu-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
}

.menu-toggle span::before {
  top: 0;
  box-shadow: 0 5px 0 var(--dark-heading), 0 10px 0 var(--dark-heading);
}

.hero {
  min-height: calc(100vh - 82px);
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--engineering-black) 0%, #0d141a 100%);
  color: var(--primary-light);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(47, 128, 255, 0.06), rgba(47, 128, 255, 0.02)),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: auto, 56px 56px, 56px 56px;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  right: clamp(1rem, 5vw, 7rem);
  bottom: clamp(2rem, 5vw, 5rem);
  width: min(23vw, 300px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(47, 128, 255, 0.14), rgba(255, 255, 255, 0.01) 52%, transparent 70%);
  opacity: 0.9;
  pointer-events: none;
}

.hero-meta,
.hero-footer,
.eyebrow,
.hero-note,
.project-number,
.media-kind,
.archive-summary,
.contact .eyebrow,
.about .eyebrow,
.capability-list span,
.education-card > span,
.update-card-content .eyebrow {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-meta,
.hero-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.64rem;
  color: var(--primary-light);
}

.hero-copy {
  position: relative;
  max-width: 1180px;
  margin: clamp(2.5rem, 8vw, 7.5rem) auto 0;
  padding-left: clamp(0.2rem, 0.7vw, 0.8rem);
  padding-bottom: 0.8rem;
}

.hero-identity {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1.1rem;
}

.hero-avatar {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  padding: 4px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(47, 128, 255, 0.25), rgba(21, 50, 70, 0.08));
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 18px 38px rgba(21, 50, 70, 0.08);
}

.hero-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: 18px;
  display: block;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
}

.eyebrow {
  margin: 0;
  font-size: 0.68rem;
  color: var(--engineering-blue);
}

.hero h1,
.section-intro h2,
.about-copy h2,
.contact h2,
.archive-group-heading h3,
.media-card h3,
.project-info h3,
.update-card h3,
.education-card h3 {
  letter-spacing: -0.07em;
  margin: 0;
  color: var(--dark-heading);
}

.hero h1 {
  max-width: 12.5ch;
  margin-top: 1.1rem;
  margin-bottom: 2.5rem;
  font-size: clamp(3.5rem, 7vw, 7.5rem);
  line-height: 0.88;
  font-weight: 700;
  color: var(--primary-light);
}

.hero h1 em,
.section-intro h2 em,
.about-copy h2 em,
.contact h2 em {
  color: var(--engineering-blue);
  font-family: "Georgia", serif;
  font-style: italic;
  font-weight: 600;
}

.hero-detail {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 1.4rem;
}

.hero-detail p {
  max-width: 42rem;
  font-size: clamp(1.02rem, 1.5vw, 1.35rem);
  line-height: 1.7;
  color: rgba(247, 249, 251, 0.78);
}

.round-link {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-light), rgba(247, 249, 251, 0.72));
  color: var(--dark-heading);
  text-decoration: none;
  font-size: 2rem;
  box-shadow: var(--shadow-soft);
}

.round-link:hover,
.round-link:focus-visible {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 18px 32px rgba(21, 50, 70, 0.18);
}

.hero-credentials {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.8rem;
}

.hero-credentials span {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--primary-light);
  font: 700 0.62rem/1 "IBM Plex Mono", monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.15rem;
  margin-top: 1.45rem;
}

.hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 1.15rem;
  border-radius: 999px;
  background: var(--engineering-blue);
  color: #f7f9fb;
  font: 700 0.68rem/1 "IBM Plex Mono", monospace;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  box-shadow: var(--shadow-soft);
}

.hero-primary:hover,
.hero-primary:focus-visible {
  background: var(--blue-hover);
  transform: translateY(-2px);
}

.hero-primary span { color: var(--primary-light); }

.hero-note {
  color: rgba(247, 249, 251, 0.76);
  font-size: 0.62rem;
}

.ticker {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(135deg, var(--primary-light), #e9edf1);
  color: var(--dark-heading);
  overflow: hidden;
}

.ticker div {
  display: flex;
  gap: 1rem;
  white-space: nowrap;
  padding: 1rem 0;
  font: 700 0.76rem/1 "IBM Plex Mono", monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  animation: ticker 22s linear infinite;
}

@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.section-intro {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
}

.section-intro > div {
  display: grid;
  gap: 0.9rem;
}

.section-intro h2 {
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 0.98;
  color: var(--dark-heading);
}

.section-intro > p {
  max-width: 33rem;
  font-size: 1.02rem;
  color: var(--dark-secondary);
}

.update-grid,
.project-grid,
.capability-list,
.contact-grid,
.group-gallery {
  display: grid;
  gap: 1.3rem;
}

.update-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.update-card,
.project,
.media-card,
.capability-list > div {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-soft);
}

.update-card,
.project,
.media-card { overflow: hidden; }

.update-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.update-card:hover,
.project:hover,
.media-card:hover,
.capability-list > div:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-strong);
}

.update-card-media {
  position: relative;
  background: linear-gradient(135deg, rgba(47, 128, 255, 0.08), rgba(15, 29, 40, 0.02));
}

.update-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.update-card-fallback,
.media-fallback {
  display: none;
  place-items: center;
  min-height: 220px;
  padding: 1.25rem;
  text-align: center;
  font: 700 0.68rem/1.5 "IBM Plex Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary-light);
  background: linear-gradient(135deg, rgba(8, 13, 18, 0.96), rgba(17, 24, 32, 0.9));
}

.update-card-fallback span,
.media-fallback a {
  color: var(--engineering-blue);
}

.update-card-content { padding: 1.1rem 1rem 1.2rem; }

.update-card-content .eyebrow {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--engineering-blue);
}

.update-card h3 {
  font-size: clamp(1.35rem, 2vw, 2rem);
  margin-bottom: 0.55rem;
  line-height: 1.08;
  color: var(--dark-heading);
}

.update-card p { color: var(--dark-secondary); font-size: 0.95rem; }

.project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.project {
  position: relative;
  overflow: hidden;
  padding: 0.9rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.74), rgba(255,255,255,0.58));
}

.project-image {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 20px;
  background: #dfe7ef;
}

.project-image img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.project:hover .project-image img { transform: scale(1.03); }

.image-tag,
.image-arrow {
  position: absolute;
  z-index: 2;
}

.image-tag {
  left: 1rem;
  top: 1rem;
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--dark-heading);
  font: 700 0.62rem/1 "IBM Plex Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.image-arrow {
  right: 1rem;
  bottom: 1rem;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(8, 13, 18, 0.84);
  color: var(--primary-light);
  font-size: 1.35rem;
}

.project-info {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  padding: 1rem 0.35rem 0.15rem;
}

.project-number {
  color: var(--engineering-blue);
  margin-bottom: 0.35rem;
  font-size: 0.72rem;
}

.project-info h3 {
  font-size: clamp(1.55rem, 2.2vw, 2.1rem);
  line-height: 1;
  color: var(--dark-heading);
}

.project-info > p {
  color: var(--dark-secondary);
  font-size: 0.82rem;
  text-align: right;
  line-height: 1.5;
}

.project-wide { grid-column: span 2; }

.archive {
  background: #edf2f5;
  padding-top: clamp(3rem, 7vw, 6rem);
}

.archive-summary {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  padding: 1rem 1.2rem;
  margin: 1.2rem 0 2.3rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.48);
  color: var(--dark-heading);
  font-size: 0.66rem;
}

.archive-summary span { display: inline-flex; align-items: center; }
.archive-summary span:not(:last-child)::after { content: "�"; color: var(--engineering-blue); margin-left: 0.6rem; }

.archive-group {
  border-top: 1px solid var(--line);
  padding-top: clamp(2rem, 4vw, 4rem);
  margin-top: clamp(2rem, 5vw, 5rem);
}

.archive-group:first-child { border-top: 0; margin-top: 0; padding-top: 0; }

.archive-group-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
}

.archive-group-heading h3 {
  font-size: clamp(2rem, 3vw, 3.3rem);
  line-height: 0.95;
  margin-top: 0.8rem;
  color: var(--dark-heading);
}

.archive-group-heading > p {
  max-width: 21rem;
  color: var(--dark-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

.group-gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.media-card:nth-child(5n + 1) { grid-column: span 2; }

.media-frame {
  position: relative;
  background: #dfe4e8;
}

.media-frame img,
.media-frame video {
  width: 100%;
  height: 100%;
  min-height: 270px;
  object-fit: cover;
  display: block;
}

.media-kind { display: none; }

.media-card figcaption { padding: 1rem 0.95rem 1.1rem; }

.media-card figcaption h3 {
  font-size: 1.38rem;
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.media-card figcaption p {
  color: var(--dark-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* Landing-page V2: make the first screen and process feel like an engineering journal. */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: end;
}

.hero-visual {
  position: relative;
  align-self: center;
  min-height: 28rem;
  overflow: hidden;
  border: 1px solid rgba(247, 249, 251, 0.18);
  background: var(--graphite);
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(47, 128, 255, 0.18), transparent 42%);
  mix-blend-mode: screen;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 28rem;
  object-fit: cover;
  opacity: 0.88;
}

.hero-visual-label {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  z-index: 1;
  padding: 0.65rem 0.8rem;
  border-left: 2px solid var(--engineering-blue);
  background: rgba(8, 13, 18, 0.82);
  color: var(--primary-light);
  font: 600 0.62rem/1.55 "IBM Plex Mono", monospace;
  letter-spacing: 0.1em;
}

.hero-visual-label b { color: var(--engineering-blue); }

.hero-secondary {
  color: var(--primary-light);
  font: 700 0.72rem/1 "IBM Plex Mono", monospace;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.hero-secondary span { color: var(--engineering-blue); }

.process {
  padding-top: clamp(5rem, 10vw, 10rem);
  padding-bottom: clamp(5rem, 10vw, 10rem);
  background: var(--engineering-black);
  color: var(--primary-light);
}

.process .section-intro > p,
.process .eyebrow { color: var(--secondary-light); }

.process h2 { color: var(--primary-light); }

.process-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  margin: clamp(3rem, 7vw, 6rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(247, 249, 251, 0.2);
}

.process-list li {
  min-height: 13rem;
  padding: 1.25rem 1rem 0 0;
  border-right: 1px solid rgba(247, 249, 251, 0.2);
}

.process-list li:not(:first-child) { padding-left: 1rem; }
.process-list li:last-child { border-right: 0; }
.process-list li > span { color: var(--engineering-blue); font: 600 0.7rem/1 "IBM Plex Mono", monospace; }
.process-list h3 { margin: 3rem 0 0.5rem; color: var(--primary-light); font-size: clamp(1.35rem, 2vw, 2rem); }
.process-list p { max-width: 13rem; margin: 0; color: var(--secondary-light); font-size: 0.86rem; line-height: 1.65; }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; }
  .hero-visual { min-height: 20rem; order: -1; }
  .hero-visual img { min-height: 20rem; }
  .process-list { grid-template-columns: 1fr; }
  .process-list li,
  .process-list li:not(:first-child) {
    min-height: auto;
    padding: 1.2rem 0;
    border-right: 0;
    border-bottom: 1px solid rgba(247, 249, 251, 0.2);
  }
  .process-list li:last-child { border-bottom: 0; }
  .process-list h3 { margin-top: 0.9rem; }
}

  /* Reference screenshot direction: clean navy, blue, and editorial card system. */
  .reference-page {
    --ref-navy: #0B1420;
    --ref-panel: #132131;
    --ref-blue: #3D7DFF;
    --ref-blue-hover: #5C93FF;
    --ref-paper: #F4F6F8;
    --ref-white: #FFFFFF;
    --ref-body-dark: #C7D0DA;
    --ref-muted-dark: #8A97A6;
    --ref-heading: #111826;
    --ref-body: #5B6673;
    background: var(--ref-paper);
    color: var(--ref-heading);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: -0.02em;
  }

  .reference-page *,
  .reference-page *::before,
  .reference-page *::after { box-sizing: border-box; }
  .reference-page .hero-meta,
  .reference-page .hero-footer,
  .reference-page .eyebrow,
  .reference-page .media-kind,
  .reference-page .archive-summary,
  .reference-page .muted-note,
  .reference-page .project-number,
  .reference-page .capability-list span,
  .reference-page .education-card > span { font-family: inherit; }

  .reference-page .site-header {
    width: 100%;
    height: 76px;
    margin: 0;
    padding: 0 max(1.25rem, calc((100% - 1240px) / 2));
    display: flex;
    align-items: center;
    gap: 2rem;
    background: var(--ref-navy);
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .reference-page .wordmark { color: var(--ref-white); font-size: 1.7rem; letter-spacing: -0.1em; }
  .reference-page .wordmark span { color: var(--ref-blue); }
  .reference-page nav { position: static; transform: none; margin-left: auto; gap: clamp(1rem, 2.1vw, 2.1rem); }
  .reference-page nav a { color: var(--ref-body-dark); font-size: 0.78rem; letter-spacing: 0; text-transform: none; }
  .reference-page nav a:first-child { color: var(--ref-white); }
  .reference-page nav a:first-child::after { transform: scaleX(1); }
  .reference-page nav a::after { bottom: -0.45rem; background: var(--ref-blue); }
  .reference-page .header-cta { padding: 0.68rem 1rem; border: 1px solid var(--ref-blue); border-radius: 8px; background: transparent; color: var(--ref-white); font-size: 0.75rem; letter-spacing: 0; text-transform: none; }
  .reference-page .header-cta:hover { background: var(--ref-blue); }
  .reference-page .menu-toggle { color: var(--ref-white); border-color: rgba(255,255,255,.25); background: transparent; }
  .reference-page .menu-toggle span,
  .reference-page .menu-toggle span::before,
  .reference-page .menu-toggle span::after { background: var(--ref-white); }

  .reference-shell { width: min(1240px, calc(100% - 2.5rem)); margin: 0 auto; }
  .reference-hero { padding: clamp(4rem, 8vw, 7.5rem) 0 clamp(4rem, 7vw, 6.5rem); background: var(--ref-navy); color: var(--ref-white); }
  .reference-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, .82fr); gap: clamp(3rem, 7vw, 8rem); align-items: center; }
  .reference-eyebrow { margin: 0 0 1rem; color: var(--ref-muted-dark); font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
  .reference-hero .reference-eyebrow { color: var(--ref-blue); }
  .reference-hero h1 { max-width: 700px; margin: 0; color: var(--ref-white); font-size: clamp(3.1rem, 6.4vw, 6.3rem); line-height: .98; letter-spacing: -.075em; }
  .reference-hero h1 span,
  .reference-dark h2 span { color: var(--ref-blue); }
  .reference-lede { max-width: 620px; margin: 2rem 0 0; color: var(--ref-body-dark); font-size: clamp(1rem, 1.3vw, 1.15rem); line-height: 1.7; }
  .reference-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2rem; }
  .reference-button { display: inline-flex; align-items: center; gap: .7rem; padding: .9rem 1.15rem; border-radius: 8px; font-size: .8rem; font-weight: 700; text-decoration: none; }
  .reference-button span { font-size: 1.1rem; }
  .reference-button-primary { background: var(--ref-blue); color: var(--ref-white); }
  .reference-button-primary:hover { background: var(--ref-blue-hover); transform: translateY(-2px); }
  .reference-button-secondary { border: 1px solid rgba(199,208,218,.45); color: var(--ref-white); }
  .reference-button-secondary:hover { border-color: var(--ref-blue); color: var(--ref-blue); }
  .reference-text-link { display: inline-flex; gap: .45rem; align-items: center; margin-top: 1.3rem; color: var(--ref-blue); font-size: .85rem; font-weight: 700; text-decoration: none; }
  .reference-text-link:hover { color: var(--ref-blue-hover); }
  .reference-capabilities { display: grid; grid-template-columns: repeat(4, 1fr); gap: .8rem; margin-top: 3.3rem; }
  .reference-capabilities > div { display: flex; gap: .55rem; align-items: flex-start; color: var(--ref-white); font-size: .72rem; line-height: 1.35; }
  .reference-capabilities b { display: grid; width: 29px; height: 29px; place-items: center; flex: 0 0 auto; border-radius: 7px; background: var(--ref-panel); color: var(--ref-blue); font-size: 1rem; }
  .reference-capabilities small { color: var(--ref-body-dark); font-size: .72rem; }
  .reference-hero-media { position: relative; min-height: 530px; }
  .reference-hero-media > img { width: 100%; height: 530px; object-fit: cover; border-radius: 12px; }
  .reference-process-panel { position: absolute; top: 1.2rem; right: -2rem; display: grid; gap: .3rem; min-width: 190px; padding: 1.1rem; border-radius: 10px; background: var(--ref-panel); color: var(--ref-white); box-shadow: 0 18px 38px rgba(0,0,0,.2); }
  .reference-process-panel span { margin-bottom: .4rem; color: var(--ref-muted-dark); font-size: .58rem; font-weight: 700; letter-spacing: .12em; }
  .reference-process-panel strong { font-size: .78rem; }
  .reference-process-panel i { color: var(--ref-blue); font-style: normal; }
  .reference-media-caption { position: absolute; left: 1rem; bottom: 1rem; padding: .7rem .85rem; border-left: 2px solid var(--ref-blue); background: rgba(11,20,32,.82); color: var(--ref-white); font-size: .75rem; font-weight: 700; }
  .reference-media-caption span { color: var(--ref-body-dark); font-size: .64rem; font-weight: 400; }
  .reference-light { background: var(--ref-paper); }
  .reference-updates { padding: clamp(4rem, 8vw, 7rem) 0 2rem; }
  .reference-section-heading { display: flex; justify-content: space-between; gap: 2rem; align-items: end; margin-bottom: 2.5rem; }
  .reference-section-heading h2 { margin: 0; color: var(--ref-heading); font-size: clamp(2.2rem, 4.2vw, 4.5rem); line-height: .98; letter-spacing: -.07em; }
  .reference-section-heading h2 em,
  .reference-project-card h3 em { color: var(--ref-blue); font-style: normal; }
  .reference-section-heading > p { max-width: 380px; margin: 0; color: var(--ref-body); line-height: 1.65; }
  .reference-updates .update-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .reference-updates .update-card { background: var(--ref-white); border: 1px solid #E3E8EE; border-radius: 11px; box-shadow: none; }
  .reference-updates .update-card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(17,24,38,.08); }
  .reference-updates .update-card h3 { color: var(--ref-heading); }
  .reference-updates .update-card p { color: var(--ref-body); }
  .reference-projects { padding: 5rem 0 7rem; }
  .reference-dark-link { color: var(--ref-blue); }
  .reference-project-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
  .reference-project-card { overflow: hidden; border: 1px solid #E4E9EE; border-radius: 11px; background: var(--ref-white); }
  .reference-project-card > a { display: block; overflow: hidden; }
  .reference-project-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .3s ease; }
  .reference-project-card:hover img { transform: scale(1.03); }
  .reference-project-card > div { padding: 1.05rem; }
  .reference-card-index { margin: 0 0 .65rem; color: var(--ref-muted-dark); font-size: .62rem; font-weight: 700; letter-spacing: .1em; }
  .reference-project-card h3 { margin: 0 0 .65rem; color: var(--ref-heading); font-size: 1.25rem; letter-spacing: -.04em; }
  .reference-project-card p:not(.reference-card-index) { min-height: 4.8rem; margin: .8rem 0; color: var(--ref-body); font-size: .84rem; line-height: 1.55; }
  .reference-tags { display: flex; flex-wrap: wrap; gap: .35rem; }
  .reference-tags span { padding: .28rem .45rem; border-radius: 5px; background: #EEF1F4; color: var(--ref-body); font-size: .62rem; }
  .reference-project-card > div > a { color: var(--ref-blue); font-size: .78rem; font-weight: 700; text-decoration: none; }
  .reference-skills { padding: clamp(4rem, 8vw, 7rem) 0; background: var(--ref-navy); color: var(--ref-white); }
  .reference-skills .reference-section-heading h2 { color: var(--ref-white); }
  .reference-skills .reference-section-heading > p { color: var(--ref-body-dark); }
  .reference-skills .reference-eyebrow,
  .reference-contact .reference-eyebrow { color: var(--ref-blue); }
  .reference-skill-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
  .reference-skill-grid article { padding: 1.5rem; border: 1px solid rgba(199,208,218,.15); border-radius: 10px; background: rgba(19,33,49,.68); }
  .reference-skill-grid article > b { color: var(--ref-blue); font-size: .75rem; }
  .reference-skill-grid h3 { margin: 2.6rem 0 1.2rem; color: var(--ref-white); font-size: 1.4rem; }
  .reference-skill-grid ul { display: grid; gap: .75rem; margin: 0; padding: 0; color: var(--ref-body-dark); list-style: none; font-size: .9rem; }
  .reference-skill-grid li::before { content: "—"; margin-right: .6rem; color: var(--ref-blue); }
  .reference-about { padding: clamp(4rem, 8vw, 8rem) 0; }
  .reference-about-grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1fr); gap: clamp(3rem, 8vw, 9rem); align-items: center; }
  .reference-about-image img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 12px; }
  .reference-about h2 { margin: 0 0 1.5rem; color: var(--ref-heading); font-size: clamp(2.3rem, 4.5vw, 4.7rem); line-height: .98; letter-spacing: -.07em; }
  .reference-about h2 em { color: var(--ref-blue); font-style: normal; }
  .reference-about > .reference-shell > div > p:not(.reference-eyebrow) { color: var(--ref-body); line-height: 1.7; }
  .reference-archive { padding: 1rem 0 7rem; }
  .reference-contact { padding: clamp(4rem, 8vw, 7rem) 0 1rem; background: var(--ref-navy); color: var(--ref-white); }
  .reference-contact h2 { margin: 0 0 1.4rem; color: var(--ref-white); font-size: clamp(2.4rem, 5vw, 5rem); line-height: .98; letter-spacing: -.07em; }
  .reference-contact p:not(.reference-eyebrow) { max-width: 420px; color: var(--ref-body-dark); line-height: 1.7; }
  .reference-contact-grid { display: grid; grid-template-columns: 1fr .8fr; gap: 4rem; align-items: center; }
  .reference-contact-image img { width: 100%; height: 300px; object-fit: cover; border-radius: 12px; opacity: .82; }
  .reference-contact-links { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1rem; }
  .reference-contact-links a { color: var(--ref-body-dark); font-size: .78rem; text-decoration: none; }
  .reference-contact-links a:hover { color: var(--ref-blue); }
  .reference-contact footer { display: flex; justify-content: space-between; gap: 1rem; margin-top: 6rem; padding-top: 1rem; border-top: 1px solid rgba(199,208,218,.15); color: var(--ref-muted-dark); font-size: .72rem; }
  .reference-contact footer a { color: var(--ref-body-dark); text-decoration: none; }

  @media (max-width: 900px) {
    .reference-page .site-header { padding: 0 1.25rem; }
    .reference-page nav { position: absolute; left: 1rem; right: 1rem; top: 70px; transform: none; display: none; padding: 1rem; background: var(--ref-panel); }
    .reference-page nav.open { display: grid; }
    .reference-page .menu-toggle { display: inline-flex; margin-left: auto; }
    .reference-page .header-cta { display: none; }
    .reference-hero-grid, .reference-about-grid, .reference-contact-grid { grid-template-columns: 1fr; }
    .reference-hero-media { order: -1; min-height: 340px; }
    .reference-hero-media > img { height: 340px; }
    .reference-process-panel { right: 1rem; }
    .reference-project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .reference-skill-grid { grid-template-columns: 1fr; }
  }

  @media (max-width: 600px) {
    .reference-shell { width: min(100% - 2rem, 1240px); }
    .reference-hero { padding-top: 3.5rem; }
    .reference-hero h1 { font-size: clamp(2.7rem, 13vw, 4.4rem); }
    .reference-capabilities { grid-template-columns: repeat(2, 1fr); }
    .reference-section-heading { display: block; }
    .reference-section-heading > p { margin-top: 1.25rem; }
    .reference-project-grid { grid-template-columns: 1fr; }
    .reference-project-card p:not(.reference-card-index) { min-height: 0; }
    .reference-contact footer { display: grid; margin-top: 4rem; }
  }

  /* Anti-AI refinement: reduce decoration and let the work, type, and contact details lead. */
  .reference-page {
    --ref-blue: #5275a6;
    --ref-blue-hover: #6b8dbd;
    --ref-paper: #f5f3ef;
    --ref-heading: #20252a;
    --ref-body: #596168;
  }

  .reference-page .reference-hero {
    background: #171b20;
  }

  .reference-page .reference-hero h1 span,
  .reference-page .reference-dark h2 span {
    color: inherit;
  }

  .reference-page .reference-section-heading h2 em,
  .reference-page .reference-about h2 em {
    color: inherit;
  }

  .reference-page .reference-hero-media > img,
  .reference-page .reference-about-image img,
  .reference-page .reference-contact-image img {
    border-radius: 2px;
  }

  .reference-page .reference-process-panel,
  .reference-page .reference-media-caption {
    display: none;
  }

  .reference-page .reference-button,
  .reference-page .header-cta,
  .reference-page .reference-project-card,
  .reference-page .reference-skill-grid article {
    border-radius: 3px;
  }

  .reference-page .reference-project-card {
    box-shadow: none;
  }

  .reference-page .reference-project-card:hover img {
    transform: none;
  }

  .reference-page .reference-updates .update-card:hover {
    transform: none;
    box-shadow: none;
  }

  .reference-page .reference-button-primary:hover {
    transform: none;
  }

  .reference-page .reference-tags span {
    border-radius: 2px;
  }

  .reference-page .reference-contact {
    background: #171b20;
  }

  .reference-contact-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid rgba(199, 208, 218, .25);
  }

  .reference-contact-list a {
    display: grid;
    gap: .25rem;
    padding: 1rem .8rem 1rem 0;
    border-bottom: 1px solid rgba(199, 208, 218, .25);
    color: var(--ref-white);
    text-decoration: none;
  }

  .reference-contact-list a:nth-child(even) {
    padding-left: .8rem;
    border-left: 1px solid rgba(199, 208, 218, .25);
  }

  .reference-contact-list span {
    color: var(--ref-muted-dark);
    font-size: .65rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
  }

  .reference-contact-list strong {
    font-size: .92rem;
    font-weight: 600;
  }

  .reference-contact-list small {
    color: var(--ref-body-dark);
    font-size: .72rem;
  }

  .reference-contact-list a:hover strong {
    color: var(--ref-blue-hover);
  }

  .reference-page .reference-capabilities b {
    border-radius: 2px;
    background: transparent;
    border: 1px solid rgba(199, 208, 218, .3);
    color: var(--ref-body-dark);
    font-size: .62rem;
    letter-spacing: .05em;
  }

  /* The hero uses the portrait as part of the page's composition, not as a card. */
  .reference-page .reference-hero {
    overflow: hidden;
    position: relative;
  }

  .reference-page .reference-hero::after {
    position: absolute;
    right: 0;
    bottom: -1px;
    left: 0;
    height: 4.5rem;
    background: var(--ref-paper);
    clip-path: polygon(62% 100%, 100% 0, 100% 100%);
    content: "";
    pointer-events: none;
  }

  .reference-page .reference-hero-grid {
    position: relative;
    grid-template-columns: minmax(0, .95fr) minmax(430px, 1.05fr);
    gap: clamp(1rem, 4vw, 4rem);
    align-items: stretch;
  }

  .reference-page .reference-hero-copy {
    position: relative;
    z-index: 1;
    align-self: center;
    padding: 2rem 0 3rem;
  }

  .reference-page .reference-hero-media {
    min-height: 650px;
    margin: -2rem max(-10vw, -7rem) -4rem 0;
    overflow: visible;
  }

  .reference-page .reference-hero-media > img {
    width: calc(100% + 4rem);
    height: 700px;
    margin-left: -1rem;
    border-radius: 0;
    object-position: center 24%;
    transform: translateY(1.5rem);
    transition: transform 700ms cubic-bezier(.2, .75, .25, 1), filter 700ms ease;
  }

  .reference-page .reference-hero-media:hover > img {
    transform: translateY(1.5rem) scale(1.01);
    filter: brightness(1.03);
  }

  .reference-page .reference-hero-identity {
    position: absolute;
    right: 3.5rem;
    bottom: 1.5rem;
    display: grid;
    gap: .2rem;
    margin: 0;
    padding-left: .8rem;
    border-left: 1px solid rgba(255, 255, 255, .45);
    color: var(--ref-body-dark);
    font-size: .62rem;
    letter-spacing: .1em;
    line-height: 1.45;
    text-transform: uppercase;
  }

  .reference-page .reference-hero-identity strong {
    color: var(--ref-white);
    font-size: .68rem;
    letter-spacing: .14em;
  }

  .reference-page .reference-hero-scroll {
    display: inline-flex;
    align-items: center;
    gap: .65rem;
    margin-top: 2.2rem;
    color: var(--ref-body-dark);
    font-size: .62rem;
    letter-spacing: .13em;
    text-decoration: none;
    text-transform: uppercase;
  }

  .reference-page .reference-hero-scroll b {
    color: var(--ref-blue);
    font-size: 1rem;
    font-weight: 400;
  }

  .reference-page .reference-hero-scroll:hover {
    color: var(--ref-white);
  }

  .reference-page .reference-hero-copy > * {
    opacity: 0;
    animation: reference-hero-rise 600ms cubic-bezier(.2, .75, .25, 1) forwards;
  }

  .reference-page .reference-hero-copy > :nth-child(1) { animation-delay: 100ms; }
  .reference-page .reference-hero-copy > :nth-child(2) { animation-delay: 180ms; }
  .reference-page .reference-hero-copy > :nth-child(3) { animation-delay: 280ms; }
  .reference-page .reference-hero-copy > :nth-child(4) { animation-delay: 360ms; }
  .reference-page .reference-hero-copy > :nth-child(5) { animation-delay: 440ms; }
  .reference-page .reference-hero-copy > :nth-child(6) { animation-delay: 500ms; }
  .reference-page .reference-hero-media > img {
    opacity: 0;
    animation: reference-hero-image 700ms 380ms cubic-bezier(.2, .75, .25, 1) forwards;
  }
  .reference-page .reference-hero-identity {
    opacity: 0;
    animation: reference-hero-rise 500ms 620ms cubic-bezier(.2, .75, .25, 1) forwards;
  }

  @keyframes reference-hero-rise {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: translateY(0); }
  }

  @keyframes reference-hero-image {
    from { opacity: 0; transform: translateY(3rem); }
    to { opacity: 1; transform: translateY(1.5rem); }
  }

  @media (prefers-reduced-motion: reduce) {
    .reference-page .reference-hero-copy > *,
    .reference-page .reference-hero-media > img,
    .reference-page .reference-hero-identity {
      opacity: 1;
      animation: none;
    }
  }

  /* Final editorial composition: the photograph crosses the hero grid instead of
     occupying an independent image column. */
  @media (min-width: 601px) {
    .reference-page .reference-hero {
      min-height: 760px;
      padding: clamp(4rem, 7vw, 6.5rem) 0 5.5rem;
    }

    .reference-page .reference-hero-grid {
      display: block;
      min-height: 650px;
    }

    .reference-page .reference-hero-copy {
      width: min(58%, 690px);
      min-height: 650px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 2rem 0 4rem;
    }

    .reference-page .reference-hero-copy .reference-lede {
      max-width: 400px;
    }

    .reference-page .reference-hero-media {
      position: absolute;
      top: -2rem;
      right: max(-10vw, -7rem);
      bottom: -4rem;
      left: 34%;
      min-height: 0;
      margin: 0;
      z-index: 0;
      overflow: visible;
    }

    .reference-page .reference-hero-media > img {
      width: 100%;
      height: 760px;
      margin: 0;
      object-position: center 22%;
      clip-path: polygon(18% 0, 100% 0, 100% 100%, 34% 100%, 12% 75%, 12% 18%);
      transform: translateY(1.5rem);
    }

    .reference-page .reference-hero-media:hover > img {
      transform: translateY(1.5rem) scale(1.01);
    }

    .reference-page .reference-hero-identity {
      right: 4rem;
      bottom: 4.5rem;
      z-index: 1;
    }

    .reference-page .reference-hero-copy > :not(.reference-capabilities):not(.reference-hero-scroll) {
      position: relative;
      z-index: 2;
    }

    .reference-page .reference-capabilities {
      position: relative;
      z-index: 2;
      width: 112%;
    }
  }

  @media (min-width: 601px) and (max-width: 900px) {
    .reference-page .reference-hero-media {
      left: 40%;
      right: -4rem;
    }

    .reference-page .reference-hero-copy {
      width: 64%;
    }
  }

  @media (max-width: 600px) {
    .reference-page .reference-hero-grid {
      min-height: 0;
    }

    .reference-page .reference-hero-media {
      position: relative;
      left: auto;
      right: auto;
      top: auto;
      bottom: auto;
      z-index: auto;
    }

    .reference-page .reference-hero-media > img {
      clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
  }

  @media (max-width: 600px) {
    .reference-page .reference-hero {
      padding-top: 3.5rem;
    }

    .reference-page .reference-hero::after {
      height: 2.5rem;
      clip-path: polygon(35% 100%, 100% 0, 100% 100%);
    }

    .reference-page .reference-hero-grid {
      display: flex;
      flex-direction: column;
      gap: 0;
    }

    .reference-page .reference-hero-copy {
      padding: 0 0 2rem;
    }

    .reference-page .reference-hero-media {
      width: calc(100% + 2.5rem);
      min-height: 430px;
      margin: 0 -1.25rem -2rem;
    }

    .reference-page .reference-hero-media > img {
      width: 100%;
      height: 500px;
      margin: 0;
      object-position: center 20%;
    }

    .reference-page .reference-hero-identity {
      right: 1.25rem;
      bottom: 1.5rem;
    }

    .reference-contact-list {
      grid-template-columns: 1fr;
    }

    .reference-contact-list a:nth-child(even) {
      padding-left: 0;
      border-left: 0;
    }
  }
.about {
  margin-top: clamp(3rem, 7vw, 7rem);
  padding-top: clamp(3.5rem, 8vw, 6rem);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
  background: linear-gradient(135deg, var(--engineering-black), var(--graphite));
  color: var(--primary-light);
}

.about-grid {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}

.portrait {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.portrait img {
  width: 100%;
  max-width: 360px;
  min-height: 440px;
  object-fit: cover;
  object-position: center top;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 28px 48px rgba(11, 20, 28, 0.18);
}

.portrait span {
  display: inline-flex;
  width: fit-content;
  padding: 0.65rem 0.9rem;
  border-radius: 999px;
  background: var(--engineering-blue);
  color: var(--primary-light);
  font: 700 0.64rem/1 "IBM Plex Mono", monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.about-copy h2 {
  font-size: clamp(2.2rem, 4vw, 4rem);
  color: var(--primary-light);
  line-height: 0.96;
  margin-bottom: 1.1rem;
}

.about-copy p {
  max-width: 42rem;
  color: rgba(247, 249, 251, 0.76);
  font-size: 1.02rem;
  line-height: 1.8;
}

.about-copy p + p { margin-top: 1rem; }

.underlink {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  color: var(--primary-light);
}

.education-card {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem 2rem;
  padding: 1.2rem 1.35rem;
  margin-top: 2.5rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-large);
  background: rgba(255, 255, 255, 0.06);
  color: var(--primary-light);
}

.education-card .eyebrow { color: var(--engineering-blue); }

.education-card h3 {
  font-size: clamp(1.3rem, 2vw, 2rem);
  line-height: 1.2;
  color: var(--primary-light);
}

.education-card p {
  margin-top: 0.3rem;
  color: rgba(247, 249, 251, 0.8);
}

.education-card > span {
  justify-self: end;
  color: var(--engineering-blue);
  font: 700 0.62rem/1 "IBM Plex Mono", monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.capabilities {
  padding-top: clamp(3rem, 7vw, 6rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
  background: #eaf0f4;
}

.capability-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 2rem;
}

.capability-list > div {
  padding: 1.5rem 1.2rem;
  background: rgba(255, 255, 255, 0.42);
}

.capability-list span { color: var(--engineering-blue); }

.capability-list h3 {
  margin-top: 0.8rem;
  font-size: 1.55rem;
  line-height: 1.1;
  color: var(--dark-heading);
}

.capability-list p {
  margin-top: 0.7rem;
  color: var(--dark-secondary);
  line-height: 1.7;
}

.capability-list b {
  display: inline-flex;
  margin-top: 1rem;
  color: var(--engineering-blue);
  font-size: 1.4rem;
}

.contact {
  padding-top: clamp(3rem, 7vw, 5rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
  background: linear-gradient(135deg, #0f1d28 0%, var(--engineering-black) 42%, var(--industrial-slate) 100%);
  color: var(--primary-light);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(47,128,255,0.08), transparent 38%, rgba(255,255,255,0.02));
  pointer-events: none;
}

.contact-main {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: end;
  margin-bottom: 1.75rem;
}

.contact h2 {
  font-size: clamp(2.2rem, 4vw, 4rem);
  color: var(--primary-light);
  line-height: 0.96;
}

.contact-main p {
  max-width: 32rem;
  color: rgba(247,249,251,0.8);
  font-size: 1rem;
  line-height: 1.7;
}

.contact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.contact-card {
  position: relative;
  display: grid;
  grid-template-columns: 3.2rem minmax(0, 1fr) auto;
  gap: 0.9rem;
  align-items: center;
  min-height: 5.7rem;
  padding: 1rem 1rem 1rem 0.9rem;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.96);
  color: var(--dark-heading);
  text-decoration: none;
  box-shadow: var(--shadow-soft);
}

.contact-card:hover { transform: translateY(-2px); }

.contact-card b {
  display: block;
  font-size: 0.95rem;
  color: var(--dark-heading);
}

.contact-card small {
  display: block;
  margin-top: 0.2rem;
  color: var(--dark-secondary);
  font: 500 0.7rem/1.4 "IBM Plex Mono", monospace;
  overflow-wrap: anywhere;
}

.contact-card i { color: var(--engineering-blue); font-style: normal; font-size: 1.25rem; }

.contact-icon {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: #e7ece9;
  color: var(--dark-heading);
}

.contact-icon svg {
  width: 1.4rem;
  height: 1.4rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.whatsapp-logo { background: #dfeee3; color: #177147; }
.icloud-logo { background: #e1f0fb; color: #1e7cc0; }
.linkedin-logo { background: #e1e9f8; color: #0a66c2; }
.github-logo { background: #e1e1e1; color: #24292f; }

@media (max-width: 980px) {
  .project-grid,
  .capability-list,
  .update-grid,
  .group-gallery { grid-template-columns: 1fr 1fr; }
  .project-wide { grid-column: span 2; }
  .about-grid { grid-template-columns: 1fr; }
  .education-card { grid-template-columns: 1fr; align-items: start; }
  .education-card > span { justify-self: start; }
}

@media (max-width: 760px) {
  .site-header {
    width: calc(100% - 1rem);
    padding: 0 0.7rem;
  }

  .menu-toggle { display: inline-flex; }

  nav {
    display: none;
    position: absolute;
    top: calc(100% + 0.45rem);
    left: 0.5rem;
    right: 0.5rem;
    transform: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
    padding: 0.5rem;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: rgba(247, 243, 238, 0.98);
    box-shadow: var(--shadow-strong);
    z-index: 60;
  }

  nav.open { display: flex; }
  nav a {
    padding: 0.8rem 0.9rem;
    border-radius: 12px;
    background: rgba(22, 45, 63, 0.02);
  }

  nav a::after { display: none; }
  .header-cta { display: none; }

  .hero { padding-top: 1.5rem; }
  .hero-meta,
  .hero-footer,
  .section-intro,
  .archive-group-heading,
  .contact-main { display: block; }
  .hero-detail { display: block; }
  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.9rem;
  }
  .round-link { margin-top: 1rem; }
  .hero h1 { max-width: 100%; }
  .section-intro { margin-bottom: 1.3rem; }
  .section-intro > p { margin-top: 0.8rem; }
  .update-grid,
  .project-grid,
  .capability-list,
  .group-gallery,
  .contact-grid { grid-template-columns: 1fr; }
  .project-wide { grid-column: span 1; }
  .media-card:nth-child(5n + 1) { grid-column: span 1; }
  .archive-summary { border-radius: 20px; }
  .contact-card { grid-template-columns: 3rem 1fr auto; }
}