/* AEON Lab — design system stylesheet
   Avionics / cockpit aesthetic. Deep navy, amber + cyan accents.
   Space Grotesk (display + body), IBM Plex Mono (nav/labels/data/chrome). */

/* ---------- fonts (self-hosted) ---------- */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('../fonts/space-grotesk-variable.woff2') format('woff2');
}

@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/ibm-plex-mono-400.woff2') format('woff2');
}

@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/ibm-plex-mono-500.woff2') format('woff2');
}

@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/ibm-plex-mono-600.woff2') format('woff2');
}

/* ---------- tokens ---------- */
:root {
  --navy-950: #05070d;
  --navy-900: #0a0f1c;
  --navy-800: #121a2e;
  --navy-700: #1c2740;
  --navy-600: #2a3757;

  --amber: #ffb020;
  --amber-dim: #b8801c;
  --cyan: #4dd8e6;
  --cyan-dim: #2a8a94;

  --text-primary: #eef2f8;
  --text-secondary: #9aa7bd;
  --text-tertiary: #5f6c85;

  --font-display: 'Space Grotesk', -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --container-width: 72rem;
}

/* ---------- reset ---------- */
* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--navy-950);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.6em;
}

h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
}

h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.75rem);
}

p {
  margin: 0 0 1.2em;
  color: var(--text-secondary);
  max-width: 68ch;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- mono / chrome utilities ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin: 0 0 1rem;
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  letter-spacing: 0.02em;
  margin: 0 0 1.5rem;
}

.breadcrumb a {
  color: var(--text-secondary);
}

.breadcrumb a:hover {
  color: var(--cyan);
}

.breadcrumb .sep {
  color: var(--amber-dim);
  margin: 0 0.5em;
}

/* ---------- header ---------- */
.site-header {
  background: var(--navy-900);
  border-bottom: 1px solid var(--navy-700);
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.site-header .brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-header .brand img {
  height: 2.25rem;
  width: auto;
}

.site-header .brand-text {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: var(--text-primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--navy-700);
  border-radius: 0.25rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
}

.site-nav ul {
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding-bottom: 0.35rem;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover {
  color: var(--cyan);
}

.site-nav a.active {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--navy-700);
  background: var(--navy-900);
  margin-top: 5rem;
  padding: 2.5rem 0;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-footer p {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin: 0;
}

.site-footer a {
  color: var(--cyan);
}

.site-footer a:hover {
  color: var(--amber);
}

.site-footer .copyright {
  color: var(--text-tertiary);
  font-size: 0.75rem;
}

/* ---------- page header ---------- */
.page-header {
  padding: 4rem 0 3rem;
  border-bottom: 1px solid var(--navy-700);
}

.page-header .intro {
  font-size: 1.05rem;
}

/* ---------- under-construction panel ---------- */
.construction-section {
  padding: 4rem 0 7rem;
}

.construction-panel {
  max-width: 32rem;
  margin: 0 auto;
  text-align: center;
  border: 1px solid var(--navy-700);
  border-radius: 0.4rem;
  background: var(--navy-900);
  padding: 3rem 2.5rem;
}

.construction-panel .construction-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  border: 1px solid var(--amber-dim);
  border-radius: 0.2rem;
  padding: 0.25rem 0.75rem;
  margin-bottom: 1.4rem;
}

.construction-panel h2 {
  margin-bottom: 1rem;
}

.construction-panel p {
  margin: 0 auto;
  max-width: 32ch;
}

/* ---------- research grid / card ---------- */
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr));
  gap: 1.25rem;
  padding: 3rem 0 5rem;
}

.research-card {
  display: flex;
  flex-direction: column;
  background: var(--navy-900);
  border: 1px solid var(--navy-700);
  border-radius: 0.4rem;
  padding: 1.75rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.research-card:hover {
  border-color: var(--cyan-dim);
  transform: translateY(-2px);
}

.research-card .designator {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--amber);
  margin-bottom: 0.9rem;
}

.research-card h2 {
  font-size: 1.25rem;
  margin-bottom: 0.6rem;
}

.research-card p {
  font-size: 0.92rem;
  flex-grow: 1;
}

.research-card .view-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-top: 1rem;
}

.research-card:hover .view-link {
  color: var(--amber);
}

/* ---------- article body ---------- */
.article {
  padding: 0 0 4rem;
}

.article .body-copy {
  max-width: 68ch;
  padding-top: 2.5rem;
}

.article .body-copy p {
  color: var(--text-secondary);
}

.article .body-copy a {
  color: var(--cyan);
}

.article .body-copy a:hover {
  text-decoration: underline;
}

.article .post-image {
  max-width: 68ch;
  margin: 2rem 0;
  border: 1px solid var(--navy-700);
  border-radius: 0.4rem;
  overflow: hidden;
}

.article .post-image img {
  width: 100%;
  display: block;
}

/* ---------- funding placard ---------- */
.placard {
  margin: 2.5rem 0;
  max-width: 68ch;
  border: 1px solid var(--navy-700);
  border-left: 3px solid var(--cyan);
  border-radius: 0.25rem;
  background: var(--navy-900);
  padding: 1.25rem 1.5rem;
}

.placard .label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.6rem;
}

.placard p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.placard a {
  color: var(--amber);
}

.placard a:hover {
  text-decoration: underline;
}

/* ---------- associated publications ---------- */
.pub-section {
  margin: 2.5rem 0;
  max-width: 68ch;
}

.pub-section h2 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 1.1rem;
}

.pub-section h3 {
  font-size: 1.05rem;
  margin: 2rem 0 0.8rem;
}

.pub-list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.pub-list li {
  border-left: 2px solid var(--navy-700);
  padding-left: 1rem;
}

.pub-list .pub-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.35rem;
}

.pub-type {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.12rem 0.45rem;
  border-radius: 0.15rem;
  border: 1px solid var(--navy-700);
  color: var(--text-tertiary);
}

.pub-type-journal {
  color: var(--cyan);
  border-color: var(--cyan-dim);
}

.pub-type-conference {
  color: var(--amber);
  border-color: var(--amber-dim);
}

/* ---------- publications archive: TOC ---------- */
.pub-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 2rem 0 0;
}

.pub-toc a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  border: 1px solid var(--navy-700);
  border-radius: 0.25rem;
  padding: 0.3rem 0.75rem;
}

.pub-toc a:hover {
  color: var(--cyan);
  border-color: var(--cyan-dim);
}

.scholar-note {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin-top: 0.75rem;
}

.scholar-note a {
  color: var(--cyan);
}

.scholar-note a:hover {
  color: var(--amber);
}

.pub-list p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.pub-list a {
  color: var(--cyan);
}

.pub-list a:hover {
  text-decoration: underline;
}

/* ---------- back link ---------- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-top: 1rem;
}

.back-link:hover {
  color: var(--cyan);
}

/* ---------- people: sections ---------- */
.section-block {
  padding: 3rem 0;
  border-top: 1px solid var(--navy-700);
}

.section-block:first-of-type {
  border-top: none;
  padding-top: 3.5rem;
}

.section-block h2 {
  margin-bottom: 0.4rem;
}

.section-count {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 2rem;
}

/* ---------- people: PI feature card ---------- */
.pi-card {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
  align-items: flex-start;
}

.pi-card .photo-frame {
  flex: 0 0 auto;
  width: 11rem;
}

.pi-card .photo-frame img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border: 1px solid var(--navy-700);
  border-radius: 0.4rem;
}

.pi-card .pi-body {
  flex: 1 1 22rem;
  min-width: 16rem;
}

.role-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1rem;
}

.person-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  margin-bottom: 1.2rem;
}

.person-links a {
  color: var(--text-secondary);
}

.person-links a:hover {
  color: var(--cyan);
}

/* ---------- people: grid + card ---------- */
.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.5rem;
}

.person-card {
  display: flex;
  flex-direction: column;
  background: var(--navy-900);
  border: 1px solid var(--navy-700);
  border-radius: 0.4rem;
  padding: 1.5rem;
}

.person-card .photo-frame {
  width: 5rem;
  height: 5rem;
  margin-bottom: 1rem;
}

.person-card .photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0.3rem;
  border: 1px solid var(--navy-700);
}

.avatar-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy-800);
  border-radius: 0.3rem;
  border: 1px solid var(--navy-700);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--text-tertiary);
}

.person-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.2rem;
}

.person-card .role-label {
  font-size: 0.72rem;
  margin-bottom: 0.7rem;
}

.badge {
  display: inline-block;
  width: fit-content;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--amber);
  border: 1px solid var(--amber-dim);
  border-radius: 0.2rem;
  padding: 0.18rem 0.5rem;
  margin-bottom: 0.8rem;
}

.person-card p {
  font-size: 0.88rem;
  margin-bottom: 0.9rem;
}

.person-card .person-links {
  margin-top: auto;
  margin-bottom: 0;
  font-size: 0.74rem;
}

/* ---------- people: previous members table ---------- */
.table-wrap {
  overflow-x: auto;
}

.alumni-table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.alumni-table th,
.alumni-table td {
  text-align: left;
  padding: 0.8rem 1rem 0.8rem 0;
  border-bottom: 1px solid var(--navy-700);
}

.alumni-table th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.alumni-table td {
  color: var(--text-secondary);
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  height: 88vh;
  min-height: 34rem;
  max-height: 54rem;
  overflow: hidden;
  background: var(--navy-950);
}

.hero video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 7, 13, 0.6) 0%, rgba(5, 7, 13, 0.2) 40%, rgba(5, 7, 13, 0.8) 100%);
  pointer-events: none;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2.5rem 0;
}

.hero-identity h1 {
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  margin: 0.5rem 0 0;
  max-width: 30ch;
}

/* HUD readouts */
.hud-readouts {
  position: absolute;
  top: 6.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: right;
  z-index: 2;
}

.hud-readout {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  background: rgba(10, 15, 28, 0.5);
  border: 1px solid var(--navy-700);
  border-radius: 0.2rem;
  padding: 0.3rem 0.6rem;
}

.hud-readout.amber {
  color: var(--amber);
}

.hud-readout .hud-label {
  color: var(--text-tertiary);
  margin-right: 0.6em;
}

/* hero logo watermark */
.hero-logo-mark {
  position: absolute;
  top: 6.5rem;
  right: 1.5rem;
  z-index: 2;
  width: 8rem;
  opacity: 0.9;
}

.hero-logo-mark img {
  width: 100%;
  height: auto;
  display: block;
}

/* cycling research text */
.hero-cycle-wrap {
  max-width: 42rem;
}

.hero-cycle-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.7rem;
}

.hero-cycle {
  position: relative;
  min-height: 4.4rem;
}

.cycle-item {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.4rem, 3.4vw, 2.25rem);
  color: var(--text-primary);
  opacity: 0;
  transform: translateY(0.75rem);
  transition: opacity 0.6s ease, transform 0.6s ease;
  pointer-events: none;
}

.cycle-item.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.cycle-item:hover {
  color: var(--amber);
}

@media (prefers-reduced-motion: reduce) {
  .cycle-item {
    transition: none;
  }
}

@media (max-width: 44rem) {
  .hero {
    height: 68vh;
    min-height: 28rem;
  }

  .hud-readouts {
    top: 5.5rem;
    right: 1rem;
  }

  .hud-readout {
    font-size: 0.68rem;
    padding: 0.25rem 0.5rem;
  }

  .hero-logo-mark {
    top: 5.5rem;
    right: 1rem;
    width: 5rem;
  }
}

/* ---------- news ---------- */
.news-section {
  padding: 4rem 0 1rem;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.news-card {
  display: flex;
  flex-direction: column;
  background: var(--navy-900);
  border: 1px solid var(--navy-700);
  border-radius: 0.4rem;
  padding: 1.5rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.news-card .card-image {
  margin: -1.5rem -1.5rem 1rem;
  border-radius: 0.4rem 0.4rem 0 0;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.news-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

a.news-card:hover {
  border-color: var(--cyan-dim);
  transform: translateY(-2px);
}

.news-card .date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 0.8rem;
}

.news-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.news-card p {
  font-size: 0.9rem;
  flex-grow: 1;
}

.see-all-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 2rem 0 5rem;
}

.see-all-link:hover {
  color: var(--amber);
}

/* ---------- responsive ---------- */
@media (max-width: 44rem) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 4.5rem;
    left: 0;
    right: 0;
    background: var(--navy-900);
    border-bottom: 1px solid var(--navy-700);
  }

  .site-nav.open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 1.5rem 1.5rem;
  }

  .site-nav a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--navy-700);
  }

  .site-nav a.active {
    border-bottom-color: var(--navy-700);
  }
}