:root {
  --color-bg: #050816;
  --color-bg-alt: #0a1024;
  --color-surface: #0f172a;
  --color-surface-soft: #111827;
  --color-border-subtle: rgba(148, 163, 184, 0.3);
  --color-accent: #38bdf8;
  --color-accent-soft: rgba(56, 189, 248, 0.12);
  --color-pill-bg: rgba(6, 10, 18, 0.72);
  --color-pill-border: rgba(255, 255, 255, 0.06);
  --color-pill-text: #9ca3b8;
  --color-link-warm: #f3e8c8;
  --color-link-warm-hover: #fff5de;
  --color-cta: #f5d547;
  --color-cta-text: #111827;
  --color-cta-hover: #ffe066;
  --color-text: #e5e7eb;
  --color-text-soft: #9ca3af;
  --color-text-strong: #f9fafb;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.65);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-pill: 999px;
  --transition-fast: 0.16s ease-out;
  --transition-med: 0.22s ease-out;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: #0b0f14;
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: min(1120px, 100% - 2.5rem);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(11, 15, 20, 0.88);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0.25rem;
  gap: 1rem;
}

.site-brand {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.site-brand-name {
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-strong);
  line-height: 1.2;
}

.site-brand-tagline {
  font-size: 0.72rem;
  color: var(--color-text-soft);
  letter-spacing: 0.04em;
  line-height: 1.35;
  max-width: 22rem;
}

.nav-list-minimal {
  gap: 1.15rem;
}

.nav-list-minimal a::after {
  display: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--color-text-soft);
  position: relative;
  padding-bottom: 0.15rem;
  transition: color var(--transition-fast);
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(to right, #38bdf8, #818cf8);
  transition: width var(--transition-fast);
}

.nav-list a:hover {
  color: var(--color-text-strong);
}

.nav-list a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0.45rem;
}

.nav-toggle-bar {
  width: 18px;
  height: 2px;
  background: var(--color-text);
  display: block;
  border-radius: 999px;
}

.nav-toggle-bar + .nav-toggle-bar {
  margin-top: 4px;
}

.theme-toggle {
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  padding: 0.25rem 0.7rem;
  background: radial-gradient(circle at top, #0f172a, #020617);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text-soft);
  font-size: 0.8rem;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: rgba(148, 163, 184, 0.9);
}

.theme-toggle-icon {
  display: inline-block;
}

.hero {
  padding: 3.5rem 0 2.5rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.1fr);
  gap: 2.5rem;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  color: var(--color-accent);
  font-weight: 500;
  margin: 0 0 0.8rem;
}

.hero-text h1 {
  font-size: clamp(2.4rem, 3vw, 2.9rem);
  line-height: 1.05;
  margin: 0 0 0.75rem;
  color: var(--color-text-strong);
}

.hero-subtitle {
  margin: 0 0 1.4rem;
  color: var(--color-text-soft);
  font-size: 0.98rem;
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 1.8rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background var(--transition-med),
    transform var(--transition-fast),
    box-shadow var(--transition-med),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.button-primary {
  background: linear-gradient(135deg, #38bdf8, #818cf8);
  color: #0b1220;
  box-shadow:
    0 15px 35px rgba(56, 189, 248, 0.35),
    0 0 0 1px rgba(15, 23, 42, 0.9);
  font-weight: 600;
}

.button-primary:hover {
  transform: translateY(-1px);
  box-shadow:
    0 20px 45px rgba(56, 189, 248, 0.4),
    0 0 0 1px rgba(15, 23, 42, 0.9);
}

.button-ghost {
  border-color: rgba(148, 163, 184, 0.8);
  color: var(--color-text);
  background: radial-gradient(circle at top, #020617, #020617);
}

.button-ghost:hover {
  border-color: rgba(148, 163, 184, 1);
  background: radial-gradient(circle at top, #020617, #020617);
}

.button-cta {
  background: var(--color-cta);
  color: var(--color-cta-text);
  border-color: transparent;
  font-weight: 600;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.2);
}

.button-cta:hover {
  background: var(--color-cta-hover);
  color: var(--color-cta-text);
  transform: translateY(-1px);
}

.button-outline {
  border-color: rgba(255, 255, 255, 0.22);
  color: var(--color-text);
  background: transparent;
  font-weight: 500;
}

.button-outline:hover {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.04);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem;
  margin: 0;
}

.hero-metrics dt {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-soft);
  margin-bottom: 0.3rem;
}

.hero-metrics dd {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text);
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.hero-card {
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.3rem;
  background: radial-gradient(circle at top left, #1d283a, #020617);
  border: 1px solid rgba(148, 163, 184, 0.25);
  box-shadow: var(--shadow-soft);
}

.hero-card h2,
.hero-card h3 {
  margin: 0 0 0.7rem;
  font-size: 0.95rem;
}

.hero-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.3rem;
  font-size: 0.86rem;
  color: var(--color-text-soft);
}

.hero-card.secondary {
  padding: 1.05rem 1.15rem;
  background: radial-gradient(circle at top left, #0f172a, #020617);
}

.intro {
  padding: 2.25rem 0 2.75rem;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
  gap: 1.5rem;
  align-items: start;
}

.intro-card {
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.6rem 1.45rem;
  background: linear-gradient(155deg, #141a24 0%, #0d1118 100%);
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.45);
}

.intro-eyebrow {
  margin: 0 0 0.65rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}

.intro-headline {
  margin: 0 0 1rem;
  font-size: clamp(1.45rem, 2.5vw, 1.85rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text-strong);
}

.intro-body {
  margin: 0 0 1.1rem;
  font-size: 0.92rem;
  line-height: 1.62;
  color: var(--color-text-soft);
}

.intro-pills {
  margin-bottom: 1.45rem;
}

.intro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.55rem;
  margin-bottom: 1rem;
}

.intro-actions .button {
  padding: 0.55rem 1.1rem;
  font-size: 0.82rem;
}

.intro-status {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--color-text-soft);
  padding-top: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.intro-featured {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.featured-tile {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #0d1118;
  transition:
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.featured-tile:hover {
  border-color: rgba(255, 255, 255, 0.16);
  transform: translateY(-2px);
}

.featured-tile-media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: #05080d;
  overflow: hidden;
}

.featured-tile-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 58% 42%;
  display: block;
}

.featured-tile-video--zoom {
  transform: scale(1.52);
  transform-origin: 62% 42%;
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
}

.featured-tile-chip {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 1;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.65);
  color: #e5e7eb;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.featured-tile-text {
  padding: 0.75rem 0.85rem 0.9rem;
}

.featured-tile-title {
  margin: 0 0 0.35rem;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--color-text-strong);
  line-height: 1.25;
}

.featured-tile-desc {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--color-text-soft);
}

.featured-tile-desc--prose {
  font-size: 0.82rem;
  line-height: 1.6;
}

.section-header.section-header-tight p {
  max-width: 32rem;
  font-size: 0.88rem;
}

.section {
  padding: 2.8rem 0 2.4rem;
}

.section-alt {
  background: radial-gradient(circle at top, #020617, #000 65%);
}

.section-inner {
  display: flex;
  flex-direction: column;
  gap: 1.9rem;
}

.section-header {
  max-width: 46rem;
}

.section-header h2 {
  margin: 0 0 0.3rem;
  font-size: 1.5rem;
}

.section-header p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-soft);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.1fr);
  gap: 2rem;
}

.two-column h3 {
  margin: 0 0 0.6rem;
  font-size: 1.05rem;
}

.two-column p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--color-text-soft);
}

.pill-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.pill-list li {
  font-size: 0.8rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.55);
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.9), #020617);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.3rem;
}

.card {
  border-radius: 18px;
  padding: 1.15rem 1.2rem 1.1rem;
  background: linear-gradient(
    155deg,
    #171e2f 0%,
    #101624 48%,
    #0a0d14 100%
  );
  border: 1px solid rgba(55, 65, 90, 0.45);
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.7);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.card-header {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.card h3 {
  margin: 0;
  font-size: 1rem;
}

.card-meta {
  font-size: 0.8rem;
  color: var(--color-text-soft);
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

.tag-list {
  list-style: none;
  padding: 0;
  margin: 0.65rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.tag-list li {
  font-size: 0.78rem;
  font-weight: 450;
  letter-spacing: 0.01em;
  padding: 0.38rem 0.85rem;
  border-radius: var(--radius-pill);
  background: var(--color-pill-bg);
  color: var(--color-pill-text);
  border: 1px solid var(--color-pill-border);
}

.project-media {
  position: relative;
  margin-top: 0.75rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(15, 23, 42, 0.9);
  background: radial-gradient(circle at top, #020617, #020617);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.8);
}

.card .project-media + .project-media {
  margin-top: 0.5rem;
}

.media-chip {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 2;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.28rem 0.55rem;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.72);
  color: #e5e7eb;
  border: 1px solid rgba(255, 255, 255, 0.1);
  pointer-events: none;
}

.project-media img,
.project-media video {
  display: block;
  width: 100%;
  height: auto;
}

.project-video {
  max-height: 260px;
}

.project-video-wide {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.project-media-link {
  position: relative;
  display: block;
}

.project-media-thumb {
  display: block;
}

.project-media-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, rgba(15, 23, 42, 0.05), rgba(15, 23, 42, 0.78));
  color: #e5e7eb;
  font-size: 0.85rem;
}

.project-media-label {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.7);
}

.project-link {
  margin-top: 0.85rem;
  font-size: 0.81rem;
  line-height: 1.5;
}

.project-link a {
  color: var(--color-link-warm);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.project-link a:hover {
  color: var(--color-link-warm-hover);
}

.project-link a:focus-visible {
  outline: 2px solid var(--color-link-warm);
  outline-offset: 3px;
  border-radius: 4px;
}

.project-link-meta {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.74rem;
  font-weight: 400;
  color: var(--color-text-soft);
  line-height: 1.4;
}

.project-link-arrow {
  white-space: nowrap;
}

.coursework-layout {
  display: grid;
  gap: 1rem;
}

.coursework-group {
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
  background: radial-gradient(circle at top left, #020617, #020617);
  border: 1px solid rgba(31, 41, 55, 0.95);
}

.coursework-group h3 {
  margin: 0 0 0.7rem;
  font-size: 1rem;
}

.coursework-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.coursework-list li {
  line-height: 1.5;
}

.coursework-course {
  font-size: 0.9rem;
  color: var(--color-text-strong);
  font-weight: 600;
}

.coursework-topics {
  font-size: 0.8rem;
  color: var(--color-text-soft);
}

.coursework-keywords {
  display: grid;
  gap: 0.6rem;
}

.coursework-keywords h3 {
  margin: 0;
  font-size: 1rem;
}

.pub-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.8rem;
}

.pub-title {
  display: block;
  font-size: 0.95rem;
  color: var(--color-text-strong);
}

.pub-meta {
  display: block;
  font-size: 0.83rem;
  color: var(--color-text-soft);
}

.pub-link {
  display: inline-block;
  margin-top: 0.25rem;
  font-size: 0.82rem;
  color: var(--color-accent);
}

.timeline {
  border-left: 1px solid var(--color-border-subtle);
  padding-left: 1.3rem;
  display: grid;
  gap: 1.1rem;
}

.timeline-item {
  position: relative;
}

.timeline-dot {
  position: absolute;
  left: -1.65rem;
  top: 0.25rem;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, #38bdf8, #818cf8);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.15);
}

.timeline-content h3 {
  margin: 0 0 0.15rem;
  font-size: 0.98rem;
}

.timeline-meta {
  margin: 0 0 0.4rem;
  font-size: 0.8rem;
  color: var(--color-text-soft);
}

.timeline-content p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.2fr);
  gap: 2rem;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.7rem;
}

.contact-list li span {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-soft);
  margin-bottom: 0.15rem;
}

.contact-list li a {
  font-size: 0.93rem;
  color: var(--color-text-strong);
}

.contact-grid p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

.site-footer {
  padding: 1.6rem 0 2.2rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.78rem;
  color: var(--color-text-soft);
  border-top: 1px solid rgba(15, 23, 42, 0.9);
  padding-top: 1.1rem;
}

.footer-tagline {
  opacity: 0.9;
}

@media (max-width: 880px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-panel {
    order: -1;
  }

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

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

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

@media (max-width: 720px) {
  .site-header {
    border-bottom: 1px solid rgba(15, 23, 42, 0.9);
  }

  .header-inner {
    padding-inline: 0;
  }

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

  .nav-list {
    position: absolute;
    top: 100%;
    right: 1.25rem;
    margin-top: 0.5rem;
    padding: 0.6rem 0.75rem;
    border-radius: 0.9rem;
    background: radial-gradient(circle at top, #020617, #020617);
    border: 1px solid rgba(15, 23, 42, 0.95);
    box-shadow:
      0 20px 40px rgba(15, 23, 42, 0.85),
      0 0 0 1px rgba(15, 23, 42, 1);
    flex-direction: column;
    gap: 0.5rem;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition:
      opacity var(--transition-fast),
      visibility var(--transition-fast),
      transform var(--transition-fast);
  }

  .nav-list.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .hero {
    padding-top: 2.6rem;
  }

  .intro {
    padding-top: 1.5rem;
    padding-bottom: 2rem;
  }

  .intro-featured {
    flex-direction: column;
  }

  .featured-tile-video--zoom {
    transform: scale(1.34);
    transform-origin: 60% 42%;
  }

  .featured-tile-video {
    object-position: 55% 42%;
  }

  .hero-actions {
    gap: 0.5rem;
  }

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

  .hero-metrics {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 480px) {
  .container {
    width: min(100% - 1.5rem, 100%);
  }

  .hero-text h1 {
    font-size: 2.1rem;
  }

  .intro-actions .button {
    flex: 1 1 auto;
    min-width: calc(50% - 0.25rem);
    justify-content: center;
  }

  .button {
    justify-content: center;
  }

  .pill-list {
    gap: 0.35rem;
  }
}