:root {
  --bg: #0b0b0c;
  --surface: #111214;
  --surface-2: #0e0f11;
  --text: #f4f4f2;
  --muted: #a0a4aa;
  --line: rgba(244, 244, 242, 0.12);
  --accent: #ff4d4d;
  --accent-dim: rgba(255, 77, 77, 0.2);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  font-family: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;
  color: var(--text);
  background-color: var(--bg);
  background-image: linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.03) 1px,
      transparent 1px
    ),
    linear-gradient(0deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 120px 120px;
  min-height: 100vh;
}

::selection {
  background: var(--accent-dim);
}

.page {
  padding: 36px 6vw 72px;
  max-width: 1120px;
  margin: 0 auto;
}

h1,
h2,
h3 {
  margin: 0 0 16px;
  letter-spacing: -0.02em;
  font-weight: 600;
}

h1 {
  font-size: clamp(2.4rem, 2rem + 2.6vw, 3.8rem);
  line-height: 1.02;
}

h2 {
  font-size: clamp(1.6rem, 1.2rem + 1.2vw, 2.2rem);
}

h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
}

.typewriter.is-typing::after {
  content: "";
  display: inline-block;
  width: 0.6ch;
  margin-left: 2px;
  border-right: 2px solid var(--accent);
  animation: blink 0.9s step-end infinite;
}

p {
  margin: 0 0 16px;
  line-height: 1.7;
  color: var(--muted);
}

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

a:hover {
  color: var(--accent);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 48px;
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 11, 12, 0.9);
  backdrop-filter: blur(6px);
}

.logo {
  font-weight: 600;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--muted);
}

.nav-links {
  display: flex;
  gap: 16px;
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  flex-wrap: wrap;
}

.hero {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding-bottom: 24px;
}

.hero-intro {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 32px;
  align-items: start;
}

.eyebrow {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.36em;
  color: var(--accent);
  margin-bottom: 12px;
}

.lead {
  font-size: 1.08rem;
  max-width: 560px;
  color: var(--text);
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin: 20px 0;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  transition: border-color 0.2s ease, transform 0.2s ease,
    color 0.2s ease;
}

.button.primary {
  background: var(--text);
  color: var(--bg);
  border-color: transparent;
}

.button:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  color: var(--accent);
}

.quick-stats {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.stat {
  font-size: 1.05rem;
  font-weight: 600;
  display: block;
  color: var(--text);
}

.label {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.about-intro {
  max-width: 680px;
}

.about-note {
  margin-bottom: 20px;
  color: var(--muted);
}

.hero-card {
  background: var(--surface);
  border-radius: 6px;
  padding: 18px;
  border: 1px solid var(--line);
}

.hero-card__inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-title {
  font-weight: 600;
  color: var(--text);
}

.focus-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
  color: var(--muted);
}

.focus-list li {
  padding-left: 18px;
  position: relative;
}

.focus-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.focus-meta {
  display: grid;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
}

.meta-label {
  margin: 0 0 6px;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.meta-value {
  margin: 0;
  color: var(--text);
}

.signature {
  font-size: 0.95rem;
  color: var(--accent);
}

.section {
  margin-top: 64px;
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.research-areas {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.research-areas span {
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.section-hint {
  margin-top: -6px;
  margin-bottom: 20px;
  font-size: 0.85rem;
  color: var(--muted);
}

.project-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.filter-button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.filter-button.is-active,
.filter-button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.featured-block,
.projects-block {
  margin-bottom: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 4px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
  margin-bottom: 8px;
  align-items: start;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  align-items: start;
}

.project-card {
  background: var(--surface);
  border-radius: 6px;
  padding: 18px;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 220px;
  transition: border-color 0.2s ease, transform 0.2s ease;
  align-self: start;
}

.project-card.featured {
  background: var(--surface-2);
  border-color: var(--accent);
}

.project-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.project-card.empty {
  text-align: center;
  justify-content: center;
  color: var(--muted);
}

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.project-title {
  color: var(--text);
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.95rem;
  font-weight: 600;
}

.project-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.project-tags span {
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  font-size: 0.7rem;
  color: var(--muted);
}

.project-links {
  margin-top: auto;
  display: flex;
  gap: 12px;
  font-size: 0.8rem;
}

.project-links a {
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.case-study {
  border-top: 1px solid transparent;
  padding-top: 0;
  display: grid;
  gap: 8px;
  font-size: 0.74rem;
  color: var(--muted);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.2s ease,
    padding-top 0.35s ease, border-color 0.35s ease;
}

.case-study.is-open {
  border-top-color: var(--line);
  padding-top: 10px;
  opacity: 1;
}

.case-toggle {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.case-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.case-toggle[aria-expanded="true"] .case-arrow {
  transform: rotate(90deg);
}

.case-arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}

.case-row {
  display: grid;
  gap: 4px;
}

.case-label {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.65rem;
  color: var(--text);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.about-card {
  background: var(--surface);
  border-radius: 6px;
  padding: 18px;
  border: 1px solid var(--line);
}

.skills-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.skills-card {
  background: var(--surface);
  border-radius: 6px;
  padding: 18px;
  border: 1px solid var(--line);
  display: grid;
  gap: 12px;
}

.tooling-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tooling-list span {
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.info-card {
  background: var(--surface);
  border-radius: 6px;
  padding: 18px;
  border: 1px solid var(--line);
  display: grid;
  gap: 12px;
}

.text-link {
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--accent);
}

.inline-code {
  font-family: "IBM Plex Mono", monospace;
  background: var(--surface-2);
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
}

.contact-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  align-items: center;
  padding: 22px;
  background: var(--surface);
  border-radius: 6px;
  border: 1px solid var(--line);
}

.contact-label {
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.contact-value {
  font-weight: 600;
  margin-bottom: 0;
  color: var(--text);
}

.footer {
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .nav-links {
    flex-wrap: wrap;
    line-height: 1.6;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-text,
  .hero-card,
  .section {
    animation: rise 0.9s ease both;
  }

  .hero-card {
    animation-delay: 0.2s;
  }

  .section {
    animation-delay: 0.3s;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes blink {
  0%,
  49% {
    border-color: var(--accent);
  }
  50%,
  100% {
    border-color: transparent;
  }
}