:root {
  color-scheme: dark;
  --bg: #0a0b0d;
  --surface: #111318;
  --surface-2: #171a20;
  --text: #f3f1ea;
  --muted: #9da3ad;
  --line: rgba(243, 241, 234, 0.14);
  --line-strong: rgba(243, 241, 234, 0.28);
  --accent: #c8ff5a;
  --accent-soft: rgba(200, 255, 90, 0.12);
  --max: 1180px;
  --radius: 22px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 12% 0%, rgba(200, 255, 90, 0.08), transparent 28rem),
    radial-gradient(circle at 90% 16%, rgba(98, 131, 255, 0.08), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 5px;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 100;
  transform: translateY(-180%);
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: var(--text);
  color: var(--bg);
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-shell {
  width: min(calc(100% - 2rem), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(243, 241, 234, 0.08);
  background: rgba(10, 11, 13, 0.84);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav a {
  transition: color 160ms ease;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(240px, 0.65fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: end;
  min-height: calc(100vh - 72px);
  padding: clamp(5rem, 10vw, 9rem) 0 5rem;
}

.eyebrow {
  margin: 0 0 1.5rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1,
.section-heading {
  margin: 0;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.hero h1 {
  max-width: 980px;
  font-size: clamp(3.4rem, 8.6vw, 8.7rem);
  font-weight: 760;
}

.hero-copy {
  max-width: 720px;
  margin: 2rem 0 0;
  color: #c5c8ce;
  font-size: clamp(1.05rem, 1.6vw, 1.32rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.2rem;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.15rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 700;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
  border-color: rgba(243, 241, 234, 0.52);
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #10120c;
}

.button.primary:hover {
  background: #d5ff7b;
}

.hero-aside {
  align-self: center;
}

.portrait-frame {
  position: relative;
  overflow: hidden;
  max-width: 390px;
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.portrait-frame::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(10, 11, 13, 0.84));
  content: "";
  pointer-events: none;
}

.portrait-frame img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.04);
}

.portrait-caption {
  position: absolute;
  z-index: 2;
  right: 1.25rem;
  bottom: 1.15rem;
  left: 1.25rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: #d8d9dd;
  font-size: 0.8rem;
}

.signal-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 1rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--line);
}

.signal-row span {
  padding: 0.95rem 0.7rem;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.09em;
  text-align: center;
  text-transform: uppercase;
}

.section {
  padding: clamp(5.5rem, 10vw, 9rem) 0;
  border-top: 1px solid var(--line);
}

.section-kicker {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-heading {
  max-width: 900px;
  font-size: clamp(2.6rem, 6vw, 5.8rem);
  font-weight: 720;
}

.section-intro {
  max-width: 760px;
  margin: 1.75rem 0 0;
  color: #b6bac2;
  font-size: clamp(1rem, 1.6vw, 1.2rem);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  margin-top: 3.5rem;
}

.project-card {
  position: relative;
  display: flex;
  min-height: 340px;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(1.4rem, 3vw, 2rem);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.008));
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(200, 255, 90, 0.42);
  background: linear-gradient(145deg, rgba(200, 255, 90, 0.075), rgba(255, 255, 255, 0.01));
}

.project-card.featured {
  grid-column: span 7;
}

.project-card.standard {
  grid-column: span 5;
}

.project-card.wide {
  grid-column: span 6;
}

.project-number {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.project-card h3 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.7rem, 3vw, 2.7rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.project-card p {
  max-width: 560px;
  margin: 0;
  color: #b7bbc2;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.6rem;
}

.project-meta span {
  padding: 0.42rem 0.62rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #c6c9cf;
  font-size: 0.72rem;
}

.project-link {
  display: inline-flex;
  gap: 0.4rem;
  align-items: center;
  margin-top: 1.5rem;
  font-weight: 750;
}

.project-link::after {
  content: "↗";
  color: var(--accent);
}

.about-grid,
.principles-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  margin-top: 3rem;
}

.about-statement {
  grid-column: 1 / span 7;
  margin: 0;
  font-size: clamp(1.55rem, 3vw, 2.5rem);
  line-height: 1.28;
  letter-spacing: -0.035em;
}

.about-detail {
  grid-column: 9 / -1;
  color: #aeb3bb;
}

.about-detail p:first-child {
  margin-top: 0;
}

.principle {
  grid-column: span 4;
  min-height: 250px;
  padding: 1.5rem;
  border-top: 1px solid var(--line-strong);
}

.principle strong {
  display: block;
  margin-bottom: 2.7rem;
  color: var(--accent);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.principle h3 {
  margin: 0 0 0.85rem;
  font-size: 1.45rem;
  letter-spacing: -0.03em;
}

.principle p {
  margin: 0;
  color: #aeb3bb;
}

.archive-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 3rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  font-weight: 720;
}

.archive-link span:last-child {
  color: var(--accent);
}

.footer {
  padding: 4rem 0;
}

.footer-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}

.footer-title {
  max-width: 700px;
  margin: 0;
  font-size: clamp(2rem, 5vw, 4.8rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.footer-meta {
  color: var(--muted);
  font-size: 0.85rem;
  text-align: right;
}

.footer-meta a {
  color: var(--text);
}

@media (max-width: 860px) {
  .nav a:not(.nav-github) {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 5rem;
  }

  .hero-aside {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 1rem;
    align-items: end;
  }

  .portrait-frame {
    margin: 0;
  }

  .signal-row {
    grid-template-columns: 1fr;
    margin: 0;
  }

  .project-card.featured,
  .project-card.standard,
  .project-card.wide {
    grid-column: 1 / -1;
  }

  .about-statement,
  .about-detail {
    grid-column: 1 / -1;
  }

  .principle {
    grid-column: 1 / -1;
    min-height: auto;
  }

  .principle strong {
    margin-bottom: 1.5rem;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-meta {
    text-align: left;
  }
}

@media (max-width: 560px) {
  .site-shell {
    width: min(calc(100% - 1.2rem), var(--max));
  }

  .header-inner {
    min-height: 62px;
  }

  .brand span:last-child {
    display: none;
  }

  .hero {
    padding-top: 3.75rem;
  }

  .hero-aside {
    grid-template-columns: 1fr;
  }

  .portrait-frame {
    max-width: none;
  }

  .project-card {
    min-height: 300px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}