:root {
  --paper: #f5f0e6;
  --paper-deep: #ece3d3;
  --ink: #17181a;
  --muted: #5f625d;
  --line: rgba(23, 24, 26, 0.15);
  --line-strong: rgba(23, 24, 26, 0.32);
  --accent: #1d4f73;
  --accent-soft: rgba(29, 79, 115, 0.12);
  --olive: #5b6751;
  --sand: #ad8f62;
  --card: rgba(255, 252, 245, 0.72);
  --shadow: 0 24px 60px rgba(33, 25, 11, 0.07);
  --max-width: 1180px;
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Manrope", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.72), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.5), transparent 22%),
    repeating-linear-gradient(
      180deg,
      rgba(23, 24, 26, 0.025),
      rgba(23, 24, 26, 0.025) 1px,
      transparent 1px,
      transparent 11px
    ),
    var(--paper);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 12% 18%, rgba(29, 79, 115, 0.08), transparent 22%),
    radial-gradient(circle at 90% 22%, rgba(91, 103, 81, 0.08), transparent 18%),
    radial-gradient(circle at 50% 88%, rgba(173, 143, 98, 0.08), transparent 24%);
  mix-blend-mode: multiply;
}

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

.page-shell {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
  padding: 24px 0 64px;
  position: relative;
}

.site-header,
.site-footer,
.hero,
.section,
.about-layout {
  position: relative;
  z-index: 1;
}

.site-header,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-header {
  padding: 8px 0 34px;
}

.brand,
.site-nav,
.section-index,
.eyebrow,
.hero-kicker,
.card-label,
.note-date,
.mini-label,
.contact-label,
.footer-note,
.rail-category,
.rail-year {
  font-family: "IBM Plex Mono", monospace;
}

.brand {
  font-size: 0.92rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.84rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-nav a {
  opacity: 0.78;
}

.site-nav a:hover,
.contact-links a:hover,
.button-link:hover {
  opacity: 1;
}

.hero {
  padding: 34px 0 88px;
  border-top: 1px solid var(--line);
}

.eyebrow,
.hero-kicker,
.section-index,
.card-label,
.note-date,
.mini-label,
.contact-label,
.rail-category {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.77rem;
  color: var(--muted);
}

.hero-copy {
  width: min(820px, 100%);
  margin-top: 42px;
}

.hero h1,
.section-title,
.app-card h3,
.rail-card h3,
.note-card h3,
.contact-card h3 {
  font-family: "Cormorant Garamond", serif;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.hero h1 {
  margin: 16px 0 20px;
  font-size: clamp(3.3rem, 8vw, 6.8rem);
  line-height: 0.94;
  max-width: 10ch;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
  font-weight: 500;
}

.hero-summary {
  width: min(640px, 100%);
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.8;
  color: rgba(23, 24, 26, 0.86);
}

.hero-meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.hero-meta p {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

.hero-meta span {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.35);
  font-size: 0.94rem;
}

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

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--ink);
  color: #f7f1e7;
  transition: transform 180ms ease, opacity 180ms ease;
}

.button-link.ghost {
  background: transparent;
  color: var(--ink);
}

.button-link:hover {
  transform: translateY(-1px);
}

.section {
  padding: 32px 0 76px;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  margin-bottom: 30px;
}

.section-title {
  margin: 0;
  font-size: clamp(2.1rem, 4vw, 3.6rem);
  line-height: 1;
}

.section-subtitle {
  max-width: 620px;
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.app-card,
.note-card,
.about-card,
.contact-card {
  border: 1px solid rgba(23, 24, 26, 0.12);
  background: var(--card);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.app-card {
  min-height: 360px;
  padding: 26px;
  border-radius: var(--radius);
  display: grid;
  gap: 18px;
  overflow: hidden;
  position: relative;
  transition: transform 220ms ease, border-color 220ms ease;
}

.app-card::after {
  content: "";
  position: absolute;
  inset: auto -12% -28% auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.72), transparent 64%);
  opacity: 0.62;
}

.app-card:hover {
  transform: translateY(-4px);
  border-color: rgba(23, 24, 26, 0.2);
}

.tone-ink {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.64)),
    linear-gradient(140deg, rgba(23, 24, 26, 0.06), transparent 45%);
}

.tone-olive {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.62)),
    linear-gradient(140deg, rgba(91, 103, 81, 0.1), transparent 55%);
}

.tone-blue {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.64)),
    linear-gradient(150deg, rgba(29, 79, 115, 0.12), transparent 55%);
}

.tone-sand {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.66)),
    linear-gradient(150deg, rgba(173, 143, 98, 0.12), transparent 52%);
}

.card-number {
  font-family: "Cormorant Garamond", serif;
  font-size: 3.3rem;
  line-height: 1;
  color: rgba(23, 24, 26, 0.74);
}

.card-topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  position: relative;
  z-index: 1;
}

.card-topline .card-label {
  max-width: 260px;
  text-align: right;
}

.app-preview {
  position: relative;
  z-index: 1;
  border-radius: 24px;
  overflow: hidden;
  min-height: 240px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0.2)),
    rgba(255, 255, 255, 0.42);
  border: 1px solid rgba(23, 24, 26, 0.09);
}

.app-image {
  display: block;
  width: 100%;
  height: 240px;
  object-fit: cover;
  object-position: top center;
}

.app-icon-badge {
  position: absolute;
  left: 16px;
  bottom: 16px;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  box-shadow: 0 18px 34px rgba(21, 20, 20, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.app-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 240px;
  font-family: "Cormorant Garamond", serif;
  font-size: 5.4rem;
  letter-spacing: -0.04em;
  color: rgba(23, 24, 26, 0.8);
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.72), transparent 28%),
    linear-gradient(145deg, rgba(29, 79, 115, 0.12), rgba(173, 143, 98, 0.08));
}

.card-body,
.card-meta {
  position: relative;
  z-index: 1;
}

.app-card h3 {
  margin: 8px 0 12px;
  font-size: 2.2rem;
  line-height: 1;
}

.card-summary,
.note-card p,
.about-card p,
.contact-card p,
.rail-card p {
  line-height: 1.8;
  color: rgba(23, 24, 26, 0.82);
}

.card-meta {
  display: grid;
  gap: 12px;
  margin-top: 6px;
}

.card-link {
  justify-self: start;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(23, 24, 26, 0.14);
  background: rgba(255, 255, 255, 0.45);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card-links,
.rail-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  position: relative;
  z-index: 1;
}

.card-links {
  margin-top: 8px;
}

.card-meta div {
  display: grid;
  gap: 4px;
  padding-top: 12px;
  border-top: 1px solid rgba(23, 24, 26, 0.09);
}

.card-meta dt {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.card-meta dd {
  margin: 0;
  font-size: 0.98rem;
}

.card-facts {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  position: relative;
  z-index: 1;
}

.card-facts li {
  padding-left: 14px;
  position: relative;
  line-height: 1.7;
  color: rgba(23, 24, 26, 0.82);
}

.card-facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(29, 79, 115, 0.55);
}

.project-rail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.rail-card {
  min-height: 280px;
  padding: 22px 20px;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.22), transparent);
}

.rail-index {
  margin: 0 0 28px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  color: var(--muted);
}

.rail-card h3 {
  margin: 6px 0 12px;
  font-size: 2rem;
  line-height: 1;
}

.rail-year {
  display: inline-flex;
  align-self: flex-start;
}

.rail-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 18px;
}

.rail-link {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.note-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.note-card {
  padding: 24px;
  border-radius: 24px;
}

.note-card h3 {
  margin: 10px 0 12px;
  font-size: 2rem;
  line-height: 1.05;
}

.about-layout {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 18px;
}

.about-card,
.contact-card {
  border-radius: var(--radius);
  padding: 26px;
}

.about-intro {
  margin: 0 0 22px;
  font-size: 1.08rem;
}

.about-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.about-columns section {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.contact-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-card h3 {
  margin: 8px 0 12px;
  font-size: 2.4rem;
  line-height: 0.96;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.contact-links a {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.48);
}

.site-footer {
  padding-top: 26px;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
  color: var(--muted);
}

.footer-note {
  max-width: 420px;
  text-align: right;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .app-grid,
  .note-grid,
  .project-rail,
  .about-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(calc(100% - 24px), var(--max-width));
  }

  .site-header,
  .site-footer,
  .hero-meta,
  .section-heading,
  .app-grid,
  .note-grid,
  .project-rail,
  .about-columns {
    grid-template-columns: 1fr;
  }

  .site-header,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding-bottom: 66px;
  }

  .hero-copy {
    margin-top: 30px;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(2.7rem, 15vw, 4.3rem);
  }

  .hero-meta {
    display: grid;
  }

  .section-heading {
    display: grid;
    gap: 12px;
  }

  .app-card {
    min-height: auto;
  }

  .site-footer {
    gap: 8px;
  }

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