:root {
  --bg: #0d0f10;
  --bg-elevated: #15191a;
  --bg-soft: #1b2021;
  --surface: rgba(18, 22, 23, 0.86);
  --surface-strong: rgba(22, 27, 28, 0.96);
  --text: #f3efe4;
  --text-muted: #a6a39a;
  --line: rgba(201, 165, 92, 0.18);
  --line-strong: rgba(201, 165, 92, 0.4);
  --accent: #c9a55c;
  --accent-soft: rgba(201, 165, 92, 0.14);
  --accent-glow: rgba(201, 165, 92, 0.28);
  --max-width: 1200px;
  --nav-height: 78px;
  --shadow: 0 18px 44px rgba(0, 0, 0, 0.32);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 12px;
  --transition: 220ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Outfit", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(201, 165, 92, 0.08), transparent 32%),
    radial-gradient(circle at top right, rgba(201, 165, 92, 0.05), transparent 28%),
    linear-gradient(180deg, #0f1213 0%, var(--bg) 52%, #090a0b 100%);
  color: var(--text);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.1' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.012) 0, rgba(255, 255, 255, 0.012) 1px, transparent 1px, transparent 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.008) 0, rgba(255, 255, 255, 0.008) 1px, transparent 1px, transparent 100%);
  background-size: 72px 72px;
  opacity: 0.22;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 85%);
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
a,
.card,
.tile,
.menu-toggle span,
.pill,
.essay-entry {
  transition:
    transform var(--transition),
    border-color var(--transition),
    background-color var(--transition),
    color var(--transition),
    box-shadow var(--transition),
    opacity var(--transition);
}

.site-shell {
  position: relative;
  min-height: 100vh;
}

.topbar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-height);
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(10, 12, 12, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.topbar-inner {
  width: min(calc(100% - 2rem), var(--max-width));
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
}

.brand-symbol {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.8rem;
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(145deg, rgba(201, 165, 92, 0.24), rgba(201, 165, 92, 0.04)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
  position: relative;
}

.brand-symbol img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
  position: relative;
  z-index: 1;
}

.brand-symbol.has-logo {
  overflow: hidden;
  background: rgba(255, 255, 255, 0.03);
}

.brand-symbol.has-logo::before,
.brand-symbol.has-logo::after {
  display: none;
}

.brand-symbol::before,
.brand-symbol::after {
  content: "";
  position: absolute;
  inset: 0.4rem;
  border: 1px solid rgba(201, 165, 92, 0.22);
}

.brand-symbol::after {
  inset: 0.8rem;
}

.brand-label {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
}

.brand-name {
  font-family: "DM Serif Display", serif;
  font-size: 1.45rem;
  letter-spacing: 0.02em;
  line-height: 1;
}

.brand-subtitle {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.site-nav a {
  font-size: 0.9rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.45rem;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition);
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.active {
  color: var(--text);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-toggle {
  display: none;
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 999px;
  width: 3rem;
  height: 3rem;
  padding: 0;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 1.1rem;
  height: 1px;
  background: var(--text);
  position: relative;
}

.menu-toggle span::before,
.menu-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 1.1rem;
  height: 1px;
  background: var(--text);
}

.menu-toggle span::before {
  top: -0.35rem;
}

.menu-toggle span::after {
  top: 0.35rem;
}

.menu-toggle[aria-expanded="true"] span {
  background: transparent;
}

.menu-toggle[aria-expanded="true"] span::before {
  transform: translateY(0.35rem) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span::after {
  transform: translateY(-0.35rem) rotate(-45deg);
}

main {
  display: block;
}

.page {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: calc(var(--nav-height) + 3rem) 0 3.5rem;
  opacity: 0;
  transform: translateY(18px);
}

body.page-ready .page {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 480ms ease, transform 480ms ease;
}

.hero {
  padding: 3.5rem 0 2rem;
  display: grid;
  gap: 1.5rem;
}

.hero-home {
  position: relative;
  min-height: 42rem;
  padding: 3rem;
  border: 1px solid rgba(201, 165, 92, 0.12);
  border-radius: calc(var(--radius-lg) + 0.5rem);
  overflow: hidden;
  align-content: start;
}

.hero-home > * {
  position: relative;
  z-index: 1;
}

.hero-home::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 9, 10, 0.92) 0%, rgba(8, 9, 10, 0.82) 36%, rgba(8, 9, 10, 0.72) 58%, rgba(8, 9, 10, 0.86) 100%),
    linear-gradient(180deg, rgba(8, 9, 10, 0.3), rgba(8, 9, 10, 0.84)),
    url("background-image-1600.jpg") center center / cover no-repeat;
  transform: scale(1.02);
}

.hero-home::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top right, rgba(201, 165, 92, 0.08), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent 30%, rgba(0, 0, 0, 0.18));
  pointer-events: none;
}

.hero-kicker {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1,
.section-heading h2,
.book-title,
.card-title,
.entry-title {
  font-family: "DM Serif Display", serif;
  font-weight: 400;
  letter-spacing: 0.01em;
}

.hero h1 {
  font-size: clamp(3.4rem, 8vw, 6.8rem);
  line-height: 0.96;
  margin: 0;
  max-width: 10ch;
}

.hero .tagline-slot {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.98rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero-copy,
.section-intro,
.card-copy,
.entry-meta,
.meta-line,
.button-note {
  color: var(--text-muted);
}

.hero-copy {
  max-width: 52rem;
  font-size: 1.08rem;
}

.section {
  padding: 2rem 0 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.05;
}

.section-heading p {
  margin: 0;
  max-width: 38rem;
}

.tiles-grid,
.card-grid,
.resource-list,
.feature-grid,
.book-row {
  display: grid;
  gap: 1rem;
}

.tiles-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 1.25rem;
}

.tile,
.card,
.feature-card,
.book-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 40%),
    var(--surface);
  padding: 1.35rem;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.tile::before,
.card::before,
.feature-card::before,
.book-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(130deg, rgba(201, 165, 92, 0.09), transparent 38%, transparent 60%, rgba(201, 165, 92, 0.05));
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.tile:hover,
.tile:focus-visible,
.card:hover,
.card:focus-within,
.feature-card:hover,
.book-card:hover {
  transform: translateY(-6px);
  border-color: var(--line-strong);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.36), 0 0 0 1px rgba(201, 165, 92, 0.08);
}

.tile:hover::before,
.tile:focus-visible::before,
.card:hover::before,
.card:focus-within::before,
.feature-card:hover::before,
.book-card:hover::before {
  opacity: 1;
}

.tile {
  min-height: 14rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.tile-icon,
.terminal-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 0.95rem;
  border: 1px solid rgba(201, 165, 92, 0.24);
  background: rgba(201, 165, 92, 0.08);
  font-family: "IBM Plex Mono", monospace;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.tile-title,
.card-title,
.feature-card h3,
.book-title {
  margin: 0;
  font-size: 1.55rem;
  line-height: 1.1;
}

.tile-description,
.card-copy,
.feature-card p,
.book-subtitle {
  margin: 0.8rem 0 0;
  font-size: 0.98rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.2rem;
}

.button,
.inline-link,
.card-link,
.entry-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  cursor: pointer;
}

.button {
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.86rem 1.18rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text);
  background: transparent;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  background: rgba(201, 165, 92, 0.1);
  box-shadow: 0 0 0 6px rgba(201, 165, 92, 0.06);
}

.button.primary {
  background: var(--accent);
  color: #16120a;
  border-color: transparent;
}

.button.primary:hover,
.button.primary:focus-visible {
  background: #d8b36b;
}

.button.ghost {
  border-color: rgba(255, 255, 255, 0.1);
}

.inline-link,
.card-link,
.entry-link {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.86rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
}

.inline-link:hover,
.card-link:hover,
.entry-link:hover {
  transform: translateX(4px);
}

.feature-card {
  padding: 1.6rem;
}

.feature-grid {
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
}

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

.resource-list {
  grid-template-columns: 1fr;
}

.resource-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
}

.resource-copy {
  display: grid;
  gap: 0.75rem;
}

.meta-line,
.repo-meta,
.entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.pill,
.source-badge,
.type-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.72rem;
  border-radius: 999px;
  border: 1px solid rgba(201, 165, 92, 0.2);
  background: rgba(201, 165, 92, 0.08);
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.finance-accent {
  border-color: rgba(201, 165, 92, 0.36);
  background: rgba(201, 165, 92, 0.12);
}

.repo-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 38%),
    linear-gradient(0deg, rgba(201, 165, 92, 0.04), rgba(201, 165, 92, 0.04)),
    rgba(14, 17, 18, 0.9);
}

.repo-card .card-title,
.repo-card .card-copy,
.repo-card .repo-meta,
.repo-card .card-link {
  font-family: "IBM Plex Mono", monospace;
}

.repo-card .card-title {
  font-size: 1.2rem;
  line-height: 1.35;
}

.book-row {
  align-items: stretch;
}

.book-card {
  display: grid;
  grid-template-columns: minmax(12rem, 14rem) minmax(0, 1fr);
  gap: 1.2rem;
}

.book-cover {
  min-height: 17rem;
  border-radius: 1.3rem;
  border: 1px solid rgba(201, 165, 92, 0.25);
  background:
    radial-gradient(circle at top left, rgba(201, 165, 92, 0.18), transparent 40%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.05), transparent 55%),
    #131718;
  display: grid;
  place-items: center;
  padding: 1.4rem;
  overflow: hidden;
  position: relative;
}

.book-cover.has-image {
  min-height: unset;
  aspect-ratio: 784 / 1168;
  place-items: stretch;
  padding: 0;
  background: #131718;
}

.book-cover.has-image::before {
  display: none;
}

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

.book-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.25));
}

.book-cover-title {
  position: relative;
  z-index: 1;
  font-family: "DM Serif Display", serif;
  font-size: clamp(1.15rem, 2.1vw, 1.55rem);
  line-height: 1.08;
  max-width: 10ch;
  text-align: center;
  overflow-wrap: normal;
  word-break: normal;
  text-wrap: balance;
}

.book-copy {
  display: grid;
  align-content: start;
  gap: 0.85rem;
}

.entries {
  display: grid;
  gap: 0.3rem;
}

.essay-entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1.1rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.essay-entry:hover {
  transform: translateX(6px);
}

.entry-title {
  margin: 0;
  font-size: 1.4rem;
}

.entry-copy {
  display: grid;
  gap: 0.45rem;
}

.page-footer {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 0 0 2rem;
}

.footer-inner {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

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

.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201, 165, 92, 0.3), transparent);
  margin: 1.25rem 0 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 980px) {
  .tiles-grid,
  .card-grid.two-col,
  .book-row,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .book-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 72px;
  }

  .topbar-inner {
    width: min(calc(100% - 1.2rem), var(--max-width));
  }

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

  .site-nav {
    position: absolute;
    top: calc(100% + 0.65rem);
    right: 0.6rem;
    left: 0.6rem;
    display: grid;
    gap: 0.25rem;
    padding: 0.8rem;
    border-radius: 1.4rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(10, 11, 12, 0.94);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
  }

  .site-nav a {
    padding: 0.9rem 0.85rem;
    border-radius: 0.95rem;
  }

  .site-nav a::after {
    display: none;
  }

  .site-nav a:hover,
  .site-nav a:focus-visible,
  .site-nav a.active {
    background: rgba(255, 255, 255, 0.04);
  }

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

  .hero {
    padding-top: 2.25rem;
  }

  .hero-home {
    min-height: auto;
    padding: 1.6rem;
  }

  .hero h1 {
    max-width: none;
  }

  .resource-card,
  .essay-entry {
    grid-template-columns: 1fr;
  }

  .page-footer {
    padding-bottom: 1.35rem;
  }
}

@media (max-width: 560px) {
  .page {
    width: min(calc(100% - 1rem), var(--max-width));
    padding-top: calc(var(--nav-height) + 2rem);
  }

  .hero h1 {
    font-size: clamp(2.7rem, 16vw, 4rem);
  }

  .hero-home::before {
    background:
      linear-gradient(180deg, rgba(8, 9, 10, 0.82), rgba(8, 9, 10, 0.88)),
      url("background-image-1600.jpg") center center / cover no-repeat;
  }

  .hero-copy {
    font-size: 1rem;
  }

  .tile,
  .card,
  .feature-card,
  .book-card {
    border-radius: 1.35rem;
    padding: 1.1rem;
  }

  .book-row {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(84%, 1fr);
    overflow-x: auto;
    padding-bottom: 0.35rem;
    scroll-snap-type: x proximity;
  }

  .book-card {
    scroll-snap-align: start;
  }

  .footer-inner {
    font-size: 0.86rem;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .page {
    opacity: 1 !important;
    transform: none !important;
  }
}