:root {
  --ink: #07131a;
  --ink-soft: #0d2028;
  --panel: #122a33;
  --paper: #f3efe5;
  --paper-dim: #d7d2c6;
  --line: rgba(243, 239, 229, 0.18);
  --built: #e4545f;
  --green: #83c99b;
  --water: #62aee8;
  --sun: #e7b85d;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
  --radius: 18px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--paper);
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    var(--ink);
  background-size: 44px 44px;
  font-family: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--sun);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 0.7rem 1rem;
  color: var(--ink);
  background: var(--paper);
  transform: translateY(-150%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 19, 26, 0.88);
  backdrop-filter: blur(16px);
}

.nav {
  width: min(calc(100% - 2rem), var(--max));
  min-height: 70px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 30px;
  height: 30px;
  border: 1px solid var(--paper-dim);
  border-radius: 50%;
  background:
    radial-gradient(circle at 65% 35%, var(--sun) 0 8%, transparent 9%),
    linear-gradient(145deg, transparent 42%, var(--green) 43% 48%, transparent 49%),
    var(--ink-soft);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.88rem;
}

.nav-links a {
  color: var(--paper-dim);
  text-decoration: none;
}

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

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

.hero {
  min-height: 760px;
  padding: 7rem 0 5rem;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--green);
  font: 700 0.76rem/1.3 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

h1 {
  max-width: 820px;
  margin-bottom: 1.5rem;
  font-size: clamp(3.1rem, 7vw, 6.7rem);
  font-weight: 700;
}

h2 {
  max-width: 820px;
  font-size: clamp(2.1rem, 4.5vw, 4.25rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.65rem);
}

.hero-copy {
  max-width: 690px;
  color: var(--paper-dim);
  font-size: clamp(1.05rem, 1.8vw, 1.28rem);
}

.hero-actions,
.action-row {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.button {
  display: inline-flex;
  min-height: 48px;
  padding: 0.75rem 1rem;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  border: 1px solid var(--paper);
  border-radius: 999px;
  color: var(--ink);
  background: var(--paper);
  font-weight: 800;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.secondary {
  color: var(--paper);
  background: transparent;
  border-color: var(--line);
}

.map-window {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  transform: rotate(1.4deg);
}

.map-window::before {
  content: "ROME WINDOW · CRS84 · 12.46,41.885,12.515,41.925";
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  padding: 0.65rem 0.85rem;
  color: var(--paper);
  background: rgba(7, 19, 26, 0.84);
  font: 700 0.66rem/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.08em;
}

.map-window img {
  width: 100%;
  min-height: 420px;
  object-fit: cover;
}

.map-caption {
  margin: 0;
  padding: 1rem 1.15rem;
  color: var(--paper-dim);
  font: 0.78rem/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.fact-strip {
  padding: 1rem 0;
  border-block: 1px solid var(--line);
}

.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.fact {
  padding: 1.2rem 1.5rem;
  border-right: 1px solid var(--line);
}

.fact:last-child {
  border-right: 0;
}

.fact strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--paper);
  font: 700 clamp(1.4rem, 3vw, 2.25rem)/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.fact span {
  color: var(--paper-dim);
  font-size: 0.82rem;
}

.section {
  padding: clamp(5rem, 10vw, 9rem) 0;
}

.section-intro {
  max-width: 760px;
  margin-bottom: 3rem;
  color: var(--paper-dim);
  font-size: 1.05rem;
}

.workload {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 1.5rem;
}

.workload-tabs {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.workload-tab {
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--paper-dim);
  background: transparent;
  font: inherit;
  font-weight: 800;
  text-align: left;
  cursor: pointer;
}

.workload-tab[aria-selected="true"] {
  color: var(--ink);
  background: var(--green);
  border-color: var(--green);
}

.workload-panel {
  padding: clamp(1.4rem, 4vw, 3rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(18, 42, 51, 0.96), rgba(13, 32, 40, 0.96));
}

.workload-panel[hidden] {
  display: none;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.metric {
  min-height: 155px;
  padding: 1.25rem;
  border-left: 4px solid var(--green);
  background: rgba(7, 19, 26, 0.45);
}

.metric.built {
  border-color: var(--built);
}

.metric.water {
  border-color: var(--water);
}

.metric strong {
  display: block;
  margin-bottom: 0.5rem;
  font: 700 clamp(1.55rem, 3vw, 2.6rem)/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.metric span {
  color: var(--paper-dim);
  font-size: 0.86rem;
}

.caveat {
  margin-top: 1.5rem;
  padding: 1rem 1.15rem;
  border: 1px solid rgba(231, 184, 93, 0.38);
  border-radius: 12px;
  color: var(--paper-dim);
  background: rgba(231, 184, 93, 0.08);
}

.comparison {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

th,
td {
  padding: 1.1rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--green);
  font: 700 0.72rem/1.3 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

td {
  color: var(--paper-dim);
}

td strong {
  color: var(--paper);
}

.reproduce-grid {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 2rem;
  align-items: start;
}

.reproduce-grid > *,
.workload > * {
  min-width: 0;
}

.caveat code {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.steps li {
  position: relative;
  padding: 0 0 1.4rem 3.2rem;
  color: var(--paper-dim);
  counter-increment: steps;
}

.steps li::before {
  content: counter(steps, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  color: var(--green);
  font: 700 0.85rem/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.code-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #061016;
}

.code-label {
  padding: 0.7rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
  color: var(--paper-dim);
  font: 0.72rem/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.copy-button {
  border: 0;
  color: var(--green);
  background: transparent;
  font: inherit;
  cursor: pointer;
}

pre {
  margin: 0;
  padding: 1.2rem;
  overflow-x: auto;
  color: var(--paper);
  font: 0.86rem/1.7 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
}

.article-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-soft);
  transition: transform 180ms ease, border-color 180ms ease;
}

.article-card:hover {
  transform: translateY(-4px);
  border-color: rgba(131, 201, 155, 0.65);
}

.article-card a {
  text-decoration: none;
}

.article-card img {
  width: 100%;
  aspect-ratio: 1200 / 627;
  object-fit: cover;
  background: var(--panel);
}

.article-card-copy {
  padding: 1.25rem;
}

.article-number {
  color: var(--green);
  font: 700 0.74rem/1.3 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.1em;
}

.article-card h3 {
  margin: 0.55rem 0 0;
}

.cta {
  padding: clamp(2rem, 6vw, 4rem);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2rem;
  border: 1px solid rgba(131, 201, 155, 0.5);
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(131, 201, 155, 0.16), transparent 55%),
    var(--ink-soft);
}

.cta h2 {
  margin-bottom: 0.6rem;
}

.cta p {
  max-width: 720px;
  margin: 0;
  color: var(--paper-dim);
}

.site-footer {
  padding: 3rem 0;
  border-top: 1px solid var(--line);
  color: var(--paper-dim);
  font-size: 0.84rem;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
}

.article-main {
  width: min(calc(100% - 2rem), 850px);
  margin: 0 auto;
  padding: 6rem 0;
}

.article-main h1 {
  font-size: clamp(2.8rem, 7vw, 5.8rem);
}

.article-lead-image {
  margin: 2.5rem 0 3rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.article-body {
  color: var(--paper-dim);
  font-size: 1.08rem;
}

.article-body p {
  margin: 0 0 1.35rem;
}

.article-body a {
  color: var(--green);
}

.article-body strong {
  color: var(--paper);
}

.article-nav {
  margin-top: 4rem;
  padding-top: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  border-top: 1px solid var(--line);
}

.article-nav a {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  text-decoration: none;
}

.article-nav a:last-child {
  text-align: right;
}

.source-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.source-list a {
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--paper-dim);
  text-decoration: none;
  font-size: 0.82rem;
}

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

  .hero,
  .workload,
  .reproduce-grid,
  .cta {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 5rem;
  }

  .map-window {
    transform: none;
  }

  .facts,
  .metric-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .workload-tabs {
    flex-direction: row;
  }

  .workload-tab {
    flex: 1;
    text-align: center;
  }

  .cta {
    align-items: start;
  }
}

@media (max-width: 580px) {
  .facts,
  .metric-grid,
  .article-grid,
  .article-nav {
    grid-template-columns: 1fr;
  }

  .fact {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .article-nav a:last-child {
    text-align: left;
  }

  .footer-grid {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}