/* Warpriest: blueprint drafting in wine ink.
   Six colors, all defined on :root:
   --ink    #1d0c13  page background
   --panel  #2b121d  figure and simulator stage
   --grid   #511f34  drafting grid and hairline rules (decorative)
   --muted  #d4a6b9  secondary text, dimension lines, control borders
   --paper  #f9e7ee  primary text
   --rose   #ec659d  accent, links, sun, focus-friendly controls
*/

:root {
  --ink: #1d0c13;
  --panel: #2b121d;
  --grid: #511f34;
  --muted: #d4a6b9;
  --paper: #f9e7ee;
  --rose: #ec659d;
  --font-display: ui-rounded, "SF Pro Rounded", ui-sans-serif, system-ui, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  --gutter: 16px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  background-color: var(--ink);
}

body {
  margin: 0;
  min-width: 0;
  background-color: var(--ink);
  background-image:
    linear-gradient(to right, var(--grid) 2px, transparent 2px),
    linear-gradient(to bottom, var(--grid) 2px, transparent 2px),
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-wrap: break-word;
}

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

a {
  color: var(--rose);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

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

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

main:focus {
  outline: none;
}

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -4rem;
  z-index: 10;
  padding: 10px 18px;
  border-radius: 999px;
  background-color: var(--rose);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 700;
  text-decoration: none;
}

.skip-link:hover {
  color: var(--ink);
}

.skip-link:focus {
  top: 12px;
}

h1,
h2,
h3 {
  margin: 0 0 0.6em;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--paper);
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.1rem, 1.3rem + 3.6vw, 4.25rem);
  line-height: 1.04;
}

h2 {
  font-size: clamp(1.6rem, 1.15rem + 1.9vw, 2.6rem);
}

h3 {
  font-size: clamp(1.2rem, 1.02rem + 0.7vw, 1.5rem);
  line-height: 1.2;
}

p {
  max-width: 68ch;
  margin: 0 0 1em;
}

ul,
ol {
  max-width: 68ch;
  margin: 0 0 1em;
  padding-left: 1.25em;
}

li + li {
  margin-top: 0.5em;
}

ol.steps li::marker {
  color: var(--rose);
  font-family: var(--font-display);
  font-weight: 700;
}

strong {
  color: var(--paper);
  font-weight: 700;
}

fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.kicker {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.lead {
  max-width: 60ch;
  font-size: clamp(1.08rem, 1rem + 0.4vw, 1.3rem);
  color: var(--paper);
}

.wrap {
  width: 100%;
  max-width: 76rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.sheet {
  padding-block: clamp(48px, 7vw, 96px);
  border-top: 1px solid var(--grid);
}

.page-head {
  padding-block: clamp(48px, 8vw, 104px) clamp(32px, 4vw, 56px);
}

/* Header and navigation */

.site-header {
  background-color: var(--ink);
  border-bottom: 1px solid var(--grid);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-block: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.brand:hover {
  color: var(--rose);
}

.brand-mark {
  width: 36px;
  height: 36px;
  flex: none;
}

.brand-ring {
  fill: none;
  stroke: var(--muted);
  stroke-width: 1.5;
}

.brand-sun {
  fill: var(--rose);
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  max-width: none;
  list-style: none;
}

.site-nav li + li {
  margin-top: 0;
}

.site-nav a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 180ms var(--ease), background-color 180ms var(--ease);
}

.site-nav a:hover {
  color: var(--paper);
  background-color: var(--panel);
}

.site-nav a[aria-current="page"] {
  color: var(--ink);
  background-color: var(--rose);
}

.site-nav a[aria-current="page"]:hover {
  color: var(--ink);
  background-color: var(--paper);
}

/* Hero */

.hero {
  display: grid;
  gap: 40px;
  align-items: center;
  padding-block: clamp(40px, 7vw, 96px);
}

@media (min-width: 60rem) {
  .hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 56px;
  }
}

.hero-figure {
  position: relative;
  margin: 0;
  padding: 12px;
  border: 1px solid var(--muted);
  background-color: var(--ink);
}

.hero-art {
  width: 100%;
  height: auto;
}

.hero-figure figcaption,
.figure figcaption,
.sim-figure figcaption {
  max-width: 60ch;
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--muted);
}

@media (prefers-reduced-motion: no-preference) {
  .hero-art {
    animation: rise 900ms var(--ease) both;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* Buttons */

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 22px;
  border: 2px solid var(--rose);
  border-radius: 999px;
  background-color: var(--rose);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease);
}

.button:hover {
  background-color: var(--paper);
  border-color: var(--paper);
  color: var(--ink);
}

.button.ghost {
  background-color: transparent;
  border-color: var(--muted);
  color: var(--paper);
}

.button.ghost:hover {
  background-color: var(--panel);
  border-color: var(--paper);
  color: var(--paper);
}

/* Plates and principles */

.plates {
  display: grid;
  border-top: 1px solid var(--muted);
}

@media (min-width: 52rem) {
  .plates {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.plate {
  padding: 28px 24px 32px;
  border-bottom: 1px solid var(--grid);
}

@media (min-width: 52rem) {
  .plate {
    border-bottom: 0;
    border-right: 1px solid var(--grid);
  }

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

.plate-no {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.plate h3 {
  margin-bottom: 0.5em;
}

.plate p:last-child {
  margin-bottom: 0;
}

.principles {
  display: grid;
  margin: 0;
  max-width: none;
}

@media (min-width: 48rem) {
  .principles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 48px;
  }
}

.principles > div {
  padding: 22px 0;
  border-top: 1px solid var(--grid);
}

.principles dt {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--paper);
}

.principles dd {
  margin: 0;
  max-width: 60ch;
  color: var(--muted);
}

.sheet-index {
  margin: 0;
  padding: 0;
  max-width: none;
  list-style: none;
  border-top: 1px solid var(--muted);
}

.sheet-index li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--grid);
}

.sheet-index li + li {
  margin-top: 0;
}

.sheet-no {
  grid-row: span 2;
  padding-top: 4px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.sheet-index a {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
}

.sheet-index p {
  margin: 4px 0 0;
  color: var(--muted);
}

/* Dimension marks */

.dim {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 26px;
  margin: 28px 0;
  color: var(--muted);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background-image:
    linear-gradient(var(--muted), var(--muted)),
    linear-gradient(var(--muted), var(--muted)),
    linear-gradient(var(--muted), var(--muted));
  background-repeat: no-repeat;
  background-size: 100% 1px, 1px 14px, 1px 14px;
  background-position: center, left center, right center;
}

.dim > span {
  padding: 0 0.8em;
  background-color: var(--ink);
}

/* Title block and footer */

.site-footer {
  padding-block: 48px 56px;
  border-top: 1px solid var(--grid);
}

.site-footer .wrap {
  display: grid;
  gap: 28px;
}

.title-block {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  max-width: none;
  border: 2px solid var(--muted);
}

@media (min-width: 48rem) {
  .title-block {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.title-block > div {
  min-width: 0;
  padding: 12px 14px;
  border-right: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}

.title-block dt {
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.title-block dd {
  margin: 4px 0 0;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--paper);
}

.footer-line {
  margin: 0;
  color: var(--muted);
}

/* Figures and inline SVG classes */

.figure {
  margin: 2.5rem 0;
  padding: 16px;
  border: 1px solid var(--muted);
  background-color: var(--panel);
}

.figure svg {
  width: 100%;
  height: auto;
  max-width: 640px;
  margin-inline: auto;
}

.orbit-line {
  fill: none;
  stroke: var(--muted);
  stroke-width: 1.5;
}

.orbit-path {
  fill: none;
  stroke: var(--muted);
  stroke-width: 1.25;
  stroke-dasharray: 6 6;
}

.axis-line {
  fill: none;
  stroke: var(--muted);
  stroke-width: 1;
  stroke-dasharray: 10 6;
}

.ext-line {
  fill: none;
  stroke: var(--muted);
  stroke-width: 1;
  stroke-dasharray: 3 4;
}

.dim-line {
  fill: none;
  stroke: var(--muted);
  stroke-width: 1.25;
}

.frame {
  fill: none;
  stroke: var(--muted);
  stroke-width: 1.5;
}

.sun {
  fill: var(--rose);
}

.sun-halo {
  fill: none;
  stroke: var(--rose);
  stroke-width: 1.5;
  stroke-dasharray: 2 6;
}

.body-dot {
  fill: var(--paper);
  stroke: var(--ink);
  stroke-width: 2;
}

.center-mark {
  fill: var(--paper);
}

.sector-a {
  fill: var(--rose);
  fill-opacity: 0.25;
  stroke: var(--rose);
  stroke-width: 1.5;
}

.sector-b {
  fill: var(--paper);
  fill-opacity: 0.12;
  stroke: var(--paper);
  stroke-width: 1.5;
}

.svg-label {
  fill: var(--paper);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
}

.svg-label.small {
  fill: var(--muted);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* Orbit lab */

.sim-figure {
  margin: 0;
}

.sim-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--muted);
  background-color: var(--panel);
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
}

.sim-stage svg,
.sim-stage canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
}

.sim-static .svg-label {
  font-size: 28px;
}

.sim-clock {
  margin: 14px 0 0;
  font-family: var(--font-display);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.sim-clock span {
  color: var(--paper);
  font-weight: 700;
}

.sim-controls {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

@media (min-width: 46rem) {
  .sim-controls {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  }

  .speed-control {
    grid-column: 1 / -1;
  }
}

.sim-controls fieldset {
  padding: 14px 16px 18px;
  border: 1px solid var(--grid);
}

.sim-controls legend {
  padding: 0 8px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.motion-note {
  margin: 14px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--rose);
  font-size: 0.95rem;
  color: var(--paper);
  max-width: none;
}

.speed-control {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.speed-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.speed-head label {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--paper);
}

.readout {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--rose);
  font-variant-numeric: tabular-nums;
}

.speed-control input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 32px;
  margin: 0;
  background: transparent;
  cursor: pointer;
}

.speed-control input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background-color: var(--muted);
}

.speed-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  margin-top: -10px;
  border: 3px solid var(--paper);
  border-radius: 50%;
  background-color: var(--rose);
}

.speed-control input[type="range"]::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background-color: var(--muted);
}

.speed-control input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: 3px solid var(--paper);
  border-radius: 50%;
  background-color: var(--rose);
}

.speed-scale {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: 0;
  max-width: none;
  font-size: 0.88rem;
  color: var(--muted);
}

.check {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  font-weight: 600;
  color: var(--paper);
  cursor: pointer;
}

.check input[type="checkbox"] {
  -webkit-appearance: none;
  appearance: none;
  display: grid;
  place-content: center;
  flex: none;
  width: 24px;
  height: 24px;
  margin: 0;
  border: 2px solid var(--muted);
  border-radius: 6px;
  background-color: var(--ink);
  cursor: pointer;
}

.check input[type="checkbox"]:checked {
  border-color: var(--rose);
  background-color: var(--rose);
}

.sim-status {
  min-height: 3.2em;
  margin: 18px 0 0;
  padding: 10px 14px;
  border: 1px solid var(--grid);
  color: var(--paper);
  max-width: none;
}

.notice {
  margin: 18px 0 0;
  padding: 12px 14px;
  border: 1px solid var(--muted);
  color: var(--paper);
  max-width: none;
}

/* Tables and glossary */

.contact-address {
  margin: 8px 0 28px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.1rem + 2vw, 2.6rem);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.data-table {
  width: 100%;
  margin: 0 0 1em;
  border-collapse: collapse;
}

.data-table caption {
  caption-side: top;
  padding-bottom: 12px;
  text-align: left;
  color: var(--muted);
}

.data-table th,
.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--grid);
  text-align: left;
  vertical-align: top;
}

.data-table th {
  border-bottom: 1px solid var(--muted);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.data-table td {
  font-variant-numeric: tabular-nums;
  color: var(--paper);
}

.data-table td:first-child {
  font-family: var(--font-display);
  font-weight: 700;
}

@media (max-width: 40rem) {
  .data-table,
  .data-table tbody,
  .data-table tr,
  .data-table td {
    display: block;
    width: 100%;
  }

  .data-table thead {
    display: none;
  }

  .data-table tr {
    padding: 12px 0;
    border-bottom: 1px solid var(--grid);
  }

  .data-table td {
    padding: 4px 0;
    border: 0;
  }

  .data-table td::before {
    content: attr(data-label);
    display: block;
    font-family: var(--font-display);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
  }
}

.glossary {
  margin: 0;
  max-width: 70ch;
}

.glossary > div {
  padding: 18px 0;
  border-top: 1px solid var(--grid);
}

.glossary dt {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--paper);
}

.glossary dd {
  margin: 0;
  color: var(--muted);
}

/* Motion: every transition and animation has a static form */

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

  .hero-art {
    animation: none;
  }

  .button,
  .site-nav a,
  .brand {
    transition: none;
  }
}