:root {
  --bg: #efece3;
  --ink: #1a1b18;
  --mute: #6a6b65;
  --rule: #cfcbbf;
  --card: #ffffff;
  --accent: #1a1b18;
  --ok: #1f6b3a;
  --warn: #8a6d1b;
  --bad: #a8352a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial,
    sans-serif;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  line-height: 1.55;
}

figure {
  margin: 0;
}

body.page-submit,
body.page-guide {
  line-height: 1.6;
}

img {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.wrap {
  margin: 0 auto;
  padding: 48px 28px 72px;
}

body.page-home .wrap {
  max-width: 1100px;
}

body.page-submit .wrap,
body.page-guide .wrap {
  max-width: 760px;
}

@media (max-width: 820px) {
  .wrap {
    padding: 32px 20px 56px;
  }
}

header.top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 28px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--rule);
  flex-wrap: wrap;
  gap: 12px;
}

header.top .brand {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.02em;
}

h1,
.brand {
  color: var(--ink);
  text-transform: uppercase;
}

/* Decorative asterisks are CSS-only so the aria-label can stay clean. */
header.top .brand::before {
  content: '**';
  margin-right: 2px;
}

header.top .brand::after {
  content: '**';
  margin-left: 2px;
}

body.page-submit header.top .brand a,
body.page-guide header.top .brand a {
  text-decoration: none;
  color: inherit;
}

header.top nav a {
  color: var(--mute);
  text-decoration: none;
  margin-left: 20px;
  font-size: 14px;
}

header.top nav a:hover {
  color: var(--ink);
}

h1 {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}

body.page-home h1 {
  font-size: 54px;
  line-height: 1.02;
}

body.page-submit h1,
body.page-guide h1 {
  font-size: 42px;
  line-height: 1.05;
}

h1 sup {
  font-size: 0.55em;
  top: -0.45em;
  position: relative;
}

.tagline {
  font-size: 18px;
  color: var(--mute);
}

body.page-home .tagline {
  margin: 0 0 28px;
}

body.page-submit .tagline,
body.page-guide .tagline {
  margin: 0 0 32px;
}

h2 {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--mute);
  margin: 36px 0 12px;
  font-weight: 700;
}

p {
  margin: 0 0 14px;
}

ul {
  padding-left: 20px;
  margin: 0 0 14px;
}

li {
  margin-bottom: 6px;
}

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-thickness: 2px;
}

code,
kbd {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.92em;
  background: #e4e1d6;
  padding: 1px 6px;
  border-radius: 3px;
}

.btn {
  display: inline-block;
  padding: 12px 20px;
  background: var(--ink);
  color: var(--bg);
  text-decoration: none;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 14px;
  letter-spacing: 0.04em;
  border: 1px solid var(--ink);
  cursor: pointer;
}

.btn:hover {
  background: #000;
}

footer {
  margin-top: 72px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--mute);
  flex-wrap: wrap;
  gap: 10px;
}

footer a {
  color: var(--mute);
}

footer .retro {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  letter-spacing: 0.04em;
}

.grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
}

@media (max-width: 820px) {
  .grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 8px;
}

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

.btn.ghost:hover {
  background: var(--ink);
  color: var(--bg);
}

.btn small {
  display: block;
  font-size: 11px;
  color: inherit;
  opacity: 0.7;
  font-weight: normal;
  margin-top: 2px;
  letter-spacing: 0.02em;
}

.meta {
  font-size: 13px;
  color: var(--mute);
  margin-top: 6px;
}

.shots {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.shot {
  background: var(--card);
  border: 1px solid var(--rule);
  padding: 14px;
}

.shot img {
  display: block;
  width: 100%;
  height: auto;
}

.shot figcaption {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 12px;
  color: var(--mute);
  margin-top: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.shot-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 480px) {
  .shot-row {
    grid-template-columns: 1fr;
  }
}

.seed-example {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  background: #e4e1d6;
  padding: 10px 14px;
  margin: 12px 0;
  font-size: 13px;
  color: var(--ink);
  border-left: 3px solid var(--ink);
}

.leaderboards {
  margin-top: 72px;
  padding-top: 40px;
  border-top: 1px solid var(--rule);
}

.leaderboards header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.leaderboards h2 {
  font-size: 28px;
  text-transform: none;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

.leaderboards .sub {
  font-size: 13px;
  color: var(--mute);
}

.board-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

@media (max-width: 820px) {
  .board-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

.board h3 {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 10px;
  font-weight: 700;
}

table.scores {
  width: 100%;
  border-collapse: collapse;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 13px;
}

table.scores th,
table.scores td {
  padding: 10px 8px;
  text-align: left;
  border-bottom: 1px solid var(--rule);
  white-space: nowrap;
}

table.scores th {
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  border-bottom: 1px solid var(--ink);
}

table.scores td.num,
table.scores th.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

table.scores td.rank {
  color: var(--mute);
  width: 1%;
}

table.scores td.initials {
  font-weight: 700;
  letter-spacing: 0.08em;
}

table.scores td.flag {
  width: 1%;
  font-size: 16px;
}

table.scores tr.empty td {
  text-align: center;
  color: var(--mute);
  padding: 22px 8px;
  font-style: italic;
  border-bottom: none;
}

.drop {
  border: 2px dashed var(--rule);
  background: var(--card);
  padding: 32px 20px;
  display: block;
  text-align: center;
  transition:
    border-color 120ms,
    background 120ms;
  cursor: pointer;
}

.drop.is-drag {
  border-color: var(--ink);
  background: #faf7ea;
}

.drop input[type='file'] {
  display: none;
}

.drop .hint {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 13px;
  color: var(--mute);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.drop .big {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 18px;
  margin: 6px 0 2px;
}

.drop button {
  margin-top: 12px;
  font: inherit;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 14px;
  padding: 10px 18px;
  background: var(--ink);
  color: var(--bg);
  border: 1px solid var(--ink);
  cursor: pointer;
}

.drop button:hover {
  background: #000;
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
}

@media (max-width: 640px) {
  .cards {
    grid-template-columns: 1fr;
  }
}

.result-card {
  background: var(--card);
  border: 1px solid var(--rule);
  padding: 16px 18px;
}

.result-card h3 {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.badge {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 10px;
  letter-spacing: 0.12em;
  padding: 3px 8px;
  border: 1px solid;
  border-radius: 2px;
}

.badge.pass {
  color: var(--ok);
  border-color: var(--ok);
}

.badge.partial {
  color: var(--warn);
  border-color: var(--warn);
}

.badge.fail {
  color: var(--bad);
  border-color: var(--bad);
}

.badge.empty {
  color: var(--mute);
  border-color: var(--rule);
}

.fields {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 14px;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 14px;
}

.fields .k {
  color: var(--mute);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  align-self: center;
}

.fields .v {
  font-weight: 700;
}

.fields .v.initials {
  letter-spacing: 0.12em;
}

.issues {
  margin-top: 12px;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 12px;
  color: var(--bad);
  padding-left: 18px;
}

.issues li {
  margin-bottom: 2px;
}

.include {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.include input {
  width: 16px;
  height: 16px;
}

.include.disabled {
  color: var(--mute);
}

.form-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 28px 0 10px;
  flex-wrap: wrap;
}

.form-row label {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
}

.form-row input[type='text'] {
  font: inherit;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 14px;
  padding: 8px 10px;
  background: var(--card);
  border: 1px solid var(--rule);
  min-width: 220px;
}

.form-row input[type='text']:focus {
  outline: none;
  border-color: var(--ink);
}

.submit-bar {
  margin-top: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn[disabled] {
  background: var(--mute);
  border-color: var(--mute);
  cursor: not-allowed;
}

.status-line {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 13px;
  color: var(--mute);
}

.status-line.err {
  color: var(--bad);
}

.status-line.ok {
  color: var(--ok);
}

.done-block {
  background: var(--card);
  border: 1px solid var(--rule);
  padding: 18px 20px;
  margin-top: 24px;
}

.done-block h3 {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  margin: 0 0 10px;
  font-size: 16px;
}

.done-block ul {
  margin: 0 0 12px;
  padding-left: 20px;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 14px;
}

.hidden {
  display: none !important;
}

body.page-guide h2 {
  font-size: 26px;
  letter-spacing: -0.01em;
  margin: 56px 0 16px;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
  text-transform: none;
  color: var(--ink);
}

body.page-guide h3 {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--mute);
  margin: 36px 0 10px;
  font-weight: 700;
}

body.page-guide ul,
body.page-guide ol {
  padding-left: 22px;
  margin: 0 0 16px;
}

body.page-guide li {
  margin-bottom: 8px;
}

body.page-guide li > ul,
body.page-guide li > ol {
  margin-top: 6px;
  margin-bottom: 0;
}

body.page-guide figure.shot {
  background: black;
  margin: 20px 0 28px;
}

body.page-guide figure.shot img {
  max-width: 480px;
  margin: 0 auto;
}

body.page-guide figure.shot figcaption {
  text-align: center;
}

body.page-guide .table-wrap {
  overflow-x: auto;
  margin: 16px 0 24px;
}

body.page-guide table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

body.page-guide table th,
body.page-guide table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

body.page-guide table th {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  border-bottom: 1px solid var(--ink);
  white-space: nowrap;
}

body.page-guide table code,
body.page-guide table kbd {
  font-size: 0.88em;
}

body.page-guide .colophon {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--mute);
  font-style: italic;
}

.note {
  background: #e4e1d6;
  border-left: 3px solid var(--mute);
  color: var(--mute);
  padding: 12px 14px;
  margin: 20px 0;
  font-size: 13px;
}