:root {
  --ink: #f7fbff;
  --muted: #abbccc;
  --blue: #6aa9d9;
  --deep-blue: #071c2d;
  --line: rgba(129, 186, 225, 0.25);
  --line-strong: rgba(129, 186, 225, 0.52);
  --grid: rgba(89, 153, 196, 0.065);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--muted);
  background-color: var(--deep-blue);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px),
    linear-gradient(rgba(89, 153, 196, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(89, 153, 196, 0.025) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px, 16px 16px, 16px 16px;
  font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 14px;
  line-height: 1.65;
}

a { color: inherit; }

.page-shell {
  width: min(840px, calc(100% - 48px));
  margin: 0 auto;
  border-inline: 1px solid var(--line);
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 14px;
  min-height: 84px;
  padding: 22px 32px;
  border-bottom: 1px solid var(--line-strong);
}

.wordmark {
  display: flex;
  flex-direction: column;
  color: var(--ink);
  text-decoration: none;
}

.section-heading p {
  margin: 0;
  color: var(--blue);
  font-size: inherit;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.name {
  font-size: inherit;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1;
}

.social-grid {
  display: flex;
  gap: 10px;
  align-self: center;
  margin: 0;
}

.social-grid a,
.social-grid .social-link {
  position: relative;
  display: inline-block;
  flex: 0 0 auto;
  color: var(--blue);
  text-decoration: none;
  transition: color .18s ease;
}

.social-grid a:hover,
.social-grid a:focus-visible,
.social-grid .social-link:hover,
.social-grid .social-link:focus-visible { color: var(--ink); }
.social-grid .coming-soon::after {
  position: absolute;
  z-index: 2;
  top: calc(100% + 7px);
  left: 50%;
  padding: 3px 6px;
  color: var(--ink);
  background: var(--deep-blue);
  border: 1px solid var(--line-strong);
  content: attr(data-tooltip);
  font-size: 11px;
  line-height: 1.4;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%);
  transition: opacity .15s ease;
  white-space: nowrap;
}
.social-grid .coming-soon:hover::after,
.social-grid .coming-soon:focus-visible::after { opacity: 1; }
.ruled-section { padding: 30px 32px; border-bottom: 1px solid var(--line-strong); }
.intro { padding-block: 24px; }

.section-heading {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 18px;
}

h2 {
  margin: 0;
  color: #94c8ed;
  font-size: inherit;
  font-weight: 700;
  letter-spacing: 0;
  line-height: inherit;
}

.project-list, .plain-list, .check-list, .ranked-list { margin: 0; padding: 0; list-style: none; }

.intro-list { max-width: 820px; margin: 0; padding-left: 20px; }
.intro-list li { padding: 3px 0 3px 6px; }
.intro-list li::marker { color: var(--blue); }
.intro-list p { margin: 0; }

.project-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: start;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

.project-list p { margin: 0; }
.project-links { display: flex; gap: 12px; }
.project-links .file-link { min-width: 0; }
strong { color: var(--ink); font-weight: 500; }

.file-link, .status {
  min-width: 84px;
  color: var(--blue);
  font-size: inherit;
  letter-spacing: .1em;
  text-align: right;
  text-decoration: none;
  text-transform: uppercase;
}

.file-link:hover { color: var(--ink); }
.status { color: var(--muted); }

.goal-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.goal-card { min-width: 0; }
.goal-card h3 {
  margin: 0;
  padding: 8px 0;
  color: var(--blue);
  border-top: 2px solid var(--line-strong);
  border-bottom: 2px solid var(--line-strong);
  font-size: inherit;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  writing-mode: horizontal-tb;
}

.goal-content, .check-list { padding: 12px 0 0; }
.progress-list-content { padding: 12px 0 0; }
.progress-list-content > .check-list,
.finished-list .check-list { padding: 0; }
.finished-list { margin-top: 12px; }
.finished-list summary {
  padding: 7px 0;
  color: var(--blue);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}
.finished-list[open] summary { margin-bottom: 4px; }
.score-group + .score-group { margin-top: 18px; }
.method {
  margin: 0;
  padding: 8px 0;
  color: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.ranked-list li { display: flex; justify-content: space-between; padding: 7px 0; color: var(--ink); border-bottom: 1px solid var(--line); }
.ranked-list span { color: var(--blue); font-size: inherit; }
.check-list li { position: relative; padding: 5px 0 5px 20px; border-bottom: 1px solid var(--line); }
.check-list li::before { position: absolute; left: 0; content: "○"; color: var(--blue); }
.check-list .done { color: var(--muted); text-decoration: line-through; text-decoration-color: var(--blue); }
.check-list .done::before { content: "✓"; }

.closing-grid { display: grid; grid-template-columns: 1fr 1fr; }
.closing-grid > section:first-child { border-right: 1px solid var(--line-strong); }
.closing-grid .section-heading { display: grid; }
.closing-grid .section-heading p { margin-bottom: 0; }
.closing-grid h2 { font-size: inherit; }
.plain-list li { padding: 11px 0; border-top: 1px solid var(--line); }

footer { display: flex; justify-content: space-between; padding: 18px 32px; color: var(--blue); font-size: inherit; text-transform: uppercase; }
footer p { margin: 0; }
footer a { text-decoration: none; }

@media (max-width: 860px) {
  .goal-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .page-shell { width: calc(100% - 24px); }
  .site-header { align-items: center; padding: 20px 18px; }
  .social-grid { align-self: flex-end; display: flex; }
  .ruled-section { padding: 26px 18px; }
  .section-heading { grid-template-columns: 28px 1fr; gap: 8px; }
  .project-list li { grid-template-columns: 1fr; gap: 12px; }
  .file-link, .status { text-align: left; }
  .goal-grid { grid-template-columns: 1fr; }
  .goal-card { min-height: 0; }
  .closing-grid { grid-template-columns: 1fr; }
  .closing-grid > section:first-child { border-right: 0; }
  footer { padding: 18px; }
}

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