/* Arctic Heritage: tokens from Branding/Arctic_Heritage/02_Website/theme.css (illustrated v2). */
@font-face {
  font-family: "Arvo";
  src: url("../fonts/arvo-700.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Arvo";
  src: url("../fonts/arvo-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --background: #101E2B;
  --background-deep: #09131D;
  --surface: #192D3D;
  --surface-glass: rgba(25, 45, 61, 0.92);
  --border: #36586B;
  --text: #EAF3F6;
  --text-muted: #B3C6D0;
  --accent: #80C7DD;
  --accent-text: #101E2B;
  --decorative-slate: #708696;
  --font-heading: "Arvo", Rockwell, Georgia, serif;
  --font-body: Arial, Helvetica, sans-serif;
  --radius-small: 4px;
  --radius-card: 12px;
  --wrap: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.55;
}
h1, h2, h3 { font-family: var(--font-heading); font-weight: 700; line-height: 1.1; margin: 0 0 .5em; }
p { margin: 0 0 .75em; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--text); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; border-radius: 2px; }
img, svg { display: block; max-width: 100%; }

.wrap { width: min(var(--wrap), 100% - 2rem); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 0; background: var(--accent); color: var(--accent-text); padding: .5rem 1rem; z-index: 10; }
.skip:focus { left: 1rem; }

/* Header -------------------------------------------------------------------------------- */
.site-header { background: var(--background-deep); border-bottom: 1px solid #1d3344; }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .9rem; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .9rem; text-decoration: none; color: var(--text); }
.brand-mark { width: 56px; height: 56px; flex: none; }
.brand-text { display: grid; }
.brand-name { font-family: var(--font-heading); font-weight: 700; font-size: 1.6rem; text-transform: uppercase; letter-spacing: .01em; line-height: 1; }
.brand-tag { color: var(--accent); font-weight: 700; font-size: .72rem; text-transform: uppercase; letter-spacing: .2em; margin-top: .35rem; }
.nav { list-style: none; display: flex; align-items: center; gap: .25rem 1.25rem; margin: 0; padding: 0; flex-wrap: wrap; }
.nav a:not(.button) { color: var(--text-muted); text-decoration: none; font-weight: 700; font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; padding: .4rem 0; border-bottom: 2px solid transparent; }
.nav a:not(.button):hover, .nav a[aria-current="page"] { color: var(--text); border-bottom-color: var(--accent); }

/* Buttons ------------------------------------------------------------------------------- */
.button {
  display: inline-block; background: var(--accent); color: var(--accent-text);
  border: 2px solid var(--accent); border-radius: var(--radius-small);
  padding: .8rem 1.3rem; font-weight: 700; font-size: .9rem; text-transform: uppercase;
  letter-spacing: .06em; text-decoration: none; text-align: center;
}
.button:hover { background: var(--text); border-color: var(--text); color: var(--accent-text); }
.button-ghost { background: transparent; color: var(--text); border-color: var(--text-muted); }
.button-ghost:hover { background: rgba(234, 243, 246, .1); color: var(--text); border-color: var(--text); }
.button-small { padding: .5rem .9rem; font-size: .78rem; }
.button-block { display: block; width: 100%; margin-bottom: 1.25rem; }

/* Hero ---------------------------------------------------------------------------------- */
.hero {
  background:
    linear-gradient(90deg, rgba(9, 19, 29, .9) 0%, rgba(9, 19, 29, .55) 45%, rgba(9, 19, 29, 0) 75%),
    url("../img/landscape-background.webp") center 40% / cover no-repeat;
  min-height: min(78vh, 640px);
  display: flex; align-items: center;
}
.hero-short { min-height: min(60vh, 460px); }
.hero-inner { padding-block: 5rem; }
.hero h1 { font-size: clamp(3rem, 8vw, 6rem); text-transform: uppercase; max-width: 9ch; letter-spacing: -.01em; text-shadow: 0 2px 24px rgba(9, 19, 29, .6); }
.hero-short h1 { max-width: none; font-size: clamp(2.4rem, 6vw, 4.4rem); }
.eyebrow { color: var(--accent); font-weight: 700; font-size: .85rem; text-transform: uppercase; letter-spacing: .22em; margin-bottom: 1rem; text-shadow: 0 1px 10px rgba(9, 19, 29, .8); }
.lede { font-size: 1.2rem; color: var(--text); max-width: 36ch; text-shadow: 0 1px 12px rgba(9, 19, 29, .8); }
.actions { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1.75rem; }

/* Hub ----------------------------------------------------------------------------------- */
.hub {
  background:
    linear-gradient(rgba(16, 30, 43, .97), rgba(16, 30, 43, .86)),
    url("../img/landscape-background.webp") center bottom / cover no-repeat;
  padding-block: 3.5rem 4.5rem;
}
.hub-title { font-size: clamp(1.8rem, 4vw, 2.6rem); text-transform: uppercase; margin-bottom: 1.5rem; }
.cards { display: grid; gap: 1.25rem; margin-bottom: 1.25rem; }
.cards.three { grid-template-columns: repeat(3, 1fr); }
.cards.split { grid-template-columns: 2fr 1fr; align-items: start; }
.card {
  background: var(--surface-glass); border: 1px solid var(--border); border-radius: var(--radius-card);
  padding: 1.6rem; display: flex; flex-direction: column;
}
.label { color: var(--accent); font-family: var(--font-body); font-weight: 700; font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 1rem; }
.big { font-family: var(--font-heading); font-weight: 700; font-size: 1.75rem; text-transform: uppercase; margin-bottom: .5rem; display: flex; align-items: center; gap: .6rem; }
.stat { font-size: 1.1rem; margin-bottom: .25rem; }
.stat strong { font-size: 1.35rem; }
code { font-family: Consolas, "Courier New", monospace; font-size: .88em; color: var(--text); background: var(--background-deep); padding: .1em .35em; border-radius: var(--radius-small); overflow-wrap: anywhere; }
.muted { color: var(--text-muted); }
.small { font-size: .9rem; }
.card-link { margin-top: auto; padding-top: 1rem; font-weight: 700; font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; text-decoration: none; }
.section-title { font-family: var(--font-body); font-size: 1.15rem; text-transform: uppercase; letter-spacing: .04em; margin-bottom: 1rem; }
.plain { list-style: none; margin: 0 0 .75rem; padding: 0; display: grid; gap: .3rem; }
.links { list-style: none; margin: 0 0 1rem; padding: 0; display: grid; gap: .6rem; }

.dot { width: .7rem; height: .7rem; border-radius: 50%; background: var(--decorative-slate); flex: none; }
.dot-on { background: var(--accent); box-shadow: 0 0 0 0 rgba(128, 199, 221, .7); animation: pulse 2.4s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 .55rem rgba(128, 199, 221, 0); } 100% { box-shadow: 0 0 0 0 rgba(128, 199, 221, 0); } }
@media (prefers-reduced-motion: reduce) { .dot-on { animation: none; } }

.rows { list-style: none; margin: 0; padding: 0; }
.row { display: flex; justify-content: space-between; gap: 1rem; padding-block: .9rem; border-bottom: 1px solid var(--border); }
.row:last-child { border-bottom: 0; }
.row p { margin: 0; }
.row-title { font-weight: 700; text-transform: uppercase; letter-spacing: .03em; }
.row-driver { margin-top: .2rem !important; color: var(--accent); font-size: .85rem; font-weight: 700; }
.row-meta { text-align: right; color: var(--accent); font-weight: 700; white-space: nowrap; }
.empty { padding: 1rem 0 .25rem; }

/* Footer -------------------------------------------------------------------------------- */
.site-footer { background: var(--background-deep); border-top: 1px solid #1d3344; padding-block: 2rem; color: var(--text-muted); font-size: .92rem; }
.footer-row { display: grid; gap: .25rem; }
.fine { font-size: .82rem; }

/* Mobile menu -------------------------------------------------------------------------- */
.menu-toggle {
  display: none; background: transparent; color: var(--text); border: 2px solid var(--border);
  border-radius: var(--radius-small); padding: .45rem .9rem; font: 700 .8rem var(--font-body);
  text-transform: uppercase; letter-spacing: .1em; cursor: pointer;
}
.menu-toggle[aria-expanded="true"] { border-color: var(--accent); color: var(--accent); }

/* Content pages -------------------------------------------------------------------------- */
.page { padding-block: 2.5rem 4rem; }
.toc ol { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; margin: 0 0 1.5rem; counter-reset: toc; }
.toc li { counter-increment: toc; }
.toc a { display: inline-block; padding: .45rem .8rem; border: 1px solid var(--border); border-radius: 999px; color: var(--text-muted); text-decoration: none; font-weight: 700; font-size: .82rem; }
.toc a::before { content: counter(toc) ". "; color: var(--accent); }
.toc a:hover { color: var(--text); border-color: var(--accent); }
.step { margin-bottom: 1.25rem; display: block; }
.step h2 { font-size: 1.5rem; display: flex; align-items: center; gap: .75rem; }
.step-n { display: inline-grid; place-items: center; width: 2.1rem; height: 2.1rem; border-radius: 50%; background: var(--accent); color: var(--accent-text); font-family: var(--font-body); font-size: 1rem; flex: none; }
pre { background: var(--background-deep); border: 1px solid var(--border); border-radius: var(--radius-small); padding: .9rem 1rem; overflow-x: auto; margin: 0 0 .75rem; }
pre code { background: none; padding: 0; font-size: .95rem; }
.purchases { list-style: none; margin: 0; padding: 0; }
.purchases li { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding-block: 1rem; border-bottom: 1px solid var(--border); }
.purchases li:last-child { border-bottom: 0; }
.purchases p { margin: 0; }
.purchase-meta { display: flex; align-items: center; gap: 1rem; color: var(--accent); font-weight: 700; white-space: nowrap; }
.table-wrap { overflow-x: auto; margin-top: 1rem; }
table.mods { width: 100%; border-collapse: collapse; font-size: .95rem; }
.mods th { text-align: left; color: var(--accent); font-size: .75rem; text-transform: uppercase; letter-spacing: .12em; padding: .5rem .75rem; border-bottom: 2px solid var(--border); }
.mods td { padding: .65rem .75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.mods tr:last-child td { border-bottom: 0; }
.mods .pos { color: var(--decorative-slate); font-weight: 700; width: 3rem; }
.mod-name { font-weight: 700; display: block; }
.mod-note { display: block; color: var(--text-muted); font-size: .88rem; margin-top: .2rem; }
.optional { margin-top: 1.5rem; border-top: 1px solid var(--border); padding-top: 1rem; }
.optional summary { cursor: pointer; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); }
.optional[open] summary { margin-bottom: .75rem; }
.credits { margin-top: 2rem; text-align: center; }

/* Roadmap ------------------------------------------------------------------------------- */
.badge { display: inline-block; font: 700 .7rem var(--font-body); text-transform: uppercase; letter-spacing: .1em; padding: .3rem .55rem; border-radius: var(--radius-small); border: 1px solid var(--accent); white-space: nowrap; }
.badge-done { background: var(--accent); color: var(--accent-text); }
.badge-in-progress { background: rgba(128, 199, 221, .18); color: var(--text); }
.badge-planned { border-color: var(--decorative-slate); color: var(--text-muted); }
.badge-blocked { border: 1px dashed var(--text); color: var(--text); background: rgba(234, 243, 246, .08); }
.rm-summary { list-style: none; display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; padding: 0; margin: 0 0 2rem; }
.rm-summary li { display: flex; align-items: center; gap: .5rem; }
.rm-summary strong { font-family: var(--font-heading); font-size: 1.4rem; }
.rm-section h2 { font-size: 1.6rem; text-transform: uppercase; margin: 2rem 0 1rem; }
.rm-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .75rem; }
.rm-item { background: var(--surface-glass); border: 1px solid var(--border); border-radius: var(--radius-card); scroll-margin-top: 1rem; }
.rm-item[open] { border-color: var(--accent); }
.rm-item summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: 1rem; padding: 1rem 1.25rem; }
.rm-item summary::-webkit-details-marker { display: none; }
.rm-item summary::after { content: "+"; font: 700 1.3rem var(--font-body); color: var(--accent); margin-left: .25rem; }
.rm-item[open] summary::after { content: "−"; }
.rm-title { font-weight: 700; }
.rm-id { color: var(--accent); font-family: Consolas, "Courier New", monospace; font-size: .85rem; margin-right: .35rem; }
.rm-meta { color: var(--text-muted); font-size: .85rem; white-space: nowrap; }
.rm-body { padding: 0 1.25rem 1.25rem; border-top: 1px solid var(--border); }
.rm-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: .75rem 1.5rem; margin: 1rem 0; }
.rm-facts dt { color: var(--accent); font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; }
.rm-facts dd { margin: .2rem 0 0; }
.rm-blocked { color: var(--text); font-weight: 700; }
.rm-desc { color: var(--text-muted); }
.rm-desc p, .rm-desc ul { margin: 0 0 .75rem; }
.rm-desc strong { color: var(--text); }
.rm-sub { font-family: var(--font-body); font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; color: var(--accent); margin: 1.25rem 0 .5rem; }
.rm-commits { list-style: none; margin: 0; padding: 0; display: grid; gap: .45rem; font-size: .92rem; }
.rm-commits li { display: grid; grid-template-columns: 6.5rem 5rem 1fr; gap: .75rem; align-items: baseline; }
.rm-commits time { color: var(--text-muted); white-space: nowrap; }
.rm-foot { margin-top: 2.5rem; text-align: center; }

/* Account ------------------------------------------------------------------------------- */
.nav-account { display: inline-flex !important; align-items: center; gap: .5rem; }
.nav-account img { border-radius: 50%; }
.profile { display: flex; align-items: center; gap: 1.25rem; }
.profile img { border-radius: 50%; border: 2px solid var(--accent); }
.profile h2 { margin: 0; font-size: 1.6rem; }
.code-box { font: 700 2rem Consolas, "Courier New", monospace; letter-spacing: .15em; color: var(--accent); background: var(--background-deep); border: 1px solid var(--accent); border-radius: var(--radius-small); padding: .6rem 1rem; display: inline-block; margin: .25rem 0 .75rem; }
.installs { width: 100%; border-collapse: collapse; font-size: .95rem; }
.installs th { text-align: left; color: var(--accent); font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; padding: .4rem .5rem; border-bottom: 2px solid var(--border); }
.installs td { padding: .55rem .5rem; border-bottom: 1px solid var(--border); }
.inline-form { display: inline; }
.link-button { background: none; border: 0; color: var(--accent); font: inherit; text-decoration: underline; cursor: pointer; padding: 0; }

/* Responsive ---------------------------------------------------------------------------- */
@media (max-width: 960px) {
  .cards.three { grid-template-columns: 1fr 1fr; }
  .cards.split { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero {
    background-image:
      linear-gradient(rgba(9, 19, 29, .35), rgba(9, 19, 29, .85)),
      url("../img/portrait-background.webp");
    background-position: center;
    min-height: 82vh; align-items: flex-end;
  }
  .hero-inner { padding-block: 3rem; }
  .cards.three { grid-template-columns: 1fr; }
  .js .menu-toggle { display: inline-block; margin-left: auto; padding: .4rem .65rem; }
  .js #site-nav { display: none; flex-basis: 100%; }
  .header-row { gap: .75rem; }
  .brand { gap: .6rem; }
  .brand-tag { font-size: .6rem; letter-spacing: .16em; }
  .js #site-nav.open { display: block; }
  .js .nav { flex-direction: column; align-items: stretch; gap: 0; padding-block: .5rem; }
  .js .nav a:not(.button) { display: block; padding: .8rem 0; border-bottom: 1px solid #1d3344; }
  .js .nav .button { display: block; margin-top: .75rem; }
  .purchases li { flex-direction: column; align-items: flex-start; }
  .rm-item summary { grid-template-columns: 1fr auto; gap: .5rem .75rem; }
  .rm-item summary .badge { grid-column: 1; justify-self: start; }
  .rm-title { grid-column: 1 / -1; grid-row: 2; }
  .rm-meta { grid-column: 1; grid-row: 3; }
  .rm-item summary::after { grid-column: 2; grid-row: 1; justify-self: end; }
  .rm-commits li { grid-template-columns: 1fr; gap: .1rem; }
  .brand-mark { width: 40px; height: 40px; }
  .brand-name { font-size: 1.08rem; }
  .nav { gap: .25rem 1rem; }
  .row { flex-direction: column; gap: .25rem; }
  .row-meta { text-align: left; }
}