/* buyaigear
   Tokens first, then base, then components. Both themes live at the token level;
   no component rule carries a literal color. Numbers are always mono and tabular. */

:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #eceef2;
  --ink: #16191e;
  --ink-2: #4a505c;
  --ink-3: #7a8191;
  --line: #dde0e6;
  --line-2: #c6cad3;
  --accent: #b5602a;
  --accent-ink: #944a1c;
  --accent-soft: #f6e9de;
  --on-accent: #ffffff;
  --bar: #2b313c;
  --good: #2e7a4c;
  --warn: #a8720f;
  --bad: #b23a2d;
  --focus: #2f6fd6;
  --shadow: 0 1px 2px rgba(22, 25, 30, .05), 0 10px 30px rgba(22, 25, 30, .06);
  --display: "Bricolage Grotesque", "IBM Plex Sans", system-ui, sans-serif;
  --body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --wrap: 1120px;
  --gutter: 20px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1114;
    --surface: #161920;
    --surface-2: #1d2129;
    --ink: #e7e9ed;
    --ink-2: #aab0bb;
    --ink-3: #7b828f;
    --line: #272b34;
    --line-2: #363b46;
    --accent: #d9864a;
    --accent-ink: #e4985f;
    --accent-soft: #2a1f16;
    --on-accent: #16191e;
    --bar: #c3c8d2;
    --good: #5fbf85;
    --warn: #d9a441;
    --bad: #e06a5c;
    --focus: #7aa7f0;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 10px 30px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration-color: var(--line-2); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--accent); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 3px; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { font-family: var(--display); font-weight: 650; letter-spacing: -0.01em; line-height: 1.1; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(2rem, 1.4rem + 2.6vw, 3.4rem); font-variation-settings: "opsz" 96; }
h2 { font-size: clamp(1.35rem, 1.1rem + 1vw, 1.9rem); font-variation-settings: "opsz" 48; }
h3 { font-size: 1.05rem; }
p { margin: 0; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--ink-3); }
.wrap { width: min(var(--wrap), 100% - 2 * var(--gutter)); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 8px 12px; border-radius: 6px; z-index: 10; }
.skip:focus { left: 8px; }

/* header */
.site-head { border-bottom: 1px solid var(--line); background: var(--bg); }
.site-head .row { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 60px; }
.brand { font-family: var(--display); font-weight: 700; font-size: 1.25rem; letter-spacing: -0.02em; text-decoration: none; display: inline-flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 18px; height: 18px; border-radius: 4px; flex: none;
  background: linear-gradient(to bottom, var(--accent) 0 28%, transparent 28% 40%, var(--accent) 40% 68%, transparent 68% 80%, var(--accent) 80% 100%);
}
/* The wordmark stays lowercase like the domain; copper on "ai" does the word-splitting,
   and a dotted lowercase i can never be misread as an l. */
.brand-ai { color: var(--accent); }
.head-right { display: flex; align-items: center; justify-content: flex-end; gap: 10px 22px; flex-wrap: wrap; }
.nav { display: flex; gap: 22px; font-size: .95rem; }
.checked { font-family: var(--mono); font-size: .78rem; color: var(--ink-3); display: inline-flex; align-items: center; gap: 7px; white-space: nowrap; }
.checked .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--good); }
.nav a { text-decoration: none; color: var(--ink-2); }
.nav a:hover { color: var(--ink); }

/* hero */
.hero { padding-block: 52px 32px; max-width: 780px; }
.hero h1 { margin-bottom: 18px; }
.lead { font-size: 1.1rem; color: var(--ink-2); max-width: 64ch; }
.lead a { color: var(--ink); }

/* memory ladder */
.ladder { margin-block: 12px 44px; }
.ladder-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px 32px; flex-wrap: wrap; margin-bottom: 16px; }
.ladder-head > div { display: flex; flex-direction: column; gap: 8px; max-width: 62ch; }
.ladder-head p { font-size: .95rem; }
.pick { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.pick label { display: flex; flex-direction: column; gap: 4px; font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); }
.pick select { font: inherit; font-family: var(--body); font-size: .92rem; letter-spacing: 0; text-transform: none; color: var(--ink); background: var(--surface); border: 1px solid var(--line-2); border-radius: 6px; padding: 7px 10px; min-width: 12em; }
.pick button { font: inherit; font-size: .9rem; padding: 7px 14px; border-radius: 6px; border: 1px solid var(--line-2); background: var(--surface-2); color: var(--ink); cursor: pointer; }
.rows { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.ladder-group { font-size: 1.1rem; margin: 26px 0 8px; display: flex; align-items: baseline; gap: 10px; }
.ladder-group a { text-decoration: none; }
.ladder-group a:hover { color: var(--accent-ink); }
.ladder-group .muted { font-family: var(--mono); font-size: .78rem; font-weight: 400; }
.rows.no-spark .r, .rows.no-spark .rows-h { grid-template-columns: minmax(0, 1.4fr) minmax(0, 2fr) 7.5rem 10rem 9.5rem; }
.r, .rows-h {
  display: grid;
  /* Fixed tracks in rem only: every row is its own grid, and the header row has a smaller
     font, so em or content-sized tracks would resolve differently per row and misalign. */
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 2fr) 7.5rem 10rem 9.5rem 7.5rem;
  gap: 18px; align-items: center;
  padding: 13px 8px; border-bottom: 1px solid var(--line);
}
.rows-h { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); padding-block: 9px; }
.rows-h span:last-child, .r-spark { justify-self: end; }
.rows-h a { color: inherit; text-decoration: none; }
.rows-h a:hover { color: var(--ink); }
.rows-h a.on { color: var(--ink); font-weight: 600; text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 5px; }
.rows-h .alt { margin-left: 4px; }
.r:hover { background: var(--surface); }
.r-name { font-family: var(--display); font-weight: 600; font-size: 1.05rem; text-decoration: none; line-height: 1.2; font-variation-settings: "opsz" 24; min-width: 0; overflow-wrap: anywhere; }
.r-name:hover { color: var(--accent-ink); }
.r-mem { display: flex; align-items: center; gap: 10px; min-width: 0; }
.r-mem .track { flex: 1 1 auto; min-width: 0; display: block; }
.r-mem .bar { display: block; height: 14px; min-width: 2px; background: var(--bar); border-radius: 2px; }
.r-mem.unified .bar { background: repeating-linear-gradient(135deg, var(--bar) 0 3px, transparent 3px 7px); box-shadow: inset 0 0 0 1px var(--bar); }
.r-mem .num { font-size: .92rem; white-space: nowrap; flex: none; min-width: 4.6em; text-align: right; }
.r-bw, .r-tps { font-size: .9rem; color: var(--ink-2); white-space: nowrap; }
.r-price { display: flex; flex-direction: column; line-height: 1.25; }
.r-price .price { font-size: 1.05rem; font-weight: 500; }
.r-price .src { font-size: .78rem; color: var(--ink-3); }
.r-spark { color: var(--accent); display: flex; }
.spark { display: block; }

/* how to read */
.how { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; padding-block: 8px 48px; }
.how h3 { margin-bottom: 6px; }
.how p { color: var(--ink-2); font-size: .95rem; }

/* product request form */
.request { padding-block: 28px 44px; border-top: 1px solid var(--line); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 24px 56px; align-items: start; }
.request h2 { margin-bottom: 10px; }
.request .muted { font-size: .95rem; max-width: 48ch; }
.request .ok { margin-top: 14px; color: var(--good); font-weight: 500; }
.request-form { display: grid; gap: 14px; }
.request-form label { display: grid; gap: 6px; font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); }
.request-form input, .request-form textarea { font: inherit; font-size: .95rem; letter-spacing: 0; text-transform: none; color: var(--ink); background: var(--surface); border: 1px solid var(--line-2); border-radius: 6px; padding: 9px 11px; width: 100%; }
.request-form textarea { resize: vertical; }
.request-form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.request-form .btn { justify-self: start; border: 0; cursor: pointer; font: inherit; font-weight: 600; }

/* product page */
.crumbs { font-size: .85rem; color: var(--ink-3); padding-top: 20px; display: flex; gap: 8px; flex-wrap: wrap; }
.crumbs a { text-decoration: none; }
.p-head { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr); gap: 32px; align-items: start; padding-block: 22px 36px; }
.eyebrow { font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); margin-bottom: 10px; }
.p-title .lead { margin-top: 16px; font-size: 1.05rem; }
.p-price { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 22px 24px; box-shadow: var(--shadow); }
.p-price .label { font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); }
.p-price .big { font-size: 2.6rem; font-weight: 500; line-height: 1.1; margin-block: 6px 8px; }
.p-price .src { font-size: .85rem; color: var(--ink-2); margin-bottom: 16px; }
.p-price .muted { margin-top: 6px; font-size: .92rem; }
.btn { display: inline-block; background: var(--accent); color: var(--on-accent); font-weight: 600; text-decoration: none; padding: 11px 18px; border-radius: 7px; font-size: .95rem; }
.btn:hover { background: var(--accent-ink); }
.btn-2 { background: transparent; color: var(--ink); border: 1px solid var(--line-2); }
.btn-2:hover { background: var(--surface-2); color: var(--ink); }
.buy-links { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.p-section { padding-block: 28px; border-top: 1px solid var(--line); }
.p-section h2 { margin-bottom: 8px; }
.p-section > .muted { font-size: .92rem; margin-bottom: 16px; max-width: 72ch; }
.p-section .more { margin-top: 14px; font-size: .92rem; }
.src-note { margin-top: 14px; font-size: .85rem; }

/* chart */
.chart-wrap { overflow-x: auto; }
.chart { width: 100%; max-width: 760px; height: auto; display: block; }
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .tick { fill: var(--ink-3); font-family: var(--mono); font-size: 11px; }
.chart .line { stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; }
.chart .line.recon { stroke-dasharray: 4 4; opacity: .75; }
.chart .low { fill: var(--good); }
.chart .low-label { fill: var(--good); font-family: var(--mono); font-size: 11px; }
.chart .now { fill: var(--ink); }

/* tables */
.t-wrap { overflow-x: auto; }
.t { width: 100%; border-collapse: collapse; font-size: .93rem; }
.t th { text-align: left; font-weight: 500; font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); padding: 8px 12px 8px 0; border-bottom: 1px solid var(--line); white-space: nowrap; }
.t td { padding: 10px 12px 10px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.fit .dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 7px; background: var(--ink-3); vertical-align: 1px; }
.fit-good .dot { background: var(--good); }
.fit-warn .dot { background: var(--warn); }
.fit-bad .dot { background: var(--bad); }
.fit-bad td { color: var(--ink-3); }
.fit-family th { padding-top: 18px; font-family: var(--display); font-weight: 600; font-size: .95rem; text-transform: none; letter-spacing: 0; color: var(--ink); }
.fit-sel td { background: var(--accent-soft); }
.fit-sel td:first-child { font-weight: 600; }

/* ebay listings */
.listings { list-style: none; margin: 0; padding: 0; }
.listing { display: grid; grid-template-columns: 70px minmax(0, 1fr) auto; gap: 16px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
.listing.noimg { grid-template-columns: minmax(0, 1fr) auto; }
.listing img { width: 70px; height: 70px; object-fit: contain; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; }
.l-body { min-width: 0; }
.l-body a { font-weight: 500; }
.l-body .meta { font-size: .82rem; color: var(--ink-3); margin-top: 3px; }
.l-price { text-align: right; display: flex; flex-direction: column; white-space: nowrap; }
.l-price .num { font-size: 1.05rem; font-weight: 500; }
.l-price .muted { font-size: .78rem; }

/* specs */
.specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 0 32px; margin: 0; }
.specs div { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.specs dt { color: var(--ink-2); font-size: .92rem; }
.specs dd { margin: 0; font-size: .92rem; text-align: right; }

/* prose pages */
.prose { max-width: 70ch; padding-bottom: 20px; }
.prose h2 { margin-block: 32px 10px; font-size: 1.35rem; }
.prose p { margin-bottom: 14px; color: var(--ink-2); }
.prose p a { color: var(--ink); }
.prose pre { background: var(--surface-2); padding: 12px 14px; border-radius: 6px; overflow-x: auto; font-family: var(--mono); font-size: .86rem; margin-bottom: 14px; }
.prose strong { color: var(--ink); }
.prose h3 { margin-block: 18px 6px; font-size: 1.05rem; }
.prose ul { margin: 0 0 14px; padding-left: 22px; color: var(--ink-2); }
.prose li { margin-bottom: 6px; }
.prose .t { margin-bottom: 14px; }
.prose code { font-family: var(--mono); font-size: .9em; background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }

/* footer */
.site-foot { border-top: 1px solid var(--line); margin-top: 48px; padding-block: 28px 40px; font-size: .88rem; color: var(--ink-2); }
.site-foot p { max-width: 80ch; margin-bottom: 10px; }
.foot-links { display: flex; gap: 20px; flex-wrap: wrap; }

@media (max-width: 1080px) {
  .r, .rows-h, .rows.no-spark .r, .rows.no-spark .rows-h { grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.6fr) 6.5rem 9rem 8.5rem; gap: 14px; }
  .r-spark, .rows-h span:last-child { display: none; }
}
@media (max-width: 900px) {
  .rows-h { display: none; }
  .r, .rows.no-spark .r { grid-template-columns: minmax(0, 1fr) auto; gap: 6px 16px; padding-block: 14px; }
  .r-name { grid-column: 1; }
  .r-price { grid-column: 2; grid-row: 1; align-items: flex-end; text-align: right; }
  .r-mem { grid-column: 1 / -1; }
  .r-bw, .r-tps { font-size: .82rem; }
  .r-bw::before { content: "bandwidth "; color: var(--ink-3); font-family: var(--body); }
  .r-tps::before { content: attr(data-label) " "; color: var(--ink-3); font-family: var(--body); }
  .r-tps { justify-self: end; }
  .r-spark { display: flex; grid-column: 1 / -1; justify-self: start; }
  .how { grid-template-columns: 1fr; gap: 18px; }
  .request { grid-template-columns: 1fr; }
  .p-head { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .site-head .row { flex-wrap: wrap; min-height: 0; padding-block: 10px; }
  .head-right { justify-content: flex-start; }
  .nav { gap: 14px; font-size: .9rem; }
  .hero { padding-block: 32px 20px; }
  .listing { grid-template-columns: 56px minmax(0, 1fr); }
  .listing.noimg { grid-template-columns: minmax(0, 1fr); }
  .listing img { width: 56px; height: 56px; }
  .l-price { grid-column: 2; text-align: left; flex-direction: row; gap: 10px; align-items: baseline; }
  .listing.noimg .l-price { grid-column: 1; }
  .p-price .big { font-size: 2.1rem; }
}