/* Ranked — Power Lab Board (light technical) */
:root {
  --canvas: #F2F4F5;
  --surface: #ffffff;
  --surface-2: #e8ebed;
  --ink: #11161B;
  --ink-soft: #5a6570;
  --rule: #d5d9dc;
  --rule-soft: #e4e8eb;
  --red: #E10600;
  --blue: #0066CC;
  --col-a: #E10600;
  --col-b: #0066CC;
  --win: #0a7a3e;
  --win-bg: #e8f6ee;
  --warn: #9a6b00;
  --warn-bg: #fff6e0;
  --shadow: 0 1px 2px rgba(17, 22, 27, 0.06), 0 8px 24px rgba(17, 22, 27, 0.06);
  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --max: 72rem;
  --prose: 42rem;
  --radius: 6px;
  --radius-sm: 4px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    linear-gradient(180deg, #eef1f3 0%, var(--canvas) 120px),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 23px,
      rgba(17, 22, 27, 0.015) 23px,
      rgba(17, 22, 27, 0.015) 24px
    );
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { color: var(--ink); }
h1, h2, h3, h4 {
  font-family: var(--sans);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--ink);
}
h1 { font-size: clamp(1.75rem, 3.5vw, 2.35rem); margin: 0 0 0.65rem; }
h2 { font-size: clamp(1.15rem, 2vw, 1.4rem); margin: 2.4rem 0 0.7rem; letter-spacing: -0.02em; }
h3 { font-size: 1.05rem; margin: 1.6rem 0 0.45rem; }
p { margin: 0 0 1rem; }
ul, ol { margin: 0 0 1.1rem; padding-left: 1.2rem; }
li { margin: 0 0 0.35rem; }
hr { border: 0; border-top: 1px solid var(--rule); margin: 2rem 0; }
strong { font-weight: 700; }

.skip { position: absolute; left: -9999px; }
.skip:focus {
  left: 0.75rem; top: 0.75rem; z-index: 40;
  background: var(--surface);
  color: var(--ink);
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--rule);
}

/* —— Slim lab header —— */
.site-header {
  border-bottom: 1px solid var(--rule);
  background: rgba(242, 244, 245, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 1px 0 var(--rule);
}
.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.55rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.1rem;
  min-height: 2.75rem;
}
.wordmark {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.28rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.03em;
  line-height: 1;
}
.wordmark span { color: var(--red); }
.wordmark-sub {
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-left: 0.35rem;
}
.nav { display: flex; gap: 1.1rem; align-items: center; flex: 1; }
.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.86rem;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
.nav .muted { color: #9aa3ad; font-weight: 400; font-size: 0.8rem; }
.nav-toggle {
  display: none;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  padding: 0.3rem 0.55rem;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
}
.disclosure-quiet {
  font-size: 0.72rem;
  color: var(--ink-soft);
  text-decoration: none;
  margin-left: auto;
  opacity: 0.75;
}
.disclosure-quiet:hover { opacity: 1; color: var(--ink); text-decoration: underline; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.75rem 1.25rem 3.5rem;
}
.prose { max-width: var(--prose); }
.prose.prose-wide, .lab-home { max-width: none; }
.lede {
  font-size: 1.08rem;
  line-height: 1.6;
  color: var(--ink-soft);
  margin-bottom: 1.35rem;
  max-width: 40rem;
}
.kicker {
  font-family: var(--sans);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 700;
  margin: 0 0 0.4rem;
}
.meta { font-size: 0.82rem; color: var(--ink-soft); margin-bottom: 1.35rem; }
.crumbs { font-size: 0.8rem; color: var(--ink-soft); margin-bottom: 1.1rem; }
.crumbs a { color: var(--ink-soft); text-decoration: none; }
.crumbs a:hover { color: var(--blue); text-decoration: underline; }

/* —— Lab masthead (homepage) —— */
.lab-masthead {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0 1.5rem;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 1.75rem;
}
.lab-masthead .desk-title {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -0.04em;
  margin: 0;
  line-height: 1.1;
}
.lab-masthead .desk-title em {
  font-style: normal;
  color: var(--red);
}
.lab-masthead .desk-meta {
  font-size: 0.78rem;
  color: var(--ink-soft);
  font-family: var(--mono);
  text-align: right;
  line-height: 1.45;
  margin: 0;
}

/* —— Featured VS board —— */
.featured-board {
  background: var(--surface);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  margin-bottom: 2rem;
  overflow: hidden;
}
.featured-board .board-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.55rem 1rem;
  background: var(--ink);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.featured-board .board-bar a {
  color: #fff;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  font-size: 0.8rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.35);
}
.featured-board .board-bar a:hover { border-bottom-color: #fff; }
.featured-board .board-body { padding: 1.25rem 1rem 1.5rem; }

/* —— VS stage —— */
.vs-stage {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.75rem 1rem;
  align-items: stretch;
  margin: 0 0 1.75rem;
}
.vs-col {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-width: 0;
}
.vs-col.col-a { border-top: 3px solid var(--col-a); }
.vs-col.col-b { border-top: 3px solid var(--col-b); }
.vs-col .vs-photo {
  aspect-ratio: 1;
  max-height: 200px;
  margin: 0 auto;
  width: 100%;
  max-width: 200px;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.vs-col .vs-photo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 0.5rem;
}
.vs-col .vs-name {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1.25;
  text-align: center;
}
.vs-col.col-a .vs-name { color: var(--col-a); }
.vs-col.col-b .vs-name { color: var(--col-b); }
.vs-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
.stat-block {
  background: var(--canvas);
  border: 1px solid var(--rule-soft);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.6rem;
  text-align: center;
}
.stat-block .stat-num {
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.stat-block .stat-unit {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 0.15rem;
}
.stat-block .stat-hint {
  font-size: 0.68rem;
  color: var(--ink-soft);
  margin-top: 0.2rem;
  line-height: 1.3;
}
.vs-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.5rem 0.25rem;
  align-self: center;
}
.vs-divider .vs-badge {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
}
.vs-divider .vs-note {
  font-size: 0.65rem;
  color: var(--ink-soft);
  text-align: center;
  max-width: 4.5rem;
  line-height: 1.3;
  font-family: var(--mono);
}
.vs-buy {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: auto;
}
.vs-buy .btn { width: 100%; text-align: center; justify-content: center; }

/* —— Spec matrix —— */
.spec-matrix-wrap {
  overflow-x: auto;
  margin: 0 0 1.5rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.spec-matrix {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 32rem;
}
.spec-matrix th,
.spec-matrix td {
  padding: 0.65rem 0.85rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--rule-soft);
}
.spec-matrix thead th {
  background: var(--ink);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  position: sticky;
  top: 0;
}
.spec-matrix thead th:nth-child(2) { background: var(--col-a); }
.spec-matrix thead th:nth-child(3) { background: var(--col-b); }
.spec-matrix tbody tr:nth-child(even) { background: #f7f8f9; }
.spec-matrix tbody tr:hover { background: #eef3f8; }
.spec-matrix .row-label {
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--ink);
  width: minmax(140px, 220px);
  white-space: nowrap;
}
.spec-matrix td:nth-child(2),
.spec-matrix td:nth-child(3) {
  font-variant-numeric: tabular-nums;
  line-height: 1.45;
}
.delta {
  display: inline-block;
  margin-left: 0.4rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.12rem 0.4rem;
  border-radius: 999px;
  background: var(--win-bg);
  color: var(--win);
  vertical-align: middle;
  white-space: nowrap;
}
.delta.tie {
  background: var(--surface-2);
  color: var(--ink-soft);
}

/* Generic tables (same matrix chrome) */
.table-wrap {
  overflow-x: auto;
  margin: 0 0 1.5rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.table-wrap table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 28rem;
}
.table-wrap th,
.table-wrap td {
  padding: 0.6rem 0.8rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--rule-soft);
}
.table-wrap thead th {
  background: var(--ink);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.table-wrap tbody tr:nth-child(even) { background: #f7f8f9; }
.table-wrap tbody tr:hover { background: #eef3f8; }

/* —— Verdict —— */
.verdict {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--ink);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  margin: 0 0 1.5rem;
  box-shadow: var(--shadow);
  max-width: 48rem;
}
.verdict strong {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  color: var(--red);
}

.note {
  background: var(--warn-bg);
  border: 1px solid #f0d9a0;
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin: 1rem 0 1.5rem;
  font-size: 0.92rem;
  max-width: 42rem;
}
.sources {
  background: var(--surface);
  border: 1px dashed var(--rule);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  margin: 1.75rem 0;
  max-width: 42rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.sources h3 { margin-top: 0; font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink); }

/* —— Dense comparison list —— */
.cmp-list {
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}
.cmp-list li {
  margin: 0;
  border-bottom: 1px solid var(--rule-soft);
}
.cmp-list li:last-child { border-bottom: 0; }
.cmp-list a.cmp-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.85rem;
  align-items: center;
  padding: 0.7rem 1rem;
  text-decoration: none;
  color: inherit;
  transition: background 0.12s ease;
}
.cmp-list a.cmp-row:hover { background: #eef3f8; }
.cmp-list .cmp-tag {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red);
  background: #fdecea;
  padding: 0.2rem 0.45rem;
  border-radius: 3px;
  white-space: nowrap;
}
.cmp-list .cmp-title {
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.015em;
  margin: 0;
}
.cmp-list .cmp-desc {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin: 0.15rem 0 0;
  line-height: 1.4;
}
.cmp-list .cmp-arrow {
  color: var(--ink-soft);
  font-weight: 700;
  font-size: 1.1rem;
}

/* Use-case chips */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0 0 2rem;
}
.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  transition: border-color 0.12s ease, background 0.12s ease;
}
.chip:hover {
  border-color: var(--blue);
  background: #e8f1fb;
  color: var(--blue);
}

.section-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 0.65rem;
}

.guide-list { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.guide-list li {
  margin: 0;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--rule-soft);
}
.guide-list li:last-child { border-bottom: 0; }
.guide-list a { font-weight: 700; text-decoration: none; color: var(--ink); }
.guide-list a:hover { color: var(--blue); text-decoration: underline; }
.guide-list p { margin: 0.2rem 0 0; font-size: 0.88rem; color: var(--ink-soft); }

/* Buttons */
.btn, a.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--ink);
  color: #fff !important;
  text-decoration: none !important;
  font-weight: 700;
  font-size: 0.82rem;
  padding: 0.55rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--ink);
  transition: background 0.12s ease, transform 0.12s ease;
}
.btn:hover, a.btn:hover { background: #2a323a; }
.btn.sec, a.btn.sec {
  background: var(--surface);
  color: var(--ink) !important;
  border-color: var(--rule);
}
.btn.sec:hover, a.btn.sec:hover { background: var(--canvas); border-color: var(--ink-soft); }
.btn.col-a, a.btn.col-a { background: var(--col-a); border-color: var(--col-a); }
.btn.col-a:hover, a.btn.col-a:hover { background: #b80500; }
.btn.col-b, a.btn.col-b { background: var(--col-b); border-color: var(--col-b); }
.btn.col-b:hover, a.btn.col-b:hover { background: #0052a3; }
.btns { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0 0.35rem; }

/* Photos (legacy / non-VS) */
.ph { margin: 0 0 1.25rem; }
.ph-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 0.75rem;
  margin: 0 0 1.25rem;
}
.ph-frame {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 0.75rem;
}
.ph-frame img { width: 100%; height: 100%; object-fit: contain; }
.ph-label { font-size: 0.65rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); }
.ph-hint { font-size: 0.75rem; color: var(--ink-soft); }
.ph figcaption { font-size: 0.75rem; color: var(--ink-soft); margin-top: 0.4rem; }

/* Footer */
.site-footer {
  border-top: 2px solid var(--ink);
  background: var(--surface);
  padding: 2rem 0 1.5rem;
  margin-top: auto;
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem 1.25rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1.5rem;
}
.site-footer .wordmark { font-size: 1.15rem; }
.site-footer a { color: var(--ink); text-decoration: none; font-weight: 600; }
.site-footer a:hover { color: var(--blue); text-decoration: underline; }
.site-footer .legal {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem 1.25rem 0;
  border-top: 1px solid var(--rule-soft);
  font-size: 0.75rem;
}
.site-footer .legal a {
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: underline;
}

.notfound {
  max-width: 36rem;
  margin: 0 auto;
  padding: 4rem 1.25rem;
  text-align: left;
}

.lab-home .howto {
  max-width: 40rem;
  margin-top: 0.5rem;
}
.lab-home .howto ul { margin-bottom: 0; }

@media (max-width: 820px) {
  .vs-stage {
    grid-template-columns: 1fr;
  }
  .vs-divider {
    flex-direction: row;
    padding: 0.25rem 0;
  }
  .vs-divider .vs-note { max-width: none; }
  .footer-inner { grid-template-columns: 1fr; }
  .cmp-list a.cmp-row { grid-template-columns: auto 1fr; }
  .cmp-list .cmp-arrow { display: none; }
}

@media (max-width: 640px) {
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .disclosure-quiet { display: none; }
  .nav {
    display: none;
    position: absolute;
    left: 0; right: 0; top: 100%;
    background: var(--surface);
    border-bottom: 1px solid var(--rule);
    flex-direction: column;
    align-items: flex-start;
    padding: 0.75rem 1.25rem 1rem;
    gap: 0.65rem;
  }
  .site-header.open .nav { display: flex; }
  .header-inner { position: relative; flex-wrap: wrap; }
  .lab-masthead .desk-meta { text-align: left; }
  .vs-stats { grid-template-columns: 1fr 1fr; }
}