/* Zipling landing page. System fonts, no third-party requests. */

:root {
  --bg: #FBFBFD;
  --bg-alt: #F3F4F8;
  --surface: #FFFFFF;
  --ink: #1D1D1F;
  --ink-2: #45464F;
  --ink-3: #7A7C88;
  --line: rgba(20, 22, 40, 0.09);
  --brand: #4B5BEA;
  --brand-deep: #2B2FC6;
  --brand-soft: rgba(75, 91, 234, 0.1);
  --glow: rgba(99, 133, 255, 0.32);
  /* Chart: one highlighted series against neutral competitors (validated). */
  --bar-us: #4B5BEA;
  --bar-them: #A9AFBD;
  --shadow: 0 1px 2px rgba(20, 22, 40, 0.06), 0 12px 40px rgba(20, 22, 40, 0.08);
  --shot-shadow: 0 30px 80px rgba(30, 36, 90, 0.25), 0 8px 24px rgba(30, 36, 90, 0.12);
  --radius: 22px;
  --max: 1120px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0B0D18;
    --bg-alt: #10131F;
    --surface: #151722;
    --ink: #F5F5F7;
    --ink-2: #C4C6D2;
    --ink-3: #8C8FA0;
    --line: rgba(255, 255, 255, 0.09);
    --brand: #8794FF;
    --brand-soft: rgba(135, 148, 255, 0.12);
    --glow: rgba(91, 118, 255, 0.4);
    --bar-us: #7383F6;
    --bar-them: #6B7184;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 40px rgba(0, 0, 0, 0.35);
    --shot-shadow: 0 30px 90px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.06);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter, Roboto, "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
code { font: 0.9em ui-monospace, "SF Mono", Menlo, monospace; background: var(--brand-soft); padding: 0.1em 0.35em; border-radius: 6px; }
h1, h2, h3 { font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Inter, sans-serif; letter-spacing: -0.022em; margin: 0; }
p { margin: 0; }
:focus-visible { outline: 3px solid var(--brand); outline-offset: 3px; border-radius: 6px; }

.skip { position: absolute; left: -9999px; top: 8px; padding: 8px 14px; background: var(--surface); border-radius: 10px; z-index: 100; }
.skip:focus { left: 12px; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner { max-width: var(--max); margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 650; font-size: 18px; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.brand img { border-radius: 7px; }
.nav nav { display: flex; gap: 26px; margin-left: auto; }
.nav nav a { color: var(--ink-2); font-size: 14.5px; }
.nav nav a:hover { color: var(--ink); text-decoration: none; }
.nav-gh { display: inline-flex; align-items: center; gap: 7px; font-size: 14.5px; color: var(--ink); padding: 7px 13px; border: 1px solid var(--line); border-radius: 999px; }
.nav-gh:hover { text-decoration: none; background: var(--brand-soft); }
.nav-gh svg { width: 16px; height: 16px; fill: currentColor; }

/* Hero */
.hero { position: relative; padding: 72px 24px 0; text-align: center; }
.hero-glow {
  position: absolute; inset: -120px 0 auto; height: 760px; pointer-events: none; z-index: 0;
  background:
    radial-gradient(520px 340px at 50% 18%, var(--glow), transparent 70%),
    radial-gradient(420px 300px at 22% 40%, rgba(122, 92, 255, 0.14), transparent 70%),
    radial-gradient(420px 300px at 78% 42%, rgba(62, 156, 255, 0.14), transparent 70%);
}
.hero-inner { position: relative; z-index: 1; max-width: 860px; margin: 0 auto; }
.hero-icon { width: 200px; margin: 0 auto 28px; filter: drop-shadow(0 24px 40px rgba(43, 47, 198, 0.35)); animation: float 7s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; font-size: 14px; font-weight: 600; color: var(--brand); background: var(--brand-soft); padding: 6px 14px; border-radius: 999px; margin-bottom: 22px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 0 var(--brand); animation: pulse 2.4s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(99, 120, 255, 0.55); } 70% { box-shadow: 0 0 0 9px rgba(99, 120, 255, 0); } 100% { box-shadow: 0 0 0 0 rgba(99, 120, 255, 0); } }
h1 { font-size: clamp(44px, 7.4vw, 92px); line-height: 1.02; font-weight: 700; letter-spacing: -0.035em; }
.grad { background: linear-gradient(100deg, #6E8BFF 0%, #4B5BEA 45%, #8A5CFF 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: clamp(18px, 2.1vw, 21px); color: var(--ink-2); max-width: 680px; margin: 26px auto 0; line-height: 1.55; }
.lede strong { color: var(--ink); font-weight: 650; }
.cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 24px; border-radius: 999px; font-size: 16px; font-weight: 600; transition: transform 0.15s, background 0.2s; }
.btn:hover { text-decoration: none; }
.btn-primary { background: linear-gradient(180deg, #6378FF, #3C46DC); color: #fff; box-shadow: 0 8px 22px rgba(60, 70, 220, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25); }

.btn-ghost { color: var(--ink); border: 1px solid var(--line); background: var(--surface); }
.btn-ghost:hover { transform: translateY(-1px); background: var(--brand-soft); }
.fine { font-size: 13.5px; color: var(--ink-3); margin-top: 14px; }

.hero-shot { position: relative; z-index: 1; max-width: 1080px; margin: 64px auto 0; padding: 0; }
.hero-shot img { border-radius: 14px; box-shadow: var(--shot-shadow); }
.hero-shot::after { content: ""; position: absolute; inset: auto 8% -40px; height: 80px; background: radial-gradient(closest-side, var(--glow), transparent); z-index: -1; filter: blur(20px); }

/* Stats */
.stats { max-width: var(--max); margin: 88px auto 0; padding: 0 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; box-shadow: var(--shadow); }
.stat-num { font-size: 52px; font-weight: 700; letter-spacing: -0.04em; line-height: 1; font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif; background: linear-gradient(160deg, var(--ink), var(--brand)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-num { font-variant-numeric: tabular-nums; }
.stat-num .unit { font-size: 0.55em; margin-left: 2px; }
.stat-label { margin-top: 12px; color: var(--ink-2); font-size: 15px; line-height: 1.45; }
sup { font-size: 0.7em; color: var(--ink-3); }

/* Sections */
.section { max-width: var(--max); margin: 0 auto; padding: 128px 24px 0; }
.section-head { max-width: 760px; }
.kicker { color: var(--brand); font-weight: 650; font-size: 15px; letter-spacing: 0.02em; margin-bottom: 12px; }
h2 { font-size: clamp(34px, 4.8vw, 56px); line-height: 1.06; font-weight: 700; letter-spacing: -0.032em; }
.sub { font-size: 19px; color: var(--ink-2); margin-top: 18px; line-height: 1.55; }

/* Charts */
.legend { display: flex; gap: 22px; margin-top: 40px; font-size: 14px; color: var(--ink-2); }
.legend span { display: inline-flex; align-items: center; gap: 8px; }
.sw { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.sw-us { background: var(--bar-us); }
.sw-them { background: var(--bar-them); }
.charts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 18px; }
.chart { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 22px 18px; box-shadow: var(--shadow); }
.chart figcaption { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 18px; }
.chart figcaption strong { font-size: 17px; font-weight: 650; }
.chart figcaption span { font-size: 13px; color: var(--ink-3); }
.bars { display: grid; gap: 13px; }
.bar-row { display: grid; grid-template-columns: 104px 1fr; align-items: center; gap: 10px; cursor: default; border-radius: 8px; outline-offset: 4px; }
.bar-name { font-size: 13.5px; color: var(--ink-2); line-height: 1.2; }
.bar-row.us .bar-name { color: var(--ink); font-weight: 600; }
.bar-track { position: relative; height: 22px; display: flex; align-items: center; gap: 8px; }
.bar { height: 14px; border-radius: 0 4px 4px 0; background: var(--bar-them); width: calc((100% - 74px) * var(--w)); min-width: 3px; transform: scaleX(0); transform-origin: left; transition: transform 0.9s cubic-bezier(0.2, 0.8, 0.2, 1) calc(var(--i, 0) * 70ms), filter 0.2s; }
.chart.grown .bar { transform: scaleX(1); }
.bar-val { opacity: 0; transition: opacity 0.4s ease calc(var(--i, 0) * 70ms + 450ms); }
.chart.grown .bar-val { opacity: 1; }
.bar-row.us .bar { background: var(--bar-us); }
.bar-val { font-size: 13px; color: var(--ink-2); font-variant-numeric: tabular-nums; white-space: nowrap; }
.bar-row.us .bar-val { color: var(--ink); font-weight: 600; }
.bar-row:hover .bar, .bar-row:focus-visible .bar { filter: brightness(1.08) saturate(1.1); }
.tooltip { position: fixed; z-index: 60; pointer-events: none; background: var(--surface); color: var(--ink); border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: 12px; padding: 10px 12px; font-size: 13px; line-height: 1.45; min-width: 180px; }
.tooltip b { display: block; font-size: 13.5px; margin-bottom: 2px; }
.tooltip span { color: var(--ink-3); }

.table-view { margin-top: 18px; font-size: 14.5px; }
.table-view summary { cursor: pointer; color: var(--brand); font-weight: 600; width: fit-content; }
.table-view table { width: 100%; border-collapse: collapse; margin-top: 14px; background: var(--surface); border-radius: 14px; overflow: hidden; border: 1px solid var(--line); }
.table-view th, .table-view td { text-align: right; padding: 10px 14px; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.table-view th:first-child, .table-view td:first-child { text-align: left; }
.table-view th { font-size: 13px; color: var(--ink-3); font-weight: 600; }
.table-view tr.us td { font-weight: 600; }

.kinds { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 42px; }
.kind { border-top: 2px solid var(--brand); padding-top: 18px; }
.kind-num { font-size: 34px; font-weight: 700; letter-spacing: -0.03em; color: var(--brand); font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif; }
.kind h3 { font-size: 17px; margin-top: 6px; }
.kind p:last-child { color: var(--ink-2); font-size: 15px; margin-top: 6px; }
.footnote { margin-top: 36px; font-size: 13.5px; color: var(--ink-3); max-width: 820px; }

/* Engine */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 48px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 26px; box-shadow: var(--shadow); transition: transform 0.25s, box-shadow 0.25s; }
.card:hover { transform: translateY(-3px); }
.card-icon { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; background: linear-gradient(160deg, #6E86FF, #3B44D6); box-shadow: 0 6px 16px rgba(59, 68, 214, 0.35); margin-bottom: 18px; }
.card-icon svg { width: 24px; height: 24px; fill: none; stroke: #fff; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 19px; font-weight: 650; }
.card p { color: var(--ink-2); font-size: 15.5px; margin-top: 8px; }

/* App */
.app-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 56px; align-items: center; }
.ticks { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 12px; }
.ticks li { position: relative; padding-left: 32px; color: var(--ink-2); }
.ticks li::before { content: ""; position: absolute; left: 0; top: 3px; width: 20px; height: 20px; border-radius: 50%; background: var(--brand-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M6 10.5l2.6 2.6L14 7.5' fill='none' stroke='%234B5BEA' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/20px no-repeat; }
.app-shot { margin: 0; }
.app-shot img { border-radius: 12px; box-shadow: var(--shot-shadow); }
.roadmap { margin-top: 88px; background: linear-gradient(160deg, var(--surface), var(--bg-alt)); border: 1px solid var(--line); border-radius: 28px; padding: 40px 40px 32px; }
.roadmap h3 { font-size: 26px; }
.roadmap ul { list-style: none; padding: 0; margin: 26px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px 28px; }
.roadmap li { color: var(--ink-2); font-size: 15px; }
.roadmap li strong { display: block; color: var(--ink); font-size: 16.5px; margin-bottom: 3px; }

/* FAQ */
.qa { margin-top: 36px; max-width: 820px; }
.qa details { border-bottom: 1px solid var(--line); padding: 20px 0; }
.qa summary { cursor: pointer; font-size: 19px; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: "+"; color: var(--brand); font-weight: 400; font-size: 26px; line-height: 1; transition: transform 0.2s; }
.qa details[open] summary::after { transform: rotate(45deg); }
.qa details p { color: var(--ink-2); margin-top: 12px; }


/* Reveal on scroll */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.8s ease var(--d, 0ms), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) var(--d, 0ms); }
.js .reveal.in { opacity: 1; transform: none; }



/* Responsive */
@media (max-width: 980px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .charts { grid-template-columns: 1fr; }
  .kinds { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .app-grid { grid-template-columns: 1fr; gap: 36px; }
  .roadmap ul { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .nav nav { display: none; }
  .nav-gh { margin-left: auto; }
  .hero { padding-top: 48px; }
  .hero-icon { width: 150px; }
  .stats { grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 56px; }
  .stat { padding: 20px 18px; }
  .stat-num { font-size: 40px; }
  .section { padding-top: 96px; }
  .kinds, .cards, .roadmap ul { grid-template-columns: 1fr; }
  .roadmap { padding: 28px 22px; }
  .bar-row { grid-template-columns: 86px 1fr; }
}

/* ---------------------------------------------------------------- shared chrome */

.progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 70; background: linear-gradient(90deg, #6E8BFF, #4B5BEA, #8A5CFF); transform: scaleX(0); transform-origin: left; pointer-events: none; }
.nav nav a { position: relative; transition: color 0.2s; }
.nav nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -5px; height: 2px; border-radius: 2px; background: var(--brand); transform: scaleX(0); transition: transform 0.25s ease; }
.nav nav a:hover::after, .nav nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }

.btn-primary { position: relative; overflow: hidden; }
.btn-primary::after { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.35) 50%, transparent 70%); transform: translateX(-120%); transition: transform 0.7s ease; }
.btn-primary:hover::after { transform: translateX(120%); }
.btn-primary:hover { transform: translateY(-1px); }
.arrow { display: inline-block; transition: transform 0.2s ease; }
a:hover .arrow { transform: translateX(3px); }

.hero-glow { animation: breathe 9s ease-in-out infinite; }
@keyframes breathe { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.8; transform: scale(1.04); } }
.grad { background-size: 200% 100%; animation: shimmer 10s ease-in-out infinite; }
@keyframes shimmer { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }

.stat { transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease; }
.stat:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--brand) 35%, var(--line)); }
.card-icon { transition: transform 0.35s cubic-bezier(0.3, 1.5, 0.5, 1); }
.card:hover .card-icon { transform: rotate(-6deg) scale(1.07); }
.kind { transition: transform 0.25s ease; }
.kind:hover { transform: translateY(-2px); }
.qa details[open] > p { animation: drop 0.35s ease; }
@keyframes drop { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

.chart-links { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 18px; }
.chart-links .table-view { margin-top: 0; }
.more { font-weight: 600; font-size: 15px; }
.more:hover { text-decoration: none; }

/* ---------------------------------------------------------------- comparison */

.cmp-legend { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 36px; font-size: 14px; color: var(--ink-2); }
.cmp-legend > span { display: inline-flex; align-items: center; gap: 8px; }
.cmp-wrap { margin-top: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow-x: auto; -webkit-overflow-scrolling: touch; }
.cmp { width: 100%; border-collapse: separate; border-spacing: 0; min-width: 760px; font-size: 15px; }
.cmp th, .cmp td { padding: 14px 12px; text-align: center; border-bottom: 1px solid var(--line); vertical-align: middle; }
.cmp thead th { font-size: 13.5px; font-weight: 600; color: var(--ink-2); padding-top: 20px; padding-bottom: 16px; white-space: nowrap; }
.cmp thead th.us { color: var(--ink); font-size: 15px; }
.cmp thead th.us img { display: block; margin: 0 auto 6px; border-radius: 7px; }
.cmp tbody th[scope="row"] { text-align: left; font-weight: 550; color: var(--ink); min-width: 230px; position: sticky; left: 0; background: var(--surface); z-index: 1; }
.cmp tbody th small { display: block; font-weight: 400; color: var(--ink-3); font-size: 13px; margin-top: 2px; line-height: 1.4; }
.cmp .us { background: color-mix(in srgb, var(--brand) 7%, var(--surface)); }
.cmp thead th.us { border-radius: 14px 14px 0 0; }
.cmp tr:last-child td, .cmp tr:last-child th { border-bottom: 0; }
.cmp-group th { text-align: left !important; font-size: 12.5px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--brand); background: var(--bg-alt); padding: 10px 12px !important; position: sticky; left: 0; }
.cmp-group th span { float: right; text-transform: none; letter-spacing: 0; font-weight: 500; color: var(--ink-3); }
.cmp tbody tr:not(.cmp-group) { transition: background 0.2s; }
.cmp tbody tr:not(.cmp-group):hover td, .cmp tbody tr:not(.cmp-group):hover th { background: color-mix(in srgb, var(--brand) 5%, var(--surface)); }

.mk { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; vertical-align: middle; }
.mk svg { width: 18px; height: 18px; fill: none; stroke: #fff; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.mk-yes { background: var(--ink-2); }
.us .mk-yes, .cmp-legend .mk-yes { background: linear-gradient(160deg, #6E86FF, #3B44D6); box-shadow: 0 3px 10px rgba(59, 68, 214, 0.35); }
.mk-part { background: linear-gradient(90deg, var(--ink-3) 50%, transparent 50%); border: 2px solid var(--ink-3); }
.mk-part svg { stroke: var(--surface); }
.mk-no { width: 12px; height: 12px; border: 2px solid var(--line); background: transparent; box-shadow: inset 0 0 0 1px var(--line); }
.mk-plan { border: 2px dashed var(--brand); background: transparent; }
.mk-plan svg { stroke: var(--brand); stroke-width: 2; }
.pair { display: inline-flex; gap: 6px; }
.pair .mk { width: 22px; height: 22px; }
.pair .mk svg { width: 15px; height: 15px; }
.pair .mk-no { width: 22px; height: 22px; border-width: 2px; box-shadow: none; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.js .cmp tbody .mk { opacity: 0; transform: scale(0.4); transition: transform 0.45s cubic-bezier(0.3, 1.6, 0.5, 1) calc(var(--r, 0) * 45ms), opacity 0.3s ease calc(var(--r, 0) * 45ms); }
.js .cmp tbody.popped .mk { opacity: 1; transform: none; }

/* ---------------------------------------------------------------- benchmarks page */

.page-hero { position: relative; padding: 84px 24px 0; overflow: hidden; }
.page-hero .hero-glow { inset: -200px 0 auto; height: 620px; }
.page-hero-inner { position: relative; max-width: var(--max); margin: 0 auto; }
.page-title { font-size: clamp(42px, 6.2vw, 76px); line-height: 1.03; font-weight: 700; letter-spacing: -0.035em; }
.page-hero .sub { max-width: 720px; }
.section.tight { padding-top: 48px; }
.tabs { display: inline-flex; flex-wrap: wrap; gap: 4px; padding: 5px; background: var(--bg-alt); border: 1px solid var(--line); border-radius: 999px; }
.tabs button { font: inherit; font-size: 14.5px; font-weight: 550; color: var(--ink-2); background: transparent; border: 0; border-radius: 999px; padding: 8px 16px; cursor: pointer; transition: background 0.25s, color 0.25s, box-shadow 0.25s; }
.tabs button:hover { color: var(--ink); }
.tabs button[aria-selected="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgba(20, 22, 40, 0.1), 0 4px 12px rgba(20, 22, 40, 0.08); }
.ds-info { margin-top: 18px; color: var(--ink-2); font-size: 15.5px; }
.ds-info strong { color: var(--ink); }
.ds-info span { color: var(--ink-3); }
.legend-note { color: var(--ink-3); font-size: 13px; }
#bench-charts .bar-row { grid-template-columns: 118px 1fr; }
.bar-name sup { margin-left: 1px; }

.vs-wrap { margin-top: 36px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow-x: auto; }
.vs { width: 100%; border-collapse: collapse; min-width: 640px; font-size: 15px; }
.vs th, .vs td { padding: 14px 18px; border-bottom: 1px solid var(--line); text-align: left; }
.vs thead th { font-size: 13px; color: var(--ink-3); font-weight: 600; }
.vs tbody tr:last-child th, .vs tbody tr:last-child td { border-bottom: 0; }
.vs tbody th { font-weight: 600; }
.delta { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 14px; font-weight: 600; font-variant-numeric: tabular-nums; }
.delta.better { color: var(--brand); background: var(--brand-soft); }
.delta.worse { color: #B4520A; background: rgba(240, 140, 40, 0.13); }
.delta.even { color: var(--ink-2); background: var(--bg-alt); }
@media (prefers-color-scheme: dark) { .delta.worse { color: #FFB066; background: rgba(255, 160, 70, 0.14); } }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.h2-sm { font-size: clamp(28px, 3.4vw, 38px); }
.behind { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 16px; }
.behind li { position: relative; padding-left: 22px; color: var(--ink-2); }
.behind li::before { content: ""; position: absolute; left: 2px; top: 10px; width: 8px; height: 8px; border-radius: 50%; background: #F08C28; }
.behind strong { color: var(--ink); font-weight: 600; }

/* ---------------------------------------------------------------- documents */

.doc { max-width: 760px; margin: 0 auto; padding: 84px 24px 0; }
.doc h2 { font-size: 24px; letter-spacing: -0.02em; margin-top: 44px; }
.doc p, .doc ul { color: var(--ink-2); margin-top: 12px; }
.doc ul { padding-left: 20px; display: grid; gap: 8px; }
.doc .sub { margin-top: 18px; }
.doc .fine { margin-top: 10px; }
.credits strong { color: var(--ink); font-weight: 600; }

/* ---------------------------------------------------------------- footer */

.footer { margin-top: 140px; border-top: 1px solid var(--line); background: var(--bg-alt); }
.footer-inner { max-width: var(--max); margin: 0 auto; padding: 48px 24px 56px; display: grid; grid-template-columns: 1.2fr 2fr; gap: 40px; }
.footer-brand p { margin-top: 12px; color: var(--ink-3); font-size: 14px; line-height: 1.6; }
.footer .brand { font-size: 17px; }
.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-cols h3 { font-size: 13px; font-weight: 650; color: var(--ink); letter-spacing: 0; margin-bottom: 12px; }
.footer-cols a { display: block; color: var(--ink-3); font-size: 14.5px; padding: 4px 0; transition: color 0.2s, transform 0.2s; }
.footer-cols a:hover { color: var(--brand); text-decoration: none; transform: translateX(2px); }

@media (max-width: 980px) {
  .two-col { grid-template-columns: 1fr; gap: 48px; }
}
@media (max-width: 640px) {
  .footer-inner { grid-template-columns: 1fr; }
  .cmp tbody th[scope="row"] { min-width: 170px; }
  .tabs { border-radius: 18px; }
  #bench-charts .bar-row { grid-template-columns: 96px 1fr; }
  .page-hero { padding-top: 56px; }
  .doc { padding-top: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; transition-delay: 0ms !important; }
}

.cmp-hint { display: none; margin-top: 14px; font-size: 13.5px; color: var(--ink-3); }
@media (max-width: 640px) { .cmp-hint { display: block; } }