/* datakumi.com — the app's design language ("calm and precise"): neutral surfaces, the logo's purple for the one
   thing to do next, Geist and Geist Mono, soft corners, space rather than lines. Dark by default, like the app. */

@font-face { font-family: "Geist"; src: url("fonts/geist.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url("fonts/geist-mono.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }

:root {
  --bg: #0f0f12; --bg-2: #0b0b0e; --surface: #17171c; --raised: #1f1f26; --input: #1b1b21;
  --text: #ededf0; --text-2: #b4b4bd; --muted: #8e8e98; --line: #24242b; --line-soft: #1a1a1f;
  --accent: #8b7dff; --accent-ink: #0f0f12; --accent-hover: #a99fff; --accent-soft: rgba(139, 125, 255, .14);
  --accent-text: #b3a9ff; --accent-line: rgba(139, 125, 255, .3);
  --blue: #93c5fd; --blue-bg: rgba(96, 165, 250, .12); --blue-solid: #3b82f6;
  --green: #6ee7a0; --green-bg: rgba(74, 222, 128, .12); --green-solid: #22c55e;
  --yellow: #fcd34d; --yellow-bg: rgba(251, 191, 36, .12); --yellow-solid: #f59e0b;
  --red: #fca5a5; --red-bg: rgba(248, 113, 113, .12); --red-solid: #ef4444;
  --shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, .75), 0 0 0 1px rgba(255, 255, 255, .06);
  --logo-c: #e4e4e7; --logo-t: #fafafa; --logo-b: #a1a1aa;
  --side: #0b0b0e; --el-50: #17171c; --el-100: #1f1f26; --el-150: #2a2a33; --el-400: #73737f;
  --input-line: transparent; --card-shadow: none; --seg-shadow: 0 1px 2px rgba(0, 0, 0, .5);
  --radius: 6px; --radius-lg: 10px;
  --font: "Geist", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fafaf9; --bg-2: #f4f4f2; --surface: #ffffff; --raised: #ffffff; --input: #ffffff;
    --text: #18181b; --text-2: #52525b; --muted: #63636b; --line: #e7e5e4; --line-soft: #f0efed;
    --accent: #6d5dfc; --accent-ink: #ffffff; --accent-hover: #5a49f0; --accent-soft: #eeebff;
    --accent-text: #5444e0; --accent-line: #d9d3ff;
    --blue: #1d4ed8; --blue-bg: #dbeafe; --blue-solid: #2563eb;
    --green: #15803d; --green-bg: #dcfce7; --green-solid: #16a34a;
    --yellow: #92400e; --yellow-bg: #fef3c7; --yellow-solid: #d97706;
    --red: #b91c1c; --red-bg: #fee2e2; --red-solid: #dc2626;
    --shadow-lg: 0 12px 32px -8px rgba(24, 24, 27, .22), 0 0 0 1px rgba(24, 24, 27, .06);
    --logo-c: #18181b; --logo-t: #52525b; --logo-b: #18181b;
    --side: #f4f4f2; --el-50: #f5f5f4; --el-100: #eeedeb; --el-150: #e4e3e0; --el-400: #8f8e8a;
    --input-line: #e4e3e0; --card-shadow: 0 1px 2px rgba(24, 24, 27, .06), 0 0 0 1px #ececea;
    --seg-shadow: 0 1px 2px rgba(24, 24, 27, .08);
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font); font-size: 16px; line-height: 1.6; color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased; font-feature-settings: "tnum" 1;
}
a { color: inherit; }
code, .mono { font-family: var(--mono); font-size: .875em; }
p code, li code { white-space: nowrap; background: var(--accent-soft); color: var(--accent-text); padding: 1px 5px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.02em; margin: 0; font-weight: 600; }
h1 { font-size: clamp(31px, 5.4vw, 60px); letter-spacing: -.035em; }
h2 { font-size: clamp(28px, 3.4vw, 40px); letter-spacing: -.03em; }
h3 { font-size: 17px; letter-spacing: -.01em; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
section { padding: 112px 0; }
.eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-text);
  margin-bottom: 16px; display: block;
}
.lead { font-size: 19px; color: var(--text-2); max-width: 640px; }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head .lead { margin-top: 16px; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px; height: 44px; padding: 0 18px; border-radius: var(--radius);
  font: 500 15px/1 var(--font); text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-ghost { color: var(--text); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--muted); }
.btn-sm { height: 36px; padding: 0 14px; font-size: 14px; }

/* header */
header.top {
  position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(140%) blur(12px); -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line-soft);
}
header.top .wrap { display: flex; align-items: center; gap: 32px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; font-size: 21px; letter-spacing: -.03em; }
.brand svg { width: 34px; height: 34px; }
.logo-c { stroke: var(--logo-c); } .logo-t { fill: var(--logo-t); } .logo-b { fill: var(--logo-b); } .logo-o { fill: var(--accent); }
nav.links { display: flex; gap: 28px; margin-left: auto; }
nav.links a { text-decoration: none; color: var(--text-2); font-size: 14px; }
nav.links a:hover { color: var(--text); }

/* hero */
.hero { padding: 96px 0 104px; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr); gap: 56px; }
.hero h1 { max-width: 860px; }
.hero h1 em { font-style: normal; color: var(--accent-text); }
.hero .lead { margin-top: 24px; max-width: 680px; font-size: 20px; }
.hero .actions { display: flex; gap: 12px; margin-top: 36px; flex-wrap: wrap; }
/* the dataset page, as the app draws it (web/src/pages/dataset): sidebar, page, details rail */
.shot {
  display: grid; grid-template-columns: 188px minmax(0, 1fr) 200px; background: var(--bg); border-radius: 12px;
  box-shadow: var(--shadow-lg); overflow: hidden; font-size: 12.5px; line-height: 18px;
}
.shot svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.shot .grow { flex: 1; }
.shot .mono { font-size: 11.5px; }
.s-side { background: var(--side); padding: 14px 10px; display: flex; flex-direction: column; gap: 1px; }
.s-brand { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 15px; letter-spacing: -.02em; padding: 2px 8px 16px; }
.shot .s-brand svg { width: 24px; height: 24px; stroke: none; }
.s-nav, .s-tree { display: flex; align-items: center; gap: 8px; padding: 5px 8px; border-radius: 6px; color: var(--text-2); white-space: nowrap; }
.s-nav svg, .s-tree svg { color: var(--el-400); }
.s-n { margin-left: auto; font-family: var(--mono); font-size: 10.5px; background: var(--accent-soft); color: var(--accent-text); border-radius: 4px; padding: 0 5px; line-height: 16px; }
.s-label { font-size: 11.5px; color: var(--muted); padding: 16px 8px 6px; }
.s-tree.l2 { padding-left: 22px; }
.s-tree.l3 { padding-left: 36px; }
.s-tree.on { background: var(--el-100); color: var(--text); font-weight: 600; }
.shot .dot { width: 7px; height: 7px; border-radius: 2px; display: inline-block; flex: none; }
.shot .dot.m { background: var(--blue-solid); }
.shot .dot.r { background: var(--green-solid); }

.s-main { padding: 18px 22px 20px; min-width: 0; }
.s-crumbs { color: var(--muted); font-size: 12px; }
.s-crumbs span { opacity: .6; margin: 0 3px; }
.s-head { display: flex; align-items: center; gap: 10px; margin-top: 8px; }
.s-title { font-size: 24px; line-height: 30px; font-weight: 500; letter-spacing: -.02em; }
.shot .s-star { color: var(--el-400); width: 16px; height: 16px; }
.s-desc { color: var(--text-2); margin-top: 4px; }
.s-tabs { display: flex; gap: 22px; margin: 16px 0 14px; }
.s-tabs span { display: flex; align-items: center; gap: 6px; padding-bottom: 7px; color: var(--muted); font-size: 13.5px; }
.s-tabs span.on { color: var(--text); box-shadow: inset 0 -2px 0 var(--text); }
.s-tabs svg { color: var(--el-400); }
.s-tabs .on svg { color: currentColor; }
.s-tabs b { font: 500 10.5px/16px var(--mono); background: var(--el-100); border-radius: 4px; padding: 0 5px; }
.s-tabs b.warn { background: var(--yellow-bg); color: var(--yellow); }
.s-toolbar { display: flex; align-items: center; gap: 6px; margin-bottom: 10px; }
.s-search { display: flex; align-items: center; gap: 7px; height: 30px; padding: 0 10px; border-radius: 6px; background: var(--input);
  box-shadow: inset 0 0 0 1px var(--input-line); color: var(--muted); min-width: 150px; white-space: nowrap; }
.s-seg { display: flex; background: var(--el-50); border-radius: 7px; padding: 2px; }
.s-seg span { padding: 3px 9px; border-radius: 5px; color: var(--text-2); font-weight: 500; }
.s-seg .on { background: var(--surface); color: var(--text); box-shadow: var(--seg-shadow); }
.s-btn { display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 11px; border-radius: 6px; background: var(--el-100); font-weight: 500; white-space: nowrap; }
.s-btn.primary { background: var(--accent); color: var(--accent-ink); font-weight: 600; }
.shot .s-btn svg.sm { width: 11px; height: 11px; }
.s-changes { display: flex; align-items: center; gap: 10px; padding: 4px 4px 4px 12px; border-radius: 8px; margin-bottom: 10px;
  background: color-mix(in srgb, var(--yellow-solid) 9%, transparent); }
.s-draft { display: flex; align-items: center; gap: 7px; font-weight: 600; white-space: nowrap; }
.s-draft i, .s-bad i { width: 6px; height: 6px; border-radius: 50%; background: var(--yellow-solid); }
.s-counts { color: var(--muted); font-size: 12px; white-space: nowrap; }
.s-counts .u { color: var(--yellow); } .s-counts .a { color: var(--blue); } .s-counts .d { color: var(--red); }
.s-bad { display: inline-flex; align-items: center; gap: 6px; background: var(--red-bg); color: var(--red); border-radius: 99px; padding: 0 9px;
  line-height: 22px; font-weight: 500; white-space: nowrap; }
.s-bad i { background: currentColor; }

.s-grid { background: var(--surface); border-radius: 8px; box-shadow: var(--card-shadow); overflow: hidden; }
.s-grid table { width: 100%; border-collapse: collapse; }
.s-grid th { text-align: left; font-weight: 500; font-size: 11.5px; color: var(--muted); height: 34px; padding: 0 10px; white-space: nowrap; }
.s-grid td { height: 34px; padding: 0 10px; border-top: 1px solid var(--line-soft); white-space: nowrap; }
.s-grid .r { text-align: right; }
.s-grid .num { font-family: var(--mono); font-size: 12px; }
.s-grid .key { font-family: var(--mono); font-size: 12px; font-weight: 500; background: color-mix(in srgb, var(--text) 3%, transparent); }
.shot .lk { width: 11px; height: 11px; vertical-align: -1px; color: var(--el-400); }
.s-grid .c-chk { width: 30px; padding-right: 0; }
.s-grid .box { display: inline-block; width: 13px; height: 13px; border-radius: 3px; box-shadow: inset 0 0 0 1.5px var(--el-150); vertical-align: middle; }
.s-grid .c-st { width: 30px; padding: 0 4px; }
.shot .c-st svg { width: 15px; height: 15px; vertical-align: middle; }
.c-st.ok { color: var(--green); } .c-st.wait { color: var(--yellow); } .c-st.add { color: var(--blue); }
.s-grid .pick { position: relative; padding-right: 24px; }
.s-grid .pick::after { content: ""; position: absolute; right: 11px; top: 50%; width: 5px; height: 5px; border-right: 1.5px solid var(--el-400);
  border-bottom: 1.5px solid var(--el-400); transform: translateY(-70%) rotate(45deg); }
.s-grid .draft { box-shadow: inset 2px 0 0 var(--yellow-solid); background: color-mix(in srgb, var(--yellow-solid) 10%, transparent); }
.s-grid tr.new td { background: color-mix(in srgb, var(--blue-solid) 7%, transparent); }
.s-grid .bad { box-shadow: inset 0 -2px 0 var(--red-solid); }
.s-error { display: flex; align-items: center; gap: 10px; margin-top: 10px; padding: 6px 6px 6px 12px; border-radius: 8px;
  background: color-mix(in srgb, var(--red-solid) 7%, transparent); font-size: 12px; white-space: nowrap; }
.s-tag { background: var(--red-bg); color: var(--red); border-radius: 99px; padding: 0 8px; line-height: 20px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; }
.s-fix { margin-left: auto; height: 24px; display: inline-flex; align-items: center; padding: 0 9px; border-radius: 6px; background: var(--el-100); font-weight: 500; }
.s-rail { border-left: 1px solid var(--line); padding: 20px 16px; display: flex; flex-direction: column; gap: 12px; }
.s-fact { display: flex; flex-direction: column; gap: 1px; }
.s-fact span:first-child { color: var(--muted); font-size: 11.5px; }
.s-fact span:last-child { font-weight: 500; display: flex; align-items: center; gap: 6px; }
.s-fact .good { color: var(--green); }
.s-fact .muted { color: var(--muted); font-weight: 400; }
.s-fact .path { font-size: 11px; line-height: 15px; display: block; overflow-wrap: anywhere; }
.s-rtabs { display: flex; align-items: center; gap: 14px; }
.s-rtabs span { display: inline-flex; align-items: center; gap: 5px; color: var(--muted); }
.s-n.warn { background: var(--yellow-bg); color: var(--yellow); }
.s-tabs b.bad { background: var(--red-bg); color: var(--red); }
.s-banner { display: flex; align-items: center; gap: 8px; margin: 10px 0 2px; padding: 4px 4px 4px 12px; border-radius: 8px;
  background: var(--blue-bg); color: var(--blue); }
.s-banner span:first-of-type { flex: 1; }
.s-banner b { font-weight: 600; }
.s-btn.sm { height: 24px; padding: 0 9px; background: var(--surface); color: var(--text); }
.s-icon { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 30px; color: var(--el-400); }
.s-seg span { display: inline-flex; align-items: center; gap: 4px; }
.shot .s-seg svg { width: 11px; height: 11px; }
.s-hint { display: inline-flex; align-items: center; gap: 5px; color: var(--accent-text); font-size: 12px; white-space: nowrap; }
.shot .s-hint svg { width: 12px; height: 12px; }
.shot .gear { width: 11px; height: 11px; margin-left: 6px; vertical-align: -1px; color: var(--el-400); opacity: .7; }

/* problem strip */
.problems { padding: 0 0 112px; }
.problems .row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.problem { border-top: 1px solid var(--line); padding-top: 20px; }
.problem .mono { color: var(--red); font-size: 12px; display: block; margin-bottom: 10px; }
.problem p { color: var(--text-2); }
.problem strong { color: var(--text); font-weight: 600; display: block; margin-bottom: 6px; }

/* flow */
.alt { background: var(--bg-2); }
.flow { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; counter-reset: step; }
.flow li { list-style: none; background: var(--surface); border-radius: var(--radius-lg); padding: 24px; position: relative; }
.flow li::before {
  counter-increment: step; content: "0" counter(step); font-family: var(--mono); font-size: 12px; color: var(--accent-text);
  display: block; margin-bottom: 18px;
}
.flow h3 { margin-bottom: 8px; }
.flow p { color: var(--text-2); font-size: 15px; }
.flow ol, .flow { padding: 0; margin: 0; }

/* two audiences */
.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.panel { background: var(--surface); border-radius: var(--radius-lg); padding: 36px; }
.panel h3 { font-size: 22px; letter-spacing: -.02em; margin: 6px 0 20px; }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.ticks li { padding-left: 28px; position: relative; color: var(--text-2); font-size: 15px; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 4px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.2l2.3 2.3 4.7-5' fill='none' stroke='%238b7dff' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat;
}

/* code */
.codes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-top: 24px; }
.code { background: var(--surface); border-radius: var(--radius-lg); overflow: hidden; min-width: 0; }
.code .head { display: flex; justify-content: space-between; padding: 10px 16px; font-size: 12px; color: var(--muted); border-bottom: 1px solid var(--line-soft); font-family: var(--mono); }
.code pre { margin: 0; padding: 16px; overflow-x: auto; font: 13px/1.7 var(--mono); color: var(--text-2); }
.code .c { color: var(--muted); }
.code .k { color: var(--accent-text); }
.code .s { color: var(--green); }

/* capability grid */
.caps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.cap { background: var(--bg); padding: 28px; }
.alt .cap { background: var(--bg-2); }
.cap h3 { margin-bottom: 8px; }
.cap p { color: var(--text-2); font-size: 15px; }
.cap .tag { font-family: var(--mono); font-size: 11.5px; color: var(--muted); display: block; margin-top: 14px; }

/* use cases */
.cases { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.case { border-radius: var(--radius-lg); background: var(--surface); padding: 24px; }
.case .k { display: inline-block; font-family: var(--mono); font-size: 11px; padding: 1px 8px; border-radius: 99px; margin-bottom: 14px; }
.case .k.m { background: var(--blue-bg); color: var(--blue); }
.case .k.r { background: var(--green-bg); color: var(--green); }
.case .k.x { background: var(--yellow-bg); color: var(--yellow); }
.case h3 { margin-bottom: 8px; }
.case p { color: var(--text-2); font-size: 14.5px; }

/* closing */
.cta { text-align: center; }
.cta h2 { max-width: 760px; margin: 0 auto; }
.cta .lead { margin: 18px auto 0; }
.cta .actions { display: flex; gap: 12px; justify-content: center; margin-top: 32px; flex-wrap: wrap; }

footer { border-top: 1px solid var(--line-soft); padding: 40px 0 56px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
footer .brand { font-size: 17px; color: var(--text); }
footer .brand svg { width: 26px; height: 26px; }
footer nav { display: flex; gap: 20px; margin-left: auto; flex-wrap: wrap; }
footer a { text-decoration: none; }
footer a:hover { color: var(--text); }

/* small screens */
@media (max-width: 1280px) {
  .shot .hide-w { display: none; }
}
@media (max-width: 1100px) {
  .shot { grid-template-columns: 188px minmax(0, 1fr); }
  .s-rail { display: none; }
}
@media (max-width: 980px) {
  .flow, .cases { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .caps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split, .codes { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 820px) {
  .shot { grid-template-columns: minmax(0, 1fr); }
  .s-side, .shot .hide-m { display: none; }
}
@media (max-width: 720px) {
  section { padding: 80px 0; }
  .wrap { padding: 0 16px; }
  nav.links { display: none; }
  header.top .btn { margin-left: auto; }
  .hero { padding: 56px 0 72px; }
  .problems .row, .flow, .cases, .caps { grid-template-columns: minmax(0, 1fr); }
  .shot .hide-s { display: none; }
  .s-main { padding: 16px 14px; }
  .s-grid { overflow-x: auto; }
  .s-search { min-width: 0; flex: 1; }
  .shot .s-toolbar .grow { display: none; }
  .panel { padding: 24px; }
  footer nav { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }