/* Steven Weaver — site styles
   Themes: dark (default) and light, switched with [data-theme] on <html>.
   Type: Schibsted Grotesk (UI), Source Serif 4 (long-form), JetBrains Mono (code only). All SIL OFL, self-hosted. */

@font-face { font-family: "Schibsted Grotesk"; src: url("/assets/fonts/schibsted-grotesk.woff2") format("woff2"); font-weight: 400 900; font-style: normal; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url("/assets/fonts/source-serif-4.woff2") format("woff2"); font-weight: 200 900; font-style: normal; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url("/assets/fonts/source-serif-4-italic.woff2") format("woff2"); font-weight: 200 900; font-style: italic; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("/assets/fonts/jetbrains-mono.woff2") format("woff2"); font-weight: 100 800; font-style: normal; font-display: swap; }

:root, :root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f2420;
  --bg-2: #122a25;
  --surface: #15322c;
  --surface-2: #1b3d36;
  --rule: #29493f;
  --rule-strong: #3c6559;
  --text: #e8f1ee;
  --text-2: #b6c9c2;
  --text-3: #94aca4;
  --accent: #7ee0b5;
  --accent-strong: #a8efd0;
  --accent-soft: rgba(126, 224, 181, 0.12);
  --on-accent: #0b1f1b;
  --amber: #f4b860;
  --grid: rgba(126, 224, 181, 0.07);
  --header-bg: rgba(15, 36, 32, 0.82);
  --shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.6);
  --img-frame: #ffffff;
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #ffffff;
  --bg-2: #f1f5f3;
  --surface: #ffffff;
  --surface-2: #f4f8f6;
  --rule: #d9e1dd;
  --rule-strong: #b9c7c1;
  --text: #172230;
  --text-2: #4b5866;
  --text-3: #5a6672;
  --accent: #1f5446;
  --accent-strong: #143a30;
  --accent-soft: rgba(31, 84, 70, 0.08);
  --on-accent: #ffffff;
  --amber: #9a6212;
  --grid: rgba(31, 84, 70, 0.07);
  --header-bg: rgba(255, 255, 255, 0.88);
  --shadow: 0 24px 60px -28px rgba(23, 34, 48, 0.35);
  --img-frame: #ffffff;
}
:root {
  /* Code console is dark in both themes */
  --code-bg: #0a1b17;
  --code-bar: #10261f;
  --code-rule: #22413a;
  --code-text: #dcebe5;
  --code-dim: #7d9a91;
  --code-kw: #7ee0b5;
  --code-str: #f4b860;
  --code-num: #9fd0ff;

  --sans: "Schibsted Grotesk", "Segoe UI", system-ui, -apple-system, sans-serif;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, ui-monospace, monospace;

  --step--1: 0.875rem;
  --step-0: 1rem;
  --step-1: 1.125rem;
  --step-2: 1.375rem;
  --step-3: 1.75rem;
  --step-4: clamp(1.9rem, 1.4rem + 2vw, 2.5rem);
  --step-5: clamp(2.3rem, 1.5rem + 3vw, 3.6rem);

  --wrap: 1160px;
  --gutter: 24px;
  --radius: 8px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 84px; background: var(--bg); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--sans); font-size: var(--step-0); line-height: 1.55;
  text-rendering: optimizeLegibility;
  transition: background-color .25s ease, color .25s ease;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-strong); text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }
::selection { background: var(--accent); color: var(--on-accent); }
h1, h2, h3, h4 { margin: 0; line-height: 1.12; letter-spacing: -0.015em; font-weight: 700; }
p { margin: 0 0 1em; }
kbd { font-family: var(--mono); font-size: 0.75em; padding: 2px 6px; border: 1px solid var(--rule-strong); border-bottom-width: 2px; border-radius: 4px; color: var(--text-2); background: var(--surface); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; padding: 0; margin: -1px; }
.skip-link { position: absolute; left: 16px; top: -48px; z-index: 200; background: var(--accent); color: var(--on-accent); padding: 10px 14px; border-radius: var(--radius); }
.skip-link:focus { top: 12px; color: var(--on-accent); }

/* Scroll progress */
.progress { position: fixed; top: 0; left: 0; height: 2px; width: 100%; z-index: 120; background: var(--accent); transform-origin: 0 50%; transform: scaleX(var(--progress, 0)); pointer-events: none; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; background: var(--header-bg); backdrop-filter: saturate(1.4) blur(12px); -webkit-backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid var(--rule); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.wordmark { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 1.0625rem; letter-spacing: -0.01em; }
.wordmark:hover { color: var(--text); }
.wordmark .mark { flex: none; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 7px; background: var(--accent); }
.wordmark .mark svg path { fill: var(--on-accent); }
.nav { display: flex; align-items: center; gap: 24px; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { position: relative; color: var(--text-2); text-decoration: none; font-size: 0.9375rem; font-weight: 500; padding: 6px 0; }
.nav-links a:hover, .nav-links a.is-active, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-links a.is-active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--accent); border-radius: 2px; }
.nav-tools { display: flex; align-items: center; gap: 8px; }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 36px; min-width: 36px; padding: 0 10px; border-radius: var(--radius); border: 1px solid var(--rule-strong); background: transparent; color: var(--text-2); font: 500 0.8125rem var(--sans); cursor: pointer; transition: color .15s, border-color .15s, background-color .15s; }
.icon-btn:hover { color: var(--text); border-color: var(--accent); background: var(--accent-soft); }
.icon-btn kbd { border: 0; background: none; padding: 0; font-size: 0.75rem; color: inherit; }
.theme-icon-light { display: none; }
:root[data-theme="light"] .theme-icon-light { display: block; }
:root[data-theme="light"] .theme-icon-dark { display: none; }
.nav-toggle { display: none; }
.cmd-label { display: none; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 10px 18px; border-radius: var(--radius); border: 1.5px solid var(--accent); font: 600 0.9375rem/1.2 var(--sans); text-decoration: none; cursor: pointer; transition: background-color .15s ease, color .15s ease, border-color .15s ease, transform .15s ease; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); color: var(--on-accent); }
.btn-secondary { background: transparent; color: var(--accent); }
.btn-secondary:hover { background: var(--accent-soft); color: var(--accent-strong); }
.btn-small { min-height: 36px; padding: 6px 12px; font-size: 0.8125rem; }

/* Hero */
.hero { position: relative; padding: 72px 0 80px; overflow: hidden; isolation: isolate; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 40px 40px; background-position: -1px -1px;
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 30% 30%, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse 70% 80% at 30% 30%, #000 30%, transparent 75%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(360px circle at var(--mx, 70%) var(--my, 30%), var(--accent-soft), transparent 70%);
  opacity: 0; transition: opacity .4s ease;
}
.hero.is-lit::after { opacity: 1; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 540px); gap: 56px; align-items: center; }
.hero-meta { display: flex; align-items: center; gap: 14px; margin-bottom: 26px; }
.hero-meta img { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; object-position: 50% 18%; border: 2px solid var(--accent); }
.hero-meta p { margin: 0; font-size: var(--step--1); color: var(--text-2); line-height: 1.45; }
.hero-meta strong { display: block; color: var(--text); font-size: var(--step-0); }
.hero h1 { font-size: var(--step-5); font-weight: 800; letter-spacing: -0.035em; line-height: 1.02; max-width: 15ch; text-wrap: balance; }
.hero .lede { margin-top: 24px; font-size: var(--step-1); color: var(--text-2); max-width: 54ch; line-height: 1.6; }
.hero .lede strong { color: var(--text); font-weight: 600; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 30px; }
.cta-links { display: flex; gap: 18px; margin-left: 6px; }
.cta-links a { font-weight: 600; font-size: 0.9375rem; }
.hint { margin-top: 22px; font-size: var(--step--1); color: var(--text-3); }

/* SQL console */
.console { background: var(--code-bg); color: var(--code-text); border: 1px solid var(--code-rule); border-radius: 12px; box-shadow: var(--shadow); overflow: hidden; font-family: var(--mono); font-size: 0.8125rem; }
.console-bar { display: flex; align-items: center; gap: 12px; padding: 0 8px 0 14px; height: 44px; background: var(--code-bar); border-bottom: 1px solid var(--code-rule); }
.dots { display: flex; gap: 6px; flex: none; }
.dots i { width: 10px; height: 10px; border-radius: 50%; background: #2c4a42; }
.dots i:first-child { background: #3f6b5e; }
.console-tabs { display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
.console-tab { flex: none; font: 500 0.78rem var(--mono); color: var(--code-dim); background: transparent; border: 0; border-radius: 6px; padding: 7px 10px; cursor: pointer; }
.console-tab:hover { color: var(--code-text); background: rgba(255,255,255,.04); }
.console-tab[aria-selected="true"] { color: var(--code-text); background: rgba(126,224,181,.1); box-shadow: inset 0 -2px 0 var(--code-kw); }
.console-tab:focus-visible { outline-color: var(--code-kw); }
.run-btn { margin-left: auto; flex: none; display: inline-flex; align-items: center; gap: 6px; font: 600 0.75rem var(--mono); color: #0b1f1b; background: var(--code-kw); border: 0; border-radius: 6px; padding: 6px 10px; cursor: pointer; }
.run-btn:hover { background: #a8efd0; }
.run-btn:focus-visible { outline-color: #fff; }
.console-panel { padding: 16px 18px 6px; }
.console-panel[hidden] { display: none; }
.sql { margin: 0; white-space: pre-wrap; line-height: 1.65; min-height: 6.6em; color: var(--code-text); }
.sql .kw { color: var(--code-kw); }
.sql .str { color: var(--code-str); }
.sql .num { color: var(--code-num); }
.sql .cm { color: var(--code-dim); font-style: italic; }
.caret { display: inline-block; width: 7px; height: 1.1em; vertical-align: -0.2em; background: var(--code-kw); margin-left: 1px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.result { width: 100%; border-collapse: collapse; margin: 14px 0 8px; font-size: 0.8rem; }
.result th { text-align: left; font-weight: 500; color: var(--code-dim); padding: 6px 10px 6px 0; border-bottom: 1px solid var(--code-rule); }
.result td { padding: 8px 10px 8px 0; border-bottom: 1px dashed var(--code-rule); vertical-align: top; color: var(--code-text); }
.result td.v { color: var(--code-kw); font-weight: 700; white-space: nowrap; text-align: right; padding-right: 0; }
.result th.v { text-align: right; padding-right: 0; }
.result tr { transition: opacity .25s ease, transform .25s ease; }
.result tr.pending { opacity: 0; transform: translateX(-6px); }
.console-status { display: flex; justify-content: space-between; gap: 12px; padding: 8px 18px 12px; color: var(--code-dim); font-size: 0.72rem; }
.console-status .ok::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--code-kw); margin-right: 7px; vertical-align: 1px; }

/* Sections */
.section { padding: 96px 0; position: relative; }
.section-alt { background: var(--bg-2); }
.section-head { max-width: 700px; margin-bottom: 44px; }
.section-head h2 { font-size: var(--step-4); letter-spacing: -0.025em; }
.section-head p { margin-top: 14px; color: var(--text-2); font-size: var(--step-1); }
.section-head .path { display: inline-block; font-family: var(--mono); font-size: 0.8rem; color: var(--accent); margin-bottom: 14px; }

/* Impact explorer */
.impact { border-top: 1px solid var(--rule-strong); }
.impact details { border-bottom: 1px solid var(--rule); }
.impact summary { list-style: none; display: grid; grid-template-columns: minmax(0, 1fr) 210px 28px; gap: 24px; align-items: center; padding: 22px 4px; cursor: pointer; border-radius: 6px; transition: background-color .15s ease; }
.impact summary::-webkit-details-marker { display: none; }
.impact summary:hover { background: var(--accent-soft); }
.impact .q { font-size: var(--step-1); font-weight: 600; letter-spacing: -0.01em; line-height: 1.35; }
.impact .q small { display: block; margin-top: 4px; font-size: var(--step--1); font-weight: 400; color: var(--text-3); }
.impact .fig { text-align: right; }
.result-figure { display: block; font-size: 2.1rem; font-weight: 800; letter-spacing: -0.03em; line-height: 1; color: var(--accent); font-variant-numeric: tabular-nums lining-nums; }
.result-label { display: block; margin-top: 5px; font-size: 0.8125rem; color: var(--text-2); line-height: 1.35; }
.chev { width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--rule-strong); display: grid; place-items: center; color: var(--text-2); transition: transform .2s ease, background-color .15s, color .15s; }
.impact details[open] .chev { transform: rotate(45deg); background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.impact .detail { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 10px 24px; padding: 4px 4px 28px; max-width: 900px; }
.impact .detail dt { font-weight: 600; font-size: 0.9375rem; }
.impact .detail dd { margin: 0; color: var(--text-2); }
@media (prefers-reduced-motion: no-preference) {
  .impact details[open] .detail { animation: open-in .25s ease; }
  @keyframes open-in { from { opacity: 0; transform: translateY(-4px); } }
}
.footnote { margin-top: 18px; font-size: var(--step--1); color: var(--text-3); }

/* Approach pipeline */
.pipeline { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; counter-reset: step; position: relative; }
.pipeline li { counter-increment: step; position: relative; padding: 0 32px 0 0; }
.pipeline li::before { content: counter(step); display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; border: 2px solid var(--accent); color: var(--accent); background: var(--bg); font: 700 1rem var(--mono); position: relative; z-index: 1; margin-bottom: 22px; }
.pipeline li::after { content: ""; position: absolute; top: 22px; left: 44px; right: 0; height: 2px; background: repeating-linear-gradient(90deg, var(--rule-strong) 0 6px, transparent 6px 12px); }
.pipeline li:last-child::after { display: none; }
.pipeline h3 { font-size: var(--step-2); margin-bottom: 10px; }
.pipeline p { color: var(--text-2); margin: 0; max-width: 36ch; }
.pipeline code { font-family: var(--mono); font-size: 0.78rem; color: var(--accent); display: block; margin-top: 14px; }

/* Data time machine */
.lab { display: grid; grid-template-columns: 340px minmax(0, 1fr); gap: 0; background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); }
.lab-controls { padding: 28px; border-right: 1px solid var(--rule); display: flex; flex-direction: column; gap: 22px; }
.control label { display: flex; justify-content: space-between; align-items: baseline; font-weight: 600; font-size: 0.9375rem; margin-bottom: 10px; }
.control output { font-family: var(--mono); font-weight: 600; color: var(--accent); font-size: 1rem; }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 28px; background: transparent; cursor: pointer; }
input[type="range"]::-webkit-slider-runnable-track { height: 4px; border-radius: 4px; background: linear-gradient(90deg, var(--accent) var(--fill, 50%), var(--rule-strong) var(--fill, 50%)); }
input[type="range"]::-moz-range-track { height: 4px; border-radius: 4px; background: var(--rule-strong); }
input[type="range"]::-moz-range-progress { height: 4px; border-radius: 4px; background: var(--accent); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--bg); border: 3px solid var(--accent); margin-top: -8px; transition: transform .15s; }
input[type="range"]::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: var(--bg); border: 3px solid var(--accent); }
input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.2); }
input[type="range"]:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.presets p { font-weight: 600; font-size: 0.9375rem; margin-bottom: 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { font: 500 0.8125rem var(--sans); color: var(--text-2); background: transparent; border: 1px solid var(--rule-strong); border-radius: 999px; padding: 6px 12px; cursor: pointer; transition: all .15s; }
.chip:hover { color: var(--text); border-color: var(--accent); }
.chip[aria-pressed="true"] { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.lab-out { padding: 28px 28px 20px; display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.readout { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.readout div { border-left: 2px solid var(--rule-strong); padding-left: 14px; }
.readout div:first-child { border-color: var(--accent); }
.readout dt { font-size: 0.8125rem; color: var(--text-3); margin-bottom: 4px; }
.readout dd { margin: 0; font-size: 1.6rem; font-weight: 800; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; line-height: 1.1; }
.readout dd.neg { color: var(--amber); }
.lab-sentence { margin: 0; color: var(--text-2); font-size: 0.9875rem; min-height: 3em; }
.lab-sentence strong { color: var(--text); }
.chart { position: relative; }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .axis text { font: 11px var(--mono); fill: var(--text-3); }
.chart .gridline { stroke: var(--rule); stroke-width: 1; }
.chart .line-all { fill: none; stroke: var(--text-3); stroke-width: 1.5; opacity: .55; }
.chart .line-sel { fill: none; stroke: var(--accent); stroke-width: 2.5; stroke-linejoin: round; }
.chart .band { fill: var(--accent-soft); }
.chart .pt { fill: var(--bg); stroke: var(--accent); stroke-width: 2.5; }
.chart .hover-line { stroke: var(--text-3); stroke-dasharray: 3 3; }
.chart .hover-dot { fill: var(--amber); }
.tip { position: absolute; pointer-events: none; transform: translate(-50%, -120%); background: var(--surface-2); border: 1px solid var(--rule-strong); color: var(--text); font: 500 0.75rem var(--mono); padding: 5px 8px; border-radius: 6px; white-space: nowrap; opacity: 0; transition: opacity .1s; }
.tip.on { opacity: 1; }
.lab-foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 20px; font-size: 0.8125rem; color: var(--text-3); border-top: 1px solid var(--rule); padding-top: 14px; }

/* Featured project */
.feature { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; margin-top: 56px; }
.feature-shot { margin: 0; position: relative; }
.feature-shot img { border-radius: 10px; border: 1px solid var(--rule); background: var(--img-frame); box-shadow: var(--shadow); transition: transform .3s ease; }
.feature-shot a:hover img { transform: translateY(-3px); }
.feature-shot figcaption { margin-top: 10px; font-size: var(--step--1); color: var(--text-3); }
.kicker { font-family: var(--mono); font-size: 0.78rem; color: var(--accent); margin-bottom: 12px; }
.feature h3 { font-size: var(--step-3); letter-spacing: -0.02em; }
.feature p { color: var(--text-2); margin-top: 14px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 18px 0 24px; padding: 0; list-style: none; }
.tags li { font: 500 0.75rem var(--mono); color: var(--text-2); border: 1px solid var(--rule-strong); border-radius: 5px; padding: 4px 8px; }
.link-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* Experience timeline */
.timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--accent), var(--rule)); }
.role { position: relative; display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 32px; padding: 0 0 40px 40px; }
.role::before { content: ""; position: absolute; left: 0; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent); }
.role:first-child::before { background: var(--accent); box-shadow: 0 0 0 5px var(--accent-soft); }
.role time { font: 500 0.8125rem var(--mono); color: var(--text-3); padding-top: 3px; }
.role h3 { font-size: var(--step-2); letter-spacing: -0.015em; }
.role .org { color: var(--text-2); margin: 4px 0 12px; font-size: 0.9375rem; }
.role ul { margin: 0; padding-left: 1.1em; color: var(--text-2); }
.role li { margin-bottom: 6px; max-width: 72ch; }
.role li::marker { color: var(--accent); }

/* About */
.about { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 64px; }
.about-story { font-family: var(--serif); font-size: 1.1875rem; line-height: 1.7; max-width: 62ch; color: var(--text-2); }
.about-story p:first-child { font-family: var(--sans); font-size: 1.375rem; line-height: 1.5; font-weight: 600; letter-spacing: -0.01em; color: var(--text); }
.facts { margin: 0; display: grid; gap: 16px; align-content: start; }
.facts div { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 14px 16px; }
.facts dt { font: 500 0.75rem var(--mono); color: var(--text-3); margin-bottom: 4px; }
.facts dd { margin: 0; font-weight: 600; }
.facts dd span { display: block; font-weight: 400; color: var(--text-2); font-size: 0.9375rem; }

/* Skills */
.skills { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.skill-group { background: var(--surface); border: 1px solid var(--rule); border-radius: 12px; padding: 22px; }
.skill-group h3 { font-size: var(--step-1); margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.skill-group h3 code { font: 500 0.75rem var(--mono); color: var(--accent); }
.skill-group ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.skill-group li { font-size: 0.875rem; color: var(--text-2); background: var(--surface-2); border: 1px solid var(--rule); border-radius: 6px; padding: 5px 10px; }
.skill-group li strong { color: var(--text); font-weight: 600; }

/* Contact */
.contact { padding: 110px 0; position: relative; overflow: hidden; isolation: isolate; background: var(--bg-2); border-top: 1px solid var(--rule); }
.contact::before { content: ""; position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 40px 40px; -webkit-mask-image: radial-gradient(ellipse 60% 90% at 80% 50%, #000 20%, transparent 70%); mask-image: radial-gradient(ellipse 60% 90% at 80% 50%, #000 20%, transparent 70%); }
.contact h2 { font-size: var(--step-5); font-weight: 800; letter-spacing: -0.035em; max-width: 16ch; }
.contact p { color: var(--text-2); font-size: var(--step-1); max-width: 56ch; margin-top: 20px; }
.contact .cta-row { margin-top: 34px; }
.copy-btn[data-copied="true"] { background: var(--accent); color: var(--on-accent); }

/* Footer */
.site-footer { padding: 28px 0 36px; font-size: var(--step--1); color: var(--text-3); border-top: 1px solid var(--rule); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px 24px; }
.site-footer p { margin: 0; }
.site-footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
.site-footer a { color: var(--text-2); }

/* Command palette */
.palette { position: fixed; inset: 0; z-index: 300; display: none; align-items: flex-start; justify-content: center; padding: 12vh 16px 16px; background: rgba(4, 12, 10, 0.55); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); }
.palette.open { display: flex; }
.palette-box { width: 100%; max-width: 560px; background: var(--surface); border: 1px solid var(--rule-strong); border-radius: 14px; box-shadow: 0 30px 80px -20px rgba(0,0,0,.6); overflow: hidden; }
@media (prefers-reduced-motion: no-preference) { .palette.open .palette-box { animation: pop .18s ease; } @keyframes pop { from { opacity: 0; transform: translateY(-8px) scale(.98); } } }
.palette-input { display: flex; align-items: center; gap: 10px; padding: 0 16px; border-bottom: 1px solid var(--rule); }
.palette-input svg { flex: none; color: var(--text-3); }
.palette-input input { flex: 1; height: 54px; border: 0; background: transparent; color: var(--text); font: 500 1rem var(--sans); outline: none; }
.palette-input input::placeholder { color: var(--text-3); }
.palette-list { list-style: none; margin: 0; padding: 8px; max-height: 50vh; overflow-y: auto; }
.palette-list li { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 12px; border-radius: 8px; cursor: pointer; color: var(--text-2); font-size: 0.9375rem; }
.palette-list li small { font: 500 0.72rem var(--mono); color: var(--text-3); }
.palette-list li[aria-selected="true"] { background: var(--accent-soft); color: var(--text); box-shadow: inset 2px 0 0 var(--accent); }
.palette-empty { padding: 18px 20px; color: var(--text-3); font-size: 0.9375rem; }
.palette-foot { display: flex; gap: 16px; padding: 10px 16px; border-top: 1px solid var(--rule); font-size: 0.75rem; color: var(--text-3); }

/* Toast */
.toast { position: fixed; left: 50%; bottom: 24px; z-index: 310; transform: translate(-50%, 20px); background: var(--accent); color: var(--on-accent); font-weight: 600; font-size: 0.875rem; padding: 10px 16px; border-radius: 8px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; }
.toast.on { opacity: 1; transform: translate(-50%, 0); }

/* Case study page */
.cs-hero { position: relative; padding: 56px 0 40px; border-bottom: 1px solid var(--rule); overflow: hidden; isolation: isolate; }
.cs-hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 40px 40px; -webkit-mask-image: radial-gradient(ellipse 70% 100% at 20% 0%, #000 20%, transparent 70%); mask-image: radial-gradient(ellipse 70% 100% at 20% 0%, #000 20%, transparent 70%); }
.crumb { font: 500 0.8rem var(--mono); color: var(--text-3); margin-bottom: 20px; }
.crumb a { color: var(--text-2); }
.cs-hero h1 { font-size: var(--step-5); font-weight: 800; letter-spacing: -0.035em; line-height: 1.04; max-width: 18ch; }
.cs-hero .dek { margin-top: 20px; font-size: var(--step-2); color: var(--text-2); max-width: 54ch; line-height: 1.45; }
.cs-meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 36px 0 0; }
.cs-meta div { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 12px 14px; }
.cs-meta dt { font: 500 0.75rem var(--mono); color: var(--text-3); }
.cs-meta dd { margin: 4px 0 0; font-weight: 600; font-size: 0.9375rem; }
.cs-body { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 64px; padding: 56px var(--gutter) 96px; }
.toc { position: sticky; top: 92px; align-self: start; font-size: var(--step--1); }
.toc p { font: 600 0.8rem var(--mono); color: var(--text-3); margin-bottom: 10px; }
.toc ol { margin: 0; padding: 0; list-style: none; border-left: 1px solid var(--rule); }
.toc li { margin: 0; }
.toc a { display: block; padding: 5px 0 5px 14px; margin-left: -1px; border-left: 2px solid transparent; color: var(--text-3); text-decoration: none; }
.toc a:hover { color: var(--text); }
.toc a.is-active { color: var(--accent); border-left-color: var(--accent); }
.prose { font-family: var(--serif); font-size: 1.1875rem; line-height: 1.7; max-width: 70ch; color: var(--text-2); min-width: 0; }
.prose strong { color: var(--text); }
.prose h2 { font-family: var(--sans); color: var(--text); font-size: var(--step-3); letter-spacing: -0.02em; margin: 64px 0 16px; }
.prose section:first-child h2 { margin-top: 0; }
.prose h3 { font-family: var(--sans); color: var(--text); font-size: var(--step-1); margin: 28px 0 8px; }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li { margin-bottom: 8px; }
.prose li::marker { color: var(--accent); }
.prose code { font-family: var(--mono); font-size: 0.8em; background: var(--surface-2); color: var(--text); padding: 2px 6px; border-radius: 4px; border: 1px solid var(--rule); }
.prose figure { margin: 32px 0; }
.prose figure img { border: 1px solid var(--rule); border-radius: var(--radius); background: var(--img-frame); }
.prose figcaption { font-family: var(--sans); font-size: var(--step--1); color: var(--text-3); margin-top: 10px; line-height: 1.5; }
.prose .callout { font-family: var(--sans); color: var(--text); font-size: var(--step-1); line-height: 1.55; background: var(--accent-soft); border-left: 3px solid var(--accent); padding: 20px 24px; border-radius: 0 var(--radius) var(--radius) 0; margin: 28px 0; }
.prose .callout p:last-child { margin: 0; }
.prose .lab { font-family: var(--sans); margin: 32px 0; grid-template-columns: 1fr; }
.prose .lab .lab-controls { border-right: 0; border-bottom: 1px solid var(--rule); }
.data-table { width: 100%; border-collapse: collapse; font-family: var(--sans); font-size: 0.9375rem; margin: 24px 0; color: var(--text-2); }
.data-table th, .data-table td { text-align: left; padding: 12px 14px 12px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.data-table thead th { border-bottom: 2px solid var(--rule-strong); font: 500 0.78rem var(--mono); color: var(--text-3); }
.data-table td.num { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--accent); white-space: nowrap; }
.disclaimer { font-family: var(--sans); font-size: var(--step--1); color: var(--text-3); }
.next-cta { margin-top: 64px; padding-top: 28px; border-top: 1px solid var(--rule-strong); font-family: var(--sans); }
.next-cta p { font-size: var(--step-1); color: var(--text); margin-bottom: 16px; }

/* Hero byline */
.hero-meta .byline { display: block; margin-top: 2px; color: var(--text-2); }
.hero-meta .byline a { color: var(--accent); text-decoration: none; border-bottom: 1px solid currentColor; }

/* Capabilities lens */
.lens-switch { display: inline-flex; padding: 4px; gap: 4px; border: 1px solid var(--rule-strong); border-radius: 12px; background: var(--surface); margin-bottom: 28px; max-width: 100%; }
.lens-tab { font: 600 0.9375rem var(--sans); color: var(--text-2); background: transparent; border: 0; border-radius: 9px; padding: 10px 18px; cursor: pointer; transition: background-color .2s ease, color .2s ease; }
.lens-tab:hover { color: var(--text); }
.lens-tab[aria-selected="true"] { background: var(--accent); color: var(--on-accent); }
.lens-panel[hidden] { display: none; }
@media (prefers-reduced-motion: no-preference) { .lens-panel:not([hidden]) .cap { animation: open-in .3s ease both; } .lens-panel .cap:nth-child(2) { animation-delay: .04s; } .lens-panel .cap:nth-child(3) { animation-delay: .08s; } .lens-panel .cap:nth-child(4) { animation-delay: .12s; } .lens-panel .cap:nth-child(5) { animation-delay: .16s; } .lens-panel .cap:nth-child(6) { animation-delay: .2s; } }
.cap-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.cap { background: var(--surface); border: 1px solid var(--rule); border-radius: 12px; padding: 22px; display: flex; flex-direction: column; gap: 10px; transition: border-color .2s ease, transform .2s ease; }
.cap:hover { border-color: var(--accent); transform: translateY(-2px); }
.cap-metric { align-self: flex-start; font: 600 0.78rem var(--mono); color: var(--accent); background: var(--accent-soft); border-radius: 6px; padding: 4px 8px; }
.cap h3 { font-size: var(--step-1); letter-spacing: -0.01em; line-height: 1.25; }
.cap p { margin: 0; color: var(--text-2); font-size: 0.9375rem; }
.lens-tools { margin: 22px 0 0; color: var(--text-2); font-size: 0.9375rem; max-width: 90ch; }
.lens-tools strong { color: var(--text); }

/* Book */
.book-wrap { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 64px; align-items: center; }
.book-art { display: grid; place-items: center; }
.book-art svg { width: 100%; max-width: 340px; height: auto; overflow: visible; }
.book-art .layer path { stroke: var(--accent); stroke-width: 1.5; fill: var(--surface); }
.book-art .l0 path { fill: var(--accent); }
.book-art .l1 path { fill: var(--surface-2); }
@media (prefers-reduced-motion: no-preference) {
  .book-art .layer { transition: transform .5s cubic-bezier(.2,.8,.2,1); }
  .book-section:hover .l0 { transform: translateY(-14px); }
  .book-section:hover .l1 { transform: translateY(-6px); }
  .book-section:hover .l3 { transform: translateY(6px); }
}
.book-copy h2 { font-family: var(--serif); font-style: italic; font-weight: 600; font-size: var(--step-5); letter-spacing: -0.02em; line-height: 1; }
.book-copy h2 cite { font-style: inherit; }
.book-sub { font-size: var(--step-2); color: var(--accent); font-weight: 600; margin: 12px 0 0; }
.book-desc { color: var(--text-2); font-size: var(--step-1); margin: 16px 0 0; max-width: 46ch; }
.book-meta { display: flex; flex-wrap: wrap; gap: 12px 32px; margin: 24px 0 28px; }
.book-meta dt { font: 500 0.75rem var(--mono); color: var(--text-3); }
.book-meta dd { margin: 2px 0 0; font-weight: 600; }
@media (max-width: 1040px) { .cap-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 860px) { .book-wrap { grid-template-columns: 1fr; gap: 24px; } .book-art svg { max-width: 220px; } }
@media (max-width: 640px) { .cap-grid { grid-template-columns: 1fr; } .lens-switch { display: flex; } .lens-tab { flex: 1; padding: 10px 8px; font-size: 0.875rem; } }

/* Interactive report (web version of the Power BI report) */
.report-band { padding: 56px 0 24px; scroll-margin-top: 72px; }
.report-head { max-width: 720px; margin-bottom: 24px; }
.report-head h2 { font-size: var(--step-4); letter-spacing: -0.025em; }
.report-head p { margin-top: 10px; color: var(--text-2); font-size: var(--step-1); }
.report { background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.report-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; padding: 10px 14px; border-bottom: 1px solid var(--rule); background: var(--surface-2); }
.report-tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.report-tab { font: 600 0.875rem var(--sans); color: var(--text-2); background: transparent; border: 1px solid transparent; border-radius: 8px; padding: 8px 14px; cursor: pointer; }
.report-tab:hover { color: var(--text); background: var(--accent-soft); }
.report-tab[aria-selected="true"] { color: var(--on-accent); background: var(--accent); }
.report-src { font: 500 0.75rem var(--mono); color: var(--text-3); }
.report-page { padding: 22px; }
.report-page[hidden] { display: none; }
.kpis { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; margin: 0 0 22px; }
.kpi { border: 1px solid var(--rule); border-radius: 10px; padding: 14px 16px; background: var(--bg); }
.kpi dt { font-size: 0.8125rem; color: var(--text-2); font-weight: 600; line-height: 1.3; }
.kpi dd:not(.kpi-note) { margin: 8px 0 4px; font-size: 1.75rem; font-weight: 800; letter-spacing: -0.02em; color: var(--accent); font-variant-numeric: tabular-nums; }
.kpi .kpi-note { margin: 0; font-size: 0.75rem; font-weight: 400; letter-spacing: 0; color: var(--text-3); line-height: 1.35; }
.report-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.rchart { margin: 0; border: 1px solid var(--rule); border-radius: 10px; padding: 16px 16px 8px; background: var(--bg); min-width: 0; }
.rchart figcaption { font-size: 0.8125rem; color: var(--text-3); line-height: 1.45; margin-bottom: 8px; min-height: 2.9em; }
.rchart figcaption strong { display: block; color: var(--text); font-size: 0.9375rem; margin-bottom: 2px; }
.rchart .ax { font: 13px var(--mono); fill: var(--text-3); }
.rchart .ax.sub { font-size: 11px; }
.rchart .ax.note { fill: var(--text-2); }
.rchart .val { font: 700 15px var(--sans); fill: var(--text); }
.rchart .bar { fill: var(--accent); transition: opacity .15s; cursor: default; }
.rchart .bar:hover, .rchart .bar:focus { opacity: .8; outline: none; }
.rchart .bar:focus-visible { stroke: var(--text); stroke-width: 2; }
.rchart .bar-neg { fill: var(--amber); }
.rchart .bar-partial { opacity: .45; }
.rchart .bar-cur { fill: var(--amber); }
.rchart [role="button"] { cursor: pointer; }
.rchart .bar-sel { stroke: var(--text); stroke-width: 2.5; }
.rchart .median-line { stroke: var(--text-3); stroke-dasharray: 5 4; }
.rchart .zero-line { stroke: var(--amber); stroke-width: 1.5; }
.rchart .pt-cur { fill: var(--amber); stroke: var(--bg); stroke-width: 2; }
.table-wrap { margin-top: 18px; overflow-x: auto; }
.sortable { margin: 0; }
.sortable th button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
.sortable th button:hover { color: var(--text); }
.sortable th.num-h, .sortable td.num { text-align: right; }
.sortable td.num { color: var(--text); font-weight: 600; }
.sortable td.neg { color: var(--amber); }
.report-embed iframe { display: block; width: 100%; aspect-ratio: 16 / 10; border: 0; border-radius: 8px; background: #fff; }
.report-note { margin-top: 12px; font-size: var(--step--1); color: var(--text-3); }
details.original { font-family: var(--sans); margin: 20px 0; border: 1px solid var(--rule); border-radius: var(--radius); padding: 0 18px; }
details.original summary { cursor: pointer; padding: 14px 0; font-weight: 600; color: var(--text); font-size: 1rem; }
details.original[open] summary { border-bottom: 1px solid var(--rule); margin-bottom: 8px; }
@media (max-width: 1040px) { .kpis { grid-template-columns: repeat(3, minmax(0, 1fr)); } .report-grid { grid-template-columns: 1fr; } }
@media (max-width: 640px) {
  .kpis { grid-template-columns: 1fr 1fr; } .kpi dd { font-size: 1.4rem; }
  .report-page { padding: 14px; } .rchart { padding: 12px 10px 6px; }
  .report-src { display: none; } .report-tab { padding: 7px 10px; font-size: 0.8125rem; }
}

/* 404 */
.notfound { padding: 120px 0; }
.notfound .path { font-family: var(--mono); color: var(--accent); margin-bottom: 16px; }
.notfound h1 { font-size: var(--step-5); font-weight: 800; letter-spacing: -0.03em; }
.notfound p { margin: 16px 0 28px; color: var(--text-2); font-size: var(--step-1); }

/* Responsive */
@media (max-width: 1040px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 44px; }
  .hero h1 { max-width: 18ch; }
  .lab { grid-template-columns: 1fr; }
  .lab-controls { border-right: 0; border-bottom: 1px solid var(--rule); }
  .feature { grid-template-columns: 1fr; gap: 28px; }
  .about { grid-template-columns: 1fr; gap: 40px; }
  .cs-body { grid-template-columns: 1fr; gap: 32px; }
  .toc { position: static; border: 1px solid var(--rule); border-radius: var(--radius); padding: 16px 20px; }
  .cs-meta { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .nav-links { display: none; }
  .pipeline { grid-template-columns: 1fr; gap: 28px; }
  .pipeline li { padding: 0 0 0 64px; }
  .pipeline li::before { position: absolute; left: 0; top: 0; margin: 0; }
  .pipeline li::after { top: 48px; left: 21px; right: auto; width: 2px; height: calc(100% - 20px); background: repeating-linear-gradient(180deg, var(--rule-strong) 0 6px, transparent 6px 12px); }
  .skills { grid-template-columns: 1fr; }
  .role { grid-template-columns: 1fr; gap: 6px; }
}
@media (max-width: 640px) {
  :root { --gutter: 16px; }
  .site-header .wrap { height: 58px; }
  .nav-tools .resume-btn { display: none; }
  .cmd-btn kbd { display: none; }
  .cmd-label { display: inline; }
  .hero { padding: 36px 0 56px; }
  .cta-links { margin-left: 0; width: 100%; }
  .console { font-size: 0.75rem; }
  .console .dots { display: none; }
  .console-bar { padding-left: 6px; gap: 6px; }
  .console-tab { padding: 7px 8px; }
  .console-panel { padding: 14px 14px 4px; }
  .console-status { padding: 8px 14px 12px; }
  .section { padding: 64px 0; }
  .section-head { margin-bottom: 30px; }
  .impact summary { grid-template-columns: minmax(0, 1fr) 28px; gap: 12px 16px; }
  .impact .fig { grid-column: 1; grid-row: 2; text-align: left; }
  .impact .chev { grid-column: 2; grid-row: 1 / span 2; }
  .impact .detail { grid-template-columns: 1fr; gap: 2px; }
  .impact .detail dd { margin-bottom: 10px; }
  .lab-controls, .lab-out { padding: 20px; }
  .readout { grid-template-columns: 1fr 1fr; }
  .readout div:first-child { grid-column: 1 / -1; }
  .readout dd { font-size: 1.35rem; }
  .role { padding-left: 32px; }
  .book { grid-template-columns: 1fr; padding: 24px; }
  .contact { padding: 72px 0; }
  .cs-meta { grid-template-columns: 1fr 1fr; gap: 10px; }
  .prose { font-size: 1.0625rem; }
  .data-table { font-size: 0.875rem; }
  .palette { padding-top: 8vh; }
  .palette-foot { display: none; }
}

@media (pointer: coarse) { .hint { display: none !important; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .caret { display: none; }
}

@media print {
  .site-header, .progress, .contact, .site-footer, .toc, .skip-link, .palette, .console, .lab { display: none !important; }
  :root { --bg: #fff; --text: #000; --text-2: #222; }
}