/* ShearKey Group — site stylesheet
   Layout concept: a structural drawing set. Each section is a "sheet" with a title-block rail
   (sheet number + section name) on the left and content on the right; the hero is a
   foundation shear-key section detail, the firm's namesake. */

@font-face { font-family: "Archivo SK"; src: url("fonts/archivo.woff2") format("woff2"); font-weight: 400 800; font-stretch: 75% 115%; font-display: swap; }
@font-face { font-family: "Source Serif SK"; src: url("fonts/source-serif.woff2") format("woff2"); font-weight: 400 700; font-display: swap; }
@font-face { font-family: "Source Serif SK"; src: url("fonts/source-serif-italic.woff2") format("woff2"); font-weight: 400 500; font-style: italic; font-display: swap; }
@font-face { font-family: "Plex Mono SK"; src: url("fonts/plex-mono-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Plex Mono SK"; src: url("fonts/plex-mono-500.woff2") format("woff2"); font-weight: 500; font-display: swap; }

:root {
  /* Color: khaki field-book ground, navy ink, safety-orange accent, deep-khaki detail */
  --paper: #f1ece0;
  --paper-2: #e5ddc9;
  --sheet: #f8f5ee;
  --ink: #12223f;
  --ink-2: #2e4064;
  --ink-3: #66708a;
  --rule: #d8ceb7;
  --rule-strong: #a99c7e;
  --accent: #c9561a;
  --accent-ink: #ffffff;
  --accent-soft: #f5dcc6;
  --rust: #8c7a4f;
  --ok: #2c7a4b;
  --err: #a83a2e;
  --hero-bg: #0f1e3a;
  --hero-ink: #f1ece0;
  --hero-dim: #b3ad94;
  --hero-line: #2b4069;
  --hero-accent: #f28c38;

  /* Type */
  --display: "Archivo SK", "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "Source Serif SK", "Source Serif 4", Georgia, "Times New Roman", serif;
  --mono: "Plex Mono SK", "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --step--1: 0.8125rem;
  --step-0: 1rem;
  --step-1: 1.25rem;
  --step-2: 1.6rem;
  --step-3: clamp(1.6rem, 1.3rem + 1.1vw, 2.1rem);
  --step-4: clamp(2.2rem, 1.5rem + 3vw, 3.8rem);

  --gutter: clamp(16px, 4vw, 40px);
  --maxw: 1360px;
  --radius: 3px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0c1628; --paper-2: #13213d; --sheet: #101c33;
    --ink: #ede6d3; --ink-2: #cfc6ae; --ink-3: #9c9580;
    --rule: #22335a; --rule-strong: #3e5282;
    --accent: #f28c38; --accent-ink: #1a0e04; --accent-soft: #3a2614;
    --rust: #cdbb8e; --ok: #6cc28d; --err: #e5806f;
    --hero-bg: #08111f; --hero-ink: #ede6d3; --hero-dim: #a9a38b; --hero-line: #22355c; --hero-accent: #f28c38;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0c1628; --paper-2: #13213d; --sheet: #101c33;
    --ink: #ede6d3; --ink-2: #cfc6ae; --ink-3: #9c9580;
    --rule: #22335a; --rule-strong: #3e5282;
    --accent: #f28c38; --accent-ink: #1a0e04; --accent-soft: #3a2614;
    --rust: #cdbb8e; --ok: #6cc28d; --err: #e5806f;
    --hero-bg: #08111f; --hero-ink: #ede6d3; --hero-dim: #a9a38b; --hero-line: #22355c; --hero-accent: #f28c38;
    color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; font-size: clamp(15px, 13px + 0.3vw, 18px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--body); font-size: 1rem; text-rendering: optimizeLegibility; line-height: 1.6; font-optical-sizing: auto; }
img, svg { max-width: 100%; }
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
h1, h2, h3, h4 { font-family: var(--display); font-weight: 700; line-height: 1.1; text-wrap: balance; margin: 0; letter-spacing: -0.01em; }
h2 { font-size: var(--step-3); font-stretch: 88%; }
h3 { font-size: var(--step-1); font-stretch: 95%; }
p { margin: 0; }
.skip { position: absolute; left: -9999px; top: 0; background: var(--ink); color: var(--paper); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; top: 8px; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }
.mono, .label { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.06em; text-transform: uppercase; }
.label { color: var(--ink-3); }
.prose { max-width: 66ch; display: grid; gap: 1.1em; }
.prose h2 { margin-top: 1.2em; font-size: var(--step-2); }
.prose h3 { margin-top: 0.8em; }
.prose ul, .prose ol { margin: 0; padding-left: 1.2em; display: grid; gap: 0.4em; }
.prose blockquote { margin: 0.6em 0; padding: 0.4em 0 0.4em 1.1em; border-left: 3px solid var(--rust); font-style: italic; font-size: var(--step-1); color: var(--ink-2); }
.lead { font-size: var(--step-1); color: var(--ink-2); max-width: 60ch; }

/* ---------- header ---------- */
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--rule); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand svg { width: 34px; height: 34px; flex: none; }
.brand-name { font-family: var(--display); font-weight: 800; font-stretch: 115%; letter-spacing: 0.04em; font-size: 1.02rem; line-height: 1; text-transform: uppercase; }
.brand-name small { display: block; font-family: var(--mono); font-weight: 400; font-stretch: normal; font-size: 0.66rem; letter-spacing: 0.14em; color: var(--ink-3); margin-top: 4px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { color: var(--ink-2); text-decoration: none; font-family: var(--display); font-size: 0.95rem; font-weight: 500; padding: 8px 10px; border-radius: var(--radius); }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); background: var(--paper-2); }
.nav .btn { margin-left: 8px; }
.nav-toggle { display: none; background: none; border: 1px solid var(--rule-strong); color: var(--ink); border-radius: var(--radius); padding: 8px 12px; font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.08em; cursor: pointer; }
@media (max-width: 900px) {
  .nav-toggle { display: inline-block; }
  .nav { position: absolute; left: 0; right: 0; top: 100%; background: var(--paper); border-bottom: 1px solid var(--rule); flex-direction: column; align-items: stretch; padding: 8px var(--gutter) 16px; display: none; }
  .nav.open { display: flex; }
  .nav a { padding: 12px 8px; border-bottom: 1px solid var(--rule); border-radius: 0; }
  .nav .btn { margin: 12px 0 0; text-align: center; border-bottom: 0; }
}

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-family: var(--display); font-weight: 600; font-size: 0.98rem; text-decoration: none; padding: 12px 20px; border-radius: var(--radius); border: 1px solid transparent; cursor: pointer; line-height: 1.2; transition: background .15s, color .15s, border-color .15s; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 85%, var(--ink)); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--rule-strong); }
.btn-ghost:hover { border-color: var(--ink); }
.nav a.btn-primary, .nav a.btn-primary:hover { color: var(--accent-ink); background: var(--accent); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- hero ---------- */
.hero { background: var(--hero-bg); color: var(--hero-ink); position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--hero-line) 1px, transparent 1px), linear-gradient(90deg, var(--hero-line) 1px, transparent 1px); background-size: 48px 48px; opacity: 0.28; pointer-events: none; }
.hero .wrap { position: relative; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 48px); padding-block: clamp(24px, 3.5vw, 48px); align-items: center; }
.hero h1 { font-size: var(--step-4); font-stretch: 78%; font-weight: 800; letter-spacing: -0.02em; line-height: 0.98; }
.hero h1 em { font-style: normal; color: var(--hero-accent); }
.hero .eyebrow { color: var(--hero-dim); margin-bottom: 18px; display: flex; gap: 12px; flex-wrap: wrap; }
.hero .eyebrow span + span::before { content: "/"; margin-right: 12px; opacity: 0.5; }
.hero-lead { color: var(--hero-ink); opacity: 0.88; font-size: 1.12rem; max-width: 58ch; margin-top: 16px; }
.hero .btn-row { margin-top: 22px; }
.hero .btn-ghost { color: var(--hero-ink); border-color: var(--hero-line); }
.hero .btn-ghost:hover { border-color: var(--hero-ink); }
.hero .btn-primary { background: var(--hero-accent); color: #1a0e04; }
.hero .btn-primary:hover { background: #f6a666; }
.detail { border: 1px solid var(--hero-line); background: color-mix(in srgb, var(--hero-bg) 85%, #000); border-radius: var(--radius); }
.detail svg { display: block; width: 100%; height: auto; }
.detail-cap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; border-top: 1px solid var(--hero-line); padding: 10px 14px; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; color: var(--hero-dim); text-transform: uppercase; }
.metrics { position: relative; border-top: 1px solid var(--hero-line); }
.metrics .wrap { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); padding-block: 0; gap: 0; }
.metric { padding: 14px 18px 16px 0; border-right: 1px solid var(--hero-line); }
.metric + .metric { padding-left: 18px; }
.metric:last-child { border-right: 0; }
.metric b { display: block; font-family: var(--display); font-stretch: 80%; font-weight: 800; font-size: clamp(1.8rem, 1.3rem + 2vw, 2.7rem); line-height: 1; font-variant-numeric: tabular-nums; }
.metric b small { font-family: var(--mono); font-size: 0.8rem; font-weight: 500; color: var(--hero-accent); margin-left: 4px; letter-spacing: 0.06em; }
.metric span { display: block; margin-top: 8px; color: var(--hero-dim); font-size: 0.92rem; line-height: 1.35; }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; } .metrics .wrap { grid-template-columns: repeat(2, minmax(0, 1fr)); } .metric:nth-child(2) { border-right: 0; } .metric:nth-child(3) { padding-left: 0; } .metric:nth-child(-n+2) { border-bottom: 1px solid var(--hero-line); } }

.cred-strip { border-bottom: 1px solid var(--rule); background: var(--sheet); }
.cred-strip .wrap { display: flex; flex-wrap: wrap; gap: 8px 22px; padding-block: 14px; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); }
.cred-strip span::before { content: "■"; color: var(--accent); margin-right: 8px; font-size: 0.6rem; vertical-align: 2px; }

/* ---------- sheets (sections) ---------- */
.sheet { border-bottom: 1px solid var(--rule); }
.sheet > .wrap { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; padding-block: clamp(28px, 3.5vw, 48px); }
.sheet-tag { display: flex; gap: 12px; align-items: baseline; }
.sheet-tag .no { font-family: var(--mono); font-weight: 500; font-size: 0.9rem; letter-spacing: 0.06em; }
.sheet-tag .nm { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.sheet-body { display: grid; gap: 22px; min-width: 0; }
.sheet-alt { background: var(--sheet); }


/* about */
.about { display: grid; gap: 24px; min-width: 0; }
.about-flow { max-width: 78ch; }
.about-flow::after { content: ""; display: block; clear: both; }
.about-flow p { margin-bottom: 1.1em; }
.about-flow p:last-child { margin-bottom: 0; }
.about .portrait { float: left; width: 260px; margin: 6px 32px 16px 0; }
.portrait { margin: 0; display: grid; gap: 10px; }
.portrait img { width: 100%; height: auto; aspect-ratio: 823/1000; object-fit: cover; border-radius: var(--radius); filter: grayscale(0.15); background: var(--paper-2); }
.portrait figcaption { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; color: var(--ink-3); text-transform: uppercase; line-height: 1.5; }
.titleblock { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border: 1px solid var(--rule-strong); border-radius: var(--radius); }
.titleblock div { padding: 10px 12px; border-bottom: 1px solid var(--rule); }
.titleblock div:nth-child(odd) { border-right: 1px solid var(--rule); }
.titleblock div:nth-last-child(-n+2) { border-bottom: 0; }
.titleblock dt { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em; color: var(--ink-3); text-transform: uppercase; }
.titleblock dd { margin: 2px 0 0; font-family: var(--display); font-weight: 600; font-size: 0.95rem; line-height: 1.3; }
@media (max-width: 680px) { .about .portrait { width: 42%; margin: 4px 18px 10px 0; } }
@media (max-width: 420px) { .about .portrait { float: none; width: 100%; max-width: 280px; margin: 0 0 16px; } }

/* checklist */
.checks { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); border-top: 1px solid var(--rule); }
.checks li { padding: 14px 16px 14px 32px; border-bottom: 1px solid var(--rule); position: relative; font-size: 1rem; }
.checks li::before { content: ""; position: absolute; left: 6px; top: 22px; width: 12px; height: 2px; background: var(--accent); }

/* services grid */
.svc-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: var(--radius); overflow: hidden; }
.svc { background: var(--sheet); padding: 24px 22px 26px; display: grid; gap: 10px; align-content: start; }
.sheet-alt .svc { background: var(--paper); }
.svc .code { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; color: var(--rust); }
.svc p { color: var(--ink-2); font-size: 0.98rem; }

.terms { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1px solid var(--rule-strong); border-radius: var(--radius); }
.terms div { padding: 16px 18px; }
.terms div + div { border-left: 1px solid var(--rule); }
.terms b { display: block; font-family: var(--display); font-size: 1.05rem; margin-top: 4px; }
@media (max-width: 680px) { .terms { grid-template-columns: 1fr; } .terms div + div { border-left: 0; border-top: 1px solid var(--rule); } }

.callout { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 18px 20px; border-radius: 0 var(--radius) var(--radius) 0; display: grid; gap: 10px; }
.callout p { color: var(--ink); }

/* record timeline */
.record { display: grid; gap: 0; border-top: 1px solid var(--rule); }
.rec { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 20px; padding: 26px 0; border-bottom: 1px solid var(--rule); }
.rec .yrs { font-family: var(--mono); font-size: 0.86rem; letter-spacing: 0.04em; font-variant-numeric: tabular-nums; }
.rec .org { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin-top: 4px; }
.rec h3 { margin-bottom: 8px; }
.rec p { color: var(--ink-2); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; padding: 0; list-style: none; }
.tags li { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.04em; border: 1px solid var(--rule-strong); color: var(--ink-2); padding: 3px 8px; border-radius: 2px; }
@media (max-width: 600px) { .rec { grid-template-columns: 1fr; gap: 8px; } }

/* expertise */
.cols3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 28px; }
.cols3 h3 { font-size: 1rem; font-family: var(--mono); font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 12px; }

/* engagement table */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--rule-strong); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: 0.97rem; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-family: var(--mono); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); background: var(--paper-2); }
tr:last-child td { border-bottom: 0; }
td:first-child { font-family: var(--display); font-weight: 600; white-space: nowrap; }
@media (max-width: 640px) {
  .stack thead { display: none; }
  .stack tr { display: grid; padding: 12px 14px; border-bottom: 1px solid var(--rule); gap: 4px; }
  .stack tr:last-child { border-bottom: 0; }
  .stack td { padding: 0; border: 0; white-space: normal; }
  .stack td[data-k]::before { content: attr(data-k); display: block; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); margin-top: 6px; }
}

/* process steps — a real sequence */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); gap: 0; border-top: 2px solid var(--ink); }
.steps li { padding: 18px 18px 18px 0; display: grid; gap: 6px; align-content: start; }
.steps li + li { padding-left: 18px; border-left: 1px solid var(--rule); }
.steps .n { font-family: var(--mono); font-size: 0.78rem; color: var(--rust); letter-spacing: 0.08em; }
.steps p { color: var(--ink-2); font-size: 0.96rem; }
@media (max-width: 700px) { .steps li + li { padding-left: 0; border-left: 0; border-top: 1px solid var(--rule); } }

/* notes */
.notes { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: 24px; }
.note { display: grid; gap: 10px; padding-top: 16px; border-top: 1px solid var(--rule-strong); align-content: start; }
.note h3 a { color: var(--ink); text-decoration: none; }
.note h3 a:hover { color: var(--accent); }
.note p { color: var(--ink-2); font-size: 0.98rem; }

/* contact */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 48px); align-items: start; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.form { display: grid; gap: 16px; background: var(--sheet); border: 1px solid var(--rule-strong); border-radius: var(--radius); padding: clamp(18px, 3vw, 28px); }
.sheet-alt .form { background: var(--paper); }
.form .row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 560px) { .form .row { grid-template-columns: 1fr; } }
.field { display: grid; gap: 6px; min-width: 0; }
.field label, .field legend { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); }
.field .opt { color: var(--ink-3); text-transform: none; letter-spacing: 0; }
input, select, textarea { font: inherit; font-size: 1rem; color: var(--ink); background: var(--paper); border: 1px solid var(--rule-strong); border-radius: var(--radius); padding: 11px 12px; width: 100%; min-width: 0; }
.sheet-alt .form input, .sheet-alt .form select, .sheet-alt .form textarea { background: var(--sheet); }
textarea { min-height: 140px; resize: vertical; line-height: 1.5; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.chip span { display: inline-block; padding: 8px 12px; border: 1px solid var(--rule-strong); border-radius: 999px; font-family: var(--display); font-size: 0.9rem; font-weight: 500; color: var(--ink-2); background: var(--paper); }
.chip input:checked + span { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.hp { position: absolute !important; left: -9999px !important; height: 1px; width: 1px; overflow: hidden; }
.form-note { font-size: 0.86rem; color: var(--ink-3); }
.form-status { font-size: 0.96rem; padding: 12px 14px; border-radius: var(--radius); border: 1px solid; }
.form-status.ok { color: var(--ok); border-color: var(--ok); background: color-mix(in srgb, var(--ok) 10%, transparent); }
.form-status.err { color: var(--err); border-color: var(--err); background: color-mix(in srgb, var(--err) 8%, transparent); }
.form-status pre { white-space: pre-wrap; font-family: var(--mono); font-size: 0.78rem; color: var(--ink-2); background: var(--paper); border: 1px solid var(--rule); padding: 10px; border-radius: var(--radius); margin: 10px 0 0; max-height: 220px; overflow: auto; }
.reach { display: grid; gap: 0; border-top: 1px solid var(--rule); }
.reach a, .reach div { display: grid; gap: 2px; padding: 16px 0; border-bottom: 1px solid var(--rule); color: var(--ink); text-decoration: none; }
.reach a:hover b { color: var(--accent); }
.reach span { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3); }
.reach b { font-family: var(--display); font-weight: 600; }

/* page header (inner pages) */
.page-head { background: var(--hero-bg); color: var(--hero-ink); position: relative; overflow: hidden; }
.page-head::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--hero-line) 1px, transparent 1px), linear-gradient(90deg, var(--hero-line) 1px, transparent 1px); background-size: 48px 48px; opacity: 0.22; }
.page-head .wrap { position: relative; padding-block: clamp(24px, 3.5vw, 44px); display: grid; gap: 14px; }
.page-head .label { color: var(--hero-dim); }
.page-head h1 { font-size: clamp(1.9rem, 1.3rem + 2.2vw, 3rem); font-stretch: 80%; font-weight: 800; max-width: 28ch; }
.page-head p { color: var(--hero-ink); opacity: 0.85; font-size: var(--step-1); max-width: 60ch; }
.page-head a { color: var(--hero-accent); }

/* FAQ */
.faq-nav { display: flex; flex-wrap: wrap; gap: 8px; }
.faq-nav a { font-family: var(--display); font-size: 0.9rem; padding: 6px 12px; border: 1px solid var(--rule-strong); border-radius: 999px; color: var(--ink-2); text-decoration: none; }
.faq-nav a:hover { border-color: var(--accent); color: var(--accent); }
details { border-bottom: 1px solid var(--rule); }
details summary { cursor: pointer; list-style: none; padding: 18px 36px 18px 0; position: relative; font-family: var(--display); font-weight: 600; font-size: 1.08rem; line-height: 1.35; color: var(--ink); }
details summary:hover { color: var(--accent); }
details[open] summary { color: var(--accent); }
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font-family: var(--mono); font-size: 1.4rem; color: var(--accent); }
details[open] summary::after { content: "−"; }
details .prose { margin: 0 0 22px; padding: 16px 18px; background: var(--paper-2); border-left: 3px solid var(--rust); border-radius: 0 var(--radius) var(--radius) 0; color: var(--ink-2); max-width: 70ch; }
.faq-group { display: grid; gap: 0; }
.faq-group > h2 { font-size: var(--step-2); padding-bottom: 10px; border-bottom: 2px solid var(--ink); margin-top: 28px; }

/* article */
.article-meta { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.06em; color: var(--hero-dim); text-transform: uppercase; }
.byline-card { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 16px; align-items: center; border-top: 1px solid var(--rule); padding-top: 22px; max-width: 66ch; }
.byline-card img { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; }
.byline-card p { font-size: 0.94rem; color: var(--ink-2); }

/* CTA band */
.cta-band { background: var(--accent); color: var(--accent-ink); }
.cta-band .wrap { padding-block: clamp(36px, 5vw, 56px); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; }
.cta-band h2 { font-size: var(--step-2); max-width: 28ch; }
.cta-band p { opacity: 0.9; max-width: 56ch; margin-top: 8px; }
.cta-band .btn { background: var(--accent-ink); color: var(--accent); }
.cta-band .btn-ghost { background: transparent; color: var(--accent-ink); border-color: color-mix(in srgb, var(--accent-ink) 50%, transparent); }

/* footer */
.site-footer { background: var(--hero-bg); color: var(--hero-dim); font-size: 0.92rem; padding-bottom: env(safe-area-inset-bottom, 0px); }
.site-footer .wrap { padding-block: 48px 28px; display: grid; gap: 32px; }
.foot-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); gap: 28px; }
@media (max-width: 800px) { .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .foot-grid > :first-child { grid-column: 1 / -1; } }
.site-footer .brand { color: var(--hero-ink); }
.site-footer .brand-name small { color: var(--hero-dim); }
.site-footer h4 { font-family: var(--mono); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--hero-ink); margin-bottom: 10px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.site-footer a { color: var(--hero-dim); text-decoration: none; }
.site-footer a:hover { color: var(--hero-ink); text-decoration: underline; }
.foot-legal { border-top: 1px solid var(--hero-line); padding-top: 18px; display: grid; gap: 8px; font-size: 0.82rem; }

/* brief builder (scripted, local-only) */
.bb-launch { position: fixed; right: max(16px, env(safe-area-inset-right, 0px)); bottom: calc(16px + env(safe-area-inset-bottom, 0px)); z-index: 60; background: var(--ink); color: var(--paper); border: 0; border-radius: 999px; padding: 12px 18px; font-family: var(--display); font-weight: 600; font-size: 0.92rem; cursor: pointer; box-shadow: 0 6px 24px rgba(0,0,0,.22); display: flex; gap: 8px; align-items: center; }
.bb-launch::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--hero-accent); }
.bb { position: fixed; right: max(16px, env(safe-area-inset-right, 0px)); bottom: calc(76px + env(safe-area-inset-bottom, 0px)); z-index: 61; width: min(380px, calc(100vw - 32px)); max-height: min(560px, calc(100vh - 120px)); background: var(--sheet); border: 1px solid var(--rule-strong); border-radius: 6px; box-shadow: 0 16px 48px rgba(0,0,0,.25); display: flex; flex-direction: column; overflow: hidden; }
.bb-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 14px; background: var(--hero-bg); color: var(--hero-ink); }
.bb-head b { font-family: var(--display); font-size: 0.98rem; }
.bb-head span { display: block; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.1em; color: var(--hero-dim); text-transform: uppercase; }
.bb-head button { background: none; border: 1px solid var(--hero-line); color: var(--hero-ink); border-radius: var(--radius); padding: 4px 10px; cursor: pointer; font-family: var(--mono); }
.bb-log { padding: 14px; overflow-y: auto; display: grid; gap: 10px; align-content: start; flex: 1; }
.bb-msg { padding: 10px 12px; border-radius: 6px; font-size: 0.95rem; line-height: 1.45; max-width: 92%; }
.bb-msg.bot { background: var(--paper-2); color: var(--ink); justify-self: start; }
.bb-msg.me { background: var(--accent); color: var(--accent-ink); justify-self: end; }
.bb-opts { display: flex; flex-wrap: wrap; gap: 6px; }
.bb-opts button { font-family: var(--display); font-size: 0.86rem; padding: 7px 11px; border-radius: 999px; border: 1px solid var(--accent); background: transparent; color: var(--accent); cursor: pointer; }
.bb-opts button:hover { background: var(--accent); color: var(--accent-ink); }
.bb-input { display: flex; gap: 8px; padding: 10px; border-top: 1px solid var(--rule); }
.bb-input textarea { min-height: 44px; height: 44px; padding: 10px; font-size: 0.95rem; }
.bb-input button { flex: none; }
.bb-foot { font-size: 0.72rem; color: var(--ink-3); padding: 0 12px 10px; }

.center { text-align: center; }
.mt-s { margin-top: 8px; }
.err-page { min-height: 50vh; display: grid; place-content: center; gap: 18px; padding-block: 64px; }
[id] { scroll-margin-top: 84px; }
.field label.chip { text-transform: none; letter-spacing: 0; font-family: var(--display); font-size: inherit; color: inherit; }

/* focus areas */
.focus-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
@media (max-width: 900px) { .focus-grid { grid-template-columns: 1fr; } }
.focus { background: var(--sheet); border: 1px solid var(--rule-strong); border-top: 4px solid var(--accent); border-radius: var(--radius); padding: 22px 22px 24px; display: grid; gap: 12px; align-content: start; }
.sheet-alt .focus { background: var(--paper); }
.focus .code { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--rust); }
.focus h3 { font-size: 1.32rem; font-stretch: 88%; }
.focus p { color: var(--ink-2); font-size: 0.98rem; }
.focus .tags { margin-top: 2px; }

/* expandable service lines */
.svc-list { border-top: 2px solid var(--ink); }
.svc-d summary { display: grid; grid-template-columns: 76px minmax(0, 1fr); column-gap: 14px; row-gap: 2px; align-items: baseline; }
.svc-d summary .code { grid-row: span 2; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; color: var(--rust); font-weight: 500; }
.svc-d summary .t { font-size: 1.12rem; }
.svc-d summary .l { font-family: var(--body); font-weight: 400; font-size: 0.96rem; color: var(--ink-3); }
.svc-d[open] summary .l { color: var(--ink-2); }
.svc-d .prose { margin-left: 90px; max-width: none; }
.svc-d .checks { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); border-top: 0; }
.svc-d .checks li { border-bottom: 1px solid var(--rule); font-size: 0.96rem; padding: 10px 12px 10px 28px; }
.svc-d .checks li::before { top: 19px; }
@media (max-width: 600px) { .svc-d summary { grid-template-columns: 1fr; } .svc-d summary .code { grid-row: auto; } .svc-d .prose { margin-left: 0; } }


/* ---------- compact layout additions ---------- */
.svc-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 1000px) { .svc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .svc-grid { grid-template-columns: 1fr; } }
.svc { padding: 18px 20px 20px; gap: 8px; }

/* page head with engagement panel */
.ph-grid { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); align-items: center; column-gap: clamp(20px, 4vw, 56px); }
.ph-main { display: grid; gap: 12px; min-width: 0; }
.ph-aside { border: 1px solid var(--hero-line); background: color-mix(in srgb, var(--hero-bg) 70%, #000); border-radius: var(--radius); padding: 16px 18px; display: grid; gap: 12px; }
.ph-terms { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0; gap: 0; }
.ph-terms div { padding: 0 10px; border-left: 1px solid var(--hero-line); }
.ph-terms div:first-child { padding-left: 0; border-left: 0; }
.ph-terms dt { font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--hero-dim); }
.ph-terms dd { margin: 4px 0 0; font-family: var(--display); font-weight: 600; font-size: 0.92rem; line-height: 1.25; color: var(--hero-ink); }
.ph-note { font-size: 0.9rem !important; color: var(--hero-dim) !important; opacity: 1 !important; }
.ph-links { display: flex; flex-wrap: wrap; gap: 8px; }
.ph-links .btn { padding: 9px 14px; font-size: 0.9rem; }
.ph-links .btn-primary { background: var(--hero-accent); color: #1a0e04; }
.ph-links .btn-ghost { color: var(--hero-ink); border-color: var(--hero-line); }
@media (max-width: 860px) { .ph-grid { grid-template-columns: 1fr; } }

/* on-page navigation */
.toc { position: sticky; top: calc(64px + env(safe-area-inset-top, 0px)); z-index: 40; background: color-mix(in srgb, var(--sheet) 94%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--rule); }
.toc .wrap { display: flex; gap: 6px; align-items: center; overflow-x: auto; padding-block: 8px; scrollbar-width: none; }
.toc .wrap::-webkit-scrollbar { display: none; }
.toc-l { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); white-space: nowrap; margin-right: 6px; }
.toc a { white-space: nowrap; font-family: var(--display); font-size: 0.86rem; font-weight: 500; color: var(--ink-2); text-decoration: none; padding: 5px 11px; border-radius: 999px; border: 1px solid transparent; }
.toc a:hover { border-color: var(--rule-strong); color: var(--ink); }
.toc a.on { background: var(--ink); color: var(--paper); }
[id] { scroll-margin-top: 116px; }

/* drawers */
.sheet.is-drawer > .wrap { padding-block: 0; }
.drawer > summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 64px minmax(0, 1fr) 28px; column-gap: 14px; row-gap: 2px; align-items: baseline; padding: 18px 0; }
.drawer > summary::-webkit-details-marker { display: none; }
.drawer-sum .no { grid-row: span 2; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.06em; color: var(--rust); font-weight: 500; }
.drawer-sum .dt { font-size: clamp(1.25rem, 1.1rem + 0.6vw, 1.6rem); font-stretch: 88%; }
.drawer-sum .tz { grid-column: 2; font-size: 0.98rem; color: var(--ink-3); }
.drawer-sum::after { content: "+"; grid-column: 3; grid-row: 1; justify-self: end; font-family: var(--mono); font-size: 1.5rem; line-height: 1; color: var(--accent); }
.drawer[open] > .drawer-sum::after { content: "−"; }
.drawer > summary:hover .dt { color: var(--accent); }
.drawer[open] > .drawer-sum .tz { display: none; }
.drawer > .sheet-body { padding: 4px 0 28px 78px; }
@media (max-width: 640px) {
  .drawer > summary { grid-template-columns: minmax(0, 1fr) 28px; }
  .drawer-sum .no { grid-row: auto; grid-column: 1; }
  .drawer-sum .dt { grid-column: 1; }
  .drawer-sum .tz { grid-column: 1; }
  .drawer-sum::after { grid-row: 1 / span 2; }
  .drawer > .sheet-body { padding-left: 0; }
}

/* fluid media and touch comfort */
img, svg, video { height: auto; }
.detail svg { width: 100%; height: auto; }
@media (pointer: coarse) { .nav a, .toc a, .btn, .chip span, details summary { min-height: 44px; } .toc a { display: inline-flex; align-items: center; } }
@media (min-width: 1800px) { :root { --maxw: 1520px; } }