/* ==========================================================================
   Site stylesheet. One file, no build step.
   Brand name lives in assets/site.js (SITE_BRAND). Colors are tokens on :root.
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
  color-scheme: light dark;

  /* Surfaces and text (light) */
  --paper: #f7f5f0;
  --paper-2: #edeae2;
  --paper-3: #e4e0d6;
  --ink: #1c1f1d;
  --ink-2: #4a4f4c;
  --line: #d3cfc5;
  --line-strong: #a9a59a;

  /* One accent: field green */
  --accent: #1f6f4a;
  --accent-hover: #175a3b;
  --accent-ink: #ffffff;
  --accent-soft: #e2eee7;

  /* Placeholder highlight (things Mark must fill) */
  --ph-bg: #fff4d6;
  --ph-line: #c99a2e;
  --ph-ink: #5b4300;

  /* Type */
  --font-serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, "Times New Roman", serif;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;

  --text-base: 1.0625rem;   /* 17px */
  --lh: 1.6;

  /* Layout */
  --measure: 66ch;
  --wrap: 1120px;
  --gutter: clamp(1rem, 4vw, 2rem);
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --radius: 4px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #141715;
    --paper-2: #1b1f1c;
    --paper-3: #232825;
    --ink: #e8e6df;
    --ink-2: #b3b1a8;
    --line: #333935;
    --line-strong: #555c57;

    --accent: #5fc48f;
    --accent-hover: #7bd3a3;
    --accent-ink: #0f1411;
    --accent-soft: #1d2d24;

    --ph-bg: #3a2f10;
    --ph-line: #c99a2e;
    --ph-ink: #ffe7a8;
  }
}

/* ---------- Reset-ish ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--lh);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
svg { fill: none; }

h1, h2, h3, h4 { margin: 0 0 var(--space-2); line-height: 1.15; font-weight: 600; }
h1, h2 { font-family: var(--font-serif); font-weight: 500; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.125rem, 1.2rem + 3.6vw, 3.5rem); }
h2 { font-size: clamp(1.625rem, 1.1rem + 2vw, 2.25rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.0625rem; }
p, ul, ol, dl { margin: 0 0 var(--space-2); }
p:last-child { margin-bottom: 0; }
p, li, dd { max-width: var(--measure); }
small, .small { font-size: 0.9rem; }
strong { font-weight: 600; }

a { color: var(--accent); text-decoration: underline; text-underline-offset: 0.15em; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-hover); text-decoration-thickness: 2px; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}
:focus:not(:focus-visible) { outline: none; }

code, kbd { font-family: var(--font-mono); font-size: 0.92em; background: var(--paper-2); padding: 0.05em 0.35em; border-radius: 3px; }

hr { border: 0; border-top: 1px solid var(--line); margin: var(--space-4) 0; }

/* ---------- Utilities ---------- */
.wrap { width: min(100% - 2 * var(--gutter), var(--wrap)); margin-inline: auto; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.muted { color: var(--ink-2); }
.lede { font-size: 1.2rem; line-height: 1.5; color: var(--ink-2); max-width: 60ch; }
.eyebrow {
  display: block; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent); margin-bottom: var(--space-1);
}
.measure { max-width: var(--measure); }

/* Placeholder token for copy Mark must supply */
.ph {
  font-family: var(--font-mono); font-size: 0.85em; background: var(--ph-bg); color: var(--ph-ink);
  border: 1px dashed var(--ph-line); border-radius: 3px; padding: 0.05em 0.4em; white-space: nowrap;
}

/* Skip link */
.skip-link {
  position: absolute; left: var(--gutter); top: -100px; z-index: 100;
  background: var(--accent); color: var(--accent-ink); padding: 0.6rem 1rem; border-radius: var(--radius);
  text-decoration: none; font-weight: 600;
}
.skip-link:focus { top: var(--space-2); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; padding: 0.7rem 1.2rem; border-radius: var(--radius);
  font-weight: 600; text-decoration: none; line-height: 1.2; border: 1.5px solid transparent;
  cursor: pointer; font-family: inherit; font-size: 1rem;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: var(--accent-ink); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-secondary:hover { border-color: var(--ink); color: var(--ink); }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }

/* ---------- Header / nav ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: relative; z-index: 20;
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-2);
  min-height: 4.25rem;
}
.wordmark {
  display: inline-flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--ink);
  font-family: var(--font-serif); font-size: 1.35rem; font-weight: 600; letter-spacing: -0.01em;
}
.wordmark:hover { color: var(--ink); text-decoration: none; }
.wordmark svg { width: 30px; height: 30px; color: var(--accent); }
.wordmark .brand-name { white-space: nowrap; }

.nav-toggle {
  display: none; background: none; border: 1.5px solid var(--line-strong); border-radius: var(--radius);
  padding: 0.45rem 0.6rem; color: var(--ink); cursor: pointer; font: inherit; font-weight: 600;
  align-items: center; gap: 0.5rem;
}
.nav-toggle svg { width: 20px; height: 20px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 0.25rem; }
.site-nav a {
  display: block; padding: 0.5rem 0.75rem; color: var(--ink); text-decoration: none; font-weight: 500;
  border-radius: var(--radius); border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--accent); }
.site-nav a[aria-current="page"] { color: var(--accent); border-bottom-color: var(--accent); border-radius: 0; }
.site-nav .nav-cta a { background: var(--accent); color: var(--accent-ink); margin-left: 0.5rem; }
.site-nav .nav-cta a:hover { background: var(--accent-hover); }
.site-nav .nav-cta a[aria-current="page"] { border-bottom-color: transparent; border-radius: var(--radius); }

@media (max-width: 839px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: var(--paper); border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px -12px rgba(0,0,0,0.25);
  }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; padding: var(--space-2) var(--gutter) var(--space-3); gap: 0; }
  .site-nav a { padding: 0.8rem 0.5rem; border-bottom: 1px solid var(--line); border-radius: 0; }
  .site-nav a[aria-current="page"] { border-bottom-color: var(--line); box-shadow: inset 3px 0 0 var(--accent); padding-left: 0.9rem; }
  .site-nav .nav-cta a { margin: var(--space-2) 0 0; border-bottom: 0; text-align: center; border-radius: var(--radius); }
}

/* ---------- Sections ---------- */
main { display: block; }
.section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.section + .section { border-top: 1px solid var(--line); }
.section-tint { background: var(--paper-2); }
.section-head { margin-bottom: var(--space-4); max-width: 72ch; }
.section-head h2::before {
  content: ""; display: block; width: 2.5rem; height: 3px; background: var(--accent); margin-bottom: var(--space-2);
}
.section-head p { font-size: 1.1rem; color: var(--ink-2); }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(3rem, 8vw, 6rem); }
.hero-grid { display: grid; gap: var(--space-4); grid-template-columns: 1fr; align-items: start; }
@media (min-width: 900px) { .hero-grid { grid-template-columns: 1.3fr 1fr; gap: var(--space-5); } }
.hero h1 { max-width: 16ch; }
.hero .lede { margin-bottom: var(--space-3); }

/* Spec sheet block (used in hero and elsewhere) */
.spec {
  border: 1.5px solid var(--ink); border-radius: var(--radius); background: var(--paper);
  padding: var(--space-3);
}
.spec h2, .spec h3 {
  font-family: var(--font-sans); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-2); margin-bottom: var(--space-2); font-weight: 600;
}
.spec ul { list-style: none; margin: 0; padding: 0; }
.spec li {
  display: grid; grid-template-columns: 22px 1fr; gap: 0.7rem; align-items: start;
  padding: 0.65rem 0; border-top: 1px solid var(--line); max-width: none;
}
.spec li:first-child { border-top: 0; padding-top: 0; }
.spec li svg { width: 22px; height: 22px; color: var(--accent); margin-top: 0.1rem; }
.spec li strong { display: block; }
.spec li span { color: var(--ink-2); font-size: 0.95rem; }

/* ---------- Icon list (line icons) ---------- */
.icon-grid { display: grid; gap: var(--space-3) var(--space-4); grid-template-columns: 1fr; list-style: none; margin: 0; padding: 0; }
@media (min-width: 640px) { .icon-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .icon-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; } }
.icon-grid li { max-width: none; display: grid; grid-template-columns: 40px 1fr; gap: var(--space-2); align-items: start; }
.icon-grid svg { width: 40px; height: 40px; color: var(--accent); }
.icon-grid h3 { font-size: 1.05rem; margin-bottom: 0.25rem; }
.icon-grid p { color: var(--ink-2); font-size: 0.97rem; }

/* ---------- Service rows ---------- */
.svc-list { list-style: none; margin: 0; padding: 0; }
.svc {
  display: grid; gap: var(--space-2) var(--space-4); padding-block: var(--space-4);
  border-top: 1px solid var(--line-strong);
  grid-template-columns: 1fr;
}
.svc:last-child { border-bottom: 1px solid var(--line-strong); }
/* Two columns: number | text, with the fact box under the text. */
@media (min-width: 700px) {
  .svc { grid-template-columns: 3.5rem minmax(0, 1fr); }
  .svc-aside { grid-column: 2; }
}
/* No three-column layout: the list sits in a ~40rem reading column, too narrow for three. */
.svc-num { font-family: var(--font-serif); font-size: 2.5rem; line-height: 1; color: var(--accent); }
.svc-body h3 { font-family: var(--font-serif); font-size: 1.6rem; font-weight: 500; }
.svc-body .who { color: var(--ink-2); font-size: 0.97rem; }
.svc-aside dl { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper-2); padding: var(--space-2) var(--space-3); }
.svc-aside dt { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); font-weight: 600; margin-top: var(--space-2); }
.svc-aside dt:first-child { margin-top: 0; }
.svc-aside dd { margin: 0.15rem 0 0; }

/* ---------- Definition table (used in services detail) ---------- */
.facts { display: grid; gap: var(--space-2); grid-template-columns: 1fr; margin: var(--space-3) 0; }
@media (min-width: 720px) { .facts { grid-template-columns: repeat(3, 1fr); } }
.facts > div { border-top: 3px solid var(--accent); padding-top: var(--space-1); background: var(--paper-2); padding: var(--space-2); border-radius: 0 0 var(--radius) var(--radius); }
.facts h4 { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 0.4rem; }
.facts ul { margin: 0; padding-left: 1.1rem; }
.facts li { font-size: 0.97rem; }

/* ---------- Two-column prose ---------- */
.cols-2 { display: grid; gap: var(--space-4); grid-template-columns: 1fr; }
@media (min-width: 820px) { .cols-2 { grid-template-columns: 1fr 1fr; } }
.cols-2 > * { min-width: 0; }

/* ---------- Timeline ---------- */
.timeline { list-style: none; margin: 0; padding: 0; counter-reset: step; }
.timeline li {
  position: relative; padding: 0 0 var(--space-3) 3.25rem; max-width: 70ch; counter-increment: step;
}
.timeline li::before {
  content: counter(step); position: absolute; left: 0; top: 0;
  width: 2.25rem; height: 2.25rem; border-radius: 50%; display: grid; place-items: center;
  border: 1.5px solid var(--accent); color: var(--accent); font-weight: 600; background: var(--paper);
  font-family: var(--font-serif); font-size: 1.1rem;
}
.timeline li::after {
  content: ""; position: absolute; left: calc(1.125rem - 1px); top: 2.25rem; bottom: 0; width: 2px; background: var(--line);
}
.timeline li:last-child::after { display: none; }
.timeline h3 { font-size: 1.1rem; margin-bottom: 0.25rem; padding-top: 0.35rem; }
.timeline p { color: var(--ink-2); }
.timeline .when { display: inline-block; font-size: 0.8rem; color: var(--ink-2); font-family: var(--font-mono); margin-left: 0.5rem; }

/* ---------- Fences (never-without-approval list) ---------- */
.fences { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-2); grid-template-columns: 1fr; }
@media (min-width: 720px) { .fences { grid-template-columns: 1fr 1fr; } }
.fences li {
  max-width: none; display: grid; grid-template-columns: 28px 1fr; gap: 0.8rem; align-items: start;
  border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: var(--radius);
  padding: var(--space-2); background: var(--paper);
}
.fences svg { width: 28px; height: 28px; color: var(--accent); }
.fences strong { display: block; }
.fences span { color: var(--ink-2); font-size: 0.95rem; }

/* ---------- Callout ---------- */
.callout {
  border: 1px solid var(--line-strong); border-radius: var(--radius); padding: var(--space-3);
  background: var(--paper-2); max-width: 76ch;
}
.callout h3 { font-size: 1.05rem; }
.callout.plain { background: transparent; }

/* ---------- Diagram ---------- */
.diagram { margin: var(--space-3) 0; }
.diagram svg { width: 100%; height: auto; color: var(--ink); }
.diagram .d-accent { color: var(--accent); }
.diagram-wide { display: none; }
.diagram-tall { display: block; max-width: 420px; }
@media (min-width: 720px) { .diagram-wide { display: block; } .diagram-tall { display: none; } }
.diagram-caption { font-size: 0.9rem; color: var(--ink-2); max-width: 70ch; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; margin: var(--space-3) 0; }
table { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 0.97rem; }
th, td { text-align: left; padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); font-weight: 600; }
tbody th { font-size: 1rem; letter-spacing: 0; text-transform: none; color: var(--ink); font-weight: 600; }

/* ---------- Pricing ---------- */
.price-list { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-3); grid-template-columns: 1fr; }
@media (min-width: 760px) { .price-list { grid-template-columns: repeat(2, 1fr); } }
.price {
  max-width: none; border: 1.5px solid var(--line-strong); border-radius: var(--radius); padding: var(--space-3);
  background: var(--paper); display: flex; flex-direction: column; gap: var(--space-2);
}
.price h3 { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 500; margin: 0; }
.price .from { font-size: 0.85rem; color: var(--ink-2); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600; }
.price .amount { font-size: 1.6rem; font-family: var(--font-serif); }
.price ul { padding-left: 1.1rem; margin: 0; flex: 1; }
.price li { font-size: 0.97rem; margin-bottom: 0.35rem; }
.price .btn { align-self: flex-start; }

/* ---------- Forms ---------- */
form { max-width: 44rem; }
.field { margin-bottom: var(--space-3); }
label { display: block; font-weight: 600; margin-bottom: 0.35rem; }
label .req { color: var(--accent); }
.hint { display: block; font-size: 0.9rem; color: var(--ink-2); margin-bottom: 0.4rem; font-weight: 400; }
input[type="text"], input[type="email"], select, textarea {
  width: 100%; font: inherit; color: var(--ink); background: var(--paper);
  border: 1.5px solid var(--line-strong); border-radius: var(--radius); padding: 0.65rem 0.8rem;
}
input:focus-visible, select:focus-visible, textarea:focus-visible { outline-offset: 1px; border-color: var(--accent); }
textarea { min-height: 9rem; resize: vertical; }
.field-row { display: grid; gap: var(--space-2); grid-template-columns: 1fr; }
@media (min-width: 640px) { .field-row { grid-template-columns: 1fr 1fr; } }
.hp { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--ink); color: var(--paper); padding-block: clamp(2.5rem, 6vw, 4rem); }
.cta-band h2 { color: var(--paper); }
.cta-band p { color: var(--paper-3); }
.cta-band .btn-primary { background: var(--accent); }
.cta-band .btn-secondary { color: var(--paper); border-color: var(--paper-3); }
.cta-band .btn-secondary:hover { border-color: var(--paper); color: var(--paper); }
.cta-band a:not(.btn) { color: var(--paper); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .cta-band { background: var(--paper-2); color: var(--ink); }
  :root:not([data-theme="light"]) .cta-band h2 { color: var(--ink); }
  :root:not([data-theme="light"]) .cta-band p { color: var(--ink-2); }
  :root:not([data-theme="light"]) .cta-band .btn-secondary { color: var(--ink); border-color: var(--line-strong); }
  :root:not([data-theme="light"]) .cta-band a:not(.btn) { color: var(--accent); }
}

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding-block: var(--space-4); font-size: 0.93rem; color: var(--ink-2); }
.site-footer .wrap { display: grid; gap: var(--space-3); grid-template-columns: 1fr; }
@media (min-width: 720px) { .site-footer .wrap { grid-template-columns: 1.4fr 1fr 1fr; } }
.site-footer h2 { font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; font-family: var(--font-sans); font-weight: 600; color: var(--ink-2); margin-bottom: 0.5rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 0.3rem; }
.site-footer a { color: var(--ink); }
.site-footer .wordmark { font-size: 1.15rem; margin-bottom: 0.5rem; }
.site-footer .legal { grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: var(--space-2); font-size: 0.85rem; }

/* ---------- Page header (inner pages) ---------- */
.page-head { padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 4vw, 3rem); border-bottom: 1px solid var(--line); }
.page-head h1 { max-width: 20ch; }
.page-head .lede { margin-top: var(--space-2); }

/* ---------- Print ---------- */
@media print {
  :root { --paper: #fff; --ink: #000; --ink-2: #333; --accent: #000; --accent-ink: #fff; }
  .site-header, .site-footer, .nav-toggle, .skip-link, .cta-band, .btn { display: none !important; }
  .site-nav { display: none !important; }
  body { font-size: 11pt; }
  a { color: #000; text-decoration: none; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.85em; }
  .section { padding-block: 1.5rem; break-inside: avoid; }
  .ph { border: 1px dashed #000; background: none; }
}