/* Lurcott Labs: Blueprint style (engineering drawing on gray paper). */
:root {
  --paper: #E6E7E2;
  --grid: #D9DBD5;
  --sheet: #F6F6F3;
  --ink: #1B232B;
  --ink-2: #3A444E;
  --ink-3: #4A5560;
  --rule: #B4B8B2;
  --rule-2: #8C9298;
  --blue: #1F4E8C;
  --blue-dark: #163A69;
  --blue-pale: #9FB4CF;
  --line-blue: #C9D7EA;
  --white: #FFFFFF;
  --confirm-bg: #FFE9A8;
  --confirm-ink: #5A3D00;
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  --sans: "IBM Plex Sans", system-ui, "Segoe UI", sans-serif;
  --frame: 1.5px solid var(--ink);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
}
a { color: var(--blue); }
a:hover { color: var(--blue-dark); }
img { max-width: 100%; height: auto; }
h1, h2, h3 { line-height: 1.1; margin: 0; }
h1 { font-size: clamp(36px, 6vw, 58px); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.01em; }
h3 { font-size: 20px; }
p { margin: 0; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }

.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 600px) { .wrap { padding: 0 16px; } }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; background: var(--white); padding: 8px 12px; z-index: 10; }

/* Header */
.site-header { border-bottom: 1px solid var(--rule); background: var(--paper); }
.header-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; padding-top: 14px; padding-bottom: 14px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand-mark { width: 40px; height: 40px; border: 2px solid var(--blue); display: flex; align-items: center; justify-content: center; font-family: var(--mono); font-weight: 600; color: var(--blue); }
.brand-name { font-weight: 700; letter-spacing: 0.08em; font-size: 15px; }
.site-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 20px; font-size: 15px; }
.site-nav a { color: var(--ink); text-decoration: none; padding: 10px 0; }
.site-nav a:hover { color: var(--blue); }
.site-nav a[aria-current="page"]:not(.btn) { color: var(--blue); box-shadow: inset 0 -2px 0 var(--blue); }
.site-nav .btn { padding: 10px 16px; }
@media (max-width: 760px) {
  .site-nav { width: 100%; gap: 0 16px; }
  .site-nav .btn { margin-left: auto; }
}

/* Buttons */
.btn { display: inline-block; text-decoration: none; font-weight: 600; font-size: 16px; padding: 15px 24px; border: 1.5px solid var(--ink); color: var(--ink); background: transparent; font-family: var(--sans); cursor: pointer; line-height: 1.2; }
.btn:hover { background: var(--sheet); color: var(--ink); }
.btn-primary, .site-nav a.btn-primary { background: var(--blue); border-color: var(--blue); color: var(--white); }
.btn-primary:hover, .site-nav a.btn-primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: var(--white); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* Sections */
.section { padding: 72px 0 32px; }
.section-tight { padding: 32px 0; }
.label { font-family: var(--mono); font-size: 13px; color: var(--ink-3); letter-spacing: 0.06em; text-transform: uppercase; }
.section-head { display: flex; flex-direction: column; gap: 8px; margin-bottom: 32px; max-width: 820px; }
.section-head p { color: var(--ink-2); font-size: 18px; }
.lede { font-size: 20px; color: var(--ink-2); max-width: 680px; }

.hero { padding: 72px 0 56px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 48px; align-items: start; }
.hero-text { display: flex; flex-direction: column; gap: 24px; }
.ticks { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 24px; font-family: var(--mono); font-size: 14px; color: var(--ink-2); }
.ticks li::before { content: "✓ "; color: var(--blue); }
.hero-grid .photo { min-height: 340px; }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; } }
.page-hero { padding: 56px 0 24px; }
.page-hero .wrap { display: flex; flex-direction: column; gap: 16px; }

/* Operating envelope strip */
.envelope { background: var(--ink); color: var(--paper); border-top: var(--frame); border-bottom: var(--frame); }
.envelope dl { margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.envelope div { padding: 18px 16px; border-right: 1px solid var(--ink-2); }
.envelope div:last-child { border-right: 0; }
.envelope dt { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; color: var(--blue-pale); }
.envelope dd { margin: 6px 0 0; font-size: 20px; font-weight: 600; line-height: 1.25; }
.envelope .confirm { font-size: 13px; }

/* Cards and sheets */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }
@media (max-width: 420px) { .grid-2 { grid-template-columns: 1fr; } }
.card { background: var(--sheet); border: var(--frame); padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.card-dark { background: var(--ink); color: var(--paper); }
.card-dark .tag { color: var(--blue-pale); }
.card-dark ul { color: var(--paper); }
.card-dark a { color: var(--blue-pale); }
.tag { font-family: var(--mono); font-size: 13px; color: var(--blue); font-weight: 600; letter-spacing: 0.04em; }
.card ul, .bullets { margin: 0; padding-left: 18px; font-size: 16px; line-height: 1.7; color: var(--ink-2); }
.card .price { font-size: 26px; font-weight: 700; }
.card .more { margin-top: auto; font-weight: 600; }

.sheet { background: var(--sheet); border: var(--frame); }
.sheet-shadow { box-shadow: 8px 8px 0 var(--blue); }

/* Numbered process */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); background: var(--sheet); border: var(--frame); }
.steps li { padding: 24px; border-right: 1px solid var(--rule); border-bottom: 1px solid var(--rule); display: flex; flex-direction: column; gap: 8px; }
.steps strong { font-size: 18px; }
.steps span:last-child { color: var(--ink-2); font-size: 15px; }

/* Spec table */
.spec { margin: 0; border: var(--frame); background: var(--sheet); }
.spec div { display: grid; grid-template-columns: minmax(96px, 30%) 1fr; border-bottom: 1px solid var(--rule); }
.spec div:last-child { border-bottom: 0; }
.spec dt { font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; color: var(--ink-3); padding: 14px 16px; border-right: 1px solid var(--rule); }
.spec dd { margin: 0; padding: 12px 16px; }
@media (max-width: 520px) {
  .spec div { grid-template-columns: 1fr; }
  .spec dt { border-right: 0; padding-bottom: 0; }
}

/* Photo placeholder */
.photo { border: 1.5px dashed var(--rule-2); background: repeating-linear-gradient(45deg, transparent 0 10px, rgba(31, 78, 140, 0.05) 10px 20px), var(--sheet); min-height: 220px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; padding: 16px; text-align: center; font-family: var(--mono); font-size: 13px; color: var(--ink-2); }
.photo strong { color: var(--ink); letter-spacing: 0.08em; }
.photo-sm { min-height: 140px; }

/* Case study */
.case { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); border: var(--frame); background: var(--sheet); }
.case .photo { border: 0; border-right: 1px solid var(--rule); min-height: 100%; }
.case-body { padding: 24px; display: flex; flex-direction: column; gap: 12px; }

.case-img { display: block; width: 100%; height: 100%; max-height: 640px; object-fit: contain; background: var(--white); border-right: 1px solid var(--rule); }
.case-media { display: flex; flex-direction: column; gap: 1px; background: var(--rule); border-right: 1px solid var(--rule); }
.case-media img { display: block; width: 100%; height: auto; background: var(--white); }
@media (max-width: 760px) {
  .case-media { border-right: 0; border-bottom: 1px solid var(--rule); }
  .case-img { border-right: 0; border-bottom: 1px solid var(--rule); max-height: 480px; }
  .case { grid-template-columns: 1fr; }
  .case .photo { border-right: 0; border-bottom: 1px solid var(--rule); min-height: 200px; }
}

/* Photo gallery */
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-top: 32px; }
.gallery figure { margin: 0; background: var(--sheet); border: var(--frame); }
.gallery img { display: block; width: 100%; height: auto; aspect-ratio: 350 / 285; object-fit: cover; border-bottom: 1px solid var(--rule); }
.gallery figcaption { padding: 8px 10px; font-family: var(--mono); font-size: 12px; color: var(--ink-2); }

/* Call to action band */
.cta { margin: 56px 0 72px; padding: 32px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }
.cta h2 { font-size: clamp(24px, 3.4vw, 32px); }
.cta p { color: var(--ink-2); margin-top: 8px; }

.quote-line { font-size: clamp(20px, 2.6vw, 26px); font-weight: 600; max-width: 900px; }

/* Placeholders Steve must confirm */
mark.confirm { background: var(--confirm-bg); color: var(--confirm-ink); font-family: var(--mono); font-size: 0.85em; font-weight: 500; padding: 0 4px; border: 1px dashed var(--confirm-ink); }

/* Form */
.form { padding: 24px; display: flex; flex-direction: column; gap: 18px; }
.form fieldset { border: 0; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.form legend { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; color: var(--ink-3); margin-bottom: 10px; padding: 0; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 600; }
.form .wide { grid-column: 1 / -1; }
.form input, .form select, .form textarea { font: inherit; font-size: 16px; font-weight: 400; padding: 11px 12px; border: 1px solid var(--rule-2); background: var(--white); color: var(--ink); border-radius: 0; width: 100%; }
.form textarea { resize: vertical; min-height: 110px; }
.form .hint { font-weight: 400; color: var(--ink-3); font-size: 13px; }
.form .choices { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.form .choices label { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; font-size: 16px; }
.form .choices input { width: auto; }
.form-status { font-family: var(--mono); font-size: 14px; padding: 12px; border: 1px dashed var(--ink-2); }
.form-status[hidden] { display: none; }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: 40px; align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.stack { display: flex; flex-direction: column; gap: 16px; }

/* Footer title block */
.site-footer { border-top: var(--frame); background: var(--sheet); padding: 32px 0; margin-top: 40px; }
.title-block { margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); border: var(--frame); font-size: 14px; }
.title-block div { padding: 12px; border-right: 1px solid var(--rule-2); border-bottom: 1px solid var(--rule-2); }
.title-block dt { font-family: var(--mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.06em; }
.title-block dd { margin: 4px 0 0; }
.footer-note { margin-top: 12px; font-family: var(--mono); font-size: 12px; color: var(--ink-3); }