/* Layout: drawing-sheet grid — content sits in a 1160px "sheet" with hairline
   gridlines, mono annotation labels like a title block, brass for dimensions. */
:root {
  --paper: #f5f6f3;
  --panel: #ffffff;
  --ink: #16191d;
  --muted: #59606a;
  --line: #d8dbd6;
  --brass: #9c7426;
  --brass-soft: #f1e8d4;
  --on-ink: #f5f6f3;
  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "Public Sans", "Segoe UI", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #111417; --panel: #171b1f; --ink: #eceee9; --muted: #9ba2aa;
    --line: #2a3036; --brass: #d4ab55; --brass-soft: #2a2416; --on-ink: #111417;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #111417; --panel: #171b1f; --ink: #eceee9; --muted: #9ba2aa;
  --line: #2a3036; --brass: #d4ab55; --brass-soft: #2a2416; --on-ink: #111417;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 1.0625rem/1.65 var(--body);
}
img, svg { max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--brass); outline-offset: 3px; }

.wrap { max-width: 1160px; margin: 0 auto; padding-inline: 20px; }

/* Header */
.site-header {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark {
  width: 38px; height: 38px; display: grid; place-items: center;
  border: 1.5px solid var(--ink); font: 800 0.95rem/1 var(--display); letter-spacing: -0.02em;
}
.brand-name { font: 700 1rem/1.15 var(--display); letter-spacing: -0.01em; }
.brand-name small { display: block; font: 500 0.66rem/1.3 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.nav-links { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; align-items: center; }
.nav-links a { text-decoration: none; padding: 8px 12px; font-size: 0.95rem; color: var(--muted); border-radius: 2px; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.nav-links a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--brass); }
.nav-links .btn { color: var(--on-ink); margin-left: 8px; }
.menu-toggle {
  display: none; background: none; border: 1px solid var(--line); color: var(--ink);
  font: 500 0.8rem var(--mono); letter-spacing: 0.1em; text-transform: uppercase; padding: 8px 12px; cursor: pointer;
}
@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px 20px 16px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-links .btn { margin: 12px 0 0; text-align: center; }
}

/* Buttons */
.btn {
  display: inline-block; text-decoration: none; cursor: pointer;
  background: var(--ink); color: var(--on-ink); border: 1.5px solid var(--ink);
  font: 600 0.95rem/1 var(--body); padding: 14px 22px; border-radius: 2px;
  transition: background .15s, color .15s;
}
.btn:hover { background: var(--brass); border-color: var(--brass); color: var(--on-ink); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); border-color: var(--ink); color: var(--on-ink); }

/* Type */
h1, h2, h3 { font-family: var(--display); line-height: 1.05; letter-spacing: -0.025em; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(2.5rem, 6.4vw, 4.9rem); font-weight: 800; }
h2 { font-size: clamp(1.9rem, 3.8vw, 2.9rem); font-weight: 800; }
h3 { font-size: 1.3rem; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0; max-width: 65ch; }
.lede { font-size: 1.2rem; color: var(--muted); }
.label {
  font: 500 0.72rem/1.4 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--brass);
}
.muted { color: var(--muted); }

/* Sections */
section { padding-block: clamp(56px, 8vw, 104px); }
.rule { border-top: 1px solid var(--line); }
.stack { display: grid; gap: 18px; }
.head-row { display: grid; gap: 16px; margin-bottom: 44px; }
@media (min-width: 860px) { .head-row { grid-template-columns: 1fr 1fr; align-items: end; } }

/* Hero */
.hero { padding-block: clamp(40px, 6vw, 80px) clamp(48px, 6vw, 88px); }
.hero-grid { display: grid; gap: 40px; align-items: center; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 1.05fr 1fr; } }
.hero-copy { display: grid; gap: 24px; min-width: 0; }
.hero h1 em { font-style: normal; color: var(--brass); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.facts { display: flex; flex-wrap: wrap; gap: 10px 26px; padding-top: 8px; font: 500 0.8rem/1.5 var(--mono); color: var(--muted); }
.facts span::before { content: "+ "; color: var(--brass); }

/* Drawing sheet */
.sheet { border: 1.5px solid var(--ink); background: var(--panel); min-width: 0; }
.sheet svg { display: block; width: 100%; height: auto; }
.sheet .stroke { stroke: var(--ink); fill: none; }
.sheet .thin { stroke: var(--muted); fill: none; stroke-width: 1; }
.sheet .dim { stroke: var(--brass); fill: none; stroke-width: 1; }
.sheet .dimtxt { fill: var(--brass); font: 500 11px var(--mono); }
.sheet .fillsoft { fill: var(--brass-soft); stroke: var(--ink); }
.sheet .hatch { stroke: var(--line); stroke-width: 1; }
.titleblock { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1.5px solid var(--ink); font: 500 0.68rem/1.35 var(--mono); }
.titleblock div { padding: 8px 10px; border-left: 1px solid var(--line); min-width: 0; }
.titleblock div:first-child { border-left: 0; }
.titleblock b { display: block; color: var(--muted); font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; font-size: 0.6rem; }
@media (max-width: 520px) { .titleblock { grid-template-columns: 1fr 1fr; } .titleblock div:nth-child(3) { border-left: 0; } .titleblock div:nth-child(n+3) { border-top: 1px solid var(--line); } }

/* Services grid */
.grid { display: grid; gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.grid > * { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 30px 26px; display: grid; gap: 12px; align-content: start; min-width: 0; }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
@media (max-width: 400px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }
.grid a.cell { text-decoration: none; transition: background .15s; }
.grid a.cell:hover { background: var(--panel); }
.cell .more { font: 500 0.8rem var(--mono); color: var(--brass); margin-top: 6px; }
.icon { width: 40px; height: 40px; stroke: var(--ink); fill: none; stroke-width: 1.5; }

/* Process */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0; counter-reset: s; }
.steps li { counter-increment: s; padding: 22px 22px 22px 0; border-top: 1.5px solid var(--ink); display: grid; gap: 8px; align-content: start; }
.steps li::before { content: "Stage " counter(s); font: 500 0.72rem var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--brass); }
.steps li p { font-size: 0.97rem; color: var(--muted); }

/* Dark band */
.band { background: var(--ink); color: var(--on-ink); }
.band .label { color: var(--brass); }
.band .muted, .band .lede { color: color-mix(in srgb, var(--on-ink) 70%, transparent); }
.band .btn { background: var(--brass); border-color: var(--brass); color: var(--on-ink); }
.band .btn:hover { background: var(--on-ink); color: var(--ink); border-color: var(--on-ink); }
.band-grid { display: grid; gap: 28px; align-items: center; }
@media (min-width: 860px) { .band-grid { grid-template-columns: 1.4fr 1fr; } .band-grid .actions { justify-content: flex-end; } }

/* Areas */
.area-list { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; }
.area-list li { border: 1px solid var(--line); padding: 6px 12px; font-size: 0.92rem; background: var(--panel); }

/* Page header */
.page-head { padding-block: clamp(48px, 7vw, 92px) clamp(32px, 4vw, 52px); border-bottom: 1px solid var(--line); }
.page-head .stack { gap: 20px; }

/* Service detail */
.svc { display: grid; gap: 28px; padding-block: 48px; border-bottom: 1px solid var(--line); }
@media (min-width: 860px) { .svc { grid-template-columns: 0.9fr 1.1fr; gap: 56px; } }
.svc > * { min-width: 0; }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.ticks li { padding-left: 26px; position: relative; }
.ticks li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 12px; height: 1.5px; background: var(--brass); }
.spec { display: grid; grid-template-columns: auto 1fr; gap: 6px 18px; font-size: 0.95rem; margin-top: 8px; padding-top: 16px; border-top: 1px dashed var(--line); }
.spec dt { font: 500 0.72rem/1.9 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.spec dd { margin: 0; }

/* Projects */
.proj { display: grid; gap: 14px; }
.proj .ph { aspect-ratio: 4 / 3; border: 1px dashed var(--muted); background: var(--panel); display: grid; place-items: center; text-align: center; padding: 16px; max-width: 100%; }
.proj .ph span { font: 500 0.75rem/1.5 var(--mono); color: var(--muted); letter-spacing: 0.06em; }
.note { border: 1px solid var(--brass); background: var(--brass-soft); padding: 14px 18px; font-size: 0.95rem; }

/* Contact */
.contact-grid { display: grid; gap: 48px; }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 0.8fr 1.2fr; } }
.contact-grid > * { min-width: 0; }
.detail { display: grid; gap: 4px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.detail .val { font: 600 1.15rem var(--display); word-break: break-word; }
form { display: grid; gap: 18px; }
.row2 { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.field { display: grid; gap: 6px; }
.field label { font: 500 0.72rem var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
input, select, textarea {
  font: inherit; color: var(--ink); background: var(--panel);
  border: 1px solid var(--line); border-bottom: 1.5px solid var(--ink); padding: 12px 14px; border-radius: 0; width: 100%;
}
textarea { min-height: 140px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--brass); }
.form-msg { padding: 14px 18px; border: 1px solid var(--brass); background: var(--brass-soft); }

/* FAQ */
details { border-bottom: 1px solid var(--line); padding: 18px 0; }
details summary { cursor: pointer; font: 700 1.1rem var(--display); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
details summary::after { content: "+"; color: var(--brass); font-family: var(--mono); }
details[open] summary::after { content: "–"; }
details p { margin-top: 12px; color: var(--muted); }

/* Footer */
.site-footer { border-top: 1.5px solid var(--ink); padding-block: 48px 32px; font-size: 0.93rem; }
.foot-grid { display: grid; gap: 32px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.foot-grid ul { list-style: none; padding: 0; margin: 10px 0 0; display: grid; gap: 6px; }
.foot-grid a { text-decoration: none; color: var(--muted); }
.foot-grid a:hover { color: var(--ink); }
.legal { margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; font: 500 0.72rem/1.6 var(--mono); color: var(--muted); }