/* Blackridge Roofing & Exteriors — fictional portfolio demonstration */
:root {
  --paper: #f1ede4;
  --paper-deep: #e4ded1;
  --ink: #181a18;
  --ink-soft: #363934;
  --stone: #a79e8d;
  --clay: #9a6748;
  --clay-dark: #744832;
  --moss: #5b6254;
  --line: rgba(24, 26, 24, 0.24);
  --white-line: rgba(255, 255, 255, 0.28);
  --serif: Iowan Old Style, Baskerville, "Times New Roman", Times, serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --gutter: clamp(1.25rem, 4vw, 4.5rem);
  --content: 1440px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img { display: block; width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
::selection { color: var(--paper); background: var(--clay-dark); }

.skip-link {
  position: fixed;
  z-index: 1000;
  left: 1rem;
  top: -8rem;
  padding: .75rem 1rem;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--ink);
  transition: top .2s;
}
.skip-link:focus { top: 1rem; }

.shell { width: min(100%, var(--content)); margin-inline: auto; padding-inline: var(--gutter); }
.narrow { width: min(100% - (2 * var(--gutter)), 880px); margin-inline: auto; }
.eyebrow {
  margin: 0 0 1rem;
  font-size: .69rem;
  font-weight: 700;
  letter-spacing: .17em;
  line-height: 1.3;
  text-transform: uppercase;
}
.eyebrow.light { color: rgba(255,255,255,.75); }
.display {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(3rem, 7vw, 7.2rem);
  line-height: .92;
  letter-spacing: -.045em;
}
.section-title {
  margin: 0;
  max-width: 16ch;
  font-family: var(--serif);
  font-size: clamp(2.35rem, 5vw, 5.25rem);
  font-weight: 400;
  letter-spacing: -.04em;
  line-height: .98;
}
.lede {
  max-width: 39rem;
  margin: 1.25rem 0 0;
  color: var(--ink-soft);
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.2vw, 1.7rem);
  line-height: 1.35;
}
.meta-label {
  display: block;
  margin-bottom: .42rem;
  color: var(--stone);
  font-size: .63rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.text-link,
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  padding: 0 0 .32rem;
  border-bottom: 1px solid currentColor;
  font-size: .73rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-decoration: none;
  text-transform: uppercase;
}
.text-link::after,
.arrow-link::after { content: "↗"; font-size: .95rem; transition: transform .2s var(--ease); }
.text-link:hover::after, .text-link:focus-visible::after,
.arrow-link:hover::after, .arrow-link:focus-visible::after { transform: translate(3px, -3px); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.25rem;
  padding: .85rem 1.3rem;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  line-height: 1.2;
  text-decoration: none;
  text-transform: uppercase;
  transition: color .25s, background .25s;
}
.button:hover, .button:focus-visible { background: transparent; color: var(--ink); }
.button.light { border-color: var(--paper); background: var(--paper); color: var(--ink); }
.button.light:hover, .button.light:focus-visible { background: transparent; color: var(--paper); }
.button.ghost { background: transparent; color: var(--ink); }
.button.ghost:hover, .button.ghost:focus-visible { background: var(--ink); color: var(--paper); }
.button.outline-light { border-color: var(--paper); }

/* Header */
.site-header {
  position: relative;
  z-index: 100;
  width: 100%;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.site-header.hero-header {
  position: absolute;
  color: #fff;
  border-color: var(--white-line);
  background: linear-gradient(to bottom, rgba(11,13,11,.52), transparent);
}
.header-inner {
  display: grid;
  grid-template-columns: 260px 1fr auto;
  align-items: stretch;
  min-height: 86px;
  padding-inline: var(--gutter);
}
.brand {
  display: flex;
  align-items: center;
  gap: .82rem;
  width: fit-content;
  color: inherit;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  place-content: center;
  width: 39px;
  height: 39px;
  border: 1px solid currentColor;
  font-family: var(--serif);
  font-size: .83rem;
  letter-spacing: -.04em;
}
.brand-name { display: flex; flex-direction: column; font-size: .9rem; font-weight: 750; letter-spacing: .04em; line-height: 1.05; text-transform: uppercase; }
.brand-name span:last-child { margin-top: .28rem; font-size: .56rem; font-weight: 600; letter-spacing: .2em; opacity: .72; }
.site-nav { display: flex; align-items: stretch; justify-content: flex-end; }
.site-nav a {
  display: flex;
  align-items: center;
  position: relative;
  padding: 0 .8rem;
  color: inherit;
  font-size: .66rem;
  font-weight: 700;
  letter-spacing: .105em;
  text-decoration: none;
  text-transform: uppercase;
}
.site-nav a::after { content: ""; position: absolute; left: .8rem; right: .8rem; bottom: 25px; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform .25s var(--ease); }
.site-nav a:hover::after, .site-nav a:focus-visible::after, .site-nav a[aria-current="page"]::after { transform: scaleX(1); }
.header-action { align-self: center; margin-left: 1.15rem; white-space: nowrap; }
.hero-header .header-action { border-color: #fff; background: #fff; color: var(--ink); }
.hero-header .header-action:hover, .hero-header .header-action:focus-visible { background: transparent; color: #fff; }
.menu-toggle {
  display: none;
  align-self: center;
  justify-self: end;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
}
.menu-toggle span, .menu-toggle::before, .menu-toggle::after { content: ""; display: block; width: 24px; height: 1px; margin: 6px auto; background: currentColor; transition: transform .25s, opacity .25s; }
.menu-toggle[aria-expanded="true"] span { opacity: 0; }
.menu-toggle[aria-expanded="true"]::before { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"]::after { transform: translateY(-7px) rotate(-45deg); }

/* Home hero */
.hero {
  position: relative;
  display: grid;
  align-items: end;
  min-height: 94svh;
  color: #fff;
  background: #23251f;
  overflow: hidden;
}
.hero::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, rgba(11,13,11,.72) 0%, rgba(11,13,11,.2) 56%, rgba(11,13,11,.16) 100%), linear-gradient(0deg, rgba(11,13,11,.58), transparent 45%); }
.hero-image { position: absolute; inset: 0; height: 100%; object-fit: cover; animation: heroIn 1.6s var(--ease) both; }
@keyframes heroIn { from { opacity: .2; transform: scale(1.035); } to { opacity: 1; transform: scale(1); } }
.hero-content { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 2rem; width: 100%; padding: clamp(8rem, 18vh, 12rem) var(--gutter) clamp(2.5rem, 6vh, 5rem); }
.hero-copy { max-width: 950px; }
.hero .display { max-width: 9ch; }
.hero-side { max-width: 19rem; padding: 1.35rem 0 0 1.35rem; border-left: 1px solid rgba(255,255,255,.55); }
.hero-side p { margin: 0 0 1.25rem; color: rgba(255,255,255,.82); font-size: .88rem; }
.hero-index { position: absolute; z-index: 2; right: var(--gutter); top: 128px; display: flex; gap: .6rem; align-items: center; font-size: .62rem; letter-spacing: .14em; text-transform: uppercase; }
.hero-index::before { content: ""; width: 56px; height: 1px; background: rgba(255,255,255,.58); }

/* Shared sections */
.statement { border-bottom: 1px solid var(--line); }
.statement-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(3rem, 9vw, 9rem); padding-block: clamp(5rem, 11vw, 10rem); }
.statement-number { font-family: var(--serif); font-size: clamp(3.5rem, 7vw, 7.8rem); line-height: .8; color: var(--clay); }
.statement-side { display: flex; flex-direction: column; justify-content: space-between; padding-top: .4rem; }
.statement-side p { max-width: 31rem; margin: 0; font-size: 1.02rem; }
.statement-side .text-link { margin-top: 2.5rem; align-self: flex-start; }
.section-head { display: grid; grid-template-columns: .9fr 1.1fr; gap: 3rem; align-items: start; padding: clamp(5rem, 10vw, 9rem) var(--gutter) clamp(3rem, 6vw, 5rem); border-bottom: 1px solid var(--line); }
.section-head .section-title { max-width: 12ch; }
.section-intro { max-width: 39rem; }
.section-intro p { margin-top: 0; color: var(--ink-soft); }

/* Project story */
.project-stories { border-bottom: 1px solid var(--line); }
.project-story { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr); min-height: 760px; border-bottom: 1px solid var(--line); }
.project-story:last-child { border-bottom: 0; }
.project-story:nth-child(even) .project-visual { order: 2; }
.project-visual { position: relative; min-height: 620px; overflow: hidden; background: var(--paper-deep); }
.project-visual img { position: absolute; inset: 0; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.project-story:hover .project-visual img { transform: scale(1.018); }
.demo-tag { position: absolute; z-index: 1; left: 0; top: 0; padding: .7rem 1rem; background: var(--paper); color: var(--ink); font-size: .6rem; font-weight: 750; letter-spacing: .13em; text-transform: uppercase; }
.project-content { display: flex; flex-direction: column; justify-content: space-between; padding: clamp(2.3rem, 5vw, 5rem); }
.project-count { color: var(--clay); font-family: var(--serif); font-size: 1.25rem; }
.project-content h3 { max-width: 10ch; margin: 2rem 0 1.3rem; font-family: var(--serif); font-size: clamp(2.6rem, 5vw, 5.1rem); font-weight: 400; line-height: .97; letter-spacing: -.04em; }
.project-description { max-width: 34rem; margin: 0; color: var(--ink-soft); }
.project-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem 2rem; margin: 3rem 0 0; padding: 1.4rem 0 0; border-top: 1px solid var(--line); }
.project-facts div { min-width: 0; }
.project-facts dd { margin: 0; font-size: .82rem; }
.project-facts .wide { grid-column: 1 / -1; }

/* Material explorer */
.material-section { background: var(--ink); color: var(--paper); padding-block: clamp(5rem, 10vw, 9rem); }
.material-head { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: end; margin-bottom: clamp(3rem, 6vw, 5rem); }
.material-head .section-title { max-width: 10ch; }
.material-head p { max-width: 35rem; margin: 0; color: rgba(241,237,228,.66); }
.material-explorer { border-top: 1px solid rgba(255,255,255,.25); border-bottom: 1px solid rgba(255,255,255,.25); }
.material-tabs { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid rgba(255,255,255,.25); }
.material-tab {
  position: relative;
  min-height: 88px;
  padding: 1rem;
  border: 0;
  border-right: 1px solid rgba(255,255,255,.25);
  background: transparent;
  color: rgba(241,237,228,.55);
  cursor: pointer;
  font-size: .67rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-align: left;
  text-transform: uppercase;
  transition: color .25s, background .25s;
}
.material-tab:last-child { border-right: 0; }
.material-tab::before { content: attr(data-index); display: block; margin-bottom: .7rem; font-family: var(--serif); font-size: .75rem; letter-spacing: 0; }
.material-tab:hover, .material-tab:focus-visible { color: var(--paper); background: rgba(255,255,255,.04); }
.material-tab[aria-selected="true"] { color: var(--paper); background: rgba(255,255,255,.07); }
.material-tab[aria-selected="true"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 3px; background: var(--clay); }
.material-panel { display: grid; grid-template-columns: 1.18fr .82fr; min-height: 540px; }
.material-visual-wrap { display: grid; place-content: center; padding: clamp(2rem, 5vw, 5rem); border-right: 1px solid rgba(255,255,255,.25); background: #292b28; }
.material-swatch { position: relative; width: min(45vw, 600px); aspect-ratio: 1.55; box-shadow: 0 40px 60px rgba(0,0,0,.35); overflow: hidden; transition: background .35s, filter .35s; }
.material-swatch::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(255,255,255,.16), transparent 43%, rgba(0,0,0,.28)); mix-blend-mode: overlay; }
.material-swatch[data-material="shingle"] { background-color: #42433f; background-image: linear-gradient(135deg, rgba(255,255,255,.09) 25%, transparent 25%), linear-gradient(225deg, rgba(0,0,0,.18) 25%, transparent 25%), linear-gradient(45deg, rgba(255,255,255,.05) 25%, transparent 25%), linear-gradient(315deg, rgba(0,0,0,.18) 25%, #3c3d39 25%); background-position: 22px 0, 22px 0, 0 0, 0 0; background-size: 44px 44px; }
.material-swatch[data-material="metal"] { background-color: #3c403e; background-image: repeating-linear-gradient(90deg, transparent 0 90px, rgba(0,0,0,.45) 90px 94px, rgba(255,255,255,.12) 94px 98px, transparent 98px 112px), linear-gradient(#4e5350, #303330); }
.material-swatch[data-material="slate"] { background-color: #363a3a; background-image: repeating-linear-gradient(0deg, transparent 0 45px, rgba(10,12,12,.65) 45px 48px), repeating-linear-gradient(90deg, rgba(255,255,255,.04) 0 73px, rgba(0,0,0,.35) 73px 76px, rgba(255,255,255,.07) 76px 145px); }
.material-swatch[data-material="low"] { background-color: #55534e; background-image: repeating-linear-gradient(0deg, transparent 0 72px, rgba(18,18,17,.52) 72px 76px), linear-gradient(115deg, rgba(255,255,255,.07), rgba(0,0,0,.22)); }
.material-scale { display: flex; justify-content: space-between; margin-top: 1rem; color: rgba(255,255,255,.42); font-size: .58rem; letter-spacing: .12em; text-transform: uppercase; }
.material-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(2.2rem, 5vw, 5rem); }
.material-copy h3 { margin: 0 0 1.25rem; font-family: var(--serif); font-size: clamp(2.5rem, 4vw, 4.5rem); font-weight: 400; line-height: .98; }
.material-copy > p { max-width: 30rem; margin: 0; color: rgba(241,237,228,.68); }
.material-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 3rem; padding-top: 1.25rem; border-top: 1px solid rgba(255,255,255,.25); }
.material-specs p { margin: 0; font-size: .82rem; }
.material-note { margin-top: 1.6rem !important; color: rgba(241,237,228,.45) !important; font-size: .69rem; }

/* Process */
.process { padding-block: clamp(5rem, 10vw, 9rem); }
.process-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: clamp(3rem, 8vw, 8rem); }
.process-list { counter-reset: step; margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.process-list li { counter-increment: step; display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; padding: 1.65rem 0; border-bottom: 1px solid var(--line); }
.process-list li::before { content: "0" counter(step); color: var(--clay); font-family: var(--serif); }
.process-list h3 { margin: 0 0 .45rem; font-family: var(--serif); font-size: 1.55rem; font-weight: 400; }
.process-list p { margin: 0; color: var(--ink-soft); font-size: .88rem; }

/* CTA and footer */
.closing-cta { position: relative; padding-block: clamp(5rem, 10vw, 9rem); color: var(--paper); background: var(--clay-dark); overflow: hidden; }
.closing-cta::before { content: "BR"; position: absolute; right: -2vw; bottom: -12vw; color: rgba(255,255,255,.055); font-family: var(--serif); font-size: 36vw; line-height: .7; }
.closing-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr auto; gap: 3rem; align-items: end; }
.closing-grid h2 { max-width: 11ch; margin: 0; font-family: var(--serif); font-size: clamp(3rem, 6.5vw, 6.6rem); font-weight: 400; line-height: .94; letter-spacing: -.045em; }
.closing-grid p { max-width: 34rem; color: rgba(255,255,255,.72); }
.closing-actions { display: flex; gap: .75rem; flex-wrap: wrap; }
.site-footer { padding: 4rem var(--gutter) 2rem; color: var(--paper); background: var(--ink); }
.footer-main { display: grid; grid-template-columns: 1.1fr .55fr .55fr .8fr; gap: 3rem; padding-bottom: 4rem; }
.footer-brand p { max-width: 24rem; margin-top: 1.5rem; color: rgba(241,237,228,.58); font-size: .82rem; }
.footer-heading { margin: 0 0 1rem; color: rgba(241,237,228,.62); font-size: .62rem; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; }
.footer-prompt { color: rgba(241,237,228,.72); font-size: .78rem; margin: 0 0 1.2rem; }
.footer-list { margin: 0; padding: 0; list-style: none; }
.footer-list li + li { margin-top: .65rem; }
.footer-list a { color: rgba(241,237,228,.82); font-size: .78rem; text-decoration: none; }
.footer-list a:hover, .footer-list a:focus-visible { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.footer-note { margin: 0; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.18); color: rgba(241,237,228,.48); font-size: .65rem; }
.footer-note strong { color: rgba(241,237,228,.8); }

/* Interior page hero */
.page-hero { border-bottom: 1px solid var(--line); }
.page-hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(3rem, 8vw, 8rem); min-height: 570px; align-items: end; padding-block: clamp(5rem, 10vw, 9rem) clamp(3.5rem, 7vw, 6rem); }
.page-hero-copy .display { max-width: 10ch; }
.page-hero-aside { max-width: 33rem; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.page-hero-aside p { color: var(--ink-soft); font-family: var(--serif); font-size: clamp(1.2rem, 2vw, 1.55rem); }
.image-banner { height: min(68vw, 780px); min-height: 430px; overflow: hidden; background: var(--paper-deep); }
.image-banner img { height: 100%; object-fit: cover; }
.image-caption { display: flex; justify-content: space-between; gap: 2rem; padding: .8rem var(--gutter); border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; }

/* Services editorial rows */
.service-index { border-top: 1px solid var(--line); }
.service-row { display: grid; grid-template-columns: 70px 1fr 1.1fr; gap: clamp(1.5rem, 5vw, 5rem); padding: 2.8rem 0; border-bottom: 1px solid var(--line); }
.service-row .num { color: var(--clay); font-family: var(--serif); font-size: 1.1rem; }
.service-row h2, .service-row h3 { margin: 0; font-family: var(--serif); font-size: clamp(1.8rem, 3vw, 3rem); font-weight: 400; line-height: 1.05; }
.service-row p { max-width: 37rem; margin: 0 0 1rem; color: var(--ink-soft); }
.detail-section { padding-block: clamp(5rem, 10vw, 9rem); }
.detail-section.flush-top { padding-top: 0; }
.detail-split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(3rem, 8vw, 8rem); }
.detail-split img { height: 100%; min-height: 500px; object-fit: cover; }
.detail-copy { align-self: center; }
.detail-copy h2 { max-width: 12ch; margin: 0; font-family: var(--serif); font-size: clamp(2.5rem, 5vw, 5rem); font-weight: 400; line-height: .97; letter-spacing: -.04em; }
.detail-copy p { max-width: 36rem; color: var(--ink-soft); }
.simple-list { margin: 2rem 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.simple-list li { position: relative; padding: .88rem 1rem .88rem 1.5rem; border-bottom: 1px solid var(--line); font-size: .82rem; }
.simple-list li::before { content: ""; position: absolute; left: 0; top: 1.3rem; width: 6px; height: 6px; background: var(--clay); }

/* Portfolio */
.portfolio-notice { padding: 1.1rem var(--gutter); color: var(--paper); background: var(--clay-dark); font-size: .72rem; letter-spacing: .04em; text-align: center; }
.portfolio-notice strong { text-transform: uppercase; letter-spacing: .13em; }
.portfolio-grid { display: grid; grid-template-columns: 1fr 1fr; }
.portfolio-card { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.portfolio-card:nth-child(2n) { border-right: 0; }
.portfolio-card-image { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--paper-deep); }
.portfolio-card-image img { height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.portfolio-card:hover img { transform: scale(1.02); }
.portfolio-card-content { padding: clamp(1.7rem, 4vw, 3.5rem); }
.portfolio-card h2 { margin: 1.2rem 0 .7rem; font-family: var(--serif); font-size: clamp(2rem, 3.5vw, 3.6rem); font-weight: 400; line-height: 1; }
.portfolio-card p { color: var(--ink-soft); }
.portfolio-card .project-facts { margin-top: 2rem; }
.integrity-note { padding-block: 5rem; }
.integrity-box { display: grid; grid-template-columns: .65fr 1.35fr; gap: 3rem; padding: 2rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.integrity-box h2 { margin: 0; font-family: var(--serif); font-size: 2rem; font-weight: 400; }
.integrity-box p { max-width: 42rem; margin: 0; color: var(--ink-soft); }

/* Storm page */
.storm-band { padding-block: clamp(4rem, 8vw, 7rem); color: var(--paper); background: var(--ink); }
.storm-band-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(3rem, 8vw, 8rem); }
.storm-band h2 { max-width: 10ch; margin: 0; font-family: var(--serif); font-size: clamp(2.6rem, 5vw, 5.3rem); font-weight: 400; line-height: .98; }
.storm-band p { color: rgba(241,237,228,.67); }
.timeline { margin: 0; padding: 0; list-style: none; counter-reset: timeline; }
.timeline li { counter-increment: timeline; display: grid; grid-template-columns: 4rem 1fr; gap: 1.5rem; padding: 2rem 0; border-top: 1px solid var(--line); }
.timeline li:last-child { border-bottom: 1px solid var(--line); }
.timeline li::before { content: "0" counter(timeline); color: var(--clay); font-family: var(--serif); font-size: 1.2rem; }
.timeline h3 { margin: 0 0 .5rem; font-family: var(--serif); font-size: 1.65rem; font-weight: 400; }
.timeline p { margin: 0; color: var(--ink-soft); }
.warning-note { margin-top: 2rem; padding: 1.4rem; border-left: 4px solid var(--clay); background: var(--paper-deep); font-size: .82rem; }

/* About */
.principles { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.principle { min-height: 310px; padding: 2rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.principle .num { color: var(--clay); font-family: var(--serif); }
.principle h3 { margin: 4rem 0 .8rem; font-family: var(--serif); font-size: 1.75rem; font-weight: 400; }
.principle p { color: var(--ink-soft); font-size: .85rem; }

/* Contact */
.contact-layout { display: grid; grid-template-columns: .72fr 1.28fr; min-height: 820px; border-bottom: 1px solid var(--line); }
.contact-intro { padding: clamp(3rem, 7vw, 7rem) var(--gutter); color: var(--paper); background: var(--ink); }
.contact-intro h1 { max-width: 8ch; margin: 0 0 2rem; font-family: var(--serif); font-size: clamp(3.2rem, 6vw, 6.2rem); font-weight: 400; line-height: .94; letter-spacing: -.045em; }
.contact-intro > p { max-width: 27rem; color: rgba(241,237,228,.65); }
.contact-details { margin-top: 4rem; border-top: 1px solid rgba(255,255,255,.2); }
.contact-details div { padding: 1.2rem 0; border-bottom: 1px solid rgba(255,255,255,.2); }
.contact-details p { margin: 0; color: rgba(241,237,228,.82); }
.demo-contact-note { margin-top: 3rem; padding-left: 1rem; border-left: 2px solid var(--clay); font-size: .72rem; }
.contact-form-wrap { padding: clamp(3rem, 7vw, 7rem) var(--gutter); }
.form-head { margin-bottom: 3rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--line); }
.form-head h2 { margin: 0; font-family: var(--serif); font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 400; }
.form-head p { max-width: 38rem; color: var(--ink-soft); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.field { display: flex; flex-direction: column; gap: .55rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .66rem; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
.field input, .field select, .field textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--ink);
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  padding: .8rem 0;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-bottom-width: 3px; padding-bottom: calc(.8rem - 2px); }
.field .hint { margin: 0; color: var(--ink-soft); font-size: .68rem; }
.field .error { display: none; margin: 0; color: #8b2f25; font-size: .7rem; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: #8b2f25; }
.field.invalid .error { display: block; }
.form-consent { display: flex; align-items: flex-start; gap: .7rem; grid-column: 1 / -1; margin-top: .5rem; }
.form-consent input { margin-top: .25rem; accent-color: var(--ink); }
.form-consent label { color: var(--ink-soft); font-size: .73rem; }
.form-actions { display: flex; align-items: center; gap: 1.5rem; grid-column: 1 / -1; margin-top: 1rem; }
.form-status { margin: 0; color: var(--moss); font-size: .78rem; }

/* FAQ */
.faq { padding-block: clamp(5rem, 10vw, 9rem); }
.faq-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(3rem, 8vw, 8rem); }
.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { position: relative; padding: 1.4rem 3rem 1.4rem 0; cursor: pointer; font-family: var(--serif); font-size: 1.35rem; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: .3rem; top: 1.35rem; font-family: var(--sans); font-weight: 300; }
details[open] summary::after { content: "−"; }
details p { max-width: 40rem; margin: 0; padding: 0 3rem 1.5rem 0; color: var(--ink-soft); font-size: .88rem; }

/* Accessibility contrast refinements */
.project-count,
.service-row .num,
.principle .num { color: #6f422f; }
.project-facts .meta-label { color: #5d5b55; }
.material-scale { color: #aaa9a4; }
.material-note { color: #aaa69d !important; }
.footer-heading { color: #aaa69d; }
.footer-note { color: #aaa69d; }

/* Reveal hooks remain available without hiding semantic content or print/screenshot output. */
.reveal { opacity: 1; transform: none; }

:focus-visible { outline: 2px solid var(--clay); outline-offset: 4px; }
.hero :focus-visible, .site-footer :focus-visible, .material-section :focus-visible, .contact-intro :focus-visible { outline-color: #d5a17d; }

@media (max-width: 1120px) {
  .header-inner { grid-template-columns: 235px 1fr auto; }
  .site-nav a { padding-inline: .55rem; font-size: .61rem; }
  .site-nav a::after { left: .55rem; right: .55rem; }
  .header-action { display: none; }
  .project-story { min-height: 680px; }
}

@media (max-width: 860px) {
  .header-inner { min-height: 72px; grid-template-columns: 1fr auto; }
  .menu-toggle { display: block; z-index: 102; }
  .site-nav {
    position: fixed;
    z-index: 101;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    padding: 6rem var(--gutter) 3rem;
    background: var(--ink);
    color: var(--paper);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity .25s, transform .25s;
  }
  .site-nav.open { opacity: 1; visibility: visible; transform: none; }
  .site-nav a { flex: 0 0 auto; padding: .75rem 0; border-bottom: 1px solid rgba(255,255,255,.2); font-family: var(--serif); font-size: clamp(1.7rem, 7vw, 2.7rem); font-weight: 400; letter-spacing: -.02em; text-transform: none; }
  .site-nav a::after { display: none; }
  .hero-header .menu-toggle[aria-expanded="true"] { position: fixed; right: var(--gutter); color: var(--paper); }
  .hero-content { grid-template-columns: 1fr; }
  .hero-side { max-width: 28rem; }
  .hero-index { top: 94px; }
  .statement-grid, .section-head, .material-head, .process-grid, .page-hero-grid, .detail-split, .storm-band-grid, .faq-grid { grid-template-columns: 1fr; }
  .statement-grid { gap: 3.5rem; }
  .section-head { gap: 2rem; }
  .project-story { grid-template-columns: 1fr; min-height: 0; }
  .project-story:nth-child(even) .project-visual { order: 0; }
  .project-visual { min-height: 68vw; }
  .project-content { min-height: 540px; }
  .material-tabs { grid-template-columns: 1fr 1fr; }
  .material-tab:nth-child(2) { border-right: 0; }
  .material-tab:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.25); }
  .material-panel { grid-template-columns: 1fr; }
  .material-visual-wrap { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.25); }
  .material-swatch { width: min(80vw, 600px); }
  .closing-grid { grid-template-columns: 1fr; align-items: start; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .page-hero-grid { min-height: 0; align-items: start; }
  .detail-split img { min-height: 65vw; }
  .integrity-box { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-intro { min-height: 650px; }
}

@media (max-width: 640px) {
  :root { --gutter: 1.15rem; }
  .brand-name { font-size: .78rem; }
  .brand-name span:last-child { font-size: .51rem; }
  .brand-mark { width: 34px; height: 34px; }
  .hero { min-height: 760px; }
  .hero-content { padding-bottom: 2rem; }
  .hero-index { display: none; }
  .hero-side { padding: 1rem 0 0; border-left: 0; border-top: 1px solid rgba(255,255,255,.55); }
  .statement-number { font-size: 4.4rem; }
  .section-head { padding-inline: var(--gutter); }
  .project-visual { min-height: 88vw; }
  .project-content { min-height: 0; padding-block: 2.5rem 3rem; }
  .project-content h3 { font-size: 2.8rem; }
  .project-facts { grid-template-columns: 1fr; }
  .project-facts .wide { grid-column: auto; }
  .material-tab { min-height: 82px; padding: .75rem; }
  .material-visual-wrap { padding: 2rem 1rem; }
  .material-visual-wrap > div { width: 100%; }
  .material-swatch { width: 100%; }
  .material-specs { grid-template-columns: 1fr; gap: 1.2rem; }
  .footer-main { grid-template-columns: 1fr; gap: 2rem; }
  .footer-brand { margin-bottom: 1rem; }
  .service-row { grid-template-columns: 2.6rem 1fr; gap: 1rem; }
  .service-row > :last-child { grid-column: 2; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-card { border-right: 0; }
  .principles { grid-template-columns: 1fr; }
  .principle { min-height: 250px; }
  .principle h3 { margin-top: 2.5rem; }
  .form-grid { grid-template-columns: 1fr; }
  .field.full, .form-consent, .form-actions { grid-column: auto; }
  .form-actions { flex-direction: column; align-items: flex-start; }
  .image-caption { flex-direction: column; gap: .3rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}