/* ============================================================
   PureDesign Consult — Site Stylesheet
   Aesthetic: industrial-modern. Black/white base with brass accent.
   ============================================================ */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f6f5f2;
  --color-bg-dark: #0e0e0e;
  --color-ink: #0e0e0e;
  --color-ink-soft: #4a4a4a;
  --color-ink-muted: #8a8a8a;
  --color-line: #e5e3de;
  --color-accent: #b8965a;     /* brass */
  --color-accent-deep: #8d6f3d;

  --font-display: 'Helvetica Neue', Helvetica, Arial, system-ui, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --container: 1200px;
  --pad-x: clamp(20px, 5vw, 56px);

  --radius-sm: 4px;
  --radius-md: 10px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 8px 24px rgba(0,0,0,.08);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--color-accent-deep); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--color-ink);
}
h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.4rem); }
p  { margin: 0 0 1em; color: var(--color-ink-soft); }

.container { max-width: var(--container); margin: 0 auto; padding-left: var(--pad-x); padding-right: var(--pad-x); }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent-deep);
  margin-bottom: 1rem;
}

.divider {
  width: 56px; height: 2px;
  background: var(--color-accent);
  margin: 0 0 2rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-ink);
  background: var(--color-ink);
  color: #fff;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease, transform .15s ease;
}
.btn:hover { background: var(--color-accent-deep); border-color: var(--color-accent-deep); color: #fff; transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--color-ink); }
.btn--ghost:hover { background: var(--color-ink); color: #fff; }
.btn--accent { background: var(--color-accent); border-color: var(--color-accent); }
.btn--accent:hover { background: var(--color-accent-deep); border-color: var(--color-accent-deep); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--color-line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: inline-flex; align-items: center; color: var(--color-ink); }
.brand svg { height: 30px; width: auto; }
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-ink);
  position: relative;
  padding: 4px 0;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 2px; background: var(--color-accent); transform: scaleX(0); transform-origin: left;
  transition: transform .2s ease;
}
.nav-links a:hover::after, .nav-links a.is-active::after { transform: scaleX(1); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--color-ink); margin: 5px 0; transition: transform .2s ease; }

@media (max-width: 800px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 76px; left: 0; right: 0;
    flex-direction: column; gap: 0; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--color-line);
    max-height: 0; overflow: hidden; transition: max-height .25s ease;
  }
  .nav-links a { padding: 18px var(--pad-x); border-top: 1px solid var(--color-line); }
  .nav-links.is-open { max-height: 400px; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 78vh;
  display: flex; align-items: center;
  background: linear-gradient(120deg, #0e0e0e 0%, #1c1c1c 100%);
  color: #fff;
  overflow: hidden;
}
/* Subtle technical-drawing dot pattern overlay (no photo) */
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(184, 150, 90, 0.18) 1px, transparent 0);
  background-size: 32px 32px;
  opacity: 1;
}
/* Soft vignette so type stays the focal point */
.hero::after {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, transparent 0%, rgba(14,14,14,0.5) 70%),
    linear-gradient(180deg, rgba(14,14,14,0) 0%, rgba(14,14,14,0.4) 100%);
}
.hero .container { position: relative; z-index: 2; padding-top: 96px; padding-bottom: 96px; }
.hero h1 { color: #fff; max-width: 18ch; }
.hero h1 em {
  font-style: normal;
  color: var(--color-accent);
  position: relative;
}
.hero p.lede {
  font-size: 1.15rem;
  max-width: 60ch;
  color: rgba(255,255,255,.82);
  margin: 1.5rem 0 2.25rem;
}
.hero .eyebrow { color: var(--color-accent); }
.hero .actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero .btn--ghost { color: #fff; border-color: rgba(255,255,255,.5); }
.hero .btn--ghost:hover { background: #fff; color: var(--color-ink); }

/* ---------- Section helpers ---------- */
section { padding: clamp(60px, 9vw, 120px) 0; }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head .eyebrow { margin-bottom: 12px; }

.bg-soft { background: var(--color-bg-alt); }
.bg-dark { background: var(--color-bg-dark); color: #fff; }
.bg-dark h2, .bg-dark h3 { color: #fff; }
.bg-dark p { color: rgba(255,255,255,.78); }
.bg-dark .eyebrow { color: var(--color-accent); }

/* ---------- About / Intro ---------- */
.intro {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
}
.intro .copy h2 { max-width: 14ch; }
.intro .copy p { font-size: 1.05rem; }
.intro .stats {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px 40px;
  margin-top: 32px;
}
.stat { border-left: 2px solid var(--color-accent); padding-left: 20px; }
.stat .num { font-family: var(--font-display); font-size: 2.4rem; font-weight: 800; line-height: 1; color: var(--color-ink); }
.stat .label { display: block; margin-top: 8px; font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-ink-muted); }
.intro .visual {
  aspect-ratio: 4/5;
  background: url('../images/illustration-hardware.svg') center/cover #0e0e0e;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}
@media (max-width: 800px) {
  .intro { grid-template-columns: 1fr; gap: 40px; }
  .intro .visual { aspect-ratio: 4/3; }
}

/* ---------- Services teaser grid ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: #fff;
  border: 1px solid var(--color-line);
  padding: 36px 32px;
  border-radius: var(--radius-md);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  display: flex; flex-direction: column;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}
.service-card .num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  color: var(--color-accent-deep);
  margin-bottom: 24px;
}
.service-card h3 { margin-bottom: 12px; }
.service-card p { font-size: 0.97rem; }
.service-card .more {
  margin-top: auto;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-ink);
  display: inline-flex; align-items: center; gap: 6px;
}
.service-card .more::after { content: '→'; transition: transform .2s ease; }
.service-card:hover .more::after { transform: translateX(4px); }

@media (max-width: 900px) { .services-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .services-grid { grid-template-columns: 1fr; } }

/* ---------- Services page detail blocks ---------- */
.service-detail {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 60px 0;
  border-top: 1px solid var(--color-line);
}
.service-detail:first-child { border-top: 0; }
.service-detail .visual {
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  background-size: cover; background-position: center;
  box-shadow: var(--shadow-md);
}
.service-detail.alt { grid-template-columns: 1fr 1.1fr; }
.service-detail.alt .copy { order: 2; }
.service-detail.alt .visual { order: 1; }
.service-detail ul { padding-left: 20px; margin: 1em 0 0; color: var(--color-ink-soft); }
.service-detail li { margin: 6px 0; }
@media (max-width: 800px) {
  .service-detail, .service-detail.alt { grid-template-columns: 1fr; gap: 32px; }
  .service-detail.alt .copy, .service-detail.alt .visual { order: initial; }
}

/* ---------- Process strip ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.process .step {
  border-top: 2px solid var(--color-accent);
  padding-top: 20px;
}
.process .step .num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
  margin-bottom: 8px;
}
.process .step h3 { font-size: 1.2rem; margin-bottom: 8px; }
.process .step p { font-size: 0.95rem; margin: 0; }
@media (max-width: 800px) { .process { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .process { grid-template-columns: 1fr; } }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--color-bg-dark);
  color: #fff;
  text-align: center;
  padding: clamp(60px, 8vw, 100px) 0;
}
.cta-band h2 { color: #fff; max-width: 22ch; margin-left: auto; margin-right: auto; }
.cta-band p { color: rgba(255,255,255,.72); max-width: 56ch; margin-left: auto; margin-right: auto; margin-bottom: 32px; }
.cta-band .btn--accent { background: var(--color-accent); border-color: var(--color-accent); }
.cta-band .btn--accent:hover { background: #fff; color: var(--color-ink); border-color: #fff; }

/* ---------- Contact page ---------- */
.contact-hero { background: var(--color-bg-alt); padding: 100px 0 60px; }
.contact-hero h1 { font-size: clamp(2.4rem, 5vw, 3.5rem); margin-bottom: 16px; }
.contact-hero p { font-size: 1.1rem; max-width: 60ch; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  padding: 80px 0;
}
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; gap: 40px; } }

.contact-block { }
.contact-block h2 { font-size: 1.6rem; margin-bottom: 8px; }
.contact-block .label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  margin-bottom: 6px;
}
.contact-card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 24px;
}
.contact-card .heading {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px;
}
.contact-card .heading .icon {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  font-weight: 800;
  font-family: var(--font-display);
}
.contact-card h3 { margin: 0; font-size: 1.1rem; }
.contact-card .body {
  font-style: normal;
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--color-ink);
}
.contact-card a { color: var(--color-ink); border-bottom: 1px solid var(--color-accent); }
.contact-card a:hover { color: var(--color-accent-deep); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,.7);
  padding: 56px 0 28px;
  font-size: 0.92rem;
}
.site-footer .grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
@media (max-width: 800px) { .site-footer .grid { grid-template-columns: 1fr; gap: 32px; } }
.site-footer .brand svg { color: #fff; height: 28px; }
.site-footer h4 {
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 8px 0; }
.site-footer a:hover { color: var(--color-accent); }
.site-footer .legal {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 20px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 0.85rem;
  color: rgba(255,255,255,.5);
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }