/* Atlas Core Technologies — monochrome / brass */
:root {
  --paper: #f6f4f0;
  --paper-2: #edeae4;
  --ink: #16150f;
  --ink-2: #211f18;
  --ink-soft: #4c4a42;
  --line: #d9d5cc;
  --line-dark: #35332b;
  --brass: #a88a52;
  --brass-soft: #c2a878;
  --radius: 8px;
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mark: "Michroma", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- type ---------- */
h1, h2, h3 { font-family: var(--font-display); line-height: 1.12; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.4rem, 5.2vw, 3.9rem); font-weight: 600; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); font-weight: 600; margin-bottom: 0.4em; }
h3 { font-size: 1.16rem; font-weight: 600; margin-bottom: 0.5em; }

.eyebrow {
  font-family: var(--font-mark);
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 1.1em;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--brass);
  vertical-align: middle;
  margin-right: 12px;
}
.eyebrow-light { color: var(--brass-soft); }
.eyebrow-light::before { background: var(--brass-soft); }

.lede {
  font-size: 1.13rem;
  color: var(--ink-soft);
  max-width: 56ch;
}

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 244, 240, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 13px;
  text-decoration: none;
  color: var(--ink);
}
.brand-mark { height: 34px; width: auto; }
.brand-word {
  font-family: var(--font-mark);
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}
.nav-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 160ms ease-out;
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  padding: 8px 18px;
  color: var(--ink) !important;
  transition: background 160ms ease-out, color 160ms ease-out !important;
}
.nav-cta:hover { background: var(--ink); color: var(--paper) !important; }

/* ---------- hero ---------- */
.hero {
  background:
    radial-gradient(1100px 600px at 78% 18%, #2c2a21 0%, transparent 55%),
    linear-gradient(165deg, var(--ink-2) 0%, var(--ink) 70%);
  color: var(--paper);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  align-items: center;
  gap: 40px;
  padding-top: 110px;
  padding-bottom: 120px;
}
.hero h1 { color: #fbfaf7; margin-bottom: 0.45em; }
.hero .lede { color: #b8b5ab; }
.hero .eyebrow { color: var(--brass-soft); }
.hero .eyebrow::before { background: var(--brass-soft); }

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 2.2em;
  flex-wrap: wrap;
}
.btn {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.97rem;
  text-decoration: none;
  border-radius: var(--radius);
  padding: 13px 26px;
  transition: transform 160ms ease-out, background 160ms ease-out, color 160ms ease-out, border-color 160ms ease-out;
}
.btn:active { transform: translateY(1px); }
.btn-light { background: var(--paper); color: var(--ink); }
.btn-light:hover { background: #fff; }
.btn-ghost {
  color: var(--paper);
  border: 1px solid var(--line-dark);
}
.btn-ghost:hover { border-color: var(--brass-soft); color: var(--brass-soft); }

.hero-mark { text-align: center; }
.hero-mark img {
  width: min(78%, 290px);
  opacity: 0.95;
  filter: drop-shadow(0 24px 60px rgba(0, 0, 0, 0.45));
}

/* ---------- sections ---------- */
.section { padding: 104px 0; }
.section-alt { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.grid { display: grid; gap: 26px; margin-top: 52px; }
.services-grid { grid-template-columns: repeat(3, 1fr); }
.clients-grid { grid-template-columns: repeat(3, 1fr); gap: 44px; }

.card {
  background: #fffefb;
  border-radius: var(--radius);
  padding: 30px 28px 26px;
  box-shadow: 0 1px 3px rgba(22, 21, 15, 0.1), 0 1px 2px rgba(22, 21, 15, 0.06);
  border-top: 2px solid transparent;
  transition: transform 200ms ease-out, box-shadow 200ms ease-out, border-color 200ms ease-out;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(22, 21, 15, 0.12);
  border-top-color: var(--brass);
}
.card-num {
  font-family: var(--font-mark);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  color: var(--brass);
  display: block;
  margin-bottom: 1.4em;
}
.card p, .client p, .band-item p { font-size: 0.96rem; color: var(--ink-soft); }

.client h3 { padding-top: 18px; border-top: 2px solid var(--ink); }

/* ---------- dark band ---------- */
.band {
  background: linear-gradient(165deg, var(--ink-2) 0%, var(--ink) 80%);
  color: var(--paper);
  padding: 104px 0;
}
.band h2 { color: #fbfaf7; }
.band-grid { grid-template-columns: repeat(3, 1fr); gap: 44px; margin-top: 56px; }
.band-item h3 {
  color: var(--brass-soft);
  padding-top: 18px;
  border-top: 1px solid var(--line-dark);
}
.band-item p { color: #aaa79d; }

/* ---------- contact ---------- */
.contact-inner { text-align: center; }
.contact-inner .eyebrow::before { margin-right: 0; display: block; margin: 0 auto 14px; }
.contact-inner .lede { margin: 0 auto; }
.contact-email {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  margin-top: 1.4em;
  border-bottom: 3px solid var(--brass);
  padding-bottom: 6px;
  transition: color 180ms ease-out, border-color 180ms ease-out;
}
.contact-email:hover { color: var(--brass); }
.contact-loc {
  margin-top: 2.4em;
  font-size: 0.92rem;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

/* ---------- footer ---------- */
.footer {
  background: var(--ink);
  color: #8e8b81;
  padding: 44px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.88rem;
}
.footer-mark { height: 40px; width: auto; opacity: 0.85; }
.footer a { color: #c5c2b8; text-decoration: none; }
.footer a:hover { color: var(--brass-soft); }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 500ms ease-out, transform 500ms ease-out; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .services-grid, .clients-grid, .band-grid { grid-template-columns: 1fr 1fr; }
  .hero-inner { grid-template-columns: 1fr; padding-top: 80px; padding-bottom: 80px; }
  .hero-mark { display: none; }
}
@media (max-width: 600px) {
  .services-grid, .clients-grid, .band-grid { grid-template-columns: 1fr; }
  .section, .band { padding: 72px 0; }
  .nav-links { gap: 18px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .brand-word { font-size: 0.8rem; }
}