:root {
  --bg: #0a0c10;
  --panel: #12161c;
  --panel-alt: #0e1116;
  --line: #232932;
  --ink: #eef1f5;
  --ink-dim: #b7c0cc;
  --grey: #828d9b;
  --accent: #4f9c94;
  --accent-soft: #86c4bd;
  --mono: "SF Mono", "Roboto Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --max-width: 1120px;
  --radius: 6px;
  font-size: 16px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

a { color: var(--accent-soft); }
a:hover { color: var(--accent); }

h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 16px; font-weight: 700; letter-spacing: -0.01em; color: var(--ink); }
h1 { font-size: clamp(2rem, 4.2vw, 2.65rem); }
h2 { font-size: clamp(1.4rem, 2.8vw, 1.75rem); }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }
p { margin: 0 0 16px; color: var(--ink-dim); }
ul, ol { color: var(--ink-dim); padding-left: 20px; }
li { margin-bottom: 8px; }

.eyebrow {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.76rem;
  color: var(--accent-soft);
  font-weight: 600;
  margin: 0 0 12px;
}

.mono { font-family: var(--mono); }

.skip-link {
  position: absolute;
  top: -48px;
  left: 12px;
  z-index: 100;
  background: var(--accent);
  color: #06110f;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: top 0.15s ease;
}
.skip-link:focus {
  top: 12px;
}

.tag {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--accent-soft);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(10, 12, 16, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
}
.logo-mark { width: 24px; height: 24px; color: var(--accent-soft); flex-shrink: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); display: block; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
}
.nav-links a {
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 0.92rem;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.nav-cta {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 16px !important;
  color: var(--ink) !important;
}
.nav-cta:hover { border-color: var(--accent); color: var(--accent-soft) !important; }

/* Hero */
.hero { padding: 60px 0 52px; border-bottom: 1px solid var(--line); position: relative; }
.hero.compact { padding: 56px 0 48px; }
.hero-photo {
  background-image:
    linear-gradient(180deg, rgba(10, 12, 16, 0.62) 0%, rgba(10, 12, 16, 0.8) 60%, rgba(10, 12, 16, 0.97) 100%),
    var(--hero-img);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.photo-credit {
  position: absolute;
  right: 14px;
  bottom: 10px;
  font-family: var(--mono);
  font-size: 0.68rem;
  color: rgba(238, 241, 245, 0.55);
  text-decoration: none;
}
.photo-credit:hover { color: var(--accent-soft); }
.hero h1 { font-size: clamp(1.7rem, 3vw, 2.15rem); max-width: 780px; }
.hero h1::before {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  border-radius: 2px;
  background: var(--accent);
  margin-bottom: 20px;
}
.lead { font-size: 1.12rem; max-width: 740px; color: var(--ink-dim); }
.hero .lead { max-width: 600px; font-size: 1.06rem; }

.proof-line {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--grey);
  max-width: 560px;
  margin-top: -4px;
}

.hero-actions { display: flex; gap: 14px; margin-top: 8px; flex-wrap: wrap; }

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}
.hero-facts span {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-dim);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
}
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.94rem;
  border: 1px solid transparent;
}
.btn-primary { background: var(--accent); color: #06110f; }
.btn-primary:hover { background: var(--accent-soft); }
.btn-secondary { border-color: var(--line); color: var(--ink-dim); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent-soft); }

/* Sections */
.section { padding: 64px 0; border-bottom: 1px solid var(--line); }
.section:last-of-type { border-bottom: none; }
.section-lead { font-size: 1.02rem; max-width: 680px; }
.section-alt { background: var(--panel-alt); }

.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.footer-tagline { margin-top: 12px; max-width: 320px; }

.cards.steps { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.step-num {
  display: block;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-soft);
  margin-bottom: 10px;
}

.model-fit {
  font-size: 0.88rem;
  color: var(--grey);
  margin: 0;
}

.two-col {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.feature-photo {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  display: block;
  margin-top: 32px;
  filter: saturate(0.85) brightness(0.92);
}

/* Panels */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 6px 28px;
}
.panel.pad { padding: 28px; }
.facts > div { padding: 16px 0; border-bottom: 1px solid var(--line); }
.facts > div:last-child { border-bottom: none; }
dt { font-family: var(--mono); font-size: 0.76rem; color: var(--grey); margin-bottom: 4px; }
dd { margin: 0; font-weight: 600; color: var(--ink); }

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
  margin-top: 32px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}
.card h3 { color: var(--ink); }
.card .tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent-soft);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
  display: block;
}
.card a.card-link {
  font-size: 0.88rem;
  color: var(--accent-soft);
  text-decoration: none;
}
.card a.card-link:hover { text-decoration: underline; }

/* Engagement model rows */
.model-list { display: flex; flex-direction: column; gap: 0; margin-top: 24px; }
.model {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}
.model:last-child { border-bottom: 1px solid var(--line); }
.model h3 { margin-bottom: 6px; }
.model .tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--grey);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Service detail blocks */
.service-block {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}
.service-block:first-of-type { border-top: none; padding-top: 8px; }
.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 20px;
}
.service-grid h4 { color: var(--accent-soft); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 10px; font-family: var(--mono); font-weight: 600; }
.service-grid ul { margin: 0; padding-left: 18px; }
.service-grid li { font-size: 0.95rem; margin-bottom: 6px; }

/* Case studies */
.case {
  padding: 32px 0;
  border-top: 1px solid var(--line);
}
.case:first-of-type { border-top: none; }
.case .tag { font-family: var(--mono); font-size: 0.75rem; color: var(--grey); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 10px; display: block; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 16px; }
.case-grid h4 { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-dim); margin-bottom: 8px; font-family: var(--mono); font-weight: 600; }
.case-grid p { margin: 0; font-size: 0.95rem; }

/* Tags */
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.tags span {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 0.86rem;
  color: var(--ink-dim);
}

/* Contact form */
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.contact-form .hp-field { position: absolute; left: -9999px; }
.contact-form button { align-self: flex-start; }
.contact-form label { font-family: var(--mono); font-size: 0.78rem; color: var(--grey); display: block; margin-bottom: 6px; }
.contact-form input, .contact-form textarea {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.95rem;
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--accent); }
.contact-form textarea { resize: vertical; min-height: 120px; }

/* Footer */
.site-footer { padding: 40px 0 48px; border-top: 1px solid var(--line); }
.footer-grid { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 24px; }
.footer-nav { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-nav a { color: var(--grey); font-size: 0.88rem; text-decoration: none; }
.footer-nav a:hover { color: var(--ink-dim); }
.footer-legal { color: var(--grey); font-size: 0.82rem; margin-top: 24px; }
.footer-legal p { color: var(--grey); margin: 4px 0; }

/* Responsive */
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .model { grid-template-columns: 1fr; gap: 10px; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 28px 24px;
    gap: 18px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-cta { align-self: flex-start; }
}