:root {
  --bg: #0F0F0F;
  --bg-raised: #1A1A1A;
  --bg-card: #222222;
  --amber: #F5A623;
  --amber-dim: rgba(245, 166, 35, 0.15);
  --amber-border: rgba(245, 166, 35, 0.3);
  --fg: #FAFAFA;
  --fg-muted: rgba(250, 250, 250, 0.55);
  --fg-dim: rgba(250, 250, 250, 0.35);
  --font-head: 'Archivo', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --max-w: 1200px;
  --pad: clamp(1.5rem, 5vw, 3rem);
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ── */
.site-nav {
  border-bottom: 1px solid rgba(250,250,250,0.08);
  padding: 0 var(--pad);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.25rem;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.brand-os {
  color: var(--amber);
  margin-left: 1px;
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* ── HERO ── */
.hero {
  position: relative;
  padding: clamp(3rem, 8vw, 6rem) var(--pad) clamp(3rem, 8vw, 5rem);
  overflow: hidden;
}
.hero-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--amber);
  font-weight: 600;
  margin-bottom: 1.25rem;
}
.hero-headline {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 1.5rem;
}
.hero-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 38ch;
  line-height: 1.7;
}
.hero-stats {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  border-left: 1px solid var(--amber-border);
  padding-left: 3rem;
}
.stat {}
.stat-num {
  display: block;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 2.5rem;
  color: var(--amber);
  line-height: 1;
  margin-bottom: 0.35rem;
  letter-spacing: -0.03em;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.hero-diag {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--amber) 0%, transparent 60%);
}

/* ── SERVICES ── */
.services {
  padding: clamp(3rem, 6vw, 5rem) var(--pad);
  background: var(--bg-raised);
}
.section-header {
  max-width: var(--max-w);
  margin: 0 auto 3rem;
}
.section-header h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 0.5rem;
}
.section-header p {
  color: var(--fg-muted);
  font-size: 1rem;
}
.services-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(250,250,250,0.06);
  border: 1px solid rgba(250,250,250,0.06);
}
.service-card {
  background: var(--bg-raised);
  padding: 2rem 1.75rem;
  border: 1px solid rgba(250,250,250,0.04);
  transition: border-color 0.2s;
}
.service-card:hover {
  border-color: var(--amber-border);
}
.service-icon {
  font-size: 1.5rem;
  color: var(--amber);
  margin-bottom: 1rem;
  line-height: 1;
}
.service-card h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--fg);
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}
.service-card p {
  font-size: 0.82rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* ── DIFFERENCE ── */
.difference {
  padding: clamp(4rem, 8vw, 7rem) var(--pad);
  background: var(--bg);
}
.diff-inner {
  max-width: var(--max-w);
  margin: 0 auto 4rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 5rem;
  align-items: start;
}
.diff-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--amber);
  font-weight: 600;
  padding-top: 0.4rem;
  white-space: nowrap;
}
.diff-inner h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: var(--fg);
  margin-bottom: 1rem;
}
.diff-inner p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}
.diff-contrast {
  margin-top: 1.25rem;
  font-weight: 600;
  color: var(--fg) !important;
}
.diff-quote {
  max-width: var(--max-w);
  margin: 0 auto;
  border-top: 1px solid rgba(250,250,250,0.08);
  padding-top: 3rem;
  padding-left: calc(200px + 5rem);
}
.diff-quote blockquote {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-style: italic;
  color: var(--fg);
  line-height: 1.5;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}
.diff-quote cite {
  font-size: 0.8rem;
  color: var(--fg-dim);
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── TESTIMONIALS ── */
.testimonials {
  padding: clamp(3rem, 6vw, 5rem) var(--pad);
  background: var(--bg-raised);
  border-top: 1px solid rgba(250,250,250,0.06);
}
.testimonials .section-header {
  margin-bottom: 2.5rem;
}
.testimonial-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.testimonial {
  border: 1px solid rgba(250,250,250,0.07);
  padding: 2rem;
  position: relative;
  background: var(--bg-card);
}
.quote-mark {
  font-family: var(--font-head);
  font-size: 4rem;
  font-weight: 900;
  color: var(--amber);
  line-height: 0.8;
  margin-bottom: 0.75rem;
  display: block;
}
.testimonial p {
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}
.testimonial cite {
  font-size: 0.75rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── MANIFESTO ── */
.manifesto {
  padding: clamp(4rem, 8vw, 7rem) var(--pad);
  background: var(--bg);
}
.manifesto-inner {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}
.manifesto-inner h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--fg);
  margin-bottom: 1.5rem;
}
.manifesto-inner p {
  color: var(--fg-muted);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}
.manifesto-rule {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(250,250,250,0.08);
  flex-wrap: wrap;
}
.manifesto-rule span {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--amber);
  font-weight: 600;
}
.rule-dot {
  width: 4px;
  height: 4px;
  background: var(--amber-dim);
  border-radius: 50%;
}

/* ── FOOTER ── */
.site-footer {
  border-top: 1px solid rgba(250,250,250,0.08);
  padding: 2.5rem var(--pad);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-name {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1rem;
  color: var(--fg);
  letter-spacing: -0.02em;
  display: block;
}
.footer-sub {
  font-size: 0.75rem;
  color: var(--fg-dim);
  display: block;
  margin-top: 0.2rem;
}
.footer-meta {
  font-size: 0.75rem;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-stats { border-left: none; padding-left: 0; border-top: 1px solid var(--amber-border); padding-top: 2rem; flex-direction: row; flex-wrap: wrap; gap: 1.5rem; }
  .diff-inner { grid-template-columns: 1fr; gap: 1.5rem; }
  .diff-quote { padding-left: 0; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 1rem; text-align: center; }
}
@media (max-width: 600px) {
  .services-grid { grid-template-columns: 1fr; }
  .manifesto-rule { gap: 1rem; }
}