/* =========================================================
   Argenta Global — Design System
   Palette:  ink #0B0D10 · surface #14171C · line #262B32
             platinum #D9DEE6 · steel #8B96A3 · copper #E2734E
   Type:     Fraunces (display) / IBM Plex Sans (body) / IBM Plex Mono (data)
   ========================================================= */

:root {
  --ink: #0B0D10;
  --surface: #14171C;
  --surface-raised: #191D24;
  --line: #262B32;
  --line-soft: #1C2028;
  --platinum: #D9DEE6;
  --platinum-dim: #AEB6C2;
  --steel: #8B96A3;
  --copper: #E2734E;
  --copper-dim: #B85A3A;
  --success: #7FB88A;

  --font-display: "Fraunces", "Georgia", serif;
  --font-body: "IBM Plex Sans", -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", monospace;

  --container: 1180px;
  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 22px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--platinum);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

@media (max-width: 720px) {
  .wrap { padding: 0 20px; }
}

/* ---------- Typography ---------- */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--platinum);
  letter-spacing: -0.01em;
  line-height: 1.1;
}

h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); font-weight: 500; }
h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
h3 { font-size: 1.3rem; }

p { color: var(--steel); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--copper);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--copper);
  display: inline-block;
}

.lede {
  font-size: 1.15rem;
  color: var(--steel);
  max-width: 46ch;
}

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

/* ---------- Header / Nav ---------- */

header.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 13, 16, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--platinum);
}

.brand .mark {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.brand .mark svg { width: 100%; height: 100%; }

nav.primary-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

nav.primary-nav a {
  font-size: 0.87rem;
  color: var(--steel);
  transition: color 0.2s ease;
  position: relative;
  white-space: nowrap;
}

nav.primary-nav a:hover,
nav.primary-nav a.active { color: var(--platinum); }

nav.primary-nav a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -26px;
  height: 2px;
  background: var(--copper);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  width: 40px;
  height: 40px;
  color: var(--platinum);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

@media (max-width: 1040px) {
  nav.primary-nav {
    position: fixed;
    top: 76px; left: 0; right: 0;
    background: var(--ink);
    border-bottom: 1px solid var(--line-soft);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 20px 20px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
  }
  nav.primary-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  nav.primary-nav a { padding: 14px 0; width: 100%; border-bottom: 1px solid var(--line-soft); }
  nav.primary-nav a.active::after { display: none; }
  .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: inline-flex; }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius-s);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--copper);
  color: #170D08;
}
.btn-primary:hover { background: #ee8258; }

.btn-ghost {
  background: transparent;
  color: var(--platinum);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--platinum-dim); }

.btn-block { width: 100%; }

/* ---------- Sections ---------- */

section { padding: 100px 0; border-bottom: 1px solid var(--line-soft); }
section:last-of-type { border-bottom: none; }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head h2 { margin-top: 14px; }
.section-head p { margin-top: 16px; }

@media (max-width: 720px) {
  section { padding: 64px 0; }
}

/* ---------- Cards / Grids ---------- */

.grid {
  display: grid;
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 32px;
}

.card .icon {
  width: 42px; height: 42px;
  margin-bottom: 20px;
  color: var(--copper);
}
.card .icon svg { width: 100%; height: 100%; }

.card h3 { margin-bottom: 10px; }
.card p { font-size: 0.95rem; }

/* ---------- Footer ---------- */

footer.site-footer {
  padding: 64px 0 40px;
  border-top: 1px solid var(--line-soft);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 48px;
}

.footer-grid h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 16px;
}

.footer-grid a, .footer-grid p {
  display: block;
  font-size: 0.9rem;
  color: var(--steel);
  margin-bottom: 10px;
}
.footer-grid a:hover { color: var(--platinum); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid var(--line-soft);
  font-size: 0.82rem;
  color: var(--steel);
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 14px; text-align: center; }
}

/* ---------- Utility ---------- */

.center { text-align: center; margin-left: auto; margin-right: auto; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.flex { display: flex; align-items: center; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--steel);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 6px 12px;
}
.badge .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--success);
}