@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&family=DM+Mono:wght@300;400;500&display=swap');

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

:root {
  --bg: #F6F6F4;
  --fg: #0B0B0A;
  --fg-muted: #5A5A57;
  --fg-subtle: #6E6E6A;
  /* Hex fallback for browsers without oklch support */
  --accent: #1a44d8;
  --accent-dim: rgba(26, 68, 216, 0.08);
  --accent-mid: rgba(26, 68, 216, 0.3);
  --border: #E2E2DE;
  --border-strong: #C8C8C2;
  --card-bg: #FFFFFF;
  --max-w: 1340px;
  --nav-h: 72px;
}

@supports (color: oklch(0% 0 0)) {
  :root {
    --accent: oklch(52% 0.22 255);
    --accent-dim: oklch(52% 0.22 255 / 0.08);
    --accent-mid: oklch(52% 0.22 255 / 0.3);
  }
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

/* NAV */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 48px;
  transition: background 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}

nav.scrolled {
  background: rgba(246,246,244,0.95);
  backdrop-filter: blur(12px);
  border-color: var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 7px;
}

.nav-logo span { color: var(--accent); }

.nav-logo-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.nav-dark .nav-logo-icon { filter: invert(1); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover, .nav-links a.active { color: var(--fg); }

.nav-cta {
  background: var(--fg);
  color: var(--bg) !important;
  padding: 10px 22px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background 0.2s, color 0.2s !important;
}

.nav-cta:hover {
  background: var(--accent) !important;
  color: #fff !important;
}

/* Dark nav variant (contact page) */
.nav-dark .nav-logo { color: var(--bg); }
.nav-dark .nav-links a { color: rgba(246,246,244,0.5); }
.nav-dark .nav-links a:hover { color: var(--bg); }
.nav-dark .nav-burger span { background: var(--bg); }

/* HAMBURGER */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  width: 32px;
  height: 32px;
}

.nav-burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--fg);
  transition: transform 0.3s ease, opacity 0.2s ease;
  transform-origin: center;
}

nav.open .nav-burger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
nav.open .nav-burger span:nth-child(2) { opacity: 0; }
nav.open .nav-burger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* CONTAINER */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 48px;
}

/* LABEL */
.label {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

.label::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 1px;
  background: var(--accent);
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 48px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.footer-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.footer-links a {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--fg); }

.footer-copy {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--fg-subtle);
}

/* SCROLL REVEAL */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* BUTTONS */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--fg);
  color: var(--bg);
  padding: 16px 32px;
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary:hover { background: var(--accent); color: #fff; }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: var(--fg);
  padding: 15px 31px;
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--border-strong);
  transition: border-color 0.2s, background 0.2s;
  cursor: pointer;
}

.btn-outline:hover {
  border-color: var(--fg);
  background: var(--fg);
  color: var(--bg);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  nav { padding: 0 24px; }
  .container { padding: 0 24px; }
  footer { padding: 32px 24px; }
  .nav-burger { display: flex; }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 8px 24px 24px;
    gap: 0;
    z-index: 99;
    box-shadow: 0 8px 24px rgb(0 0 0 / 0.06);
  }

  nav.open .nav-links { display: flex; }

  .nav-links li { border-bottom: 1px solid var(--border); }

  .nav-links a {
    display: block;
    padding: 16px 0;
    color: var(--fg-muted) !important;
    font-size: 13px;
  }

  .nav-links .nav-cta {
    background: var(--fg);
    color: var(--bg) !important;
    text-align: center;
    padding: 14px;
    justify-content: center;
    margin-top: 4px;
  }

  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; gap: 16px; }
}

@media (max-width: 480px) {
  .container { padding: 0 20px; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
}