/* ============================================================
   ARIARCH.TECH — shared.css
   Navegação compartilhada + variáveis brand kit unificadas
   ============================================================ */

/* ── BRAND TOKENS (unificados) ── */
:root {
  --bg:        #0e1117;
  --bg2:       #131720;
  --bg3:       #171d29;
  --border:    rgba(255,255,255,0.07);
  --border-hi: rgba(255,255,255,0.12);
  --cyan:      #00d4e8;
  --cyan-bg:   rgba(0,212,232,0.06);
  --cyan-bd:   rgba(0,212,232,0.18);
  --cyan-glow: rgba(0,212,232,0.20);
  --violet:    #a855f7;
  --violet-bg: rgba(168,85,247,0.06);
  --violet-bd: rgba(168,85,247,0.18);
  --text:      #dde4ee;
  --text-dim:  #8898aa;
  --text-mute: #4a5568;
  --green:     #22d970;
  --green-bg:  rgba(34,217,112,0.06);
  --green-bd:  rgba(34,217,112,0.20);

  --font-head: 'Raleway', sans-serif;
  --font-mono: 'Space Mono', monospace;
  --ease:      cubic-bezier(0.16,1,0.3,1);
  --radius:    16px;
}

/* ── GLOBAL RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-head);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: var(--cyan); color: var(--bg); }
a { text-decoration: none; color: inherit; }

/* ── SUBTLE GRID ── */
body::before {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.013) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.013) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 30%, transparent 100%);
}

/* ── TOP ACCENT LINE ── */
body::after {
  content: '';
  position: fixed; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  z-index: 1000;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--cyan); border-radius: 99px; }

/* ──────────────────────────────────────────────
   SITE NAV — presente em todas as páginas
   ────────────────────────────────────────────── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  padding: 0;
  /* glass */
  background: rgba(14,17,23,0.80);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  /* pushed down by the 2px accent line */
  margin-top: 2px;
}

.site-nav__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

/* Logo */
.site-nav__logo {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
  white-space: nowrap;
}
.site-nav__logo .ext { color: var(--cyan); text-shadow: 0 0 20px rgba(0,212,232,0.35); }

/* Links */
.site-nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.site-nav__links a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 10px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-mute);
  transition: color 0.2s, background 0.2s, border-color 0.2s;
  border: 1px solid transparent;
  white-space: nowrap;
}

.site-nav__links a:hover {
  color: var(--text);
  background: var(--bg2);
  border-color: var(--border);
}

.site-nav__links a.active {
  color: var(--cyan);
  background: var(--cyan-bg);
  border-color: var(--cyan-bd);
}

.site-nav__links a .nav-icon {
  width: 12px; height: 12px;
  opacity: 0.7;
  flex-shrink: 0;
}

/* CTA pill */
.site-nav__cta {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  background: var(--cyan);
  color: #08111a !important;
  border-radius: 10px;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border: none !important;
  transition: opacity 0.2s, transform 0.18s var(--ease), box-shadow 0.18s !important;
}

.site-nav__cta:hover {
  opacity: 0.9;
  transform: translateY(-1px) !important;
  box-shadow: 0 6px 20px var(--cyan-glow) !important;
  background: var(--cyan) !important;
  color: #08111a !important;
}

/* Mobile hamburger */
.site-nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 32px; height: 32px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  padding: 6px;
  transition: border-color 0.2s;
}
.site-nav__hamburger span {
  display: block;
  height: 1px;
  background: var(--text-dim);
  border-radius: 99px;
  transition: transform 0.3s var(--ease), opacity 0.3s, width 0.3s;
  transform-origin: center;
}
.site-nav__hamburger.open { border-color: var(--cyan-bd); }
.site-nav__hamburger.open span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.site-nav__hamburger.open span:nth-child(2) { opacity: 0; }
.site-nav__hamburger.open span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* Mobile menu */
@media (max-width: 640px) {
  .site-nav__hamburger { display: flex; }
  .site-nav__links {
    position: fixed;
    top: 54px; left: 0; right: 0;
    background: rgba(14,17,23,0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px 20px;
    gap: 4px;
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s var(--ease), opacity 0.3s;
  }
  .site-nav__links.open {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }
  .site-nav__links a { padding: 11px 14px; font-size: 10px; }
  .site-nav__cta { justify-content: center; }
}

/* Breadcrumb / page title strip */
.page-strip {
  padding-top: calc(54px + 2px + 20px);
}