/* ============================================
   CLIENTI360 — Layout (Navbar, Footer, Grid)
   ============================================ */

/* ---- NAVBAR ---- */
.navbar {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: var(--z-navbar);
  padding: var(--s-16) 0;
  background: rgba(13, 13, 13, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: padding var(--duration-normal);
}

.navbar.scrolled { padding: 10px 0; }

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--c-white);
  text-transform: uppercase;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.nav-logo__icon {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 8px;
  filter: drop-shadow(0 0 8px rgba(0, 212, 170, 0.3));
}

.nav-logo .logo-360 {
  color: var(--c-teal);
  text-shadow: 0 0 20px var(--c-teal-glow), 0 0 40px rgba(0, 212, 170, 0.2);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--s-32);
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-gray);
  transition: color var(--duration-normal);
}
.nav-links a:hover { color: var(--c-white); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px var(--s-24);
  background: var(--c-teal);
  color: var(--c-dark);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--duration-normal);
  box-shadow: 0 0 20px var(--c-teal-glow);
}
.nav-cta:hover {
  box-shadow: var(--shadow-teal-lg);
  transform: translateY(-1px);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: calc(var(--z-mobile-menu) + 1);
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: all var(--duration-normal);
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100vh;
  background: var(--c-overlay);
  z-index: var(--z-mobile-menu);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--s-32);
}

.mobile-menu.active { display: flex; }

.mobile-menu a {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: var(--c-white);
  transition: color var(--duration-normal);
}
.mobile-menu a:hover { color: var(--c-teal); }

/* ---- FOOTER ---- */
.footer {
  background: var(--c-surface);
  border-top: 1px solid var(--c-gray-dim);
  padding: var(--s-80) 0 var(--s-40);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--s-48);
  margin-bottom: var(--s-64);
}

.footer-brand p {
  font-size: var(--fs-body-sm);
  color: var(--c-gray);
  line-height: 1.7;
  margin-top: var(--s-16);
  max-width: 300px;
}

.footer-social {
  display: flex;
  gap: var(--s-16);
  margin-top: var(--s-24);
}

.footer-social a {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: var(--c-dark);
  border: 1px solid var(--c-gray-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all var(--duration-normal);
}
.footer-social a:hover {
  border-color: var(--c-teal);
  color: var(--c-teal);
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: var(--s-24);
  color: var(--c-white);
}

.footer-col a {
  display: block;
  font-size: var(--fs-body-sm);
  color: var(--c-gray);
  margin-bottom: var(--s-12);
  transition: color var(--duration-fast);
}
.footer-col a:hover { color: var(--c-teal); }

.footer-bottom {
  border-top: 1px solid var(--c-gray-dim);
  padding-top: var(--s-32);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-caption);
  color: var(--c-gray);
  flex-wrap: wrap;
  gap: var(--s-16);
}

.footer-bottom a { color: var(--c-gray); }
.footer-bottom a:hover { color: var(--c-teal); }

/* ---- GRID UTILITIES ---- */
.grid { display: grid; gap: var(--s-24); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.grid--split {
  grid-template-columns: 1fr 1fr;
  gap: var(--s-64);
  align-items: center;
}

.grid--split-reversed { direction: rtl; }
.grid--split-reversed > * { direction: ltr; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--split { gap: var(--s-40); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .hamburger { display: flex; }

  .section { padding: var(--s-80) 0; }
  .section--compact { padding: var(--s-56) 0; }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
  .grid--split { grid-template-columns: 1fr; }
  .grid--split-reversed { direction: ltr; }

  .footer-grid { grid-template-columns: 1fr; gap: var(--s-32); }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  :root { --gutter: 16px; }
  .btn { padding: 14px 24px; font-size: 15px; }
  .btn--lg { padding: 16px 28px; font-size: 16px; }
}