/* GUYZ - Layout (Navigation, Grid, Footer) */

/* ---------- Navigation ---------- */
.nav {
  position: fixed; top: 0; left: 0; width: 100%; z-index: var(--z-sticky);
  padding: var(--space-5) 0;
  transition: all var(--duration-normal) var(--ease-out);
}
.nav.scrolled {
  background: rgba(11, 11, 20, 0.85);
  backdrop-filter: blur(var(--blur-xl));
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-3) 0;
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--container-xl); margin: 0 auto;
  padding: 0 var(--container-padding);
}
.nav-logo {
  font-family: var(--font-display); font-size: var(--text-2xl);
  font-weight: var(--font-bold); letter-spacing: var(--tracking-wide);
  color: var(--color-text);
  transition: color var(--duration-fast);
}
.nav-logo span { color: var(--color-secondary); }
.nav-logo:hover { color: var(--color-secondary); }

.nav-links {
  display: flex; align-items: center; gap: var(--space-8);
}
.nav-link {
  font-size: var(--text-sm); font-weight: var(--font-medium);
  color: var(--color-text-secondary); position: relative;
  padding: var(--space-2) 0;
  transition: color var(--duration-fast);
}
.nav-link::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
  background: var(--color-secondary);
  transition: width var(--duration-normal) var(--ease-out);
}
.nav-link:hover, .nav-link.active { color: var(--color-text); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-cta { margin-left: var(--space-4); }

/* Mobile Menu */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  width: 28px; padding: 4px 0;
}
.nav-toggle span {
  display: block; height: 2px; background: var(--color-text);
  border-radius: 2px; transition: all var(--duration-normal) var(--ease-out);
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-mobile {
  display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
  background: rgba(11,11,20,0.97); backdrop-filter: blur(var(--blur-xl));
  z-index: var(--z-overlay); flex-direction: column; align-items: center;
  justify-content: center; gap: var(--space-8);
}
.nav-mobile.active { display: flex; }
.nav-mobile .nav-link { font-size: var(--text-2xl); color: var(--color-text); }

/* ---------- Masonry Grid ---------- */
.masonry-grid {
  columns: 3; column-gap: var(--space-6); padding: 0;
}
.masonry-grid .portfolio-card {
  break-inside: avoid; margin-bottom: var(--space-6);
  display: inline-block; width: 100%;
}

/* ---------- Footer ---------- */
.footer {
  padding: var(--space-16) 0 var(--space-8);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--space-12);
  margin-bottom: var(--space-12);
}
.footer-brand .footer-logo {
  font-family: var(--font-display); font-size: var(--text-3xl);
  font-weight: var(--font-bold); margin-bottom: var(--space-4);
}
.footer-brand .footer-logo span { color: var(--color-secondary); }
.footer-brand p {
  color: var(--color-text-muted); font-size: var(--text-sm);
  line-height: var(--leading-relaxed); max-width: 300px;
}
.footer-heading {
  font-size: var(--text-sm); font-weight: var(--font-semibold);
  text-transform: uppercase; letter-spacing: var(--tracking-widest);
  color: var(--color-secondary); margin-bottom: var(--space-6);
}
.footer-links li { margin-bottom: var(--space-3); }
.footer-links a {
  font-size: var(--text-sm); color: var(--color-text-muted);
  transition: color var(--duration-fast);
}
.footer-links a:hover { color: var(--color-text); }

.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: var(--space-8); border-top: 1px solid var(--color-border);
  font-size: var(--text-xs); color: var(--color-text-muted);
}
.footer-social { display: flex; gap: var(--space-4); }
.footer-social a {
  width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full); border: 1px solid var(--color-border);
  color: var(--color-text-muted); transition: all var(--duration-fast);
}
.footer-social a:hover { border-color: var(--color-secondary); color: var(--color-secondary); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .masonry-grid { columns: 2; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .masonry-grid { columns: 1; column-gap: var(--space-4); }
  .masonry-grid .portfolio-card { margin-bottom: var(--space-4); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer-bottom { flex-direction: column; gap: var(--space-4); text-align: center; }
}