/* ============================================================
   LAYOUT.CSS — Navigation, Footer, Containers, Grid
   Paradosso Production Website
   ============================================================ */

/* ---------- CONTAINER ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ---------- SECTIONS ---------- */
section {
  padding: 100px 0;
}

/* ---------- NAVIGATION ---------- */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.1rem 0;
  background: rgba(7, 8, 15, 0.8);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition-slow);
}

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

/* Logo */
.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #818cf8, #22d3ee);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  flex-shrink: 0;
}

/* Desktop nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-normal);
}

.nav-links a:hover {
  color: var(--text);
}

/* Nav CTA button */
.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  padding: 0.55rem 1.3rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: background var(--transition-normal),
              transform var(--transition-fast) !important;
}

.nav-cta:hover {
  background: var(--accent2) !important;
  transform: translateY(-1px);
}

/* Hamburger toggle */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition-slow),
              opacity var(--transition-slow);
}

/* Animated hamburger open state */
.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem 1.5rem;
  flex-direction: column;
  gap: 1.2rem;
}

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

.mobile-menu a {
  color: var(--muted);
  text-decoration: none;
  font-size: 1rem;
  transition: color var(--transition-normal);
}

.mobile-menu a:hover {
  color: var(--text);
}

/* ---------- FOOTER ---------- */
footer {
  border-top: 1px solid var(--border);
  padding: var(--space-lg) 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-brand p {
  font-size: 0.88rem;
  margin-top: var(--space-sm);
  max-width: 260px;
}

.footer-col h4 {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 1rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col ul a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color var(--transition-normal);
}

.footer-col ul a:hover {
  color: var(--text);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--muted);
}

/* ---------- SECTION SHARED HELPERS ---------- */
.section-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.8rem;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}

.section-header p {
  margin-top: 0.8rem;
  font-size: 1.05rem;
}

/* ---------- RESPONSIVE: LAYOUT ---------- */
@media (max-width: 900px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 700px) {
  .nav-links       { display: none; }
  .nav-cta-desktop { display: none; }
  .hamburger       { display: flex; }

  section {
    padding: 70px 0;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}