/* ================================================
   NAVBAR
   ================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  background: #000;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 15, 10, 0.96);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 2px 32px rgba(0,0,0,0.3);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--white);
}

.logo-img {
  height: 90px;
  width: auto;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(40, 178, 0, 0.4));
}

.footer .logo-img {
  height: 80px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--transition-fast);
}

.nav-links a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.08);
}

.btn-nav {
  background: linear-gradient(135deg, var(--primary-light), var(--primary)) !important;
  color: var(--white) !important;
  padding: 10px 20px !important;
  border-radius: 100px !important;
  font-weight: 600 !important;
  box-shadow: 0 4px 12px rgba(40, 178, 0, 0.4);
  margin-left: 8px;
}

.btn-nav:hover {
  background: rgba(255,255,255,0.08) !important;
  box-shadow: none !important;
  background: linear-gradient(135deg, var(--accent), var(--primary-light)) !important;
}

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

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

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

/* ---- Backdrop ---- */
.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  z-index: 998;
}

.nav-backdrop.open { display: block; }

/* ---- Navbar responsive — Tablet/Mobile (≤900px) ---- */
@media (max-width: 900px) {
  /* Al anular backdrop-filter evitamos que cambie el "containing block" y corte el menú al hacer scroll */
  .navbar, .navbar.scrolled {
    padding: 16px 0 !important;
    background: #000 !important;
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }

  .logo-img { height: 52px; overflow: hidden; }
  
  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: min(300px, 80vw);
    height: 100vh; /* Forzamos 100vh por seguridad extra */
    flex-direction: column;
    justify-content: center;
    background: rgba(10, 15, 10, 0.98);
    -webkit-backdrop-filter: blur(24px);
    backdrop-filter: blur(24px);
    padding: 32px 24px;
    transform: translateX(100%);
    visibility: hidden; /* Esto elimina el espacio en blanco al estar cerrado */
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), visibility 0s linear 0.35s;
    gap: 4px;
    z-index: 999;
  }

  .nav-links.open { 
    transform: translateX(0); 
    visibility: visible;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), visibility 0s linear 0s;
  }

  .nav-links a {
    padding: 16px 20px;
    font-size: 1.1rem;
    border-radius: var(--radius);
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }

  .btn-nav {
    margin-top: 12px;
    text-align: center;
    border-radius: var(--radius) !important;
    padding: 16px 20px !important;
  }
}