/* ===== NAVIGATION ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-main);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: background 0.3s ease;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.brand__logo {
  height: 32px;
  width: auto;
}

.nav__toggle {
  height: var(--tap-size);
  width: var(--tap-size);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--bg-main);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav__toggle:hover {
  border-color: var(--primary);
}

.nav__toggle-bars,
.nav__toggle-bars::before,
.nav__toggle-bars::after {
  position: absolute;
  width: 18px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
}

.nav__toggle-bars::before,
.nav__toggle-bars::after {
  content: "";
  left: 0;
}

.nav__toggle-bars::before {
  top: -6px;
}

.nav__toggle-bars::after {
  top: 6px;
}

.nav__drawer {
  position: fixed;
  inset: 64px 12px auto 12px;
  background: var(--bg-main);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 10px;
  display: none;
}

.nav.is-open .nav__drawer {
  display: block;
}

.nav__menu {
  list-style: none;
  margin: 0;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--tap-size);
  padding: 10px 12px;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 15px;
  transition: all 0.2s ease;
  border: 0;
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.nav__link:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.nav__link.is-active {
  color: var(--text-main);
}

.nav__link-btn {
  width: 100%;
  border: 0;
  background: transparent;
  cursor: pointer;
  text-align: left;
  font-weight: 700;
  font-size: 15px;
  padding: 10px 12px;
}

.has-submenu .submenu {
  list-style: none;
  margin: 6px 0 0;
  padding: 6px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(15, 23, 42, 0.03);
  display: none;
}

.has-submenu.is-open .submenu {
  display: block;
}

.submenu a {
  display: block;
  padding: 10px;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-main);
  font-weight: 700;
  font-size: 14px;
  transition: background 0.2s ease;
}

.submenu a:hover {
  background: rgba(15, 23, 42, 0.05);
}

@media (min-width: 980px) {
  .nav__toggle {
    display: none;
  }

  .nav__drawer {
    position: static;
    inset: auto;
    border: 0;
    box-shadow: none;
    padding: 0;
    display: block;
    background: transparent;
  }

  .nav__menu {
    flex-direction: row;
    align-items: center;
    gap: 14px;
    padding: 0;
  }

  .nav__link {
    min-height: 0;
    padding: 10px;
    font-weight: 600;
  }

  .has-submenu {
    position: relative;
  }

  .has-submenu .submenu {
    position: absolute;
    top: 44px;
    right: 0;
    min-width: 210px;
    background: var(--bg-main);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    display: none;
  }

  .has-submenu:hover .submenu {
    display: block;
  }
}

.btn--dark-mode {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  padding: 8px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  transition: var(--transition);
}

/* Mostrar/Ocultar iconos según el modo */
.dark-mode .icon-sun { display: block; }
.dark-mode .icon-moon { display: none; }
.icon-sun { display: none; }
.icon-moon { display: block; }