/* =====================================================
   HEADER Y NAVEGACIÓN - FLEXBOX LAYOUT
   ===================================================== */

.main-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) 0;
  border-bottom: 2px solid var(--color-primary);
  margin-bottom: var(--spacing-xl);
  position: relative;
  background: rgba(18, 18, 42, 0.8);
  backdrop-filter: blur(10px);
  border-radius: 0 0 var(--spacing-sm) var(--spacing-sm);
}

/* Logo con Flexbox */
.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-heading);
  color: var(--color-primary);
  transition: transform var(--transition-normal);
}

.logo:hover {
  transform: scale(1.05);
  color: var(--color-primary);
}

.logo i {
  font-size: 2rem;
  color: var(--color-secondary);
}

/* Navegación Principal - Flexbox */
.main-nav {
  flex: 1;
  display: flex;
  justify-content: right;
}

.nav-list {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: var(--spacing-xl);
  align-items: center;
}

/* Menú CSS3 con interacciones avanzadas */
.nav-list li {
  position: relative;
}

.nav-list li a {
  position: relative;
  padding: var(--spacing-sm) var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
  border-radius: var(--spacing-xs);
  transition: all var(--transition-normal);
  overflow: hidden;
}

/* Efecto de subrayado animado */
.nav-list li a::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--color-secondary),
    var(--color-primary)
  );
  transition: all var(--transition-normal);
  transform: translateX(-50%);
}

.nav-list li a:hover::before {
  width: 100%;
}

/* Efecto de fondo para hover */
.nav-list li a::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(0, 255, 194, 0.1),
    rgba(255, 71, 136, 0.1)
  );
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.nav-list li a:hover::after {
  opacity: 1;
}

/* Botón especial de deploy */
.nav-link-deploy {
  background: linear-gradient(
    135deg,
    var(--color-secondary),
    var(--color-tertiary)
  ) !important;
  padding: var(--spacing-sm) var(--spacing-md) !important;
  border-radius: var(--spacing-xs) !important;
  color: white !important;
  font-weight: bold !important;
  box-shadow: 0 4px 15px rgba(255, 71, 136, 0.3);
  transform: translateY(0);
  transition: all var(--transition-normal);
}

.nav-link-deploy:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 20px rgba(255, 71, 136, 0.4) !important;
  color: white !important;
}

/* Widget IMI - Flexbox Avanzado */
.imi-status-widget {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.9rem;
  background: linear-gradient(
    135deg,
    var(--color-surface-secondary),
    var(--color-surface)
  );
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--spacing-sm);
  border: 1px solid var(--color-primary);
  box-shadow: 0 4px 15px rgba(0, 255, 194, 0.2);
  transition: all var(--transition-normal);
}

.imi-status-widget:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 255, 194, 0.3);
}

.imi-label {
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.imi-bar-container {
  width: 100px;
  height: 12px;
  background: var(--color-surface);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(0, 255, 194, 0.3);
}

.imi-bar-fill {
  height: 100%;
  background: linear-gradient(
    90deg,
    var(--color-primary),
    var(--color-secondary)
  );
  transition: width var(--transition-slow);
  position: relative;
  box-shadow: 0 0 10px rgba(0, 255, 194, 0.5);
}

.imi-bar-fill::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: shimmer 2s infinite;
}

#icono_inicio_sesion {
  width: 32px;
  height: 32px;
  margin-right: 50px;
  filter: drop-shadow(0 0 5px rgba(255, 71, 136, 0.5));
  transition: transform var(--transition-normal);
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

#imi-percentage {
  font-weight: 700;
  color: var(--color-secondary);
  text-shadow: 0 0 10px rgba(255, 71, 136, 0.5);
}

/* ===========================
   Header & Navbar
   =========================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: saturate(1.2) blur(8px);
  background: color-mix(in srgb, var(--surface-2) 85%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--muted) 18%, transparent);
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}
.brand .logo {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
}
.brand strong {
  font-weight: 700;
  letter-spacing: 0.3px;
}

nav {
  margin-left: auto;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 14px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  text-decoration: none;
  color: var(--text);
}
.nav-link:hover,
.nav-link:focus-visible {
  background: color-mix(in srgb, var(--brand) 10%, var(--surface-2));
  outline: none;
  box-shadow: 0 0 0 3px rgba(91, 156, 255, 0.35);
}

.caret {
  width: 10px;
  height: 10px;
  display: inline-block;
  transform: translateY(1px);
}