/* ============================================
   NAVBAR PREMIUM 2026 - ESTILOS CSS
   ============================================
   Diseño: Mobile First
   Inspiración: Apple, Tesla, Stripe
   Características: Minimalista, transiciones suaves, accesibilidad
   ============================================ */

/* ============================================
   VARIABLES (Usar las del proyecto principal)
   ============================================ */
:root {
    /* Si no existen en el proyecto principal, definir aquí */
    --navbar-height-mobile: 70px;
    --navbar-height-desktop: 80px;
    --navbar-transition: 250ms ease-in-out;
    --navbar-blur: 12px;
    --navbar-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    --navbar-shadow-scroll: 0 4px 30px rgba(0, 0, 0, 0.06);
}

/* ============================================
   RESET BASE PARA NAVBAR
   ============================================ */
.navbar {
    margin: 0;
    padding: 0;
    list-style: none;
}

/* ============================================
   NAVBAR CONTAINER - MOBILE FIRST
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: var(--navbar-height-mobile);
    
    /* Fondo inicial: transparente/claro */
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(var(--navbar-blur));
    -webkit-backdrop-filter: blur(var(--navbar-blur));
    
    /* Layout */
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    
    /* Z-index para estar encima de todo */
    z-index: 1003;
    
    /* Transiciones */
    transition: all var(--navbar-transition);
    
    /* Borde inferior inicial transparente */
    border-bottom: 1px solid transparent;
}

/* Estado scrolled - después de hacer scroll */
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--navbar-shadow);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

/* ============================================
   LOGO - IZQUIERDA
   ============================================ */
.navbar-logo {
    display: flex;
    align-items: center;
    z-index: 1003;
    text-decoration: none;
}

.logo-text {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-secondary);
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    transition: color var(--navbar-transition);
}

.navbar-logo:hover .logo-text {
    color: var(--color-primary);
}

/* ============================================
   BOTÓN HAMBURGUESA - DERECHA (Solo móvil)
   ============================================ */
.navbar-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1003;
    transition: background-color 150ms ease-in-out;
    border-radius: 8px;
}

.navbar-toggle:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.navbar-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Líneas del hamburguesa */
.hamburger-line {
    width: 22px;
    height: 2px;
    background-color: var(--color-gray-800);
    border-radius: 2px;
    transition: all var(--navbar-transition);
    transform-origin: center;
}

.hamburger-line:nth-child(1) {
    margin-bottom: 5px;
}

.hamburger-line:nth-child(2) {
    margin-bottom: 5px;
}

/* Estado activo - transformación a X */
.navbar-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
    margin-bottom: 0;
}

.navbar-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.navbar-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    margin-bottom: 0;
}

/* ============================================
   MENÚ DE NAVEGACIÓN - MOBILE
   ============================================ */
.navbar-menu {
    position: fixed;
    top: var(--navbar-height-mobile);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--navbar-height-mobile));
    
    background: #ffffff;
    
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    
    padding: 40px 20px;
    gap: 16px;
    
    overflow-y: auto;
    
    /* Animación: transform en lugar de display */
    transform: translateX(100%);
    transition: transform var(--navbar-transition);
    
    z-index: 1002;
}

/* Estado activo - menú visible */
.navbar-menu.active {
    transform: translateX(0);
}

/* Items del menú */
.navbar-menu li {
    width: 100%;
    max-width: 300px;
}

/* Enlaces del menú móvil */
.navbar-link,
.navbar-cta {
    display: block;
    width: 100%;
    text-align: center;
    
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-gray-800);
    
    padding: 18px 24px;
    border-radius: 12px;
    
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
    
    text-decoration: none;
    transition: all 150ms ease-in-out;
}

.navbar-link:hover,
.navbar-link:focus {
    background-color: var(--color-gray-200);
    color: var(--color-primary);
    transform: translateX(-4px);
}

.navbar-link:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Botón CTA en móvil */
.navbar-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white) !important;
    border: none;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.25);
    margin-top: 16px;
}

.navbar-cta:hover {
    transform: translateX(-4px) translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%) !important;
}

/* ============================================
   OVERLAY OSCURO (Solo móvil)
   ============================================ */
.navbar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    
    opacity: 0;
    visibility: hidden;
    transition: all var(--navbar-transition);
    
    z-index: 1001;
    pointer-events: none;
}

.navbar-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* ============================================
   BODY SCROLL LOCK
   ============================================ */
body.navbar-open {
    overflow: hidden;
}

/* ============================================
   TABLET (768px - 1023px)
   ============================================ */
@media (min-width: 768px) {
    .navbar {
        padding: 0 32px;
    }
    
    .logo-text {
        font-size: 1.1rem;
    }
    
    .navbar-menu {
        padding: 60px 40px;
    }
    
    .navbar-link,
    .navbar-cta {
        font-size: 1.35rem;
        padding: 20px 32px;
    }
}

/* ============================================
   DESKTOP (≥1024px) - PREMIUM LAYOUT
   ============================================ */
@media (min-width: 1024px) {
    .navbar {
        height: var(--navbar-height-desktop);
        padding: 0 48px;
        max-width: 1400px;
        left: 50%;
        transform: translateX(-50%);
        right: auto;
        border-radius: 0;
    }
    
    .navbar.scrolled {
        height: 75px;
        box-shadow: var(--navbar-shadow-scroll);
    }
    
    .logo-text {
        font-size: 1.25rem;
        letter-spacing: 0.5px;
    }
    
    /* Ocultar hamburguesa en desktop */
    .navbar-toggle {
        display: none;
    }
    
    /* Menú horizontal en desktop */
    .navbar-menu {
        position: static;
        
        width: auto;
        height: auto;
        
        transform: none;
        
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
        
        padding: 0;
        gap: 40px;
        
        background: transparent;
        
        overflow: visible;
        
        z-index: auto;
    }
    
    .navbar-menu li {
        width: auto;
        max-width: none;
    }
    
    /* Enlaces desktop */
    .navbar-link {
        font-size: 0.95rem;
        font-weight: 500;
        padding: 8px 0;
        color: var(--color-gray-600);
        position: relative;
        text-align: left;
        background: transparent;
        border: none;
        width: auto;
    }
    
    /* Línea inferior animada */
    .navbar-link::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 2px;
        background: var(--color-primary);
        transition: width var(--navbar-transition);
    }
    
    .navbar-link:hover::after,
    .navbar-link:focus::after {
        width: 100%;
    }
    
    .navbar-link:hover,
    .navbar-link:focus {
        color: var(--color-primary);
        background: transparent;
        transform: none;
    }
    
    /* CTA Button en desktop */
    .navbar-cta {
        margin-top: 0;
        padding: 10px 28px;
        font-size: 0.95rem;
        font-weight: 600;
        border-radius: 50px;
        box-shadow: 0 2px 10px rgba(37, 99, 235, 0.2);
        background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
        color: var(--color-white) !important;
        width: auto;
    }
    
    .navbar-cta::after {
        display: none;
    }
    
    .navbar-cta:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
        background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%) !important;
    }
    
    /* Ocultar overlay en desktop */
    .navbar-overlay {
        display: none;
    }
}

/* ============================================
   LARGE DESKTOP (≥1440px)
   ============================================ */
@media (min-width: 1440px) {
    .navbar {
        padding: 0 64px;
    }
    
    .navbar-menu {
        gap: 48px;
    }
    
    .navbar-link {
        font-size: 1rem;
    }
}

/* ============================================
   ACCESIBILIDAD - FOCUS VISIBLE
   ============================================ */
.navbar-link:focus-visible,
.navbar-cta:focus-visible,
.navbar-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============================================
   PREFERS-REDUCED-MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    .navbar,
    .navbar-menu,
    .navbar-overlay,
    .navbar-toggle,
    .hamburger-line,
    .navbar-link,
    .navbar-cta,
    .logo-text {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
    
    .navbar-menu {
        transform: none;
    }
    
    .navbar-menu.active {
        transform: none;
    }
}

/* ============================================
   PRINT
   ============================================ */
@media print {
    .navbar,
    .navbar-overlay {
        display: none;
    }
}