/* ==========================================================================
   INSTALACIONES ÁLVAREZ
   HEADER.CSS (DEPURADO)
   ========================================================================== */

/* =========================================================
   CONTENEDOR DEL HEADER Y NAVEGACIÓN
   ========================================================= */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1.25rem 0;
    transition: padding 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                background-color 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: padding;
}

.site-header.scrolled {
    padding: 0.6rem 0;
    background-color: rgba(11, 15, 25, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

/* ==========================================================================
   CABECERA Y NAVEGACIÓN (CENTRADO VERTICAL ABSOLUTO Y LOGO GRANDE)
   ========================================================================== */

/* Cabecera principal */
.site-header {
    width: 100%;
    display: flex;
    align-items: center;
}

/* Contenedor principal */
.header-container {
    display: flex;
    align-items: center;        /* Centra verticalmente todos los elementos */
    justify-content: flex-start; /* Todo alineado a la izquierda */
    gap: 40px;                  /* Distancia entre el logo y el menú */
    width: 100%;
    padding-top: 12px;
    padding-bottom: 12px;
}

/* 1. Logo */
.brand {
    display: inline-flex;
    align-items: center;
    line-height: 0;
    flex-shrink: 0;             /* Evita que el logo cambie de tamaño */
}

.brand-logo {
    display: block;
    height: 65px;               /* Tamaño del logo */
    width: auto;
    object-fit: contain;
}

/* 2. Navegación Desktop - Centrado absoluto en altura */
.main-nav {
    display: flex;
    align-items: center;        /* Centra los botones verticalmente */
    align-self: center;         /* Fuerza a la navegación a centrarse respecto al logo */
    height: 100%;
    margin: 0;
    margin-right: auto;        /* Empuja el menú móvil al final */
    padding: 0;
}

/* 3. Enlaces del menú */
.main-nav .nav-link {
    display: inline-flex;
    align-items: center;        /* Centra el texto dentro del botón */
    justify-content: center;
    height: 40px;               /* Altura fija para centrado perfecto */
    padding: 0 14px;            /* Espacio horizontal */
    margin: 0;
    line-height: 1;             /* Elimina el desfase vertical de la fuente */
    position: relative;
    color: var(--color-text-muted, #718496);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    transition: color 0.25s ease;
}

/* Estados al pasar el ratón y activo */
.main-nav .nav-link:hover,
.main-nav .nav-link.active {
    color: #ffffff;
}

/* Indicador amarillo inferior */
.main-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;                  /* Se coloca en la base exacta del enlace */
    left: 14px;
    right: 14px;
    height: 3px;
    background-color: var(--color-yellow, #cccc00);
    border-radius: 2px;
}

/* 4. Botón Menú Móvil */
.mobile-menu-button {
    display: flex;
    align-items: center;
    justify-content: center;
    align-self: center;
    margin-left: auto;
}

/* =========================================================
   LOGOTIPO
   ========================================================= */

.brand {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.brand-logo {
    height: 140px;
    width: auto;
    object-fit: contain;
    transition: height 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s ease;
    will-change: height;
}

.site-header.scrolled .brand-logo {
    height: 90px;
}

.brand-logo:hover {
    transform: scale(1.02);
}

/* =========================================================
   NAVEGACIÓN ESCRITORIO
   ========================================================= */

.main-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    position: relative;
    padding: 0.5rem 0;
    color: var(--color-text-secondary, #94a3b8);
    font-size: var(--text-base, 1.125rem);
    font-weight: 800;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-white, #ffffff);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-gold, var(--accent-yellow, #c8ff00));
    border-radius: var(--radius-pill, 9999px);
}

/* BOTÓN CTA EN HEADER */

.header-cta {
    padding: 0.65rem 1.25rem;
    color: var(--color-blue, #38bdf8);
    background-color: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: var(--radius-md, 8px);
    font-size: var(--text-sm, 0.875rem);
    font-weight: 700;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.header-cta:hover {
    color: var(--color-navy, #0b0f19);
    background-color: var(--color-blue, #38bdf8);
    border-color: var(--color-blue, #38bdf8);
}

/* =========================================================
   MENÚ Y BOTÓN MÓVIL
   ========================================================= */

.mobile-menu-button {
    display: none;
    padding: 0.5rem;
    color: var(--color-white, #ffffff);
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    padding: 1.5rem;
    background-color: var(--color-navy, #0b0f19);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu nav {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.mobile-nav-link {
    color: var(--color-white, #ffffff);
    font-size: 1.1rem;
    font-weight: 600;
}

.mobile-nav-cta {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0.85rem;
    color: var(--color-navy, #0b0f19);
    background-color: var(--color-gold, var(--accent-yellow, #c8ff00));
    border-radius: var(--radius-md, 8px);
    font-weight: 700;
    text-align: center;
}

/* =========================================================
   ADAPTACIÓN MÓVIL (MEDIA QUERIES)
   ========================================================= */

@media (max-width: 868px) {
    .main-nav,
    .header-cta {
        display: none;
    }

    .mobile-menu-button {
        display: block;
    }

    .brand-logo {
        height: 100px;
    }

    .site-header.scrolled .brand-logo {
        height: 75px;
    }
}