/* --- Variables de Diseño y Colores (Inspiración Bandera de Córdoba) --- */
:root {
    --cba-red: #D51A2B;       /* Rojo punzó */
    --cba-blue: #00A3E0;      /* Azul celeste institucional */
    --cba-white: #FFFFFF;
    --dark-bg: #111827;       /* Gris casi negro ultra moderno */
    --text-color: #374151;
    --light-bg: #F9FAFB;      /* El gris exacto de las secciones */
    --cba-yellow: #F5C100;    /* Amarillo Sol de la bandera */
    --font-title: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* --- Reseteo Básico --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--cba-white);
    -webkit-font-smoothing: antialiased;
}

/* --- Encabezado & Menú Córdoba Style --- */
.main-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.header-band {
    height: 5px;
    background: linear-gradient(90deg, 
        var(--cba-red) 0%, var(--cba-red) 33%, 
        var(--cba-yellow) 33%, var(--cba-yellow) 36%, 
        var(--cba-white) 36%, var(--cba-white) 64%, 
        var(--cba-blue) 64%, var(--cba-blue) 100%);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
}

.brand-name {
    font-family: var(--font-title);
    font-weight: 800;
    font-size: 22px;
    letter-spacing: 1px;
    color: var(--dark-bg);
}

.brand-name span {
    color: var(--cba-blue);
}

/* --- Ajustes de Navegación Estructural --- */
.menu-toggle {
    display: block;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark-bg);
    cursor: pointer;
    padding: 5px;
    transition: color 0.3s;
}

.menu-toggle:hover {
    color: var(--cba-blue);
}

.nav-menu {
    display: none; 
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    padding: 10px 20px 20px;
}

.nav-menu.active {
    display: block !important;
}

.nav-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    width: 100%;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 16px;
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid #E5E7EB;
    transition: color 0.2s ease;
}

.nav-menu a:hover {
    color: var(--cba-blue);
}

/* --- ESTILO DEL SUBMENÚ DESPLEGABLE (Oculto por defecto en celular) --- */
.dropdown-menu {
    display: none !important; /* Arranca cerrado obligatoriamente */
    position: static;
    width: 100%;
    background-color: var(--light-bg);
    border-top: 3px solid var(--cba-yellow);
    padding: 10px 0 10px 15px;
    margin-top: 5px;
    border-radius: 6px;
    list-style: none;
}

/* Muestra el submenú ordenadamente hacia abajo en lista */
.dropdown-menu.active {
    display: block !important;
}

.dropdown-menu li {
    display: block !important;
    width: 100% !important;
}

.dropdown-menu a {
    display: block !important;
    width: 100% !important;
    padding: 8px 0 !important;
    border-bottom: 1px solid #E5E7EB !important;
}

.dropdown-menu li:last-child a {
    border-bottom: none !important;
}

/* --- Animación de la Flechita --- */
.arrow-icon {
    font-size: 12px;
    margin-left: 6px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
}

.arrow-icon.rotate {
    transform: rotate(180deg);
}

/* --- Botón WhatsApp Flotante --- */
.whatsapp-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #25D366;
    color: white;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 28px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
    z-index: 2000;
    text-decoration: none;
    touch-action: manipulation; 
}

/* --- Secciones Interfaz Mobile-First --- */
.hero {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4ecf7 100%);
    padding: 60px 20px;
    text-align: center;
}

.hero h1 {
    font-family: var(--font-title);
    font-size: 32px;
    line-height: 1.2;
    color: var(--dark-bg);
    margin-bottom: 15px;
}

.hero p {
    font-size: 16px;
}

.btn-primary {
    display: block;
    max-width: 280px;
    margin: 25px auto 0;
    padding: 15px 30px;
    background-color: var(--cba-blue);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-family: var(--font-title);
    font-weight: 600;
    font-size: 16px;
    box-shadow: 0 4px 10px rgba(0, 163, 224, 0.3);
}

.section-padding {
    padding: 50px 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

h2 {
    font-family: var(--font-title);
    font-size: 26px;
    margin-bottom: 25px;
    text-align: center;
}

h2::after {
    content: '';
    display: block;
    width: 40px;
    height: 3px;
    background-color: var(--cba-red);
    margin: 8px auto 0;
}

.bg-light { background-color: var(--light-bg); }

/* --- Contenedores de Servicios --- */
.section-subtitle {
    font-size: 16px;
    margin-bottom: 40px;
    color: #6B7280;
    padding: 0 10px;
    text-align: center;
}

.services-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 10px;
}

.service-card {
    background-color: var(--cba-white);
    padding: 30px 25px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
    border: 1px solid #E5E7EB;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.08);
    border-color: var(--cba-blue);
}

.service-icon {
    font-size: 36px;
    color: var(--cba-blue);
    margin-bottom: 15px;
    transition: color 0.3s ease;
}

.service-card:hover .service-icon {
    color: var(--cba-red);
}

.service-card h3 {
    font-family: var(--font-title);
    font-size: 18px;
    color: var(--dark-bg);
    margin-bottom: 12px;
    font-weight: 700;
}

.service-card p {
    font-size: 14.5px;
    color: #4B5563;
    line-height: 1.6;
}

/* --- Sección Portafolio --- */
.portfolio-grid {
    display: flex;
    flex-direction: column;
    gap: 30px;
    padding: 10px 0;
}

.portfolio-item {
    background-color: var(--cba-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    border: 1px solid #E5E7EB;
    text-align: left;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.portfolio-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.08);
}

.portfolio-img-wrapper {
    position: relative;
    width: 100%;
    height: 220px;
    background-color: #E5E7EB;
}

.portfolio-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.portfolio-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background-color: var(--dark-bg);
    color: var(--cba-white);
    padding: 6px 14px;
    font-size: 12px;
    font-family: var(--font-title);
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 20px;
    border-left: 3px solid var(--cba-blue);
    letter-spacing: 0.5px;
}

.portfolio-info {
    padding: 20px;
}

.portfolio-info h3 {
    font-family: var(--font-title);
    font-size: 18px;
    color: var(--dark-bg);
    margin-bottom: 10px;
    font-weight: 700;
}

.portfolio-info p {
    font-size: 14px;
    color: #4B5563;
    line-height: 1.5;
}

/* --- Formulario --- */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 15px;
}

.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 16px;
    border: 1px solid #D1D5DB;
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 16px;
    background-color: var(--cba-white);
}

.btn-submit {
    width: 100%;
    padding: 16px;
    background-color: var(--dark-bg);
    color: white;
    border: none;
    border-radius: 8px;
    font-family: var(--font-title);
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
}

/* --- Footer --- */
.main-footer {
    background-color: var(--dark-bg);
    color: #9CA3AF;
    padding: 40px 20px 20px;
    font-size: 15px;
}

.footer-container {
    display: flex;
    flex-direction: column;
    gap: 35px;
    text-align: center;
}

.main-footer h2, .main-footer h3 {
    color: var(--cba-white);
    font-family: var(--font-title);
    margin-bottom: 12px;
}

.footer-center ul {
    list-style: none;
}

.footer-center ul li {
    margin-bottom: 12px;
}

.footer-center a {
    color: #9CA3AF;
    text-decoration: none;
    display: inline-block;
    padding: 6px 0;
}

.essence {
    font-style: italic;
    line-height: 1.6;
}

.footer-socials {
    margin-top: 15px;
}

.footer-socials a {
    color: var(--cba-white);
    font-size: 24px;
    margin: 0 12px;
    display: inline-block;
}

.footer-bottom {
    border-top: 1px solid #374151;
    margin-top: 30px;
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
}

/* --- MEDIA QUERY: Pantallas Grandes (Computadoras) --- */
@media (min-width: 769px) {
    .menu-toggle {
        display: none; 
    }
    
    .nav-menu {
        display: block !important; 
        position: static;
        width: auto;
        padding: 0;
        background: none;
        box-shadow: none;
    }
    
    .nav-menu ul {
        flex-direction: row;
        justify-content: flex-end;
        align-items: center;
    }
    
    .nav-menu ul li {
        position: relative; /* Clave: contiene al submenú justo debajo de su botón */
        margin-left: 25px;
    }
    
    .nav-menu a {
        border-bottom: none;
        padding: 5px 0;
        font-size: 15px;
    }

    /* SUBMENÚ EN PC: Corregido para que inicie cerrado y no se desparrame por el head */
    .dropdown-menu {
        display: none !important; /* Asegura ocultarse por defecto en PC también */
        position: absolute !important; 
        top: 100%;
        left: 0;
        width: 260px !important; 
        box-shadow: 0 8px 20px rgba(0,0,0,0.1) !important; 
        z-index: 1010;
        background-color: var(--cba-white) !important; /* Blanco flotante clásico para contraste */
    }

    /* Activa el despliegue al recibir el trigger de JS */
    .dropdown-menu.active {
        display: block !important;
    }

    .hero { padding: 100px 20px; }
    .hero h1 { font-size: 46px; }
    .btn-primary { display: inline-block; margin-top: 25px; }
    
    .section-padding { padding: 80px 20px; }
    h2 { font-size: 32px; }
    
    .services-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
    
    .section-subtitle {
        font-size: 18px;
    }

    .portfolio-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
    
    .footer-container {
        display: grid;
        grid-template-columns: 1fr 1fr 1.5fr;
        gap: 40px;
        text-align: left;
    }
    .footer-right { text-align: right; }
    .footer-socials a { margin: 0 15px 0 0; }
}