/* ==========================
    VARIABLES
========================== */

:root{
    /* ===== Colores de marca ===== */
    --color-principal: #0E9EC7;
    --color-secundario: #0B87AA;

    /* ===== Colores de interfaz ===== */
    --color-blanco: #FFFFFF;
    --color-fondo: #F5F7FA;

    /* ===== Texto ===== */
    --color-texto: #333333;
    --color-texto-secundario: #666666;
}


/* ==========================
    RESET
========================== */
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Tahoma', sans-serif;
}

/* ==========================
    ESTILOS GENERALES
========================== */

body{
    line-height: 1.6;
    color: var(--color-texto);
    background-color: var(--color-fondo);
}

html {
    scroll-behavior: smooth;
}


/* ==========================
    LAYOUT
========================== */

.container{
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}


/* ==========================
    HEADER
========================== */
header{
    background: var(--color-blanco);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    position: relative;
}

.logo{
    font-size: 1.6rem;
    font-weight: bold;
    color: var(--color-principal);
    letter-spacing: 0.5px;
}

/* Botón de Menú Hamburguesa (oculto en PC) */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-principal);
    cursor: pointer;
}

.nav-links{
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a{
    text-decoration: none;
    color: var(--color-texto);
    font-weight: bold;
    transition: 0.3s ease;
    position: relative;
}

.nav-links a:hover{
    color: var(--color-principal);
}

.nav-links a::after{
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    left: 0;
    bottom: -5px;
    background: var(--color-principal);
    transition: width 0.3s ease;
}

.nav-links a:hover::after{
    width: 100%;
}


/* ==========================
    HERO
========================== */
#inicio{
    min-height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.45), rgba(0,0,0,0.45)),
                url('../img/Portada.png');
    opacity: 1;
    transform: translateY(0);
    background-size: cover;
    background-position: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--color-blanco);
    padding: 2rem;
    position: relative;
    overflow: hidden;
    scroll-margin-top: 100px;
}

#inicio::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 120px;
}

#inicio h1{
    font-size: 4rem;
    max-width: 800px;
    margin-bottom: 1rem;
    text-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

#inicio p{
    font-size: 1.2rem;
    max-width: 800px;
    text-align: center;
}

.cta-button{
    margin-top: 2rem;
    padding: 1rem 2rem;
    background: var(--color-principal);
    color: var(--color-blanco);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 15px rgba(14,158,199,0.3);
}

.cta-button:hover{
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(14,158,199,0.4);
    background: var(--color-secundario);
}

.us{
    padding: 8rem 2rem;
    font-size: 1.3rem;
    color: var(--color-texto);
    scroll-margin-top: 100px;
}

.qs-card{
    background: var(--color-blanco);
    border-radius: 16px;
    padding: 1rem;
    box-shadow: 0 8px 20px rgba(0,0,0,.08);
}

.qs-body{
    margin-top:0rem;
    text-align:left;
}

.us h2{
    padding-bottom: 2rem;
    font-size: 2.2rem;
    color: var(--color-texto);
    text-align: left;
}

.nosotros{
    background-size: cover;
    background-position: center;
    opacity: 1;
    transform: translateY(0);
    overflow: hidden;
}

.nosotros::before{
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 250px;
    z-index: 1;
}


/* ==========================
    SERVICIOS
========================== */
#servicios{
    padding: 6rem 0;
    scroll-margin-top: 100px;
}

#servicios h2{
    text-align: left;
    font-size: 2.2rem;
    margin-bottom: 3rem;
    color: var(--color-texto);
}

.servicios-card{
    background: var(--color-blanco);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 20px rgba(0,0,0,.08);
}

.servicios-card:hover{
    transform: translateY(-8px);
    box-shadow: 0 14px 30px rgba(0,0,0,0.15);
}

.card-header{
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:1rem;
}

.card-header img{
    width:40px;
    height:40px;
    object-fit:contain;
}

.card-body{
    margin-top:1.5rem;
    text-align:center;
}

.card-list{
    margin-top:1.5rem;
    text-align:left;
}

.servicios-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}


/* ==========================
    PROYECTOS
========================== */
#proyectos{
    padding: 5rem 2rem;
    scroll-margin-top: 100px;
}

#proyectos h2{
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 3rem;
    color: var(--color-texto);
}

.proyectos-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.proyectos-card{
    background: var(--color-blanco);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: all 0.35s ease;
}

.proyectos-card:hover{
    transform: translateY(-8px);
    box-shadow: 0 14px 30px rgba(0,0,0,0.15);
}

.proyectos-card img{
    width: 100%;
    height: 240px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.proyectos-card:hover img{
    transform: scale(1.05);
}

.proyectos-card h3{
    padding: 1rem 1rem 0.5rem;
    color: #222;
    font-size: 1.3rem;
}

.proyectos-card h4{
    padding: 0 1rem;
    color: var(--color-texto-secundario);
}

.ingenieria{
    color: var(--color-principal);
    font-weight: bold;
    padding: 1rem;
}

.descripcion{
    padding: 0 1rem 1rem;
    color: var(--color-texto-secundario);
}

.proyectos-card button{
    margin: 0 1rem 1.5rem;
    padding: 0.8rem 1.5rem;
    background: #cf3c3c;
    color: var(--color-blanco);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.proyectos-card button:hover{
    background: #ff0000;
    transform: scale(1.05);
}


/* ==========================
    FOOTER
========================== */
footer{
    background: #1e1e1e;
    color: white;
    padding: 4rem 2rem;
    text-align: center;
}

footer h2{
    margin-bottom: 1rem;
    font-size: 2rem;
}

footer p{
    color: #d1d1d1;
    margin: 0.4rem 0;
}


/* ==========================
    CONTACTO
========================== */
.contacto{
    background: linear-gradient(135deg, var(--color-principal), var(--color-secundario));
    color: var(--color-blanco);
    padding: 5rem 2rem;
    text-align: center;
    margin-top: 4rem;
    box-shadow: 0 -8px 20px rgba(0,0,0,0.08);
}

.contacto img{
    width:40px;
    height:40px;
    object-fit:contain;
}

.contacto-body{
    text-align: center;
}

.contacto h2{
    font-size: 2.5rem;
    margin-bottom: 2rem;
    letter-spacing: 1px;
}

.contacto h3{
    font-size: 1.1rem;
    margin: 0.8rem 0;
    transition: all 0.3s ease;
}

.contacto h3:hover{
    transform: scale(1.03);
    opacity: 0.9;
}

.developed{
    text-align: right;
    color: var(--color-fondo);
    font-style: italic;
    background: linear-gradient(135deg, var(--color-principal), var(--color-secundario));
}

.nombre{
    font-weight: bold;
    font-size: 1.3rem;
}

.telefono,
.correo,
.direccion{
    color: rgba(255,255,255,0.95);
}

.correo:hover,
.telefono:hover{
    text-decoration: underline;
    cursor: pointer;
}


/* ==========================
    RESPONSIVE (MÓVILES)
========================== */
@media (max-width: 768px){
    nav{
        flex-direction: row;
        justify-content: space-between;
    }

    .menu-toggle {
        display: block; /* Muestra el botón ☰ en móviles */
    }

    .nav-links{
        display: none; /* Oculta los enlaces por defecto */
        flex-direction: column;
        gap: 1.5rem;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--color-blanco);
        padding: 2rem;
        text-align: center;
        box-shadow: 0 8px 12px rgba(0,0,0,0.1);
    }

    /* Se despliega cuando le diste clic al menú hamburguesa */
    .nav-links.active{
        display: flex;
    }

    #inicio h1{
        font-size: 2.5rem;
    }

    #inicio p{
        font-size: 1rem;
        text-align: center;  
    }

    .proyectos-grid{
        grid-template-columns: 1fr;
    }
}