/* =========================================
   VARIABLES Y TEMAS (CLARO Y OSCURO)
   ========================================= */
   :root {
    --bg-main: #ffffff;
    --bg-alt: #fafafa;
    --bg-accent: #f1e6d6;
    --text-main: #131313;
    --text-muted: #5a6b84;
    --color-brand: #033c73;
    --header-bg: rgba(255, 255, 255, 0.95);
    --card-border: #d4d4d4;
    --font-titulos: 'Playfair Display', serif;
    --font-cuerpo: 'Lato', sans-serif;
    --espaciado-seccion: 5rem;
}

[data-theme="dark"] {
    --bg-main: #033c73; 
    --bg-alt: #022a52; 
    --bg-accent: #131313; 
    --text-main: #f1e6d6; 
    --text-muted: #d4d4d4; 
    --color-brand: #f1e6d6; 
    --header-bg: rgba(3, 60, 115, 0.95);
    --card-border: #5a6b84;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-cuerpo);
    color: var(--text-main);
    background-color: var(--bg-main);
    line-height: 1.6;
    transition: background-color 0.4s ease, color 0.4s ease;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--font-titulos); font-weight: 400; color: var(--text-main); }
h1 { font-size: 2.5rem; line-height: 1.1; margin-bottom: 1rem; }
h2 { font-size: 2rem; margin-bottom: 1.5rem; }
h3 { font-size: 1.5rem; margin-bottom: 1rem; color: var(--color-brand); }
p strong { color: var(--color-brand); }

.text-center { text-align: center; }
.bg-alt { background-color: var(--bg-alt); transition: background-color 0.4s ease; }
.bg-accent { background-color: var(--bg-accent); transition: background-color 0.4s ease; }

.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.section-padding { padding: var(--espaciado-seccion) 0; }

.btn-primary, .btn-nav {
    display: inline-block; padding: 1rem 2rem; background-color: var(--color-brand);
    color: var(--bg-main); text-decoration: none; text-transform: uppercase;
    letter-spacing: 1px; font-size: 0.85rem; font-weight: 700;
    border: 1px solid var(--color-brand); cursor: pointer; transition: all 0.3s ease;
}
.btn-primary:hover, .btn-nav:hover { background-color: transparent; color: var(--color-brand); }

header {
    position: fixed; width: 100%; top: 0; z-index: 1000;
    background-color: var(--header-bg); backdrop-filter: blur(5px);
    transition: box-shadow 0.3s ease, background-color 0.4s ease;
}
header.scrolled { box-shadow: 0 2px 10px rgba(0,0,0,0.2); }

.nav-container { display: flex; justify-content: space-between; align-items: center; padding: 1rem 5%; max-width: 1400px; margin: 0 auto; }
.logo-img { height: 50px; width: auto; border-radius: 50%; box-shadow: 0 4px 6px rgba(0,0,0,0.1); transition: transform 0.3s ease; }
.logo-img:hover { transform: scale(1.05); }

nav { display: none; }
nav a { text-decoration: none; color: var(--text-main); margin-left: 2rem; font-size: 0.9rem; letter-spacing: 0.5px; transition: color 0.3s ease; }
nav a:hover { color: var(--color-brand); }

.lang-toggle {
    font-weight: 700;
    margin-left: 2rem;
    padding: 0.3rem 0.6rem;
    border: 1px solid var(--text-main);
    border-radius: 4px;
    transition: all 0.3s ease;
}
.lang-toggle:hover {
    background-color: var(--text-main);
    color: var(--bg-main);
}

#theme-toggle { background: none; border: none; cursor: pointer; font-size: 1.2rem; margin-left: 1rem; padding: 0.5rem; display: inline-flex; align-items: center; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
:root:not([data-theme="dark"]) .icon-sun { display: none; } 

.mobile-menu-toggle { display: block; background: none; border: none; cursor: pointer; z-index: 1001; }
.mobile-menu-toggle span { display: block; width: 25px; height: 2px; background-color: var(--text-main); margin: 5px 0; transition: 0.3s; }

#hero { position: relative; height: 100vh; min-height: 600px; display: flex; align-items: center; justify-content: center; text-align: center; overflow: hidden; }
picture, .hero-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: -2; }
picture img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.4); z-index: -1; }
.hero-content { color: #fff; max-width: 800px; padding: 0 20px; z-index: 1; }
.hero-content h1 { color: #fff; }
.hero-content p { font-size: 1.2rem; margin-bottom: 2rem; font-weight: 300; }

.brand-overline {
    display: block;
    font-family: var(--font-cuerpo);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 4px; 
    color: #f1e6d6; 
    margin-bottom: 1rem;
    font-weight: 700;
}

/* Hover del botón en la imagen oscura de la portada (Modo Claro) */
#hero .btn-primary:hover {
    background-color: #f1e6d6;
    color: #131313;
    border-color: #f1e6d6;
}

/* Hover del botón de la portada (Modo Oscuro) */
[data-theme="dark"] #hero .btn-primary:hover {
    background-color: transparent;
    color: #f1e6d6;
    border-color: #f1e6d6;
}

.filosofia-grid { display: flex; flex-direction: column; gap: 3rem; }
.filosofia-imagen img { width: 100%; height: auto; object-fit: cover; border-radius: 4px; }

.galeria-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; margin-top: 3rem; }
.galeria-item { position: relative; overflow: hidden; aspect-ratio: 4/5; background-color: var(--card-border); }
.galeria-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.galeria-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(3, 60, 115, 0.85); display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.4s ease; }
.galeria-overlay span { color: #fff; font-family: var(--font-titulos); font-size: 1.5rem; text-align: center; padding: 1rem; transform: translateY(20px); transition: transform 0.4s ease; }
.galeria-item:hover img { transform: scale(1.05); }
.galeria-item:hover .galeria-overlay { opacity: 1; }
.galeria-item:hover .galeria-overlay span { transform: translateY(0); }

.servicios-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; margin-top: 3rem; }
.servicio-card { background: var(--bg-main); padding: 3rem 2rem; border: 1px solid var(--card-border); text-align: center; transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.4s ease; }
.servicio-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.1); }

.card-link {
    display: inline-block;
    margin-top: 1.5rem;
    color: var(--color-brand);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: transform 0.3s ease;
}
.card-link:hover {
    transform: translateX(5px);
}

.contacto-container { max-width: 600px; text-align: center; }
.contacto-form { margin-top: 3rem; text-align: left; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-size: 0.9rem; color: var(--text-muted); }
.form-group input, .form-group textarea { width: 100%; padding: 1rem; border: 1px solid var(--card-border); background: var(--bg-main); color: var(--text-main); font-family: var(--font-cuerpo); font-size: 1rem; transition: background-color 0.4s ease, color 0.4s ease; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--color-brand); }
.contacto-form .btn-primary { width: 100%; margin-top: 1rem; }

footer { padding: 2rem 0; font-size: 0.8rem; color: var(--text-muted); }

.reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s ease-out; }
.reveal.active { opacity: 1; transform: translateY(0); }

/* =========================================
   ESTILOS DEL MENÚ MÓVIL DESPLEGABLE
   ========================================= */
nav.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--header-bg);
    backdrop-filter: blur(5px);
    padding: 2rem 0;
    box-shadow: 0 10px 15px rgba(0,0,0,0.1);
    align-items: center;
    gap: 1.5rem;
}

nav.active a {
    margin: 0;
    font-size: 1.1rem;
}

nav.active .lang-toggle, nav.active #theme-toggle {
    margin: 0;
}

/* Animación de las 3 rayitas convirtiéndose en una "X" */
.mobile-menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-menu-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }


@media (min-width: 768px) {
    h1 { font-size: 4rem; } h2 { font-size: 2.5rem; }
    var(--espaciado-seccion) { 8rem; }
    .mobile-menu-toggle { display: none; }
    nav { display: flex; align-items: center; }
    .filosofia-grid { flex-direction: row; align-items: center; }
    .filosofia-texto, .filosofia-imagen { flex: 1; }
    .filosofia-texto { padding-right: 4rem; }
    .servicios-grid { grid-template-columns: 1fr 1fr; }
    .galeria-grid { grid-template-columns: repeat(3, 1fr); gap: 2rem; }
}