/* ======================================================= */
/* * 1. VARIABLES Y RESETEO */
/* ======================================================= */

:root {
    --color-principal-blue: #0051BA;
    --color-acento-blue: #75B2DD;
    --color-light-blue: #A8CEE2;
    --color-dark-blue: #0A192F;
    --color-reptil-green: #75B2DD;
    --color-fondo: #F4F6F8;
    --color-texto: #333333;
    --color-claro: white;
    --color-error: #CC0000;
}

html, body {
    height: 100%;
    width: 100%;
    overflow-x: hidden; /*! CAMBIO: Evita el desborde horizontal */
}

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

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    background-color: var(--color-dark-blue); /*! CAMBIO: Fondo oscuro para evitar flash blanco */
    color: var(--color-texto);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ======================================================= */
/* * 2. ENCABEZADO Y ESTRUCTURA PRINCIPAL */
/* ======================================================= */

header {
    background-color: rgba(10, 25, 47, 0.85); /* Usamos el color --color-dark-blue con transparencia */
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3); /* Sombra suave para darle profundidad */
    padding: 0;
    text-align: center;
    z-index: 100;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    transition: background-color 0.3s ease;
}

header h1 {
    font-size: 3.2em;
    font-weight: 700;
    letter-spacing: 4px;
    padding: 20px 0;
    color: var(--color-principal-blue);
    text-shadow: 3px 3px var(--color-dark-blue);
}

main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

/* ======================================================= */
/* * 3. CONTENEDOR AJAX Y FONDO (HERO) */
/* ======================================================= */

#content-area {
    transition: opacity 0.3s ease-in-out;
    width: 100%;
    flex-grow: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    opacity: 1;
}

/*! CAMBIO CLAVE: #content-area AHORA ES EL ÚNICO RESPONSABLE DEL FONDO */
#content-area.hero {
    min-height: 100vh;
    background-image: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('../images/fondo-reptiles.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    align-items: center; /* Por defecto, el contenido está centrado verticalmente */
    padding: 120px 20px 40px; /* Padding para no chocar con header/footer */
}

/*! NUEVA CLASE: Para páginas como catálogo, que se alinean arriba */
#content-area.hero-top-align {
    align-items: flex-start; /* Alinea el contenido arriba */
}

/* ======================================================= */
/* * 4. ESTILOS DE TARJETAS (INTRO, CATÁLOGO, CONTACTO) */
/* ======================================================= */

.intro-card-container, .catalogo-container, .contact-grid {
    width: 100%; /* Ocupan todo el ancho disponible dentro del padding del hero */
}

/* Estilo general para las tarjetas (Intro) */
.intro-card {
    background: rgba(68, 68, 68, 0.85);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--color-light-blue);
    transition: transform 0.4s ease;
    max-width: 650px;
    color: var(--color-claro);
    text-align: center;
    margin: 0 auto; /* Centra la tarjeta horizontalmente */
}

.intro-card:hover {
    transform: translateY(-8px);
}

.intro-card h2 {
    color: var(--color-principal-blue);
    margin-bottom: 20px;
    font-size: 2.2em;
    border-bottom: 2px solid var(--color-principal-blue);
    padding-bottom: 10px;
    display: inline-block;
}

.intro-card p {
    margin-bottom: 30px;
    font-size: 1.1em;
    color: inherit;
}

/* --- Estilos para el Catálogo (Contenedor Oscuro) --- */
.catalogo-container {
    background-color: rgba(68, 68, 68, 0.85);
    padding: 40px 20px;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
    border: 3px solid var(--color-principal-blue);
    max-width: 900px;
    margin: 0 auto; /* Centrado horizontal */
    color: var(--color-claro);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.catalogo-header { text-align: center; }
.catalogo-header h2 {
    color: var(--color-principal-blue);
    font-size: 2.5em;
    margin-bottom: 15px;
    border-bottom: 2px solid var(--color-principal-blue);
    padding-bottom: 10px;
    display: inline-block;
}

.reptil-card {
    display: flex;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    color: var(--color-claro);
    transition: transform 0.3s ease;
    align-items: center;
}
.reptil-card:hover { transform: translateY(-5px); }
.reptil-image {
    flex: 0 0 200px;
    height: 150px;
    background-color: var(--color-dark-blue);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 1.2em;
    border-right: 2px solid var(--color-principal-blue);
    background-size: cover;
    background-position: center;
}
.reptil-info { flex-grow: 1; padding: 20px; }
.reptil-info h3 { color: var(--color-acento-blue); margin-bottom: 10px; font-size: 1.5em; }
.reptil-info p { font-size: 0.95em; margin-bottom: 15px; }
.btn-small { padding: 8px 15px; font-size: 0.8em; }

/* --- Estilos para Contacto --- */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    background-color: rgba(68, 68, 68, 0.85);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
    border: 3px solid var(--color-principal-blue);
    max-width: 1000px;
    margin: 0 auto; /* Centrado Horizontal */
    color: var(--color-claro);
    align-items: start;
}

.contact-header { grid-column: 1 / -1; text-align: center; margin-bottom: 20px; }
.contact-header h2 { color: var(--color-principal-blue); font-size: 2.5em; border-bottom: 2px solid var(--color-principal-blue); padding-bottom: 10px; display: inline-block; }
.contact-info h3, .purchase-process h3 { color: var(--color-acento-blue); margin-bottom: 20px; font-size: 1.8em; }
.contact-info-block { display: flex; align-items: center; gap: 15px; margin-bottom: 15px; background-color: var(--color-claro); padding: 15px; border-radius: 8px; box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2); color: var(--color-texto); border-left: 5px solid var(--color-principal-blue); }
.contact-info-block i { font-size: 1.8em; color: var(--color-principal-blue); }
.contact-info-block p { margin: 0; font-size: 1em; }
.purchase-process ol { list-style: none; padding: 0; }
.purchase-process li { margin-bottom: 15px; background-color: rgba(255, 255, 255, 0.1); padding: 15px; border-radius: 8px; border-left: 4px solid var(--color-acento-blue); }
.purchase-process li strong { color: var(--color-acento-blue); }
.purchase-process li p { margin: 0; }
.contact-footer { grid-column: 1 / -1; text-align: center; margin-top: 30px; }
.contact-footer p { font-size: 1.1em; margin-bottom: 20px; }
.btn-contact { background-color: var(--color-reptil-green); }
.btn-contact:hover { background-color: #5aa4cc; }

/* --- Estilos para la página de administración --- */
.login-form { display: flex; flex-direction: column; gap: 15px; max-width: 400px; margin: 0 auto; padding: 20px; background: rgba(255, 255, 255, 0.1); border-radius: 8px; border: 1px solid var(--color-light-blue); }
.login-form .form-group { text-align: left; }
.login-form label { display: block; margin-bottom: 5px; color: var(--color-claro); font-weight: 700; }
.login-form input[type="text"], .login-form input[type="password"] { width: 100%; padding: 10px; border: 1px solid var(--color-acento-blue); border-radius: 5px; background-color: rgba(255, 255, 255, 0.9); color: var(--color-texto); font-size: 1em; }

/* ======================================================= */
/* * 5. BOTONES Y PANEL FLOTANTE */
/* ======================================================= */

.btn { display: inline-block; opacity: 0.85; background-color: var(--color-principal-blue); color: var(--color-claro); text-decoration: none; padding: 15px 30px; border-radius: 8px; font-weight: 700; letter-spacing: 1px; transition: background-color 0.3s ease, transform 0.3s ease; }
.btn:hover { background-color: var(--color-principal-blue); transform: scale(1.05); }

.floating-panel { position: fixed; top: 50%; right: 20px; transform: translateY(-50%); display: flex; flex-direction: column; gap: 15px; z-index: 1000; }
.panel-btn { display: flex; justify-content: center; align-items: center; width: 60px; height: 60px; background-color: var(--color-dark-blue); color: var(--color-claro); opacity: 0.85; border-radius: 50%; box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4); font-size: 1.8em; transition: background-color 0.3s ease, transform 0.3s ease; }
.panel-btn:hover { background-color: var(--color-principal-blue); transform: scale(1.1) rotate(5deg); }

/* ======================================================= */
/* * 7. PIE DE PÁGINA (FOOTER) */
/* ======================================================= */

footer {
    background-color: var(--color-texto);
    color: var(--color-claro);
    text-align: center;
    padding: 20px;
    font-size: 0.9em;
    flex-shrink: 0;
    position: relative;
    z-index: 100; /*! CAMBIO: Footer también siempre encima */
    margin-top: auto;
}

.social-icons { margin-top: 10px; }
.social-icons a { color: var(--color-claro); font-size: 1.8em; margin: 0 15px; transition: color 0.3s ease; }
.social-icons a:hover { color: var(--color-principal-blue); }

/* ======================================================= */
/* * 8. MEDIA QUERIES (DISEÑO RESPONSIVE) */
/* ======================================================= */

@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
        padding: 15px 0;
    }

    /*! CAMBIO CLAVE: Soluciona el fondo y el traslape */
    #content-area.hero {
        background-attachment: scroll; /* Evita el salto en móviles */
        padding: 80px 15px 40px; /* Padding para header y espacio inferior */
    }

    .intro-card {
        padding: 25px 20px;
        width: 100%;
    }
    .intro-card h2 { font-size: 1.8em; }
    .intro-card p { font-size: 1em; }
    
    .catalogo-container, .contact-grid {
        padding: 25px 15px;
        width: 100%;
    }
    
    .reptil-card { flex-direction: column; text-align: center; }
    .reptil-image { width: 100%; height: 150px; border-right: none; border-bottom: 2px solid var(--color-principal-blue); }

    .floating-panel { right: 10px; gap: 10px; }
    .panel-btn { width: 50px; height: 50px; font-size: 1.5em; }

    footer { padding: 15px; font-size: 0.9em; }
}