/* Hoja de Estilos para Terranova Finca Digital (Lanzamiento)
  Clases y selectores en inglés para buenas prácticas.
  Comentarios en español para claridad.
*/

/* ============================ */
/* Variables y Estilos Globales */
/* ============================ */
:root {
    /* Paleta de colores principal */
    --color-primary-green: #2E7D32; /* Verde Agro-Tech */
    --color-primary-dark: #1B5E20;  /* Verde oscuro para interacciones */
    --color-accent-gold: #FFAB00;   /* Dorado/Ámbar para acentos */
    --color-background-light: #F9F9F9; /* Gris muy claro para fondos */
    --color-background-medium: #FFFFFF; /* Blanco para tarjetas */
    --color-text-dark: #212121;     /* Negro suave para texto */
    --color-text-light: #FFFFFF;    /* Blanco para texto sobre fondos oscuros */
    
    /* Tipografía */
    --font-family-main: 'Poppins', sans-serif;

    /* Otros */
    --border-radius: 8px;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    --transition-main: all 0.3s ease;
}

/* Reseteo básico y configuración del 'box-sizing' */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth; /* Desplazamiento suave */
}

body {
    font-family: var(--font-family-main);
    color: var(--color-text-dark);
    line-height: 1.7;
    background-color: var(--color-background-medium);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================ */
/* Cabecera y Navegación        */
/* ============================ */
.main-header {
    padding: 20px 0;
    background-color: var(--color-background-medium);
    border-bottom: 1px solid #e0e0e0;
    position: sticky; /* Se queda fija al hacer scroll */
    top: 0;
    z-index: 1000;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-primary-green);
    text-decoration: none;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    font-weight: 600;
    color: var(--color-text-dark);
    text-decoration: none;
    transition: var(--transition-main);
}

.nav-link:hover {
    color: var(--color-primary-green);
}

.nav-button {
    font-weight: 600;
    color: var(--color-primary-green);
    background-color: transparent;
    border: 2px solid var(--color-primary-green);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition-main);
}

.nav-button:hover {
    background-color: var(--color-primary-green);
    color: var(--color-text-light);
}

/* ============================ */
/* Sección Principal (Hero)     */
/* ============================ */
.hero-section {
    background-color: var(--color-background-light);
    padding: 100px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--color-primary-dark);
}

.subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: #555;
}

.cta-button {
    display: inline-block;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-light);
    background-color: var(--color-accent-gold);
    padding: 15px 30px;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition-main);
    box-shadow: 0 4px 10px rgba(255, 171, 0, 0.4);
    border: none;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(255, 171, 0, 0.5);
}

/* ================================================= */
/* ESTILOS PARA PÁGINAS DE AUTENTICACIÓN (LOGIN)     */
/* ================================================= */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh; /* Ajustado para que no ocupe toda la pantalla */
    padding: 2rem 1rem;
}
.auth-card {
    background-color: #FFFFFF;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 420px;
}
.auth-card h2 {
    text-align: center;
    margin-bottom: 0.5rem;
    font-size: 2rem;
    color: var(--color-text-dark);
}
.auth-card p {
    text-align: center;
    margin-bottom: 2rem;
    color: #666;
}
.form-group {
    margin-bottom: 1.25rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}
.form-group input {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: var(--font-family-main); /* Usar la fuente principal */
    font-size: 1rem;
}
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    text-align: center;
    transition: var(--transition-main);
    text-decoration: none;
}
.btn-primary.btn-block {
    display: block;
    width: 100%;
    background-color: var(--color-primary-green);
    color: var(--color-text-light);
    font-size: 1.1rem;
    padding: 1rem;
}
.btn-primary.btn-block:hover {
    background-color: var(--color-primary-dark);
    text-decoration: none;
}
.error-message {
    color: var(--error-color);
    background-color: #FFEBEE;
    border: 1px solid var(--error-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-top: 1.5rem;
    text-align: center;
    display: none; /* Se mostrará con JS */
}
.auth-switch {
    margin-top: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
}
.auth-switch a {
    font-weight: 600;
}

/* ============================ */
/* Sección de Beneficios        */
/* ============================ */
.features-section {
    padding: 80px 0;
    background-color: var(--color-background-medium);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background-color: #fff;
    padding: 40px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition-main);
}

.feature-card:hover {
    transform: translateY(-10px);
}

.card-icon {
    font-size: 3.5rem;
    color: var(--color-primary-green);
    margin-bottom: 20px;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
}

/* ============================ */
/* Sección de Planes            */
/* ============================ */
.plans-section {
    padding: 80px 0;
    background-color: var(--color-background-light);
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: center; /* Alinea las tarjetas verticalmente */
}

.plan-card {
    background-color: var(--color-background-medium);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition-main);
    border: 2px solid transparent;
}

.plan-card.featured {
    transform: scale(1.05); /* El plan destacado es un poco más grande */
    border-color: var(--color-primary-green);
    position: relative;
}

.featured-tag {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-primary-green);
    color: var(--color-text-light);
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
}

.plan-price {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--color-primary-green);
    margin: 15px 0;
}

.price-period {
    font-size: 1rem;
    font-weight: 400;
    color: #777;
}

.plan-features {
    list-style: none;
    padding: 0;
    margin: 30px 0;
    text-align: left;
}

.plan-features li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.plan-features i {
    color: var(--color-primary-green);
    font-size: 1.2rem;
}

.secondary-button {
    background-color: transparent;
    color: var(--color-primary-green);
    border: 2px solid var(--color-primary-green);
    box-shadow: none;
}

.secondary-button:hover {
    background-color: var(--color-primary-green);
    color: var(--color-text-light);
    transform: translateY(0); /* Anula el efecto hover del botón principal */
    box-shadow: none;
}


/* ============================ */
/* Sección CTA (Formulario)     */
/* ============================ */
.cta-section {
    background-color: var(--color-primary-green);
    padding: 80px 0;
    color: var(--color-text-light);
}

.cta-content {
    text-align: center;
}

.cta-title {
    color: var(--color-text-light);
}

.cta-text {
    margin-bottom: 30px;
    font-size: 1.1rem;
    opacity: 0.9;
}

.cta-form {
    display: flex;
    justify-content: center;
    gap: 15px;
    max-width: 600px;
    margin: 0 auto;
}

.form-input {
    flex-grow: 1;
    padding: 15px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: var(--font-family-main);
}

.form-button {
    white-space: nowrap; /* Evita que el texto del botón se rompa */
}


/* ============================ */
/* Pie de Página                */
/* ============================ */
.main-footer {
    padding: 30px 0;
    text-align: center;
    background-color: var(--color-background-light);
    border-top: 1px solid #e0e0e0;
}

/* ============================ */
/* Animaciones de Entrada       */
/* ============================ */
.animated-element {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animated-element.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Retraso para los elementos en una secuencia */
.hero-content > * { transition-delay: 0.2s; }
.hero-content .subtitle { transition-delay: 0.4s; }
.hero-content .cta-button { transition-delay: 0.6s; }
.feature-card:nth-child(2) { transition-delay: 0.2s; }
.feature-card:nth-child(3) { transition-delay: 0.4s; }
.plan-card:nth-child(2) { transition-delay: 0.2s; }
.plan-card:nth-child(3) { transition-delay: 0.4s; }


/* ============================ */
/* Diseño Responsivo (Móviles)  */
/* ============================ */
@media (max-width: 992px) {
    .features-grid, .plans-grid {
        grid-template-columns: 1fr; /* Una columna para tabletas y móviles */
        gap: 30px;
    }
    .plans-grid {
        max-width: 450px;
        margin: 0 auto;
    }

    .plan-card.featured {
        transform: scale(1); /* Desactiva el zoom en móviles */
    }
}


@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .cta-form {
        flex-direction: column; /* Apila el input y el botón */
    }

    .main-nav {
        /* Se puede añadir lógica para un menú hamburguesa aquí en el futuro */
        display: none; 
    }
}