/* =========== Variables Globales y Reset Básico =========== */
:root {
    --color-primary: #0A2540; /* Azul oscuro corporativo */
    --color-accent: #FF5733;  /* Naranja vibrante */
    --color-background-light: #F8F9FA;
    --color-background-white: #FFFFFF;
    --color-text-dark: #343A40;
    --color-text-light: #FFFFFF;
    --color-text-muted: #6C757D;
    --color-border: #DEE2E6;

    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;

    --nav-height: 70px;
    --section-padding: 80px 0;
    --container-width: 1140px;
    --border-radius: 8px;
    --box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* =========== Utilidades Generales =========== */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 15px;
    padding-right: 15px;
}

.section-padding {
    padding: var(--section-padding);
}

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

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

.section-title {
    font-family: var(--font-primary);
    font-size: 2.5rem; /* 40px */
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 1.5rem; /* 24px */
}
.section-title.text-center {
    margin-bottom: 3rem; /* Más espacio si está centrado */
}
.section-title-light {
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}


.lead-text {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.accent-icon {
    color: var(--color-accent);
    margin-right: 10px;
    font-size: 1.2em;
}

.grid-2-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem; /* 48px */
}
.align-items-center {
    align-items: center;
}

/* =========== Botones =========== */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 1rem;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-text-light);
    border-color: var(--color-accent);
}
.btn-primary:hover {
    background-color: #E64A19; /* Naranja más oscuro */
    border-color: #E64A19;
    transform: translateY(-2px);
}

.btn-primary-dark { /* Para fondos claros, usa el color primario oscuro */
    background-color: var(--color-primary);
    color: var(--color-text-light);
    border-color: var(--color-primary);
}
.btn-primary-dark:hover {
    background-color: #071c33;
    border-color: #071c33;
    transform: translateY(-2px);
}


.btn-secondary { /* Para fondos oscuros, resalta con color claro */
    background-color: var(--color-background-light);
    color: var(--color-primary);
    border-color: var(--color-background-light);
}
.btn-secondary:hover {
    background-color: var(--color-text-light);
    border-color: var(--color-text-light);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-accent);
}
.site-header .btn-outline { /* Ajuste para header */
     color: var(--color-accent);
}
.btn-outline:hover {
    background-color: var(--color-accent);
    color: var(--color-text-light);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}
.btn-block {
    display: block;
    width: 100%;
}


/* =========== Header / Navegación =========== */
.site-header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 0 1rem;
    height: var(--nav-height);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.nav-logo .logo-text {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}
.nav-logo .logo-img {
    height: 40px; /* Ajustar según el logo */
    width: auto;
}

.main-nav {
    display: flex;
}
.nav-list {
    list-style: none;
    display: flex;
    align-items: center;
}
.nav-list li {
    margin-left: 1.8rem;
}
.nav-link {
    font-family: var(--font-primary);
    color: var(--color-text-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s ease;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width 0.3s ease;
}
.nav-link:hover, .nav-link.active {
    color: var(--color-accent);
}
.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}
.nav-list .btn-outline { /* Botón en la nav */
    padding: 0.5rem 1rem;
    margin-left: 1rem;
}


.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}
.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    position: relative;
    transition: transform 0.3s ease, background-color 0.3s ease;
}
.hamburger::before, .hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    transition: transform 0.3s ease, top 0.3s ease, bottom 0.3s ease;
}
.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }


/* =========== Hero Section =========== */
.hero-section {
    position: relative;
    min-height: 90vh; /* Ajustar según preferencia */
    /* background: url('../images/hero-background.jpg') no-repeat center center/cover; */
    background-color: var(--color-primary); /* Fallback si no hay imagen */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: var(--nav-height); /* Si la nav es sticky */
    color: var(--color-text-light);
}
.hero-overlay { /* Opcional, si la imagen de fondo necesita oscurecerse */
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* background-color: rgba(10, 37, 64, 0.5); */ /* Azul oscuro semi-transparente */
}
.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}
.hero-title {
    font-family: var(--font-primary);
    font-size: 3.2rem; /* 51.2px */
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--color-text-light); /* Hereda, pero por si acaso */
}
.hero-subtitle {
    font-size: 1.25rem; /* 20px */
    margin-bottom: 2.5rem;
    font-weight: 400;
    color: var(--color-text-light);
}
.hero-subtitle em {
    color: var(--color-accent);
    font-style: normal;
    font-weight: 600;
}
.hero-section .btn-secondary { /* Ejemplo si hay segundo botón */
    margin-left: 1rem;
    background-color: transparent;
    border-color: var(--color-text-light);
    color: var(--color-text-light);
}
.hero-section .btn-secondary:hover {
    background-color: var(--color-text-light);
    color: var(--color-primary);
}


/* =========== Problem-Solution Section =========== */
.problem-solution-section .grid-2-cols {
    align-items: center;
}
.problem-solution-image img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}
.feature-list-simple {
    list-style: none;
    padding-left: 0;
    margin-top: 1.5rem;
}
.feature-list-simple li {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}
.feature-list-simple strong {
    font-family: var(--font-primary);
    font-weight: 600;
}

/* =========== Chappy Presentation Section =========== */
.chappy-presentation-image img {
    width: 100%;
    max-width: 450px; /* Ajustar según la imagen */
    height: auto;
    border-radius: var(--border-radius);
    margin: 0 auto;
    display: block;
}
.feature-list-icons {
    list-style: none;
    padding-left: 0;
}
.feature-list-icons li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}
.feature-list-icons span { /* Contenedor del icono */
    font-size: 1.8rem;
    color: var(--color-accent);
    margin-right: 1.5rem;
    flex-shrink: 0;
    width: 40px; /* Ancho fijo para alineación */
    text-align: center;
}
.feature-list-icons strong {
    font-family: var(--font-primary);
    font-weight: 600;
    display: block;
    margin-bottom: 0.2rem;
    color: var(--color-primary);
}


/* =========== Pricing Section =========== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem; /* 32px */
    align-items: stretch; /* Hace que las tarjetas tengan la misma altura si el contenido varía */
}
.pricing-card {
    background-color: var(--color-background-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column; /* Para alinear el botón al final */
    position: relative; /* Para el badge */
}
.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}
.pricing-card.featured {
    border: 2px solid var(--color-accent);
    box-shadow: 0 10px 30px rgba(var(--color-accent-rgb, 255, 87, 51), 0.2); /* Define --color-accent-rgb si usas rgba */
}
.featured-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-accent);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-card-header {
    margin-bottom: 1.5rem;
}
.pricing-icon {
    height: 60px; /* Ajusta según tus iconos */
    width: auto;
    margin-bottom: 1rem;
}
.pricing-plan-name {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.3rem;
}
.pricing-plan-tagline {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-style: italic;
    margin-bottom: 1rem;
}
.pricing-plan-description {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    min-height: 60px; /* Para alinear descripciones */
}
.includes-all {
    font-size: 0.9rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    text-align: left;
}
.pricing-features {
    list-style: none;
    padding-left: 0;
    text-align: left;
    margin-bottom: 2rem;
    flex-grow: 1; /* Empuja el precio y botón hacia abajo */
}
.pricing-features li {
    margin-bottom: 0.7rem;
    display: flex;
    align-items: flex-start;
}
.pricing-features li i {
    color: var(--color-accent);
    margin-right: 10px;
    margin-top: 4px; /* Alineación vertical */
}
.pricing-card.featured .pricing-features li i { /* Iconos cohete para plan destacado */
    /* color: var(--color-accent); */ /* Ya es accent */
}
.pricing-price-section {
    margin-bottom: 1.5rem;
}
.price {
    font-family: var(--font-primary);
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--color-primary);
}
.price sup, .price sub {
    font-size: 0.5em;
    font-weight: 500;
}
.price sub {
    color: var(--color-text-muted);
}
.setup-fee {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* =========== Why Chappy Section =========== */
.why-chappy-section .grid-2-cols {
    align-items: center;
}
.why-chappy-image img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: var(--border-radius);
}
.benefit-list {
    list-style: none;
    padding-left: 0;
    margin-top: 1rem;
}
.benefit-list li {
    font-size: 1.05rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}
.benefit-list strong {
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--color-primary);
}


/* =========== CTA Final Section =========== */
.cta-final-section {
    background-color: var(--color-primary); /* Usar color primario oscuro */
    /* background: url('../images/cta-final-bg.jpg') no-repeat center center/cover; */
    color: var(--color-text-light);
}
.cta-text-light {
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 auto 2.5rem auto;
}
.cta-buttons .btn {
    margin: 0.5rem;
}
.contact-prompt {
    margin-top: 2.5rem;
}
.contact-link {
    color: var(--color-text-light);
    font-weight: 600;
    text-decoration: underline;
    transition: color 0.3s ease;
}
.contact-link:hover {
    color: var(--color-accent);
}


/* =========== Footer =========== */
.site-footer {
    background-color: #061a2e; /* Un poco más oscuro que el primario */
    color: var(--color-text-light);
    padding: 2.5rem 0;
    text-align: center;
}
.footer-content {
    /* display: flex;
    justify-content: space-between;
    align-items: center; */ /* Descomentar para layout más complejo */
}
.footer-logo span {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-light);
    display: block;
    margin-bottom: 0.5rem;
}
.footer-logo img {
    height: 30px; /* Ajustar */
    margin-bottom: 0.5rem;
}
.footer-text p {
    margin-bottom: 0.3rem;
    font-size: 0.9rem;
    color: var(--color-text-muted); /* Gris claro para contraste */
}
.site-footer .footer-text p:first-child { /* Copyright */
    color: #a7b3bf;
}
.footer-link {
    color: #a7b3bf; /* Gris claro */
    text-decoration: none;
}
.footer-link:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

/* =========== Media Queries para Responsividad =========== */
@media (max-width: 992px) {
    .section-title, .section-title-light { font-size: 2.2rem; }
    .hero-title { font-size: 2.8rem; }
    .hero-subtitle { font-size: 1.15rem; }

    .grid-2-cols {
        grid-template-columns: 1fr; /* Stack en una columna */
        gap: 2.5rem;
    }
    .problem-solution-image, .chappy-presentation-image, .why-chappy-image {
        order: -1; /* Imagen arriba en móviles */
        text-align: center; /* Centrar imagen si es más pequeña */
    }
     .chappy-presentation-image img, .problem-solution-image img, .why-chappy-image img {
        max-width: 80%; /* Que no ocupe todo el ancho */
        margin: 0 auto 2rem auto;
    }
    .pricing-grid {
        grid-template-columns: minmax(300px, 500px); /* Tarjetas centradas en una columna */
        justify-content: center;
    }
}

@media (max-width: 768px) {
    :root { --nav-height: 65px; }
    .section-title, .section-title-light { font-size: 2rem; }
    .hero-title { font-size: 2.3rem; }
    .hero-subtitle { font-size: 1.05rem; }
    .btn-lg { padding: 0.8rem 2rem; font-size: 1rem; }
    .cta-buttons .btn { display: block; margin: 1rem auto; max-width: 300px; }

    /* --- Navegación Móvil --- */
    .nav-toggle { display: block; }
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--color-background-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right 0.5s cubic-bezier(0.77, 0, 0.175, 1);
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        padding-top: var(--nav-height);
    }
    .main-nav.active { right: 0; }
    .nav-list { flex-direction: column; width: 100%; }
    .nav-list li { margin: 1rem 0; text-align: center; width: 100%; }
    .nav-link { font-size: 1.2rem; display: block; padding: 0.8rem 1rem;}
    .nav-list .btn-outline { margin: 1.5rem auto 0 auto; display:inline-block; width: auto; }

    .nav-toggle.active .hamburger { background-color: transparent; }
    .nav-toggle.active .hamburger::before { top: 0; transform: rotate(45deg); background-color: var(--color-accent); }
    .nav-toggle.active .hamburger::after { bottom: 0; transform: rotate(-45deg); background-color: var(--color-accent); }
}