/* =========================================================================
   DIETA FREYA — Hoja de estilos demo v0
   Estructura por secciones para que migrar a Astro/componentes sea trivial.
   ========================================================================= */

/* -------------------------------------------------------------------------
   1. Variables (paleta canónica, tipografías, espaciado)
   ------------------------------------------------------------------------- */
:root {
    /* Paleta corporativa - NO usar colores hardcodeados, siempre via variable */
    --color-verde-principal: #5B7340;
    --color-verde-secundario: #8FA968;
    --color-verde-oscuro: #3F5025;        /* Para texto sobre fondos beige (WCAG AA) */
    --color-beige: #E8DCC4;
    --color-beige-claro: #F5EFE2;
    --color-marron: #A88B6E;
    --color-marron-oscuro: #7A5C3D;       /* Para texto sobre fondos beige (WCAG AA) */
    --color-texto-principal: #2C2C2C;
    --color-texto-secundario: #525252;    /* Oscurecido desde #5C5C5C para WCAG AA sobre beige claro */
    --color-blanco: #FFFFFF;
    --color-borde: rgba(44, 44, 44, 0.08);

    /* Tipografías */
    --font-titulo: 'Playfair Display', Georgia, serif;
    --font-cuerpo: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Tamaños base */
    --fs-base: 17px;
    --fs-h1: clamp(2.4rem, 5vw, 3.8rem);
    --fs-h2: clamp(1.8rem, 3.5vw, 2.6rem);
    --fs-h3: 1.25rem;
    --fs-lead: 1.15rem;

    /* Espaciado */
    --gap-xs: 0.5rem;
    --gap-sm: 1rem;
    --gap-md: 2rem;
    --gap-lg: 4rem;
    --gap-xl: 6rem;

    /* Otros */
    --radius: 8px;
    --shadow-sm: 0 2px 8px rgba(44, 44, 44, 0.06);
    --shadow-md: 0 6px 20px rgba(44, 44, 44, 0.1);
    --max-width: 1140px;
    --max-width-narrow: 760px;
    --transition: 200ms ease;
}

/* -------------------------------------------------------------------------
   2. Reset minimo
   ------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
    font-size: var(--fs-base);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--font-cuerpo);
    color: var(--color-texto-principal);
    background-color: var(--color-blanco);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-titulo);
    font-weight: 600;
    line-height: 1.25;
    color: var(--color-texto-principal);
    margin: 0 0 var(--gap-sm);
}

p { margin: 0 0 var(--gap-sm); }

a { color: var(--color-verde-principal); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-verde-secundario); }

/* -------------------------------------------------------------------------
   3. Layout: contenedor y grid
   ------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--gap-md);
}

.container-narrow { max-width: var(--max-width-narrow); }

.grid { display: grid; gap: var(--gap-md); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 880px) {
    .grid-3 { grid-template-columns: 1fr; gap: var(--gap-sm); }
}

/* -------------------------------------------------------------------------
   4. Header
   ------------------------------------------------------------------------- */
.site-header {
    background-color: var(--color-blanco);
    border-bottom: 1px solid var(--color-borde);
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(8px);
    background-color: rgba(255, 255, 255, 0.95);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--gap-sm);
    padding-bottom: var(--gap-sm);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--gap-xs);
    color: var(--color-texto-principal);
    font-family: var(--font-titulo);
    font-weight: 700;
    font-size: 1.4rem;
}

.logo:hover { color: var(--color-verde-principal); }

.logo-img { width: 40px; height: 40px; }

.main-nav { position: relative; }

.nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: var(--gap-md);
}

.main-nav a {
    color: var(--color-texto-secundario);
    font-weight: 400;
    font-size: 0.95rem;
}

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

/* Botón hamburguesa - oculto por defecto, visible en móvil */
.nav-toggle {
    display: none;
    background: none;
    border: 0;
    width: 44px;
    height: 44px;
    padding: 10px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.nav-toggle-bar {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-texto-principal);
    margin: 5px auto;
    transition: all var(--transition);
    border-radius: 1px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 640px) {
    .nav-toggle { display: block; }

    .nav-list {
        display: none;
        position: absolute;
        right: 0;
        top: calc(100% + var(--gap-xs));
        flex-direction: column;
        gap: 0;
        min-width: 220px;
        background-color: var(--color-blanco);
        padding: var(--gap-xs);
        border-radius: var(--radius);
        box-shadow: var(--shadow-md);
        border: 1px solid var(--color-borde);
    }

    .nav-list.is-open { display: flex; }

    .nav-list li {
        padding: 0;
    }

    .nav-list a {
        display: block;
        padding: var(--gap-sm);
        font-size: 1rem;
        border-radius: 4px;
    }

    .nav-list a:hover {
        background-color: var(--color-beige-claro);
    }
}

/* -------------------------------------------------------------------------
   5. Hero
   ------------------------------------------------------------------------- */
.hero {
    background: linear-gradient(135deg, var(--color-beige-claro) 0%, var(--color-beige) 100%);
    padding: var(--gap-xl) 0;
}

.hero-inner { text-align: center; max-width: 820px; margin: 0 auto; }

.hero-title {
    font-size: var(--fs-h1);
    color: var(--color-verde-principal);
    margin-bottom: var(--gap-md);
    font-weight: 700;
}

.hero-lead {
    font-size: var(--fs-lead);
    color: var(--color-texto-secundario);
    max-width: 640px;
    margin: 0 auto var(--gap-md);
}

.hero-actions {
    display: flex;
    gap: var(--gap-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--gap-md);
}

/* -------------------------------------------------------------------------
   6. Botones
   ------------------------------------------------------------------------- */
.btn {
    display: inline-block;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 0.95rem;
    transition: all var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-verde-principal);
    color: var(--color-blanco);
}

.btn-primary:hover {
    background-color: var(--color-verde-secundario);
    color: var(--color-blanco);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-verde-principal);
    border-color: var(--color-verde-principal);
}

.btn-secondary:hover {
    background-color: var(--color-verde-principal);
    color: var(--color-blanco);
}

/* -------------------------------------------------------------------------
   7. Secciones generales
   ------------------------------------------------------------------------- */
.section { padding: var(--gap-xl) 0; }

.section-light { background-color: var(--color-blanco); }
.section-beige { background-color: var(--color-beige-claro); }

.section-title {
    font-size: var(--fs-h2);
    color: var(--color-verde-principal);
    text-align: center;
    margin-bottom: var(--gap-sm);
}

.section-lead {
    font-size: var(--fs-lead);
    color: var(--color-texto-secundario);
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--gap-lg);
}

.section-note {
    font-size: 0.9rem;
    color: var(--color-texto-secundario);
    font-style: italic;
    text-align: center;
    margin-top: var(--gap-lg);
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

/* -------------------------------------------------------------------------
   8. Cards: feature (Por que dieta natural)
   ------------------------------------------------------------------------- */
.card-feature {
    padding: var(--gap-md);
    background-color: var(--color-blanco);
    border: 1px solid var(--color-borde);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.card-feature:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-verde-secundario);
}

.card-feature h3 {
    font-size: var(--fs-h3);
    color: var(--color-verde-principal);
    margin-bottom: var(--gap-sm);
}

.card-feature p {
    color: var(--color-texto-secundario);
    margin: 0;
    font-size: 0.95rem;
}

/* -------------------------------------------------------------------------
   9. Cards: recurso (PDFs descargables)
   ------------------------------------------------------------------------- */
.card-resource {
    background-color: var(--color-blanco);
    border-radius: var(--radius);
    padding: var(--gap-md);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.card-resource:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.card-resource-tag {
    display: inline-block;
    align-self: flex-start;
    padding: 0.25rem 0.7rem;
    background-color: var(--color-beige);
    color: var(--color-marron-oscuro);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 4px;
    margin-bottom: var(--gap-sm);
}

.card-resource h3 {
    font-size: 1.15rem;
    color: var(--color-verde-principal);
    margin-bottom: var(--gap-xs);
}

.card-resource p {
    color: var(--color-texto-secundario);
    font-size: 0.92rem;
    flex-grow: 1;
}

.card-resource-link {
    display: inline-block;
    margin-top: var(--gap-sm);
    color: var(--color-verde-principal);
    font-weight: 700;
    font-size: 0.9rem;
    transition: color var(--transition);
}

.card-resource-link:hover,
.card-resource-link:focus-visible {
    color: var(--color-verde-secundario);
    text-decoration: underline;
}

/* -------------------------------------------------------------------------
   10. Sobre el proyecto (texto largo)
   ------------------------------------------------------------------------- */
#sobre p {
    font-size: 1.05rem;
    color: var(--color-texto-principal);
    margin-bottom: var(--gap-md);
}

#sobre .muted {
    color: var(--color-texto-secundario);
    font-size: 0.95rem;
    border-left: 3px solid var(--color-verde-secundario);
    padding-left: var(--gap-sm);
    margin-top: var(--gap-md);
}

/* -------------------------------------------------------------------------
   11. Footer
   ------------------------------------------------------------------------- */
.site-footer {
    background-color: var(--color-texto-principal);
    color: var(--color-beige-claro);
    padding: var(--gap-lg) 0 var(--gap-md);
}

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

.footer-brand {
    font-family: var(--font-titulo);
    font-size: 1.1rem;
    color: var(--color-blanco);
    margin-bottom: var(--gap-sm);
}

.footer-disclaimer {
    font-size: 0.9rem;
    color: var(--color-beige);
    max-width: 640px;
    margin: 0 auto var(--gap-md);
    opacity: 0.9;
}

.footer-meta {
    font-size: 0.8rem;
    color: var(--color-beige);
    opacity: 0.6;
    margin: 0;
}

/* -------------------------------------------------------------------------
   12. Método (sección "Cómo trabajamos")
   ------------------------------------------------------------------------- */
.metodo-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap-md);
}

.metodo-step {
    background-color: var(--color-blanco);
    border-radius: var(--radius);
    padding: var(--gap-md);
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.metodo-step:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.metodo-num {
    font-family: var(--font-titulo);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--color-verde-secundario);
    line-height: 1;
    margin-bottom: var(--gap-sm);
    opacity: 0.85;
}

.metodo-step h3 {
    font-size: 1.1rem;
    color: var(--color-verde-principal);
    margin-bottom: var(--gap-xs);
}

.metodo-step p {
    font-size: 0.92rem;
    color: var(--color-texto-secundario);
    margin: 0;
    line-height: 1.55;
}

@media (max-width: 880px) {
    .metodo-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .metodo-grid {
        grid-template-columns: 1fr;
    }
}

/* -------------------------------------------------------------------------
   13. Planes (sección de pricing pública)
   ------------------------------------------------------------------------- */
.planes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap-sm);
    margin-bottom: var(--gap-lg);
}

.plan-card {
    background-color: var(--color-blanco);
    border: 1px solid var(--color-borde);
    border-radius: var(--radius);
    padding: var(--gap-md);
    display: flex;
    flex-direction: column;
    transition: all var(--transition);
    position: relative;
}

.plan-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.plan-card-featured {
    border-color: var(--color-verde-principal);
    border-width: 2px;
    box-shadow: var(--shadow-md);
}

.plan-card-featured::before {
    content: "Recomendado";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-verde-principal);
    color: var(--color-blanco);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.85rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.plan-card-recurring {
    background-color: var(--color-beige-claro);
}

.plan-tag {
    display: inline-block;
    align-self: flex-start;
    padding: 0.25rem 0.7rem;
    background-color: var(--color-beige);
    color: var(--color-marron-oscuro);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 4px;
    margin-bottom: var(--gap-sm);
}

.plan-precio {
    font-family: var(--font-titulo);
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--color-verde-principal);
    line-height: 1;
    margin-bottom: var(--gap-xs);
}

.plan-precio-unidad {
    font-size: 1.1rem;
    color: var(--color-texto-secundario);
    font-weight: 400;
    margin-left: 0.2rem;
}

.plan-precio-desc {
    font-size: 0.85rem;
    color: var(--color-texto-secundario);
    margin-bottom: var(--gap-sm);
    min-height: 2.6em;
    line-height: 1.4;
}

.plan-bullets {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--gap-md);
    font-size: 0.9rem;
    color: var(--color-texto-principal);
    flex-grow: 1;
}

.plan-bullets li {
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--color-borde);
    line-height: 1.4;
}

.plan-bullets li:last-child {
    border-bottom: none;
}

.plan-bullets li::before {
    content: "✓ ";
    color: var(--color-verde-principal);
    font-weight: 700;
    margin-right: 0.3rem;
}

.plan-cta {
    display: block;
    text-align: center;
    padding: 0.7rem 1rem;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 0.9rem;
    margin-top: auto;
}

.plan-cta-soon {
    background-color: var(--color-beige);
    color: var(--color-marron-oscuro);
    border: 1px dashed var(--color-marron-oscuro);
    cursor: not-allowed;
}

.plan-cta-waitlist {
    background-color: var(--color-verde-principal);
    color: var(--color-blanco);
    border: 1px solid var(--color-verde-principal);
    cursor: pointer;
    font-family: inherit;
    transition: background-color var(--transition), border-color var(--transition);
}

.plan-cta-waitlist:hover,
.plan-cta-waitlist:focus-visible {
    background-color: var(--color-verde-secundario);
    border-color: var(--color-verde-secundario);
}

@media (max-width: 1024px) {
    .planes-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--gap-md);
    }
}

@media (max-width: 560px) {
    .planes-grid {
        grid-template-columns: 1fr;
    }

    .plan-precio {
        font-size: 2.4rem;
    }
}

/* -------------------------------------------------------------------------
   14. Patologías (bloque informativo dentro de Planes)
   ------------------------------------------------------------------------- */
.patologias-block {
    margin-top: var(--gap-lg);
    padding: var(--gap-md);
    background-color: var(--color-beige-claro);
    border-radius: var(--radius);
    border-left: 4px solid var(--color-verde-principal);
}

.patologias-block-title {
    font-size: 1.25rem;
    color: var(--color-verde-oscuro);
    text-align: center;
    margin-bottom: var(--gap-xs);
}

.patologias-block-lead {
    font-size: 0.95rem;
    color: var(--color-texto-secundario);
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--gap-md);
    line-height: 1.5;
}

.patologias-list {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--gap-xs);
    margin-bottom: var(--gap-md);
}

.patologia-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: var(--color-blanco);
    border-radius: var(--radius);
    padding: var(--gap-sm);
    text-align: center;
    border: 1px solid var(--color-borde);
}

.patologia-item-active {
    border-color: var(--color-verde-principal);
    border-width: 2px;
}

.patologia-item-soon {
    opacity: 0.55;
}

.patologia-item-badge {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    margin-bottom: var(--gap-xs);
}

.patologia-item-active .patologia-item-badge {
    background-color: var(--color-verde-principal);
    color: var(--color-blanco);
}

.patologia-item-soon .patologia-item-badge {
    background-color: var(--color-beige);
    color: var(--color-marron-oscuro);
}

.patologia-item-name {
    font-size: 0.82rem;
    color: var(--color-texto-principal);
    font-weight: 700;
    line-height: 1.3;
}

.patologias-block-disclaimer {
    font-size: 0.85rem;
    color: var(--color-texto-secundario);
    text-align: center;
    font-style: italic;
    margin: 0;
    padding-top: var(--gap-sm);
    border-top: 1px solid var(--color-borde);
}

@media (max-width: 880px) {
    .patologias-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* -------------------------------------------------------------------------
   15. Stats (sección "Sobre el proyecto" — métricas de respaldo)
   ------------------------------------------------------------------------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap-md);
    margin: var(--gap-md) 0;
    padding: var(--gap-md);
    background-color: var(--color-beige-claro);
    border-radius: var(--radius);
}

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

.stat-num {
    font-family: var(--font-titulo);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--color-verde-principal);
    line-height: 1;
    margin-bottom: var(--gap-xs);
}

.stat-label {
    font-size: 0.82rem;
    color: var(--color-texto-secundario);
    line-height: 1.3;
}

@media (max-width: 640px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--gap-sm);
    }

    .stat-num {
        font-size: 2rem;
    }
}

/* -------------------------------------------------------------------------
   16. Accesibilidad: skip link, focus visible, motion reducido
   ------------------------------------------------------------------------- */

/* Skip link — visible solo al recibir foco con teclado.
   Permite al usuario de teclado/lector de pantalla saltar al contenido principal sin tener que tabular toda la nav. */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background-color: var(--color-verde-principal);
    color: var(--color-blanco);
    padding: var(--gap-sm) var(--gap-md);
    z-index: 100;
    border-radius: 0 0 var(--radius) 0;
    font-weight: 700;
    text-decoration: none;
}

.skip-link:focus,
.skip-link:focus-visible {
    left: 0;
    color: var(--color-blanco);
}

/* Focus ring uniforme — solo cuando navega por teclado, no en clicks de ratón */
*:focus-visible {
    outline: 2px solid var(--color-verde-principal);
    outline-offset: 2px;
    border-radius: 2px;
}

.btn:focus-visible {
    outline-offset: 4px;
}

/* Respetar la preferencia del sistema "reducir movimiento" */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* -------------------------------------------------------------------------
   17. Página 404
   ------------------------------------------------------------------------- */
.page-404 main {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.error-section {
    width: 100%;
    padding: var(--gap-xl) 0;
}

.error-inner {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.error-eyebrow {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-marron-oscuro);
    margin-bottom: var(--gap-sm);
}

.error-title {
    font-size: var(--fs-h2);
    color: var(--color-verde-principal);
    margin-bottom: var(--gap-md);
}

.error-lead {
    font-size: var(--fs-lead);
    color: var(--color-texto-secundario);
    margin-bottom: var(--gap-md);
}

.error-actions {
    display: flex;
    gap: var(--gap-sm);
    justify-content: center;
    flex-wrap: wrap;
}