/* =========================================================================
   HospediaPro — Estilos Principales
   Base de diseño del tema. Las secciones individuales (Hero, Stats,
   Cursos, etc.) añadirán sus propios bloques en fases posteriores.
   ========================================================================= */

/* -------------------------------------------------------------------------
   1. Design Tokens (CSS Variables)
   ------------------------------------------------------------------------- */
:root {
    /* Paleta base — derivada de la documentación */
    --hp-color-bg:          #ffffff;
    --hp-color-text:        #1a1a1a;
    --hp-color-text-muted:  #555555;
    --hp-color-text-soft:   #666666;
    --hp-color-border:      #e5e7eb;

    /* Colores de acción */
    --hp-color-primary:     #3B82F6; /* azul CTA según doc sección 5.3 */
    --hp-color-primary-dark:#2563eb;
    --hp-color-accent:      #f59e0b;

    /* Áreas oscuras (stats, footer) */
    --hp-color-dark:        #000000; /* stats background */
    --hp-color-dark-soft:   #111111; /* footer */
    --hp-color-dark-deep:   #0a0a0a; /* sub-footer */
    --hp-color-on-dark:     #ffffff;
    --hp-color-on-dark-mut: #cccccc;

    /* Tipografía */
    --hp-font-body:     'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    --hp-font-heading:  'Poppins', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

    --hp-fs-xs:   0.75rem;
    --hp-fs-sm:   0.875rem;
    --hp-fs-base: 1rem;
    --hp-fs-lg:   1.125rem;
    --hp-fs-xl:   1.25rem;
    --hp-fs-2xl:  1.5rem;
    --hp-fs-3xl:  2rem;
    --hp-fs-4xl:  2.5rem;
    --hp-fs-5xl:  3.25rem;

    /* Espaciado */
    --hp-space-1: 0.25rem;
    --hp-space-2: 0.5rem;
    --hp-space-3: 0.75rem;
    --hp-space-4: 1rem;
    --hp-space-6: 1.5rem;
    --hp-space-8: 2rem;
    --hp-space-12: 3rem;
    --hp-space-16: 4rem;
    --hp-space-24: 6rem;

    /* Layout */
    --hp-container-max:  1200px;
    --hp-container-pad:  1.25rem;

    /* Radios */
    --hp-radius-sm: 6px;
    --hp-radius-md: 10px;
    --hp-radius-lg: 16px;

    /* Sombras */
    --hp-shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
    --hp-shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --hp-shadow-lg: 0 10px 30px rgba(0,0,0,0.12);

    /* Transiciones */
    --hp-trans-fast: 150ms ease;
    --hp-trans-base: 250ms ease;
}

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

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--hp-font-body);
    font-size: var(--hp-fs-base);
    line-height: 1.6;
    color: var(--hp-color-text);
    background-color: var(--hp-color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--hp-color-primary);
    text-decoration: none;
    transition: color var(--hp-trans-fast);
}

a:hover,
a:focus-visible {
    color: var(--hp-color-primary-dark);
    text-decoration: underline;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--hp-font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 var(--hp-space-4);
    color: var(--hp-color-text);
}

h1 { font-size: var(--hp-fs-4xl); }
h2 { font-size: var(--hp-fs-3xl); }
h3 { font-size: var(--hp-fs-2xl); }
h4 { font-size: var(--hp-fs-xl); }

p {
    margin: 0 0 var(--hp-space-4);
}

/* -------------------------------------------------------------------------
   3. Accesibilidad
   ------------------------------------------------------------------------- */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    width: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    word-wrap: normal !important;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    padding: var(--hp-space-3) var(--hp-space-4);
    background: var(--hp-color-primary);
    color: #fff;
    z-index: 9999;
    transition: top var(--hp-trans-base);
}

.skip-link:focus {
    top: 0;
}

:focus-visible {
    outline: 2px solid var(--hp-color-primary);
    outline-offset: 2px;
}

/* -------------------------------------------------------------------------
   4. Layout utilidades
   ------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--hp-container-max);
    margin: 0 auto;
    padding-left: var(--hp-container-pad);
    padding-right: var(--hp-container-pad);
}

.site {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-content {
    flex: 1 0 auto;
}

/* -------------------------------------------------------------------------
   5. Header (placeholder — se desarrollará en Fase 2)
   ------------------------------------------------------------------------- */
.site-header {
    padding: var(--hp-space-4) 0;
    border-bottom: 1px solid var(--hp-color-border);
    background-color: var(--hp-color-bg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--hp-space-6);
    padding-left: var(--hp-container-pad);
    padding-right: var(--hp-container-pad);
}

.site-branding .site-title-link {
    font-family: var(--hp-font-heading);
    font-weight: 800;
    font-size: var(--hp-fs-xl);
    color: var(--hp-color-text);
    text-decoration: none;
}

.main-navigation ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--hp-space-6);
}

.main-navigation a {
    color: var(--hp-color-text);
    font-weight: 500;
}

/* -------------------------------------------------------------------------
   6. Posts / Cards base
   ------------------------------------------------------------------------- */
.posts-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--hp-space-8);
    margin: var(--hp-space-12) 0;
}

.post-card {
    background: #fff;
    border: 1px solid var(--hp-color-border);
    border-radius: var(--hp-radius-md);
    overflow: hidden;
    transition: transform var(--hp-trans-base), box-shadow var(--hp-trans-base);
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--hp-shadow-md);
}

.post-card-thumb img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.post-card-body {
    padding: var(--hp-space-6);
}

.post-card-title {
    font-size: var(--hp-fs-xl);
    margin-bottom: var(--hp-space-2);
}

.post-card-title a {
    color: var(--hp-color-text);
}

.post-card-meta {
    font-size: var(--hp-fs-sm);
    color: var(--hp-color-text-soft);
    margin-bottom: var(--hp-space-3);
}

.post-card-excerpt {
    color: var(--hp-color-text-muted);
    margin-bottom: var(--hp-space-4);
}

.post-card-link {
    font-weight: 600;
    display: inline-block;
}

/* -------------------------------------------------------------------------
   7. Formularios
   ------------------------------------------------------------------------- */
.search-form {
    display: flex;
    gap: var(--hp-space-2);
    max-width: 480px;
}

.search-field {
    flex: 1;
    padding: var(--hp-space-3) var(--hp-space-4);
    border: 1px solid var(--hp-color-border);
    border-radius: var(--hp-radius-sm);
    font: inherit;
}

.search-submit,
button[type="submit"] {
    padding: var(--hp-space-3) var(--hp-space-6);
    background: var(--hp-color-primary);
    color: #fff;
    border: 0;
    border-radius: var(--hp-radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: background var(--hp-trans-fast);
}

.search-submit:hover,
button[type="submit"]:hover {
    background: var(--hp-color-primary-dark);
}

/* -------------------------------------------------------------------------
   8. Footer (placeholder — se desarrollará en Fase 2)
   ------------------------------------------------------------------------- */
.site-footer {
    margin-top: var(--hp-space-24);
}

.footer-widgets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--hp-space-8);
    padding: var(--hp-space-16) var(--hp-container-pad);
    background: var(--hp-color-dark-soft);
    color: var(--hp-color-on-dark);
}

.footer-widgets a {
    color: var(--hp-color-on-dark-mut);
}

.footer-widgets .widget-title {
    color: var(--hp-color-on-dark);
    font-size: var(--hp-fs-lg);
    margin-bottom: var(--hp-space-4);
}

.sub-footer {
    background: var(--hp-color-dark-deep);
    color: var(--hp-color-on-dark-mut);
    padding: var(--hp-space-6) 0;
    font-size: var(--hp-fs-sm);
}

.sub-footer-text {
    margin: 0;
    text-align: left;
}

/* -------------------------------------------------------------------------
   9. Pagination
   ------------------------------------------------------------------------- */
.pagination {
    display: flex;
    gap: var(--hp-space-2);
    justify-content: center;
    flex-wrap: wrap;
    margin: var(--hp-space-12) 0;
}

.pagination .page-numbers {
    padding: var(--hp-space-2) var(--hp-space-4);
    border: 1px solid var(--hp-color-border);
    border-radius: var(--hp-radius-sm);
    color: var(--hp-color-text);
}

.pagination .page-numbers.current {
    background: var(--hp-color-primary);
    color: #fff;
    border-color: var(--hp-color-primary);
}

/* -------------------------------------------------------------------------
   10. Responsive (breakpoints globales)
   ------------------------------------------------------------------------- */
@media (max-width: 768px) {
    :root {
        --hp-fs-4xl: 2rem;
        --hp-fs-3xl: 1.625rem;
        --hp-fs-2xl: 1.25rem;
    }

    .site-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .main-navigation ul {
        gap: var(--hp-space-4);
    }
}