/* ========== VARIABLES CSS ========== */

:root {
    /* Colores para modo claro (default) */
    --color-primary: #0073aa;
    --color-primary-hover: #005177;
    --color-text: #222;
    --color-text-light: #555;
    --color-meta: #777;
    --color-background: #fff;
    --color-border: #eee;
    --color-card-hover: rgba(0, 0, 0, 0.06);

    /* Tipografía */
    --font-main: system-ui, -apple-system, 'Segoe UI', Roboto, Arial, Helvetica, sans-serif;
    --font-size-base: 1rem;
    
    /* Espaciado */
    --spacing-unit: 1rem;
    --container-width: 1600px;
    --container-padding: 20px;
    
    /* Border radius */
    --border-radius: 12px;
    
    /* Transiciones */
    --transition-speed: 0.12s;
}

/* Variables para modo oscuro */
[data-theme="dark"] {
    --color-primary: #4da6ff;
    --color-primary-hover: #80bfff;
    --color-text: #f0f0f0;
    --color-text-light: #cccccc;
    --color-meta: #d6d6d6;
    --color-background: #1a1a1a;
    --color-border: #444444;
    --color-card-hover: rgba(255, 255, 255, 0.06);
}

/* ========== ESTILOS BASE ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
}

/* ========== LAYOUT GLOBAL ========== */
.container {
    width: min(var(--container-width), 92%);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

.site-content {
    flex: 1;
    padding: 30px 0;
}

/* ========== COMPONENTES COMUNES ========== */
/* Header */
.site-header {
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
}

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

.site-branding {
    flex-shrink: 0;
}

.site-title {
    font-weight: 700;
    font-size: 1.25rem;
    margin: 0;
}

.site-title a {
    color: inherit;
}

/* Navegación */
.main-navigation {
    position: relative;
}

.primary-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    margin: 0;
}

.primary-menu a {
    padding: 8px 12px;
    display: inline-block;
    color: var(--color-text);
}

.primary-menu a:hover {
    color: var(--color-primary);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

/* Footer */
.site-footer {
    margin-top: 20px;
    padding: 24px 0;
    border-top: 1px solid var(--color-border);
    color: var(--color-meta);
    font-size: 0.95rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.footer-widgets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    margin: 0;
}

/* ========== MANEJO DE IMÁGENES ========== */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

.full-width-image {
    width: 100%;
    max-width: 1000px;
    height: auto;
    margin: 0 auto;
}

.image-container {
    position: relative;
    overflow: hidden;
}

.image-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* ========== UTILIDADES ========== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-1 { margin-top: var(--spacing-unit); }
.mb-1 { margin-bottom: var(--spacing-unit); }

/* ========== Ocultar texto para screen readers (ya debería existir, pero por si acaso) ========== */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 780px) {
    :root {
        --container-padding: 15px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .primary-menu {
        flex-direction: column;
        text-align: center;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-menu {
        justify-content: center;
    }
}

@media (max-width: 450px) {
    .footer-widgets {
        grid-template-columns: 1fr;
    }
    
    .site-content {
        padding: 20px 0;
    }
    
    img {
        max-width: 100%;
        height: auto;
    }
    
    .image-container {
        overflow: hidden;
    }
}

@media (min-width: 950px) {
    .full-width-content img {
        max-width: 100%;
        height: auto;
    }
}

@media (min-width: 1000px) {
    .container {
        max-width: 1300px;
    }
    
    .full-width-image {
        max-width: 1000px;
        margin: 0 auto;
    }
}

/* Para posts individuales, permitir mayor ancho */
.single-post .container {
    max-width: min(1370px, 92%) !important;
}

/* Asegurar que .content-sidebar-wrapper pueda expandirse */
.single-post .content-sidebar-wrapper {
    max-width: none !important;
}

/* ========== CSS modo día/noche ========== */

/* ========== DISEÑO ATRACTIVO DEL BOTÓN ========== */
.theme-switcher-btn {
    position: relative;
    width: 60px;
    height: 30px;
    border-radius: 30px;
    border: none;
    background: linear-gradient(145deg, #6b6b6b, #4a4a4a);
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    margin-left: 15px;
}

.theme-switcher-btn::before {
    content: '';
    position: absolute;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #fff;
    left: 3px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.theme-switcher-btn .theme-icon-light,
.theme-switcher-btn .theme-icon-dark {
    position: absolute;
    font-size: 14px;
}

.theme-switcher-btn .theme-icon-light {
    left: 8px;
    opacity: 0;
}

.theme-switcher-btn .theme-icon-dark {
    right: 8px;
    opacity: 1;
}

[data-theme="dark"] .theme-switcher-btn {
    background: linear-gradient(145deg, #a0a0a0, #707070);
}

[data-theme="dark"] .theme-switcher-btn::before {
    left: calc(100% - 27px);
    background: #2f3542;
}

[data-theme="dark"] .theme-switcher-btn .theme-icon-light {
    opacity: 1;
}

[data-theme="dark"] .theme-switcher-btn .theme-icon-dark {
    opacity: 0;
}

/* ========== MANTENER TU RESPONSIVE ========== */
@media screen and (max-width: 768px) {
    .theme-switcher-btn {
        width: 50px;
        height: 25px;
        margin-left: 10px;
    }
    
    .theme-switcher-btn::before {
        width: 20px;
        height: 20px;
    }
    
    [data-theme="dark"] .theme-switcher-btn::before {
        left: calc(100% - 23px);
    }
}

/* ========== SOLUCIÓN DEFINITIVA PARA FLASH Y VISIBILIDAD ========== */

/* Asegurar que el body use las variables CSS inmediatamente */
body {
    background-color: var(--color-background) !important;
    color: var(--color-text) !important;
    opacity: 1 !important;
    visibility: visible !important;
}

/* Forzar que elementos clave hereden los colores correctos */
.site-header,
.site-footer,
.primary-menu a,
.footer-menu a,
.site-title,
.widget,
.sidebar {
    background-color: inherit !important;
    color: inherit !important;
    border-color: var(--color-border) !important;
}

/* Estilos para enlaces */
a {
    color: var(--color-primary) !important;
}

a:hover {
    color: var(--color-primary-hover) !important;
}

/* Eliminar TODAS las transiciones para cambios de tema */
body,
body *,
.site-header,
.site-footer,
.primary-menu a,
.footer-menu a,
.site-title,
.widget,
.sidebar {
    transition: none !important;
    animation: none !important;
}

/* ========== Logo modo claro/oscuro ========== */

/* Visibilidad según tema */
.logo-light { display: inline; }
.logo-dark  { display: none; }

[data-theme="dark"] .logo-light { display: none; }
[data-theme="dark"] .logo-dark  { display: inline; }

/* Tamaños del logo responsivos */
.site-logo img {
    height: auto;
    width: auto;
}

/* Tamaño máximo por dispositivo */
@media (min-width: 1440px) {
    .site-logo img { max-height: 120px; }
}
@media (max-width: 1439px) {
    .site-logo img { max-height: 90px; }
}
@media (max-width: 1024px) {
    .site-logo img { max-height: 75px; }
}
@media (max-width: 779px) {
    .site-logo img { max-height: 65px; }
}
@media (max-width: 450px) {
    .site-logo img { max-height: 55px; }
}