/* Variables CSS (similares a la paleta de Tailwind) */
:root {
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    --color-blue-300: #93c5fd;
    --color-blue-400: #60a5fa;
    --color-blue-600: #2563eb;
    --color-blue-700: #1d4ed8;
    --color-blue-800: #1e40af;
    --color-red-500: #ef4444;
    --color-white: #ffffff;
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --rounded-lg: 0.5rem;
    --rounded-full: 9999px; /* Para botones redondeados */
}

/* Reseteo Básico */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    line-height: 1.5;
    font-family: sans-serif; /* O una fuente más específica */
}

body {
    background-color: var(--color-gray-900);
    color: var(--color-white);
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: inherit;
}

/* Contenedor principal */
.container {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem; /* px-4 */
    padding-right: 1rem; /* px-4 */
}
/* Breakpoints del contenedor (similares a Tailwind) */
@media (min-width: 640px) { .container { max-width: 640px; } }
@media (min-width: 768px) { .container { max-width: 768px; } }
@media (min-width: 1024px) { .container { max-width: 1024px; } }
@media (min-width: 1280px) { .container { max-width: 1280px; } }
@media (min-width: 1536px) { .container { max-width: 1536px; } }

/* Header */
.site-header {
    background-color: var(--color-gray-800);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 50;
    padding-top: 1rem; /* py-4 */
    padding-bottom: 1rem; /* py-4 */
}

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

.logo a {
    font-size: 1.875rem; /* text-3xl */
    font-weight: 700; /* font-bold */
    color: var(--color-blue-400);
    transition: color 0.2s;
}
.logo a:hover {
    color: var(--color-blue-300);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem; /* gap-4 */
}

/* Botones (Comunes) */
.button {
    display: inline-block;
    background-color: var(--color-blue-600);
    color: var(--color-white);
    padding: 0.5rem 1rem; /* px-4 py-2 / py-2 px-6 */
    border-radius: var(--rounded-lg); /* rounded */
    text-align: center;
    font-weight: 600; /* font-bold */
    transition: background-color 0.2s, transform 0.2s;
    cursor: pointer;
}
.button:hover {
    background-color: var(--color-blue-700);
    transform: translateY(-1px);
}
.button-primary {
    background-color: var(--color-blue-600);
}
.button-primary:hover {
    background-color: var(--color-blue-700);
}
.button-rounded {
    border-radius: var(--rounded-full);
}


/* Main Content Area (Común) */
.main-content {
    padding-top: 2rem; /* py-8 */
    padding-bottom: 2rem; /* py-8 */
}

/* Mensaje de Error (Común) */
.error-message {
    background-color: var(--color-red-500);
    color: var(--color-white);
    padding: 1rem; /* p-4 */
    border-radius: var(--rounded-lg);
    margin-bottom: 1rem; /* mb-4 */
}
.error-message h2 {
    font-size: 1.25rem; /* text-xl */
    font-weight: 700; /* font-bold */
    margin-bottom: 0.5rem; /* mb-2 */
}
.error-message pre {
    white-space: pre-wrap; /* whitespace-pre-wrap */
    font-family: monospace;
}

/* Footer (Común) */
.site-footer {
    background-color: var(--color-gray-800);
    margin-top: 2rem; /* mt-8 */
    padding-top: 1.5rem; /* py-6 */
    padding-bottom: 1.5rem; /* py-6 */
}
.footer-content {
    text-align: center; /* text-center */
    color: var(--color-gray-400);
}

/* Clases de utilidad heredadas (Común, opcionales para eliminar si no se usan) */
.content-card { 
     transition: transform 0.2s;
}
.content-card:hover {
     transform: scale(1.05);
}
.pagination-link { 
     transition: all 0.2s;
}
.pagination-link:hover { 
     transform: translateY(-2px);
}