@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;700&family=Lora:wght@400;700&display=swap');

:root {
    --primary-color: #1a5f7a;
    --secondary-color: #4caf50;
    --accent-color: #ff6b6b;
    --background-color: #f0f4f8;
    --card-background: #ffffff;
    --text-color: #333333;
    --hover-color: #e8f4f8;
}

/* Estilos base mejorados */
body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    transition: all 0.3s ease;
}

.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Barra de navegación */
.nav-bar {
    background: var(--primary-color);
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

/* Buscador */
.search-container {
    background: var(--card-background);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.search-input {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--primary-color);
    border-radius: 25px;
    font-size: 1.1em;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    box-shadow: 0 0 10px rgba(26,95,122,0.3);
}

/* Contenedor de mensajes */
.messages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.message-card {
    background: var(--card-background);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border-left: 5px solid var(--primary-color);
}

.message-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

/* Etiquetas y categorías */
.tag {
    display: inline-block;
    padding: 5px 15px;
    border-radius: 15px;
    background: var(--hover-color);
    color: var(--primary-color);
    font-size: 0.9em;
    margin: 5px;
    transition: all 0.3s ease;
}

.tag:hover {
    background: var(--primary-color);
    color: white;
}

/* Animaciones */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animated {
    animation: slideIn 0.5s ease-out forwards;
}

/* Modo oscuro */
body.dark-mode {
    --background-color: #1a1a1a;
    --card-background: #2a2a2a;
    --text-color: #ffffff;
    --hover-color: #3a3a3a;
}

/* Estilos responsivos */
@media (max-width: 768px) {
    .messages-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-content {
        flex-direction: column;
        gap: 15px;
    }
}