:root {
    --bg-color: #f4f4f9;
    --text-color: #333333;
    --container-bg: #ffffff;
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --border-color: #dddddd;
    --error-color: #dc3545;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #121212;
        --text-color: #e0e0e0;
        --container-bg: #1e1e1e;
        --primary-color: #3b82f6;
        --primary-hover: #2563eb;
        --border-color: #333333;
    }
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.auth-container {
    background-color: var(--container-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.auth-container h1 { margin-bottom: 20px; font-size: 24px; }

.input-group { margin-bottom: 15px; text-align: left; }
.input-group label { display: block; margin-bottom: 5px; font-size: 14px; }
.input-group input {
    width: 100%; padding: 10px; border: 1px solid var(--border-color);
    border-radius: 4px; background-color: var(--bg-color); color: var(--text-color);
    box-sizing: border-box;
}

.btn {
    width: 100%; padding: 10px; background-color: var(--primary-color);
    color: white; border: none; border-radius: 4px; cursor: pointer;
    font-size: 16px; margin-top: 10px;
}
.btn:hover { background-color: var(--primary-hover); }

.auth-links { margin-top: 15px; display: flex; justify-content: space-between; font-size: 14px; }
.auth-links a { color: var(--primary-color); text-decoration: none; cursor: pointer; }
.error-msg { color: var(--error-color); margin-bottom: 15px; font-size: 14px; }

/* Estilos para os Modais */
.modal {
    display: none; 
    position: fixed; 
    z-index: 1000; 
    left: 0; top: 0; width: 100%; height: 100%; 
    background-color: rgba(0, 0, 0, 0.6); 
    align-items: center; justify-content: center;
}

.modal-content {
    background-color: var(--container-bg);
    color: var(--text-color);
    padding: 25px;
    border-radius: 8px;
    width: 90%;
    max-width: 400px;
    position: relative;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.modal-content h2 { margin-top: 0; }
.modal-desc { font-size: 14px; margin-bottom: 20px; color: #666; }

.close-btn {
    position: absolute; right: 15px; top: 15px;
    color: #aaa; font-size: 28px; font-weight: bold; cursor: pointer;
}
.close-btn:hover { color: var(--text-color); }

select, small {
    width: 100%; padding: 10px; border: 1px solid var(--border-color);
    border-radius: 4px; background-color: var(--bg-color); color: var(--text-color);
    box-sizing: border-box; display: block;
}
small { padding: 5px; border: none; background: transparent; color: #888; font-size: 12px;}

/* Layout Dashboard */
.dashboard-body {
    display: block;
    height: auto;
    padding-bottom: 80px; /* Espaço para o menu inferior */
    background-color: var(--bg-color);
}

.top-header {
    position: sticky;
    top: 0;
    background-color: var(--container-bg);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
}

.add-group-icon {
    font-size: 28px;
    color: var(--primary-color);
    text-decoration: none;
}

/* Cards de Grupo */
.group-card {
    background-color: var(--container-bg);
    margin: 15px 0;
    padding: 15px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    cursor: pointer;
    transition: transform 0.2s;
}

.group-card:hover { transform: scale(1.02); }

.group-img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
    background-color: #eee;
}

.group-details h3 { margin: 0; font-size: 16px; }
.group-details p { margin: 5px 0 0; font-size: 14px; color: #777; }

/* Menu Inferior */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 65px;
    background-color: var(--container-bg);
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
}

.nav-item {
    text-decoration: none;
    color: #888;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 12px;
}

.nav-item.active { color: var(--primary-color); }
.nav-item i { font-size: 20px; margin-bottom: 4px; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    width: 100%;
    max-width: 250px;
}

/* Estilos da Tela de Amigos */
.friend-card {
    background-color: var(--container-bg);
    margin: 10px 0;
    padding: 15px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.friend-info h4 { margin: 0 0 5px 0; font-size: 16px; color: var(--text-color); }
.friend-info p { margin: 0; font-size: 14px; color: #777; }

.status-badge {
    font-size: 12px;
    padding: 5px 10px;
    border-radius: 12px;
    font-weight: bold;
    text-align: center;
}

.status-pendente { background-color: #fff3cd; color: #856404; border: 1px solid #ffeeba; }
.status-aceito { background-color: #d4edda; color: #155724; border: 1px solid #c3e6cb; }

/* Botão Flutuante (FAB) para Adicionar */
.fab-btn {
    position: fixed;
    bottom: 85px; /* Acima do menu inferior */
    right: 20px;
    width: 55px;
    height: 55px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    cursor: pointer;
    border: none;
    z-index: 100;
}
.fab-btn:hover { background-color: var(--primary-hover); transform: scale(1.05); }

/* Centralização do botão Mostrar Mais e mensagens finais */
.load-more-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 20px;
    margin-bottom: 20px;
    text-align: center;
}