File: public/assets/css/style.css

/* 
Estrutura SMACSS
Base: Estilos globais e reset.
Layout: Estruturas principais da página.
Module: Componentes reutilizáveis.
State: Estados como dark mode.
Theme: Variáveis e temas.

*/
/* CSS Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
/* Base */
:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --background-color: #ffffff;
    --text-color: #333333;

    /* Dark mode variables */
    --background-color-dark: #1e1e1e;
    --text-color-dark: #f5f5f5;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
}

/* Layout */
header {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 1rem;
    text-align: center;
}
nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
}
ul{
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 1rem;
}
main {
    padding: 2rem;
}
.container {
    display: flex;
    flex-direction: column; 
    align-items: center;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
}
footer {
    background-color: var(--secondary-color);
    color: #ffffff;
    text-align: center;
    padding: 1rem;
    position: fixed;
    bottom: 0;
    width: 100%;
}

/* Module */
.button {
    padding: 6px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s, color 0.3s;
}

.primary {
    background-color: var(--primary-color);
    color: #ffffff;
}

.secondary {
    background-color: var(--secondary-color);
    color: #ffffff;
}

/* State */
body.dark-mode {
    background-color: var(--background-color-dark);
    color: var(--text-color-dark);
}

body.dark-mode header,
body.dark-mode footer {
    background-color: var(--text-color-dark);
    color: var(--background-color-dark);
}

body.dark-mode button.primary {
    background-color: var(--text-color-dark);
    color: var(--background-color-dark);
}

/* Theme */
.theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    background-color: var(--primary-color);
    color: #ffffff;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    transition: background-color 0.3s, color 0.3s;
}

body.dark-mode .theme-toggle {
    background-color: var(--text-color-dark);
    color: var(--background-color-dark);
}