Webleb - HTML UI Elements - Portfolio generale (passo dopo passo)

<!DOCTYPE html>
<html lang="pt-BR">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Portfólio</title>
    <link rel="stylesheet" href="styles.css">
    <head>
        
        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0-beta3/css/all.min.css">
    </head>

<body>
        <header>
            <h1>Meu Portfólio</h1>
            <nav>
                <ul>
                    <li><a href="#sobre">Sobre</a></li>
                    <li><a href="#projetos">Projetos</a></li>
                    <li><a href="#contato">Contato</a></li>
                </ul>
            </nav>
            <i id="toggle-theme" class="fas fa-adjust theme-icon"></i>
        </header>
        
    </body>

<section id="sobre">
        <h2>Sobre Mim</h2>
        <p>Descrição sobre você e suas habilidades.</p>
    </section>

<section id="projetos">
        <h2>Projetos</h2>
        <div class="projetos-container">
            
            <div class="projeto" data-category="web">
                <img src="https://cdn.discordapp.com/attachments/1277796210916462645/1289764974872498318/Moletom.png?ex=671eecbc&is=671d9b3c&hm=7a5fe7af545d6cd7229d9787538bc5b4fe9b3c40579a2a2b528c949b53d7bd18&" alt="Projeto 1">
                <h3>Projeto 1</h3>
                <p>Descrição do projeto 1.</p>
            </div>
            
            <div class="projeto" data-category="web">
                <img src="https://cdn.discordapp.com/attachments/1277796210916462645/1289764882199220234/Mackbook_Pro.png?ex=671eeca6&is=671d9b26&hm=f29756222fbf5aa18a6fcfcf1a54c286f44e8a21025e65c803d22cf9e3fae8ea&" alt="Projeto 2">
                <h3>Projeto 2</h3>
                <p>Descrição do projeto 2.</p>
            </div>
            
            <div class="projeto" data-category="web">
                <img src="https://cdn.discordapp.com/attachments/1277796210916462645/1289764869255598101/GARRAFA_3.png?ex=671eeca3&is=671d9b23&hm=976674f0d9011e00106a1cc9cf51bf82caaad0f885e13079a30680b3f6dab80b&" alt="Projeto 3">
                <h3>Projeto 3</h3>
                <p>Descrição do projeto 3.</p>
            </div>
            
        </div>
    </section>

<section id="contato">
        <section id="contato">
            <h2>Contato</h2>
            <a href="https://example.com/contact" class="contato-button">
                <i class="fas fa-envelope"></i> 
            </a>
        </section>
    </section>

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

:root {
    --primary-color: #111321; /* Yellow for primary elements */
    --background-color: #b4a196; /* Light brown background */
    --text-color: #111321; /* Dark text color */
    --project-background-color: #BAC2FE; /* Light blue for project backgrounds */
    --button-background-color: #fff; /* White button color for light mode */
    --button-text-color: #111321; /* Dark text color for light mode */
}

body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

header {
    background-color: var(--primary-color);
    color: #fff;
    padding: 10px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.55);
    position: relative;
    border-radius: 30px; /* Rounded corners */
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    margin-top: 7px; /* Add margin to move the header down */
}

header:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    transition: border-bottom 0.3s;
    position: relative;
}

nav ul li a::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: #fff;
    transition: width 0.3s;
    position: absolute;
    bottom: -2px;
    left: 0;
}

nav ul li a:hover::after {
    width: 100%;
}

#banner img {
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

section {
    padding: 40px 20px;
    text-align: center;
}

.categorias {
    margin: 20px 0;
    text-align: center;
}

.categoria {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    padding: 10px 20px;
    margin: 5px;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s, transform 0.2s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.categoria:hover {
    background-color: #e68900;
    transform: translateY(-3px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.2);
}

.projetos-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.projeto {
    margin: 10px;
    padding: 20px;
    width: 250px;
    background-color: var(--project-background-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.55); /* Sombra leve */
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    position: relative;
    overflow: hidden;
    transform: translateY(10px);
    opacity: 0;
    animation: fadeInUp 0.5s forwards;
    animation-delay: calc(var(--i) * 0.1s);
}

.projeto:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.projeto::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    border: 2px solid transparent;
    box-sizing: border-box;
    transition: border-color 0.4s ease;
}

.projeto:hover::before {
    border-color: var(--highlight-color, rgb(161, 161, 161)); /* Borda laranja */
    animation: borderExplosion 1s ease forwards;
}

/* Efeito de explosão da borda */
@keyframes borderExplosion {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.5); /* Começo da explosão */
    }
    50% {
        box-shadow: 0 0 10px 10px rgba(190, 190, 190, 0.2); /* Expansão */
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 165, 0, 0); /* Retorno */
    }
}

.projeto::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.15), transparent 70%);
    transform: scale(0);
    transition: transform 0.5s ease;
    border-radius: 50%;
    opacity: 0;
}

.projeto:hover::after {
    transform: scale(1.3); /* Brilho suave */
    opacity: 1;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

footer {
    background-color: var(--primary-color);
    color: #fff;
    text-align: center;
    padding: 20px;
    box-shadow: 0 -4px 8px rgba(0, 0, 0, 0.1);
}

/* Tema escuro */
body.dark-mode {
    --background-color: #2B2B2B; /* Dark gray background */
    --text-color: #FFFFFF; /* White text color */
    --project-background-color: #2B2B2B; /* Dark gray for project backgrounds */
    --button-background-color: #2B2B2B; /* Dark gray button background */
    --button-text-color: #FFFFFF; /* White button text color */
    --primary-color: #25D162; /* Green for primary elements */
}

.theme-icon {
    position: absolute;
    top: 20px;
    right: 20px;
    cursor: pointer;
    font-size: 24px;
    color: #fff;
    transition: color 0.3s;
}

.theme-icon:hover {
    color: var(--primary-color);
}

.projeto img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 10px;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.contato-button {
    position: relative;
    background-color: var(--button-background-color);
    color: var(--button-text-color);
    border: none;
    padding: 15px 30px;
    margin: 20px 0;
    cursor: pointer;
    border-radius: 25px;
    font-size: 16px;
    font-weight: bold;
    overflow: hidden;
    transition: background-color 0.3s, transform 0.2s, box-shadow 0.3s;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

.contato-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 25px;
    box-sizing: border-box;
    border: 2px solid var(--primary-color);
    transform: scale(1);
    opacity: 1;
    animation: pulseBorder 2s infinite;
}

@keyframes pulseBorder {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.0;
    }
}

@keyframes blinkEffect {
    0%, 100% {
        background-color: var(--button-background-color);
    }
    50% {
        background-color: var(--button-background-color-hover);
    }
}

.contato-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
    animation: blinkEffect 1.5s infinite;
}

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