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

:root {
    --celadon: #AEDCC0;
    --emerald: #7BD389;
    --tropical-mint: #38E4AE;
    --bg-color: #0d1117;
    --text-color: #e6edf3;
    --card-bg: #161b22;
    --border-color: #38E4AE;
}

html {
    font-size: 100%;
    scroll-behavior: smooth;
}


body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}


header {
    width: 100%;
    padding: 60px 20px;
    text-align: center;
    background: linear-gradient(180deg, var(--card-bg) 0%, transparent 100%);
}

header h1 {
    color: var(--celadon);
    font-size: clamp(2.5rem, 8vw, 4rem); /* Tamanho responsivo automático */
    margin-bottom: 10px;
}

header nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 20px;
}

header a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    font-size: 1.6rem;
    transition: 0.3s;
    padding: 12px 25px;
}

header a:hover {
    color: var(--tropical-mint);
    text-shadow: 0 0 10px var(--tropical-mint);
}

main {
    width: 100%;
    max-width: 900px;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    gap: 80px; /* Espaço entre seções */
}

section {
    width: 100%;
}

h2 {
    color: var(--celadon);
    font-size: 2rem;
    margin-bottom: 30px;
    text-transform: uppercase;
    letter-spacing: 3px;
    text-align: left;
}


.card-cyber {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 0 15px rgba(56, 228, 174, 0.1);
    transition: all 0.3s ease;
}

.card-cyber:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 25px rgba(56, 228, 174, 0.3);
    border-color: var(--celadon);
}


#conquistas-e-projetos {
    border-left: 2px solid var(--tropical-mint);
    padding-left: 30px;
    margin-left: 10px;
}

.card-cyber h3 {
    color: var(--tropical-mint);
    margin-bottom: 15px;
}

.card-cyber h3::before {
    content: "▹";
    margin-right: 10px;
}

.card-cyber .data {
    display: inline-block;
    background-color: var(--tropical-mint);
    color: var(--bg-color);
    font-weight: 700;
    font-size: 0.9rem;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 10px;
}

.btn-github {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 15px;
    padding: 10px 20px;
    background-color: transparent;
    border: 2px solid var(--celadon);
    color: var(--celadon);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-github:hover {
    background-color: var(--celadon);
    color: var(--bg-color);
    box-shadow: 0 0 15px rgba(174, 220, 192, 0.4);
}

.icon-btn {
    width: 20px;
    height: 20px;
    filter: grayscale(100%);
}

.btn-github:hover .icon-btn {
    filter: grayscale(0%) brightness(0);
}


footer {
    width: 100%;
    padding: 80px 20px;
    background-color: var(--card-bg);
    text-align: center;
    margin-top: 100px;
}

.contact-links a {
    color: var(--tropical-mint);
    text-decoration: none;
    font-size: 1.2rem;
    margin: 0 15px;
    display: inline-block;
}


.social-icon {
    width: 48px;
    height: 48px;
    margin: 0 15px;
    transition: transform 0.3s ease, filter 0.3s ease;
    filter: grayscale(30%);
}

.social-icon:hover {
    transform: scale(1.15);
    filter: grayscale(0%) brightness(1.2);
}


@media (max-width: 768px) {
    header h1 { font-size: 2.2rem; }
    h2 { font-size: 1.5rem; }
    #conquistas-e-projetos { padding-left: 20px; }
}

.profile-img {
    width: 420px;
    height: 420px;
    border-radius: 50%;
    border: 10px solid var(--tropical-mint);
    box-shadow: 0 0 60px rgba(56, 228, 174, 0.7);
    object-fit: cover;
    margin-bottom: 40px;
}

.section-intro {
    margin-bottom: 40px;
    display: block;
}