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

html {
    scroll-behavior: smooth;
}

/* --- VARIÁVEIS DE COR E FONTES --- */
:root {
    --bg-color: #000000;          
    --text-color: #FFFFFF;        
    --accent-color: #00BFFF;     
    --hover-bg-color: rgba(0, 191, 255, 0.1); 
    --card-bg-color: #0d0d0d;     
    --card-border-color: #333333; 
    
    --font-primary: 'Roboto', sans-serif;
    --font-mono: 'Fira Code', monospace;
}

/* --- ESTILOS GERAIS --- */
body.dark-mode {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease, border-color 0.3s ease;
}

ul {
    list-style: none;
}

.section-title {
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 1.8rem;
    color: var(--text-color);
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

/* --- HEADER E MENU --- */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.9);
}

.logo-image {
    transition: transform 0.3s ease;
}
.logo-image:hover {
    transform: scale(1.05);
}

.main-nav ul {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    position: relative;
    padding-bottom: 3px;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: transparent;
    transition: background-color 0.3s ease, transform 0.3s ease;
    transform: scaleX(0);
}

.nav-link:hover {
    color: var(--accent-color);
}

.nav-link:hover::after {
    background-color: var(--accent-color);
    transform: scaleX(1);
}

/* --- HERO SECTION --- */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg-lines {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: -1;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(45deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(-45deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px, 40px 40px, 20px 20px, 20px 20px;
    background-position: center;
}

.hero-content {
    max-width: 800px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.hero-title {
    font-weight: 700;
    font-size: 5rem;
    line-height: 1.1;
    color: var(--text-color);
    letter-spacing: -2px;
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    font-weight: 300;
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 2rem;
    letter-spacing: 0.5px;
}

/* Botões */
.btn {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 500;
    padding: 0.8rem 2.5rem;
    display: inline-block;
    transition: background-color 0.3s ease, transform 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
    background-color: transparent;
}

.btn-primary:hover {
    background-color: var(--hover-bg-color);
    transform: translateY(-2px);
}

/* --- ABOUT SECTION --- */
.about-section {
    padding: 5rem 0;
    position: relative;
    z-index: 10;
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text-content {
    max-width: 700px;
}

.about-paragraph {
    font-weight: 300;
    font-size: 1.2rem;
    line-height: 1.8;
}

.about-geometry-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-polygon {
    width: 250px;
    height: 250px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transform: rotate(45deg) skew(-15deg);
    position: relative;
}

.about-polygon::after {
    content: '';
    position: absolute;
    top: -10px; left: -10px; right: -10px; bottom: -10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* --- PROJECTS SECTION --- */
.projects-section {
    padding: 5rem 0;
    background-color: #050505;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--card-bg-color);
    border: 1px solid var(--card-border-color);
    transition: transform 0.3s ease, border-color 0.3s ease;
    position: relative;
    overflow: hidden;
}

.project-card-inner {
    padding: 1.5rem;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 2px;
    background-color: var(--accent-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-title {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.project-description {
    font-size: 0.95rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.8);
}

.project-stack {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stack-icon {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.6);
}

.project-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent-color);
    display: inline-block;
    padding-bottom: 3px;
    border-bottom: 1px solid transparent;
}

.project-link:hover {
    border-bottom-color: var(--accent-color);
}

/* --- CONTACT SECTION (LINKS DIRETOS) --- */
.contact-section {
    padding: 5rem 0;
    position: relative;
    z-index: 10;
}

.contact-links-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 2rem;
}

.contact-link-box {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    border: 1px solid var(--card-border-color);
    background-color: var(--card-bg-color);
    color: var(--text-color);
    font-family: var(--font-mono);
    font-size: 1.1rem;
    transition: all 0.3s ease;
    min-width: 220px;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.contact-link-box i {
    font-size: 1.5rem;
    color: var(--text-color);
    transition: color 0.3s ease;
}

.contact-link-box:hover {
    border-color: var(--accent-color);
    transform: translateY(-3px);
    background-color: var(--bg-color);
}

.contact-link-box:hover i {
    color: var(--accent-color);
}

.contact-star-geometry {
    position: absolute;
    width: 60px;
    height: 60px;
    z-index: -1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.contact-star-geometry::before, .contact-star-geometry::after {
    content: '';
    position: absolute;
    border: 2px solid rgba(255, 255, 255, 0.1);
    width: 100%;
    height: 100%;
}

.contact-star-geometry::after {
    transform: rotate(45deg);
}

/* --- FOOTER --- */
.main-footer {
    padding: 2rem 0;
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* --- ANIMAÇÕES (CHAMADAS PELO JS) --- */
.section-hidden {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.section-visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- RESPONSIVIDADE (MEDIA QUERIES) --- */
@media (max-width: 992px) {
    .hero-title { font-size: 3.5rem; }
    .about-grid { grid-template-columns: 1fr; gap: 2rem; text-align: center; }
    .about-text-content { margin: 0 auto; }
    .contact-star-geometry { display: none; }
}

@media (max-width: 768px) {
    .main-header { flex-direction: column; padding-top: 1rem; gap: 1rem; position: relative; }
    .main-nav ul { gap: 1rem; justify-content: center; flex-wrap: wrap; }
    .hero-section { padding-top: 0; height: auto; min-height: 80vh; }
    .hero-title { font-size: 2.5rem; letter-spacing: -1px; }
    .hero-subtitle, .about-paragraph { font-size: 1rem; }
    .contact-link-box { width: 100%; }
}