/* Variáveis CSS para fácil personalização */
:root {
    --primary-color: #00ff9d;
    --secondary-color: #00b8ff;
    --dark-color: #0a0a0a;
    --light-color: #1a1a1a;
    --text-color: #e0e0e0;
    --text-light: #a0a0a0;
    --white: #ffffff;
    --card-bg: #1e1e1e;
    --transition: all 0.3s ease;
}

/* Tema Claro - Nova paleta mais suave e legível */
body.light-theme {
    --primary-color: #2563eb;        /* Azul mais vibrante */
    --secondary-color: #4f46e5;      /* Azul-roxo */
    --dark-color: #f8fafc;            /* Fundo claro quase branco */
    --light-color: #e2e8f0;           /* Cinza claro para seções alternadas */
    --text-color: #1e293b;             /* Texto principal em azul muito escuro */
    --text-light: #475569;             /* Texto secundário em cinza-azulado */
    --white: #ffffff;                   /* Branco puro */
    --card-bg: #ffffff;                 /* Cards brancos */
    --hero-gradient-start: #dbeafe;      /* Azul claríssimo */
    --hero-gradient-end: #ede9fe;        /* Roxo claríssimo */
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--dark-color);
    transition: background-color 0.3s, color 0.3s;
}

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

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1100;
    background: var(--card-bg);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.theme-toggle:hover {
    transform: scale(1.1);
    background: var(--primary-color);
    color: var(--dark-color);
}

.light-theme .theme-toggle {
    background: var(--white);
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.light-theme .theme-toggle:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* Header e Navegação */
header {
    background: var(--card-bg);
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.light-theme header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo a {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--primary-color);
}

/* Seções */
section {
    padding: 100px 0;
}

section h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    color: var(--white);
    position: relative;
}

.light-theme section h2 {
    color: var(--text-color);
}

section h2::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: var(--primary-color);
    margin: 10px auto;
}

/* Hero Section - Dark theme mantido */
.hero {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    color: var(--white);
    min-height: 100vh;
    display: flex;
    align-items: center;
    margin-top: -70px;
}

/* Hero Section - Light theme nova versão */
.light-theme .hero {
    background: linear-gradient(135deg, var(--hero-gradient-start) 0%, var(--hero-gradient-end) 100%);
    color: var(--text-color);
}

.hero-content {
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.light-theme .hero h1 {
    color: var(--text-color);
}

.highlight {
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(0, 255, 157, 0.3);
}

.light-theme .highlight {
    color: var(--primary-color);
    text-shadow: none;
}

.subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.light-theme .subtitle {
    color: var(--text-light);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--dark-color);
}

.light-theme .btn-primary {
    background: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.light-theme .btn-secondary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
}

.light-theme .btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* Sobre */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: start;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-color);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    text-align: center;
}

.stat {
    padding: 20px;
    background: var(--card-bg);
    border-radius: 10px;
    border: 1px solid #333;
}

.light-theme .stat {
    background: var(--white);
    border: 1px solid var(--light-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Habilidades */
.skills {
    background: var(--light-color);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.skill-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    transition: var(--transition);
    border: 1px solid #333;
}

.light-theme .skill-card {
    background: var(--white);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border: none;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 255, 157, 0.2);
}

.light-theme .skill-card:hover {
    box-shadow: 0 10px 25px rgba(37,99,235,0.15);
}

.skill-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.skill-card h3 {
    margin-bottom: 10px;
    color: var(--white);
}

.light-theme .skill-card h3 {
    color: var(--text-color);
}

.skill-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Projetos */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.project-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    transition: var(--transition);
    border: 1px solid #333;
}

.light-theme .project-card {
    background: var(--white);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border: 1px solid var(--light-color);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 255, 157, 0.15);
    border-color: var(--primary-color);
}

.light-theme .project-card:hover {
    box-shadow: 0 10px 25px rgba(37,99,235,0.15);
}

.project-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.project-card p {
    color: var(--text-light);
    margin-bottom: 15px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.project-tech span {
    background: var(--light-color);
    color: var(--primary-color);
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.light-theme .project-tech span {
    background: var(--light-color);
    color: var(--primary-color);
}

.project-links a {
    color: var(--text-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    transition: var(--transition);
}

.project-links a:hover {
    color: var(--primary-color);
}

.view-more {
    text-align: center;
}

/* Contato */
.contact {
    background: var(--light-color);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--text-color);
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-links a {
    text-decoration: none;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    transition: var(--transition);
}

.contact-links a:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.contact-links i {
    width: 25px;
    color: var(--primary-color);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    padding: 12px;
    border: 1px solid #e5e7eb;
    border-radius: 5px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--card-bg);
    color: var(--text-color);
}

.light-theme .contact-form input,
.light-theme .contact-form textarea {
    background: var(--white);
    color: var(--text-color);
    border: 1px solid var(--light-color);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 255, 157, 0.1);
}

.light-theme .contact-form input:focus,
.light-theme .contact-form textarea:focus {
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

/* Footer */
footer {
    background: var(--card-bg);
    color: var(--white);
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid #333;
}

.light-theme footer {
    background: var(--dark-color);
    color: var(--text-color);
    border-top: 1px solid var(--light-color);
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    color: var(--white);
    font-size: 1.2rem;
    transition: var(--transition);
}

.light-theme .social-links a {
    color: var(--text-color);
}

.social-links a:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
}

.fa-heart {
    color: #ef4444;
}

/* Responsividade */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    footer .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    section h2 {
        font-size: 2rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
}