/* 1. RESET BÁSICO E CONFIGURAÇÕES GLOBAIS */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Paleta de Cores v2.0 - Moderna e Vibrante */
    --color-background: #0d1117;
    --color-surface: #161b22;
    --color-primary: #58a6ff;
    --color-primary-dark: #3b82f6;
    --color-text-primary: #c9d1d9;
    --color-text-secondary: #8b949e;
    --color-border: #30363d;

    /* Fontes */
    --font-primary: 'Montserrat', sans-serif;

    /* Espaçamentos e Medidas */
    --header-height: 80px;
    --container-width: 1120px;
    --container-padding: 1.5rem;
    --border-radius: 8px;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    background-color: var(--color-background);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { text-wrap: balance; color: #ffffff; }
p { text-wrap: pretty; line-height: 1.7; max-width: 65ch; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.3s ease; }
a:hover { color: #ffffff; }

/* 2. COMPONENTES REUTILIZÁVEIS */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}
section {
    padding-block: clamp(4rem, 10vh, 6rem);
}
.section-title {
    font-size: clamp(2.2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    text-align: center;
}
.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto clamp(2rem, 5vh, 4rem);
}
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    border-radius: var(--border-radius);
    font-weight: 700;
    text-align: center;
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
    border: none;
    cursor: pointer;
}
.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-background);
}
.btn-primary:hover {
    background-color: var(--color-primary-dark);
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(88, 166, 255, 0.2);
}
.btn-whatsapp {
    background-color: #25D366;
    color: #ffffff;
}
.btn-whatsapp:hover {
    background-color: #1DAA50;
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(37, 211, 102, 0.2);
}

/* 3. HEADER E NAVEGAÇÃO */
.header {
    position: fixed; top: 0; left: 0; width: 100%;
    height: var(--header-height);
    display: flex; align-items: center; z-index: 1000;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}
.header.scrolled {
    background-color: rgba(13, 17, 23, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); /* Suporte para Safari */
    border-bottom: 1px solid var(--color-border);
}
.header .container {
    display: flex; justify-content: space-between; align-items: center; width: 100%;
}
.logo { font-size: 1.5rem; font-weight: 800; color: #ffffff; }

.nav-menu { list-style: none; display: flex; gap: 2rem; }
.nav-menu a { color: var(--color-text-primary); font-weight: 500; position: relative; padding-bottom: 0.5rem; }
.nav-menu a::after {
    content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
    width: 0; height: 2px; background-color: var(--color-primary);
    transition: width 0.3s ease;
}
.nav-menu a:hover::after { width: 100%; }
.menu-hamburguer { display: none; background: transparent; border: none; cursor: pointer; z-index: 1001;}
.menu-hamburguer span { display: block; width: 24px; height: 2px; background-color: var(--color-text-primary); border-radius: 10px; transition: all 0.3s linear; transform-origin: 1px; margin: 5px 0;}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed; top: var(--header-height); right: -100%;
        width: 80%; max-width: 300px; height: calc(100vh - var(--header-height));
        flex-direction: column; align-items: center; justify-content: center;
        gap: 2.5rem; background-color: var(--color-surface);
        transition: right 0.4s ease-in-out;
        border-left: 1px solid var(--color-border);
    }
    .nav-menu.active { right: 0; }
    .nav-menu a { font-size: 1.2rem; }
    .menu-hamburguer { display: block; }
    .menu-hamburguer.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .menu-hamburguer.active span:nth-child(2) { opacity: 0; }
    .menu-hamburguer.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
}

/* 4. SEÇÕES ESPECÍFICAS */

/* Hero com Slider */
.hero {
    height: 90vh;
    min-height: 600px;
    padding: 0;
    position: relative;
    overflow: hidden;
    background: linear-gradient(to top, var(--color-background) 5%, transparent 50%), 
                radial-gradient(ellipse at top, #1a2c4b, var(--color-background) 70%);
}

.hero-slider-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.slide {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.8s ease-in-out, visibility 0.8s ease-in-out;
    z-index: 0;
}

.slide.active-slide {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    z-index: 10;
}

.hero-content {
    max-width: 750px;
    text-align: center;
    margin: 0 auto;
    padding: var(--container-padding);
}

.hero-content span, 
.hero-content h1, 
.hero-content p, 
.hero-content .btn {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide.active-slide .hero-content span { 
    opacity: 1; 
    transform: translateY(0); 
    transition-delay: 0.2s; 
}

.slide.active-slide .hero-content h1 { 
    opacity: 1; 
    transform: translateY(0); 
    transition-delay: 0.35s; 
}

.slide.active-slide .hero-content p { 
    opacity: 1; 
    transform: translateY(0); 
    transition-delay: 0.5s; 
}

.slide.active-slide .hero-content .btn { 
    opacity: 1; 
    transform: translateY(0); 
    transition-delay: 0.65s; 
}

.hero-content span { 
    display: block; 
    color: var(--color-primary); 
    font-weight: 700; 
    margin-bottom: 1rem; 
    font-size: clamp(0.9rem, 2vw, 1.1rem);
}

.hero-content h1 { 
    font-size: clamp(2.5rem, 5vw, 4rem); 
    font-weight: 800; 
    margin-bottom: 1.5rem; 
    line-height: 1.2;
}

.hero-content p { 
    font-size: clamp(1rem, 2.5vw, 1.2rem); 
    color: var(--color-text-secondary); 
    margin-bottom: 2.5rem; 
    margin-left: auto;
    margin-right: auto;
}

.slider-nav {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    z-index: 20;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.3);
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
    padding: 0;
}

.nav-dot:hover {
    background-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.2);
}

.nav-dot.active-dot {
    background-color: var(--color-primary);
    transform: scale(1.3);
}

/* Sobre */
.about .container { display: grid; grid-template-columns: 1fr 1.5fr; gap: 4rem; align-items: center; }
.about-image img { border-radius: var(--border-radius); border: 1px solid var(--color-border); }
.about-content h2 { font-size: clamp(2rem, 5vw, 2.5rem); margin-bottom: 1.5rem; }
.about-content p { color: var(--color-text-secondary); margin-bottom: 1rem; }
@media (max-width: 768px) { .about .container { grid-template-columns: 1fr; } .about-image { max-width: 300px; margin: 0 auto;} .about-content { text-align: center;} }

/* Formação */
.education { background-color: var(--color-surface); }
.education-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.card {
    background-color: var(--color-background);
    padding: 2rem; border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    transition: transform 0.3s ease, border-color 0.3s ease;
}
.card:hover { transform: translateY(-5px); border-color: var(--color-primary); }
.card h3 { color: var(--color-primary); margin-bottom: 0.5rem; }
.card p { color: var(--color-text-secondary); max-width: 100%; }

/* Experiência (Timeline) */
.timeline { position: relative; max-width: 800px; margin: 0 auto; }
.timeline::after {
    content: ''; position: absolute; width: 2px;
    background-color: var(--color-border); top: 0; bottom: 0; left: 50%; margin-left: -1px;
}
.timeline-item { padding: 10px 40px; position: relative; width: 50%; }
.timeline-item:nth-child(odd) { left: 0; text-align: right;}
.timeline-item:nth-child(even) { left: 50%; text-align: left;}
.timeline-item::after {
    content: ''; position: absolute; width: 16px; height: 16px; right: -8px;
    background-color: var(--color-background); border: 2px solid var(--color-primary);
    top: 25px; border-radius: 50%; z-index: 1;
}
.timeline-item:nth-child(even)::after { left: -8px; }
.timeline-content { padding: 20px; background-color: var(--color-surface); position: relative; border-radius: var(--border-radius); border: 1px solid transparent; transition: border-color 0.3s ease; }
.timeline-item:hover .timeline-content { border-color: var(--color-border); }
.timeline-content h3 { font-size: 1.2rem; }
.timeline-content .date { display: block; font-size: 0.9rem; color: var(--color-primary); margin: 0.5rem 0; }
.timeline-content p { color: var(--color-text-secondary); font-size: 0.95rem; max-width: 100%; }
@media (max-width: 768px) {
    .timeline::after { left: 20px; }
    .timeline-item, .timeline-item:nth-child(odd), .timeline-item:nth-child(even) { width: 100%; padding-left: 50px; padding-right: 0; left: 0; text-align: left; }
    .timeline-item::after { left: 12px; }
}

/* Cursos */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}
.course-group {
    background-color: var(--color-surface);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}
.course-group h4 {
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}
.course-group ul { list-style: none; padding-left: 0; }
.course-group li {
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
    position: relative;
    padding-left: 20px;
}
.course-group li::before {
    content: '✓';
    color: var(--color-primary);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Contato */
.contact { background-color: var(--color-surface); }
.contact-header { text-align: center; margin-bottom: 3rem; }
.contact-header .section-title { margin-bottom: 1rem; }
.contact-header .section-subtitle { margin-bottom: 2rem; }
.contact-form {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}
.form-group { display: flex; flex-direction: column; }
.form-group.full-width { grid-column: 1 / -1; }
.contact-form label { margin-bottom: 0.5rem; font-size: 0.9rem; color: var(--color-text-secondary); }
.contact-form input, .contact-form textarea {
    background: var(--color-background); border: 1px solid var(--color-border);
    border-radius: var(--border-radius); padding: 0.9rem; color: var(--color-text-primary);
    font-family: var(--font-primary); font-size: 1rem; transition: border-color 0.3s, box-shadow 0.3s;
}
.contact-form input:focus, .contact-form textarea:focus {
    outline: none; border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}
#form-status { grid-column: 1 / -1; text-align: center; margin-top: 1rem; font-weight: 500;}
@media (max-width: 600px) { .contact-form { grid-template-columns: 1fr; } }

/* FOOTER */
.footer { padding: 2.5rem 0; text-align: center; color: var(--color-text-secondary); font-size: 0.9rem; border-top: 1px solid var(--color-border); }

/* ANIMAÇÕES DE SCROLL */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }