/* =========================================
   RESET & VARIÁVEIS
   ========================================= */
:root {
    /* Cores - Dark Mode Fitness */
    --bg-dark: #0a0a0a;
    --bg-card: #141414;
    --primary: #ccff00; /* Neon Lime - Alta Energia */
    --primary-hover: #b3e600;
    --text-main: #ffffff;
    --text-muted: #a3a3a3;
    --border: #262626;
    
    /* Tipografia */
    --font-heading: 'Sora', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Espaçamento */
    --container-padding: 1.5rem;
    --section-spacing: 5rem;
    
    /* Transição */
    --transition: all 0.3s ease;
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* =========================================
   COMPONENTES
   ========================================= */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.btn-primary, .btn-outline {
    display: inline-flex;
    padding: 1rem 2rem;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 1px;
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
    justify-content: center;
}

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

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

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

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

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1rem;
    width: 100%;
}

.section {
    padding: var(--section-spacing) 0;
}

.section-header {
    margin-bottom: 3rem;
    text-align: center; /* Mobile default */
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.section-subtitle {
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 2px;
}

.highlight {
    color: var(--primary);
}

.text-gradient {
    background: linear-gradient(90deg, #ffffff, #a3a3a3);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* =========================================
   HEADER & NAV
   ========================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
    background: rgba(10, 10, 10, 0.8);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.header.scrolled {
    padding: 1rem 0;
    background: rgba(10, 10, 10, 0.95);
}

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

.logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -1px;
}

.nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background: var(--bg-card);
    padding: 6rem 2rem;
    transition: var(--transition);
    border-left: 1px solid var(--border);
}

.nav-menu.active {
    right: 0;
}

.nav-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.nav-link {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: var(--transition);
}

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

/* CTA dentro do menu mobile */
.nav-cta-mobile {
    margin-top: 1rem;
}
.nav-cta-mobile .btn-primary {
    width: 100%;
}

.btn-cta-header {
    display: none; /* Hidden on mobile */
}

/* Hamburger Menu */
.hamburger {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 6px;
    z-index: 1001;
}

.hamburger span {
    width: 30px;
    height: 2px;
    background-color: var(--text-main);
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
    padding-top: 120px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
}

.badge {
    display: inline-block;
    background: rgba(204, 255, 0, 0.1);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(204, 255, 0, 0.2);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 8vw, 4rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.hero-description {
    color: var(--text-muted);
    font-size: 1.125rem;
    margin-bottom: 2rem;
    max-width: 400px;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    border-top: 1px solid var(--border);
    padding-top: 1.5rem;
}

.stat-item strong {
    display: block;
    font-size: 1.5rem;
    color: var(--text-main);
    font-family: var(--font-heading);
}

.stat-item span {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.hero-image {
    display: none; /* Mobile: hidden or simplified */
}

/* =========================================
   SEÇÕES GERAIS
   ========================================= */
.grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

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

.card .icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.card h3 {
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
}

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

.cta-box {
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    padding: 3rem 1.5rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    text-align: center;
}

.cta-content h2 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.benefits-list {
    margin: 2rem 0;
    text-align: left;
    display: inline-block;
}

.benefits-list li {
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

/* Testimonials & Certifications */
.testimonials-grid {
    display: grid;
    gap: 1.5rem;
}

.testimonial-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.testimonial-card p {
    font-style: italic;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.author strong {
    display: block;
    color: var(--text-main);
}

.author span {
    font-size: 0.875rem;
    color: var(--primary);
}

.certifications {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.certifications span {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.875rem;
    border: 1px solid var(--border);
    color: var(--text-muted);
}

.footer {
    background: var(--bg-card);
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid var(--border);
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.credits {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

/* =========================================
   MEDIA QUERIES (TABLET & DESKTOP)
   ========================================= */
@media (min-width: 768px) {
    .btn-large {
        width: auto;
    }

    .hero-actions {
        flex-direction: row;
    }

    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .testimonials-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
}

@media (min-width: 1024px) {
    .header-container {
        padding: 0 2rem;
    }

    .nav-menu {
        position: static;
        height: auto;
        width: auto;
        background: transparent;
        padding: 0;
        border: none;
    }

    .nav-list {
        flex-direction: row;
        gap: 3rem;
    }
    
    .nav-cta-mobile {
        display: none;
    }

    .nav-link {
        font-size: 1rem;
    }

    .hamburger {
        display: none;
    }

    .btn-cta-header {
        display: inline-flex;
        background: var(--primary);
        color: var(--bg-dark);
        padding: 0.75rem 1.5rem;
        border-radius: 4px;
        font-weight: 700;
        font-size: 0.875rem;
        transition: var(--transition);
    }

    .btn-cta-header:hover {
        background: var(--primary-hover);
    }

    .hero-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        align-items: center;
        gap: 4rem;
    }

    .hero-image {
        display: block;
        position: relative;
    }

    .hero-image img {
        position: relative;
        z-index: 2;
        border-radius: 12px;
        box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }

    .image-bg {
        position: absolute;
        top: -20px;
        right: -20px;
        width: 100%;
        height: 100%;
        border: 2px solid var(--primary);
        border-radius: 12px;
        z-index: 1;
    }
}