/* ===== VARIÁVEIS: PALETA AZUL PREMIUM / DARK MODE ===== */
:root {
    --bg-primary: #050914;       /* Azul quase preto (Fundo principal) */
    --bg-secondary: #0A1128;     /* Azul profundo (Fundo secundário) */
    --surface: #121A30;          /* Superfície dos cards */
    --border: rgba(0, 212, 255, 0.15); /* Borda sutil ciano */
    
    --text-primary: #F8FAFC;     /* Branco gelo para leitura */
    --text-secondary: #94A3B8;   /* Cinza azulado para textos de apoio */
    
    --accent: #00D4FF;           /* Ciano Neon (Destaque principal) */
    --accent-glow: rgba(0, 212, 255, 0.4);
    --accent-secondary: #3B82F6; /* Azul Royal (Gradientes) */
    --danger: #EF4444;           /* Vermelho para alertas de burnout */

    --font-main: 'Inter', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    
    --radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== RESET & BASE ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ===== TIPOGRAFIA & UTILITÁRIOS ===== */
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; }
.text-gradient {
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ===== BOTÕES ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: var(--bg-primary);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 25px var(--accent-glow); }
.btn-glow { box-shadow: 0 0 20px var(--accent-glow); }
.btn-ghost { color: var(--text-secondary); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--accent); border-color: var(--accent); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-primary); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ===== HEADER ===== */
.header {
    position: fixed; top: 0; width: 100%; z-index: 1000;
    background: rgba(5, 9, 20, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
}
.header-container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; letter-spacing: 1px; display: flex; align-items: center; gap: 8px; }
.logo-icon { color: var(--accent); font-size: 1.5rem; }
.logo-highlight { color: var(--accent); }
.nav-desktop { display: flex; gap: 32px; }
.nav-desktop a { color: var(--text-secondary); font-weight: 500; transition: var(--transition); }
.nav-desktop a:hover { color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: 20px; }

/* Lang Toggle */
.lang-toggle { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; font-weight: 600; }
.lang-btn { background: none; border: none; color: var(--text-secondary); cursor: pointer; transition: var(--transition); padding: 4px; }
.lang-btn.active { color: var(--accent); }
.lang-divider { color: var(--border); }

/* ===== HERO COM IMAGEM DE FUNDO ===== */
.hero {
    min-height: 100vh;
    display: flex; align-items: center;
    position: relative;
    padding-top: 80px;
    text-align: center;
    overflow: hidden;
}

.hero-bg-image {
    position: absolute;
    inset: 0;
    background-image: url('https://images.unsplash.com/photo-1534438327276-14e5300c3a48?w=1920&q=80');
    background-size: cover;
    background-position: center;
    opacity: 0.3;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, 
        rgba(5, 9, 20, 0.8) 0%, 
        rgba(5, 9, 20, 0.95) 100%);
    z-index: 1;
}

.hero-neural-network {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
    z-index: 1;
}

.hero-content { position: relative; z-index: 2; }
.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}
.hero-title { font-size: clamp(2.5rem, 6vw, 4.5rem); margin-bottom: 24px; }
.hero-subtitle { font-size: 1.2rem; color: var(--text-secondary); max-width: 700px; margin: 0 auto 40px; }
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Visualização da Conexão Mente-Músculo */
.mind-muscle-visual {
    position: relative;
    margin-top: 80px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 100px;
}

.brain-pulse {
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    border-radius: 50%;
    position: relative;
    animation: pulse 2s ease-in-out infinite;
}

.brain-pulse::before {
    content: '🧠';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 40px;
}

.neural-connection-line {
    position: absolute;
    width: 200px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
    animation: dataFlow 2s linear infinite;
}

.neural-connection-line::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    box-shadow: 0 0 10px var(--accent);
}

.muscle-fiber {
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, var(--accent-secondary) 0%, transparent 70%);
    border-radius: 50%;
    position: relative;
}

.muscle-fiber::before {
    content: '💪';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 40px;
}

.data-stream {
    position: absolute;
    bottom: 0;
    display: flex;
    gap: 30px;
    font-family: 'Space Grotesk', monospace;
    font-size: 0.85rem;
    color: var(--accent);
}

.data-point {
    background: rgba(0, 212, 255, 0.1);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--border);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

@keyframes dataFlow {
    0% { opacity: 0; }
    50% { opacity: 1; }
    100% { opacity: 0; }
}

/* ===== SEÇÃO DE IMAGEM: CONEXÃO NEURAL ===== */
.section-neural-connection {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.neural-showcase {
    display: grid;
    grid-template-columns: 1fr 1.5fr 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
}

.neural-image-left, .neural-image-right {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.neural-image-left img, .neural-image-right img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.neural-image-left:hover img, .neural-image-right:hover img {
    transform: scale(1.05);
}

.image-overlay-data {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(5, 9, 20, 0.9);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.data-ring {
    text-align: center;
}

.ring-value {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}

.ring-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

.holographic-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.5;
    pointer-events: none;
}

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

.neural-content h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
}

.neural-content p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.neural-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 8px;
}

/* ===== SECTIONS GERAIS ===== */
.section { padding: 120px 0; position: relative; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-header h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 16px; }
.section-header p { color: var(--text-secondary); font-size: 1.1rem; }

/* ===== PAIN SECTION ===== */
.section-pain {
    position: relative;
    overflow: hidden;
}

.pain-bg-image {
    position: absolute;
    inset: 0;
    background-image: url('https://images.unsplash.com/photo-1517836357463-d25dfeac3438?w=1920&q=80');
    background-size: cover;
    background-position: center;
    opacity: 0.1;
    z-index: 0;
}

.pain-grid { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 64px; 
    align-items: center;
    position: relative;
    z-index: 1;
}

.pain-text h2 { font-size: 2.2rem; margin-bottom: 24px; }
.pain-text p { color: var(--text-secondary); font-size: 1.1rem; line-height: 1.8; }

.data-card { 
    padding: 32px; 
    border-radius: var(--radius); 
    text-align: center;
    position: relative;
    overflow: hidden;
}

.data-label { color: var(--text-secondary); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.data-value { font-family: var(--font-display); font-size: 2rem; font-weight: 700; margin-bottom: 16px; }
.data-value.red { color: var(--danger); }
.data-bar { height: 8px; background: var(--surface); border-radius: 4px; overflow: hidden; }
.bar-fill { height: 100%; width: 85%; background: var(--danger); border-radius: 4px; box-shadow: 0 0 10px var(--danger); }

.brain-overload-visual {
    margin-top: 30px;
    position: relative;
}

.brain-icon {
    font-size: 60px;
    display: block;
    animation: shake 0.5s ease-in-out infinite;
}

.warning-signals {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.signal {
    width: 10px;
    height: 10px;
    background: var(--danger);
    border-radius: 50%;
    animation: blink 0.3s ease-in-out infinite;
}

.signal:nth-child(2) { animation-delay: 0.1s; }
.signal:nth-child(3) { animation-delay: 0.2s; }

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* ===== SEÇÃO TECNOLOGIA E MOVIMENTO ===== */
.section-tech-movement {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.tech-movement-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.tech-content h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
}

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

.tech-image-container {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.tech-image-container img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.ai-scanning-overlay {
    position: absolute;
    inset: 0;
    border: 2px solid var(--accent);
    border-radius: var(--radius);
    overflow: hidden;
}

.scan-line {
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
    animation: scan 3s linear infinite;
}

@keyframes scan {
    0% { top: 0; }
    100% { top: 100%; }
}

.tracking-points .point {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--accent);
    animation: trackPulse 1.5s ease-in-out infinite;
}

@keyframes trackPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.5; }
}

/* ===== SCIENCE (SOLUTION) ===== */
.section-science {
    position: relative;
    overflow: hidden;
}

.science-bg-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.science-grid { 
    display: grid; 
    grid-template-columns: repeat(3, 1fr); 
    gap: 32px;
    position: relative;
    z-index: 1;
}

.glass-card {
    background: rgba(18, 26, 48, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 32px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card-bg-image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.1;
    transition: opacity 0.3s ease;
}

.glass-card:hover .card-bg-image {
    opacity: 0.2;
}

.glass-card:hover { 
    transform: translateY(-8px); 
    border-color: var(--accent); 
    box-shadow: 0 10px 30px rgba(0,0,0,0.5); 
}

.card-icon { 
    font-size: 2.5rem; 
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.glass-card h3 { 
    font-size: 1.3rem; 
    margin-bottom: 16px; 
    color: var(--accent);
    position: relative;
    z-index: 1;
}

.glass-card p { 
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

/* ===== SEÇÃO BIOHACKING ===== */
.section-biohacking {
    position: relative;
    overflow: hidden;
    color: white;
}

.biohacking-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.biohacking-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
}

.biohacking-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.biohacking-content h2 {
    font-size: 3rem;
    margin-bottom: 24px;
}

.biohacking-content p {
    font-size: 1.2rem;
    margin-bottom: 60px;
    color: rgba(255, 255, 255, 0.9);
}

.biohacking-metrics {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.metric-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
}

.metric-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.metric-icon {
    font-size: 3rem;
    margin-bottom: 10px;
}

.metric-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 5px;
}

.metric-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

/* ===== PERSONAS ===== */
.personas-grid { 
    display: grid; 
    grid-template-columns: repeat(3, 1fr); 
    gap: 32px; 
}

.persona-card {
    background: linear-gradient(180deg, var(--surface) 0%, var(--bg-secondary) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0;
    transition: var(--transition);
    overflow: hidden;
    position: relative;
}

.persona-image {
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.persona-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, var(--surface) 100%);
}

.persona-card:hover { 
    border-color: var(--accent-secondary);
    transform: translateY(-8px);
}

.persona-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent);
    background: rgba(0, 212, 255, 0.1);
    padding: 4px 12px;
    border-radius: 50px;
    margin: -15px auto 16px;
    position: relative;
    z-index: 1;
    width: fit-content;
    left: 50%;
    transform: translateX(-50%);
}

.persona-card h3 { 
    font-size: 1.5rem; 
    margin-bottom: 12px;
    padding: 0 24px;
    text-align: center;
}

.persona-card p { 
    color: var(--text-secondary);
    padding: 0 24px 24px;
    text-align: center;
}

/* ===== PRICING ===== */
.pricing-grid { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 32px; 
    max-width: 900px; 
    margin: 0 auto; 
}

.pricing-card { 
    padding: 48px 40px; 
    position: relative;
    background: rgba(18, 26, 48, 0.8);
    backdrop-filter: blur(10px);
}

.pricing-card.highlight { 
    border-color: var(--accent); 
    background: linear-gradient(180deg, rgba(0, 212, 255, 0.1) 0%, rgba(18, 26, 48, 0.9) 100%);
}

.badge-popular {
    position: absolute; 
    top: -12px; 
    left: 50%; 
    transform: translateX(-50%);
    background: var(--accent); 
    color: var(--bg-primary);
    font-size: 0.75rem; 
    font-weight: 700; 
    padding: 6px 16px; 
    border-radius: 50px;
}

.pricing-card h3 { 
    font-size: 1.5rem; 
    margin-bottom: 16px;
    text-align: center;
}

.price { 
    font-family: var(--font-display); 
    font-size: 3rem; 
    font-weight: 700; 
    margin-bottom: 32px;
    text-align: center;
    color: var(--accent);
}

.price span { 
    font-size: 1rem; 
    color: var(--text-secondary); 
    font-weight: 400; 
}

.features { 
    list-style: none; 
    margin-bottom: 32px; 
}

.features li { 
    margin-bottom: 12px; 
    color: var(--text-secondary);
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.features li:last-child {
    border-bottom: none;
}

.pricing-card .btn { 
    width: 100%; 
}

/* ===== FOOTER ===== */
.footer { 
    border-top: 1px solid var(--border); 
    padding: 64px 0 32px; 
    background: var(--bg-secondary);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.footer-container { 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    text-align: center; 
    gap: 24px; 
}

.footer-brand p { 
    color: var(--text-secondary); 
    margin-top: 8px; 
}

.footer-links { 
    display: flex; 
    gap: 24px; 
    flex-wrap: wrap; 
    justify-content: center; 
}

.footer-links a { 
    color: var(--text-secondary); 
    font-size: 0.9rem; 
    transition: var(--transition); 
}

.footer-links a:hover { 
    color: var(--accent); 
}

.footer-copy { 
    color: var(--text-secondary); 
    font-size: 0.85rem; 
    margin-top: 24px; 
}

/* ===== GLASSMORPHISM UTILITY ===== */
.glass {
    background: rgba(18, 26, 48, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
}

/* ===== ANIMAÇÕES ===== */
.fade-in { 
    opacity: 0; 
    transform: translateY(30px); 
    transition: opacity 0.8s ease, transform 0.8s ease; 
}

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

/* ===== RESPONSIVO ===== */
@media (max-width: 1024px) {
    .neural-showcase {
        grid-template-columns: 1fr;
    }
    
    .neural-image-left, .neural-image-right {
        display: none;
    }
    
    .tech-movement-showcase,
    .pain-grid {
        grid-template-columns: 1fr;
    }
    
    .science-grid,
    .personas-grid {
        grid-template-columns: 1fr;
    }
    
    .mind-muscle-visual {
        display: none;
    }
}

@media (max-width: 900px) {
    .nav-desktop { display: none; }
    .hero-title { font-size: 2.5rem; }
    .section { padding: 80px 0; }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .biohacking-content h2 {
        font-size: 2rem;
    }
}

@media (max-width: 600px) {
    .neural-stats {
        flex-direction: column;
        gap: 30px;
    }
    
    .biohacking-metrics {
        flex-direction: column;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
}