/* CSS Variables */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --text-primary: #ffffff;
    --text-secondary: #c0c0c0;
    --accent-color: #feaf50;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --border-subtle: rgba(255, 255, 255, 0.1);
    --content-max-width: 1200px;
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    padding-top: 80px;
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Seção 1: O Convite (Hero Section) */
.about-hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, 
        rgba(10, 10, 10, 0.9) 0%, 
        rgba(20, 20, 20, 0.8) 50%, 
        rgba(10, 10, 10, 0.9) 100%
    );
    position: relative;
    overflow: hidden;
}

.about-hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 40% 60%, 
        rgba(254, 175, 80, 0.08) 0%, 
        transparent 70%
    );
    pointer-events: none;
}

.about-hero-inner {
    z-index: 2;
    position: relative;
    max-width: 900px;
    padding: 0 24px;
}

.hero-invitation {
    font-size: 2.2rem;
    font-weight: 300;
    line-height: 1.4;
    color: var(--text-primary);
    margin: 0;
    font-style: normal;
    border: none;
    text-align: center;
    letter-spacing: 0.5px;
}

/* Seção 2: Nossa Abordagem */
.approach-section {
    padding: 8rem 0;
    background: var(--bg-secondary);
}

.approach-container {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.approach-container h2 {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4rem;
    line-height: 1.2;
}

.approach-grid {
    display: grid;
    grid-template-columns: 300px 1fr 300px;
    gap: 3rem;
    align-items: start;
}

.approach-card {
    padding: 3rem 2rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.approach-card:hover {
    transform: translateY(-8px);
    border-color: rgba(254, 175, 80, 0.3);
    box-shadow: 0 12px 40px rgba(254, 175, 80, 0.15);
}

.approach-icon {
    width: 80px;
    height: 80px;
    background: rgba(254, 175, 80, 0.1);
    border: 2px solid rgba(254, 175, 80, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

.approach-icon i {
    font-size: 2rem;
    color: var(--accent-color);
}

.approach-card:hover .approach-icon {
    background: rgba(254, 175, 80, 0.2);
    border-color: var(--accent-color);
    transform: scale(1.1);
}

.approach-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.approach-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Seção 3: Para Quem é Este Espaço? */
.audience-section {
    padding: 8rem 0;
    background: var(--bg-primary);
}

.audience-container {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.audience-container h2 {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    line-height: 1.2;
}

.audience-intro {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 4rem auto;
    line-height: 1.6;
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.audience-card {
    padding: 3rem 2rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.audience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(254, 175, 80, 0.03) 0%, 
        transparent 50%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
}

.audience-card:hover::before {
    opacity: 1;
}

.audience-card:hover {
    transform: translateY(-8px);
    border-color: rgba(254, 175, 80, 0.4);
    box-shadow: 0 16px 48px rgba(254, 175, 80, 0.15);
}

.audience-icon {
    width: 70px;
    height: 70px;
    background: rgba(254, 175, 80, 0.1);
    border: 2px solid rgba(254, 175, 80, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.audience-icon i {
    font-size: 1.8rem;
    color: var(--accent-color);
}

.audience-card:hover .audience-icon {
    background: rgba(254, 175, 80, 0.2);
    border-color: var(--accent-color);
    transform: scale(1.1);
}

.audience-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.3;
    position: relative;
    z-index: 2;
}

.audience-card p {
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
    font-size: 0.95rem;
    position: relative;
    z-index: 2;
}

/* Seção 4: Nosso Ecossistema de Aprendizado */
.ecosystem-section {
    padding: 8rem 0;
    background: var(--bg-secondary);
}

.ecosystem-container {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.ecosystem-container h2 {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4rem;
    line-height: 1.2;
}

.ecosystem-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.ecosystem-card {
    padding: 2.5rem 2rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    text-align: center;
}

.ecosystem-card:hover {
    transform: translateY(-6px);
    border-color: rgba(254, 175, 80, 0.3);
    box-shadow: 0 12px 32px rgba(254, 175, 80, 0.1);
}

.ecosystem-icon {
    width: 60px;
    height: 60px;
    background: rgba(254, 175, 80, 0.1);
    border: 2px solid rgba(254, 175, 80, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
    transition: all 0.3s ease;
}

.ecosystem-icon i {
    font-size: 1.5rem;
    color: var(--accent-color);
}

.ecosystem-card:hover .ecosystem-icon {
    background: rgba(254, 175, 80, 0.15);
    border-color: var(--accent-color);
    transform: scale(1.05);
}

.ecosystem-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.ecosystem-card p {
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
    font-size: 0.9rem;
}

/* Seção 5: O Convite Final */
.convite-final-section {
    padding: 6rem 0;
    width: 100%;
    overflow-x: hidden;
    box-sizing: border-box;
    background: linear-gradient(135deg, 
        rgba(254, 175, 80, 0.03) 0%, 
        transparent 100%
    );
}

.convite-content {
    text-align: center;
    max-width: 700px;
    width: 90%;
    margin: 0 auto;
    padding: 4rem 3rem;
    background: linear-gradient(135deg, 
        var(--glass-bg) 0%, 
        rgba(255, 255, 255, 0.03) 100%
    );
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    backdrop-filter: blur(10px);
    box-sizing: border-box;
}

.convite-content h2 {
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    color: var(--text-primary);
}

.convite-content p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 2.5rem;
    color: var(--text-secondary);
}

.convite-final-btn {
    background: var(--accent-color);
    color: var(--bg-primary);
    padding: 1rem 2.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid var(--accent-color);
}

.convite-final-btn:hover {
    background: transparent;
    color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(254, 175, 80, 0.3);
    text-decoration: none;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .approach-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .audience-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .ecosystem-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .hero-invitation {
        font-size: 1.8rem;
        line-height: 1.3;
    }
    
    .approach-container h2,
    .audience-container h2,
    .ecosystem-container h2,
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .approach-section,
    .audience-section,
    .ecosystem-section {
        padding: 5rem 0;
    }
    
    .convite-final-section {
        padding: 4rem 0;
    }
    
    .convite-content {
        padding: 3rem 2rem;
    }
    
    .convite-content h2 {
        font-size: 2rem;
    }
    
    .audience-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .ecosystem-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .audience-card,
    .ecosystem-card,
    .approach-card {
        padding: 2rem 1.5rem;
    }
    
    .approach-card {
        max-width: 400px;
        margin: 0 auto;
    }
}