/* Reset and Base Styles (Mobile First) */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: #111111;
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    /* Padding para telas pequenas */
    padding: 0 15px; 
}

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
}

.highlight {
    background: linear-gradient(90deg, #00f0b5 0%, #00d095 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #1a1a1a 0%, #0d4d3d 50%, #1a1a1a 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    /* Padding para dispositivos móveis */
    padding: 40px 0;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(0, 240, 181, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(0, 208, 149, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.logo-container {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 1s ease-out;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    border: 2px solid #00f0b5;
    padding: 15px 30px;
    border-radius: 10px;
    display: inline-block;
    background: rgba(0, 240, 181, 0.1);
    backdrop-filter: blur(10px);
}

.main-title {
    /* Tamanho de fonte para mobile */
    font-size: 2.2rem; 
    text-align: center;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.3s both;
    /* Margens horizontais removidas para funcionar em qualquer tela */
}

.subtitle {
    /* Tamanho de fonte para mobile */
    font-size: 1.1rem; 
    text-align: center;
    margin-bottom: 3rem;
    color: #cccccc;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.signup-form {
    max-width: 400px;
    margin: 0 auto;
    animation: fadeInUp 1s ease-out 0.9s both;
}

.signup-form input {
    width: 100%;
    padding: 15px 20px;
    margin-bottom: 15px;
    background: rgba(51, 51, 51, 0.8);
    border: 2px solid transparent;
    border-radius: 10px;
    color: #ffffff;
    font-size: 1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.signup-form input:focus {
    outline: none;
    border-color: #00f0b5;
    background: rgba(51, 51, 51, 1);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 240, 181, 0.3);
}

.signup-form input::placeholder {
    color: #999999;
}

.cta-button {
    width: 100%;
    padding: 18px 30px;
    background: linear-gradient(135deg, #00f0b5 0%, #00d095 100%);
    color: #111111;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 240, 181, 0.4);
}

/* Why IA Section */
.why-ia-section {
    /* Padding para mobile */
    padding: 60px 0; 
    background: linear-gradient(180deg, #111111 0%, #1a1a1a 50%, #111111 100%);
    position: relative;
}

.content-grid {
    display: grid;
    /* Layout de coluna única por padrão */
    grid-template-columns: 1fr; 
    gap: 30px;
    align-items: start;
}

.left-content h2 {
    /* Tamanho de fonte para mobile */
    font-size: 2rem; 
    margin-bottom: 2rem;
    color: #ffffff;
}

.arrow-icon {
    font-size: 3rem;
    color: #00f0b5;
    margin: 2rem 0;
    animation: bounce 2s infinite;
}

.info-card {
    background: rgba(30, 30, 30, 0.8);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid rgba(0, 240, 181, 0.2);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 240, 181, 0.2);
    border-color: rgba(0, 240, 181, 0.4);
}

.card-title {
    color: #00f0b5;
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.benefits-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.benefits-list li {
    margin-bottom: 0.8rem;
    padding-left: 0;
    color: #cccccc;
}

.highlight-text {
    color: #00f0b5;
    font-weight: 600;
    font-size: 1.1rem;
}

.right-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.intro-text {
    font-size: 1.2rem;
    color: #ffffff;
}

.quote-card {
    background: rgba(30, 30, 30, 0.6);
    padding: 25px;
    border-radius: 12px;
    border-left: 4px solid #00f0b5;
    position: relative;
    transition: all 0.3s ease;
}

.quote-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 15px;
    font-size: 3rem;
    color: #00f0b5;
    opacity: 0.3;
}

.quote-card:hover {
    transform: translateX(10px);
    background: rgba(30, 30, 30, 0.8);
}

.conclusion-text {
    font-size: 1.2rem;
    color: #ffffff;
}

/* Community Section */
.community-section {
    /* Padding para mobile */
    padding: 60px 0;
    background: #0a0a0a;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    /* Tamanho de fonte para mobile */
    font-size: 2rem;
    margin-bottom: 2rem;
}

.section-header p {
    font-size: 1.2rem;
    color: #cccccc;
    max-width: 800px;
    margin: 0 auto 1.5rem;
}

.chapters-grid {
    display: grid;
    /* Esta regra já é mobile-first, então mantemos! */
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); /* Ajustado minmax para melhor encaixe em telas menores */
    gap: 30px;
    margin-bottom: 4rem;
}

.chapter-card {
    background: rgba(30, 30, 30, 0.8);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid rgba(0, 240, 181, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.chapter-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #00f0b5, #00d095);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.chapter-card:hover::before {
    transform: scaleX(1);
}

.chapter-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 240, 181, 0.2);
    border-color: rgba(0, 240, 181, 0.3);
}

.chapter-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.chapter-card h3 {
    color: #00f0b5;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.chapter-card p {
    color: #cccccc;
    line-height: 1.6;
}

.section-footer {
    text-align: center;
}

.section-footer p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Target Audience Section */
.target-audience-section {
    /* Padding para mobile */
    padding: 60px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #0d4d3d 50%, #1a1a1a 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2rem; /* Tamanho de fonte para mobile */
    margin-bottom: 1rem;
}

.arrow-down {
    font-size: 2rem;
    color: #00f0b5;
    animation: bounce 2s infinite;
}

.audience-grid {
    display: grid;
    /* Layout de coluna única por padrão */
    grid-template-columns: 1fr;
    gap: 30px;
}

.audience-card {
    background: rgba(30, 30, 30, 0.8);
    padding: 30px; /* Padding ajustado para mobile */
    border-radius: 15px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.audience-card.positive {
    border-color: rgba(0, 240, 181, 0.3);
}

.audience-card.positive:hover {
    border-color: #00f0b5;
    box-shadow: 0 15px 30px rgba(0, 240, 181, 0.2);
}

.audience-card.negative {
    border-color: rgba(255, 99, 99, 0.3);
}

.audience-card.negative:hover {
    border-color: #ff6363;
    box-shadow: 0 15px 30px rgba(255, 99, 99, 0.2);
}

.audience-card h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.audience-card.positive h3 {
    color: #00f0b5;
}

.audience-card.negative h3 {
    color: #ff6363;
}

.audience-card ul {
    list-style: none;
}

.audience-card li {
    margin-bottom: 1.5rem;
    color: #cccccc;
    line-height: 1.6;
}

/* About Section */
.about-section {
    /* Padding para mobile */
    padding: 60px 0;
    background: #0a0a0a;
}

.about-grid {
    display: grid;
    /* Layout de coluna única por padrão */
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

.about-image {
    text-align: center;
}

.profile-image {
    /* Tamanho da imagem para mobile */
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: linear-gradient(135deg, #333333 0%, #1a1a1a 100%);
    margin: 0 auto 2rem;
    border: 4px solid #00f0b5;
    position: relative;
    overflow: hidden;
}

.profile-image::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%2300f0b5"><path d="M12 12c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm0 2c-2.67 0-8 1.34-8 4v2h16v-2c0-2.66-5.33-4-8-4z"/></svg>') center/cover;
    opacity: 0.3;
}

.name-title {
    /* Tamanho da fonte para mobile */
    font-size: 2.5rem;
    color: #00f0b5;
    font-weight: 700;
    line-height: 1;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about-content p {
    font-size: 1.1rem;
    color: #cccccc;
    line-height: 1.7;
}

.about-content strong {
    color: #ffffff;
    font-weight: 600;
}

/* Footer */
.footer {
    background: #000000;
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid #333333;
}

.footer p {
    color: #666666;
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
}

.footer-links a {
    color: #666666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #00f0b5;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}


/* ---------------------------------- */
/* Responsive Design (Mobile First) */
/* ---------------------------------- */

/* Tablet e Desktops pequenos (a partir de 768px) */
@media (min-width: 768px) {
    .container {
        /* Restaura o padding maior */
        padding: 0 20px;
    }

    .main-title {
        font-size: 2.8rem;
        /* Adiciona um max-width para não ficar muito largo */
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
    }

    .subtitle {
        font-size: 1.3rem;
    }
    
    .why-ia-section,
    .community-section,
    .target-audience-section,
    .about-section {
        /* Restaura o padding maior das seções */
        padding: 100px 0;
    }

    .content-grid,
    .audience-grid {
        /* Layout de 2 colunas para tablets e acima */
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }

    .about-grid {
        grid-template-columns: 1fr 2fr;
    }

    .left-content h2 {
        font-size: 2.5rem;
    }

    .section-header h2 {
        font-size: 2.5rem;
    }

    .name-title {
        font-size: 3rem;
    }

    .profile-image {
        width: 250px;
        height: 250px;
    }
}

/* Desktops maiores (a partir de 1024px) */
@media (min-width: 1024px) {
    .main-title {
        font-size: 3rem;
        max-width: 800px; /* Um pouco mais de espaço para o título */
    }

    .section-header h2 {
        font-size: 3rem;
    }
    
    .profile-image {
        width: 300px;
        height: 300px;
    }

    .audience-card {
        padding: 40px;
    }
}