/* --- LANDING PAGE DO ZERO: TEMA "SLATE & GOLD" PROFISSIONAL --- */

:root {
    --bg-main: #ffffff;
    --bg-offset: #f8f9fa;
    --text-dark: #212529;
    --text-muted: #6c757d;
    --primary-slate: #34495e;
    --accent-gold: #e67e22;
    --accent-gold-dark: #d35400;
    --border-color: #dee2e6;
    --shadow-soft: rgba(0, 0, 0, 0.08);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-dark);
    line-height: 1.8;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.main-header {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    text-decoration: none;
}
.main-nav { display: flex; gap: 2rem; }
.main-nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}
.main-nav a:hover { color: var(--accent-gold); }

/* Botões */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}
.btn-primary {
    background-color: var(--accent-gold);
    color: #fff;
}
.btn-primary:hover {
    background-color: var(--accent-gold-dark);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(230, 126, 34, 0.3);
}
.btn-large { padding: 16px 40px; font-size: 1.1rem; }

/* Seção Hero */
.hero-section {
    background-color: var(--bg-offset);
    padding: 60px 0;
    overflow: hidden;
}
.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
}
.hero-text {
    flex: 1;
    max-width: 550px;
    text-align: left;
}
.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}
.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}
.hero-image {
    flex: 1;
    max-width: 450px;
}
.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

/* Seção Como Funciona */
.how-it-works-section { padding: 100px 0; }
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 4rem;
}
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    text-align: center;
}
.step-icon {
    font-size: 2.5rem;
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
}
.step-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}
.step-card p { color: var(--text-muted); }

/* Seção Instrumentos */
.instruments-section { padding: 100px 0; background-color: var(--bg-offset); }
.instruments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}
.instrument-card {
    background-color: var(--bg-main);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: 0 5px 20px var(--shadow-soft);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.instrument-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}
.instrument-card .instrument-video-embed {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* Proporção 16:9 */
    background-color: #000;
}
.instrument-card .instrument-video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}
.instrument-card h3 { padding: 1.5rem 1.5rem 0.5rem 1.5rem; }
.instrument-card p { padding: 0 1.5rem 1.5rem 1.5rem; color: var(--text-muted); }

/* Seção Depoimentos */
.testimonials-section { padding: 100px 0; text-align: center; }
.testimonial-card {
    max-width: 700px;
    margin: 0 auto;
}
.testimonial-quote {
    font-size: 1.4rem;
    font-style: italic;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: 2rem;
    position: relative;
    padding: 0 2rem;
}
.testimonial-quote::before, .testimonial-quote::after {
    content: '"';
    font-size: 4rem;
    color: var(--border-color);
    position: absolute;
}
.testimonial-quote::before { top: -1rem; left: 0; }
.testimonial-quote::after { bottom: -3rem; right: 0; }
.testimonial-author { font-weight: 600; color: var(--text-muted); }

/* Seção FAQ */
.faq-section { padding: 100px 0; background-color: var(--bg-offset); }
.faq-accordion { max-width: 750px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border-color); }
.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 1.5rem 0;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-dark);
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}
.faq-question i {
    transition: transform 0.3s ease;
    color: var(--text-muted);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-answer p {
    padding-bottom: 1.5rem;
    color: var(--text-muted);
}
.faq-item.active .faq-question i { transform: rotate(180deg); }

/* Footer */
.main-footer {
    background-color: var(--primary-slate);
    color: #fff;
    padding: 80px 0 0 0;
    text-align: center;
}
.footer-title { font-size: 2.2rem; margin-bottom: 1rem; }
.footer-subtitle { max-width: 500px; margin: 0 auto 2.5rem auto; color: #bdc3c7; }
.copyright-bar {
    margin-top: 60px;
    padding: 1.5rem 0;
    border-top: 1px solid #7f8c8d;
    font-size: 0.9rem;
    color: #95a5a6;
}

/* ========================================= */
/*               RESPONSIVIDADE              */
/* ========================================= */

@media (max-width: 992px) {
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    .hero-text {
        text-align: center;
        order: 2;
    }
    .hero-image {
        order: 1;
        margin-bottom: 2rem;
        max-width: 300px;
    }
    .hero-section {
        padding: 80px 0;
    }
}

/* Regras para tablets e celulares */
@media (max-width: 768px) {
    /* Centraliza o logo no cabeçalho */
    .header-container {
        justify-content: center;
    }

    /* ESCONDE O MENU DE NAVEGAÇÃO */
    .main-nav {
        display: none;
    }

    /* Ajusta títulos e textos para telas menores */
    .section-title {
        font-size: 2rem;
    }
    .hero-subtitle {
        font-size: 1.1rem;
    }
    .testimonial-quote {
        font-size: 1.2rem;
    }
}