/* --- Variáveis e base --- */
:root {
    --bg-dark: #0d0d0d;
    --bg-card: #1a1a1a;
    --bg-section: #141414;
    --text: #f5f5f5;
    --text-muted: #a3a3a3;
    --accent: #C5A022;
    --accent-hover: #e6c04a;
    --border: #2a2a2a;
    --font-heading: "Bebas Neue", sans-serif;
    --font-body: "Inter", sans-serif;
    --space: 1.5rem;
    --radius: 8px;
    --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    /* overflow-x apenas aqui — nunca duplicar no body (quebra scroll no iOS Safari) */
    overflow-x: hidden;
    overscroll-behavior-x: none;
    scrollbar-width: none;
}
html::-webkit-scrollbar {
    display: none;
}

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg-dark);
}

main {
    /* clip não cria scroll container, só recorta visualmente */
    overflow-x: clip;
}

/* Efeito de scroll: seções entram com fade + deslize */
section {
    opacity: 0;
    transform: translateY(36px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
    /* Avisa o browser para preparar as camadas de GPU antes do scroll */
    will-change: transform, opacity;
}
section.is-visible {
    opacity: 1;
    transform: translateY(0);
    /* Libera a camada após a animação — economiza memória GPU */
    will-change: auto;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; margin: 0; }

/* --- Acessibilidade --- */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 3px;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    background: var(--accent);
    color: var(--bg-dark);
    font-weight: 700;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 0 0 var(--radius) var(--radius);
    z-index: 9999;
    transition: top 0.2s;
}
.skip-link:focus {
    top: 0;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 var(--space);
    min-width: 0;
}

body > header.header,
body > footer.footer {
    max-width: 100%;
}

/* --- Botões --- */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-primary {
    background: var(--accent);
    color: var(--bg-dark);
}
.btn-primary:hover {
    background: var(--accent-hover);
    color: var(--bg-dark);
}
.btn-secondary {
    background: transparent;
    color: var(--text);
    border-color: var(--text);
}
.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
}
.btn-outline {
    background: transparent;
    color: var(--accent);
    border-color: var(--accent);
}
.btn-outline:hover {
    background: var(--accent);
    color: var(--bg-dark);
}
.btn-whatsapp {
    background: #25d366;
    color: #fff;
}
.btn-whatsapp:hover { background: #20bd5a; }

/* --- Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space);
    background: rgba(13, 13, 13, 0.95);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}
.logo {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    letter-spacing: 0.1em;
    color: var(--accent);
}
.nav {
    display: flex;
    gap: 2rem;
}
.nav a {
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.2s;
}
.nav a:hover { color: var(--accent); }
.nav a.active { color: var(--accent); }
.header .btn-cta {
    padding: 0.6rem 1.4rem;
    font-size: 0.9rem;
    font-weight: 700;
    background: var(--accent);
    color: var(--bg-dark);
    border-radius: 30px;
    transition: background 0.2s;
}
.header .btn-cta:hover {
    background: var(--accent-hover);
}
.menu-toggle {
    display: none;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    padding: 0;
}
.menu-toggle::before,
.menu-toggle::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--text);
}
.menu-toggle::before { top: 0; }
.menu-toggle::after { bottom: 0; }
.menu-toggle span {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    margin-top: -1px;
    height: 2px;
    background: var(--text);
    display: block;
}

/* --- Hero --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: calc(var(--header-h) + 2rem) var(--space) 2rem;
}

/* Modificar a url */
.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(13,13,13,0.88), rgba(13,13,13,0.88)), url("gold_images/ChatGPT Image 30 de abr. de 2026, 16_55_06.png") center/cover no-repeat;
}
.hero-content {
    position: relative;
    text-align: center;
    max-width: 640px;
}
.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4rem);
    line-height: 1.1;
    letter-spacing: 0.02em;
    margin: 0 0 1rem;
    color: var(--text);
}
.hero p {
    color: var(--text-muted);
    font-size: 1.15rem;
    margin: 0 0 2rem;
}
.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

/* --- About --- */
.about {
    padding: 5rem 0;
    background: var(--bg-section);
}
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}
.about h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    letter-spacing: 0.05em;
    margin: 0 0 0.5rem;
    color: var(--accent);
}
.about-lead {
    font-size: 1.2rem;
    color: var(--text);
    margin-bottom: 1rem;
}
.about-text p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}
.about-image {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.about-image img { width: 100%; height: 100%; object-fit: cover; }

/* --- Aulas --- */
.aulas {
    padding: 5rem 0;
    background: var(--bg-dark);
    overflow-x: hidden;
}
.aulas h2, .planos h2, .localizacao h2, .infraestrutura h2, .faq h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    letter-spacing: 0.05em;
    margin: 0 0 0.5rem;
    text-align: center;
    color: var(--text);
}
.section-sub {
    text-align: center;
    color: var(--text-muted);
    margin: 0 0 2.5rem;
}
.aulas-grid {
    display: flex;
    gap: 1.25rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-left: var(--space);
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    padding-left: var(--space);
    padding-right: var(--space);
    scrollbar-width: none;
}
.aulas-grid::-webkit-scrollbar {
    display: none;
}
.aula-card {
    position: relative;
    flex: 0 0 auto;
    width: min(340px, 78vw);
    height: 560px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    scroll-snap-align: start;
}
.aula-card-img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: transform 0.5s ease;
}
.aula-card:hover .aula-card-img {
    transform: scale(1.06);
}
.aula-card-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.75rem;
    background: linear-gradient(to top, rgba(13,13,13,0.95) 0%, rgba(13,13,13,0.55) 55%, rgba(13,13,13,0) 100%);
}
.aula-card-overlay h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    letter-spacing: 0.03em;
    color: var(--text);
    margin: 0 0 0.5rem;
}
.aula-card-overlay p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0 0 0.75rem;
    line-height: 1.5;
}
.aula-card-info {
    display: block;
    font-size: 0.8rem;
    color: var(--accent);
    padding-top: 0.65rem;
    border-top: 1px solid var(--border);
}
/* --- Planos --- */
.planos {
    padding: 5rem 0;
    background: var(--bg-section);
}
.planos-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2.5rem;
}
.planos-tab {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-family: inherit;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.6rem 1.5rem;
    border-radius: 30px;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.planos-tab:hover { border-color: var(--accent); color: var(--text); }
.planos-tab.is-active {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg-dark);
}
.planos-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    align-items: stretch;
}
.planos-grid[hidden] { display: none; }
.planos-grid.planos-grid--3 {
    grid-template-columns: repeat(3, 1fr);
    max-width: 900px;
    margin: 0 auto;
}
.planos-extras {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}
.plano-extra-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: border-color 0.2s;
}
.plano-extra-card:hover { border-color: var(--accent); }
.plano-extra-card h4 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    letter-spacing: 0.03em;
    color: var(--text);
    margin: 0;
}
.plano-extra-preco {
    color: var(--accent);
    font-weight: 700;
    font-size: 1.2rem;
    margin: 0;
}
.plano-extra-card p:not(.plano-extra-preco) {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0 0 0.5rem;
}
.plano-extra-card .btn { align-self: flex-start; }
.plano-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    position: relative;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s;
}
.plano-card:hover { border-color: var(--accent); }
.plano-destaque {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.2);
}
.badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--bg-dark);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}
.plano-card h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    letter-spacing: 0.03em;
    margin: 1rem 0 0.5rem;
    color: var(--text);
}
.plano-preco {
    margin: 0 0 0.25rem;
    color: var(--text-muted);
}
.plano-preco .valor {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
}
.plano-obs {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0 0 1rem;
}
.plano-card ul {
    margin: 0 0 1.5rem;
    flex: 1;
}
.plano-card li {
    padding: 0.35rem 0;
    color: var(--text-muted);
    padding-left: 1.25rem;
    position: relative;
}
.plano-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}
.plano-card .btn { width: 100%; text-align: center; }

/* --- FAQ --- */
.faq {
    padding: 5rem 0;
    background: var(--bg-section);
}
.faq-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 720px;
    margin: 0 auto;
}
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.2s;
}
.faq-item:hover,
.faq-item[open] {
    border-color: var(--accent);
}
.faq-item summary {
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    transition: color 0.2s;
}
.faq-item summary::-webkit-details-marker,
.faq-item summary::marker {
    display: none;
}
.faq-item summary::after {
    content: "\f078";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 0.85rem;
    color: var(--accent);
    flex-shrink: 0;
    transition: transform 0.3s ease;
}
.faq-item[open] summary::after {
    transform: rotate(180deg);
}
.faq-item summary:hover {
    color: var(--accent);
}
.faq-content {
    padding: 0 1.5rem 1.25rem;
}
.faq-content p {
    margin: 0;
    padding-top: 0.25rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* --- Localização --- */
.localizacao {
    padding: 5rem 0;
    background: var(--bg-dark);
}
.localizacao h2 { margin-bottom: 2rem; }
.localizacao-grid {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 2rem;
    align-items: start;
}
.localizacao-info p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}
.localizacao-info strong { color: var(--text); }
.localizacao-info {
    min-width: 0;
}
.localizacao-mapa {
    min-width: 0;
    width: 100%;
    max-width: 100%;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 16/10;
    min-height: 280px;
    background: var(--bg-card);
}
.localizacao-mapa iframe {
    display: block;
    width: 100%;
    max-width: 100%;
    height: 100%;
    border: none;
}

/* --- Infraestrutura --- */
.infraestrutura {
    padding: 5rem 0;
    background: var(--bg-dark);
}
.infraestrutura-grid {
    display: flex;
    gap: 1.25rem;
    overflow-x: auto;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    padding-left: var(--space);
    padding-right: var(--space);
    scrollbar-width: none;
}
.infraestrutura-grid::-webkit-scrollbar {
    display: none;
}
/* Scroll-link (classe posta pelo JS): a seção fica presa na tela e o scroll vertical move as fotos para o lado */
.infraestrutura.is-pinned {
    padding: 0;
}
.infraestrutura.is-pinned .infraestrutura-pin {
    position: sticky;
    top: var(--header-h);
    height: calc(100svh - var(--header-h));
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.infraestrutura.is-pinned .infraestrutura-grid {
    overflow-x: hidden;
}
.infraestrutura.is-pinned .infraestrutura-card {
    height: min(560px, calc(100svh - var(--header-h) - 200px));
}
.infraestrutura-card {
    position: relative;
    flex: 0 0 auto;
    width: min(340px, 78vw);
    height: 560px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}
.infraestrutura-card-img {
    position: absolute;
    inset: 0 -12%;
    background-size: cover;
    background-position: center;
    translate: var(--parallax, 0px) 0;
    transition: transform 0.5s ease;
    will-change: translate;
}
.infraestrutura-card:hover .infraestrutura-card-img {
    transform: scale(1.06);
}
.infraestrutura-card-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.75rem;
    background: linear-gradient(to top, rgba(13,13,13,0.95) 0%, rgba(13,13,13,0.55) 55%, rgba(13,13,13,0) 100%);
}
.infraestrutura-card-overlay h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    letter-spacing: 0.03em;
    color: var(--text);
    margin: 0;
}

/* --- Footer --- */
.footer {
    padding: 3.5rem 0;
    background: var(--bg-section);
    border-top: 1px solid var(--border);
}
.footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
}
.footer-top {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}
.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    letter-spacing: 0.1em;
    color: var(--accent);
}
.footer-nav {
    display: flex;
    gap: 1.5rem;
}
.footer-nav a {
    color: var(--text-muted);
    font-size: 0.95rem;
}
.footer-nav a:hover { color: var(--accent); }
.footer-contato {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}
.footer-link {
    color: var(--accent);
    font-weight: 500;
}
.footer-link:hover { text-decoration: underline; }
.footer-redes {
    display: flex;
    gap: 1rem;
    align-items: center;
}
.footer-icone {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 1.25rem;
    transition: transform 0.2s, border-color 0.2s, color 0.2s;
}
.footer-icone:hover {
    transform: scale(1.08);
    border-color: var(--accent);
    color: var(--accent);
}
.footer-copy {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0;
}

/* --- WhatsApp fixo --- */
.whatsapp-float {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #25d366;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.5);
    z-index: 999;
    transition: transform 0.2s, box-shadow 0.2s;
}
.whatsapp-float:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.6);
}

/* --- Responsivo --- */
@media (max-width: 1024px) {
    .planos-grid { grid-template-columns: repeat(2, 1fr); }
    .planos-grid.planos-grid--3 { grid-template-columns: repeat(2, 1fr); max-width: none; }
    .planos-extras { grid-template-columns: 1fr; max-width: 400px; margin: 2rem auto 0; }
    .localizacao-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 768px) {
    .nav { display: none; }
    .header .btn-cta { display: none; }
    .menu-toggle { display: block; }
    .faq-item summary { padding: 1rem 1.25rem; font-size: 0.95rem; }
    .faq-content { padding: 0 1.25rem 1rem; }
    .header.nav-open .nav {
        display: flex;
        position: absolute;
        top: var(--header-h);
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-dark);
        padding: 1rem;
        border-bottom: 1px solid var(--border);
    }
    .planos-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .planos-grid.planos-grid--3 { grid-template-columns: 1fr; max-width: 400px; }
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .about-image { order: -1; max-height: 300px; }
    .footer-top { flex-direction: column; }
}

@media (max-width: 480px) {
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; }
    .whatsapp-float { width: 52px; height: 52px; bottom: 1rem; right: 1rem; font-size: 1.5rem; }
}