:root {
    --arca-bg: #1B1D1F;
    --arca-surface: #252526;
    --arca-surface-light: #2D2D30;
    --arca-border: #3A3A3A;
    --arca-text-primary: #FFFFFF;
    --arca-text-secondary: #B5B5B5;
    --arca-accent: #A7D34E;
    --arca-olive: #6B8E23;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--arca-bg);
    color: var(--arca-text-primary);
    font-family: "Segoe UI", Roboto, Arial, sans-serif;
    line-height: 1.5;
    overflow-x: hidden;
}

a {
    color: var(--arca-accent);
    text-decoration: none;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(27, 29, 31, 0.92);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid var(--arca-border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand img.logo-mark {
    height: 40px;
    width: auto;
}

.brand img.logo-text {
    height: 22px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    color: var(--arca-text-secondary);
    font-size: 14px;
}

.nav-links a:hover {
    color: var(--arca-text-primary);
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--arca-accent);
    color: #14170f;
}

.btn-primary:hover {
    filter: brightness(1.08);
}

.btn-outline {
    background: transparent;
    border-color: var(--arca-border);
    color: var(--arca-text-primary);
}

.btn-outline:hover {
    background: var(--arca-surface-light);
}

/* Hero */
.hero {
    position: relative;
    padding: 90px 0 70px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url("assets/fundo02.jpg");
    background-size: cover;
    background-position: center;
    opacity: 0.18;
    z-index: 0;
}

.hero-tint {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(27,29,31,0.4) 0%, rgba(27,29,31,0.95) 90%);
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-tag {
    display: inline-block;
    color: var(--arca-accent);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.hero h1 {
    font-size: 42px;
    line-height: 1.15;
    margin: 0 0 18px;
}

.hero p.lead {
    color: var(--arca-text-secondary);
    font-size: 17px;
    margin: 0 0 28px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero-shot {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--arca-border);
    box-shadow: 0 20px 60px rgba(0,0,0,0.45);
}

.hero-shot img {
    display: block;
    width: 100%;
    height: auto;
}

/* Sections */
section {
    padding: 72px 0;
}

.section-title {
    text-align: center;
    margin: 0 auto 12px;
    font-size: 30px;
}

.section-sub {
    text-align: center;
    color: var(--arca-text-secondary);
    max-width: 640px;
    margin: 0 auto 48px;
    font-size: 15px;
}

/* Feature grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    background: var(--arca-surface);
    border: 1px solid var(--arca-border);
    border-radius: 12px;
    padding: 26px;
}

.feature-card .icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--arca-surface-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    color: var(--arca-accent);
}

.feature-card .icon svg {
    width: 20px;
    height: 20px;
}

.icon-big {
    color: var(--arca-accent);
}

.icon-big svg {
    width: 34px;
    height: 34px;
}

.feature-card h3 {
    font-size: 16px;
    margin: 0 0 8px;
}

.feature-card p {
    color: var(--arca-text-secondary);
    font-size: 14px;
    margin: 0;
}

/* Highlight banner */
.highlight {
    background: linear-gradient(135deg, rgba(167,211,78,0.14), rgba(167,211,78,0.02));
    border: 1px solid rgba(167,211,78,0.4);
    border-radius: 14px;
    padding: 36px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 24px;
    align-items: center;
}

.highlight .icon-big {
    font-size: 34px;
}

.highlight h3 {
    margin: 0 0 8px;
    font-size: 19px;
}

.highlight p {
    margin: 0;
    color: var(--arca-text-secondary);
    font-size: 15px;
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 780px;
    margin: 0 auto;
}

.pricing-card {
    margin: 0 auto;
    background: var(--arca-surface);
    border: 1px solid var(--arca-accent);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
}

.pricing-card .price {
    font-size: 46px;
    font-weight: 700;
    margin: 12px 0 4px;
}

.pricing-card .price span {
    font-size: 16px;
    color: var(--arca-text-secondary);
    font-weight: 400;
}

.pricing-card .price-note {
    color: var(--arca-text-secondary);
    font-size: 13px;
    margin-bottom: 24px;
}

.pricing-list {
    list-style: none;
    padding: 0;
    margin: 0 0 28px;
    text-align: left;
}

.pricing-list li {
    padding: 8px 0;
    color: var(--arca-text-secondary);
    font-size: 14px;
    border-bottom: 1px solid var(--arca-border);
}

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

.pricing-list li::before {
    content: "✓";
    color: var(--arca-accent);
    margin-right: 10px;
    font-weight: 700;
}

/* Footer */
footer {
    border-top: 1px solid var(--arca-border);
    padding: 32px 0;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--arca-text-secondary);
    font-size: 13px;
}

.footer-brand img {
    height: 24px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--arca-text-secondary);
    font-size: 13px;
}

.footer-links a:hover {
    color: var(--arca-text-primary);
}

/* Manifesto quote strip */
.manifesto {
    padding: 56px 0;
    text-align: center;
    border-top: 1px solid var(--arca-border);
    border-bottom: 1px solid var(--arca-border);
    background: linear-gradient(135deg, rgba(167,211,78,0.08), rgba(167,211,78,0.0));
}

.manifesto blockquote {
    margin: 0 auto;
    max-width: 780px;
    font-size: 22px;
    font-style: italic;
    color: var(--arca-text-primary);
    line-height: 1.4;
}

.manifesto cite {
    display: block;
    margin-top: 18px;
    font-style: normal;
    font-size: 13px;
    color: var(--arca-accent);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* Patrimonio digital breakdown list */
.asset-breakdown {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.asset-breakdown li {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--arca-border);
    font-size: 14px;
}

.asset-breakdown li:last-child {
    border-bottom: none;
    color: var(--arca-text-secondary);
    font-style: italic;
}

.asset-breakdown li span.value {
    color: var(--arca-accent);
    font-weight: 700;
}

/* Par de screenshots lado a lado (mostruario Pesquisa Inteligente) */
.shot-pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.shot-caption {
    text-align: center;
    color: var(--arca-text-secondary);
    font-size: 13px;
    margin: 14px 0 0;
}

@media (max-width: 900px) {
    .shot-pair {
        grid-template-columns: 1fr;
    }
}

/* Paginas legais (Termos, Privacidade, Reembolso) */
.legal-content {
    max-width: 760px;
    margin: 0 auto;
    color: var(--arca-text-secondary);
    font-size: 15px;
}

.legal-content h2 {
    color: var(--arca-text-primary);
    font-size: 20px;
    margin: 36px 0 12px;
}

.legal-content h2:first-child {
    margin-top: 0;
}

.legal-content p {
    margin: 0 0 14px;
    line-height: 1.7;
}

.legal-content ul {
    margin: 0 0 14px;
    padding-left: 22px;
}

.legal-content li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.legal-content strong {
    color: var(--arca-text-primary);
}

.legal-updated {
    color: var(--arca-text-secondary);
    font-size: 13px;
    font-style: italic;
    margin-bottom: 32px;
}

/* Pagina de Documentacao: lista de passos numerados */
.doc-list {
    max-width: 820px;
    margin: 0 auto;
}

.doc-section {
    display: grid;
    grid-template-columns: 44px 1fr;
    gap: 20px;
    background: var(--arca-surface);
    border: 1px solid var(--arca-border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
}

.doc-number {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--arca-surface-light);
    color: var(--arca-accent);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.doc-section h3 {
    margin: 0 0 10px;
    font-size: 17px;
}

.doc-section p {
    color: var(--arca-text-secondary);
    font-size: 14.5px;
    margin: 0 0 10px;
}

.doc-section p:last-child {
    margin-bottom: 0;
}

.doc-section strong {
    color: var(--arca-text-primary);
    font-weight: 600;
}

@media (max-width: 600px) {
    .doc-section {
        grid-template-columns: 1fr;
    }
}

.doc-shots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
    margin-top: 16px;
    align-items: start;
}

.doc-shots img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 10px;
    border: 1px solid var(--arca-border);
    box-shadow: 0 10px 24px rgba(0,0,0,0.35);
}

.doc-video {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--arca-border);
    box-shadow: 0 20px 60px rgba(0,0,0,0.45);
    max-width: 640px;
    margin: 0 auto;
}

.doc-video video {
    display: block;
    width: 100%;
}

.doc-steps {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
}

.doc-steps img {
    max-width: 560px;
    width: 100%;
    height: auto;
    border-radius: 10px;
    border: 1px solid var(--arca-border);
    box-shadow: 0 10px 24px rgba(0,0,0,0.35);
}

.doc-steps .arrow {
    font-size: 22px;
    line-height: 1;
    color: var(--arca-accent);
}

.doc-video-caption {
    max-width: 640px;
    margin: 14px auto 0;
    text-align: center;
    color: var(--arca-text-secondary);
    font-size: 13.5px;
    line-height: 1.6;
}

/* Trepadeira decorativa que "cresce" conforme o scroll da pagina */
.scroll-vine {
    position: fixed;
    left: 16px;
    top: 0;
    width: 50px;
    height: 100vh;
    pointer-events: none;
    z-index: 1;
}

.scroll-vine svg {
    width: 100%;
    height: 100%;
    display: block;
    overflow: visible;
}

.vine-stem {
    fill: none;
    stroke: var(--arca-olive);
    stroke-width: 2.2;
    stroke-linecap: round;
}

.vine-leaf path {
    fill: var(--arca-olive);
    opacity: 0;
    transition: opacity 0.6s ease;
}

.vine-leaf.revealed path {
    opacity: 0.85;
}

@media (max-width: 1450px) {
    .scroll-vine {
        display: none;
    }
}

/* Zebra section background */
.section-alt {
    background: var(--arca-surface);
    border-top: 1px solid var(--arca-border);
    border-bottom: 1px solid var(--arca-border);
}

/* Two-column split (problema / investimento / integração) */
.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}

.split-reverse .split-media {
    order: 2;
}

.split h2 {
    font-size: 28px;
    margin: 0 0 16px;
}

.split p.body {
    color: var(--arca-text-secondary);
    font-size: 15px;
    margin: 0 0 20px;
}

.split-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.split-list li {
    padding: 10px 0 10px 28px;
    position: relative;
    color: var(--arca-text-primary);
    font-size: 14.5px;
    border-bottom: 1px solid var(--arca-border);
}

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

.split-list li::before {
    content: "→";
    color: var(--arca-accent);
    position: absolute;
    left: 0;
    font-weight: 700;
}

.split-media {
    background: var(--arca-bg);
    border: 1px solid var(--arca-border);
    border-radius: 14px;
    padding: 32px;
    text-align: center;
}

.split-media .big-number {
    font-size: 44px;
    font-weight: 700;
    color: var(--arca-accent);
    margin: 0;
}

.split-media .big-label {
    color: var(--arca-text-secondary);
    font-size: 14px;
    margin-top: 6px;
}

/* Antes x Depois */
.compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.compare-card {
    border-radius: 14px;
    padding: 30px;
    border: 1px solid var(--arca-border);
}

.compare-card.antes {
    background: var(--arca-surface);
}

.compare-card.depois {
    background: linear-gradient(135deg, rgba(167,211,78,0.12), rgba(167,211,78,0.02));
    border-color: rgba(167,211,78,0.45);
}

.compare-card h3 {
    margin: 0 0 18px;
    font-size: 15px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--arca-text-secondary);
}

.compare-card.depois h3 {
    color: var(--arca-accent);
}

.compare-card ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.compare-card li {
    padding: 9px 0 9px 26px;
    position: relative;
    font-size: 14.5px;
    border-bottom: 1px solid var(--arca-border);
}

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

.compare-card.antes li::before {
    content: "✕";
    color: #C0645A;
    position: absolute;
    left: 0;
}

.compare-card.depois li::before {
    content: "✓";
    color: var(--arca-accent);
    position: absolute;
    left: 0;
    font-weight: 700;
}

/* FAQ */
.faq {
    max-width: 760px;
    margin: 0 auto;
}

.faq-item {
    background: var(--arca-surface);
    border: 1px solid var(--arca-border);
    border-radius: 10px;
    padding: 4px 22px;
    margin-bottom: 12px;
}

.faq-item summary {
    cursor: pointer;
    padding: 16px 0;
    font-weight: 600;
    font-size: 15px;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::before {
    content: "+";
    color: var(--arca-accent);
    margin-right: 12px;
    font-weight: 700;
}

.faq-item[open] summary::before {
    content: "–";
}

.faq-item p {
    color: var(--arca-text-secondary);
    font-size: 14px;
    margin: 0 0 18px;
}

/* Final CTA */
.cta-final {
    text-align: center;
    padding: 90px 0;
}

.cta-final h2 {
    font-size: 32px;
    max-width: 700px;
    margin: 0 auto 14px;
}

.cta-final p.lead {
    color: var(--arca-text-secondary);
    max-width: 560px;
    margin: 0 auto 32px;
}

@media (max-width: 900px) {
    .hero .container {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .highlight {
        grid-template-columns: 1fr;
    }

    .split {
        grid-template-columns: 1fr;
    }

    .split-reverse .split-media {
        order: 0;
    }

    .compare-grid {
        grid-template-columns: 1fr;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }
}

@media (max-width: 560px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 32px;
    }
}