/* ==========================================================================
   Casos de uso — linguagem editorial (body.page-site)
   Filetes no lugar de caixas; rótulos mono com filete roxo; folhas e hachura.
   ========================================================================== */

html { scroll-behavior: smooth; scroll-padding-top: 96px; }

body.page-site { background: var(--bg-light); }

/* --- nav docs (chrome próprio; coerente com scrolled claro) --- */
.case-navbar .navbar__logo,
.cases-navbar .navbar__logo { display: inline-flex; align-items: center; }
.case-navbar .navbar__logo img,
.cases-navbar .navbar__logo img { width: auto; height: 34px; }

body.page-site .case-navbar.scrolled,
body.page-site .cases-navbar.scrolled {
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

/* --- hero do guia --- */
.case-hero {
    padding: 140px 0 64px;
    border-bottom: 1px solid var(--gray-200);
    background: linear-gradient(180deg, #ffffff 0%, var(--purple-50) 100%);
}

.case-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 9px;
    margin-bottom: 30px;
    color: var(--gray-500);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.case-breadcrumb a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--purple-600);
    font-weight: 500;
    text-decoration: none;
    text-transform: none;
    letter-spacing: 0;
    font-family: var(--font-sans, Inter, sans-serif);
    font-size: 0.86rem;
}

.case-breadcrumb a:hover { color: var(--purple-700); }
.case-breadcrumb__separator { color: var(--gray-300); }

.case-hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(290px, 0.55fr);
    gap: 56px;
    align-items: end;
}

/* rótulo editorial: mono + filete (igual hero__kicker / section__eyebrow) */
.case-eyebrow {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0;
    padding: 0;
    background: none;
    border-radius: 0;
    color: var(--purple-600);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.case-eyebrow::before {
    content: "";
    flex: none;
    width: 30px;
    height: 2px;
    background: var(--purple-500);
}

.case-hero h1 {
    max-width: 900px;
    margin: 13px 0 0;
    color: var(--gray-900);
    font-size: clamp(2.15rem, 5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.035em;
}

.case-hero__lead {
    max-width: 820px;
    margin: 21px 0 0;
    color: var(--gray-600);
    font-size: 1.08rem;
    line-height: 1.75;
}

.case-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

/* resumo: folha de documento com picote */
.case-summary {
    position: relative;
    padding: 28px 24px 28px 36px;
    border: 1px solid var(--gray-200);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    background: #ffffff;
    box-shadow: 0 24px 60px rgba(46, 16, 101, 0.14);
}

.case-summary::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 20px;
    background: radial-gradient(circle at 0 10px, transparent 5px, #ffffff 5.5px) 0 0 / 20px 20px repeat-y;
    pointer-events: none;
}

.case-summary__label {
    display: block;
    color: var(--purple-600);
    font-family: var(--font-mono);
    font-size: 0.66rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.case-summary strong {
    display: block;
    margin-top: 6px;
    color: var(--gray-900);
    font-size: 0.98rem;
    line-height: 1.5;
}

.case-summary p {
    margin: 7px 0 0;
    color: var(--gray-600);
    font-size: 0.88rem;
    line-height: 1.6;
}

.case-summary hr {
    margin: 20px 0;
    border: 0;
    border-top: 1px solid var(--gray-200);
}

.case-summary code { overflow-wrap: anywhere; }

/* --- layout do conteúdo --- */
.case-main { padding: 52px 0 80px; }

.case-layout {
    display: grid;
    grid-template-columns: 245px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
}

.case-toc {
    position: sticky;
    top: 100px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    padding: 4px 0 4px 18px;
    border-left: 1px solid var(--gray-200);
}

.case-toc strong {
    display: block;
    margin: 0 0 10px 13px;
    color: var(--gray-900);
    font-family: var(--font-mono);
    font-size: 0.66rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.case-toc a {
    display: block;
    padding: 8px 13px;
    border-left: 2px solid transparent;
    color: var(--gray-500);
    font-size: 0.84rem;
    line-height: 1.35;
    text-decoration: none;
    transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.case-toc a:hover,
.case-toc a.is-active {
    border-color: var(--purple-500);
    background: transparent;
    color: var(--purple-700);
}

.case-content { min-width: 0; }

.case-section {
    padding: 0 0 45px;
    margin-bottom: 45px;
    border-bottom: 1px solid var(--gray-200);
}

.case-section:last-child { border-bottom: 0; }

.case-section h2 {
    max-width: 850px;
    margin: 10px 0 17px;
    color: var(--gray-900);
    font-size: clamp(1.55rem, 3vw, 2.05rem);
    line-height: 1.22;
    letter-spacing: -0.025em;
}

.case-section h3 {
    margin: 28px 0 10px;
    color: var(--gray-900);
    font-size: 1.08rem;
}

.case-section p,
.case-section li {
    color: var(--gray-600);
    line-height: 1.72;
}

.case-section p { margin: 0 0 16px; }
.case-section ul,
.case-section ol { margin: 0; padding-left: 1.25rem; }
.case-section li + li { margin-top: 8px; }

/* responsabilidades: trilho com hairline */
.case-responsibilities {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    margin-top: 24px;
    border-top: 1px solid var(--gray-200);
}

.case-responsibility {
    padding: 22px 22px 22px 0;
    border: 0;
    border-radius: 0;
    background: transparent;
}

.case-responsibility + .case-responsibility {
    padding-left: 22px;
    border-left: 1px solid var(--gray-200);
}

.case-responsibility--recopay {
    border-color: var(--gray-200);
    background: transparent;
}

.case-responsibility h3 { margin: 0 0 12px; }

/* fluxo: trilho + número mono editorial */
.case-flow {
    display: grid;
    gap: 0;
    margin-top: 24px;
    counter-reset: flow;
    border-top: 1px solid var(--gray-200);
}

.case-flow__item {
    position: relative;
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--gray-200);
    counter-increment: flow;
}

.case-flow__item:last-child { border-bottom: 0; }

.case-flow__item:not(:last-child)::before {
    content: "";
    position: absolute;
    top: 42px;
    bottom: -1px;
    left: 14px;
    width: 1px;
    background: var(--gray-200);
}

.case-flow__number {
    position: relative;
    z-index: 1;
    display: grid;
    width: 30px;
    height: 30px;
    place-items: center;
    margin-top: 2px;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--purple-700);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.06em;
}

.case-flow__number::before {
    content: counter(flow, decimal-leading-zero);
}

.case-flow__number::after {
    content: "";
    position: absolute;
    left: -6px;
    top: 50%;
    width: 7px;
    height: 7px;
    margin-top: -3.5px;
    background: var(--purple-500);
    transform: rotate(45deg);
}

.case-flow__body h3 { margin: 3px 0 5px; }
.case-flow__body p { margin: 0; }

/* callouts: hairline, menos raio */
.case-callout {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 15px;
    padding: 18px 0 18px 4px;
    margin: 22px 0;
    border: 0;
    border-top: 1px solid var(--purple-200);
    border-bottom: 1px solid var(--purple-200);
    border-radius: 0;
    background: transparent;
}

.case-callout--guardrail {
    border-top-color: #b7e4d0;
    border-bottom-color: #b7e4d0;
    background: transparent;
}

.case-callout--warning {
    border-top-color: #f2d1a5;
    border-bottom-color: #f2d1a5;
    background: transparent;
}

.case-callout__icon {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: 0;
    background: transparent;
    color: var(--purple-600);
    font-family: var(--font-mono);
}

.case-callout--guardrail .case-callout__icon { color: #087a55; }
.case-callout--warning .case-callout__icon { color: #b45f06; }
.case-callout strong { color: var(--gray-900); }
.case-callout p { margin: 4px 0 0; font-size: 0.92rem; }

.case-endpoint {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 24px 0 12px;
    font-family: var(--font-mono);
    font-size: 0.84rem;
    overflow-wrap: anywhere;
}

.case-method {
    flex: 0 0 auto;
    padding: 4px 8px;
    border: 1px solid #087a55;
    border-radius: 0;
    background: transparent;
    color: #087a55;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.case-method--post {
    border-color: var(--purple-400);
    background: transparent;
    color: var(--purple-700);
}

/* bloco de código: barra mono RecoPay | snippet */
.case-code {
    overflow: hidden;
    margin: 14px 0 23px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    background: #0f0722;
    box-shadow: 0 24px 60px rgba(8, 4, 20, 0.45);
}

.case-code__bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 48px;
    padding: 9px 13px 9px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
    color: #aaa2ba;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.06em;
}

.case-code__bar > span::before {
    content: "RecoPay  |  ";
    color: var(--purple-300);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-size: 0.66rem;
}

.case-copy {
    padding: 6px 10px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 0;
    background: transparent;
    color: #fff;
    font: inherit;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-size: 0.66rem;
    cursor: pointer;
}

.case-copy:hover { background: rgba(255, 255, 255, 0.08); }

.case-code pre {
    overflow-x: auto;
    padding: 22px;
    margin: 0;
    color: #e8e4f2;
    font: 0.8rem/1.68 var(--font-mono);
    white-space: pre;
    tab-size: 2;
}

.case-code code { font-family: inherit; }

.case-table-wrap {
    overflow-x: auto;
    margin: 20px 0;
    border: 1px solid var(--gray-200);
    border-radius: 0;
}

.case-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-white);
}

.case-table th,
.case-table td {
    padding: 13px 15px;
    border-bottom: 1px solid var(--gray-200);
    text-align: left;
    vertical-align: top;
    color: var(--gray-600);
    font-size: 0.86rem;
    line-height: 1.5;
}

.case-table th {
    background: transparent;
    color: var(--gray-800);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.case-table tr:last-child td { border-bottom: 0; }

.case-checklist {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    padding: 0 !important;
    list-style: none;
    border-top: 1px solid var(--gray-200);
}

.case-checklist li {
    position: relative;
    padding: 14px 15px 14px 36px;
    border: 0;
    border-bottom: 1px solid var(--gray-200);
    border-radius: 0;
    background: transparent;
}

.case-checklist li:nth-child(odd) {
    padding-right: 22px;
    border-right: 1px solid var(--gray-200);
}

.case-checklist li:nth-child(even) { padding-left: 36px; }

.case-checklist li::before {
    content: "\2713";
    position: absolute;
    top: 14px;
    left: 12px;
    color: #087a55;
    font-family: var(--font-mono);
    font-weight: 600;
}

/* CTA: tinta roxa + hachura (como cta-final) */
.case-cta {
    position: relative;
    overflow: hidden;
    padding: 36px;
    border-radius: 0;
    background-color: #170c30;
    background-image:
        repeating-linear-gradient(118deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 10px),
        linear-gradient(140deg, #26134c 0%, #1a1036 52%, #170c30 100%);
    color: #fff;
}

.case-cta .case-eyebrow {
    color: var(--purple-200);
}

.case-cta .case-eyebrow::before { background: var(--purple-400); }

.case-cta h2 {
    margin: 9px 0 12px;
    color: #fff;
    font-size: clamp(1.55rem, 3vw, 2rem);
    letter-spacing: -0.03em;
}

.case-cta p {
    max-width: 760px;
    margin: 0;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.7;
}

.case-cta__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.btn--white { background: #fff; color: #191526; }
.btn--outline-light { border: 1px solid rgba(255, 255, 255, 0.45); color: #fff; }

/* ==========================================================================
   Catálogo (casos-de-uso/index.html)
   ========================================================================== */

.cases-main { padding: var(--space-3xl) 0 var(--space-4xl); }

.cases-section__header {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) auto;
    gap: var(--space-lg);
    align-items: end;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--gray-200);
}

.cases-section__header h2 {
    margin: 0 0 6px;
    color: var(--gray-900);
    font-size: clamp(1.5rem, 2.4vw, 1.95rem);
    font-weight: 800;
    letter-spacing: -0.025em;
}

.cases-section__header p,
.cases-section__count {
    margin: 0;
    color: var(--gray-500);
    font-size: 0.9rem;
}

.cases-section__count {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border-top: 1px solid var(--gray-200);
}

.case-card {
    display: flex;
    min-height: 300px;
    flex-direction: column;
    padding: var(--space-xl);
    border: 0;
    border-right: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    text-decoration: none;
    transition: none;
}

.case-card:nth-child(3n) { border-right: 0; }

.case-card:hover {
    transform: none;
    border-color: var(--gray-200);
    box-shadow: none;
    background: var(--purple-50);
}

.case-card__top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-md);
}

.case-card__icon {
    display: grid;
    width: auto;
    height: auto;
    flex: 0 0 auto;
    place-items: start;
    border-radius: 0;
    background: transparent;
    color: var(--purple-500);
}

.case-card__status {
    padding: 0;
    border-radius: 0;
    background: transparent;
    color: var(--purple-600);
    font-family: var(--font-mono);
    font-size: 0.66rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.case-card h3 {
    margin: var(--space-lg) 0 8px;
    color: var(--gray-900);
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.case-card__description {
    margin: 0;
    color: var(--gray-600);
    font-size: 0.92rem;
    line-height: 1.65;
}

.case-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: var(--space-lg) 0;
}

.case-card__tag {
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--gray-500);
    font-family: var(--font-mono);
    font-size: 0.66rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.case-card__tag + .case-card__tag::before {
    content: "·";
    margin-right: 8px;
    color: var(--gray-300);
}

.case-card__link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: fit-content;
    margin-top: auto;
    color: var(--purple-600);
    font-size: 0.92rem;
    font-weight: 700;
    text-decoration: none;
}

.case-card__link:hover { color: var(--purple-700); }

.cases-guidance {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: var(--space-lg);
    align-items: center;
    padding: var(--space-xl) 0;
    margin-top: var(--space-3xl);
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
    border-radius: 0;
    background: transparent;
}

.cases-guidance__icon {
    display: grid;
    width: auto;
    height: auto;
    place-items: start;
    border-radius: 0;
    background: transparent;
    color: var(--purple-500);
}

.cases-guidance strong {
    display: block;
    margin-bottom: 4px;
    color: var(--gray-900);
}

.cases-guidance p {
    margin: 0;
    color: var(--gray-600);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* --- responsivo --- */
@media (max-width: 980px) {
    .case-hero__grid,
    .case-layout { grid-template-columns: 1fr; }

    .case-toc {
        position: static;
        max-height: none;
        overflow-y: visible;
        padding: 16px 0;
        border: 0;
        border-top: 1px solid var(--gray-200);
        border-bottom: 1px solid var(--gray-200);
        border-radius: 0;
        background: transparent;
    }

    .case-toc nav {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .cases-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .case-card:nth-child(3n) { border-right: 1px solid var(--gray-200); }
    .case-card:nth-child(2n) { border-right: 0; }
}

@media (max-width: 700px) {
    .cases-section__header {
        grid-template-columns: 1fr;
        align-items: flex-start;
    }

    .cases-grid { grid-template-columns: 1fr; }
    .case-card { border-right: 0; }
    .case-card:nth-child(2n),
    .case-card:nth-child(3n) { border-right: 0; }

    .cases-guidance { grid-template-columns: auto minmax(0, 1fr); }
    .cases-guidance .btn { grid-column: 1 / -1; width: 100%; }
}

@media (max-width: 680px) {
    .case-hero { padding: 112px 0 46px; }

    .case-toc nav,
    .case-responsibilities,
    .case-checklist { grid-template-columns: 1fr; }

    .case-responsibility + .case-responsibility {
        padding-left: 0;
        border-left: 0;
        border-top: 1px solid var(--gray-200);
        padding-top: 22px;
    }

    .case-checklist li:nth-child(odd) {
        padding-right: 15px;
        border-right: 0;
    }

    .case-checklist li:nth-child(even) { padding-left: 36px; }

    .case-flow__item { grid-template-columns: 36px minmax(0, 1fr); gap: 12px; }
    .case-flow__item:not(:last-child)::before { left: 10px; }
    .case-code pre { padding: 17px; font-size: 0.74rem; }
    .case-cta { padding: 26px 20px; }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}