/* ==========================================================================
   Luiz Alves de Lima e Silva, duque de Caxias
   Acervo organizado por Pedro Lorenzo Raggio Neto
   Padrao da rede: PADRAO-SITES-HISTORICOS.md
   ========================================================================== */

:root {
    --primary-color:   #17222e;   /* azul-ardosia do uniforme */
    --secondary-color: #24354a;
    --accent-color:    #7a5c18;   /* ouro escuro, calibrado para fundo claro */
    --accent-mid:      #9c7a25;
    --accent-on-dark:  #d0aa55;   /* mesma matiz, clara, para blocos escuros */

    --text-dark:  #1d2127;
    --text-mid:   #4b5158;
    --text-light: #6d737b;

    --bg-light:  #f4f1ea;
    --bg-white:  #fffdf9;
    --bg-alt:    #eae4d8;
    --bg-dark:   #17222e;
    --bg-hero:   #9a9086;   /* fundo medio do retrato de 1869 */

    --border-color: #dcd3c4;
    --shadow:    0 2px 10px rgba(23, 34, 46, 0.08);
    --shadow-lg: 0 10px 34px rgba(23, 34, 46, 0.16);

    --container: 1100px;
    --coluna: 860px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: Georgia, "Times New Roman", serif;
    color: var(--text-dark);
    background: var(--bg-white);
    line-height: 1.75;
    font-size: 1.05rem;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

a { color: var(--accent-color); }

img { max-width: 100%; height: auto; }

/* ---------- Navegacao ---------------------------------------------------- */

.navbar {
    position: sticky; top: 0; z-index: 50;
    background: rgba(23, 34, 46, 0.97);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: saturate(140%) blur(6px);
}

.navbar .container {
    max-width: none;
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; min-height: 58px;
}

.nav-brand {
    font-size: 0.95rem; letter-spacing: 0.04em;
    color: #fff; text-decoration: none; font-weight: 700;
}
.nav-brand span { color: var(--accent-on-dark); font-weight: 400; }

.nav-menu { display: flex; align-items: center; gap: 22px; list-style: none; }
.nav-menu a {
    color: rgba(255, 255, 255, 0.88); text-decoration: none;
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 0.86rem; letter-spacing: 0.02em; padding: 6px 2px;
    border-bottom: 1px solid transparent;
}
.nav-menu a:hover, .nav-menu a:focus-visible {
    color: #fff; border-bottom-color: var(--accent-on-dark);
}

.nav-toggle {
    display: none; background: none; border: 1px solid rgba(255,255,255,0.35);
    border-radius: 4px; color: #fff; padding: 7px 10px; cursor: pointer;
    font-size: 0.95rem; line-height: 1;
}

a:focus-visible, button:focus-visible {
    outline: 2px solid var(--accent-on-dark); outline-offset: 3px;
}

/* ---------- Hero --------------------------------------------------------- */

.hero {
    position: relative; overflow: hidden;
    min-height: 520px; display: flex; align-items: center;
    background-color: #121a24;
    background-image: url('img/duque-de-caxias-hero.jpg');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}
.hero::before {
    content: ""; position: absolute; inset: 0; z-index: 1;
    background: linear-gradient(90deg,
        rgba(18, 26, 36, 0.97) 0%,
        rgba(18, 26, 36, 0.95) 22%,
        rgba(18, 26, 36, 0.88) 34%,
        rgba(18, 26, 36, 0.70) 43%,
        rgba(18, 26, 36, 0.45) 50%,
        rgba(18, 26, 36, 0.28) 57%,
        rgba(18, 26, 36, 0.20) 70%,
        rgba(18, 26, 36, 0.22) 85%,
        rgba(18, 26, 36, 0.30) 100%);
}
.hero::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; z-index: 2;
    background: linear-gradient(90deg, transparent, var(--accent-on-dark), transparent);
}

.hero-inner {
    max-width: calc(var(--coluna) + 48px);
    margin: 0 auto; padding: 64px 24px 60px;
    position: relative; z-index: 3; width: 100%;
}

.hero-content { max-width: var(--coluna); }

.hero-eyebrow {
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 0.78rem; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--accent-on-dark); margin-bottom: 18px;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.1rem); line-height: 1.12;
    color: #fff; font-weight: 400; letter-spacing: -0.01em;
}

.hero-nome {
    margin-top: 10px; font-size: clamp(1.1rem, 2.4vw, 1.5rem);
    color: rgba(255, 255, 255, 0.92); font-style: italic; letter-spacing: 0.01em;
}

.hero-subtitle {
    margin-top: 18px; font-size: clamp(1rem, 1.8vw, 1.1rem);
    color: rgba(255, 255, 255, 0.86); max-width: 24em;
}

.hero-dates {
    margin-top: 20px; font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 0.86rem; letter-spacing: 0.16em; color: var(--accent-on-dark);
}

/* hero compacto das paginas de capitulo: mesma familia, sem a foto */
.hero.hero-capitulo {
    background-image: none; background-color: var(--bg-dark);
    min-height: 0; display: block;
}
.hero.hero-capitulo::before { display: none; }
.hero.hero-capitulo .hero-inner { padding: 54px 24px 46px; }
.hero.hero-capitulo h1 { font-size: clamp(1.7rem, 4vw, 2.5rem); }
.hero.hero-capitulo .hero-subtitle { font-size: 1rem; max-width: 46em; }

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- Secoes ------------------------------------------------------- */

.section { padding: 74px 0; }
.section-alt { background: var(--bg-light); }
.section-dark { background: var(--bg-dark); color: rgba(255,255,255,0.9); }

.section-header { text-align: center; margin-bottom: 42px; }
.section-header h2 {
    font-size: clamp(1.5rem, 3vw, 2.05rem); font-weight: 400;
    color: var(--primary-color); letter-spacing: -0.01em;
}
.section-dark .section-header h2 { color: #fff; }
.section-header h2::after {
    content: ""; display: block; width: 62px; height: 2px;
    background: var(--accent-color); margin: 16px auto 0;
}
.section-dark .section-header h2::after { background: var(--accent-on-dark); }
.section-header .section-label { display: none; }

.content-text { max-width: var(--coluna); margin: 0 auto; }
.content-text p { margin-bottom: 1.25rem; }
.content-text h3 {
    clear: both; position: relative;
    margin: 3.35rem 0 1.35rem; padding: 0 0 0.75rem;
    font-size: 1.52rem; font-weight: 600; letter-spacing: -0.012em;
    color: var(--primary-color); line-height: 1.28;
    border: 0;
}
.content-text h3::before {
    content: none;
}
.content-text h3::after {
    content: ""; display: block; width: 48px; height: 2px;
    background: var(--accent-color); margin-top: 0.65rem; opacity: 0.75;
}
.content-text h4 {
    clear: both; margin: 2.3rem 0 0.85rem; padding: 0;
    border: 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.15rem; font-weight: 600; line-height: 1.38;
    color: var(--primary-color); letter-spacing: 0;
}
.content-text blockquote {
    margin: 1.8rem 0; padding: 4px 0 4px 22px;
    border-left: 3px solid var(--accent-color);
    color: var(--text-mid); font-style: italic;
}
.content-text ul, .content-text ol { margin: 0 0 1.25rem 1.3rem; }
.content-text li { margin-bottom: 0.5rem; }

.author-byline {
    clear: both; margin-top: 1.5rem; font-size: 0.82rem; line-height: 1.6;
    font-style: italic; opacity: 0.85;
}
.author-byline a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }

/* ---------- Sumario dos capitulos ---------------------------------------- */

.sumario { max-width: var(--container); margin: 0 auto; }
.sumario-lista { list-style: none; display: grid; gap: 14px; }
@media (min-width: 860px) { .sumario-lista { grid-template-columns: 1fr 1fr; gap: 16px 28px; } }

.sumario-item a {
    display: block; text-decoration: none; color: inherit;
    background: var(--bg-white); border: 1px solid var(--border-color);
    border-left: 3px solid var(--accent-color);
    padding: 18px 20px; height: 100%; transition: box-shadow .18s, transform .18s;
}
.sumario-item a:hover, .sumario-item a:focus-visible {
    box-shadow: var(--shadow-lg); transform: translateY(-2px);
}
.sumario-num {
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 0.74rem; letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--accent-color);
}
.sumario-titulo { display: block; margin-top: 6px; font-size: 1.12rem; color: var(--primary-color); }
.sumario-resumo { display: block; margin-top: 8px; font-size: 0.94rem; color: var(--text-mid); line-height: 1.6; }

/* ---------- Cronologia --------------------------------------------------- */

.cronologia { max-width: var(--coluna); margin: 0 auto; list-style: none; }
.cronologia li {
    display: grid; grid-template-columns: 96px 1fr; gap: 18px;
    padding: 12px 0; border-bottom: 1px solid var(--border-color);
}
.cronologia li:last-child { border-bottom: none; }
.cronologia .ano {
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 0.86rem; letter-spacing: 0.08em; color: var(--accent-color); padding-top: 4px;
}
@media (max-width: 600px) {
    .cronologia li { grid-template-columns: 1fr; gap: 2px; }
}

/* ---------- Navegacao entre capitulos ------------------------------------ */

.cap-nav {
    max-width: var(--coluna); margin: 0 auto; padding: 34px 0 0;
    display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap;
    border-top: 1px solid var(--border-color);
}
.cap-nav a {
    text-decoration: none; color: var(--primary-color);
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif; font-size: 0.9rem;
    max-width: 46%;
}
.cap-nav a:hover { color: var(--accent-color); }
.cap-nav .rotulo {
    display: block; font-size: 0.72rem; letter-spacing: 0.16em;
    text-transform: uppercase; color: var(--text-light); margin-bottom: 4px;
}
.cap-nav .prox { text-align: right; margin-left: auto; }
@media (max-width: 600px) { .cap-nav a { max-width: 100%; } }

/* ---------- Indice do capitulo ------------------------------------------- */

.indice-cap {
    max-width: var(--coluna); margin: 0 auto 46px;
    background: var(--bg-light); border: 1px solid var(--border-color); padding: 20px 24px;
}
.indice-cap h2 {
    font-size: 0.78rem; letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--text-light); font-weight: 400; margin-bottom: 12px;
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
.indice-cap ol { margin-left: 1.1rem; }
.indice-cap li { margin-bottom: 6px; }
.indice-cap a { color: var(--primary-color); text-decoration: none; }
.indice-cap a:hover { color: var(--accent-color); text-decoration: underline; }

/* ---------- Citacoes e referencias --------------------------------------- */

sup.nota-ref { line-height: 0; font-size: 0.72rem; white-space: nowrap; }
sup.nota-ref a {
    text-decoration: none; color: var(--accent-color);
    padding: 0 2px; font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
sup.nota-ref a:hover, sup.nota-ref a:focus-visible { text-decoration: underline; }

.referencias-section { border-top: 1px solid var(--border-color); }
.referencias-bloco { max-width: var(--coluna); margin: 0 auto; }
.referencias-intro { font-size: 0.92rem; color: var(--text-mid); margin-bottom: 26px; }

.ref-grupo {
    font-size: 0.78rem; letter-spacing: 0.18em; text-transform: uppercase;
    font-weight: 400; color: var(--text-light); margin: 30px 0 14px;
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
.ref-grupo:first-of-type { margin-top: 0; }

.referencias-lista { max-width: var(--coluna); margin: 0 auto; padding-left: 0; list-style: none; }
.referencias-lista li {
    position: relative; padding: 13px 0 13px 46px; font-size: 0.95rem; line-height: 1.6;
    border-bottom: 1px solid var(--border-color); color: var(--text-mid);
    overflow-wrap: anywhere;
}
.referencias-lista .ref-num {
    position: absolute; left: 0; top: 15px;
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 0.8rem; color: var(--accent-color); letter-spacing: 0.04em;
}
.referencias-lista li:target { background: #f6e7bf; }
.referencias-lista li em { font-style: italic; }
.referencias-lista a { color: var(--accent-color); text-decoration: none; word-break: break-all; }
.referencias-lista a:hover { text-decoration: underline; }

.credit-note { max-width: var(--coluna); margin: 32px auto 0; font-size: 0.9rem; color: var(--text-mid); }

/* ---------- Imagens no corpo --------------------------------------------- */

figure.inline-photo {
    margin: 2.2rem auto; max-width: var(--coluna); overflow: hidden;
    background: var(--bg-white); border: 1px solid var(--border-color);
    border-radius: 8px; box-shadow: var(--shadow);
}
figure.inline-photo img { width: 100%; height: auto; display: block; }
figure.inline-photo figcaption {
    margin: 0; padding: 10px 13px; font-size: 0.78rem; text-align: center;
    color: var(--text-light); line-height: 1.45; background: var(--bg-light);
}
.content-text > figure.inline-photo {
    width: min(46%, 400px); float: left; margin: 0.35rem 2rem 1.25rem 0;
}
.content-text > figure.inline-photo:nth-of-type(even) {
    float: right; margin-right: 0; margin-left: 2rem;
}
.content-text > figure.inline-photo.portrait { width: min(33%, 300px); }
.content-text > figure.inline-photo.centered {
    float: none;
    width: min(46%, 400px);
    margin: 2rem auto;
}
.content-text > figure.inline-photo.centered.wide {
    width: min(64%, 560px);
}
.image-pair {
    clear: both;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
    max-width: 860px;
    margin: 2rem auto;
    align-items: stretch;
}
.content-text > .image-pair > figure.inline-photo {
    float: none;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: none;
    margin: 0;
}
.content-text > .image-pair > figure.inline-photo figcaption {
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
    width: 100%;
}
figure.inline-photo[data-lightbox] { cursor: zoom-in; }
figure.inline-photo[data-lightbox] img { transition: opacity 0.18s ease; }
figure.inline-photo[data-lightbox]:hover img { opacity: 0.92; }
figure.inline-photo[data-lightbox]:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 4px;
}
.cap-nav, .referencias-section { clear: both; }
@media (max-width: 700px) {
    .content-text > figure.inline-photo,
    .content-text > figure.inline-photo:nth-of-type(even),
    .content-text > figure.inline-photo.portrait {
        float: none; width: 100%; max-width: 390px; margin: 1.8rem auto;
    }
    .content-text > figure.inline-photo.centered.wide {
        width: 100%; max-width: 560px;
    }
    .image-pair { grid-template-columns: 1fr; max-width: 390px; gap: 1.5rem; }
}

/* ---------- Ampliação de imagens ---------------------------------------- */

.img-modal-bg {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1100;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(18, 26, 36, 0.94);
}
.img-modal-bg.open { display: flex; }
.img-modal-content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 92vw;
    max-height: 92vh;
}
.img-modal-content img {
    display: block;
    max-width: 92vw;
    max-height: 79vh;
    object-fit: contain;
    background: var(--bg-light);
    border: 1px solid rgba(255,255,255,0.28);
    box-shadow: 0 18px 55px rgba(0,0,0,0.46);
}
.img-modal-caption {
    max-width: 760px;
    margin: 12px 0 0;
    color: rgba(255,255,255,0.9);
    font-size: 0.86rem;
    font-style: italic;
    line-height: 1.5;
    text-align: center;
}
.img-modal-close {
    position: absolute;
    top: -42px;
    right: 0;
    padding: 2px 8px;
    border: 0;
    background: none;
    color: #fff;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
}
@media (max-width: 700px) {
    .img-modal-bg { padding: 18px; }
    .img-modal-close { top: -38px; }
}

/* ---------- Rodape ------------------------------------------------------- */

.footer { background: var(--bg-dark); color: rgba(255,255,255,0.78); padding: 54px 0 40px; }
.footer a { color: rgba(255,255,255,0.9); }
.footer-collection { text-align: center; padding-bottom: 26px; border-bottom: 1px solid rgba(255,255,255,0.14); }
.footer-collection-label {
    font-size: 0.9rem; color: rgba(255,255,255,0.7); margin-bottom: 16px;
}
.footer-collection-label a { color: var(--accent-on-dark); }
.footer-links {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 26px;
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif; font-size: 0.86rem;
}
.footer-links a { text-decoration: none; color: rgba(255,255,255,0.86); }
.footer-links a:hover { color: var(--accent-on-dark); text-decoration: underline; }
.footer-links-break { flex: 0 0 100%; width: 100%; height: 0; }
@media (max-width: 700px) { .footer-links-break { display: none; } }

.footer-copyright { text-align: center; padding-top: 24px; }
.footer-text { font-size: 0.84rem; color: rgba(255,255,255,0.62); margin-bottom: 8px; line-height: 1.6; }
.footer-text strong { color: rgba(255,255,255,0.85); font-weight: 600; }

/* ---------- Celular ------------------------------------------------------ */

@media (max-width: 860px) {
    .nav-toggle { display: block; }
    .nav-menu {
        display: none; position: absolute; left: 0; right: 0; top: 100%;
        flex-direction: column; align-items: flex-start; gap: 0;
        background: rgba(23, 34, 46, 0.99); padding: 8px 24px 16px;
        border-bottom: 1px solid rgba(255,255,255,0.12);
    }
    .nav-menu.aberto { display: flex; }
    .nav-menu li { width: 100%; }
    .nav-menu a { display: block; width: 100%; padding: 11px 0; font-size: 0.95rem; }

    .hero {
        min-height: 560px; align-items: flex-end;
        background-image: url('img/duque-de-caxias-retrato-1869.jpg');
        background-position: center center;
    }
    .hero::before {
        background: linear-gradient(180deg,
            rgba(18, 26, 36, 0.42) 0%,
            rgba(18, 26, 36, 0.58) 38%,
            rgba(18, 26, 36, 0.94) 62%,
            rgba(18, 26, 36, 0.98) 100%);
    }
    .hero-inner { padding: 200px 24px 44px; }
    .hero h1 { font-size: clamp(1.8rem, 8vw, 2.3rem); }

    .hero.hero-capitulo { min-height: 0; }
    .hero.hero-capitulo .hero-inner { padding: 44px 24px 40px; }

    .section { padding: 52px 0; }
    body { font-size: 1.02rem; }
}