/* ============================================================
   Visita de Estudo 2026 – EPRIN
   CSS Principal — layout moderno, clean, institucional
   ============================================================ */

/* --- Reset & Base ------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    /* Paleta baseada no logótipo EPRIN (azul institucional) */
    --azul:        #1a3a6b;
    --azul-medio:  #2555a0;
    --azul-claro:  #4a7fd4;
    --azul-pale:   #e8eff9;
    --ouro:        #c8a94a;
    --cinza-esc:   #1e2022;
    --cinza:       #4a5568;
    --cinza-md:    #718096;
    --cinza-cla:   #a0aec0;
    --cinza-pale:  #f7f8fa;
    --branco:      #ffffff;
    --linha:       #e2e8f0;

    --fonte-serif: 'Playfair Display', Georgia, serif;
    --fonte-sans:  'Inter', system-ui, -apple-system, sans-serif;

    --radius:    8px;
    --radius-lg: 16px;
    --sombra:    0 4px 24px rgba(26,58,107,0.10);
    --sombra-md: 0 8px 40px rgba(26,58,107,0.15);
    --trans:     all 0.25s ease;

    --max-w: 1200px;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--fonte-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--cinza-esc);
    background: var(--branco);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a   { color: inherit; text-decoration: none; }

/* --- Utilitários ------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 24px;
}

.secao {
    padding: 96px 0;
}

.secao-fundo {
    background: var(--cinza-pale);
}

.secao-azul {
    background: var(--azul);
    color: var(--branco);
}

.secao-header {
    text-align: center;
    margin-bottom: 64px;
}

.secao-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--azul-medio);
    background: var(--azul-pale);
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.secao-azul .secao-tag {
    color: var(--ouro);
    background: rgba(200,169,74,0.15);
}

.secao-titulo {
    font-family: var(--fonte-serif);
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 700;
    color: var(--azul);
    line-height: 1.2;
    margin-bottom: 16px;
}

.secao-azul .secao-titulo { color: var(--branco); }

.secao-descricao {
    font-size: 1.05rem;
    color: var(--cinza);
    max-width: 620px;
    margin: 0 auto;
}

.secao-azul .secao-descricao { color: rgba(255,255,255,0.75); }

.divisor {
    width: 48px;
    height: 3px;
    background: var(--ouro);
    margin: 20px auto 0;
    border-radius: 2px;
}

/* --- Header ------------------------------------------------ */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: var(--trans);
}

.site-header.scrolled {
    border-bottom-color: var(--linha);
    box-shadow: 0 2px 20px rgba(26,58,107,0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    overflow: visible;
}

.header-logo img { height: 42px; width: auto; }

.site-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.site-nav a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--cinza);
    padding: 6px 14px;
    border-radius: var(--radius);
    transition: var(--trans);
}

.site-nav a:hover,
.site-nav a.ativo {
    color: var(--azul);
    background: var(--azul-pale);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--cinza-esc);
    border-radius: 2px;
    transition: var(--trans);
}

/* --- Hero -------------------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--azul) 0%, var(--azul-medio) 60%, var(--azul-claro) 100%);
    padding-top: 70px;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 70% 40%, rgba(74,127,212,0.3) 0%, transparent 60%),
        radial-gradient(ellipse 40% 40% at 20% 80%, rgba(200,169,74,0.15) 0%, transparent 50%);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-conteudo {
    position: relative;
    z-index: 1;
    color: var(--branco);
    max-width: 680px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ouro);
    border: 1px solid rgba(200,169,74,0.4);
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 28px;
}

.hero-badge::before {
    content: '';
    width: 6px; height: 6px;
    background: var(--ouro);
    border-radius: 50%;
}

.hero-titulo {
    font-family: var(--fonte-serif);
    font-size: clamp(2.4rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-titulo span {
    color: var(--ouro);
}

.hero-subtitulo {
    font-size: clamp(1rem, 1.8vw, 1.2rem);
    color: rgba(255,255,255,0.80);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 48px;
}

.hero-meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.75);
}

.hero-meta-icon {
    width: 36px; height: 36px;
    background: rgba(255,255,255,0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--trans);
    border: none;
    text-decoration: none;
}

.btn-primario {
    background: var(--ouro);
    color: var(--azul);
}

.btn-primario:hover {
    background: #d4b455;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(200,169,74,0.4);
}

.btn-secundario {
    background: rgba(255,255,255,0.12);
    color: var(--branco);
    border: 1px solid rgba(255,255,255,0.25);
}

.btn-secundario:hover {
    background: rgba(255,255,255,0.20);
    transform: translateY(-2px);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.5);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    animation: bounce 2s infinite;
}

.hero-scroll svg {
    width: 20px; height: 20px;
    stroke: currentColor;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50%       { transform: translateX(-50%) translateY(8px); }
}

/* --- Cards de Destaque ------------------------------------- */
.destaques-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.destaque-card {
    background: var(--branco);
    border: 1px solid var(--linha);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--trans);
    position: relative;
    overflow: hidden;
}

.destaque-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 0;
    background: var(--azul-medio);
    border-radius: 0 0 4px 4px;
    transition: height 0.3s ease;
}

.destaque-card:hover {
    border-color: var(--azul-pale);
    box-shadow: var(--sombra-md);
    transform: translateY(-4px);
}

.destaque-card:hover::before { height: 100%; }

.destaque-icone {
    font-size: 2.4rem;
    margin-bottom: 18px;
}

.destaque-titulo {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--azul);
    margin-bottom: 10px;
}

.destaque-texto {
    font-size: 0.9rem;
    color: var(--cinza-md);
    line-height: 1.65;
}

/* --- Enquadramento ----------------------------------------- */
.enquadramento-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.enquadramento-texto p {
    color: var(--cinza);
    margin-bottom: 18px;
    font-size: 0.97rem;
    line-height: 1.8;
}

.enquadramento-objetivos {
    background: var(--azul-pale);
    border-radius: var(--radius-lg);
    padding: 36px;
}

.enquadramento-objetivos h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--azul);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.obj-lista {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.obj-lista li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 0.92rem;
    color: var(--cinza);
}

.obj-lista li::before {
    content: '✓';
    color: var(--azul-medio);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 1px;
}

/* --- Itinerário -------------------------------------------- */
.itinerario-dias {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.dia-bloco {
    background: var(--branco);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--sombra);
}

.dia-header {
    background: var(--azul);
    color: var(--branco);
    padding: 20px 28px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.dia-numero {
    font-family: var(--fonte-serif);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--ouro);
    line-height: 1;
}

.dia-info strong {
    display: block;
    font-size: 1rem;
    font-weight: 600;
}

.dia-info span {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.65);
}

.dia-eventos {
    padding: 8px 0;
}

.evento {
    display: flex;
    gap: 0;
    padding: 0 0 0 28px;
    position: relative;
}

.evento:not(:last-child) .evento-linha {
    position: absolute;
    left: 48px;
    top: 40px;
    bottom: 0;
    width: 1px;
    background: var(--linha);
}

.evento-hora {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--azul-medio);
    min-width: 52px;
    padding: 14px 0;
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
}

.evento-dot {
    width: 10px; height: 10px;
    background: var(--azul-pale);
    border: 2px solid var(--azul-claro);
    border-radius: 50%;
    flex-shrink: 0;
    margin: 19px 16px 0;
    position: relative;
    z-index: 1;
}

.evento-descricao {
    font-size: 0.875rem;
    color: var(--cinza);
    padding: 14px 28px 14px 0;
    line-height: 1.55;
}

.evento.destaque .evento-dot {
    background: var(--ouro);
    border-color: var(--ouro);
    width: 12px; height: 12px;
    margin: 18px 15px 0;
}

.evento.destaque .evento-descricao {
    color: var(--cinza-esc);
    font-weight: 500;
}

/* --- Galeria ----------------------------------------------- */
.galeria-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.galeria-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    background: var(--cinza-pale);
}

.galeria-item img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.galeria-item:hover img {
    transform: scale(1.05);
}

.galeria-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(26,58,107,0.8) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: flex-end;
    padding: 16px;
}

.galeria-item:hover .galeria-overlay {
    opacity: 1;
}

.galeria-legenda {
    color: var(--branco);
    font-size: 0.85rem;
    line-height: 1.4;
}

.galeria-vazia {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--cinza-cla);
}

.galeria-vazia p { font-size: 1rem; }

/* --- Crew -------------------------------------------------- */
.crew-intro {
    text-align: center;
    margin-bottom: 64px;
}

.crew-professor {
    display: flex;
    justify-content: center;
    margin-bottom: 64px;
}

.crew-card-prof {
    text-align: center;
    max-width: 200px;
}

.crew-foto-wrap {
    position: relative;
    display: inline-block;
}

.crew-foto {
    width: 160px; height: 160px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--ouro);
    box-shadow: 0 8px 32px rgba(26,58,107,0.15);
}

.crew-foto-placeholder {
    width: 160px; height: 160px;
    border-radius: 50%;
    background: var(--azul-pale);
    border: 4px solid var(--linha);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--azul-claro);
}

.crew-badge-prof {
    position: absolute;
    bottom: 4px; right: 4px;
    background: var(--azul);
    color: var(--branco);
    font-size: 10px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.crew-nome {
    font-size: 1rem;
    font-weight: 600;
    color: var(--azul);
    margin-top: 16px;
    margin-bottom: 4px;
}

.crew-role {
    font-size: 0.82rem;
    color: var(--cinza-md);
}

.crew-alunos-titulo {
    text-align: center;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--cinza-cla);
    margin-bottom: 32px;
}

.crew-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 28px 20px;
    justify-items: center;
}

.crew-card-aluno {
    text-align: center;
    max-width: 140px;
}

.crew-card-aluno .crew-foto,
.crew-card-aluno .crew-foto-placeholder {
    width: 110px; height: 110px;
    border: 3px solid var(--linha);
    font-size: 2.2rem;
}

.crew-card-aluno .crew-nome {
    font-size: 0.875rem;
    margin-top: 12px;
    margin-bottom: 2px;
}

/* --- Lightbox ---------------------------------------------- */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.92);
    z-index: 9000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 9001;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.lightbox.aberto,
.lightbox.aberto + .lightbox-overlay,
.lightbox-overlay.aberto {
    opacity: 1;
    pointer-events: all;
}

.lightbox-figure {
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.lightbox-figure img {
    max-width: 88vw;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius);
    box-shadow: 0 20px 80px rgba(0,0,0,0.5);
}

.lightbox-figure figcaption {
    color: rgba(255,255,255,0.75);
    font-size: 0.875rem;
    text-align: center;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: fixed;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    color: var(--branco);
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.lightbox-close {
    top: 20px; right: 20px;
    width: 44px; height: 44px;
    font-size: 1.4rem;
}

.lightbox-prev,
.lightbox-next {
    top: 50%; transform: translateY(-50%);
    width: 48px; height: 48px;
    font-size: 1.8rem;
    line-height: 1;
}

.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255,255,255,0.22);
}

/* --- Admin ------------------------------------------------- */
.admin-body {
    background: #f0f2f5;
    min-height: 100vh;
    font-family: var(--fonte-sans);
}

.admin-header {
    background: var(--azul);
    color: var(--branco);
    padding: 0 32px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.admin-header .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 0.95rem;
}

.admin-header .logo img { height: 32px; }

.admin-header a {
    color: rgba(255,255,255,0.75);
    font-size: 0.85rem;
    transition: color 0.2s;
}
.admin-header a:hover { color: var(--branco); }

.admin-main {
    max-width: 960px;
    margin: 40px auto;
    padding: 0 24px;
}

.admin-card {
    background: var(--branco);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    margin-bottom: 28px;
}

.admin-card h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--azul);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--linha);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--cinza);
    margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="file"],
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--linha);
    border-radius: var(--radius);
    font-family: var(--fonte-sans);
    font-size: 0.9rem;
    color: var(--cinza-esc);
    transition: border-color 0.2s;
    background: var(--branco);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--azul-claro);
    box-shadow: 0 0 0 3px rgba(74,127,212,0.12);
}

.btn-admin {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--trans);
    text-decoration: none;
}

.btn-admin-primario {
    background: var(--azul-medio);
    color: var(--branco);
}
.btn-admin-primario:hover { background: var(--azul); }

.btn-admin-perigo {
    background: #fee2e2;
    color: #dc2626;
}
.btn-admin-perigo:hover { background: #fecaca; }

.alerta {
    padding: 12px 18px;
    border-radius: var(--radius);
    font-size: 0.875rem;
    margin-bottom: 20px;
}

.alerta-sucesso { background: #dcfce7; color: #16a34a; border: 1px solid #bbf7d0; }
.alerta-erro    { background: #fee2e2; color: #dc2626; border: 1px solid #fecaca; }
.alerta-aviso   { background: #fef9c3; color: #a16207; border: 1px solid #fef08a; }

.tabela-admin {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.tabela-admin th {
    text-align: left;
    padding: 10px 14px;
    background: var(--cinza-pale);
    color: var(--cinza);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 1px solid var(--linha);
}

.tabela-admin td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--linha);
    color: var(--cinza-esc);
    vertical-align: middle;
}

.tabela-admin tr:last-child td { border-bottom: none; }
.tabela-admin tr:hover td { background: var(--cinza-pale); }

.tabela-admin img {
    width: 60px; height: 45px;
    object-fit: cover;
    border-radius: 4px;
}

.badge-ativo   { background: #dcfce7; color: #16a34a; padding: 2px 10px; border-radius: 20px; font-size: 0.78rem; font-weight: 600; }
.badge-inativo { background: #f3f4f6; color: #9ca3af; padding: 2px 10px; border-radius: 20px; font-size: 0.78rem; font-weight: 600; }

/* --- Login ------------------------------------------------- */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--azul) 0%, var(--azul-medio) 100%);
    padding: 24px;
}

.login-card {
    background: var(--branco);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--sombra-md);
    text-align: center;
}

.login-card img { height: 48px; margin: 0 auto 28px; }

.login-card h1 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--azul);
    margin-bottom: 6px;
}

.login-card p {
    font-size: 0.875rem;
    color: var(--cinza-md);
    margin-bottom: 32px;
}

.login-card .form-group { text-align: left; }

/* --- Drop Zone --------------------------------------------- */
.drop-zone {
    border: 2px dashed var(--linha);
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--trans);
    margin-bottom: 20px;
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--azul-claro);
    background: var(--azul-pale);
}

.drop-zone p {
    color: var(--cinza-md);
    font-size: 0.9rem;
    margin-top: 8px;
}

.drop-zone .drop-icon { font-size: 2.5rem; }

/* --- Agradecimentos / Patrocinadores ----------------------- */
.agradecimentos-texto {
    max-width: 820px;
    margin: 0 auto 56px;
    text-align: center;
}

.agradecimentos-texto p {
    color: var(--cinza);
    font-size: 0.97rem;
    line-height: 1.8;
    margin-bottom: 18px;
}

.agradecimentos-obrigado {
    font-family: var(--fonte-serif);
    font-size: 1.5rem !important;
    font-weight: 700;
    color: var(--azul) !important;
    margin-top: 32px !important;
}

.patrocinadores-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: stretch;
}

.patrocinador-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    background: var(--branco);
    border: 1px solid var(--linha);
    border-radius: var(--radius-lg);
    padding: 28px 20px 22px;
    text-decoration: none;
    transition: var(--trans);
}

.patrocinador-card:hover {
    border-color: var(--azul-pale);
    box-shadow: var(--sombra-md);
    transform: translateY(-4px);
}

.patrocinador-card img {
    max-height: 72px;
    max-width: 100%;
    width: auto;
    object-fit: contain;
    filter: grayscale(30%);
    transition: filter 0.3s ease;
}

.patrocinador-card:hover img {
    filter: grayscale(0%);
}

.patrocinador-placeholder {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cinza-cla);
    font-size: 0.8rem;
    text-align: center;
    font-style: italic;
}

.patrocinador-nome {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--cinza-md);
    text-align: center;
    line-height: 1.4;
}

/* --- Responsivo -------------------------------------------- */
@media (max-width: 900px) {
    .enquadramento-grid { grid-template-columns: 1fr; gap: 40px; }
    .itinerario-dias    { grid-template-columns: 1fr; }
}

/* Menu hamburger a partir de 1024px (6 itens no nav) */
@media (max-width: 1024px) {
    .site-nav {
        display: none;
        position: fixed;
        top: 70px; left: 0; right: 0;
        background: var(--branco);
        border-bottom: 1px solid var(--linha);
        flex-direction: column;
        align-items: stretch;
        padding: 12px 16px;
        gap: 4px;
        box-shadow: 0 8px 24px rgba(0,0,0,0.1);
        z-index: 999;
    }

    .site-nav.aberto {
        display: flex;
    }

    .site-nav a { padding: 10px 14px; }

    .nav-toggle { display: flex; }
}

@media (max-width: 768px) {
    .secao { padding: 64px 0; }
    .patrocinadores-grid { grid-template-columns: repeat(2, 1fr); }
    .destaques-grid      { grid-template-columns: repeat(2, 1fr); }
    .crew-badge-prof     { display: none !important; }
    .crew-professor {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
        justify-items: center;
    }

    .hero-meta { gap: 16px; }
    .galeria-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
    .crew-grid { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }

    .lightbox-prev { left: 8px; }
    .lightbox-next { right: 8px; }
}

@media (max-width: 480px) {
    .hero-btns { flex-direction: column; }
    .hero-btns .btn { justify-content: center; }
    .admin-card { padding: 24px 20px; }
    .login-card { padding: 36px 24px; }
}