/* Reset Básico */
* { box-sizing: border-box; }

:root {
    /* Cores Variáveis - Modo Claro (Padrão) */
    --bg-color: #fafafa;
    --text-main: #262626;
    --text-sec: #8e8e8e;
    --card-bg: #efefef;
    --card-border: rgba(0,0,0,0.03);
    --element-bg: #ffffff;
    --element-border: #dbdbdb;
    --brand-color: #00376b;
    --brand-hover: #0095f6;
    
    /* Background Tech Claro */
    --bg-grid-1: rgba(0, 55, 107, 0.08);
    --bg-grid-2: rgba(0, 55, 107, 0.03);
    
    /* Skeleton Loading Colors */
    --skeleton-start: #e0e0e0;
    --skeleton-end: #f0f0f0;
}

/* Detetar Preferência de Modo Escuro do Sistema */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #121212;
        --text-main: #e0e0e0;
        --text-sec: #a0a0a0;
        --card-bg: #1e1e1e;
        --card-border: #333;
        --element-bg: #1e1e1e;
        --element-border: #333;
        --brand-color: #4db5ff; /* Azul mais claro para contraste em fundo escuro */
        --brand-hover: #1aa3ff;
        
        /* Background Tech Escuro */
        --bg-grid-1: rgba(77, 181, 255, 0.05);
        --bg-grid-2: rgba(255, 255, 255, 0.03);

        /* Skeleton Loading Colors Dark */
        --skeleton-start: #2c2c2c;
        --skeleton-end: #3a3a3a;
    }
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: -apple-system, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s, color 0.3s;

    /* --- FUNDO TECNOLÓGICO ADAPTÁVEL --- */
    background-image: 
        radial-gradient(circle at 50% 0%, var(--bg-grid-1) 0%, transparent 60%),
        linear-gradient(var(--bg-grid-2) 1px, transparent 1px),
        linear-gradient(90deg, var(--bg-grid-2) 1px, transparent 1px);
    
    background-size: 100% 100%, 20px 20px, 20px 20px;
    background-position: center top;
    background-attachment: fixed;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.profile-header {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    /* Animação suave na entrada do header */
    animation: fadeIn 0.8s ease-out;
}
.profile-header .logo {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--element-border);
    margin-bottom: 15px;
    padding: 2px;
    background: var(--element-bg);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}
.profile-header .logo:hover {
    transform: rotate(5deg) scale(1.05);
}

.profile-header h1 { font-size: 1.3rem; margin: 5px 0; font-weight: 700; color: var(--text-main); }
.profile-header p { color: var(--text-sec); font-size: 0.95rem; margin-bottom: 15px; line-height: 1.4; }

/* REDES SOCIAIS */
.social-links {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap; 
    gap: 12px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    border-radius: 50%; 
    background-color: var(--element-bg);
    color: var(--text-main);
    border: 1px solid var(--element-border);
    transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275); /* Efeito elástico */
    text-decoration: none;
    font-size: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.social-links a:hover {
    background-color: var(--brand-color);
    color: #fff; 
    border-color: var(--brand-color);
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

/* Grid de Imagens */
.grid-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.grid-item {
    position: relative;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    display: block;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--card-border);
    
    /* ANIMAÇÃO DE ENTRADA (Fade In + Slide Up) */
    animation: fadeInUp 0.6s ease-out forwards;
    opacity: 0; /* Começa invisível para a animação funcionar */
    
    /* Efeito Skeleton Loading no fundo enquanto imagem carrega */
    background: linear-gradient(90deg, var(--skeleton-start) 25%, var(--skeleton-end) 50%, var(--skeleton-start) 75%);
    background-size: 200% 100%;
    animation: fadeInUp 0.6s ease-out forwards, skeletonPulse 1.5s infinite;
}

.grid-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
    /* Garante que a imagem tapa o skeleton quando carregada */
    position: relative; 
    z-index: 1; 
    background-color: var(--card-bg); /* Fundo sólido atrás da imagem */
}

/* Hover Effects */
.grid-item.clickable:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    border-color: var(--brand-color);
}

.grid-item.clickable:hover img {
    transform: scale(1.03);
}

/* Overlay "Ler Notícia" */
.overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.9), rgba(0,0,0,0));
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 20px 10px 10px 10px;
    text-align: center;
    opacity: 0;
    transition: opacity 0.3s;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    height: 50%;
    z-index: 2; /* Acima da imagem */
}

.grid-item.clickable:hover .overlay {
    opacity: 1;
}

/* Não clicável */
.grid-item.not-clickable {
    cursor: default;
    filter: grayscale(20%);
}

.footer {
    text-align: center;
    margin-top: 40px;
    color: var(--text-sec);
    font-size: 0.8rem;
    animation: fadeIn 1s ease-out;
}

/* Loader */
.loader-container {
    text-align: center;
    padding: 40px 20px;
    color: var(--brand-color);
    display: none;
    width: 100%;
    clear: both;
}
.loader-container i {
    font-size: 32px;
    animation: spin 1s linear infinite;
    margin-bottom: 10px;
}
.loader-container span {
    display: block;
    font-size: 0.95rem;
    color: var(--text-sec);
    font-weight: 500;
}

/* DEFINIÇÃO DAS ANIMAÇÕES (KEYFRAMES) */

/* Roda Roda */
@keyframes spin { 
    100% { transform: rotate(360deg); } 
}

/* Aparecer Simples */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Aparecer de baixo para cima (Slide Up) */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Pulsação do Skeleton Loading */
@keyframes skeletonPulse {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ADMIN STYLES (Adaptados para Dark Mode também) */
.admin-login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: var(--bg-color);
    background-image: 
        linear-gradient(var(--bg-grid-2) 1px, transparent 1px),
        linear-gradient(90deg, var(--bg-grid-2) 1px, transparent 1px);
    background-size: 20px 20px;
}
.login-box {
    background: var(--element-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
    width: 100%;
    max-width: 400px;
    color: var(--text-main);
}
.login-box h2 { color: var(--text-main); }
.login-box input {
    width: 100%;
    padding: 12px;
    margin-bottom: 10px;
    border: 1px solid var(--element-border);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-main);
}
.login-box button {
    width: 100%;
    padding: 12px;
    background: var(--brand-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
}

.admin-container {
    max-width: 900px;
    margin: 20px auto;
    padding: 20px;
    background: var(--element-bg);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    color: var(--text-main);
}
.admin-container header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--element-border);
    padding-bottom: 10px;
}
.post-list-admin {
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.post-item-admin {
    display: flex;
    border: 1px solid var(--element-border);
    padding: 10px;
    border-radius: 6px;
    align-items: center;
}
.post-item-admin .img-wrapper {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    margin-right: 15px;
}
.post-item-admin img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
}
.post-details {
    flex-grow: 1;
}
.post-details .caption {
    font-size: 0.85rem;
    color: var(--text-sec);
    margin: 5px 0;
}
.link-form {
    display: flex;
    gap: 10px;
}
.link-form input[type="url"] {
    flex-grow: 1;
    padding: 5px;
    background: var(--bg-color);
    border: 1px solid var(--element-border);
    color: var(--text-main);
}
.btn-sync {
    background: #4caf50;
    color: white;
    border: none;
    padding: 8px 15px;
    cursor: pointer;
    border-radius: 4px;
}
.btn-logout {
    color: #ff4d4d;
    text-decoration: none;
    font-size: 0.9rem;
    margin-left: 15px;
}

/* Responsividade: Tablets e Mobile */
@media (max-width: 768px) {
    .container { 
        max-width: 100%;
        padding: 15px; 
    }
    
    .grid-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .profile-header h1 { font-size: 1.1rem; }
    .social-links { gap: 8px; }
    .social-links a { width: 40px; height: 40px; }
}