:root {
    --primary-bg: #f4f7f6;
    --secondary-bg: #ffffff;
    --header-bg: #e9ecef;
    --accent-color: #4a90e2;
    --text-main: #2d3436;
    --text-muted: #636e72;
    --border-color: #dfe6e9;
    --success: #2ecc71;
    --warning: #f1c40f;
    --danger: #e74c3c;
    --shadow: 0 10px 20px rgba(0,0,0,0.05);
    --radius: 12px;
}

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

body { 
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; 
    background-color: var(--primary-bg); 
    color: var(--text-main); 
    line-height: 1.6;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

header { 
    background-color: var(--header-bg); 
    padding: 15px 0; 
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav { display: flex; justify-content: space-between; align-items: center; }

.logo-container { display: flex; align-items: center; text-decoration: none; color: var(--text-main); }
.logo-img { height: 45px; margin-right: 12px; }
.logo-text { font-size: 1.6rem; font-weight: 800; letter-spacing: 1px; }

.nav-links { display: flex; list-style: none; }
.nav-links li { margin-left: 25px; }
.nav-links a { 
    text-decoration: none; 
    color: var(--text-main); 
    font-weight: 600; 
    transition: color 0.3s;
    font-size: 0.95rem;
}
.nav-links a:hover { color: var(--accent-color); }

main { padding: 40px 0; min-height: 80vh; }

.card { 
    background: var(--secondary-bg); 
    padding: 30px; 
    border-radius: var(--radius); 
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    border: 1px solid var(--border-color);
}

h2, h3 { margin-bottom: 20px; font-weight: 700; }

/* Grid de Notícias */
.news-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); 
    gap: 30px; 
}

.news-card { 
    background: var(--secondary-bg); 
    border-radius: var(--radius); 
    overflow: hidden; 
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    border: 1px solid var(--border-color);
}

.news-card:hover { transform: translateY(-5px); }
.news-card img { width: 100%; height: 200px; object-fit: cover; }
.news-content { padding: 20px; }
.news-content h3 { font-size: 1.2rem; margin-bottom: 10px; color: var(--accent-color); }
.news-content p { font-size: 0.9rem; color: var(--text-muted); }
.news-content small { color: var(--text-muted); display: block; margin-bottom: 8px; }

/* Formulários */
form div { margin-bottom: 15px; }
label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 0.9rem; }
input, select, textarea { 
    width: 100%; 
    padding: 12px; 
    border: 1px solid var(--border-color); 
    border-radius: 8px; 
    font-size: 1rem;
    background: #fff;
}
input:focus { outline: none; border-color: var(--accent-color); }

.btn { 
    background: var(--accent-color); 
    color: #fff; 
    padding: 12px 25px; 
    border: none; 
    border-radius: 8px; 
    cursor: pointer; 
    font-weight: 700; 
    transition: opacity 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}
.btn:hover { opacity: 0.9; }
.btn-danger { background: var(--danger); }

/* Tabelas */
table { width: 100%; border-collapse: collapse; margin-top: 20px; }
th, td { padding: 15px; text-align: left; border-bottom: 1px solid var(--border-color); }
th { background: var(--primary-bg); font-size: 0.85rem; text-transform: uppercase; color: var(--text-muted); }

.badge { padding: 4px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 700; color: #fff; }
.badge-success { background: var(--success); }
.badge-warning { background: var(--warning); color: #2d3436; }

@media (max-width: 768px) {
    nav { flex-direction: column; }
    .nav-links { margin-top: 20px; flex-wrap: wrap; justify-content: center; }
    .nav-links li { margin: 5px 10px; }
}