/* ============================================
   BASE CSS - Laudo Técnico BR
   Estilos base compartilhados entre todas as páginas
   ============================================ */

/* Variáveis CSS */
:root {
    --primary-color: #0d6efd;
    --primary-dark: #0b5ed7;
    --secondary-color: #6c757d;
    --accent-color: #0dcaf0;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --sidebar-width: 260px;
}

/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--light-color);
    color: var(--dark-color);
    line-height: 1.6;
}

main {
    flex: 1;
}

/* Links */
a {
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    text-decoration: none;
}

/* Navbar Principal */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.navbar-brand i {
    color: var(--primary-color);
}

/* Botões */
.btn {
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), #0a58ca);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.3);
}

/* Footer */
footer {
    background: var(--dark-color);
    color: white;
    padding: 40px 0 20px;
    margin-top: auto;
}

footer a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s;
}

footer a:hover {
    color: white;
}

footer h5 {
    font-weight: 600;
    margin-bottom: 1.5rem;
}

/* Utilitários */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.shadow-hover {
    transition: box-shadow 0.3s ease;
}

.shadow-hover:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

/* Animações */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Responsividade */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
}