/* ===================================
   RESET E VARIÁVEIS
   =================================== */

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

:root {
    /* Cores Primárias */
    --primary-600: #2563eb;
    --primary-700: #1e40af;
    --primary-500: #3b82f6;
    --primary-400: #60a5fa;
    
    /* Cores Secundárias (Cinzas) */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Cores de Estado */
    --success-500: #22c55e;
    --success-600: #16a34a;
    --error-500: #ef4444;
    --error-600: #dc2626;
    --warning-500: #f59e0b;
    --info-500: #06b6d4;
    
    /* Texto */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    
    /* Espaçamento */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transições */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
}

/* ===================================
   TIPOGRAFIA E BASE
   =================================== */

body {
    font-family: system-ui, -apple-system, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--gray-50);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 {
    font-size: 2.25rem;
    font-weight: 700;
}

h2 {
    font-size: 1.875rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-md);
}

/* ===================================
   CONTAINER E LAYOUT
   =================================== */

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* ===================================
   HEADER
   =================================== */

header {
    background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-600) 100%);
    color: white;
    padding: var(--spacing-xl) 0;
    box-shadow: var(--shadow-md);
    position: relative;
}

header .container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

header h1 {
    color: white;
    font-size: 1.75rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

@media (min-width: 768px) {
    header h1 {
        font-size: 2.25rem;
    }
}

header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    margin: 0;
}

/* Estilos para autores no header */
.header-autores {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.texto-autores {
    margin: 0;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.95);
}

.texto-autores strong {
    color: white;
    font-weight: 600;
}

.texto-autores a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.texto-autores a:hover {
    color: rgba(255, 255, 255, 0.8);
    border-bottom-color: white;
    transform: translateY(-1px);
}

/* ===================================
   MAIN CONTENT
   =================================== */

main {
    flex: 1;
    padding: var(--spacing-xl) 0;
}

/* ===================================
   SEÇÕES
   =================================== */

.section {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: box-shadow var(--transition-base);
}

.section:hover {
    box-shadow: var(--shadow-md);
}

.section-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--gray-200);
}

.section-title {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.section-description {
    color: var(--gray-700);
    font-size: 0.95rem;
}

/* ===================================
   CARDS
   =================================== */

.card {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-header {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.card-body {
    color: var(--gray-700);
}

/* ===================================
   GRID DE CARDS
   =================================== */

.cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

@media (min-width: 768px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===================================
   FORMS E INPUTS
   =================================== */

.form-group {
    margin-bottom: var(--spacing-lg);
}

label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

select,
input[type="text"],
input[type="number"],
textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-primary);
    background-color: white;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    outline: none;
}

select:hover,
input:hover,
textarea:hover {
    border-color: var(--gray-400);
}

select:focus,
input:focus,
textarea:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

select:disabled,
input:disabled,
textarea:disabled {
    background-color: var(--gray-100);
    cursor: not-allowed;
    opacity: 0.6;
}

/* Select Customizado */
select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
    background-position: right var(--spacing-md) center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: var(--spacing-xl);
    cursor: pointer;
}

/* Textarea */
textarea {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    resize: vertical;
    min-height: 150px;
    line-height: 1.5;
}

/* ===================================
   BOTÕES
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 500;
    font-family: inherit;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    min-width: 44px;
    min-height: 44px;
    outline: none;
}

.btn:focus-visible {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

/* Botão Primário */
.btn-primary {
    background-color: var(--primary-600);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--primary-700);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-primary:disabled {
    background-color: var(--gray-300);
    cursor: not-allowed;
    transform: none;
}

/* Botão Secundário */
.btn-secondary {
    background-color: white;
    color: var(--primary-600);
    border: 2px solid var(--primary-600);
}

.btn-secondary:hover {
    background-color: var(--primary-50);
    border-color: var(--primary-700);
    color: var(--primary-700);
}

/* Botão Success */
.btn-success {
    background-color: var(--success-500);
    color: white;
}

.btn-success:hover {
    background-color: var(--success-600);
}

/* Botão Danger */
.btn-danger {
    background-color: var(--error-500);
    color: white;
}

.btn-danger:hover {
    background-color: var(--error-600);
}

/* Botão Copiado (feedback visual) */
.btn-copiado {
    background-color: #22c55e !important;
    color: white !important;
    transition: all var(--transition-base);
}

/* Grupo de Botões */
.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* ===================================
   ÁREA DE CÓDIGO SQL
   =================================== */

.sql-display {
    background-color: var(--gray-900);
    color: #e2e8f0;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    overflow-x: auto;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-700);
}

.sql-display pre {
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.sql-display code {
    font-family: inherit;
    color: inherit;
}

/* Syntax Highlighting */
.sql-keyword {
    color: #c792ea;
    font-weight: 600;
}

.sql-function {
    color: #82aaff;
}

.sql-string {
    color: #c3e88d;
}

.sql-number {
    color: #f78c6c;
}

.sql-comment {
    color: #546e7a;
    font-style: italic;
}

/* ===================================
   TABELAS
   =================================== */

.table-container {
    overflow-x: auto;
    margin-top: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    font-size: 0.95rem;
}

thead {
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    position: sticky;
    top: 0;
    z-index: 10;
}

th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: white;
    border-bottom: 2px solid var(--primary-800);
    white-space: nowrap;
}

td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-700);
}

tbody tr {
    transition: background-color var(--transition-fast);
}

tbody tr:nth-child(even) {
    background-color: var(--gray-50);
}

tbody tr:hover {
    background-color: var(--primary-50);
}

tbody tr:last-child td {
    border-bottom: none;
}

/* Tabela Responsiva */
@media (max-width: 768px) {
    .table-container {
        font-size: 0.85rem;
    }
    
    th, td {
        padding: var(--spacing-sm);
    }
}

/* ===================================
   BADGES E TAGS
   =================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    white-space: nowrap;
}

.badge-primary {
    background-color: var(--primary-100);
    color: var(--primary-700);
}

.badge-success {
    background-color: #dcfce7;
    color: var(--success-600);
}

.badge-error {
    background-color: #fee2e2;
    color: var(--error-600);
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-info {
    background-color: #cffafe;
    color: #0e7490;
}

/* ===================================
   ALERTS E MENSAGENS
   =================================== */

.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.alert-success {
    background-color: #dcfce7;
    border-color: var(--success-500);
    color: #166534;
}

.alert-error {
    background-color: #fee2e2;
    border-color: var(--error-500);
    color: #991b1b;
}

.alert-warning {
    background-color: #fef3c7;
    border-color: var(--warning-500);
    color: #92400e;
}

.alert-info {
    background-color: #e0f2fe;
    border-color: var(--info-500);
    color: #075985;
}

/* ===================================
   LOADING STATES
   =================================== */

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spinner 0.8s linear infinite;
}

@keyframes spinner {
    to {
        transform: rotate(360deg);
    }
}

.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-300) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-sm);
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ===================================
   FOOTER PRINCIPAL E SEÇÃO DE AUTORES
   =================================== */

.footer-principal {
    background-color: white;
    border-top: 1px solid var(--gray-200);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: auto;
    box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.05);
}

.footer-conteudo {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

@media (min-width: 768px) {
    .footer-conteudo {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-conteudo {
        grid-template-columns: repeat(3, 1fr);
    }
}

.footer-info,
.footer-tecnologias,
.footer-links {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.footer-info h4,
.footer-tecnologias h4,
.footer-links h4 {
    color: var(--primary-700);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-info p {
    color: var(--gray-700);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.footer-tecnologias ul,
.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-tecnologias li,
.footer-links li {
    color: var(--gray-700);
    font-size: 0.9rem;
    padding: var(--spacing-xs) 0;
}

.footer-links a {
    color: var(--primary-600);
    text-decoration: none;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-links a:hover {
    color: var(--primary-700);
    text-decoration: underline;
    transform: translateX(3px);
}

/* Seção de Autores */
.footer-autores {
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--gray-50) 100%);
    border: 2px solid var(--primary-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.footer-autores h4 {
    color: var(--primary-700);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.autores-info {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .autores-info {
        grid-template-columns: repeat(2, 1fr);
    }
}

.autor-card {
    background: white;
    border: 2px solid var(--primary-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.autor-card:hover {
    border-color: var(--primary-400);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.autor-card strong {
    display: block;
    color: var(--primary-700);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.autor-card p {
    margin: 0;
    font-size: 0.95rem;
}

.autor-card a {
    color: var(--primary-600);
    text-decoration: none;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
}

.autor-card a:hover {
    color: var(--primary-700);
    text-decoration: underline;
    transform: scale(1.05);
}

/* Copyright */
.footer-copyright {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--gray-200);
}

.footer-copyright p {
    color: var(--gray-700);
    font-size: 0.9rem;
    margin: var(--spacing-xs) 0;
}

.footer-copyright small {
    color: var(--gray-500);
    font-size: 0.8rem;
}

/* ===================================
   SCROLLBAR CUSTOMIZADO
   =================================== */

::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: var(--radius-md);
    border: 2px solid var(--gray-100);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* ===================================
   UTILITÁRIOS
   =================================== */

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden {
    display: none;
}

.visible {
    display: block;
}

.flex {
    display: flex;
}

.flex-column {
    flex-direction: column;
}

.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ===================================
   ANIMAÇÕES
   =================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.slide-in {
    animation: slideIn var(--transition-slow) ease-out;
}

/* ===================================
   RESPONSIVIDADE AVANÇADA
   =================================== */

@media (max-width: 640px) {
    :root {
        font-size: 14px;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    .section {
        padding: var(--spacing-md);
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .header-autores {
        text-align: center;
    }
    
    .footer-autores {
        padding: var(--spacing-lg);
    }
    
    .footer-autores h4 {
        font-size: 1.25rem;
    }
}

/* ===================================
   DARK MODE SUPPORT (Opcional)
   =================================== */

@media (prefers-color-scheme: dark) {
    /* Pode ser implementado no futuro */
}

/* ===================================
   PRINT STYLES
   =================================== */

@media print {
    header,
    footer,
    .btn,
    .no-print {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .section {
        box-shadow: none;
        border: 1px solid #ddd;
        page-break-inside: avoid;
    }
}

/* ===================================
   ESTILOS PARA ENTIDADES E ATRIBUTOS
   =================================== */

.container-entidades {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .container-entidades {
        grid-template-columns: repeat(2, 1fr);
    }
}

.entidade-card {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
}

.entidade-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.entidade-titulo {
    color: var(--primary-600);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-200);
}

.tabela-atributos {
    width: 100%;
    font-size: 0.9rem;
    background: white;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.tabela-atributos thead {
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    color: white;
}

.tabela-atributos th {
    padding: var(--spacing-sm);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tabela-atributos td {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--gray-200);
}

.attr-nome {
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'Consolas', 'Monaco', monospace;
}

.attr-tipo {
    color: var(--primary-600);
    font-family: 'Consolas', 'Monaco', monospace;
    font-weight: 500;
}

.attr-restricoes {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.attr-restricoes .badge {
    font-size: 0.75rem;
    padding: 2px 6px;
}

.attr-descricao {
    color: var(--gray-700);
    font-size: 0.85rem;
}

/* ===================================
   ESTILOS PARA DIAGRAMA MERMAID
   =================================== */

.container-diagrama {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    overflow-x: auto;
}

.mermaid-diagram {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    padding: var(--spacing-lg);
}

.mermaid-diagram .mermaid {
    max-width: 100%;
}

/* Estilos para o diagrama Mermaid renderizado */
.mermaid-diagram svg {
    max-width: 100%;
    height: auto;
}

.texto-erro {
    color: var(--error-600);
    text-align: center;
    padding: var(--spacing-xl);
    font-weight: 500;
}

/* ===================================
   ESTILOS PARA RELACIONAMENTOS
   =================================== */

.container-relacionamentos {
    margin-top: var(--spacing-lg);
}

.lista-relacionamentos {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .lista-relacionamentos {
        grid-template-columns: repeat(2, 1fr);
    }
}

.relacionamento-card {
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--gray-50) 100%);
    border: 1px solid var(--primary-200);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
}

.relacionamento-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--primary-400);
}

.rel-header {
    margin-bottom: var(--spacing-sm);
}

.rel-entidades {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-sm);
}

.entidade-badge {
    background: var(--primary-600);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
}

.rel-tipo {
    background: var(--success-500);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.85rem;
    font-family: 'Consolas', monospace;
}

.rel-descricao {
    color: var(--gray-700);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
    font-weight: 500;
}

/* ===================================
   ESTILOS ADICIONAIS PARA SEÇÕES
   =================================== */

.secao-entidades,
.secao-diagrama,
.secao-relacionamentos {
    margin-bottom: var(--spacing-xl);
}

.secao-entidades .card,
.secao-diagrama .card,
.secao-relacionamentos .card {
    animation: fadeIn 0.5s ease-out;
}

.texto-vazio {
    text-align: center;
    color: var(--text-light);
    padding: var(--spacing-xl);
    font-style: italic;
}

/* ===================================
   AJUSTES RESPONSIVOS ESPECÍFICOS
   =================================== */

@media (max-width: 768px) {
    .tabela-atributos {
        font-size: 0.8rem;
    }
    
    .tabela-atributos th,
    .tabela-atributos td {
        padding: var(--spacing-xs);
    }
    
    .entidade-titulo {
        font-size: 1.1rem;
    }
    
    .attr-restricoes {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ===================================
   MELHORIAS VISUAIS
   =================================== */

.secao-entidades h3,
.secao-diagrama h3,
.secao-relacionamentos h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.secao-entidades h3::before {
    content: '📋';
    font-size: 1.5rem;
}

.secao-diagrama h3::before {
    content: '🗺️';
    font-size: 1.5rem;
}

.secao-relacionamentos h3::before {
    content: '🔗';
    font-size: 1.5rem;
}

/* Animação suave para cards */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.entidade-card,
.relacionamento-card {
    animation: slideUp 0.4s ease-out forwards;
}

.entidade-card:nth-child(1) { animation-delay: 0.05s; }
.entidade-card:nth-child(2) { animation-delay: 0.1s; }
.entidade-card:nth-child(3) { animation-delay: 0.15s; }
.entidade-card:nth-child(4) { animation-delay: 0.2s; }
.entidade-card:nth-child(5) { animation-delay: 0.25s; }
.entidade-card:nth-child(6) { animation-delay: 0.3s; }
.entidade-card:nth-child(7) { animation-delay: 0.35s; }

.relacionamento-card:nth-child(1) { animation-delay: 0.05s; }
.relacionamento-card:nth-child(2) { animation-delay: 0.1s; }
.relacionamento-card:nth-child(3) { animation-delay: 0.15s; }
.relacionamento-card:nth-child(4) { animation-delay: 0.2s; }
.relacionamento-card:nth-child(5) { animation-delay: 0.25s; }
.relacionamento-card:nth-child(6) { animation-delay: 0.3s; }
/* ===================================
   ESTILOS PARA NOVA INTERFACE - TODOS OS CONTEXTOS
   =================================== */

/* Navegação de Contextos */
.navegacao-contextos {
    background: white;
    border-bottom: 2px solid var(--gray-200);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-links {
    display: flex;
    gap: var(--spacing-sm);
    overflow-x: auto;
    padding: var(--spacing-sm) 0;
    scrollbar-width: thin;
}

.nav-link {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--gray-100);
    color: var(--primary-600);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    transition: all var(--transition-base);
}

.nav-link:hover {
    background: var(--primary-600);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Seção de Introdução */
.secao-introducao {
    margin-bottom: var(--spacing-2xl);
}

.secao-introducao .card {
    background: linear-gradient(135deg, var(--primary-50) 0%, white 100%);
    border-left: 4px solid var(--primary-600);
}

/* Container de Contextos */
.contextos-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

/* Card de Contexto */
.contexto-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--gray-200);
    scroll-margin-top: 120px;
    animation: fadeIn 0.6s ease-out;
}

.contexto-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-300);
}

/* Header do Contexto */
.contexto-header {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 3px solid var(--primary-200);
}

.contexto-numero {
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    color: white;
    font-size: 2rem;
    font-weight: 700;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-lg);
}

.contexto-info {
    flex: 1;
}

.contexto-titulo {
    color: var(--primary-700);
    font-size: 1.875rem;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.contexto-meta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.contexto-descricao {
    color: var(--gray-700);
    font-size: 1.05rem;
    line-height: 1.7;
    margin: 0;
}

/* Padrões Aplicados */
.contexto-padroes {
    background: linear-gradient(135deg, var(--gray-50) 0%, white 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    border-left: 4px solid var(--warning-500);
}

.contexto-padroes h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.lista-padroes {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: var(--spacing-sm);
}

.lista-padroes li {
    padding: var(--spacing-sm) var(--spacing-md);
    background: white;
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary-500);
    font-size: 0.95rem;
    color: var(--gray-700);
    transition: all var(--transition-base);
}

.lista-padroes li:hover {
    background: var(--primary-50);
    border-left-color: var(--primary-600);
    transform: translateX(5px);
}

.lista-padroes li::before {
    content: '✓';
    color: var(--success-500);
    font-weight: bold;
    margin-right: var(--spacing-sm);
}

/* Seções dentro do contexto */
.contexto-entidades,
.contexto-diagrama,
.contexto-relacionamentos,
.contexto-sql {
    margin-bottom: var(--spacing-2xl);
}

.contexto-entidades h3,
.contexto-diagrama h3,
.contexto-relacionamentos h3,
.contexto-sql h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--gray-200);
}

/* Diagrama */
.diagrama-wrapper {
    background: var(--gray-50);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.diagrama-placeholder {
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mermaid-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

/* Loading States */
.loading-inicial,
.loading-diagrama {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-2xl);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary-600);
    border-radius: 50%;
    animation: spinner 0.8s linear infinite;
}

.loading-inicial p,
.loading-diagrama p {
    color: var(--gray-700);
    font-size: 1rem;
    font-weight: 500;
    margin: 0;
}

/* SQL Section */
.sql-display-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--gray-200);
}

.sql-display-header h3 {
    margin: 0;
    padding: 0;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.sql-display-header .copy-sql-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.9rem;
    min-height: auto;
    flex-shrink: 0;
}

.btn-small {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
    min-height: auto;
}

.sql-content {
    display: block !important;
}

.sql-loading {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--gray-700);
    font-weight: 500;
}

.sql-display {
    display: block !important;
    background: #1e293b !important;
    color: #f1f5f9;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    overflow-x: auto;
    max-height: 500px;
    overflow-y: auto;
    border: 2px solid var(--gray-700);
}

.sql-display pre {
    margin: 0;
    background: transparent !important;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.7;
}

.sql-display pre[class*="language-"] {
    background: transparent !important;
    margin: 0;
    padding: 0;
}

.sql-display code {
    color: #f1f5f9;
    background: transparent !important;
}

.sql-display code[class*="language-"] {
    background: transparent !important;
}

/* Mensagem Flutuante */
.mensagem-flutuante {
    min-width: 300px;
    box-shadow: var(--shadow-xl);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Erro Container */
.erro-container {
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--error-50);
    border-radius: var(--radius-lg);
    border: 2px solid var(--error-200);
}

.erro-container h2 {
    color: var(--error-600);
    margin-bottom: var(--spacing-md);
}

.erro-container p {
    color: var(--error-700);
}

/* Responsividade para Contextos */
@media (max-width: 768px) {
    .contexto-card {
        padding: var(--spacing-lg);
    }
    
    .contexto-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .contexto-numero {
        width: 60px;
        height: 60px;
        font-size: 1.75rem;
    }
    
    .contexto-titulo {
        font-size: 1.5rem;
    }
    
    .nav-links {
        gap: var(--spacing-xs);
    }
    
    .nav-link {
        font-size: 0.8rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .diagrama-wrapper {
        padding: var(--spacing-md);
    }
    
    .sql-display {
        font-size: 0.75rem;
        padding: var(--spacing-md);
    }
    
    .sql-display-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .sql-display-header .copy-sql-btn {
        width: 100%;
    }
}

@media (max-width: 640px) {
    .contexto-header {
        gap: var(--spacing-md);
    }
    
    .contexto-titulo {
        font-size: 1.25rem;
    }
    
    .contextos-container {
        gap: var(--spacing-xl);
    }
    
    .contexto-padroes,
    .contexto-entidades,
    .contexto-diagrama,
    .contexto-relacionamentos,
    .contexto-sql {
        margin-bottom: var(--spacing-lg);
    }
}

/* Scroll Suave */
html {
    scroll-behavior: smooth;
}

/* Melhorias de acessibilidade */
.nav-link:focus,
.btn:focus {
    outline: 2px solid var(--primary-600);
    outline-offset: 2px;
}

/* ===================================
   BOTÃO VOLTAR AO TOPO
   =================================== */

.btn-voltar-topo {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-voltar-topo:hover {
    background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-600) 100%);
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.btn-voltar-topo:active {
    transform: translateY(-1px);
}

.btn-voltar-topo.visivel {
    opacity: 1;
    visibility: visible;
}

.btn-voltar-topo:focus-visible {
    outline: 3px solid var(--primary-400);
    outline-offset: 3px;
}

/* Responsivo para mobile */
@media (max-width: 768px) {
    .btn-voltar-topo {
        bottom: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
        font-size: 1.3rem;
    }
}

/* Print styles para contextos */
@media print {
    .navegacao-contextos,
    .btn,
    .sql-header {
        display: none;
    }
    
    .contexto-card {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
        margin-bottom: 20px;
    }
    
    .diagrama-wrapper {
        background: white;
    }
}