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

/* Variáveis CSS para tema light */
:root {
    --bg-primary: #667eea;
    --bg-secondary: #764ba2;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --main-bg: white;
    --text-primary: #333;
    --text-secondary: #555;
    --text-muted: #666;
    --border-color: #e1e5e9;
    --border-focus: #667eea;
    --shadow-color: rgba(0,0,0,0.2);
    --alert-error-bg: #f8d7da;
    --alert-error-text: #721c24;
    --alert-error-border: #f5c6cb;
    --alert-success-bg: #d4edda;
    --alert-success-text: #155724;
    --alert-success-border: #c3e6cb;
    --btn-primary-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --btn-secondary-bg: #6c757d;
    --btn-info-bg: #17a2b8;
    --btn-small-bg: #6c757d;
    --result-bg: #f8f9fa;
    --result-header-bg: #e9ecef;
    --result-border: #dee2e6;
    --features-bg: #f8f9fa;
    --features-border: #667eea;
    --code-bg: #f8f9fa;
    --code-border: #e1e5e9;
    --scrollbar-track: #f1f1f1;
    --scrollbar-thumb: #c1c1c1;
    --scrollbar-thumb-hover: #a8a8a8;
    --h1-color: #333;
    --h2-color: #333;
    --h3-color: #333;
    --h4-color: #333;
    --h5-color: #333;
    --li-color: #555;
    --example-box-bg: #fff;
    --example-box-border: #dee2e6;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-gradient);
    min-height: 100vh;
    transition: background 0.3s ease, color 0.3s ease;
}

html {
    visibility: visible;
    opacity: 1;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

header h1 {
    color: var(--h1-color);
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Main content */
main {
    background: var(--main-bg);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px var(--shadow-color);
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

/* Alertas */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-error {
    background-color: var(--alert-error-bg);
    color: var(--alert-error-text);
    border: 1px solid var(--alert-error-border);
}

.alert-success {
    background-color: var(--alert-success-bg);
    color: var(--alert-success-text);
    border: 1px solid var(--alert-success-border);
}

.stats-inline {
    font-size: 0.9em;
    opacity: 0.8;
    margin-left: 10px;
}

/* Formulário */
.sql-form {
    margin-bottom: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
    transition: border-color 0.3s ease;
    background-color: var(--main-bg);
    color: var(--text-primary);
    min-height: 120px;
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.help-text {
    display: block;
    margin-top: 5px;
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
}

.form-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

/* Botões */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--btn-primary-bg);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background-color: var(--btn-secondary-bg);
    color: white;
}

.btn-secondary:hover {
    background-color: #5a6268;
    transform: translateY(-2px);
}

.btn-info {
    background-color: var(--btn-info-bg);
    color: white;
}

.btn-info:hover {
    background-color: #138496;
    transform: translateY(-2px);
}

.btn-small {
    padding: 8px 16px;
    font-size: 14px;
    margin-left: 10px;
    background-color: var(--btn-small-bg);
    color: white;
}

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

/* Seção de resultado */
.result-section {
    margin-top: 30px;
    border-top: 2px solid #e1e5e9;
    padding-top: 30px;
    animation: fadeIn 0.5s ease-out;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.result-header h2 {
    color: var(--h2-color);
    font-size: 1.8rem;
}

.result-stats {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.stat {
    background-color: var(--result-bg);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
}

/* Output SQL */
.sql-output {
    background-color: var(--code-bg);
    border: 2px solid var(--code-border);
    border-radius: 8px;
    overflow: hidden;
}

.sql-output-header {
    background-color: var(--result-header-bg);
    padding: 10px 15px;
    border-bottom: 1px solid var(--result-border);
    display: flex;
    justify-content: flex-end;
}

.sql-code {
    padding: 20px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-wrap: break-word;
    max-height: 500px;
    overflow-y: auto;
    margin: 0;
}

/* Estilos para o código com syntax highlighting */
#sql-output {
    margin: 0;
    padding: 0;
    background: transparent;
    max-height: 500px;
    overflow-y: auto;
}

#sql-output code {
    display: block;
    padding: 20px;
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
    background: transparent !important;
}

/* Ajustes para o tema do highlight.js */
.hljs {
    background: transparent !important;
    padding: 0 !important;
}

/* Background específico para o output SQL com highlight */
html.dark-theme .sql-output,
body.dark-theme .sql-output {
    background-color: #010409;
    border-color: #21262d !important;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
}

html:not(.dark-theme) .sql-output,
body:not(.dark-theme) .sql-output {
    background-color: #fafafa;
    border-color: #e1e5e9;
}

html.dark-theme .sql-output-header,
body.dark-theme .sql-output-header {
    background-color: #2D2D3A !important;
    border-bottom-color: #21262d !important;
}

html:not(.dark-theme) .sql-output-header,
body:not(.dark-theme) .sql-output-header {
    background-color: #f0f0f0;
    border-bottom-color: #e1e5e9;
}

/* Ajustes no scrollbar para tema dark */
html.dark-theme #sql-output::-webkit-scrollbar-track,
body.dark-theme #sql-output::-webkit-scrollbar-track {
    background: #1E1E2E;
}

html.dark-theme #sql-output::-webkit-scrollbar-thumb,
body.dark-theme #sql-output::-webkit-scrollbar-thumb {
    background: #21262d;
    border-radius: 4px;
}

html.dark-theme #sql-output::-webkit-scrollbar-thumb:hover,
body.dark-theme #sql-output::-webkit-scrollbar-thumb:hover {
    background: #30363d;
}

/* Botão copiar no tema dark */
html.dark-theme .sql-output-header .btn-small,
body.dark-theme .sql-output-header .btn-small {
    background-color: #161b22;
    color: #c9d1d9;
    border: 1px solid #21262d;
}

html.dark-theme .sql-output-header .btn-small:hover,
body.dark-theme .sql-output-header .btn-small:hover {
    background-color: #21262d;
    border-color: #30363d;
    transform: translateY(-1px);
}

/* Stats badges no tema dark */
html.dark-theme .stat,
body.dark-theme .stat {
    background-color: #0d1117;
    color: #8b949e;
    border: 1px solid #21262d;
}

/* Result header no tema dark */
html.dark-theme .result-section,
body.dark-theme .result-section {
    border-top-color: #21262d;
}

/* Code font melhorado */
#sql-output code {
    font-size: 14px;
    line-height: 1.8;
    letter-spacing: 0.3px;
}

/* Melhora o contraste do código no tema dark */
html.dark-theme #sql-output,
body.dark-theme #sql-output {
    background-color: #1E1E2E !important;
    padding: 2px;
}

html.dark-theme #sql-output code,
body.dark-theme #sql-output code {
    color: #c9d1d9;
    background-color: transparent;
}

/* Título "Query Final" no tema dark */
html.dark-theme .result-header h2,
body.dark-theme .result-header h2 {
    color: #c9d1d9;
}

/* Features */
h1, h2, h3, h4, h5 {
    color: var(--h1-color);
}

h2 {
    color: var(--h2-color);
}

h3 {
    color: var(--h3-color);
    margin-top: 30px;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

h4 {
    color: var(--h4-color);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

h5 {
    color: var(--h5-color);
}

li {
    color: var(--li-color);
}

.features {
    margin-top: 40px;
    padding: 25px;
    background-color: var(--features-bg);
    border-radius: 8px;
    border-left: 4px solid var(--features-border);
}

.features ul {
    list-style: none;
    padding-left: 0;
}

.features li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: var(--li-color);
}

.features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
}

.features code {
    background-color: #e9ecef;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: #d63384;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.feature-item {
    background: var(--example-box-bg);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--example-box-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.feature-item h4 {
    margin-bottom: 10px;
    color: var(--h4-color);
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Examples */
.examples {
    display: grid;
    gap: 15px;
    margin-top: 15px;
}

.example-box {
    background: var(--example-box-bg);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--example-box-border);
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    transition: background-color 0.3s ease;
}

.example-box:hover {
    background-color: var(--result-bg);
}

.example-box strong {
    min-width: 150px;
    color: var(--text-secondary);
}

.example-box code {
    background-color: #e9ecef;
    padding: 4px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: #d63384;
}

.example-box .arrow {
    color: var(--text-muted);
    font-weight: bold;
}

/* Footer */
footer {
    text-align: center;
    color: white;
    opacity: 0.8;
    font-size: 14px;
}

/* Scrollbar personalizada */
.sql-code::-webkit-scrollbar,
#sql-output::-webkit-scrollbar {
    width: 8px;
}

.sql-code::-webkit-scrollbar-track,
#sql-output::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
    border-radius: 4px;
}

.sql-code::-webkit-scrollbar-thumb,
#sql-output::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}

.sql-code::-webkit-scrollbar-thumb:hover,
#sql-output::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

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

/* Botão de alternância de tema */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: var(--main-bg);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    padding: 10px 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px var(--shadow-color);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.theme-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-color);
}

.theme-toggle .icon {
    font-size: 18px;
    transition: transform 0.3s ease;
}

.theme-toggle:hover .icon {
    transform: rotate(180deg);
}

/* Tema Dark */
html.dark-theme,
body.dark-theme {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    --main-bg: #2d2d3a;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --text-muted: #888888;
    --border-color: #404040;
    --border-focus: #4a9eff;
    --shadow-color: rgba(0,0,0,0.4);
    --alert-error-bg: #4a1a1a;
    --alert-error-text: #ff6b6b;
    --alert-error-border: #6b2c2c;
    --alert-success-bg: #1a4a1a;
    --alert-success-text: #51cf66;
    --alert-success-border: #2c6b2c;
    --btn-primary-bg: linear-gradient(135deg, #4a9eff 0%, #6b73ff 100%);
    --btn-secondary-bg: #4a5568;
    --btn-info-bg: #0d6efd;
    --btn-small-bg: #4a5568;
    --result-bg: #1e1e2e;
    --result-header-bg: #2d2d3a;
    --result-border: #404040;
    --features-bg: #1e1e2e;
    --features-border: #4a9eff;
    --code-bg: #1e1e2e;
    --code-border: #404040;
    --scrollbar-track: #2d2d3a;
    --scrollbar-thumb: #666666;
    --scrollbar-thumb-hover: #888888;
    --h1-color: #f0f0f0;
    --h2-color: #f0f0f0;
    --h3-color: #f0f0f0;
    --h4-color: #f0f0f0;
    --h5-color: #f0f0f0;
    --li-color: #f0f0f0;
    --example-box-bg: #1e1e2e;
    --example-box-border: #404040;
}

/* Inputs e textareas no tema dark */
html.dark-theme input,
html.dark-theme select,
html.dark-theme textarea,
body.dark-theme input,
body.dark-theme select,
body.dark-theme textarea {
    background-color: #2D2D3A !important;
    color: #e0e0e0 !important;
    border-color: #404040 !important;
}

html.dark-theme input:focus,
html.dark-theme select:focus,
html.dark-theme textarea:focus,
body.dark-theme input:focus,
body.dark-theme select:focus,
body.dark-theme textarea:focus {
    background-color: #2D2D3A !important;
    color: #e0e0e0 !important;
    border-color: #4a9eff !important;
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1) !important;
}

html.dark-theme input::placeholder,
html.dark-theme select::placeholder,
html.dark-theme textarea::placeholder,
body.dark-theme input::placeholder,
body.dark-theme select::placeholder,
body.dark-theme textarea::placeholder {
    color: #888888 !important;
}

/* Code no tema dark */
html.dark-theme .features code,
body.dark-theme .features code,
html.dark-theme .example-box code,
body.dark-theme .example-box code {
    background-color: #1e1e2e;
    color: #ff79c6;
}

/* Responsividade */
@media (max-width: 1024px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    main {
        padding: 20px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .result-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .result-stats {
        justify-content: flex-start;
    }
    
    .theme-toggle {
        top: 10px;
        right: 10px;
        padding: 8px 12px;
        font-size: 12px;
    }
    
    .theme-toggle .text {
        display: none;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .sql-code,
    #sql-output code {
        font-size: 12px;
        padding: 15px;
    }
    
    .features {
        padding: 20px;
    }
    
    .example-box {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .example-box strong {
        min-width: auto;
    }
    
    .tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
        border-radius: 8px !important;
        margin-bottom: 5px;
    }
}

/* Sistema de abas */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0;
}

.tab-btn {
    padding: 12px 24px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    position: relative;
    bottom: -2px;
}

.tab-btn:hover {
    color: var(--border-focus);
    background-color: rgba(102, 126, 234, 0.05);
}

.tab-btn.active {
    color: var(--border-focus);
    border-bottom-color: var(--border-focus);
}

.tab-content {
    animation: fadeIn 0.3s ease-out;
}

/* Dark theme para abas */
html.dark-theme .tab-btn,
body.dark-theme .tab-btn {
    color: var(--text-secondary);
}

html.dark-theme .tab-btn:hover,
body.dark-theme .tab-btn:hover {
    color: var(--border-focus);
    background-color: rgba(74, 158, 255, 0.1);
}

html.dark-theme .tab-btn.active,
body.dark-theme .tab-btn.active {
    color: var(--border-focus);
    border-bottom-color: var(--border-focus);
}