/* Estilos específicos para el módulo de Java Avanzado */

/* Variables de colores para el tema avanzado */
:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --accent-color: #9b59b6;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --success-color: #27ae60;
}

/* Estilos base del módulo */
.tutorial-article {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.article-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 3px solid var(--accent-color);
    position: relative;
}

.article-title {
    font-size: 2.8rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.module-badge {
    position: absolute;
    top: 0;
    right: 0;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0 12px 0 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    font-weight: bold;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.module-tags {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1rem;
}

.tag {
    background: var(--light-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Introducción */
.intro-container {
    background: linear-gradient(135deg, #667eea15, #764ba215);
    padding: 2.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    border: 2px solid var(--primary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    border-top: 4px solid var(--primary-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card:nth-child(2) .feature-icon { color: var(--secondary-color); }
.feature-card:nth-child(3) .feature-icon { color: var(--accent-color); }
.feature-card:nth-child(4) .feature-icon { color: var(--warning-color); }
.feature-card:nth-child(5) .feature-icon { color: var(--danger-color); }

/* Genéricos */
.generics-visualizer {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.generics-simulator {
    background: var(--light-color);
    padding: 2rem;
    border-radius: 10px;
}

.simulator-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-group label {
    font-weight: bold;
    color: var(--dark-color);
}

.method-select {
    padding: 0.75rem;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
}

.method-select:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.tool-btn {
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.tool-btn:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.simulator-output {
    margin-top: 1.5rem;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    min-height: 100px;
}

.wildcards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.wildcard-card {
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-top: 3px solid var(--secondary-color);
}

.wildcard-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--dark-color);
    color: white;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-weight: bold;
    margin-bottom: 1rem;
}

/* Lambda */
.lambda-demo {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.lambda-intro {
    background: var(--light-color);
    padding: 2rem;
    border-radius: 10px;
}

.lambda-playground {
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    border: 2px solid var(--secondary-color);
}

.playground-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.playground-output {
    margin-top: 1.5rem;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px dashed var(--secondary-color);
    font-family: 'Courier New', monospace;
    min-height: 100px;
}

.lambda-code-preview {
    margin-top: 1rem;
    background: #2c3e50;
    color: white;
    padding: 1rem;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    overflow-x: auto;
}

.interfaces-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.interface-card {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.interface-card:hover {
    transform: translateY(-3px);
}

.interface-header {
    background: linear-gradient(135deg, var(--primary-color), #2980b9);
    color: white;
    padding: 1rem;
    font-family: 'Courier New', monospace;
    font-weight: bold;
}

.interface-body {
    padding: 1rem;
}

/* Streams */
.streams-workflow {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin: 2rem 0;
    position: relative;
}

.streams-workflow::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 10%;
    right: 10%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    z-index: 1;
}

.workflow-step {
    position: relative;
    z-index: 2;
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    width: 30%;
    text-align: center;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.workflow-step:nth-child(2) .step-number { background: var(--secondary-color); }
.workflow-step:nth-child(3) .step-number { background: var(--accent-color); }

.streams-interactive {
    background: linear-gradient(135deg, #3498db15, #2ecc7115);
    padding: 2rem;
    border-radius: 12px;
    margin-top: 2rem;
    border: 2px solid var(--primary-color);
}

.simulator-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 1.5rem;
}

.data-input {
    padding: 1.5rem;
    border-radius: 8px;
}

.stream-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #ddd;
    border-radius: 6px;
    margin: 0.5rem 0 1rem;
    font-size: 1rem;
}

.operations-panel {
    margin: 1.5rem 0;
}

.operations-group {
    margin-bottom: 1.5rem;
}

.operation-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.operation-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background 0.2s;
}

.operation-checkbox:hover {
    background: #f0f0f0;
}

.stream-visualization {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.visual-step {
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.data-display, .result-display {
    padding: 1rem;
    border-radius: 6px;
    margin-top: 0.5rem;
    min-height: 60px;
    font-family: 'Courier New', monospace;
}

.operations-flow {
    padding: 1rem;
    background: linear-gradient(135deg, #3498db10, #2ecc7110);
    border-radius: 6px;
    margin-top: 0.5rem;
    min-height: 60px;
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.example-card {
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-left: 4px solid var(--accent-color);
}

/* Fechas */
.dates-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.comparison-old, .comparison-new {
    padding: 1.5rem;
    border-radius: 10px;
}

.comparison-old {
    background: linear-gradient(135deg, #e74c3c10, #c0392b10);
    border: 2px solid var(--danger-color);
}

.comparison-new {
    background: linear-gradient(135deg, #2ecc7110, #27ae6010);
    border: 2px solid var(--success-color);
}

.issues, .benefits {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 6px;
}

.issues p, .benefits p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.5rem 0;
}

.dates-playground {
    padding: 2rem;
    border-radius: 12px;
    margin-top: 2rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.control-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.dates-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.result-card {
    background: var(--light-color);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
}

.result-value {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-top: 0.5rem;
    font-family: 'Courier New', monospace;
}

.formatting-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.format-example {
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* Archivos */
.files-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.file-method {
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-top: 4px solid var(--warning-color);
}

.method-stats {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 6px;
}

.method-stats p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.5rem 0;
}

.files-playground {
    padding: 2rem;
    border-radius: 12px;
    margin-top: 2rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.editor-container {
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
}

.editor-tabs {
    display: flex;
    background: var(--dark-color);
}

.editor-tab {
    flex: 1;
    padding: 1rem;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s;
}

.editor-tab.active {
    background: var(--primary-color);
}

.editor-panel {
    padding: 1.5rem;
    display: none;
}

.editor-panel.active {
    display: block;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.file-textarea {
    width: 100%;
    min-height: 200px;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    resize: vertical;
}

.editor-actions {
    padding: 1.5rem;
    border-top: 1px solid #ddd;
}

.action-group {
    margin-bottom: 1rem;
}

.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.action-btn {
    padding: 0.5rem 1rem;
    background: var(--light-color);
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
}

.action-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.file-stats {
    display: flex;
    gap: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #ddd;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
}

.stat-value {
    font-weight: bold;
    color: var(--primary-color);
}

/* Ejercicios */
.exercises-container {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    margin-top: 2rem;
}

.exercise-tabs {
    display: flex;
    background: linear-gradient(135deg, var(--dark-color), #34495e);
    overflow-x: auto;
}

.exercise-tab {
    flex: 1;
    min-width: 150px;
    padding: 1.5rem;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    text-align: center;
    border-bottom: 3px solid transparent;
}

.exercise-tab.active {
    background: rgba(255,255,255,0.1);
    border-bottom-color: var(--primary-color);
    font-weight: bold;
}

.exercise-content {
    padding: 0;
}

.exercise-panel {
    display: none;
    padding: 2.5rem;
}

.exercise-panel.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.exercise-instructions {
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    border-left: 4px solid var(--primary-color);
}

.exercise-instructions ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.exercise-instructions li {
    margin-bottom: 0.5rem;
}

.exercise-editor {
    background: #1e1e1e;
    border-radius: 8px;
    margin: 1.5rem 0;
    overflow: hidden;
}

.exercise-code {
    width: 100%;
    min-height: 300px;
    background: none;
    border: none;
    color: #d4d4d4;
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    padding: 1.5rem;
    line-height: 1.6;
    resize: vertical;
    outline: none;
}

.editor-toolbar {
    background: #2d2d2d;
    padding: 1rem;
    display: flex;
    gap: 1rem;
    align-items: center;
}

.exercise-output {
    background: #2c3e50;
    color: #00ff00;
    font-family: 'Courier New', monospace;
    padding: 1.5rem;
    border-radius: 8px;
    min-height: 150px;
    margin-top: 1.5rem;
    overflow-y: auto;
    white-space: pre-wrap;
}

/* Quiz */
.quiz-container {
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    margin-top: 2rem;
}

.quiz-question {
    margin-bottom: 2rem;
    display: none;
}

.quiz-question.active {
    display: block;
}

.quiz-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.quiz-option {
    padding: 1.5rem;
    border-radius: 8px;
    border: 2px solid #ecf0f1;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.quiz-option:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(52, 152, 219, 0.1);
}

.quiz-option.selected {
    border-color: var(--primary-color);
    background: #3498db10;
}

.quiz-option.correct {
    border-color: var(--success-color);
    background: #d4edda;
}

.quiz-option.incorrect {
    border-color: var(--danger-color);
    background: #f8d7da;
}

.option-content {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.option-checkbox {
    width: 24px;
    height: 24px;
    border: 2px solid #bdc3c7;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.option-checkbox.checked::after {
    content: '✓';
    color: white;
    font-weight: bold;
}

.option-checkbox.checked {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.quiz-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #ecf0f1;
}

.quiz-progress {
    font-weight: bold;
    color: var(--dark-color);
}

.quiz-results {
    margin-top: 2rem;
    padding: 2rem;
    border-radius: 8px;
    display: none;
}

/* Resumen */
.summary-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.learned-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.learned-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-left: 4px solid var(--primary-color);
}

.learned-icon {
    font-size: 2rem;
    color: var(--primary-color);
}

.learned-content h5 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.learned-content ul {
    margin: 0;
    padding-left: 1.5rem;
}

.learned-content li {
    margin-bottom: 0.25rem;
    color: #666;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.resource-card {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s ease;
}

.resource-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.resource-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.resource-content h6 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.resource-content p {
    color: #666;
    font-size: 0.9rem;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.step-card {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-weight: bold;
    flex-shrink: 0;
}

.download-resources {
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    border-top: 4px solid var(--accent-color);
}

.download-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border: 2px solid #ddd;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
}

.download-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.download-btn i {
    font-size: 1.5rem;
}

.download-btn div {
    display: flex;
    flex-direction: column;
}

.download-btn span {
    font-weight: bold;
}

.download-btn small {
    font-size: 0.9rem;
    opacity: 0.8;
}

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

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

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Estilos para bloques de código */
.code-block {
    position: relative;
    background: #1e1e1e;
    border-radius: 8px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    overflow-x: auto;
}

.code-block pre {
    margin: 0;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.copy-code-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.code-block:hover .copy-code-btn {
    opacity: 1;
}

.tool-btn.small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.tool-btn.hint {
    background: var(--accent-color);
}

.tool-btn.hint:hover {
    background: #8e44ad;
}

.test-btn {
    padding: 0.75rem 2rem;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.test-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.test-btn:disabled:hover {
    background: transparent;
    color: var(--primary-color);
}