:root {
    --color-green: #556B2F; /* Verde Oliva */
    --color-green-light: #6B8E23;
    --color-gold: #D4AF37; /* Amarillo Oro */
    --color-gold-light: #FFD700;
    --color-bg: #F4F6F4;
    --color-text: #333;
    --color-white: #FFF;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --border-radius: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.main-header {
    background-color: var(--color-green);
    color: var(--color-white);
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 4px solid var(--color-gold);
}

.header-content h1 {
    font-size: 24px;
    font-weight: 700;
}

.header-content p {
    font-size: 14px;
    color: var(--color-gold-light);
    font-weight: 600;
}

.progress-container {
    width: 300px;
    height: 12px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    overflow: hidden;
    margin: 0 20px;
}

.progress-bar {
    height: 100%;
    background-color: var(--color-gold-light);
    width: 0%;
    transition: width 0.5s ease;
}

.progress-text {
    font-weight: 600;
}

/* Layout Container */
.app-container {
    display: flex;
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 40px 20px;
    gap: 30px;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow);
    height: fit-content;
}

.sidebar h2 {
    color: var(--color-green);
    margin-bottom: 15px;
    font-size: 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-bg);
}

#moduleList {
    list-style: none;
}

.module-link {
    padding: 12px 15px;
    margin-bottom: 8px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    color: #666;
}

.module-link:hover {
    background-color: var(--color-bg);
    color: var(--color-green);
}

.module-link.active {
    background-color: var(--color-green);
    color: var(--color-white);
}

.module-number {
    background-color: var(--color-gold);
    color: var(--color-white);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-right: 10px;
    font-size: 12px;
}

/* Content Area */
.content-area {
    flex: 1;
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
}

.module-section {
    display: none;
    animation: fadeIn 0.4s ease-in-out;
}

.module-section.active {
    display: block;
}

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

.module-section h2 {
    color: var(--color-green);
    margin-bottom: 20px;
    font-size: 28px;
    border-bottom: 3px solid var(--color-gold);
    padding-bottom: 10px;
    display: inline-block;
}

.module-content {
    line-height: 1.7;
    font-size: 16px;
    color: #444;
    margin-bottom: 40px;
}

.module-content p {
    margin-bottom: 15px;
}

/* Quiz Section */
.quiz-container {
    background-color: var(--color-bg);
    border-left: 5px solid var(--color-gold);
    padding: 25px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
}

.quiz-container h3 {
    color: var(--color-green);
    margin-bottom: 20px;
}

.question-block {
    margin-bottom: 20px;
    background: var(--color-white);
    padding: 15px;
    border-radius: 5px;
    border: 1px solid #ddd;
}

.question-text {
    font-weight: 600;
    margin-bottom: 10px;
}

.options-list {
    list-style: none;
}

.option-item {
    margin-bottom: 8px;
}

.option-item label {
    cursor: pointer;
    display: flex;
    align-items: center;
    font-size: 14px;
}

.option-item input {
    margin-right: 10px;
    accent-color: var(--color-green);
}

.btn-submit, .btn-next {
    background-color: var(--color-gold);
    color: var(--color-white);
    border: none;
    padding: 12px 24px;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.btn-submit:hover, .btn-next:hover {
    background-color: var(--color-green);
}

.btn-next {
    background-color: var(--color-green);
    display: none; /* Se muestra al aprobar */
    margin-top: 10px;
}

.quiz-result {
    margin-top: 15px;
    font-weight: 600;
    padding: 10px;
    border-radius: 5px;
}

.result-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.result-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Responsividad */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
    }
    .main-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}