@charset "UTF-8";

@import "styles-core.css";

/* Breadcrumb
   No se usa en la página principal */
.breadcrumb {
    background: white;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

.breadcrumb nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius);
}

.breadcrumb a:hover,
.breadcrumb a:focus {
    background: var(--secondary-color);
}

.breadcrumb-separator {
    color: var(--text-light);
}

.breadcrumb .current {
    color: var(--text-color);
    font-weight: 500;
}

/* Layout principal */
.lesson-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
}

/* Contenido principal */
main {
    z-index: 10;
}

h2, h3, h4, :focus {
  scroll-margin-top: 70px; /* altura aproximada de la cabecera */
}

.lesson-content {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.lesson-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 2rem;
}

.lesson-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: white;
}

.lesson-subtitle {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: white;
}

.lesson-meta {
    display: flex;
    gap: 2rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

.lesson-body {
    padding: 1rem;
}

.meta-info {
    font-weight: bold;
}

/* Contenido de texto */
.lesson-body h2 {
    color: var(--primary-color);
    margin: 1rem 0 1rem 0;
    font-size: 1.5rem;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.lesson-body h3, .lesson-body summary[aria-level="2"], .lesson-body summary[aria-level="3"] {
    color: var(--text-color);
    margin: 1.5rem 0 1rem 0;
    font-size: 1.25rem;
    font-weight: bold;
}

.lesson-body summary[aria-level="2"], .lesson-body summary[aria-level="3"] {
    font-weight: bold;
    border-radius: var(--border-radius);
    cursor: pointer;
}

.lesson-body p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

.lesson-body ul, .lesson-body ol {
    margin: 1rem 0 1rem 2rem;
}

.lesson-body li {
    margin-bottom: 0.5rem;
}

/* Bloques de código */
.code-block {
    background: var(--code-bg);
    border: 1px solid var(--code-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
    overflow-x: auto;
    position: relative;
}

.code-block pre {
    margin: 0;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.4;
}

.code-block code {
    color: var(--text-color);
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--code-border);
}

.code-language {
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 500;
}

.copy-button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.copy-button:hover,
.copy-button:focus {
    background: var(--primary-dark);
}

.copy-button.copied {
    background: var(--success-color);
}

/* Código en línea */
code {
    padding: 0.125rem 0.3125rem 0.0625rem;
    border-width: 1px;
    border-style: solid;
    border-color: var(--code-border);
    font-family: Arial,Helvetica,sans-serif;
    font-weight: normal;
    color: var(--code-color);
    background-color: var(--code-bg);
}

/* Sidebar */
.lesson-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-section {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-color);
}

/* Progreso de la lección */
.lesson-progress {
    text-align: center;
}

.progress-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: conic-gradient(var(--primary-color) 0deg 252deg, var(--border-color) 252deg 360deg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    position: relative;
}

.progress-circle::before {
    content: '';
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: white;
    position: absolute;
}

.progress-text {
    position: relative;
    z-index: 1;
    font-weight: bold;
    color: var(--primary-color);
}

/* Navegación de lecciones */
.lesson-nav {
    list-style: none;
}

.lesson-nav-item {
    margin-bottom: 0.5rem;
}

.lesson-nav-link {
    display: block;
    padding: 0.75rem;
    text-decoration: none;
    color: var(--text-color);
    border-radius: var(--border-radius);
    transition: background-color 0.2s;
    font-size: 0.9rem;
}

.lesson-nav-link:hover,
.lesson-nav-link:focus {
    background: var(--secondary-color);
}

.lesson-nav-link.current {
    background: var(--primary-color);
    color: white;
}

.lesson-nav-link.completed {
    background: var(--success-color);
    color: white;
}

/* Botones de navegación */
.lesson-navigation {
    display: flex;
    justify-content: space-between;
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    background: var(--secondary-color);
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: background-color 0.2s;
}

.nav-btn.previous {
    justify-content: flex-start;
}

.nav-btn.next {
    justify-content: flex-end;
}

.nav-btn:hover,
.nav-btn:focus {
    background: var(--primary-dark);
}

.nav-btn.secondary {
    background: var(--border-color);
    color: var(--text-color);
}

.nav-btn.secondary:hover,
.nav-btn.secondary:focus {
    background: #cbd5e1;
}

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

/* Video player */
.video-container {
    position: relative;
    width: 100%;
    margin: 1.5rem 0;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.video-placeholder {
    background: #000;
    color: white;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.video-responsive-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 -> 9/16 = 56.25% */
    height: 0;
    overflow: hidden;
}

.video-responsive-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

.video-responsive-wrapper-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}


/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .info-box .info-box-header h2 {
        font-size: 1.25rem;
    }

    /* Breadcrumb
       No se usa en la página principal */
    .breadcrumb-content {
        padding: 0.5rem 1rem;
    }

    .breadcrumb nav {
        flex-wrap: wrap;
    }

    .lesson-container {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 0.5rem;
    }

    .lesson-header {
        padding: 1.5rem;
    }

    .lesson-title {
        font-size: 1.5rem;
    }

    .lesson-meta {
        flex-direction: column;
        gap: 0.5rem;
    }

    .lesson-body {
        padding: 0.5rem;
    }

    .lesson-navigation {
        flex-direction: column;
        gap: 1rem;
    }

    /* Cajas de información */
    .info-box {
    padding: 0.5rem;
    margin: 0.5rem 0;
    border-left: 4px solid;
    }
}