/**
 * Course Player - Enhanced Version (FIXED)
 * Aligned with MedPrepOnline teal theme
 * Supports multiple files per content
 */

/* ============================================
   BASE STYLES
   ============================================ */
/* * {
    box-sizing: border-box;
} */

/* body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-gray);
} */

/* ============================================
   MAIN CONTAINER
   ============================================ */
.course-player-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0;
    background: var(--bg-white);
    min-height: 100vh;
}

/* ============================================
   COURSE HEADER & BREADCRUMB
   ============================================ */
.course-header {
    background: var(--primary-gradient);
    color: white;
    padding: 1rem 1.25rem;
}

.breadcrumb-container {
    margin-bottom: 0.75rem;
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.breadcrumb-link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: var(--transition-fast);
}

.breadcrumb-link:hover {
    color: white;
    text-decoration: underline;
}

.breadcrumb-separator {
    color: rgba(255, 255, 255, 0.6);
}

.breadcrumb-current {
    color: white;
    font-weight: 500;
}

/* ============================================
   ACTION BUTTONS
   ============================================ */
.course-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.btn-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-message {
    background: var(--primary-dark);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-message:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.btn-edit {
    background: white;
    color: var(--primary-color);
    border: 1px solid white;
}

.btn-edit:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

/* ============================================
   PROGRESS SECTION
   ============================================ */
.progress-section {
    padding: 1rem 1.25rem;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
}

.progress-bar-wrapper {
    width: 100%;
    height: 8px;
    background: var(--bg-gray);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-bar {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    transition: width 0.6s ease;
}

.progress-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-medium);
}

.progress-label {
    font-weight: 500;
    color: var(--text-dark);
}

.progress-value {
    font-weight: 700;
    color: var(--primary-color);
}

.progress-items {
    color: var(--text-light);
}

/* ============================================
   COURSE CONTENT LIST
   ============================================ */
.course-content-list {
    padding: 0;
}

/* ============================================
   CONTENT SECTION
   ============================================ */
.content-section {
    margin-bottom: 0.5rem;
}

.section-header {
    background: var(--bg-gray);
    padding: 1rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
    transition: var(--transition-fast);
}

.section-header:hover {
    background: var(--bg-gray-dark);
}

.section-title {
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--text-dark);
}

.section-toggle {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.section-toggle i {
    color: var(--text-medium);
    font-size: 0.9rem;
    transition: transform 0.3s;
}

.section-header:hover .section-toggle {
    background: white;
}

/* Collapsed state */
.content-section.collapsed .section-items {
    display: none;
}

.content-section.collapsed .section-toggle i {
    transform: rotate(0deg);
}

.content-section:not(.collapsed) .section-toggle i {
    transform: rotate(90deg);
}

/* ============================================
   SECTION ITEMS CONTAINER
   ============================================ */
.section-items {
    background: white;
    padding: 0;
}

/* ============================================
   CONTENT ITEM
   ============================================ */
.content-item {
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition-fast);
}

.content-item:last-child {
    border-bottom: none;
}

.content-item:hover {
    background: var(--bg-gray);
}

.content-item.standalone {
    background: white;
    margin-bottom: 0.5rem;
}

/* ============================================
   CONTENT LINK WRAPPER
   ============================================ */
.content-link-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 1.25rem;
}

.content-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
    width: 100%;
    padding: 1rem 1.25rem;
}

.content-link:hover {
    color: var(--primary-color);
}

/* ============================================
   CONTENT ICON
   ============================================ */
.content-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.content-icon i.fa-play-circle {
    color: var(--primary-color);
}

.content-icon i.fa-file-pdf {
    color: var(--danger-red);
}

.content-icon i.fa-file-alt,
.content-icon i.fa-book-open,
.content-icon i.fa-file-word {
    color: var(--text-medium);
}

.content-icon i.fa-image {
    color: #8b5cf6;
}

.content-icon i.completed-icon {
    color: var(--success-green);
}

.content-icon i.fa-clipboard-question {
    color: var(--warning-yellow);
}

/* ============================================
   CONTENT DETAILS
   ============================================ */
.content-details {
    flex: 1;
    min-width: 0;
}

.content-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-dark);
    line-height: 1.4;
    margin-bottom: 0.5rem;
}

/* ============================================
   CONTENT FILES LIST
   ============================================ */
.content-files-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.file-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-gray);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition-fast);
    max-width: fit-content;
}

.file-link:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.file-link i {
    font-size: 1rem;
    flex-shrink: 0;
}

.file-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 300px;
}

/* File icon colors */
.file-link i.fa-play-circle {
    color: var(--primary-color);
}

.file-link i.fa-file-pdf {
    color: var(--danger-red);
}

.file-link i.fa-file-word,
.file-link i.fa-file-alt {
    color: #2563eb;
}

.file-link i.fa-image {
    color: #8b5cf6;
}

.file-link i.fa-file-audio {
    color: var(--success-light);
}

.file-link i.fa-file-archive {
    color: var(--warning-yellow);
}

.file-link i.fa-file-excel {
    color: var(--success-green);
}

/* ============================================
   CONTENT META
   ============================================ */
.content-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

.content-meta i {
    font-size: 0.75rem;
}

.content-meta .separator {
    color: var(--border-light);
}

/* ============================================
   CONTENT ARROW
   ============================================ */
.content-arrow {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-gray);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.content-arrow i {
    color: var(--text-medium);
    font-size: 0.9rem;
}

.content-link-wrapper:hover .content-arrow {
    background: var(--primary-light);
}

.content-link-wrapper:hover .content-arrow i {
    color: var(--primary-color);
}

/* Completed items */
.content-item.completed .content-link-wrapper {
    opacity: 0.7;
}

.content-item.completed:hover .content-link-wrapper {
    opacity: 1;
}

/* ============================================
   EMPTY STATES
   ============================================ */
.empty-section,
.empty-state {
    padding: 3rem 1.25rem;
    text-align: center;
    color: var(--text-medium);
}

.empty-section i,
.empty-state .empty-icon i {
    font-size: 3rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.empty-state h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.empty-state p {
    font-size: 0.95rem;
    color: var(--text-medium);
    margin-bottom: 1.5rem;
}

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

.btn-back:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

/* ============================================
   BOTTOM NAVIGATION
   ============================================ */
.bottom-nav {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 0.5rem;
    z-index: var(--z-fixed);
}

.nav-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.nav-btn i {
    font-size: 1.1rem;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
    .course-player-container {
        max-width: 100%;
    }

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

    .btn-action {
        justify-content: center;
        width: 100%;
    }

    .bottom-nav {
        right: 10px;
        bottom: 10px;
    }

    .nav-btn {
        width: 42px;
        height: 42px;
    }

    .file-name {
        max-width: 200px;
    }
}

@media (max-width: 480px) {

    .course-header,
    .progress-section,
    .section-header,
    .content-link-wrapper {
        padding: 0.875rem 1rem;
    }

    .content-link-wrapper {
        gap: 0.75rem;
    }

    .content-icon {
        width: 36px;
        height: 36px;
        font-size: 1.3rem;
    }

    .content-title {
        font-size: 0.9rem;
    }

    .content-meta {
        font-size: 0.75rem;
    }

    .section-title {
        font-size: 0.85rem;
    }

    .file-link {
        font-size: 0.8rem;
        padding: 0.4rem 0.6rem;
    }

    .file-name {
        max-width: 150px;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
.content-link:focus,
.section-header:focus,
.btn-action:focus,
.nav-btn:focus,
.file-link:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (prefers-contrast: high) {
    .content-item {
        border-width: 2px;
    }

    .section-header {
        border: 2px solid var(--text-dark);
    }
}