/* Single Course Page - Premium Mature Design */
:root {
    --iw-primary: #234e52;
    --iw-primary-light: #2a5c61;
    --iw-primary-dark: #1c3d40;
    --iw-secondary: #7f1102;
    --iw-secondary-light: #961502;
    --iw-secondary-dark: #660e02;
    --iw-third: #d4a373;
    --iw-third-light: #dcb48a;
    --iw-third-dark: #c9935c;
    --iw-fourth: #a3be8c;
    --iw-fourth-light: #b0c89d;
    --iw-fourth-dark: #96b47b;
    
    --iw-white: #ffffff;
    --iw-gray-50: #fafafa;
    --iw-gray-100: #f4f4f5;
    --iw-gray-200: #e4e4e7;
    --iw-gray-300: #d4d4d8;
    --iw-gray-400: #a1a1aa;
    --iw-gray-500: #71717a;
    --iw-gray-600: #52525b;
    --iw-gray-700: #3f3f46;
    --iw-gray-800: #27272a;
    --iw-gray-900: #18181b;
    
    --iw-text: var(--iw-gray-800);
    --iw-text-light: var(--iw-gray-600);
    --iw-border: var(--iw-gray-200);
    --iw-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --iw-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --iw-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --iw-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --iw-radius: 8px;
    --iw-radius-md: 12px;
    --iw-radius-lg: 16px;
    --iw-radius-xl: 20px;
}

/* Reset and Base Styles */
.iw-tutor-course-page {
    font-family: 'Philosopher', 'Amiri', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--iw-text);
    line-height: 1.6;
    background: var(--iw-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.iw-tutor-course-page * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Premium Course Header */
.iw-course-hero {
    /* Reduced padding, removed background/border for an empty header */
    min-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    margin-bottom: 0;
    background: transparent;
    border-bottom: none;

    position: relative;
    overflow: hidden;
}

.iw-course-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(35, 78, 82, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(163, 190, 140, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.iw-title-container {
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
    position: relative;
}

.iw-title-box {
    background: var(--iw-white);
    border: 1px solid var(--iw-border);
    border-radius: var(--iw-radius-xl);
    padding: 3rem;
    box-shadow: var(--iw-shadow-lg);
    position: relative;
    backdrop-filter: blur(10px);
}

.iw-course-title {
    font-family: 'Philosopher', serif;
    color: var(--iw-primary);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 1rem 0;
    letter-spacing: -0.02em;
}

.iw-title-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--iw-primary), var(--iw-third));
    margin: 0 auto 2rem;
    border-radius: 2px;
}

.iw-hero-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.iw-meta-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--iw-text-light);
    font-size: 0.95rem;
    font-weight: 500;
}

.iw-meta-icon {
    width: 32px;
    height: 32px;
    background: var(--iw-gray-100);
    border-radius: var(--iw-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--iw-primary);
}

/* --- THUMBNAIL STYLING TWEAKS (HEADER & MEDIA SECTION) --- */
.iw-hero-thumbnail {
    max-width: 400px;
    margin: 0 auto; /* Ensures centering */
}

.iw-thumbnail-frame {
    border-radius: var(--iw-radius-lg); 
    overflow: hidden;
    box-shadow: var(--iw-shadow-xl);
    border: 1px solid var(--iw-border);
}

.iw-thumbnail-frame img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--iw-radius-lg);
}

/* Styling for the thumbnail in the media section/content area (tutor-course-thumbnail) */
.tutor-course-thumbnail {
    max-width: 100%; /* Ensure responsiveness */
    margin: 0 auto; /* Center alignment */
    display: block; /* Treat as block to honor margin: auto */
    border-radius: var(--iw-radius-lg);
    overflow: hidden;
}

.tutor-course-thumbnail img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--iw-radius-lg); /* Ensure rounded corners on the actual image */
    box-shadow: var(--iw-shadow-md);
}
/* --- END THUMBNAIL STYLING TWEAKS --- */


/* Main Content Layout */
.iw-course-main-wrapper.centered {
    max-width: 1000px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.iw-course-content-area {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Premium Navigation */
.iw-course-navigation {
    background: var(--iw-white);
    border: 1px solid var(--iw-border);
    border-radius: var(--iw-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--iw-shadow);
}

.iw-course-nav-items {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.iw-course-nav-item {
    background: var(--iw-white);
    border: 1px solid var(--iw-border);
    border-radius: var(--iw-radius);
    padding: 1rem 1.5rem;
    color: var(--iw-text-light);
    font-family: 'Philosopher', serif;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.iw-course-nav-item:hover {
    border-color: var(--iw-primary);
    color: var(--iw-primary);
    transform: translateY(-1px);
    box-shadow: var(--iw-shadow);
}

.iw-course-nav-item.active {
    background: var(--iw-primary);
    border-color: var(--iw-primary);
    color: var(--iw-white);
    box-shadow: var(--iw-shadow-md);
}

.iw-nav-icon {
    font-size: 1.1rem;
}

/* Tab Content */
.iw-tab-content-container {
    background: var(--iw-white);
    border: 1px solid var(--iw-border);
    border-radius: var(--iw-radius-lg);
    overflow: hidden;
    box-shadow: var(--iw-shadow);
}

.iw-tab-content {
    display: none;
}

.iw-tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.iw-tab-content-inner {
    padding: 2.5rem;
}

/* Premium Course Content Redesign */
.iw-tab-content .tutor-accordion {
    background: transparent;
    border: none;
    border-radius: 0;
}

.iw-tab-content .tutor-accordion-item {
    background: var(--iw-white);
    border: 1px solid var(--iw-border);
    border-radius: var(--iw-radius-lg);
    margin-bottom: 1.5rem;
    box-shadow: var(--iw-shadow);
    transition: all 0.2s ease;
    overflow: hidden;
}

.iw-tab-content .tutor-accordion-item:hover {
    box-shadow: var(--iw-shadow-md);
    border-color: var(--iw-gray-300);
}

.iw-tab-content .tutor-accordion-item-header {
    background: var(--iw-white);
    padding: 2rem 2.5rem;
    border: none;
    margin: 0;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.iw-tab-content .tutor-accordion-item-header:hover {
    background: var(--iw-gray-50);
}

/* REMOVE ACTIVE CLASS STYLING TO AVOID INITIAL OPEN STATE */
/* .iw-tab-content .tutor-accordion-item-header.is-active {
    background: var(--iw-gray-50);
    border-bottom: 1px solid var(--iw-border);
} */

.iw-tab-content .tutor-accordion-item-header h4 {
    font-family: 'Philosopher', serif;
    color: var(--iw-primary);
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
    line-height: 1.4;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.iw-tab-content .tutor-accordion-item-header h4::before {
    content: '';
    width: 4px;
    height: 24px;
    background: var(--iw-primary);
    border-radius: 2px;
    flex-shrink: 0;
    margin-top: 0.25rem;
}

/* Enhanced Tooltip */
.iw-tab-content .tooltip-wrap {
    margin-left: auto;
    flex-shrink: 0;
}

.iw-tab-content .tooltip-icon {
    width: 28px;
    height: 28px;
    background: var(--iw-gray-200);
    border-radius: var(--iw-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.9rem;
    color: var(--iw-text-light);
}

.iw-tab-content .tooltip-icon:hover {
    background: var(--iw-primary);
    color: var(--iw-white);
}

.iw-tab-content .tooltip-txt {
    background: var(--iw-gray-800);
    color: var(--iw-white);
    padding: 1rem 1.25rem;
    border-radius: var(--iw-radius-md);
    font-size: 0.9rem;
    line-height: 1.5;
    max-width: 320px;
    box-shadow: var(--iw-shadow-xl);
    border: 1px solid var(--iw-gray-700);
}

.iw-tab-content .tooltip-right::before {
    border-right-color: var(--iw-gray-800);
}

/* Chapter Content */
.iw-tab-content .tutor-accordion-item-body {
    background: var(--iw-white);
}

.iw-tab-content .tutor-accordion-item-body-content {
    padding: 2rem 2.5rem;
}

.iw-tab-content .tutor-course-content-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Premium Lesson/Quiz/Meeting Items */
.iw-tab-content .tutor-course-content-list-item {
    background: var(--iw-white);
    border: 1px solid var(--iw-border);
    border-radius: var(--iw-radius-md);
    padding: 1.5rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: between;
    position: relative;
}

.iw-tab-content .tutor-course-content-list-item:hover {
    border-color: var(--iw-gray-300);
    box-shadow: var(--iw-shadow);
    transform: translateY(-1px);
}

.iw-tab-content .tutor-course-content-list-item .tutor-d-flex {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex: 1;
}

/* ------------------------------------------------ */
/* START: MATURE ICON UPDATES (Using simple Unicode for compatibility) */
/* ------------------------------------------------ */

/* Sophisticated Content Icons (Base Style) */
.iw-tab-content .tutor-course-content-list-item-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--iw-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.2s ease;
    flex-shrink: 0;
    background: var(--iw-gray-100);
    color: var(--iw-text-light);
    font-family: sans-serif; /* Use standard font */
}

/* 1. Video Lesson Icon (Replaces YouTube/Video) */
.iw-tab-content .tutor-icon-brand-youtube-bold::before {
    /* Use a simple, universal Video Camera symbol */
    content: '🎥'; 
    font-family: sans-serif; /* Override any potential custom font for this element */
    font-weight: normal;
}

/* 2. Live Meeting Icon (Replaces Google Meet) */
.iw-tab-content .tutor-icon-brand-google-meet::before {
    /* Use a simple, universal Calendar symbol */
    content: '📅'; 
    font-family: sans-serif;
    font-weight: normal;
    color: var(--iw-primary); 
}

/* 3. Quiz/Test Icon (Replaces Question Mark) */
.iw-tab-content .tutor-icon-circle-question-mark::before {
    /* Use a professional Note of Interrogation symbol */
    content: '❓'; 
    font-family: sans-serif;
    font-weight: normal;
}

/* ------------------------------------------------ */
/* START: EYE ICON REMOVAL - CRITICAL TWEAK */
/* ------------------------------------------------ */

/* Remove/Hide the Status Icon (tutor-icon-eye-line) */
.iw-tab-content .tutor-course-content-list-item-status.tutor-icon-eye-line {
    /* Aggressively hide the eye icon span */
    display: none !important;
    visibility: hidden;
    width: 0;
    margin-left: 0;
}

.iw-tab-content .tutor-course-content-list-item-status {
    /* Hiding all elements with this class for a cleaner look */
    display: none; 
}

/* Adjust layout since the status icon is removed */
.iw-tab-content .tutor-d-flex.tutor-align-center.tutor-flex-shrink-0.tutor-mt-2 {
    /* Adjust the spacing of the duration element which is now the last child in the right-side flex container */
    margin-right: 0 !important; /* Ensure no residual margin */
}

/* ------------------------------------------------ */
/* END: EYE ICON REMOVAL */
/* ------------------------------------------------ */

/* Content Titles */
.iw-tab-content .tutor-course-content-list-item-title {
    margin: 0;
    flex: 1;
}

.iw-tab-content .tutor-course-content-list-item-title a {
    font-family: 'Philosopher', serif;
    color: var(--iw-text);
    font-size: 1.05rem;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s ease;
    display: block;
    line-height: 1.4;
}

.iw-tab-content .tutor-course-content-list-item:hover .tutor-course-content-list-item-title a {
    color: var(--iw-primary);
}

/* Content Metadata */
.iw-tab-content .tutor-course-content-list-item-duration {
    background: var(--iw-gray-100);
    padding: 0.375rem 0.75rem;
    border-radius: var(--iw-radius);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--iw-text-light);
    margin-right: 0; /* Adjusted: No longer need margin for the eye icon */
}

/* Progress Indicators */
.iw-tab-content .tutor-progress-indicator {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--iw-gray-200);
    overflow: hidden;
}

.iw-tab-content .tutor-progress-bar {
    height: 100%;
    background: var(--iw-primary);
    transition: width 0.3s ease;
    width: 0%;
}

/* Completion States */
.iw-tab-content .tutor-course-content-list-item.completed {
    background: var(--iw-gray-50);
    border-color: var(--iw-fourth);
}

.iw-tab-content .tutor-course-content-list-item.completed .tutor-course-content-list-item-icon {
    background: var(--iw-fourth);
    color: var(--iw-white);
}

.iw-tab-content .tutor-course-content-list-item.completed .tutor-course-content-list-item-status {
    /* Status icon is hidden, but if it were visible, this would apply: */
    background: var(--iw-fourth);
    color: var(--iw-white);
}

.iw-tab-content .tutor-course-content-list-item.completed .tutor-progress-bar {
    width: 100%;
    background: var(--iw-fourth);
}

/* Chapter Progress Summary */
.iw-tab-content .tutor-chapter-progress {
    display: flex;
    align-items: center;
    justify-content: between;
    padding: 1.25rem 1.5rem;
    background: var(--iw-gray-50);
    border-radius: var(--iw-radius-md);
    margin-bottom: 1.5rem;
    border: 1px solid var(--iw-border);
}

.iw-tab-content .tutor-progress-stats {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.iw-tab-content .tutor-progress-stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--iw-text-light);
}

.iw-tab-content .tutor-progress-value {
    font-weight: 600;
    color: var(--iw-primary);
}

.iw-tab-content .tutor-progress-track {
    flex: 1;
    max-width: 200px;
    height: 6px;
    background: var(--iw-gray-200);
    border-radius: 3px;
    overflow: hidden;
}

.iw-tab-content .tutor-progress-fill {
    height: 100%;
    background: var(--iw-primary);
    border-radius: 3px;
    transition: width 0.3s ease;
}

/* Empty State */
.iw-tab-content .tutor-empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--iw-text-light);
}

.iw-tab-content .tutor-empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.iw-tab-content .tutor-empty-state-text {
    font-size: 1.1rem;
    margin: 0;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .iw-course-hero {
        padding: 0 1rem; /* Reduced padding for mobile as well */
    }
    
    .iw-title-box {
        padding: 2rem 1.5rem;
    }
    
    .iw-course-title {
        font-size: 2rem;
    }
    
    .iw-hero-meta {
        gap: 1rem;
    }
    
    .iw-meta-item {
        font-size: 0.9rem;
    }
    
    .iw-course-main-wrapper.centered {
        padding: 2rem 1rem;
    }
    
    .iw-tab-content-inner {
        padding: 1.5rem;
    }
    
    .iw-tab-content .tutor-accordion-item-header {
        padding: 1.5rem;
    }
    
    .iw-tab-content .tutor-accordion-item-header h4 {
        font-size: 1.1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .iw-tab-content .tutor-accordion-item-body-content {
        padding: 1.5rem;
    }
    
    .iw-tab-content .tutor-course-content-list-item {
        padding: 1.25rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .iw-tab-content .tutor-course-content-list-item .tutor-d-flex {
        width: 100%;
    }
    
    .iw-tab-content .tutor-course-content-list-item .tutor-d-flex:last-child {
        justify-content: space-between;
    }
    
    .iw-tab-content .tooltip-wrap {
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
    }
    
    .iw-course-nav-items {
        flex-direction: column;
    }
    
    .iw-course-nav-item {
        justify-content: center;
    }
}

/* Desktop Enhancements */
@media (min-width: 1024px) {
    .iw-course-hero {
        padding: 0 2rem; /* Reduced padding for desktop as well */
    }
    
    .iw-course-title {
        font-size: 3rem;
    }
}

/* Focus States for Accessibility */
.iw-tutor-course-page *:focus {
    outline: 2px solid var(--iw-primary);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --iw-border: var(--iw-gray-700);
        --iw-shadow: 0 0 0 1px var(--iw-gray-700);
        --iw-shadow-md: 0 0 0 1px var(--iw-gray-700);
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .iw-tutor-course-page * {
        transition: none !important;
        animation: none !important;
    }
}

/* Print Styles */
@media print {
    .iw-course-navigation,
    .iw-tooltip-wrap {
        display: none;
    }
    
    .iw-tab-content-container {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .iw-course-content-list-item {
        break-inside: avoid;
    }
}