/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.5;
    color: #333;
    background-color: #f8fafc;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header and Navigation */
.header {
    background: #fff;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
}

.nav-logo i {
    margin-right: 0.5rem;
    font-size: 1.8rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    margin-right: 0.5rem;
    vertical-align: middle;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #64748b;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #2563eb;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
    color: white;
    padding: 120px 0 80px;
    margin-top: 80px;
}

.hero.ai-hero {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.hero-content-centered {
    max-width: 800px;
    width: 100%;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    opacity: 0.9;
    line-height: 1.4;
}

.hero-book-info {
    font-size: 1rem;
    margin-bottom: 2rem;
    opacity: 0.85;
    line-height: 1.5;
}

/* About Section */
.about {
    padding: 80px 0;
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #4b5563;
}

.about-text p {
    margin-bottom: 1.5rem;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: 12px;
    border-left: 4px solid #2563eb;
}

.feature-item i {
    font-size: 1.5rem;
    color: #2563eb;
    margin-top: 0.25rem;
}

.feature-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: #6b7280;
    font-size: 0.95rem;
    margin: 0;
}

/* Book Section */
.book-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

/* Courses Section */
.courses {
    padding: 80px 0;
    background: white;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.course-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border: 2px solid #e2e8f0;
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #3b82f6, #60a5fa);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(37, 99, 235, 0.15);
    border-color: #2563eb;
}

.course-card:hover::before {
    opacity: 1;
}

.course-card.ai-course {
    border-color: #3b82f6;
}

.course-card.ai-course:hover {
    border-color: #2563eb;
    box-shadow: 0 20px 50px rgba(37, 99, 235, 0.15);
}

.course-card.ai-course::before {
    background: linear-gradient(90deg, #3b82f6, #60a5fa, #93c5fd);
}

.course-badge {
    display: inline-block;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    border: 1px solid #93c5fd;
}

.course-badge.ai-badge {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    color: #1e40af;
    border-color: #93c5fd;
}

.course-card h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.course-description {
    color: #6b7280;
    margin-bottom: 2rem;
    line-height: 1.6;
    font-size: 1rem;
}

.course-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.course-features .feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #6b7280;
    font-size: 0.9rem;
    font-weight: 500;
}

.course-features .feature i {
    color: #2563eb;
    font-size: 1.1rem;
}

.ai-course .course-features .feature i {
    color: #3b82f6;
}

.course-cta {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.course-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
}

.course-cta.ai-cta {
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.course-cta.ai-cta:hover {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.book-highlight {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 20px;
    padding: 2.5rem;
    margin: 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    max-width: 800px;
    margin: 0 auto;
}

.book-highlight::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #dbeafe, #bfdbfe, #93c5fd);
}

.book-badge {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 1px solid #93c5fd;
}

.book-badge i {
    margin-right: 0.4rem;
    font-size: 0.8rem;
}

.book-title {
    font-size: 2rem;
    font-weight: 700;
    color: #1e40af;
    margin: 0.5rem 0;
    line-height: 1.2;
}

.book-author {
    font-size: 1.1rem;
    color: #6b7280;
    margin: 0.5rem 0 1rem;
    font-style: italic;
}

.book-description {
    font-size: 1rem;
    color: #4b5563;
    margin: 0 0 1.5rem;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.book-download-btn {
    display: inline-flex;
    align-items: center;
    background: #dbeafe;
    color: #1e40af;
    padding: 0.7rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(219, 234, 254, 0.3);
    border: 1px solid transparent;
}

.book-download-btn:hover {
    background: #bfdbfe;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(219, 234, 254, 0.4);
    border-color: rgba(255, 255, 255, 0.3);
}

.book-download-btn i {
    margin-right: 0.5rem;
    font-size: 1rem;
}

/* Video Section */
.video-section {
    padding: 60px 0;
    background: white;
}

.video-container {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
    padding: 0 15px;
}

.video-wrapper {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto 2rem;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.course-video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 15px;
    max-width: 100%;
    min-height: 300px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

/* Week Video Styles */
.week-video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 15px;
    max-width: 100%;
    min-height: 300px;
    max-height: 500px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    margin: 0 auto 2rem;
}

.video-description {
    font-size: 1rem;
    color: #6b7280;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
    font-style: italic;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #dbeafe;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    background: #dbeafe;
    color: #1e40af;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(219, 234, 254, 0.3);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(219, 234, 254, 0.4);
    background: #bfdbfe;
}

.cta-button i {
    margin-right: 0.5rem;
}

.cta-button.ai-cta {
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.cta-button.ai-cta:hover {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}


/* Section Styles */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: #1f2937;
}

.section-subtitle {
    font-size: 1.2rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #6b7280;
    font-style: italic;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Overview Section */
.overview {
    padding: 80px 0;
    background: white;
}

@media (max-width: 768px) {
    .overview {
        padding: 50px 0;
    }
    
    .curriculum {
        padding: 50px 0;
    }
    
    .resources {
        padding: 50px 0;
    }
    
    .contact {
        padding: 50px 0;
    }
    
    .video-section {
        padding: 50px 0;
    }
    
    .video-wrapper {
        margin: 0 auto 1.5rem;
        max-width: 100%;
        width: 100%;
    }
    
    .course-video {
        width: 100% !important;
        height: auto !important;
        max-width: 100% !important;
        min-height: 200px;
        display: block !important;
    }
    
    .week-video {
        width: 100% !important;
        height: auto !important;
        max-width: 100% !important;
        min-height: 200px;
        max-height: 300px;
        display: block !important;
    }
    
    .video-description {
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .overview {
        padding: 40px 0;
    }
    
    .curriculum {
        padding: 40px 0;
    }
    
    .resources {
        padding: 40px 0;
    }
    
    .video-section {
        padding: 40px 0;
    }
    
    .video-wrapper {
        margin: 0 auto 1rem;
        max-width: 100%;
        width: 100%;
    }
    
    .course-video {
        width: 100% !important;
        height: auto !important;
        max-width: 100% !important;
        min-height: 180px;
        display: block !important;
    }
    
    .week-video {
        width: 100% !important;
        height: auto !important;
        max-width: 100% !important;
        min-height: 180px;
        max-height: 250px;
        display: block !important;
    }
    
    .video-description {
        font-size: 0.9rem;
    }
    
    .contact {
        padding: 40px 0;
    }
}

@media (max-width: 320px) {
    .video-container {
        padding: 0 10px;
    }
    
    .video-wrapper {
        margin: 0 auto 1rem;
    }
    
    .course-video {
        min-height: 150px;
    }
    
    .week-video {
        min-height: 150px;
        max-height: 200px;
    }
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.overview-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: 2rem 1.5rem;
    border-radius: 15px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out;
    text-align: center;
}

.overview-card:nth-child(1) {
    animation-delay: 0.1s;
}

.overview-card:nth-child(2) {
    animation-delay: 0.2s;
}

.overview-card:nth-child(3) {
    animation-delay: 0.3s;
}

.overview-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #3b82f6, #60a5fa);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.overview-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(37, 99, 235, 0.15);
    border-color: #2563eb;
}

.overview-card:hover::before {
    opacity: 1;
}

.overview-card:hover i {
    transform: scale(1.1);
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-color: #2563eb;
}

.overview-card i {
    font-size: 2.5rem;
    color: #2563eb;
    margin-bottom: 1.5rem;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border-radius: 50%;
    border: 2px solid #e0e7ff;
    transition: all 0.3s ease;
    flex-shrink: 0;
    min-width: 70px;
    min-height: 70px;
}

.overview-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
    text-align: center;
    width: 100%;
}

.overview-card ul {
    list-style: none;
    width: 100%;
    text-align: left;
    margin: 0;
    padding: 0;
    max-width: 280px;
}

.overview-card li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
    color: #4b5563;
    font-size: 0.9rem;
    line-height: 1.4;
    margin-bottom: 0.25rem;
}

.overview-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0.5rem;
    color: #10b981;
    font-weight: bold;
    font-size: 1rem;
    line-height: 1;
}

/* Curriculum Section */
.curriculum {
    padding: 80px 0;
    background: #f8fafc;
}

.curriculum-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.week-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.week-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.week-number {
    display: inline-block;
    background: #2563eb;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-align: center;
}

.week-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
    text-align: center;
}

.week-card p {
    color: #64748b;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    text-align: center;
}


.week-link {
    display: inline-flex;
    align-items: center;
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-top: auto;
    justify-content: center;
    width: 100%;
}

.week-link:hover {
    color: #1d4ed8;
}

.week-link i {
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
}

.week-link:hover i {
    transform: translateX(3px);
}

.week-card.ai-week-card {
    border-left: 4px solid #3b82f6;
}

.week-card.ai-week-card:hover {
    border-color: #2563eb;
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.15);
}

.week-card.ai-week-card .week-number {
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
}

.week-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

/* Executive Summary Grid - 4 items in one row */
.executive-summary-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.summary-item {
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 1.5rem;
    text-align: left;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.summary-item:hover {
    border-color: #3b82f6;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.1);
    transform: translateY(-2px);
}

.summary-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    text-align: left;
}

.summary-item i {
    font-size: 1.5rem;
    color: #3b82f6;
    flex-shrink: 0;
}

.summary-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1f2937;
    margin: 0;
}

.summary-item p {
    color: #6b7280;
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
    flex-grow: 1;
}

.summary-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
    flex-grow: 1;
}

.summary-item li {
    color: #6b7280;
    font-size: 0.9rem;
    line-height: 1.4;
    margin-bottom: 0.5rem;
    padding-left: 1.2rem;
    position: relative;
}

.summary-item li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #3b82f6;
    font-weight: 700;
}

/* Time Investment Card Styles */
.time-card {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-color: #0ea5e9;
}

.time-breakdown {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.time-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid #e0f2fe;
}

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

.time-activity {
    color: #0c4a6e;
    font-weight: 500;
    font-size: 0.9rem;
}

.time-duration {
    color: #0369a1;
    font-weight: 600;
    font-size: 0.9rem;
    background: #bae6fd;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
}

/* Card Type Styling */
.insights-card {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-color: #f59e0b;
}

.question-card {
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    border-color: #6366f1;
}

.action-card {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    border-color: #22c55e;
}

/* Quiz Accordion */
.quiz-accordion {
    margin-top: 2rem;
}

.quiz-item {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.quiz-item:hover {
    border-color: #3b82f6;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.1);
}

.quiz-question {
    background: #3b82f6;
    color: white;
    padding: 1.5rem;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.quiz-question:hover {
    background: #2563eb;
}

.quiz-answer {
    padding: 1.5rem;
    background: white;
    color: #6b7280;
    border-top: 1px solid #e2e8f0;
    display: none;
    line-height: 1.6;
}

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

.quiz-toggle {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    transition: transform 0.3s ease;
    padding: 0.25rem;
}

.quiz-toggle.active {
    transform: rotate(180deg);
}

/* Progress Navigation Buttons */
.progress-nav-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.progress-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.progress-btn.primary {
    background: linear-gradient(135deg, #06d6a0 0%, #05c195 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(6, 214, 160, 0.3);
}

.progress-btn.primary:hover {
    background: linear-gradient(135deg, #05c195 0%, #04a085 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 214, 160, 0.4);
}

.progress-btn.secondary {
    background: transparent;
    color: #3b82f6;
    border-color: #3b82f6;
}

.progress-btn.secondary:hover {
    background: #3b82f6;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

/* Resources Section */
.resources {
    padding: 80px 0;
    background: white;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.further-reading-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
}

.resource-card {
    text-align: center;
    padding: 1.5rem 1rem;
    border-radius: 12px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.resource-card i {
    font-size: 2rem;
    color: #2563eb;
    margin-bottom: 0.75rem;
}

.resource-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: #1f2937;
    line-height: 1.3;
}

.resource-card p {
    color: #64748b;
    line-height: 1.4;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    flex-grow: 1;
}

.resource-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
    padding: 0.6rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
    margin-top: auto;
}

.resource-link:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.resource-link i {
    font-size: 0.8rem;
    margin: 0;
    color: white;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
    color: white;
}

.contact .section-title {
    color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.contact-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature {
    display: flex;
    align-items: center;
}

.feature i {
    color: #dbeafe;
    margin-right: 1rem;
    font-size: 1.2rem;
}

.contact-form {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 2rem;
}

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

.form-group input {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    resize: vertical;
    min-height: 100px;
}

.form-group textarea:focus {
    outline: none;
    border-color: #dbeafe;
    background: rgba(255, 255, 255, 0.15);
}

.submit-btn {
    width: 100%;
    background: #dbeafe;
    color: #1e40af;
    padding: 1rem 2rem;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: #bfdbfe;
    transform: translateY(-2px);
}

.course-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.course-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.course-link.dt-link {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
    border-color: #93c5fd;
}

.course-link.dt-link:hover {
    background: linear-gradient(135deg, #bfdbfe 0%, #93c5fd 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
}

.course-link.ai-link {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    color: #1e40af;
    border-color: #93c5fd;
}

.course-link.ai-link:hover {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
}

.course-link i {
    font-size: 1.2rem;
}

.footer-course-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
}

.footer-course-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #9ca3af;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-course-link:hover {
    color: #dbeafe;
}

.footer-course-link i {
    font-size: 0.8rem;
}

.footer-book-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
}

/* Footer */
.footer {
    background: #1e3a8a;
    color: white;
    padding: 3rem 0 1rem;
}

/* Mobile Footer */
@media (max-width: 768px) {
    .footer {
        padding: 1rem 0 0.5rem; /* Reduced padding for mobile */
    }
    
    .footer-content {
        margin-bottom: 1rem; /* Reduced margin for mobile */
    }
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #dbeafe;
}

.footer-section p {
    color: #9ca3af;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #dbeafe;
}

.footer-book-link {
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    color: #dbeafe;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    margin-top: 1rem;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-book-link:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    transform: translateY(-2px);
}

.footer-book-link i {
    margin-right: 0.5rem;
    font-size: 0.8rem;
}

.footer-bottom {
    border-top: 1px solid #3b82f6;
    padding-top: 1rem;
    text-align: center;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .hero-container {
        padding: 0 15px;
    }
    
    .overview-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }
    
    .overview-card {
        padding: 1.25rem 1rem;
    }
    
    .overview-card i {
        width: 50px;
        height: 50px;
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.15rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 8px; /* Reduced for better mobile screen utilization */
    }
    
    .nav-container {
        padding: 0 12px; /* Reduced for mobile */
    }
    
    .hero-container {
        padding: 0 12px; /* Reduced for mobile */
    }
    
    .week-content .container {
        padding: 0 8px; /* Reduced for mobile */
    }
    
    /* Improve mobile breadcrumb spacing */
    .breadcrumb {
        margin-top: 130px; /* Significantly increased to clear header on mobile */
        padding: 12px 16px; /* Reduced padding for mobile */
        font-size: 13px; /* Slightly smaller font */
    }
    
    /* Improve mobile main container */
    .main-container {
        margin-top: 100px; /* Reduced for mobile */
        padding: 8px; /* Drastically reduced for mobile */
        margin-left: 2px; /* Minimal margins for mobile */
        margin-right: 2px;
        margin-bottom: 10px; /* Minimal bottom margin for mobile */
    }
    
    .executive-summary {
        padding: 1.5rem;
        margin: 1rem 0;
    }
    
    .key-insights {
        padding: 1rem;
        margin: 1rem 0;
    }
    
    .structure-grid,
    .assessment-grid,
    .perspectives-grid,
    .takeaways-grid {
        gap: 1rem;
    }
    
    .structure-category,
    .assessment-item,
    .perspective-item,
    .takeaway-item {
        padding: 1rem;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .course-card {
        padding: 2rem 1.5rem;
    }
    
    .course-features {
        gap: 1rem;
        flex-direction: column;
        align-items: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-features {
        gap: 1.5rem;
    }
    
    .feature-item {
        padding: 1.25rem;
    }
    
    .course-links {
        gap: 0.75rem;
    }
    
    .course-link {
        padding: 0.875rem 1.25rem;
        font-size: 0.95rem;
    }
    
    .executive-summary-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .summary-item {
        padding: 1.25rem;
    }
    
    .progress-nav-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .progress-btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .hamburger {
        display: flex;
    }
}

@media (max-width: 480px) {
    .executive-summary-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .summary-item {
        padding: 1rem;
    }
    
    .quiz-question {
        padding: 1rem;
        font-size: 0.95rem;
    }
    
    .quiz-answer {
        padding: 1rem;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        z-index: 999;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 1rem 0;
    }
    
    .nav-link {
        font-size: 1.1rem;
        padding: 0.5rem 1rem;
        display: block;
    }

    .hero {
        padding: 80px 0 60px;
        margin-top: 70px;
    }

    .hero-container {
        text-align: center;
    }

    .hero-title {
        font-size: 2.6rem;
        line-height: 1.2;
        margin-bottom: 1.2rem;
        font-weight: 800;
    }

    .hero-subtitle {
        font-size: 1.3rem;
        line-height: 1.4;
        margin-bottom: 1.2rem;
        font-weight: 600;
    }
    
    .book-section {
        padding: 40px 0;
    }
    
    .book-highlight {
        padding: 1.5rem;
    }
    
    .book-title {
        font-size: 1.6rem;
    }
    
    .book-author {
        font-size: 1rem;
    }
    
    .book-description {
        font-size: 0.95rem;
    }
    
    .book-download-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.95rem;
    }

    .hero-stats {
        justify-content: center;
        gap: 1.2rem;
        margin-bottom: 1.5rem;
        flex-wrap: wrap;
    }
    
    .stat {
        flex: 1;
        min-width: 0;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }

    .cta-button {
        padding: 0.9rem 1.8rem;
        font-size: 1rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .curriculum-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .overview-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .overview-card {
        padding: 1rem 0.8rem;
    }
    
    .overview-card i {
        width: 45px;
        height: 45px;
        font-size: 1.8rem;
        margin-bottom: 0.8rem;
    }
    
    .overview-card h3 {
        font-size: 1.1rem;
        margin-bottom: 0.8rem;
    }
    
    .overview-card li {
        font-size: 0.85rem;
        line-height: 1.4;
        padding: 0.3rem 0 0.3rem 1.2rem;
        text-align: left;
        margin-bottom: 0.15rem;
    }

    .resources-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.25rem;
    }
    
    .further-reading-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.25rem;
    }
    
    .resource-card {
        padding: 1.25rem 1rem;
    }
    
    .resource-card i {
        font-size: 1.8rem;
        margin-bottom: 0.75rem;
    }
    
    .resource-card h3 {
        font-size: 1.1rem;
        margin-bottom: 0.75rem;
    }
    
    .resource-card p {
        font-size: 0.85rem;
        line-height: 1.4;
    }
    
    .week-card {
        padding: 1.75rem 1.5rem;
    }
    
    .week-card h3 {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }
    
    .week-card p {
        font-size: 0.95rem;
        line-height: 1.5;
        margin-bottom: 1.25rem;
    }
    
    .section-title {
        font-size: 2.2rem;
        margin-bottom: 0.8rem;
        line-height: 1.2;
    }
    
    .section-subtitle {
        font-size: 1.1rem;
        margin-bottom: 1.5rem;
        line-height: 1.4;
    }
    
    .contact-info h3 {
        font-size: 1.75rem;
    }
    
    .contact-info p {
        font-size: 1rem;
    }
    
    .form-group input,
    .form-group textarea {
        font-size: 1rem;
        padding: 0.9rem;
    }
    
    .submit-btn {
        font-size: 1rem;
        padding: 0.9rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 4px; /* Significantly reduced for small screens */
    }
    
    .nav-container {
        padding: 0 8px; /* Reduced for small screens */
    }
    
    .hero-container {
        padding: 0 8px; /* Reduced for small screens */
    }
    
    /* Further improve mobile breadcrumb for small screens */
    .breadcrumb {
        margin-top: 120px; /* Significantly increased to clear header on small screens */
        padding: 10px 12px; /* Further reduced padding */
        font-size: 12px; /* Smaller font for small screens */
        margin-left: 4px; /* Add small margins */
        margin-right: 4px;
    }
    
    /* Further improve mobile main container for small screens */
    .main-container {
        margin-top: 90px; /* Reduced for small screens */
        padding: 6px; /* Minimal padding for small screens */
        margin-left: 1px; /* Minimal margins for small screens */
        margin-right: 1px;
        margin-bottom: 5px; /* Minimal bottom margin for small screens */
    }
    
    /* Improve font sizes for small screens */
    h1 {
        font-size: 1.8rem; /* Reduced from default */
    }
    
    h2 {
        font-size: 1.4rem; /* Reduced from default */
    }
    
    h3 {
        font-size: 1.2rem; /* Reduced from default */
    }
    
    p {
        font-size: 0.95rem; /* Slightly smaller for better fit */
        line-height: 1.5; /* Better line spacing */
    }
    
    .week-content .container {
        padding: 0 4px;
    }
    
    .executive-summary {
        padding: 1.25rem;
        margin: 0.8rem 0;
    }
    
    .key-insights {
        padding: 0.8rem;
        margin: 0.8rem 0;
    }
    
    .structure-grid,
    .assessment-grid,
    .perspectives-grid,
    .takeaways-grid {
        gap: 0.8rem;
    }
    
    .structure-category,
    .assessment-item,
    .perspective-item,
    .takeaway-item {
        padding: 0.8rem;
    }
    
    .hero {
        padding: 50px 0 30px;
        margin-top: 65px;
    }

    .hero-title {
        font-size: 2.2rem;
        line-height: 1.1;
        margin-bottom: 0.8rem;
        font-weight: 800;
    }

    .hero-subtitle {
        font-size: 1.2rem;
        line-height: 1.3;
        margin-bottom: 0.8rem;
        font-weight: 600;
    }
    
    .book-section {
        padding: 30px 0;
    }
    
    .book-highlight {
        padding: 1.25rem;
    }
    
    .book-title {
        font-size: 1.4rem;
    }
    
    .book-author {
        font-size: 0.95rem;
    }
    
    .book-description {
        font-size: 0.9rem;
    }
    
    .book-download-btn {
        padding: 0.7rem 1.25rem;
        font-size: 0.9rem;
    }

    .hero-stats {
        flex-direction: row;
        gap: 0.8rem;
        margin-bottom: 1.5rem;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    body {
        line-height: 1.4;
    }
    
    .stat {
        flex: 1;
        min-width: 0;
    }

    .stat-number {
        font-size: 1.4rem;
    }
    
    .stat-label {
        font-size: 0.7rem;
    }

    .cta-button {
        padding: 0.8rem 1.5rem;
        font-size: 0.95rem;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 0.3rem;
        line-height: 1.1;
    }
    
    .section-subtitle {
        font-size: 1rem;
        margin-bottom: 0.8rem;
        line-height: 1.2;
    }

    .week-card,
    .overview-card,
    .resource-card {
        padding: 0.8rem 0.6rem;
    }
    
    .overview-card i {
        width: 40px;
        height: 40px;
        font-size: 1.6rem;
        margin-bottom: 0.6rem;
    }
    
    .overview-card h3 {
        font-size: 1rem;
        margin-bottom: 0.6rem;
    }
    
    .overview-card li {
        font-size: 0.8rem;
        line-height: 1.3;
        padding: 0.25rem 0 0.25rem 1rem;
        text-align: left;
        margin-bottom: 0.1rem;
    }
    
    .overview-card li::before {
        top: 0.25rem;
        font-size: 0.9rem;
    }
    
    .resource-card i {
        font-size: 2rem;
        margin-bottom: 1rem;
    }
    
    .resource-card h3 {
        font-size: 1.2rem;
        margin-bottom: 0.8rem;
    }
    
    .resource-card p {
        font-size: 0.9rem;
        line-height: 1.4;
    }
    
    .resources-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .further-reading-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .week-card h3 {
        font-size: 1.2rem;
        margin-bottom: 0.8rem;
    }
    
    .week-card p {
        font-size: 0.9rem;
        line-height: 1.4;
        margin-bottom: 1rem;
    }
    
    .contact-info h3 {
        font-size: 1.5rem;
    }
    
    .contact-info p {
        font-size: 0.95rem;
    }
    
    .form-group input,
    .form-group textarea {
        font-size: 0.95rem;
        padding: 0.8rem;
    }
    
    .submit-btn {
        font-size: 0.95rem;
        padding: 0.8rem 1.25rem;
    }
    
    .nav-logo {
        font-size: 1.2rem;
    }
    
    .logo-icon {
        width: 28px;
        height: 28px;
    }
}

/* Additional mobile-specific improvements */
@media (max-width: 360px) {
    .container {
        padding: 0 4px;
    }
    
    .week-content .container {
        padding: 0 2px;
    }
    
    .executive-summary {
        padding: 1rem;
        margin: 0.6rem 0;
    }
    
    .key-insights {
        padding: 0.6rem;
        margin: 0.6rem 0;
    }
    
    .structure-grid,
    .assessment-grid,
    .perspectives-grid,
    .takeaways-grid {
        gap: 0.6rem;
    }
    
    .structure-category,
    .assessment-item,
    .perspective-item,
    .takeaway-item {
        padding: 0.6rem;
    }
    
    .hero-title {
        font-size: 1.9rem;
        line-height: 1.1;
        margin-bottom: 0.6rem;
        font-weight: 800;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        line-height: 1.2;
        margin-bottom: 0.6rem;
        font-weight: 600;
    }
    
    .section-title {
        font-size: 1.6rem;
        line-height: 1.05;
        margin-bottom: 0.2rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
        line-height: 1.15;
        margin-bottom: 0.6rem;
    }
    
    .overview-card,
    .week-card,
    .resource-card {
        padding: 1rem 0.8rem;
    }
    
    .hero-stats {
        flex-direction: row;
        gap: 0.6rem;
        margin-bottom: 1rem;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .stat {
        flex: 1;
        min-width: 0;
    }
    
    .stat-number {
        font-size: 1.2rem;
    }
    
    .stat-label {
        font-size: 0.65rem;
    }
}

/* Mobile touch improvements */
@media (max-width: 768px) {
    .cta-button,
    .week-link,
    .submit-btn,
    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .hamburger {
        min-height: 44px;
        min-width: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .form-group input,
    .form-group textarea {
        min-height: 44px;
    }
    
    /* Improve text selection on mobile */
    ::selection {
        background-color: #2563eb;
        color: white;
    }
    
    /* Better focus states for mobile */
    .cta-button:focus,
    .week-link:focus,
    .submit-btn:focus,
    .nav-link:focus {
        outline: 3px solid #2563eb;
        outline-offset: 2px;
    }
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
    .container {
        padding: 0 8px;
    }
    
    .nav-container {
        padding: 0 12px;
    }
    
    .hero-container {
        padding: 0 12px;
    }
    
    .overview-card ul {
        max-width: 100%;
    }
    
    .stat {
        min-width: 0;
        flex: 1;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .stat {
        min-width: 0;
        flex: 1;
    }
    
    .overview-card ul {
        max-width: 100%;
    }
}

@media (max-width: 360px) {
    .stat {
        min-width: 0;
        flex: 1;
    }
    
    .overview-card ul {
        max-width: 100%;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}


/* Loading animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.week-card,
.overview-card,
.resource-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Focus states for accessibility */
.cta-button:focus,
.week-link:focus,
.submit-btn:focus,
.nav-link:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* Additional styles for week pages */
.structure-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

/* Chapter Page Styles */
.main-container {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 24px;
    padding: 40px;
    margin-top: 100px; /* Reduced to clear fixed header */
    margin-bottom: 20px; /* Drastically reduced bottom margin */
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* Simple Chapter Header */
.chapter-title-section {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
    border-bottom: 2px solid #e2e8f0;
}

.chapter-badge {
    display: inline-block;
    background: #3b82f6;
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.chapter-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #1f2937;
    margin: 0 0 1rem;
    line-height: 1.2;
}

.chapter-description {
    font-size: 1.25rem;
    color: #6b7280;
    margin: 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}

/* Simple Chapter Header - Clean and Readable */
.chapter-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid #e2e8f0;
}

.chapter-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 0.5rem;
}

.chapter-header .subtitle {
    font-size: 1.1rem;
    color: #6b7280;
    margin: 0;
}

/* Breadcrumb Navigation */
.breadcrumb {
    background: #f8fafc;
    border-radius: 16px;
    padding: 16px 24px;
    margin-top: 150px; /* Significantly increased to clear fixed header */
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.breadcrumb a {
    color: #6b7280;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: #2563eb;
}

.breadcrumb-separator {
    color: #9ca3af;
}

.breadcrumb-current {
    color: #1f2937;
    font-weight: 600;
}

/* Content Sections */
.content-section {
    margin: 40px 0;
}

.content-section h2 {
    color: #1f2937;
    margin: 0 0 24px;
    font-size: 28px;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 16px;
}

.content-section h2::before {
    content: '📖';
    font-size: 32px;
}

.content-section h3 {
    color: #1f2937;
    margin: 32px 0 16px;
    font-size: 22px;
    font-weight: 700;
}

.content-section p {
    color: #6b7280;
    margin: 0 0 20px;
    font-size: 16px;
    line-height: 1.7;
}

.content-section p:last-child {
    margin-bottom: 0;
}

/* Key Themes Section */
.themes-section {
    background: #fef3c7;
    border: 2px solid #f59e0b;
    border-radius: 24px;
    padding: 16px; /* Reduced from 32px */
    margin: 20px 0; /* Reduced from 40px */
}

.themes-section h2 {
    color: #1f2937;
    margin: 0 0 16px; /* Reduced from 24px */
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.themes-section h2::before {
    content: '🎯';
    font-size: 28px;
}

.themes-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.themes-list li {
    color: #1f2937;
    margin: 0 0 12px; /* Reduced from 20px */
    padding: 12px; /* Reduced from 20px */
    background: white;
    border-radius: 12px; /* Reduced from 16px */
    border-left: 4px solid #06d6a0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.themes-list li:last-child {
    margin-bottom: 0;
}

.themes-list strong {
    color: #06d6a0;
    font-size: 18px;
    display: block;
    margin-bottom: 8px;
}

/* Highlight Box */
.highlight-box {
    background: #dbeafe;
    border: 2px solid #2563eb;
    border-radius: 24px;
    padding: 32px;
    margin: 40px 0;
}

.highlight-box h3 {
    color: #1f2937;
    margin: 0 0 16px;
    font-size: 20px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.highlight-box h3::before {
    content: '💡';
    font-size: 24px;
}

.highlight-box p {
    color: #1f2937;
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
}

/* Chapter Navigation */
.chapter-nav {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 24px;
    margin: 40px 0;
    text-align: center;
}

.chapter-nav h3 {
    color: #1f2937;
    margin: 0 0 16px;
    font-size: 18px;
    font-weight: 600;
}

.nav-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.nav-btn {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #60a5fa 100%);
    color: white;
    padding: 12px 24px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav-btn.secondary {
    background: transparent;
    color: #2563eb;
    border: 2px solid #2563eb;
}

.nav-btn.secondary:hover {
    background: #2563eb;
    color: white;
}

/* Progress Indicator */
.progress-indicator {
    background: #dcfce7;
    border: 2px solid #06d6a0;
    border-radius: 24px;
    padding: 24px;
    margin: 40px 0;
    text-align: center;
}

.progress-indicator h3 {
    color: #1f2937;
    margin: 0 0 16px;
    font-size: 18px;
    font-weight: 600;
}

.progress-bar {
    background: #e2e8f0;
    border-radius: 999px;
    height: 8px;
    margin: 16px 0;
    overflow: hidden;
}

.progress-fill {
    background: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #60a5fa 100%);
    height: 100%;
    width: 16.67%; /* Chapter 1 = 1/6 of course */
    border-radius: 999px;
    transition: width 0.3s ease;
}

.progress-text {
    color: #6b7280;
    font-size: 14px;
    font-weight: 500;
}

/* Mobile Responsiveness for Chapters */
@media (max-width: 768px) {
    .main-container { 
        padding: 6px; /* Minimal padding for mobile */
        margin-top: 80px; /* Ensure proper spacing from header */
        margin-left: 2px; /* Minimal margins for mobile */
        margin-right: 2px;
    }
    
    .chapter-header { 
        padding: 30px 20px; /* Reduced padding for mobile */
    }
    
    .nav-buttons { 
        flex-direction: column; 
        gap: 12px; /* Add gap between buttons */
    }
    
    .breadcrumb { 
        flex-direction: row; /* Keep on single line */
        align-items: center; 
        gap: 4px; /* Reduced gap for mobile */
        margin-top: 80px; /* Ensure proper spacing from header */
        padding: 8px 12px; /* Reduced padding for mobile */
        font-size: 12px; /* Smaller font for mobile */
        flex-wrap: nowrap; /* Prevent wrapping */
        overflow-x: auto; /* Allow horizontal scroll if needed */
    }
    
    .breadcrumb-separator {
        font-size: 10px; /* Smaller separators */
    }
    
    /* Improve content sections for mobile */
    .content-section {
        padding: 8px 0; /* Minimal padding */
    }
    
    .highlight-box {
        padding: 8px; /* Minimal padding for mobile */
        margin: 8px 0; /* Minimal margins */
    }
    
    /* Improve list spacing for mobile */
    .themes-list li {
        margin-bottom: 8px; /* Minimal spacing between list items */
        padding: 4px 0; /* Minimal padding */
    }
}

.structure-category {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.structure-category h4 {
    color: #1f2937;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.structure-category ul {
    list-style: none;
    padding: 0;
}

.structure-category li {
    padding: 0.25rem 0;
    color: #6b7280;
    position: relative;
    padding-left: 1rem;
}

.structure-category li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #2563eb;
}

.assessment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.assessment-item {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.assessment-item h5 {
    color: #1f2937;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.perspectives-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.perspective-item {
    background: #f0f9ff;
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #bae6fd;
}

.perspective-item h5 {
    color: #1e40af;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

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

.takeaway-item {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.takeaway-item h4 {
    color: #1f2937;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.takeaway-item p {
    color: #6b7280;
    margin: 0;
}

/* Executive Summary Styles */
.executive-summary {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid #cbd5e1;
    margin-bottom: 2rem;
}

.summary-content p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #374151;
    margin-bottom: 1.5rem;
}

.summary-content p:last-child {
    margin-bottom: 0;
}

.key-insights {
    background: white;
    border-radius: 10px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-left: 4px solid #2563eb;
}

.key-insights h4 {
    color: #1f2937;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.key-insights ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.key-insights li {
    padding: 0.75rem 0;
    color: #374151;
    position: relative;
    padding-left: 1.5rem;
    border-bottom: 1px solid #f3f4f6;
}

.key-insights li:last-child {
    border-bottom: none;
}

.key-insights li::before {
    content: "💡";
    position: absolute;
    left: 0;
    font-size: 1.1rem;
}

/* Print styles */
@media print {
    .header,
    .footer,
    .cta-button,
    .contact-form {
        display: none;
    }
    
    .hero {
        margin-top: 0;
        padding-top: 2rem;
    }
    
    body {
        background: white;
    }
}