/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Brand Colors */
    --pink: #ee4f9c;
    --green: #a0ce4e;
    --blue: #0093ac;
    --purple: #b27ab4;
    
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --gray: #e0e0e0;
    --dark-gray: #666666;
    --black: #333333;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

body {
    font-family: 'Candara', 'Calibri', 'Arial', sans-serif;
    font-weight: bold;
    line-height: 1.6;
    color: var(--black);
    background-color: #f0f2f5;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
    background-color: var(--white);
    min-height: 100vh;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

/* Navigation Header - Sticky and Dynamic */
.nav-header {
    background-color: var(--pink);
    color: var(--white);
    padding: var(--spacing-md);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: box-shadow 0.3s ease;
}

.back-btn {
    background-color: transparent;
    border: 2px solid var(--white);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.back-btn:hover {
    background-color: var(--white);
    color: var(--pink);
}

.site-title {
    flex: 1;
    text-align: center;
    font-size: 1.8rem;
    margin: 0;
}

/* Main Content */
main {
    min-height: calc(100vh - 80px);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: #fafbfc;
}

/* Page Visibility */
.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
    background-color: var(--white);
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    border: 1px solid #e3e6ea;
}

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

/* Typography */
h2 {
    color: var(--purple);
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
    margin-top: 0;
}

h3 {
    color: var(--blue);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    margin-top: 0;
}

p {
    margin-bottom: var(--spacing-sm);
    font-weight: normal;
    line-height: 1.5;
}

a {
    color: var(--pink);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: #d64487;
    text-decoration: underline;
}

/* Buttons */
.primary-btn, .secondary-btn, .choice-btn, .area-btn, .curriculum-btn {
    font-family: 'Candara', 'Calibri', 'Arial', sans-serif;
    font-weight: bold;
    font-size: 1.1rem;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    display: inline-block;
    width: 100%;
    margin-bottom: var(--spacing-sm);
}

.primary-btn {
    background-color: var(--green);
    color: var(--white);
}

.primary-btn:hover {
    background-color: #8fb93e;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.secondary-btn {
    background-color: var(--blue);
    color: var(--white);
    border: 2px solid var(--blue);
    box-shadow: 0 2px 4px rgba(0, 147, 172, 0.2);
}

.secondary-btn:hover {
    background-color: #007a8c;
    border-color: #007a8c;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 147, 172, 0.3);
}

.choice-btn {
    width: 200px;
    margin: 0 var(--spacing-sm);
}

.yes-btn {
    background-color: var(--green);
    color: var(--white);
}

.yes-btn:hover {
    background-color: #8fb93e;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.no-btn {
    background-color: var(--pink);
    color: var(--white);
}

.no-btn:hover {
    background-color: #d64487;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.area-btn {
    background-color: var(--purple);
    color: var(--white);
    margin-top: var(--spacing-sm);
}

.area-btn:hover {
    background-color: #9d6a9f;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.curriculum-btn {
    background-color: var(--blue);
    color: var(--white);
}

.curriculum-btn:hover {
    background-color: #007a8c;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.curriculum-item-btn {
    display: block;
    width: 100%;
    text-align: left;
    background-color: var(--white);
    color: var(--text-dark);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    border: 2px solid var(--blue);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    line-height: 1.6;
}

.curriculum-item-btn:hover {
    background-color: #f0f9fb;
    border-color: #007a8c;
    transform: translateX(5px);
}

.skill-link {
    display: inline-block;
    color: var(--blue);
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    margin: var(--spacing-xs);
    border: 1px solid var(--blue);
    border-radius: 20px;
    transition: all 0.3s ease;
    font-size: 14px;
}

.skill-link:hover {
    background-color: var(--blue);
    color: var(--white);
    transform: translateY(-2px);
}

.curriculum-categories h3,
.skills-categories h3 {
    color: var(--purple);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.curriculum-items,
.skills-list {
    margin-bottom: var(--spacing-lg);
}

.skills-section h4 {
    color: var(--green);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.jump-section {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: #f8f9fa;
    border-radius: 8px;
}

/* Level Cards and Content */
.level-selection {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.level-card {
    background: var(--white);
    border: 2px solid var(--green);
    border-radius: 12px;
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all 0.3s ease;
}

.level-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
    border-color: var(--purple);
}

.level-card h4 {
    color: var(--purple);
    margin-bottom: var(--spacing-xs);
}

.level-card .age-range {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
}

.level-card ul {
    list-style: disc;
    padding-left: 20px;
    margin-bottom: var(--spacing-sm);
}

.level-card li {
    font-size: 14px;
    margin-bottom: 4px;
}

.click-to-expand {
    color: var(--blue);
    font-weight: bold;
    text-align: center;
    margin-top: var(--spacing-sm);
}

.level-content {
    background: #f8f9fa;
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.level-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.collapse-btn {
    background: var(--purple);
    color: var(--white);
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.collapse-btn:hover {
    background: #9a6c9c;
}

.goal-box {
    background: var(--white);
    border-left: 4px solid var(--green);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    border-radius: 8px;
}

.rubric-section {
    margin: var(--spacing-md) 0;
}

.rubric-item {
    background: var(--white);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.rubric-item strong {
    color: var(--purple);
    display: block;
    margin-bottom: 4px;
}

.activities-section {
    margin-top: var(--spacing-lg);
}

.activity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.activity-btn {
    background: var(--blue);
    color: var(--white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.activity-btn:hover {
    background: #007a8c;
    color: var(--white);
    transform: translateY(-2px);
}

/* Layout Components */
.welcome-section {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #f8f4ff 0%, #fff0f8 100%);
    border-radius: 12px;
    border: 1px solid #e8e0f5;
}

.main-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.section-divider {
    border: none;
    border-top: 2px solid #e3e6ea;
    margin: var(--spacing-lg) 0;
}

.resource-section {
    background-color: #f8f9fa;
    padding: var(--spacing-md);
    border-radius: 12px;
    margin-bottom: var(--spacing-sm);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.resource-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    border-color: var(--purple);
}

.resource-section h3 {
    color: var(--purple);
}

.resource-thumbnail {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 8px;
    margin-bottom: var(--spacing-sm);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.resource-thumbnail:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.checklist-section {
    background-color: #ffffff;
    padding: var(--spacing-md);
    border-radius: 12px;
    margin-bottom: var(--spacing-md);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.checklist-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border-color: var(--blue);
}

.question-box {
    background: linear-gradient(135deg, #fff8e1 0%, #f3e5f5 100%);
    padding: var(--spacing-lg);
    border-radius: 12px;
    text-align: center;
    border: 2px solid #e1bee7;
    margin: var(--spacing-md) 0;
}

.button-group {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.area-selection {
    display: grid;
    gap: var(--spacing-sm);
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.area-card {
    background-color: #ffffff;
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.area-card:hover {
    border-color: var(--purple);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.area-card ul {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-md);
    font-weight: normal;
}

.area-card li {
    margin-bottom: var(--spacing-xs);
}

.curriculum-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.download-section {
    background-color: #f8f9fa;
    padding: var(--spacing-lg);
    border-radius: 12px;
    text-align: center;
    margin-top: var(--spacing-md);
    border: 1px solid #e9ecef;
}

/* Resource Grid for downloads */
.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    text-align: left;
}

.resource-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.resource-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.resource-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.resource-card p {
    color: #666;
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.resource-card .download-btn {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--green), #8fb93e);
    color: white;
    border: 2px solid var(--green);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(160, 206, 78, 0.3);
}

.resource-card .download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(160, 206, 78, 0.4);
    background: linear-gradient(135deg, #8fb93e, var(--green));
    border-color: #8fb93e;
}

/* Curriculum Levels */
.curriculum-levels {
    margin-top: 2rem;
}

.level-card {
    background-color: var(--white);
    border: 2px solid var(--medium-gray);
    border-radius: 10px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.level-card:hover {
    border-color: var(--blue);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.level-header {
    padding: 1.5rem;
    cursor: pointer;
}

.level-header h3 {
    color: var(--blue);
    margin-bottom: 0.5rem;
}

.age-range {
    color: var(--purple);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.skills-preview {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.skills-preview li {
    margin-bottom: 0.3rem;
    color: var(--text-color);
}

.level-btn {
    background-color: var(--green);
    color: var(--white);
    border: none;
    padding: 0.8rem 2rem;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.level-btn:hover {
    background-color: #8db33f;
}

.level-content {
    background-color: var(--light-gray);
    padding: 2rem;
    border-top: 2px solid var(--medium-gray);
}

.level-details {
    max-width: 900px;
    margin: 0 auto;
}

.sample-goal {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    margin: 1.5rem 0;
    border-left: 4px solid var(--purple);
}

.sample-goal h4 {
    color: var(--purple);
    margin-bottom: 0.5rem;
}

/* Rubric Table */
.rubric {
    margin: 1.5rem 0;
}

.rubric-table {
    width: 100%;
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.rubric-table thead {
    background-color: var(--blue);
    color: var(--white);
}

.rubric-table th {
    padding: 1rem;
    text-align: left;
    font-weight: bold;
}

.rubric-table tbody tr {
    border-bottom: 1px solid var(--medium-gray);
}

.rubric-table tbody tr:last-child {
    border-bottom: none;
}

.rubric-table td {
    padding: 1rem;
}

.rubric-table .score {
    font-weight: bold;
    color: var(--blue);
    white-space: nowrap;
    width: 150px;
}

/* Therapy Activities */
.therapy-activities {
    margin-top: 2rem;
}

.therapy-activities h4 {
    color: var(--green);
    margin-bottom: 0.5rem;
}

.therapy-activities p {
    margin-bottom: 1rem;
}

.activity-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.activity-btn {
    background-color: var(--pink);
    color: var(--white);
    border: none;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: bold;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.activity-btn:hover {
    background-color: #d64487;
    color: var(--white);
    transform: translateY(-1px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .site-title {
        font-size: 1.4rem;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
    
    .button-group {
        flex-direction: column;
        align-items: center;
    }
    
    .choice-btn {
        width: 100%;
        max-width: 300px;
        margin: var(--spacing-xs) 0;
    }
    
    .area-selection {
        grid-template-columns: 1fr;
    }
    
    .curriculum-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-header {
        padding: var(--spacing-sm);
    }
    
    .back-btn {
        padding: var(--spacing-xs);
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .site-title {
        font-size: 1.2rem;
    }
    
    h2 {
        font-size: 1.4rem;
    }
    
    h3 {
        font-size: 1.2rem;
    }
    
    .primary-btn, .secondary-btn, .area-btn {
        font-size: 1rem;
        padding: var(--spacing-sm);
    }
}

/* Print Styles */
@media print {
    .nav-header {
        position: static;
    }
    
    .back-btn {
        display: none;
    }
    
    .area-card {
        break-inside: avoid;
    }
}

/* Additional Styles for Curriculum Pages */
.level-selection {
    display: grid;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.level-card {
    background-color: #ffffff;
    padding: var(--spacing-md);
    border-radius: 12px;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.level-card:hover {
    border-color: var(--green);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.level-card h4 {
    color: var(--purple);
    margin-bottom: var(--spacing-xs);
}

.age-range {
    color: var(--dark-gray);
    font-size: 0.9rem;
    font-weight: normal;
    margin-bottom: var(--spacing-sm);
}

/* Expandable Sections */
.expandable-section {
    margin-bottom: var(--spacing-sm);
    border: 1px solid #e9ecef;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.expand-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: var(--spacing-md);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    border-bottom: 1px solid #e9ecef;
}

.expand-header:hover {
    background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 100%);
}

.expand-header.active {
    background: linear-gradient(135deg, var(--purple) 0%, #9c4dcc 100%);
    color: var(--white);
    border-bottom-color: var(--purple);
}

.expand-content {
    display: none;
    padding: var(--spacing-md);
    background-color: var(--white);
}

.expand-content.active {
    display: block;
}

/* Rubric Tables */
.rubric-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
}

.rubric-table th,
.rubric-table td {
    border: 1px solid var(--gray);
    padding: var(--spacing-sm);
    text-align: left;
}

.rubric-table th {
    background-color: var(--purple);
    color: var(--white);
    font-weight: bold;
}

.rubric-table tr:nth-child(even) {
    background-color: var(--light-gray);
}

/* Sample Goal Box */
.goal-box {
    background: linear-gradient(135deg, #e6f4ea 0%, #f0f8f0 100%);
    border: 2px solid var(--green);
    border-radius: 12px;
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    box-shadow: 0 2px 8px rgba(160, 206, 78, 0.15);
}

.goal-box h4 {
    color: var(--green);
    margin-bottom: var(--spacing-sm);
}

/* Activity Buttons */
.activity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.activity-btn {
    background-color: var(--blue);
    color: var(--white);
    padding: var(--spacing-sm);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.activity-btn:hover {
    background-color: #007a8c;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Responsive Design for Mobile */
@media (max-width: 768px) {
    .nav-header {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
    }

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

    .page {
        padding: 1rem;
    }

    .welcome-section h2 {
        font-size: 1.5rem;
    }

    .primary-btn {
        width: 100%;
        padding: 1.2rem 2rem;
        font-size: 1.1rem;
    }

    .button-group {
        flex-direction: column;
        gap: 1rem;
    }

    .choice-btn {
        width: 100%;
    }

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

    .area-card {
        padding: 1rem;
    }

    .area-card h3 {
        font-size: 1.2rem;
    }
    
    .rubric-table {
        font-size: 0.9rem;
    }
    
    .rubric-table .score {
        width: auto;
    }
    
    .activity-buttons {
        flex-direction: column;
    }
    
    .activity-btn {
        width: 100%;
    }
    
    .level-header {
        padding: 1rem;
    }
    
    .level-content {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .site-title {
        font-size: 1.2rem;
    }

    .welcome-section h2 {
        font-size: 1.3rem;
    }

    .primary-btn {
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }
    
    .rubric-table th,
    .rubric-table td {
        padding: 0.5rem;
        font-size: 0.8rem;
    }
}

/* Loading Indicator Styles */
.loading-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray);
    border-top: 4px solid var(--pink);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    margin-top: 1rem;
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--black);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Page transition optimization */
.page {
    will-change: transform;
    contain: layout style paint;
}

.page.active {
    animation: fadeIn 0.3s ease-in-out;
}

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

/* External Link and Skill Page Styles */
.external-link-section {
    background-color: #f8f9fa;
    border: 2px solid var(--blue);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.external-link-btn {
    background: linear-gradient(135deg, var(--blue) 0%, #007a8f 100%);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1rem;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.external-link-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 147, 172, 0.3);
    background: linear-gradient(135deg, #007a8f 0%, var(--blue) 100%);
}

.skill-category {
    color: var(--purple);
    font-weight: bold;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.skill-navigation {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 2px solid var(--gray);
}

.back-to-curriculum-btn {
    background-color: var(--gray);
    color: var(--black);
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

.back-to-curriculum-btn:hover {
    background-color: var(--dark-gray);
    color: var(--white);
}

.activity-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    margin: 1rem 0;
}

.activity-btn {
    background: linear-gradient(135deg, var(--pink) 0%, #d64487 100%);
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    font-size: 0.9rem;
    text-align: left;
    transition: all 0.3s ease;
}

.activity-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(238, 79, 156, 0.3);
    background: linear-gradient(135deg, #d64487 0%, var(--pink) 100%);
    color: var(--white);
}

.activity-btn.disabled,
.activity-btn:disabled {
    background: var(--gray);
    color: var(--dark-gray);
    cursor: not-allowed;
    opacity: 0.6;
}

.activity-btn.disabled:hover,
.activity-btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

.resource-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
    margin: 1rem 0;
}

.download-btn, .resource-btn {
    background: linear-gradient(135deg, var(--green) 0%, #8fb93e 100%);
    color: white;
    border: 2px solid var(--green);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    font-size: 0.9rem;
    text-align: left;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(160, 206, 78, 0.3);
}

.download-btn:hover, .resource-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(160, 206, 78, 0.4);
    background: linear-gradient(135deg, #8fb93e 0%, var(--green) 100%);
    border-color: #8fb93e;
}

.tracking-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
    margin: 1rem 0;
}

.tracking-btn {
    background: linear-gradient(135deg, var(--blue) 0%, #007a8c 100%);
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    font-size: 0.9rem;
    text-align: left;
    transition: all 0.3s ease;
}

.tracking-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 147, 172, 0.3);
    background: linear-gradient(135deg, #007a8c 0%, var(--blue) 100%);
}

.progress-tracking {
    background-color: #e6f4ea;
    border: 1px solid var(--green);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.progress-tracking h3 {
    color: var(--green);
    margin-top: 0;
    margin-bottom: 1rem;
}

.skill-intro {
    background-color: #f8f9fa;
    border-left: 4px solid var(--purple);
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-radius: 6px;
}

.download-notification {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* BT-8008: Loading states */
.loading-content, .curriculum-loading {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    color: var(--dark-gray);
    font-style: italic;
    position: relative;
    overflow: hidden;
}

.loading-content::after, .curriculum-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* BT-8008: Curriculum features grid */
.curriculum-features {
    background-color: #ffffff;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.curriculum-features h3 {
    color: var(--purple);
    margin-top: 0;
    margin-bottom: 1.5rem;
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.feature-item {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: var(--blue);
}

.feature-item h4 {
    color: var(--blue);
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
}

.feature-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--dark-gray);
    font-weight: normal;
}

@media (max-width: 768px) {
    .activity-buttons,
    .resource-buttons,
    .tracking-buttons {
        grid-template-columns: 1fr;
    }
    
    .activity-btn,
    .download-btn,
    .resource-btn,
    .tracking-btn {
        text-align: center;
    }
}

/* Search Feature Styles - Using Existing SLK Design Patterns */

/* Search Wrapper in Header */
.search-wrapper {
    position: relative;
    flex: 0 0 300px;
    margin: 0 var(--spacing-md);
}

.search-input {
    font-family: 'Candara', 'Calibri', 'Arial', sans-serif;
    font-weight: bold;
    width: 100%;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 2px solid var(--white);
    border-radius: 5px;
    font-size: 0.9rem;
    background-color: var(--white);
    color: var(--black);
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.search-input:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(0, 147, 172, 0.1), 0 0 8px rgba(0, 147, 172, 0.2);
    transform: translateY(-1px);
}

.search-input:focus:not(:placeholder-shown) {
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(160, 206, 78, 0.1), 0 0 8px rgba(160, 206, 78, 0.2);
}

.search-input::placeholder {
    color: var(--dark-gray);
    font-weight: normal;
}

.clear-search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    font-size: 1.2rem;
    color: var(--dark-gray);
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.clear-search-btn:hover {
    background-color: var(--gray);
    color: var(--black);
}

/* Search Results Dropdown - Enhanced with smooth scrolling and animations */
.search-results {
    position: absolute;
    top: calc(100% + 5px);
    left: 0;
    right: 0;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--gray);
    max-height: 400px;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 1000;
    backdrop-filter: blur(10px);
    /* Smooth scrolling */
    scroll-behavior: smooth;
    /* Custom scrollbar */
    scrollbar-width: thin;
    scrollbar-color: var(--blue) var(--light-gray);
    /* Smooth appearance animation */
    opacity: 0;
    transform: translateY(-10px) scale(0.98);
    animation: searchDropdownAppear 0.2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes searchDropdownAppear {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Webkit scrollbar styles */
.search-results::-webkit-scrollbar {
    width: 6px;
}

.search-results::-webkit-scrollbar-track {
    background: var(--light-gray);
    border-radius: 3px;
}

.search-results::-webkit-scrollbar-thumb {
    background: var(--blue);
    border-radius: 3px;
}

.search-results::-webkit-scrollbar-thumb:hover {
    background: #007a8c;
}

.search-results-header {
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--light-gray);
    border-bottom: 1px solid var(--gray);
    font-size: 0.85rem;
    color: var(--dark-gray);
    font-weight: normal;
}

.search-results-list {
    padding: 0;
}

/* Search Section Headers */
.search-section-header {
    background: linear-gradient(135deg, var(--light-gray) 0%, #e8e9ea 100%);
    border-bottom: 2px solid var(--gray);
    padding: var(--spacing-xs) var(--spacing-sm);
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(5px);
}

.search-section-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--dark-gray);
}

.search-section-icon {
    font-size: 1rem;
    opacity: 0.8;
}

.search-section-title {
    flex: 1;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--black);
}

.search-section-count {
    background: var(--blue);
    color: var(--white);
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 12px;
    min-width: 20px;
    text-align: center;
}

.search-result-item {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--light-gray);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    position: relative;
    border-left: 3px solid transparent;
}

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

.search-result-item:hover {
    background: linear-gradient(135deg, #f0f9fb 0%, #f8fcfd 100%);
    transform: translateX(2px);
    border-left-color: var(--blue);
    box-shadow: 0 2px 12px rgba(0, 147, 172, 0.08);
}

.search-result-item.selected {
    background: linear-gradient(135deg, #e6f3f8 0%, #f0f9fb 100%);
    transform: translateX(4px);
    border-left-color: var(--blue);
    box-shadow: 0 4px 16px rgba(0, 147, 172, 0.12);
}

.search-result-item:active {
    transform: translateX(1px) translateY(1px);
    transition: all 0.1s ease;
}

.search-result-content {
    flex: 1;
}

.search-result-title {
    font-weight: bold;
    font-size: 1rem;
    color: var(--black);
    margin-bottom: 2px;
    line-height: 1.3;
}

.search-result-description {
    font-size: 0.85rem;
    color: var(--dark-gray);
    font-weight: normal;
    line-height: 1.3;
    margin-bottom: 4px;
}

.search-result-type {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: bold;
    padding: 2px 8px;
    border-radius: 12px;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.search-result-type.curriculum {
    background-color: var(--purple);
}

.search-result-type.skill {
    background-color: var(--green);
}

.search-result-type.page {
    background-color: var(--blue);
}

/* Search highlight for matching terms */
.search-highlight {
    background-color: #fff3cd;
    padding: 1px 2px;
    border-radius: 2px;
    font-weight: bold;
}

/* No results message */
.search-no-results {
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--dark-gray);
    font-style: italic;
}

/* Mobile responsive adjustments for search */
@media (max-width: 768px) {
    .search-wrapper {
        flex: 1;
        margin: 0 var(--spacing-sm);
        min-width: 0;
    }
    
    .search-input {
        font-size: 0.85rem;
        padding: var(--spacing-xs);
    }
    
    .search-input::placeholder {
        font-size: 0.8rem;
    }
    
    .search-results {
        left: var(--spacing-sm);
        right: var(--spacing-sm);
        margin-left: calc(-1 * var(--spacing-sm));
        margin-right: calc(-1 * var(--spacing-sm));
    }
    
    .search-result-item {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .search-result-title {
        font-size: 0.9rem;
    }
    
    .search-result-description {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .nav-header {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    .search-wrapper {
        order: 3;
        flex: 1 1 100%;
        margin: var(--spacing-xs) 0 0 0;
    }
    
    .site-title {
        order: 2;
        flex: 1;
        font-size: 1.4rem;
    }
    
    .back-btn {
        order: 1;
    }
}

/* Dynamic Skill Page Styles */
.skill-page {
    max-width: 800px;
    margin: 0 auto;
}

.skill-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--gray);
}

.skill-header h2 {
    color: var(--purple);
    margin-bottom: var(--spacing-sm);
}

.skill-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    align-items: center;
}

.skill-category {
    background: var(--green);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: bold;
}

.skill-type-badge {
    background: var(--blue);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.skill-description {
    background: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid var(--blue);
}

.skill-description p {
    margin: 0;
    font-style: italic;
    color: var(--dark-gray);
}

.skill-content {
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.skill-content h3, .skill-content h4 {
    color: var(--purple);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.skill-content ul, .skill-content ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.skill-content li {
    margin-bottom: var(--spacing-xs);
}

.skill-resources {
    background: linear-gradient(135deg, #f0f9fb 0%, #e6f3f8 100%);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--blue);
}

.skill-resources h3 {
    color: var(--blue);
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
}

.skill-navigation {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray);
}

.back-to-search-btn {
    background: var(--gray);
    color: var(--black);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.back-to-search-btn:hover {
    background: var(--dark-gray);
    color: var(--white);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .skill-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .skill-page {
        margin: 0;
    }
}