/* ==========================================================================
   Aprendizagem Motora Aplicada - Styles
   Prof. Fabio Sampaio
   ========================================================================== */

/* Variables */
:root {
    /* Primary Colors - Educational Blue & Green */
    --primary-blue: #2563eb;
    --primary-blue-light: #3b82f6;
    --primary-blue-dark: #1d4ed8;
    --secondary-green: #059669;
    --secondary-green-light: #10b981;
    --secondary-green-dark: #047857;
    
    /* Accent Colors */
    --accent-orange: #ea580c;
    --accent-purple: #7c3aed;
    --accent-teal: #0d9488;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Status Colors */
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Merriweather', Georgia, serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Container Widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1536px;
}

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

html {
    font-size: 16px;
    line-height: 1.5;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-weight: 400;
    color: var(--gray-800);
    background-color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--gray-700);
}

.lead-paragraph {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
}

/* Links */
a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--primary-blue-dark);
    text-decoration: underline;
}

/* Lists */
ul, ol {
    margin-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

li {
    margin-bottom: var(--spacing-xs);
    color: var(--gray-700);
}

/* Container */
.container {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 0.875rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-light));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-blue-dark), var(--primary-blue));
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: var(--white);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
}

.btn-success {
    background: linear-gradient(135deg, var(--secondary-green), var(--secondary-green-light));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--secondary-green-dark), var(--secondary-green));
    transform: translateY(-1px);
    text-decoration: none;
    color: var(--white);
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition-fast);
}

.navbar {
    padding: 0;
}

.nav-container {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--primary-blue);
}

.brand-icon {
    font-size: 1.5rem;
    color: var(--secondary-green);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
    margin: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--gray-700);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    background: var(--gray-100);
    color: var(--primary-blue);
    text-decoration: none;
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    cursor: pointer;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-fast);
    z-index: 100;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    color: var(--gray-700);
    transition: var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--gray-50);
    color: var(--primary-blue);
    text-decoration: none;
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.bar {
    width: 24px;
    height: 3px;
    background: var(--gray-700);
    transition: var(--transition-fast);
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 4rem;
        left: -100%;
        width: 100%;
        height: calc(100vh - 4rem);
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: var(--spacing-xl);
        gap: var(--spacing-md);
        transition: var(--transition-normal);
        border-top: 1px solid var(--gray-200);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        margin-left: var(--spacing-lg);
    }
}

/* Progress Bar */
.progress-container {
    position: fixed;
    top: 4rem;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gray-200);
    z-index: 999;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-green));
    width: 0;
    transition: width 0.3s ease;
}

/* Main Content */
.main-content {
    margin-top: 4rem;
}

/* Section Styles */
.section {
    padding: var(--spacing-3xl) 0;
}

.section:nth-child(even) {
    background: var(--gray-50);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-green));
    border-radius: 2px;
}

.section-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: var(--spacing-3xl) 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%232563eb' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
}

.hero-container {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.title-highlight {
    display: block;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-subtitle {
    display: block;
    font-size: 2rem;
    font-weight: 400;
    color: var(--gray-700);
    margin-top: var(--spacing-sm);
}

.hero-description {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-meta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.author-info,
.institution-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--gray-600);
}

.author-info i,
.institution-info i {
    color: var(--primary-blue);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-animation {
    position: relative;
    width: 200px;
    height: 200px;
}

.movement-icon {
    position: absolute;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-green));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    animation: float 3s ease-in-out infinite;
}

.movement-icon.running {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 0s;
}

.movement-icon.swimming {
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    animation-delay: 0.75s;
}

.movement-icon.sports {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 1.5s;
}

.movement-icon.jumping {
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    animation-delay: 2.25s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(10px, -10px) rotate(120deg); }
    66% { transform: translate(-5px, 5px) rotate(240deg); }
}

@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .title-subtitle {
        font-size: 1.5rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
}

/* Overview Section */
.overview {
    padding: var(--spacing-3xl) 0;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.overview-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.overview-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-green));
}

.overview-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-green));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.card-description {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.card-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.feature-tag {
    background: var(--gray-100);
    color: var(--gray-700);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

/* Models Section */
.models-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.model-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: var(--transition-normal);
}

.model-card:hover {
    box-shadow: var(--shadow-lg);
}

.model-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    cursor: pointer;
}

.model-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-green));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    margin-right: var(--spacing-lg);
}

.model-info {
    flex: 1;
}

.model-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.model-subtitle {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.model-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--gray-500);
    cursor: pointer;
    transition: var(--transition-fast);
}

.model-toggle:hover {
    color: var(--primary-blue);
}

.model-content {
    padding: var(--spacing-lg);
    display: none;
}

.model-content.active {
    display: block;
    animation: slideDown 0.3s ease;
}

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

.model-phases,
.learning-stages {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.phase-item,
.stage-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-blue);
}

.phase-number {
    width: 30px;
    height: 30px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.phase-info h4,
.stage-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.phase-info p,
.stage-info p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
}

.stage-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1rem;
    flex-shrink: 0;
}

.stage-item.cognitive .stage-icon {
    background: var(--accent-orange);
}

.stage-item.associative .stage-icon {
    background: var(--primary-blue);
}

.stage-item.autonomous .stage-icon {
    background: var(--secondary-green);
}

.stage-info ul {
    margin-left: 0;
    margin-top: var(--spacing-sm);
    list-style: none;
}

.stage-info li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--gray-600);
}

.stage-info li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

/* Constraints Diagram */
.constraints-diagram {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.constraint-item {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    text-align: center;
}

.constraint-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-green));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    margin: 0 auto var(--spacing-md);
}

.constraint-item h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.constraint-item p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
}

.constraint-item ul {
    list-style: none;
    margin: 0;
    text-align: left;
}

.constraint-item li {
    font-size: 0.75rem;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--gray-200);
}

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

.constraint-intersection {
    display: flex;
    align-items: center;
    justify-content: center;
}

.intersection-circle {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-teal));
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    text-align: center;
}

.intersection-circle p {
    font-size: 0.75rem;
    margin: 0;
    font-weight: 500;
}

@media (max-width: 768px) {
    .constraints-diagram {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.model-relevance {
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--primary-blue);
}

.model-relevance h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-blue);
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.model-relevance p {
    font-size: 0.875rem;
    color: var(--gray-700);
    margin: 0;
    line-height: 1.6;
}

/* Tables */
.comparison-table-container,
.synthesis-table-container {
    margin-top: var(--spacing-3xl);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.table-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
}

.table-responsive {
    overflow-x: auto;
}

.comparison-table,
.synthesis-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.comparison-table th,
.synthesis-table th {
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--primary-blue-dark);
}

.comparison-table td,
.synthesis-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
    vertical-align: top;
}

.comparison-table tr:hover,
.synthesis-table tr:hover {
    background: var(--gray-50);
}

.comparison-table td:first-child,
.synthesis-table td:first-child {
    font-weight: 600;
    color: var(--primary-blue);
}

/* Phase and Stage Tags */
.phase-tag,
.stage-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.phase-tag.especializada {
    background: var(--primary-blue);
    color: var(--white);
}

.phase-tag.compensacao {
    background: var(--accent-purple);
    color: var(--white);
}

.stage-tag.cognitivo {
    background: var(--accent-orange);
    color: var(--white);
}

.stage-tag.associativo {
    background: var(--primary-blue);
    color: var(--white);
}

.stage-tag.autonomo {
    background: var(--secondary-green);
    color: var(--white);
}

/* Cases Section */
.cases-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.case-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: var(--transition-normal);
}

.case-card:hover {
    box-shadow: var(--shadow-lg);
}

.case-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    border-bottom: 1px solid var(--gray-200);
    cursor: pointer;
}

.case-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--secondary-green), var(--accent-teal));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    margin-right: var(--spacing-lg);
}

.case-info {
    flex: 1;
}

.case-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xs);
}

.case-subtitle {
    font-size: 0.875rem;
    color: var(--secondary-green);
    font-weight: 500;
}

.case-toggle {
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

.case-toggle:hover {
    border-color: var(--secondary-green);
    color: var(--secondary-green);
}

.case-content {
    padding: var(--spacing-lg);
    display: none;
}

.case-content.active {
    display: block;
    animation: slideDown 0.3s ease;
}

.case-analysis {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.analysis-section {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--secondary-green);
}

.analysis-section h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--secondary-green);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.analysis-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.analysis-item strong {
    font-size: 0.875rem;
    color: var(--gray-900);
}

.analysis-description {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--gray-700);
}

.strategies-section {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
}

.strategies-section h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-blue);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}

.strategy-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-blue);
}

.strategy-item:last-child {
    margin-bottom: 0;
}

.strategy-number {
    width: 30px;
    height: 30px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.strategy-content h5 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.strategy-content p {
    font-size: 0.875rem;
    color: var(--gray-700);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.strategy-example {
    background: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--secondary-green);
    font-size: 0.75rem;
}

.strategy-example strong {
    color: var(--secondary-green);
}

.case-objectives {
    background: linear-gradient(135deg, #f0fdf4, #ecfdf5);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--secondary-green);
}

.case-objectives h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--secondary-green);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.case-objectives ul {
    margin: 0;
    list-style: none;
}

.case-objectives li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--gray-700);
}

.case-objectives li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-green);
    font-weight: bold;
}

/* Strategies Section */
.strategies-overview {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
    margin-top: var(--spacing-2xl);
}

.strategy-category {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-green));
    color: var(--white);
}

.category-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.category-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

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

.strategy-item-detailed {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    transition: var(--transition-normal);
}

.strategy-item-detailed:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.strategy-item-detailed .strategy-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-green));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.strategy-item-detailed h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.strategy-item-detailed p {
    font-size: 0.875rem;
    color: var(--gray-700);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.strategy-applications {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.application-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--white);
}

.application-tag.judô {
    background: var(--accent-orange);
}

.application-tag.salto {
    background: var(--primary-blue);
}

.application-tag.natacao {
    background: var(--accent-teal);
}

.application-tag.tenis {
    background: var(--accent-purple);
}

.best-for {
    font-size: 0.75rem;
    color: var(--gray-600);
    font-style: italic;
}

/* Decision Framework */
.decision-framework {
    margin-top: var(--spacing-3xl);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--gray-200);
}

.framework-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xl);
    text-align: center;
    justify-content: center;
}

.decision-flow {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
}

.decision-step {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    width: 100%;
    max-width: 800px;
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.step-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-green));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.step-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.option {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--gray-300);
    font-size: 0.875rem;
    color: var(--gray-700);
    transition: var(--transition-fast);
}

.option.fundamental {
    border-left-color: var(--accent-orange);
}

.option.transicional {
    border-left-color: var(--primary-blue);
}

.option.aplicacao {
    border-left-color: var(--secondary-green);
}

.option.compensacao {
    border-left-color: var(--accent-purple);
}

.option.cognitivo {
    border-left-color: var(--accent-orange);
}

.option.associativo {
    border-left-color: var(--primary-blue);
}

.option.autonomo {
    border-left-color: var(--secondary-green);
}

.option.individuo {
    border-left-color: var(--primary-blue);
}

.option.tarefa {
    border-left-color: var(--secondary-green);
}

.option.ambiente {
    border-left-color: var(--accent-teal);
}

.step-result {
    margin-top: var(--spacing-md);
}

.result-box {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    border-radius: var(--radius-md);
    border: 1px solid var(--primary-blue);
    font-size: 0.875rem;
    color: var(--gray-700);
    line-height: 1.6;
}

.decision-arrow {
    color: var(--primary-blue);
    font-size: 2rem;
    margin: var(--spacing-md) 0;
}

@media (max-width: 768px) {
    .decision-step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        align-self: center;
    }
}

/* Resources Section */
.resources-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

.subsection-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--primary-blue);
}

.references-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.reference-item {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
}

.reference-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.reference-item.desenvolvimento::before {
    background: var(--primary-blue);
}

.reference-item.aprendizagem::before {
    background: var(--secondary-green);
}

.reference-item.adaptado::before {
    background: var(--accent-teal);
}

.reference-item.paralisia::before {
    background: var(--accent-purple);
}

.reference-item.judo::before {
    background: var(--accent-orange);
}

.reference-item.tecnologia::before {
    background: var(--info);
}

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

.ref-category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.ref-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.ref-description {
    font-size: 0.875rem;
    color: var(--gray-700);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.ref-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-blue);
    transition: var(--transition-fast);
}

.ref-link:hover {
    color: var(--primary-blue-dark);
    text-decoration: none;
}

/* Supplementary Materials */
.supplementary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.supplement-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    transition: var(--transition-normal);
}

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

.supplement-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--secondary-green), var(--accent-teal));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.supplement-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-md);
}

.supplement-list {
    list-style: none;
    margin: 0;
}

.supplement-list li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--gray-200);
}

.supplement-list li:last-child {
    border-bottom: none;
}

.supplement-list a {
    font-size: 0.875rem;
    color: var(--gray-700);
    transition: var(--transition-fast);
}

.supplement-list a:hover {
    color: var(--primary-blue);
    text-decoration: none;
}

/* Glossary */
.glossary-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.glossary-item {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    border-left: 4px solid var(--primary-blue);
}

.glossary-item dt {
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.glossary-item dd {
    font-size: 0.875rem;
    color: var(--gray-700);
    line-height: 1.6;
    margin: 0;
}

/* Quiz Section */
.quiz-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-green));
    color: var(--white);
}

.progress-info {
    font-size: 1.125rem;
    font-weight: 600;
}

.progress-bar-quiz {
    width: 200px;
    height: 8px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    overflow: hidden;
    margin-top: var(--spacing-xs);
}

.progress-fill {
    height: 100%;
    background: var(--white);
    transition: width 0.3s ease;
    border-radius: 4px;
}

.quiz-score {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.125rem;
    font-weight: 600;
}

.quiz-content {
    padding: var(--spacing-xl);
}

.question-container {
    display: none;
}

.question-container.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.question-number {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--primary-blue);
    color: var(--white);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
}

.question-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-xl);
    line-height: 1.4;
}

.options-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.option {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-fast);
}

.option:hover {
    border-color: var(--primary-blue);
    background: var(--gray-50);
}

.option.selected {
    border-color: var(--primary-blue);
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
}

.option.correct {
    border-color: var(--success);
    background: linear-gradient(135deg, #f0fdf4, #ecfdf5);
}

.option.incorrect {
    border-color: var(--danger);
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
}

.option-letter {
    width: 30px;
    height: 30px;
    background: var(--gray-200);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--gray-700);
    flex-shrink: 0;
}

.option.selected .option-letter {
    background: var(--primary-blue);
    color: var(--white);
}

.option.correct .option-letter {
    background: var(--success);
    color: var(--white);
}

.option.incorrect .option-letter {
    background: var(--danger);
    color: var(--white);
}

.option-text {
    font-size: 1rem;
    color: var(--gray-800);
    line-height: 1.5;
}

.question-explanation {
    background: linear-gradient(135deg, #fefce8, #fef3c7);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--warning);
    margin-bottom: var(--spacing-xl);
}

.question-explanation strong {
    color: var(--warning);
}

.quiz-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
}

/* Quiz Results */
.quiz-results {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    text-align: center;
}

.results-header {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--success), var(--secondary-green));
    color: var(--white);
}

.results-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto var(--spacing-md);
}

.results-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin: 0;
}

.results-score {
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.score-circle {
    position: relative;
    width: 120px;
    height: 120px;
    border: 8px solid var(--gray-200);
    border-top: 8px solid var(--success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: spin 1s ease-in-out;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.score-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--success);
}

.score-total {
    font-size: 1.5rem;
    color: var(--gray-500);
}

.score-percentage {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-700);
}

.results-feedback {
    padding: 0 var(--spacing-xl) var(--spacing-xl);
}

.results-feedback h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.results-feedback p {
    color: var(--gray-700);
    line-height: 1.6;
}

.results-breakdown {
    padding: 0 var(--spacing-xl) var(--spacing-xl);
    text-align: left;
}

.results-breakdown h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--gray-200);
}

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

.topic {
    font-size: 0.875rem;
    color: var(--gray-700);
}

.topic-score {
    font-weight: 600;
    color: var(--success);
}

.results-actions {
    padding: var(--spacing-xl);
    background: var(--gray-50);
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Conclusion Section */
.conclusion-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

.conclusion-text {
    max-width: 800px;
    margin: 0 auto;
}

.key-insights {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin: var(--spacing-xl) 0;
}

.key-insights h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-blue);
    margin-bottom: var(--spacing-lg);
}

.insight-item {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-blue);
}

.insight-item:last-child {
    margin-bottom: 0;
}

.insight-number {
    width: 40px;
    height: 40px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.insight-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.insight-content p {
    font-size: 0.875rem;
    color: var(--gray-700);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.insight-content ul {
    margin-left: 0;
    list-style: none;
}

.insight-content li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--gray-700);
}

.insight-content li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

.final-message {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    border-radius: var(--radius-lg);
    border: 1px solid var(--primary-blue);
    margin: var(--spacing-xl) 0;
}

.message-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.message-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.message-content p {
    font-size: 0.875rem;
    color: var(--gray-700);
    line-height: 1.6;
    margin: 0;
}

.practical-implications {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.practical-implications h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--secondary-green);
    margin-bottom: var(--spacing-lg);
}

.implication-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.implication-card {
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    text-align: center;
    transition: var(--transition-normal);
}

.implication-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.implication-card .card-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--secondary-green), var(--accent-teal));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    margin: 0 auto var(--spacing-md);
}

.implication-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
}

.implication-card p {
    font-size: 0.875rem;
    color: var(--gray-700);
    line-height: 1.6;
    margin: 0;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.footer-title {
    color: var(--white);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.footer-description {
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    color: var(--gray-400);
}

.footer-author {
    font-size: 0.875rem;
    color: var(--gray-300);
    line-height: 1.5;
}

.footer-links {
    list-style: none;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-blue);
    text-decoration: none;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--gray-400);
}

.contact-item i {
    color: var(--primary-blue);
    width: 16px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-700);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.footer-specializations {
    font-size: 0.875rem;
    color: var(--gray-400);
}

@media (max-width: 768px) {
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-green));
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Responsive Design */
@media (max-width: 1024px) {
    :root {
        --spacing-3xl: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .title-subtitle {
        font-size: 1.75rem;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-3xl: 2rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .section {
        padding: var(--spacing-2xl) 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero {
        min-height: 60vh;
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .title-subtitle {
        font-size: 1.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
    }
    
    .strategy-grid {
        grid-template-columns: 1fr;
    }
    
    .references-grid {
        grid-template-columns: 1fr;
    }
    
    .supplementary-grid {
        grid-template-columns: 1fr;
    }
    
    .implication-cards {
        grid-template-columns: 1fr;
    }
    
    .quiz-navigation {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .results-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .title-subtitle {
        font-size: 1.25rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .hero-meta {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Print Styles */
@media print {
    .header,
    .nav-toggle,
    .back-to-top,
    .quiz-navigation,
    .hero-actions {
        display: none !important;
    }
    
    .main-content {
        margin-top: 0;
    }
    
    .section {
        page-break-inside: avoid;
        padding: 1rem 0;
    }
    
    .case-card,
    .model-card {
        page-break-inside: avoid;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    h1 { font-size: 18pt; }
    h2 { font-size: 16pt; }
    h3 { font-size: 14pt; }
    h4 { font-size: 12pt; }
}

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

/* Focus States */
.btn:focus,
.nav-link:focus,
.option:focus,
.case-toggle:focus,
.model-toggle:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --gray-50: #ffffff;
        --gray-100: #f5f5f5;
        --gray-900: #000000;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --white: #1a1a1a;
        --gray-50: #2a2a2a;
        --gray-100: #3a3a3a;
        --gray-900: #ffffff;
        --gray-800: #f5f5f5;
        --gray-700: #e5e5e5;
    }
}