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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #ffffff;
}

/* Variáveis CSS */
:root {
    /* Cores Principais - Esportivas e Alegres */
    --primary-color: #ff6b35;
    --secondary-color: #2196f3;
    --accent-color: #4caf50;
    --warning-color: #ff9800;
    --purple-color: #9c27b0;
    
    /* Cores de Suporte */
    --dark-color: #1a1a1a;
    --gray-color: #666;
    --light-gray: #f5f5f5;
    --white: #ffffff;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    --gradient-secondary: linear-gradient(135deg, #2196f3 0%, #21cbf3 100%);
    --gradient-accent: linear-gradient(135deg, #4caf50 0%, #8bc34a 100%);
    --gradient-purple: linear-gradient(135deg, #9c27b0 0%, #e91e63 100%);
    
    /* Sombras */
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 5px 20px rgba(0,0,0,0.15);
    --shadow-heavy: 0 10px 30px rgba(0,0,0,0.2);
    
    /* Transições */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-slow: 0.7s ease;
    
    /* Bordas */
    --border-radius: 12px;
    --border-radius-large: 20px;
}

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

/* Navegação */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-light);
    z-index: 1000;
    transition: var(--transition-fast);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-medium);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo i {
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
    background: rgba(255, 107, 53, 0.1);
    transform: translateY(-2px);
}

.nav-link.active {
    color: var(--primary-color);
    background: rgba(255, 107, 53, 0.15);
}

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

.nav-toggle .bar {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    margin: 3px 0;
    transition: var(--transition-fast);
    border-radius: 3px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, 
        rgba(255, 107, 53, 0.1) 0%, 
        rgba(33, 150, 243, 0.1) 50%, 
        rgba(76, 175, 80, 0.1) 100%);
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><circle fill="%23ff6b35" fill-opacity="0.05" cx="30" cy="30" r="2"/></g></svg>');
    z-index: -1;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--gray-color);
    margin-bottom: 2rem;
    line-height: 1.4;
}

.professor-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    margin-bottom: 2rem;
    border-left: 4px solid var(--primary-color);
}

.professor-info i {
    font-size: 2.5rem;
    color: var(--secondary-color);
}

.professor-info h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.professor-info p {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 400px;
}

.floating-elements {
    position: relative;
    width: 100%;
    height: 100%;
}

.float-element {
    position: absolute;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    animation: float 6s ease-in-out infinite;
    box-shadow: var(--shadow-medium);
}

.float-element:nth-child(1) {
    top: 20%;
    left: 10%;
    background: var(--gradient-primary);
    animation-delay: -0s;
}

.float-element:nth-child(2) {
    top: 10%;
    right: 20%;
    background: var(--gradient-secondary);
    animation-delay: -2s;
}

.float-element:nth-child(3) {
    bottom: 30%;
    left: 20%;
    background: var(--gradient-accent);
    animation-delay: -4s;
}

.float-element:nth-child(4) {
    bottom: 10%;
    right: 10%;
    background: var(--gradient-purple);
    animation-delay: -1s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(10deg);
    }
}

/* Sections Base */
section {
    padding: 5rem 0;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.section-title i {
    color: var(--primary-color);
}

.section-subtitle {
    text-align: center;
    color: var(--gray-color);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Objectives Section */
.objectives {
    background: var(--light-gray);
}

.objectives-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.objective-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-large);
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: var(--transition-fast);
    border-top: 4px solid var(--primary-color);
}

.objective-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.objective-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
}

.objective-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.objective-card p {
    color: var(--gray-color);
    line-height: 1.6;
}

/* Concepts Section */
.concepts {
    background: var(--white);
}

.concept-tabs {
    max-width: 1000px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 500;
    color: var(--gray-color);
}

.tab-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.tab-btn.active {
    background: var(--gradient-primary);
    border-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

.concept-card {
    background: var(--white);
    border-radius: var(--border-radius-large);
    padding: 3rem;
    box-shadow: var(--shadow-light);
    border: 1px solid #eee;
}

.concept-card h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.concept-card h3 i {
    color: var(--primary-color);
}

.concept-definition {
    font-size: 1.2rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(255, 107, 53, 0.05);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

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

.detail-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.detail-item i {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-top: 0.25rem;
}

.detail-item h4 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.detail-item p {
    color: var(--gray-color);
    font-size: 0.9rem;
}

/* Learning Phases */
.learning-phases {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.phase-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    flex: 1;
}

.phase-number {
    width: 40px;
    height: 40px;
    background: var(--gradient-secondary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.phase-content h4 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.phase-content p {
    color: var(--gray-color);
    font-size: 0.9rem;
}

/* Control Systems */
.control-systems {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.system-card {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    border-top: 4px solid var(--accent-color);
}

.system-card i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.system-card h4 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.system-card p {
    color: var(--gray-color);
    font-size: 0.9rem;
}

/* Repertoire Examples */
.repertoire-examples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.example-category {
    padding: 2rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.example-category h4 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.example-category h4 i {
    color: var(--purple-color);
}

.example-category ul {
    list-style: none;
}

.example-category li {
    padding: 0.75rem 0;
    color: var(--gray-color);
    border-bottom: 1px solid #ddd;
}

.example-category li:last-child {
    border-bottom: none;
}

/* Stages Section */
.stages {
    background: var(--light-gray);
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 2rem;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: var(--shadow-medium);
}

.timeline-marker i {
    font-size: 1.5rem;
    color: var(--white);
}

.timeline-content {
    width: 45%;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
}

.stage-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    position: relative;
}

.stage-card::before {
    content: '';
    position: absolute;
    top: 2rem;
    width: 0;
    height: 0;
    border: 15px solid transparent;
}

.timeline-item:nth-child(odd) .stage-card::before {
    right: -30px;
    border-left-color: var(--white);
}

.timeline-item:nth-child(even) .stage-card::before {
    left: -30px;
    border-right-color: var(--white);
}

.stage-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.stage-description p {
    margin-bottom: 1.5rem;
    color: var(--gray-color);
}

.stage-skills {
    margin-bottom: 1.5rem;
}

.skill-group h4 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.skill-group ul {
    list-style: none;
}

.skill-group li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--gray-color);
}

.skill-group li i {
    color: var(--secondary-color);
    width: 16px;
}

.example-box {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(255, 107, 53, 0.05);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.example-box i {
    color: var(--warning-color);
    font-size: 1.2rem;
    margin-top: 0.25rem;
}

.example-box strong {
    color: var(--dark-color);
}

.example-box p {
    margin-top: 0.5rem;
    color: var(--gray-color);
}

/* Paralympics Section */
.paralympics {
    background: var(--white);
}

.paralympics-intro {
    text-align: center;
    margin-bottom: 4rem;
}

.intro-card {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 2rem;
    background: rgba(76, 175, 80, 0.05);
    border-radius: var(--border-radius-large);
    max-width: 800px;
    margin: 0 auto;
    border: 2px solid rgba(76, 175, 80, 0.2);
}

.intro-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    flex-shrink: 0;
}

.intro-content h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.intro-content p {
    color: var(--gray-color);
    line-height: 1.6;
}

.classification-system {
    margin-bottom: 4rem;
}

.classification-system h3 {
    text-align: center;
    color: var(--dark-color);
    margin-bottom: 3rem;
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.classification-system h3 i {
    color: var(--secondary-color);
}

.classification-grid {
    display: grid;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.classification-card {
    background: var(--white);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    overflow: hidden;
    border: 2px solid #eee;
    transition: var(--transition-fast);
}

.classification-card:hover {
    box-shadow: var(--shadow-medium);
    transform: translateY(-5px);
}

.class-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--light-gray);
    cursor: pointer;
    transition: var(--transition-fast);
}

.class-header:hover {
    background: rgba(255, 107, 53, 0.05);
}

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

.classification-card[data-section="visual"] .class-icon {
    background: var(--gradient-secondary);
}

.classification-card[data-section="intelectual"] .class-icon {
    background: var(--gradient-purple);
}

.class-header h4 {
    color: var(--dark-color);
    font-size: 1.4rem;
    flex-grow: 1;
}

.toggle-icon {
    color: var(--gray-color);
    transition: var(--transition-fast);
}

.expandable.expanded .toggle-icon {
    transform: rotate(180deg);
}

.class-content {
    display: none;
    padding: 0 2rem 2rem 2rem;
}

.expandable.expanded .class-content {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 1000px;
    }
}

.impact-section,
.adaptation-section {
    margin-bottom: 2rem;
}

.impact-section h5,
.adaptation-section h5 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.impact-section ul,
.adaptation-section ul {
    list-style: none;
    padding-left: 1rem;
}

.impact-section li,
.adaptation-section li {
    position: relative;
    padding: 0.5rem 0;
    color: var(--gray-color);
    padding-left: 1.5rem;
}

.impact-section li::before,
.adaptation-section li::before {
    content: '•';
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.example-sport {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(33, 150, 243, 0.05);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--secondary-color);
}

.example-sport i {
    color: var(--secondary-color);
    font-size: 1.2rem;
    margin-top: 0.25rem;
}

.example-sport strong {
    color: var(--dark-color);
}

.example-sport p {
    margin-top: 0.5rem;
    color: var(--gray-color);
}

/* Sports Examples */
.sports-examples {
    margin-top: 4rem;
}

.sports-examples h3 {
    text-align: center;
    color: var(--dark-color);
    margin-bottom: 3rem;
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.sports-examples h3 i {
    color: var(--warning-color);
}

.sports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.sport-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: var(--transition-fast);
    border-top: 4px solid var(--accent-color);
}

.sport-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.sport-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    margin: 0 auto 1.5rem;
}

.sport-card h4 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.sport-card p {
    color: var(--gray-color);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.sport-classes {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.class-badge {
    background: var(--gradient-secondary);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Psychology Section */
.psychology {
    background: var(--light-gray);
}

.psychology-intro {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.intro-text p {
    font-size: 1.1rem;
    color: var(--gray-color);
    line-height: 1.7;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
}

.psychology-aspects {
    display: grid;
    gap: 2rem;
    margin-bottom: 4rem;
}

.aspect-card {
    background: var(--white);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    overflow: hidden;
    transition: var(--transition-fast);
}

.aspect-card:hover {
    box-shadow: var(--shadow-medium);
    transform: translateY(-5px);
}

.aspect-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--white);
    cursor: pointer;
    border-bottom: 1px solid #eee;
}

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

.aspect-card[data-section="motivacao"] .aspect-icon {
    background: var(--gradient-primary);
}

.aspect-card[data-section="ansiedade"] .aspect-icon {
    background: var(--gradient-secondary);
}

.aspect-card[data-section="confianca"] .aspect-icon {
    background: var(--gradient-accent);
}

.aspect-card[data-section="foco"] .aspect-icon {
    background: var(--gradient-purple);
}

.aspect-header h3 {
    color: var(--dark-color);
    font-size: 1.5rem;
    flex-grow: 1;
}

.aspect-content {
    display: none;
    padding: 2rem;
}

.expandable.expanded .aspect-content {
    display: block;
    animation: fadeIn 0.3s ease;
}

.concept-explanation {
    font-size: 1.1rem;
    color: var(--gray-color);
    line-height: 1.6;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.applications,
.techniques,
.development-strategies,
.focus-training {
    margin-bottom: 2rem;
}

.applications h4,
.techniques h4,
.development-strategies h4,
.focus-training h4 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.applications ul,
.development-strategies ul,
.focus-training ul {
    list-style: none;
    padding-left: 1rem;
}

.applications li,
.development-strategies li,
.focus-training li {
    position: relative;
    padding: 0.75rem 0;
    color: var(--gray-color);
    padding-left: 1.5rem;
    line-height: 1.5;
}

.applications li::before,
.development-strategies li::before,
.focus-training li::before {
    content: '✓';
    color: var(--accent-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

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

.technique-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.technique-item i {
    color: var(--secondary-color);
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.technique-item h5 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.technique-item p {
    color: var(--gray-color);
    font-size: 0.9rem;
}

.sport-context,
.individual-sports,
.example-application {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
}

.sport-context {
    background: rgba(76, 175, 80, 0.05);
}

.individual-sports {
    background: rgba(156, 39, 176, 0.05);
    border-left-color: var(--purple-color);
}

.example-application {
    background: rgba(255, 152, 0, 0.05);
    border-left-color: var(--warning-color);
}

.sport-context i,
.individual-sports i,
.example-application i {
    font-size: 1.2rem;
    margin-top: 0.25rem;
}

.sport-context i {
    color: var(--accent-color);
}

.individual-sports i {
    color: var(--purple-color);
}

.example-application i {
    color: var(--warning-color);
}

.sport-context strong,
.individual-sports strong,
.example-application strong {
    color: var(--dark-color);
}

.sport-context p,
.individual-sports p,
.example-application p {
    margin-top: 0.5rem;
    color: var(--gray-color);
}

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

.attention-type {
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    text-align: center;
}

.attention-type h5 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.attention-type p {
    color: var(--gray-color);
    font-size: 0.9rem;
}

.psychology-integration {
    background: var(--white);
    padding: 3rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
}

.psychology-integration h3 {
    text-align: center;
    color: var(--dark-color);
    margin-bottom: 2rem;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.psychology-integration h3 i {
    color: var(--purple-color);
}

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

.integration-card {
    text-align: center;
    padding: 2rem;
    border-radius: var(--border-radius);
    background: var(--light-gray);
}

.integration-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-purple);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
    margin: 0 auto 1rem;
}

.integration-card h4 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.integration-card p {
    color: var(--gray-color);
    line-height: 1.5;
}

/* Case Studies Section */
.case-studies {
    background: var(--white);
}

.cases-grid {
    display: grid;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.case-card {
    background: var(--white);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    overflow: hidden;
    border: 2px solid #eee;
    transition: var(--transition-fast);
}

.case-card:hover {
    box-shadow: var(--shadow-medium);
    transform: translateY(-5px);
}

.case-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--light-gray);
    cursor: pointer;
    transition: var(--transition-fast);
}

.case-header:hover {
    background: rgba(255, 107, 53, 0.05);
}

.case-avatar {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    flex-shrink: 0;
}

.case-card[data-section="carlos"] .case-avatar {
    background: var(--gradient-secondary);
}

.case-card[data-section="maria"] .case-avatar {
    background: var(--gradient-accent);
}

.case-info {
    flex-grow: 1;
}

.case-info h3 {
    color: var(--dark-color);
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.case-profile {
    color: var(--gray-color);
    font-size: 1rem;
    font-style: italic;
}

.case-content {
    display: none;
    padding: 2rem;
}

.expandable.expanded .case-content {
    display: block;
    animation: fadeIn 0.5s ease;
}

.case-situation {
    margin-bottom: 2rem;
}

.case-situation h4 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.case-situation h4 i {
    color: var(--secondary-color);
}

.case-situation p {
    color: var(--gray-color);
    line-height: 1.6;
    font-size: 1.05rem;
}

.analysis-steps {
    margin-bottom: 2rem;
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    padding: 2rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-content h5 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.step-content ul {
    list-style: none;
}

.step-content li {
    position: relative;
    padding: 0.5rem 0 0.5rem 1.5rem;
    color: var(--gray-color);
    line-height: 1.5;
}

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

.progression-phases {
    margin-top: 1rem;
}

.phase {
    padding: 1rem;
    background: var(--white);
    margin-bottom: 0.75rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    color: var(--gray-color);
}

.expected-outcomes {
    margin-top: 2rem;
}

.expected-outcomes h4 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.expected-outcomes h4 i {
    color: var(--accent-color);
}

.outcomes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.outcome-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(76, 175, 80, 0.05);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
}

.outcome-item i {
    color: var(--accent-color);
    font-size: 1.5rem;
}

.outcome-item strong {
    color: var(--dark-color);
    display: block;
    margin-bottom: 0.5rem;
}

.outcome-item p {
    color: var(--gray-color);
    font-size: 0.9rem;
}

/* Additional Case Study Elements */
.motor-analysis,
.adaptation-plan,
.psychological-approach,
.development-timeline,
.sensory-adaptations,
.swimming-progression,
.safety-orientation {
    margin-bottom: 2rem;
}

.motor-analysis h4,
.adaptation-plan h4,
.psychological-approach h4,
.development-timeline h4,
.sensory-adaptations h4,
.swimming-progression h4,
.safety-orientation h4 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.skills-assessment {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.skill-category h5 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

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

.adaptation-category {
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.adaptation-category h5 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.adaptation-category h5 i {
    color: var(--secondary-color);
}

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

.strategy-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: var(--border-radius);
}

.strategy-item i {
    color: var(--purple-color);
    font-size: 1.3rem;
    margin-top: 0.25rem;
}

.timeline-phases {
    display: grid;
    gap: 1rem;
}

.timeline-phase {
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    color: var(--gray-color);
    border-left: 4px solid var(--secondary-color);
}

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

.sensory-category {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.sensory-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
    margin: 0 auto 1rem;
}

.sensory-category h5 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

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

.prog-step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.step-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--white);
    flex-shrink: 0;
}

.prog-step h5 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.prog-step p {
    color: var(--gray-color);
    font-size: 0.9rem;
    line-height: 1.4;
}

.safety-measures {
    display: grid;
    gap: 1.5rem;
}

.safety-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(255, 152, 0, 0.05);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--warning-color);
}

.safety-item i {
    color: var(--warning-color);
    font-size: 1.3rem;
    margin-top: 0.25rem;
}

.case-reflection {
    margin-top: 4rem;
    background: var(--light-gray);
    padding: 3rem;
    border-radius: var(--border-radius-large);
}

.case-reflection h3 {
    text-align: center;
    color: var(--dark-color);
    margin-bottom: 2rem;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.case-reflection h3 i {
    color: var(--warning-color);
}

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

.reflection-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.reflection-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.reflection-item h4 {
    color: var(--dark-color);
    margin-bottom: 0.75rem;
}

.reflection-item p {
    color: var(--gray-color);
    line-height: 1.5;
}

/* Bibliography Section */
.bibliography {
    background: var(--light-gray);
}

.bibliography-content {
    max-width: 1000px;
    margin: 0 auto;
}

.main-references {
    margin-bottom: 4rem;
}

.main-references h3 {
    color: var(--dark-color);
    margin-bottom: 2rem;
    font-size: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.main-references h3 i {
    color: var(--warning-color);
}

.reference-list {
    display: grid;
    gap: 2rem;
}

.reference-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    border-left: 4px solid var(--primary-color);
}

.reference-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--white);
    flex-shrink: 0;
}

.reference-content h4 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.reference-content p {
    color: var(--gray-color);
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.reference-note {
    font-size: 0.9rem;
    color: var(--secondary-color);
    font-style: italic;
}

.additional-resources {
    margin-bottom: 4rem;
}

.additional-resources h3 {
    color: var(--dark-color);
    margin-bottom: 2rem;
    font-size: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.additional-resources h3 i {
    color: var(--secondary-color);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.resource-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    text-align: center;
    border-top: 4px solid var(--accent-color);
}

.resource-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
    margin: 0 auto 1.5rem;
}

.resource-card h4 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.resource-card ul {
    list-style: none;
    text-align: left;
}

.resource-card li {
    padding: 0.5rem 0;
    color: var(--gray-color);
    border-bottom: 1px solid #eee;
}

.resource-card li:last-child {
    border-bottom: none;
}

.research-trends h3 {
    color: var(--dark-color);
    margin-bottom: 2rem;
    font-size: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.research-trends h3 i {
    color: var(--purple-color);
}

.trends-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.trend-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
}

.trend-item i {
    color: var(--purple-color);
    font-size: 2rem;
    margin-top: 0.25rem;
}

.trend-item h4 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.trend-item p {
    color: var(--gray-color);
    line-height: 1.5;
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 3rem 0 1rem;
}

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

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-section h3 i {
    color: var(--primary-color);
}

.footer-section h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-section p {
    color: #ccc;
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.footer-section p i {
    color: var(--primary-color);
    margin-right: 0.5rem;
    width: 16px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #444;
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-marker {
        left: 30px;
    }
    
    .timeline-content {
        width: calc(100% - 80px);
        margin-left: 80px !important;
    }
    
    .timeline-item:nth-child(even) .stage-card::before,
    .timeline-item:nth-child(odd) .stage-card::before {
        left: -30px;
        border-right-color: var(--white);
        border-left-color: transparent;
    }
    
    .learning-phases {
        flex-direction: column;
        gap: 1rem;
    }
    
    .intro-card {
        flex-direction: column;
        text-align: center;
    }
    
    .classification-card .class-header,
    .aspect-card .aspect-header,
    .case-card .case-header {
        flex-wrap: wrap;
    }
    
    .step-item {
        flex-direction: column;
        gap: 1rem;
    }
    
    .step-number {
        align-self: flex-start;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        padding: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 2rem;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .tab-buttons {
        flex-direction: column;
    }
    
    .tab-btn {
        justify-content: center;
    }
    
    .objectives-grid,
    .sports-grid,
    .resources-grid,
    .trends-content {
        grid-template-columns: 1fr;
    }
    
    .float-element {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}