/* Variáveis CSS */
:root {
    --primary-color: #4a90e2;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --dark-bg: #2c3e50;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-accent: linear-gradient(135deg, var(--accent-color), #FF9EFF);
    --shadow-hover: 0 8px 15px rgba(0, 0, 0, 0.2);
    --border-radius: 8px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* Tipografia */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

/* Navegação */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 700;
}

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

.nav-menu a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-menu a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.hero .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

#particles-js {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: white;
}

.hero .tagline {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    transition: var(--transition);
    font-weight: 500;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* Animações */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 1s ease forwards;
}

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

/* Responsividade */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    section {
        padding: 60px 0;
    }
}

/* Modo Escuro */
body.dark-mode {
    background-color: var(--dark-bg);
    color: #fff;
}

body.dark-mode .navbar {
    background: rgba(44, 62, 80, 0.98);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

body.dark-mode .nav-menu a {
    color: #fff;
}

body.dark-mode h1, 
body.dark-mode h2, 
body.dark-mode h3, 
body.dark-mode h4, 
body.dark-mode h5, 
body.dark-mode h6 {
    color: #fff;
}

/* Scroll Animations */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-30px);
    }
    60% {
        transform: translateY(-15px);
    }
}

/* Seções */
section {
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
    min-height: 100vh;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

/* Timeline */
.timeline {
    background: var(--light-bg);
    position: relative;
    padding: 6rem 0;
    overflow: hidden;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    box-shadow: 0 0 20px rgba(75, 0, 130, 0.3);
}

.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
    min-height: 400px;
}

.timeline-item {
    position: relative;
    padding: 2.5rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin: 4rem 0;
    width: calc(50% - 4rem);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.timeline-item.left {
    margin-right: auto;
}

.timeline-item.right {
    margin-left: auto;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 30px;
    height: 30px;
    background: var(--gradient-primary);
    border-radius: 50%;
    transform: translateY(-50%);
    box-shadow: 0 0 20px rgba(75, 0, 130, 0.5);
    z-index: 1;
}

.timeline-item.left::before {
    right: -45px;
}

.timeline-item.right::before {
    left: -45px;
}

.timeline-item::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 30px;
    height: 2px;
    background: var(--gradient-primary);
    transform: translateY(-50%);
}

.timeline-item.left::after {
    right: -30px;
}

.timeline-item.right::after {
    left: -30px;
}

.timeline-content {
    position: relative;
    transition: all 0.3s ease-out;
}

.timeline-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    position: relative;
    box-shadow: 0 0 30px rgba(75, 0, 130, 0.3);
    transition: all 0.3s ease-out;
}

.timeline-icon::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--gradient-primary);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.8;
    }
    70% {
        transform: scale(1.5);
        opacity: 0;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

.timeline-icon i {
    font-size: 2rem;
    color: white;
    position: relative;
    z-index: 1;
}

.timeline-year {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(75, 0, 130, 0.1);
    border-radius: 20px;
    transition: all 0.3s ease-out;
}

.timeline-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.timeline-content h3::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 3px;
}

.timeline-content p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.timeline-item:hover {
    background: linear-gradient(145deg, #ffffff, #f5f5f5);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.timeline-item:hover .timeline-icon {
    transform: scale(1.1) rotate(5deg);
}

.timeline-item:hover .timeline-year {
    color: var(--primary-color);
    transform: scale(1.1);
}

.timeline-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-item.active {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.timeline-item.active .timeline-icon {
    transform: scale(1.2);
    box-shadow: 0 0 20px var(--primary-color);
}

.timeline-item.active .timeline-year,
.timeline-item.active h3 {
    color: white;
}

.timeline-item.active .timeline-icon {
    background: white;
    color: var(--primary-color);
}

/* Timeline Progress Bar */
.timeline-progress {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin-top: 15px;
    overflow: hidden;
}

.timeline-progress .progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
    transition: width 1s ease-in-out;
}

/* Timeline Item States */
.timeline-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.timeline-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-item.active {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.timeline-item.active .timeline-icon {
    transform: scale(1.2);
    box-shadow: 0 0 20px var(--primary-color);
}

/* Timeline Icon Animation */
.timeline-icon {
    transition: all 0.3s ease-out;
}

.timeline-icon:hover {
    transform: scale(1.1) rotate(5deg);
}

/* Timeline Content Hover Effects */
.timeline-content {
    transition: all 0.3s ease-out;
}

.timeline-item:hover .timeline-content {
    transform: translateY(-5px);
}

/* Timeline Year Animation */
.timeline-year {
    transition: all 0.3s ease-out;
}

/* Timeline Item Hover State */
.timeline-item:hover {
    background: linear-gradient(145deg, #ffffff, #f5f5f5);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

/* Timeline Item Active State */
.timeline-item.active {
    background: linear-gradient(145deg, var(--primary-color), var(--accent-color));
    color: white;
}

.timeline-item.active .timeline-year,
.timeline-item.active h3 {
    color: white;
}

/* Timeline Item Active Icon */
.timeline-item.active .timeline-icon {
    background: white;
    color: var(--primary-color);
}

/* Responsividade da Timeline */
@media (max-width: 768px) {
    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        width: calc(100% - 60px);
        margin-left: 60px;
    }

    .timeline-item.left,
    .timeline-item.right {
        margin-left: 60px;
    }

    .timeline-item::before {
        left: -45px;
    }

    .timeline-item::after {
        left: -30px;
    }

    .timeline-item.left::before,
    .timeline-item.right::before {
        left: -45px;
    }

    .timeline-item.left::after,
    .timeline-item.right::after {
        left: -30px;
    }
}

/* Work Section */
.work-section {
    background: var(--light-bg);
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.work-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(75, 0, 130, 0.05) 0%, rgba(255, 198, 230, 0.05) 100%);
    z-index: 1;
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
    position: relative;
    z-index: 2;
}

.work-card {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.work-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.work-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: var(--gradient-accent);
    opacity: 0.1;
    border-radius: 50%;
    transform: translate(50%, -50%);
    transition: all 0.4s ease;
}

.work-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.work-card:hover::before {
    transform: scaleX(1);
}

.work-card:hover::after {
    transform: translate(30%, -30%) scale(1.2);
    opacity: 0.2;
}

.work-card h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.work-card h3::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.work-card:hover h3::after {
    width: 100%;
}

.work-card .role {
    font-size: 1.2rem;
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.work-card .period {
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 1.5rem;
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(255, 198, 230, 0.1);
    border-radius: 20px;
}

.work-card .description {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.work-card .location-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.work-card .location-info {
    display: flex;
    align-items: center;
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.work-card .location-details {
    font-size: 0.9rem;
    color: #666;
}

/* Work Card Achievements */
.work-card .achievements {
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: rgba(75, 0, 130, 0.03);
    border-radius: var(--border-radius);
}

.work-card .achievements h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.work-card .achievements h4::before {
    content: '\f0a4';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    margin-right: 0.5rem;
    color: var(--accent-color);
}

.work-card .achievements ul {
    list-style: none;
    padding: 0;
}

.work-card .achievements li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: flex-start;
    color: #666;
    line-height: 1.6;
}

.work-card .achievements li i {
    color: var(--accent-color);
    margin-right: 0.8rem;
    font-size: 1.1rem;
    margin-top: 0.2rem;
}

/* Work Card Location Info */
.work-card .location-info {
    display: flex;
    align-items: flex-start;
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.work-card .location-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 1rem;
    margin-top: 0.2rem;
}

.work-card .location-details {
    flex: 1;
}

.work-card .location-details p {
    margin: 0.3rem 0;
    color: #666;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
}

.work-card .location-details p i {
    margin-right: 0.5rem;
    color: var(--accent-color);
    font-size: 1rem;
}

/* Work Card Hover Effects */
.work-card:hover .achievements {
    background: rgba(75, 0, 130, 0.05);
}

.work-card:hover .location-icon {
    transform: scale(1.1);
    color: var(--accent-color);
}

.work-card:hover .achievements li i {
    transform: scale(1.1);
}

/* Work Card Active State */
.work-card.active {
    transform: scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.work-card.active .achievements {
    background: rgba(75, 0, 130, 0.08);
}

.work-card.active .location-icon {
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

/* Responsividade da Seção de Trabalho */
@media (max-width: 768px) {
    .work-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .work-card {
        padding: 2rem;
    }

    .work-card h3 {
        font-size: 1.5rem;
    }
}

/* About Section */
.about-section {
    background: var(--light-bg);
    padding: 8rem 0;
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(75, 0, 130, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 198, 230, 0.05) 0%, transparent 50%);
    z-index: 1;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.about-image {
    position: relative;
    border-radius: 30px;
    overflow: hidden;
    transform: perspective(1000px) rotateY(-5deg);
    transition: all 0.5s ease;
}

.about-image:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.about-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(75, 0, 130, 0.2), rgba(255, 198, 230, 0.2));
    z-index: 1;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.about-image:hover::before {
    opacity: 1;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 30px;
    transition: transform 0.5s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

.about-text {
    position: relative;
}

.about-text h2 {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

.about-text h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.5s ease;
}

.about-text:hover h2::after {
    width: 100%;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 2rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 3rem 0;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.stat-item:hover::before {
    opacity: 0.1;
}

.stat-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 2;
}

.stat-label {
    font-size: 1rem;
    color: #666;
    position: relative;
    z-index: 2;
}

.about-skills {
    margin-top: 3rem;
}

.skill-tag {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    margin: 0.5rem;
    background: white;
    border-radius: 50px;
    color: var(--primary-color);
    font-weight: 500;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.skill-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.skill-tag:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    color: white;
}

.skill-tag:hover::before {
    opacity: 1;
}

.skill-tag span {
    position: relative;
    z-index: 2;
}

.about-cta {
    margin-top: 3rem;
    text-align: center;
}

.about-cta .cta-button {
    display: inline-block;
    padding: 1.2rem 2.5rem;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.about-cta .cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: 0.5s;
}

.about-cta .cta-button:hover::before {
    left: 100%;
}

.about-cta .cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(75, 0, 130, 0.2);
}

/* Responsividade da Seção Sobre */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .about-image {
        max-width: 600px;
        margin: 0 auto;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .about-section {
        padding: 6rem 0;
    }

    .about-text h2 {
        font-size: 2.5rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .stat-item {
        padding: 1.2rem;
    }

    .stat-number {
        font-size: 2rem;
    }
}

/* Courses Section */
.courses-section {
    background: var(--light-bg);
    padding: 8rem 0;
    position: relative;
    overflow: hidden;
}

.courses-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 10% 10%, rgba(75, 0, 130, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 90% 90%, rgba(255, 198, 230, 0.03) 0%, transparent 50%);
    z-index: 1;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 2;
    min-height: 400px;
}

.course-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: opacity 0.5s ease, transform 0.5s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    opacity: 0;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.course-card:hover::before {
    opacity: 0.05;
}

.course-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.course-card:hover .course-image img {
    transform: scale(1.1);
}

.course-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.7));
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: opacity 0.4s ease;
}

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

.course-level {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transform: translateY(-10px);
    opacity: 0;
    transition: all 0.4s ease;
}

.course-card:hover .course-level {
    transform: translateY(0);
    opacity: 1;
}

.course-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 2;
}

.course-title {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.course-title::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.course-card:hover .course-title::after {
    width: 100%;
}

.course-info {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.course-info-item {
    display: flex;
    align-items: center;
    color: #666;
    font-size: 0.9rem;
}

.course-info-item i {
    color: var(--accent-color);
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

.course-description {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.course-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.course-tag {
    padding: 0.4rem 0.8rem;
    background: rgba(75, 0, 130, 0.1);
    color: var(--primary-color);
    border-radius: 15px;
    font-size: 0.8rem;
    transition: all 0.3s ease;
}

.course-tag:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    margin-top: auto;
}

.course-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.course-price small {
    font-size: 0.9rem;
    color: #666;
    font-weight: 400;
}

.course-button {
    padding: 0.8rem 1.5rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 25px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.course-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: 0.5s;
}

.course-button:hover::before {
    left: 100%;
}

.course-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(75, 0, 130, 0.2);
}

.course-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(75, 0, 130, 0.1);
    overflow: hidden;
}

.course-progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    width: 0;
    transition: width 1.5s ease;
}

.course-card:hover .course-progress-bar {
    width: 100%;
}

/* Responsividade da Seção de Cursos */
@media (max-width: 992px) {
    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .courses-section {
        padding: 6rem 0;
    }

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

    .course-card {
        max-width: 500px;
        margin: 0 auto;
    }
}

/* Testimonials Section */
.testimonials-section {
    background: var(--light-bg);
    padding: 8rem 0;
    position: relative;
    overflow: hidden;
}

.testimonials-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(75, 0, 130, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 198, 230, 0.05) 0%, transparent 50%);
    z-index: 1;
}

.testimonial-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    padding: 2rem 0;
    overflow: hidden;
}

.testimonial-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
}

.testimonial {
    min-width: 100%;
    flex-shrink: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.testimonial.active {
    opacity: 1;
    transform: translateX(0);
}

.testimonial-content {
    background: white;
    padding: 3rem;
    border-radius: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    position: relative;
    max-width: 700px;
    width: 100%;
    margin: 0 auto;
    transition: all 0.3s ease;
}

.testimonial-content::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 30px;
    font-size: 120px;
    color: var(--accent-color);
    opacity: 0.2;
    font-family: serif;
}

.testimonial-content::after {
    content: '"';
    position: absolute;
    bottom: -100px;
    right: 30px;
    font-size: 120px;
    color: var(--accent-color);
    opacity: 0.2;
    font-family: serif;
}

.testimonial-image {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: -80px auto 2rem;
    border: 5px solid white;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.testimonial-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.testimonial:hover .testimonial-image {
    transform: scale(1.1) rotate(5deg);
}

.testimonial:hover .testimonial-image::after {
    opacity: 0.2;
}

.testimonial-text {
    font-size: 1.2rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 2rem;
    position: relative;
}

.testimonial-emoji {
    font-size: 2rem;
    margin: 1rem 0;
    animation: bounce 1s infinite;
}

.testimonial-author {
    margin-top: 2rem;
}

.testimonial-author h4 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.testimonial-role {
    color: var(--accent-color);
    font-weight: 500;
}

.testimonial-rating {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin: 1rem 0;
}

.testimonial-rating i {
    color: #FFD700;
    font-size: 1.2rem;
    animation: starPulse 1s infinite;
}

@keyframes starPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.testimonial-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.testimonial-nav button {
    background: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.testimonial-nav button:hover {
    transform: scale(1.1);
    background: var(--gradient-primary);
    color: white;
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.testimonial-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(75, 0, 130, 0.2);
    cursor: pointer;
    transition: all 0.3s ease;
}

.testimonial-dot.active {
    background: var(--gradient-primary);
    transform: scale(1.2);
}

/* Responsividade dos Depoimentos */
@media (max-width: 768px) {
    .testimonial-slider {
        max-width: 100%;
        padding: 1rem;
    }
    
    .testimonial-content {
        padding: 2rem;
        max-width: 100%;
        width: 100%;
    }

    .testimonial-text {
        font-size: 1rem;
        line-height: 1.6;
    }

    .testimonial-image {
        width: 80px;
        height: 80px;
        margin-top: -50px;
    }
    
    .testimonial-nav {
        gap: 1rem;
    }
    
    .testimonial-nav button {
        width: 40px;
        height: 40px;
    }
}

/* Contact Section */
.contact-section {
    background: var(--light-bg);
    padding: 8rem 0;
    position: relative;
    overflow: hidden;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(75, 0, 130, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 198, 230, 0.05) 0%, transparent 50%);
    z-index: 1;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    position: relative;
    z-index: 2;
}

.contact-info {
    padding: 3rem;
    background: white;
    border-radius: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.contact-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
}

.contact-info h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-align: left;
}

.contact-info p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.contact-details {
    margin-top: 3rem;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(75, 0, 130, 0.03);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(10px);
    background: rgba(75, 0, 130, 0.05);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1.5rem;
    color: white;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.contact-item:hover .contact-icon {
    transform: scale(1.1) rotate(10deg);
}

.contact-text {
    flex: 1;
}

.contact-text h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.contact-text p {
    color: #666;
    margin: 0;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-link {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.social-link:hover {
    transform: translateY(-5px);
    color: white;
}

.social-link:hover::before {
    opacity: 1;
}

.social-link i {
    position: relative;
    z-index: 1;
}

.contact-form {
    padding: 3rem;
    background: white;
    border-radius: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    position: relative;
}

.contact-form::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-accent);
}

.form-group {
    position: relative;
    margin-bottom: 2rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1.2rem;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.9);
    transition: all 0.3s ease;
    font-size: 1rem;
}

.form-group label {
    position: absolute;
    left: 1.2rem;
    top: 1.2rem;
    color: #666;
    transition: all 0.3s ease;
    pointer-events: none;
    background: white;
    padding: 0 0.5rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(75, 0, 130, 0.1);
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -0.5rem;
    left: 1rem;
    font-size: 0.9rem;
    color: var(--primary-color);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-button {
    background: var(--gradient-primary);
    color: white;
    padding: 1.2rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    width: 100%;
    font-size: 1.1rem;
}

.submit-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: 0.5s;
}

.submit-button:hover::before {
    left: 100%;
}

.submit-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(75, 0, 130, 0.2);
}

.form-success {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: #4CAF50;
    color: white;
    padding: 1rem 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transform: translateX(150%);
    transition: transform 0.3s ease;
    z-index: 1000;
}

.form-success.show {
    transform: translateX(0);
}

/* Responsividade da Seção de Contato */
@media (max-width: 992px) {
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .contact-info,
    .contact-form {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .contact-section {
        padding: 6rem 0;
    }

    .contact-info h2 {
        font-size: 2rem;
    }

    .contact-item {
        padding: 1rem;
    }

    .contact-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: var(--light-color);
    padding: 3rem 0;
    text-align: center;
}

.social-links {
    margin-bottom: 1rem;
}

.social-links a {
    color: var(--light-color);
    font-size: 1.5rem;
    margin: 0 1rem;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--accent-color);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition);
    border: none;
    box-shadow: var(--shadow);
}

.back-to-top.visible {
    opacity: 1;
}

/* Welcome Popup */
.welcome-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.welcome-popup.active {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    position: relative;
    max-width: 400px;
    width: 90%;
}

.close-popup {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-color);
}

/* Dark Mode */
body.dark-mode {
    background-color: var(--dark-bg);
    color: #fff;
}

body.dark-mode .navbar {
    background: rgba(44, 62, 80, 0.98);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

body.dark-mode .nav-menu a {
    color: #fff;
}

body.dark-mode .form-group input,
body.dark-mode .form-group textarea {
    background: rgba(255, 255, 255, 0.1);
    color: var(--light-color);
}

body.dark-mode .form-group label {
    color: #999;
}

body.dark-mode .popup-content {
    background: var(--dark-color);
    color: var(--light-color);
}

/* Dark Mode Toggle */
.dark-mode-toggle {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    background: var(--gradient-primary);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: var(--transition);
}

.dark-mode-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-hover);
}

/* Testimonials */
.testimonial {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin: 1rem;
    transition: var(--transition);
}

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

.testimonial img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent-color);
    margin-bottom: 1rem;
}

/* Submit Button */
.submit-button {
    background: var(--gradient-primary);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.submit-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

/* Estilos para modo escuro em seções e cards */
body.dark-mode section, 
body.dark-mode .timeline, 
body.dark-mode .work-section, 
body.dark-mode .about-section, 
body.dark-mode .courses-section, 
body.dark-mode .testimonials-section, 
body.dark-mode .contact-section {
    background-color: var(--dark-bg);
}

body.dark-mode .timeline::before,
body.dark-mode .timeline-item::before,
body.dark-mode .timeline-item::after {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
    box-shadow: 0 0 20px rgba(106, 13, 173, 0.5);
}

body.dark-mode .timeline-item {
    background: #3b506b;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

body.dark-mode .timeline-year {
    color: #ccc;
    background: rgba(106, 13, 173, 0.2);
}

body.dark-mode .timeline-content p {
    color: #bbb;
}

body.dark-mode .timeline-item:hover {
    background: linear-gradient(145deg, #4a6280, #5c7490);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

body.dark-mode .timeline-item.active {
    background: linear-gradient(145deg, #6a0dad, #a45ee5);
    color: #fff;
}

body.dark-mode .timeline-item.active .timeline-year,
body.dark-mode .timeline-item.active h3 {
    color: #fff;
}

body.dark-mode .work-card {
    background: #3b506b;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

body.dark-mode .work-card::before {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
}

body.dark-mode .work-card:hover {
    background: linear-gradient(145deg, #4a6280, #5c7490);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

body.dark-mode .work-card h3 {
    color: #fff;
}

body.dark-mode .work-card .role {
    color: #ccc;
}

body.dark-mode .work-card .period {
    color: #FF9EFF;
    background: rgba(255, 158, 255, 0.15);
    padding: 0.6rem 1.2rem;
}

body.dark-mode .work-card .description {
    color: #ddd;
}

body.dark-mode .work-card .location-icon {
    color: #a45ee5;
}

body.dark-mode .work-card .location-details p {
    color: #ccc;
}

body.dark-mode .work-card .location-details p i {
    color: #FF9EFF;
}

body.dark-mode .work-card .achievements {
    background: rgba(106, 13, 173, 0.1);
    padding: 1.5rem;
}

body.dark-mode .work-card .achievements h4 {
    color: #fff;
}

body.dark-mode .work-card .achievements h4::before {
    color: #FF9EFF;
}

body.dark-mode .work-card .achievements li {
    color: #ccc;
}

body.dark-mode .work-card .achievements li i {
    color: #a45ee5;
}

body.dark-mode .about-content {
    gap: 4rem;
}

body.dark-mode .about-image::before {
    background: linear-gradient(45deg, rgba(106, 13, 173, 0.3), rgba(255, 158, 255, 0.3));
}

body.dark-mode .about-text h2 {
    color: #fff;
}

body.dark-mode .about-text h2::after {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
}

body.dark-mode .about-text p {
    color: #bbb;
}

body.dark-mode .stat-item {
    background: #3b506b;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

body.dark-mode .stat-item::before {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
}

body.dark-mode .stat-number {
    color: #a45ee5;
}

body.dark-mode .stat-label {
    color: #bbb;
}

body.dark-mode .skill-tag {
    background: #3b506b;
    color: #a45ee5;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

body.dark-mode .skill-tag::before {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
}

body.dark-mode .skill-tag:hover {
    color: #fff;
}

body.dark-mode .about-cta .cta-button {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
    box-shadow: 0 10px 30px rgba(106, 13, 173, 0.2);
}

body.dark-mode .course-card {
    background: #3b506b;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

body.dark-mode .course-card::before {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
}

body.dark-mode .course-card:hover::before {
    opacity: 0.1;
}

body.dark-mode .course-title {
    color: #fff;
}

body.dark-mode .course-title::after {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
}

body.dark-mode .course-info-item {
    color: #bbb;
}

body.dark-mode .course-info-item i {
    color: #FF9EFF;
}

body.dark-mode .course-description {
    color: #bbb;
}

body.dark-mode .course-tag {
    background: rgba(106, 13, 173, 0.2);
    color: #a45ee5;
}

body.dark-mode .course-tag:hover {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
    color: white;
}

body.dark-mode .course-price {
    color: #a45ee5;
}

body.dark-mode .course-price small {
    color: #bbb;
}

body.dark-mode .course-button {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

body.dark-mode .course-progress {
    background: rgba(106, 13, 173, 0.2);
}

body.dark-mode .course-progress-bar {
    background: linear-gradient(90deg, #6a0dad, #a45ee5);
}

body.dark-mode .testimonial-content {
    background: #3b506b;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

body.dark-mode .testimonial-content::before,
body.dark-mode .testimonial-content::after {
    color: #FF9EFF;
    opacity: 0.3;
}

body.dark-mode .testimonial-image {
    border-color: #3b506b;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

body.dark-mode .testimonial-image::after {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
}

body.dark-mode .testimonial-text {
    color: #bbb;
}

body.dark-mode .testimonial-author h4 {
    color: #fff;
}

body.dark-mode .testimonial-role {
    color: #FF9EFF;
}

body.dark-mode .testimonial-rating i {
    color: #FFD700;
}

body.dark-mode .testimonial-nav button {
    background: #3b506b;
    color: #a45ee5;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

body.dark-mode .testimonial-nav button:hover {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
    color: white;
}

body.dark-mode .testimonial-dot {
    background: rgba(106, 13, 173, 0.3);
}

body.dark-mode .testimonial-dot.active {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
}

body.dark-mode .contact-info {
    background: #3b506b;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

body.dark-mode .contact-info::before {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
}

body.dark-mode .contact-info h2 {
    color: #fff;
}

body.dark-mode .contact-info p {
    color: #bbb;
}

body.dark-mode .contact-item {
    background: rgba(106, 13, 173, 0.2);
}

body.dark-mode .contact-item:hover {
    background: rgba(106, 13, 173, 0.3);
}

body.dark-mode .contact-icon {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
}

body.dark-mode .contact-text h4 {
    color: #fff;
}

body.dark-mode .contact-text p {
    color: #bbb;
}

body.dark-mode .social-link {
    background: #3b506b;
    color: #a45ee5;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

body.dark-mode .social-link::before {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
}

body.dark-mode .social-link:hover {
    color: white;
}

body.dark-mode .contact-form {
    background: #3b506b;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

body.dark-mode .contact-form::before {
    background: linear-gradient(135deg, #FF9EFF, #e74c3c);
}

body.dark-mode .form-group input,
body.dark-mode .form-group textarea {
    background: #4a6280;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.2);
}

body.dark-mode .form-group label {
    color: #bbb;
    background: #3b506b;
}

body.dark-mode .form-group input:focus + label,
body.dark-mode .form-group textarea:focus + label,
body.dark-mode input:not(:placeholder-shown) + label,
body.dark-mode textarea:not(:placeholder-shown) + label {
    color: #a45ee5;
}

body.dark-mode .submit-button {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

body.dark-mode .footer {
    background: #1a242f;
    color: #bbb;
}

body.dark-mode .social-links a {
    color: #bbb;
}

body.dark-mode .social-links a:hover {
    color: #FF9EFF;
}

body.dark-mode .back-to-top {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

body.dark-mode .welcome-popup {
    background: rgba(0, 0, 0, 0.7);
}

body.dark-mode .popup-content {
    background: #3b506b;
    color: #fff;
}

body.dark-mode .close-popup {
    color: #bbb;
}

/* Dark Mode Toggle */
body.dark-mode .dark-mode-toggle {
    background: linear-gradient(135deg, #FF9EFF, #e74c3c);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

body.dark-mode .testimonial {
    background: #3b506b;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

body.dark-mode .testimonial img {
    border-color: #FF9EFF;
}

body.dark-mode .submit-button {
    background: linear-gradient(135deg, #6a0dad, #a45ee5);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}