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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h2 {
    color: #667eea;
    font-weight: 700;
}

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

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #667eea;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    color: white;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

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

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

.btn-primary, .btn-secondary {
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
}

.btn-primary {
    background: #ff6b6b;
    color: white;
}

.btn-primary:hover {
    background: #ff5252;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #667eea;
}

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

.reading-demo {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.demo-word {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.wpm-display {
    color: #ffd93d;
    font-weight: 600;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: white;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

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

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    background: #f8f9fa;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

/* Trainer Section */
.trainer-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.trainer-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.trainer-container {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.control-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

#speedSlider {
    width: 200px;
    margin-top: 0.5rem;
}

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

.reading-area {
    text-align: center;
    margin: 3rem 0;
}

.word-display {
    background: rgba(255, 255, 255, 0.2);
    padding: 3rem;
    border-radius: 15px;
    margin-bottom: 1rem;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#currentWord {
    font-size: 3rem;
    font-weight: 700;
    color: #ffd93d;
}

.progress-bar {
    background: rgba(255, 255, 255, 0.2);
    height: 8px;
    border-radius: 4px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.progress {
    background: #ffd93d;
    height: 100%;
    width: 0%;
    transition: width 0.3s;
    border-radius: 4px;
}

.text-input {
    margin-top: 2rem;
}

.text-input label {
    display: block;
    margin-bottom: 1rem;
    font-weight: 600;
}

#textArea {
    width: 100%;
    height: 150px;
    padding: 1rem;
    border: none;
    border-radius: 10px;
    font-family: inherit;
    margin-bottom: 1rem;
    resize: vertical;
}

/* Footer */
footer {
    background: #333;
    color: white;
    padding: 2rem 0;
    text-align: center;
}

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

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
}

.footer-links a:hover {
    color: #667eea;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .control-buttons {
        justify-content: center;
    }
    
    #currentWord {
        font-size: 2rem;
    }
    
    footer .container {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Support Section */
.support-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 5rem 0;
    margin: 2rem 0;
    border-radius: 20px;
}

.support-section h2 {
    text-align: center;
    color: #333;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.support-subtitle {
    text-align: center;
    color: #666;
    font-size: 1.2rem;
    margin-bottom: 3rem;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.support-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.support-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.support-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.support-card h3 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.support-card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.support-link {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.support-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

/* FAQ Section */
.faq-section {
    background: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.faq-section h3 {
    text-align: center;
    color: #333;
    font-size: 2rem;
    margin-bottom: 2rem;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid #eee;
    margin-bottom: 1rem;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    cursor: pointer;
    font-weight: 600;
    color: #333;
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: #667eea;
}

.faq-toggle {
    font-size: 1.5rem;
    color: #667eea;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    display: none;
    padding: 0 0 1.5rem 0;
    color: #666;
    line-height: 1.6;
}

.faq-answer p {
    margin: 0;
}

/* Support Section Responsive */
@media (max-width: 768px) {
    .support-section h2 {
        font-size: 2rem;
    }
    
    .support-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .support-card {
        padding: 1.5rem;
    }
    
    .faq-section {
        padding: 2rem;
    }
    
    .faq-section h3 {
        font-size: 1.5rem;
    }
    
    .faq-question {
        padding: 1rem 0;
        font-size: 0.95rem;
    }
}