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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #0f172a;
    --accent-color: #10b981;
    --text-color: #1e293b;
    --text-light: #64748b;
    --bg-color: #ffffff;
    --bg-light: #f8fafc;
    --border-color: #e2e8f0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-light);
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 20px;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.tagline {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto;
}

.hero-cta {
    margin-top: 2.5rem;
}

.cta-button {
    display: inline-block;
    background-color: white;
    color: var(--primary-color);
    padding: 1rem 2.5rem;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.3);
}

.cta-button:active {
    transform: translateY(-1px);
}

.cta-subtext {
    margin-top: 1rem;
    font-size: 0.95rem;
    opacity: 0.9;
}

/* Instructor Section */
.instructor {
    padding: 60px 20px;
    background-color: var(--bg-color);
}

.instructor h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

.instructor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.credential {
    text-align: center;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.credential:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

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

.credential h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.credential p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Highlights Section */
.highlights {
    padding: 60px 20px;
    background-color: var(--bg-light);
}

.highlights h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.highlight-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.highlight-card:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.highlight-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--primary-dark);
}

.highlight-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Why Section */
.why-section {
    padding: 60px 20px;
    background-color: var(--bg-color);
}

.why-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

.why-grid {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    gap: 1.5rem;
}

.why-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 8px;
}

.checkmark {
    color: var(--accent-color);
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
}

.why-item p {
    font-size: 1.1rem;
    color: var(--text-color);
}

/* Pricing Section */
.pricing {
    padding: 60px 20px;
    background-color: var(--bg-light);
}

.pricing h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

.pricing-card {
    max-width: 700px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    padding: 3rem;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    border: 2px solid var(--border-color);
}

.duration {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

.duration h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.duration p {
    color: var(--text-light);
    font-size: 1rem;
}

.price-container {
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.original-price {
    text-align: center;
    opacity: 0.7;
}

.original-price .label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.original-price .amount {
    display: block;
    font-size: 1.5rem;
    color: var(--text-color);
    text-decoration: line-through;
}

.current-price {
    text-align: center;
}

.current-price .label {
    display: block;
    font-size: 1rem;
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.current-price .amount {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.current-price .savings {
    display: inline-block;
    background: #d1fae5;
    color: #065f46;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.offer-badge {
    text-align: center;
    margin-bottom: 2rem;
}

.urgency {
    display: inline-block;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(238, 90, 111, 0.3);
    animation: pulse 2s ease-in-out infinite;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.urgency:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 20px rgba(238, 90, 111, 0.4);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

.whats-included {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
}

.whats-included h4 {
    font-size: 1.3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.whats-included ul {
    list-style: none;
    padding: 0;
}

.whats-included li {
    padding: 0.7rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--text-color);
    font-size: 1rem;
}

.whats-included li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
    font-size: 1.3rem;
}

/* Registration Section */
.registration {
    padding: 60px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.registration h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: white;
}

.form-intro {
    text-align: center;
    font-size: 1.2rem;
    color: white;
    margin-bottom: 3rem;
    opacity: 0.95;
}

.registration-form {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--secondary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.submit-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.submit-btn:active {
    transform: translateY(0);
}

.submit-btn:disabled {
    background-color: var(--text-light);
    cursor: not-allowed;
    transform: none;
}

.form-message {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    display: none;
}

.form-message.success {
    display: block;
    background-color: #d1fae5;
    color: #065f46;
    border: 2px solid #10b981;
}

.form-message.error {
    display: block;
    background-color: #fee2e2;
    color: #991b1b;
    border: 2px solid #ef4444;
}

/* Footer */
.footer {
    padding: 40px 20px;
    text-align: center;
    background-color: var(--secondary-color);
    color: white;
}

.footer a {
    color: var(--accent-color);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

.footer-note {
    margin-top: 1rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    .tagline {
        font-size: 1rem;
    }

    .cta-button {
        font-size: 1.1rem;
        padding: 0.9rem 2rem;
    }

    .cta-subtext {
        font-size: 0.9rem;
    }

    .instructor h2,
    .highlights h2,
    .why-section h2,
    .pricing h2,
    .registration h2 {
        font-size: 2rem;
    }

    .instructor-grid,
    .highlights-grid {
        grid-template-columns: 1fr;
    }

    .pricing-card {
        padding: 2rem;
    }

    .price-container {
        flex-direction: column;
        gap: 1.5rem;
    }

    .current-price .amount {
        font-size: 2.5rem;
    }

    .registration-form {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 20px;
    }

    .hero-content h1 {
        font-size: 1.75rem;
    }

    .cta-button {
        font-size: 1rem;
        padding: 0.8rem 1.8rem;
    }

    .cta-subtext {
        font-size: 0.85rem;
    }

    .pricing-card {
        padding: 1.5rem;
    }

    .current-price .amount {
        font-size: 2rem;
    }

    .duration h3 {
        font-size: 1.5rem;
    }

    .urgency {
        font-size: 0.9rem;
        padding: 0.6rem 1.2rem;
    }

    .registration-form {
        padding: 1.5rem;
    }
}