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

:root {
    --primary-color: #8b4513;
    --secondary-color: #ff6b35;
    --accent-color: #2e8b57;
    --success-color: #32cd32;
    --warning-color: #ffa500;
    --error-color: #dc143c;
    --text-main: #2f1b14;
    --text-muted: #6b4423;
    --background-main: #ffffff;
    --background-alt: #faf8f5;
    --background-warm: #f5f1eb;
    --border-subtle: #e8ddd4;
    --shadow-light: 0 2px 8px rgba(139, 69, 19, 0.08);
    --shadow-medium: 0 6px 20px rgba(139, 69, 19, 0.12);
    --shadow-heavy: 0 12px 40px rgba(139, 69, 19, 0.16);
    --radius-base: 10px;
    --radius-large: 16px;
    --font-primary: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Merriweather', Georgia, serif;
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-primary);
    line-height: 1.65;
    color: var(--text-main);
    background: var(--background-main);
    overflow-x: hidden;
}

.content-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 28px;
}

.top-navigation {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(16px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--border-subtle);
    transition: var(--transition-base);
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
}

.site-brand a {
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
    font-family: var(--font-heading);
    letter-spacing: -0.03em;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.75rem;
}

.nav-menu a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-base);
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--secondary-color);
    transition: var(--transition-base);
    border-radius: 2px;
}

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

.menu-trigger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.menu-trigger span {
    width: 30px;
    height: 3px;
    background: var(--primary-color);
    margin: 4px 0;
    transition: var(--transition-base);
    border-radius: 2px;
}

.primary-hero {
    background: linear-gradient(135deg, var(--background-alt) 0%, var(--background-warm) 100%);
    padding: 160px 0 120px;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 6rem;
    align-items: center;
}

.hero-message h1 {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.75rem;
    color: var(--text-main);
    font-family: var(--font-heading);
    letter-spacing: -0.025em;
}

.hero-description {
    font-size: 1.35rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.primary-btn, .secondary-btn {
    padding: 20px 40px;
    border-radius: var(--radius-large);
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition-base);
    display: inline-block;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 1.1rem;
}

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

.primary-btn:hover {
    background: #6b3410;
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

.secondary-btn {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

.btn-fullwidth {
    width: 100%;
}

.trust-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 2.25rem;
}

.badge-item {
    color: var(--success-color);
    font-weight: 600;
    font-size: 0.95rem;
}

.main-hero-img {
    width: 100%;
    height: 580px;
    object-fit: cover;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-heavy);
}

.chord-showcase {
    padding: 120px 0;
    background: var(--background-main);
}

.showcase-intro {
    text-align: center;
    margin-bottom: 5rem;
}

.showcase-intro h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    font-family: var(--font-heading);
}

.showcase-intro p {
    font-size: 1.3rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
}

.chord-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.chord-item {
    background: var(--background-alt);
    border-radius: var(--radius-large);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: var(--transition-base);
    border: 1px solid var(--border-subtle);
}

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

.chord-visual {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.chord-info {
    padding: 2.5rem;
}

.chord-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--text-main);
}

.chord-info p {
    color: var(--text-muted);
    line-height: 1.6;
}

.curriculum-overview {
    padding: 120px 0;
    background: var(--background-warm);
}

.curriculum-layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 6rem;
    align-items: center;
}

.curriculum-content h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--text-main);
    font-family: var(--font-heading);
}

.lesson-modules {
    margin-bottom: 3rem;
}

.module-block {
    margin-bottom: 2.5rem;
    padding-bottom: 2.25rem;
    border-bottom: 1px solid var(--border-subtle);
}

.module-block:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.module-block h4 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
}

.module-block p {
    color: var(--text-muted);
    line-height: 1.6;
}

.curriculum-img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-medium);
}

.strumming-demo {
    padding: 120px 0;
    background: var(--background-main);
}

.demo-title {
    text-align: center;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 4rem;
    color: var(--text-main);
    font-family: var(--font-heading);
}

.pattern-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

.pattern-card {
    background: var(--background-alt);
    padding: 3rem;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: var(--transition-base);
    border: 1px solid var(--border-subtle);
}

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

.pattern-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--text-main);
}

.pattern-notation {
    font-family: 'Courier New', monospace;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    background: var(--background-main);
    padding: 1rem;
    border-radius: var(--radius-base);
    margin-bottom: 1.5rem;
    border: 2px solid var(--border-subtle);
}

.pattern-card p {
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.pattern-tempo {
    font-size: 0.9rem;
    color: var(--secondary-color);
    font-weight: 600;
}

.student-testimonials {
    padding: 120px 0;
    background: var(--background-warm);
}

.testimonial-heading {
    text-align: center;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 4rem;
    color: var(--text-main);
    font-family: var(--font-heading);
}

.testimonial-rotator {
    position: relative;
    max-width: 950px;
    margin: 0 auto 3rem;
}

.testimonial-panel {
    display: none;
    background: var(--background-main);
    padding: 4rem;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-medium);
    text-align: center;
}

.testimonial-panel.active {
    display: block;
}

.testimonial-quote p {
    font-size: 1.4rem;
    line-height: 1.6;
    margin-bottom: 3rem;
    color: var(--text-main);
    font-style: italic;
}

.testimonial-attribution strong {
    display: block;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.testimonial-attribution span {
    color: var(--text-muted);
    font-size: 1rem;
}

.review-stars {
    color: var(--secondary-color);
    font-size: 1.4rem;
    margin-top: 1rem;
}

.testimonial-indicators {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.indicator-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: none;
    background: var(--border-subtle);
    cursor: pointer;
    transition: var(--transition-base);
}

.indicator-dot.active {
    background: var(--primary-color);
}

.instructor-credentials {
    padding: 120px 0;
    background: var(--background-main);
}

.credentials-layout {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 6rem;
    align-items: center;
}

.instructor-photo {
    width: 100%;
    height: 450px;
    object-fit: cover;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-medium);
}

.credentials-content h2 {
    font-size: 2.75rem;
    font-weight: 700;
    margin-bottom: 1.75rem;
    color: var(--text-main);
    font-family: var(--font-heading);
}

.credentials-intro {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    line-height: 1.6;
}

.qualification-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.qualification-item strong {
    display: block;
    font-size: 1.15rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.qualification-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

.song-examples {
    padding: 120px 0;
    background: var(--background-alt);
}

.examples-heading {
    text-align: center;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 4rem;
    color: var(--text-main);
    font-family: var(--font-heading);
}

.song-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.song-category {
    background: var(--background-main);
    padding: 3rem;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-subtle);
}

.song-category h3 {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--primary-color);
    text-align: center;
}

.song-list {
    list-style: none;
}

.song-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-muted);
    font-weight: 500;
}

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

.learning-benefits {
    padding: 120px 0;
    background: var(--background-main);
}

.benefits-header {
    text-align: center;
    margin-bottom: 5rem;
}

.benefits-header h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    font-family: var(--font-heading);
}

.benefits-header p {
    font-size: 1.3rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
}

.benefits-matrix {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
}

.benefit-box {
    background: var(--background-alt);
    padding: 3rem;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-light);
    text-align: center;
    transition: var(--transition-base);
    border: 1px solid var(--border-subtle);
}

.benefit-box:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
}

.benefit-icon {
    font-size: 3.5rem;
    margin-bottom: 2rem;
    display: block;
}

.benefit-box h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--text-main);
}

.benefit-box p {
    color: var(--text-muted);
    line-height: 1.6;
}

.registration-area {
    padding: 120px 0;
    background: var(--background-warm);
}

.registration-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: start;
}

.program-details h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.75rem;
    color: var(--text-main);
    font-family: var(--font-heading);
}

.program-details > p {
    font-size: 1.3rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    line-height: 1.6;
}

.program-features {
    display: flex;
    flex-direction: column;
    gap: 2.25rem;
}

.feature-highlight strong {
    display: block;
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.feature-highlight p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

.registration-form-container {
    background: var(--background-main);
    padding: 4rem;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-medium);
}

.registration-form h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 3rem;
    color: var(--text-main);
    text-align: center;
}

.field-group {
    margin-bottom: 2rem;
}

.field-group label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--text-main);
}

.field-group input,
.field-group select {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border-subtle);
    border-radius: var(--radius-base);
    font-size: 1rem;
    transition: var(--transition-base);
    background: var(--background-main);
}

.field-group input:focus,
.field-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.1);
}

.checkbox-field {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.checkbox-field input[type="checkbox"] {
    width: auto;
    margin: 0;
    flex-shrink: 0;
    margin-top: 4px;
}

.checkbox-field label {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.4;
}

.checkbox-field a {
    color: var(--primary-color);
    text-decoration: none;
}

.checkbox-field a:hover {
    text-decoration: underline;
}

.payment-security {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 1.25rem;
}

.main-footer {
    background: var(--text-main);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-layout {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand h4 {
    font-size: 1.7rem;
    margin-bottom: 1.5rem;
    color: white;
    font-family: var(--font-heading);
}

.footer-brand p {
    color: #d4c4b0;
    line-height: 1.6;
}

.link-column h5 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: white;
}

.link-column ul {
    list-style: none;
}

.link-column ul li {
    margin-bottom: 0.75rem;
}

.link-column ul li a {
    color: #d4c4b0;
    text-decoration: none;
    transition: var(--transition-base);
}

.link-column ul li a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #6b4423;
    padding-top: 2rem;
    text-align: center;
    color: #d4c4b0;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .menu-trigger {
        display: flex;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-message h1 {
        font-size: 3rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .chord-gallery {
        grid-template-columns: 1fr;
    }
    
    .curriculum-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .pattern-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .registration-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .trust-badges {
        justify-content: center;
        text-align: center;
    }
    
    .showcase-intro h2,
    .curriculum-content h2,
    .demo-title,
    .testimonial-heading,
    .examples-heading,
    .program-details h2 {
        font-size: 2.5rem;
    }
    
    .credentials-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .song-showcase {
        grid-template-columns: 1fr;
    }
    
    .benefits-matrix {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 480px) {
    .content-container {
        padding: 0 20px;
    }
    
    .hero-message h1 {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.2rem;
    }
    
    .primary-btn,
    .secondary-btn {
        padding: 18px 32px;
        font-size: 1rem;
    }
    
    .registration-form-container {
        padding: 3rem;
    }
    
    .chord-info {
        padding: 2rem;
    }
    
    .pattern-card {
        padding: 2.5rem;
    }
    
    .testimonial-panel {
        padding: 3rem;
    }
}