:root {
    --primary-color: #4338CA;
    --secondary-color: #E53E3E;
    --background-color: #FEFCF8;
    --text-color: #1F2937;
    --text-light: #6B7280;
    --border-color: #E5E7EB;
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --spacing-unit: 8px;
    --border-radius: 8px;
    --max-width: 1200px;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    font-weight: 400;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }

p {
    margin-bottom: calc(var(--spacing-unit) * 2);
    color: var(--text-light);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #3730A3;
}

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

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

.btn-text {
    background-color: transparent;
    color: var(--text-light);
    border: none;
    padding: calc(var(--spacing-unit) * 1) calc(var(--spacing-unit) * 2);
}

.btn-text:hover {
    color: var(--primary-color);
    background-color: var(--gray-50);
}

/* Centered Sections */
.centered-section {
    text-align: center;
}

.centered-section .container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.centered-section .hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
    align-items: center;
    text-align: left;
}

.centered-section .support-content,
.centered-section .tech-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
    align-items: center;
    text-align: left;
}

/* Image Placeholders */
.image-placeholder {
    background-color: var(--gray-100);
    border: 2px dashed var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 0.875rem;
    height: 100%;
    width: 100%;
}

/* Header/Logo */
.logo-section {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit) * 2);
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
}

/* Hero Section */
.hero {
    padding: calc(var(--spacing-unit) * 12) 0 calc(var(--spacing-unit) * 10);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
    align-items: center;
}

.hero-content h1 {
    color: var(--text-color);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.hero-content p {
    font-size: 1.125rem;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.hero-actions {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
}

.hero-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
}

/* Features Section */
.features {
    padding: calc(var(--spacing-unit) * 10) 0;
    background-color: var(--white);
}

.features h2 {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 8);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
}

.feature-card {
    text-align: center;
    padding: calc(var(--spacing-unit) * 4);
}

.feature-icon {
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.feature-card h3 {
    color: var(--text-color);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

/* How It Works Section */
.how-it-works {
    padding: calc(var(--spacing-unit) * 10) 0;
}

.how-it-works h2 {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 8);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: calc(var(--spacing-unit) * 6);
}

.step {
    text-align: center;
    padding: calc(var(--spacing-unit) * 4);
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--secondary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0 auto calc(var(--spacing-unit) * 3);
}

.step h3 {
    color: var(--text-color);
}

/* Programs Section */
.programs {
    padding: calc(var(--spacing-unit) * 10) 0;
    background-color: var(--white);
}

.programs h2 {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 8);
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
}

.program-card {
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    padding: calc(var(--spacing-unit) * 4);
    border: 2px solid var(--border-color);
}

.program-card.featured {
    border-color: var(--primary-color);
    position: relative;
}

.program-card.featured::before {
    content: "Most Popular";
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: var(--white);
    padding: calc(var(--spacing-unit) * 1) calc(var(--spacing-unit) * 2);
    font-size: 0.75rem;
    border-radius: var(--border-radius);
}

.program-image {
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.program-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius);
}

.program-card h3 {
    color: var(--text-color);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.program-price {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

/* Coach Support Section */
.coach-support {
    padding: calc(var(--spacing-unit) * 10) 0;
}

.support-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
    align-items: center;
}

.support-text ul {
    list-style: none;
}

.support-text li {
    padding: calc(var(--spacing-unit) * 1) 0;
    position: relative;
    padding-left: calc(var(--spacing-unit) * 3);
}

.support-text li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

.support-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
}

/* Technology Section */
.technology {
    padding: calc(var(--spacing-unit) * 10) 0;
    background-color: var(--white);
}

.technology h2 {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 8);
}

.tech-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 8);
    align-items: center;
}

.tech-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
}

.tech-features {
    margin-top: calc(var(--spacing-unit) * 4);
}

.tech-feature {
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.tech-feature strong {
    display: block;
    color: var(--text-color);
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.tech-feature p {
    margin-bottom: 0;
    font-size: 0.875rem;
}

/* Metrics Section */
.metrics {
    padding: calc(var(--spacing-unit) * 10) 0;
}

.metrics h2 {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 8);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
}

.metric-card {
    text-align: center;
    padding: calc(var(--spacing-unit) * 4);
    background-color: var(--white);
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
}

.metric-number {
    font-size: 3rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

/* Testimonials Section */
.testimonials {
    padding: calc(var(--spacing-unit) * 10) 0;
    background-color: var(--white);
}

.testimonials h2 {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 8);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
}

.testimonial-card {
    padding: calc(var(--spacing-unit) * 4);
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
}

.testimonial-image {
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.testimonial-img {
    height: 100px;
    width: 100px;
    object-fit: cover;
    border-radius: 50%;
    margin: 0 auto;
    display: block;
}

.testimonial-card blockquote {
    font-style: italic;
    margin-bottom: calc(var(--spacing-unit) * 3);
    color: var(--text-color);
}

.testimonial-card cite {
    font-weight: 500;
    color: var(--text-light);
}

/* Getting Started Section */
.getting-started {
    padding: calc(var(--spacing-unit) * 10) 0;
    background-color: var(--primary-color);
    color: var(--white);
}

.getting-started h2 {
    color: var(--white);
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.getting-started p {
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
    font-size: 1.125rem;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: calc(var(--spacing-unit) * 2);
}

.getting-started .btn-primary {
    background-color: var(--secondary-color);
}

.getting-started .btn-primary:hover {
    background-color: #DC2626;
}

.getting-started .btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

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

/* Contacts Section */
.contacts {
    padding: calc(var(--spacing-unit) * 10) 0;
}

.contacts h2 {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 8);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: calc(var(--spacing-unit) * 6);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: calc(var(--spacing-unit) * 3);
    padding: calc(var(--spacing-unit) * 4);
    background-color: var(--white);
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
}

.contact-details h3 {
    color: var(--text-color);
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.contact-details a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-details a:hover {
    text-decoration: underline;
}

.contact-details address {
    font-style: normal;
    color: var(--text-light);
}

/* Footer */
.footer {
    background-color: var(--text-color);
    color: var(--white);
    padding: calc(var(--spacing-unit) * 8) 0 calc(var(--spacing-unit) * 4);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: calc(var(--spacing-unit) * 6);
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.footer-section h4 {
    color: var(--white);
    margin-bottom: calc(var(--spacing-unit) * 3);
    font-size: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit) * 2);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.footer-logo .brand-name {
    color: var(--white);
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    margin: 0;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 2);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.875rem;
}

.footer-links a:hover {
    color: var(--white);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 1);
}

.footer-contact p {
    margin: 0;
    font-size: 0.875rem;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.footer-contact a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: calc(var(--spacing-unit) * 3);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 calc(var(--spacing-unit) * 2);
    }
    
    .hero .container,
    .support-content,
    .tech-content {
        grid-template-columns: 1fr;
        gap: calc(var(--spacing-unit) * 4);
    }
    
    .hero-actions,
    .cta-actions {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: calc(var(--spacing-unit) * 4);
        text-align: center;
    }
    
    .footer-links {
        align-items: center;
    }
    
    .centered-section .hero .container,
    .centered-section .support-content,
    .centered-section .tech-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    
    .hero-img,
    .support-img,
    .tech-img {
        height: 300px;
    }
    
    .program-img {
        height: 180px;
    }
}