:root {
    --primary-color: #fbbf24;
    --primary-dark: #f59e0b;
    --secondary-color: #1f2937;
    --text-dark: #111827;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --max-width: 1200px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --secondary-color: #1f2937;
        --text-dark: #f9fafb;
        --text-light: #d1d5db;
        --bg-light: #1f2937;
        --bg-white: #111827;
        --border-color: #374151;
    }
}

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

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header and Navigation */
header {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    padding: 1rem 0;
}

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

.nav-brand h1 {
    font-size: 1.75rem;
    color: var(--primary-color);
    font-weight: 700;
}

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

.nav-menu a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.cta-button {
    background-color: var(--primary-color);
    color: var(--secondary-color) !important;
    padding: 0.5rem 1.5rem;
    border-radius: 0.375rem;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: var(--primary-dark);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 100%);
    padding: 5rem 0;
    text-align: center;
}

.hero-content h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Buttons */
.button {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 0.375rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.button-primary {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    box-shadow: var(--shadow-md);
}

.button-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.button-secondary {
    background-color: transparent;
    color: var(--text-dark);
    border: 2px solid var(--border-color);
}

.button-secondary:hover {
    background-color: var(--bg-light);
}

.button-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

/* Features Section */
.features {
    padding: 5rem 0;
    background-color: var(--bg-white);
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--bg-light);
    padding: 2rem;
    border-radius: 0.75rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

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

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

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

/* Roles Section */
.roles {
    padding: 5rem 0;
    background-color: var(--bg-light);
}

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

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

.role-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
    transition: box-shadow 0.3s;
}

.role-card:hover {
    box-shadow: var(--shadow-lg);
}

.role-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.role-card h4 {
    color: var(--text-light);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.role-card ul {
    list-style: none;
}

.role-card li {
    padding: 0.5rem 0;
    color: var(--text-dark);
    position: relative;
    padding-left: 1.5rem;
}

.role-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Benefits Section */
.benefits {
    padding: 5rem 0;
    background-color: var(--bg-white);
}

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

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.benefit {
    padding: 1.5rem;
    border-left: 4px solid var(--primary-color);
    background-color: var(--bg-light);
    border-radius: 0.375rem;
}

.benefit h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

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

/* Stats Section */
.stats {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat {
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--bg-white);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
}

/* CTA Section */
.cta {
    padding: 5rem 0;
    background-color: var(--bg-light);
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.cta p {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: var(--bg-white);
    padding: 3rem 0 1rem;
}

@media (prefers-color-scheme: dark) {
    footer {
        color: var(--text-dark);
    }
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.footer-brand p {
    color: inherit;
    opacity: 0.8;
}

.footer-links h4 {
    margin-bottom: 1rem;
    color: inherit;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: inherit;
    opacity: 0.7;
    text-decoration: none;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    opacity: 0.7;
}

@media (prefers-color-scheme: dark) {
    .footer-bottom {
        border-top-color: var(--border-color);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hero-content h2 {
        font-size: 2rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .features-grid,
    .roles-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
}

/* Accessibility */
:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Print Styles */
@media print {
    header,
    footer,
    .cta-actions {
        display: none;
    }

    .container {
        max-width: 100%;
    }
}