/* WCAG Level A Compliant Styles */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* WCAG 1.4.4 - Text can be resized up to 200% */
html {
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #f5f5f5;
    background-color: #0a0a0a;
}

/* WCAG 2.4.1 - Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #f5f5f5;
    color: #0a0a0a;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 10;
}

/* Header and Navigation */
header {
    background-color: #0a0a0a;
    color: #ffffff;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

/* Logo with Icon */
.logo {
    text-decoration: none;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    position: relative;
    width: 50px;
    height: 50px;
}

.logo-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    background-color: transparent;
    border: 3px solid #ffffff;
    border-radius: 50%;
}

.logo-node {
    position: absolute;
    width: 12px;
    height: 12px;
    background-color: transparent;
    border: 2px solid #ffffff;
    border-radius: 50%;
}

.logo-node-1 {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.logo-node-1::before {
    content: '';
    position: absolute;
    width: 2px;
    height: 13px;
    background-color: #ffffff;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
}

.logo-node-2 {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.logo-node-2::before {
    content: '';
    position: absolute;
    width: 2px;
    height: 13px;
    background-color: #ffffff;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
}

.logo-node-3 {
    right: 0;
    top: 50%;
    transform: translateY(-50%);
}

.logo-node-3::before {
    content: '';
    position: absolute;
    width: 13px;
    height: 2px;
    background-color: #ffffff;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

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

.nav-menu a {
    color: #ffffff;
    text-decoration: none;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

/* WCAG 2.4.7 - Focus visible indicator */
.nav-menu a:hover,
.nav-menu a:focus {
    border-bottom-color: #ffffff;
    outline: none;
}

.nav-menu a:focus {
    outline: 2px solid #ffffff;
    outline-offset: 4px;
}

/* Hero Section */
.hero {
    background-color: #0a0a0a;
    color: #ffffff;
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 500px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.3;
}

.orbit-container {
    position: absolute;
    width: 500px;
    height: 500px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.central-node {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background-color: transparent;
    border: 4px solid rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    z-index: 2;
}

.pulse-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: pulse 3s ease-out infinite;
}

.pulse-ring-2 {
    animation-delay: 1.5s;
}

@keyframes pulse {
    0% {
        width: 120px;
        height: 120px;
        opacity: 1;
    }
    100% {
        width: 300px;
        height: 300px;
        opacity: 0;
    }
}

.satellite-node {
    position: absolute;
    width: 60px;
    height: 60px;
    background-color: transparent;
    border: 3px solid rgba(255, 255, 255, 0.6);
    border-radius: 50%;
}

.sat-1 {
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.sat-1::before {
    content: '';
    position: absolute;
    width: 3px;
    height: 140px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.1));
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
}

.sat-2 {
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.sat-2::before {
    content: '';
    position: absolute;
    width: 3px;
    height: 140px;
    background: linear-gradient(to top, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.1));
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
}

.sat-3 {
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.sat-3::before {
    content: '';
    position: absolute;
    width: 140px;
    height: 3px;
    background: linear-gradient(to left, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.1));
    top: 50%;
    right: 60px;
    transform: translateY(-50%);
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #ffffff;
}

.hero-text {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

/* Call to Action Button */
.cta-button {
    display: inline-block;
    background-color: #ffffff;
    color: #0a0a0a;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.125rem;
    transition: all 0.3s ease;
    border: 2px solid #ffffff;
}

.cta-button:hover {
    background-color: transparent;
    color: #ffffff;
}

/* WCAG 2.4.7 - Focus indicator for interactive elements */
.cta-button:focus {
    outline: 2px solid #ffffff;
    outline-offset: 4px;
}

/* Sections */
section {
    padding: 5rem 0;
}

section h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: #ffffff;
    font-weight: 700;
}

.section-intro {
    text-align: center;
    font-size: 1.125rem;
    margin-bottom: 3rem;
    color: rgba(255, 255, 255, 0.8);
}

/* Priority Framework Section */
.priority-framework {
    background-color: #0a0a0a;
    position: relative;
}

.priority-framework::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.framework-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.framework-card {
    background-color: rgba(255, 255, 255, 0.03);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    transition: all 0.3s ease;
}

.framework-card:hover {
    border-color: rgba(255, 255, 255, 0.3);
    background-color: rgba(255, 255, 255, 0.05);
    transform: translateY(-4px);
}

.card-icon {
    margin: 0 auto 1.5rem;
    width: 80px;
    height: 80px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-circle {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    position: relative;
}

.icon-circle::before {
    content: '';
    position: absolute;
    width: 30px;
    height: 30px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

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

.framework-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
    line-height: 1.6;
}

/* Problem Solving Section */
.problem-solving {
    background-color: #0f0f0f;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.problem-card {
    background-color: rgba(255, 255, 255, 0.02);
    padding: 3rem 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    position: relative;
}

.problem-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 2rem;
    position: relative;
}

.node-cluster {
    position: relative;
    width: 100px;
    height: 100px;
}

.cluster-node {
    position: absolute;
    width: 30px;
    height: 30px;
    background-color: transparent;
    border: 2px solid rgba(255, 255, 255, 0.7);
    border-radius: 50%;
}

.cluster-node:nth-child(1) {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.cluster-node:nth-child(2) {
    bottom: 0;
    left: 0;
}

.cluster-node:nth-child(3) {
    bottom: 0;
    right: 0;
}

.connection-line {
    position: absolute;
    width: 60%;
    height: 60%;
    top: 20%;
    left: 20%;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
}

.problem-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

.problem-card p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

/* How It Works Section */
.how-it-works {
    background-color: #0a0a0a;
    position: relative;
}

.how-it-works::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.how-it-works p {
    font-size: 1.25rem;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

/* Executive Experience Section */
.executive-experience {
    background-color: #0f0f0f;
}

.exec-feature,
.exec-benefits {
    margin-top: 3rem;
    padding: 2.5rem;
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.exec-feature h3,
.exec-benefits h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: #ffffff;
}

.exec-feature h4 {
    font-size: 1.25rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.exec-feature p,
.exec-benefits p {
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

/* WCAG 1.3.1 - Lists must use proper semantic markup */
.exec-feature ul,
.exec-benefits ol {
    margin-left: 2rem;
    margin-top: 1rem;
}

.exec-feature li,
.exec-benefits li {
    margin-bottom: 0.75rem;
    color: rgba(255, 255, 255, 0.8);
}

.exec-feature li strong {
    color: #ffffff;
}

/* Contact Form Section */
.contact {
    background-color: #0a0a0a;
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.contact-form {
    max-width: 600px;
    margin: 2rem auto 0;
}

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

/* WCAG 3.3.2 - Labels must be properly associated with form controls */
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #ffffff;
}

.required {
    color: #ff6b6b;
    font-weight: bold;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    color: #ffffff;
    transition: all 0.3s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

/* WCAG 2.4.7 - Focus indicator for form elements */
.form-group input:focus,
.form-group textarea:focus {
    outline: 2px solid rgba(255, 255, 255, 0.6);
    outline-offset: 2px;
    border-color: rgba(255, 255, 255, 0.4);
    background-color: rgba(255, 255, 255, 0.08);
}

.submit-button {
    background-color: #ffffff;
    color: #0a0a0a;
    padding: 1rem 2.5rem;
    border: 2px solid #ffffff;
    border-radius: 50px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-button:hover {
    background-color: transparent;
    color: #ffffff;
}

.submit-button:focus {
    outline: 2px solid #ffffff;
    outline-offset: 4px;
}

/* Footer */
footer {
    background-color: #0a0a0a;
    color: rgba(255, 255, 255, 0.6);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer p {
    margin: 0;
}

/* Responsive Design - WCAG 1.4.10 - Content can reflow */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 1rem;
    }
    
    .logo-icon {
        width: 40px;
        height: 40px;
    }
    
    .logo-center {
        width: 20px;
        height: 20px;
    }
    
    .logo-node {
        width: 10px;
        height: 10px;
    }
    
    .orbit-container {
        width: 300px;
        height: 300px;
    }
    
    .central-node {
        width: 80px;
        height: 80px;
    }
    
    .pulse-ring {
        width: 80px;
        height: 80px;
    }
    
    .satellite-node {
        width: 40px;
        height: 40px;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .framework-grid,
    .problems-grid {
        grid-template-columns: 1fr;
    }
    
    section h2 {
        font-size: 2rem;
    }
}

/* High Contrast Support for Accessibility */
@media (prefers-contrast: high) {
    body {
        background-color: #000000;
        color: #ffffff;
    }
    
    .nav-menu a:focus,
    .cta-button:focus,
    input:focus,
    textarea:focus {
        outline-width: 3px;
    }
    
    .framework-card,
    .problem-card,
    .exec-feature,
    .exec-benefits {
        border-color: rgba(255, 255, 255, 0.3);
    }
}