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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #64748b;
    --text-color: #1e293b;
    --text-light: #475569;
    --bg-color: #ffffff;
    --bg-gray: #f8fafc;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 3rem 0;
    text-align: center;
}

header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.tagline {
    font-size: 1.25rem;
    opacity: 0.95;
}

/* Main Content */
main {
    padding: 3rem 0;
}

section {
    margin-bottom: 4rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    font-weight: 700;
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
    font-weight: 600;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 2rem 0;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto 2rem;
}

/* Buttons */
.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 1rem;
}

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

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

.btn-secondary {
    background-color: var(--bg-gray);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background: var(--bg-gray);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

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

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Steps */
.steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2rem;
}

.step {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 3rem;
    height: 3rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--text-light);
}

/* Detection Table */
.detection {
    background: var(--bg-gray);
    padding: 2rem;
    border-radius: 1rem;
}

.detection-table {
    width: 100%;
    margin-top: 1.5rem;
    border-collapse: collapse;
    background: white;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.detection-table th,
.detection-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.detection-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
}

.detection-table tr:last-child td {
    border-bottom: none;
}

.detection-table tr:hover {
    background-color: var(--bg-gray);
}

/* Lists */
ul, ol {
    margin-left: 2rem;
    margin-top: 1rem;
}

li {
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

li strong {
    color: var(--text-color);
}

ul ul {
    margin-top: 0.5rem;
}

/* Tech Stack */
.tech-stack ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    list-style: none;
    margin-left: 0;
}

.tech-stack li {
    background: var(--bg-gray);
    padding: 1rem;
    border-radius: 0.5rem;
    border-left: 4px solid var(--primary-color);
}

/* Requirements */
.requirements {
    background: var(--bg-gray);
    padding: 2rem;
    border-radius: 1rem;
}

/* Installation */
.installation ol {
    counter-reset: step-counter;
    list-style: none;
    margin-left: 0;
}

.installation li {
    counter-increment: step-counter;
    padding: 1rem 1rem 1rem 3rem;
    position: relative;
    background: var(--bg-gray);
    margin-bottom: 1rem;
    border-radius: 0.5rem;
}

.installation li::before {
    content: counter(step-counter);
    position: absolute;
    left: 1rem;
    top: 1rem;
    width: 1.5rem;
    height: 1.5rem;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

/* Open Source Section */
.github-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

/* Roadmap */
.roadmap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.roadmap-item {
    background: var(--bg-gray);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    border: 2px solid var(--border-color);
}

.roadmap-item.completed {
    border-color: var(--success-color);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, var(--bg-gray) 100%);
}

.roadmap-item.planned {
    opacity: 0.7;
}

.roadmap-item h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.roadmap-item.completed h3 {
    color: var(--success-color);
}

/* Footer */
footer {
    background-color: var(--text-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
    margin-top: 4rem;
}

footer p {
    margin-bottom: 0.5rem;
}

footer a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

footer a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* Links */
a {
    color: var(--primary-color);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-dark);
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .btn,
    .feature-card,
    a,
    footer a {
        transition: none;
    }

    .btn-primary:hover,
    .btn-secondary:hover,
    .feature-card:hover {
        transform: none;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    header h1 {
        font-size: 2rem;
    }

    .tagline {
        font-size: 1rem;
    }

    .hero h2 {
        font-size: 1.75rem;
    }

    .hero p {
        font-size: 1rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .step {
        flex-direction: column;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .detection-table {
        font-size: 0.875rem;
    }

    .detection-table th,
    .detection-table td {
        padding: 0.75rem;
    }

    .tech-stack ul {
        grid-template-columns: 1fr;
    }

    .roadmap-grid {
        grid-template-columns: 1fr;
    }
}