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

:root {
    --primary-color: #5B8FA3;
    --primary-dark: #487183;
    --primary-light: #7BA8BA;
    --secondary-color: #3D5A6C;
    --accent-color: #8BBFD9;
    --text-dark: #1a1a1a;
    --text-medium: #4a4a4a;
    --text-light: #6b7280;
    --bg-light: #f8fafc;
    --bg-lighter: #f1f5f9;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header and Navigation */
header {
    background-color: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

nav {
    padding: 1.25rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    transition: opacity 0.2s;
}

.logo:hover {
    opacity: 0.8;
}

.logo-image {
    height: 48px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-medium);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color 0.2s;
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.nav-links a svg {
    width: 16px;
    height: 16px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

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

.nav-links a:hover svg {
    opacity: 1;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

.github-link {
    padding: 0.5rem 1.25rem;
    background-color: var(--text-dark);
    color: white !important;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.github-link svg {
    opacity: 1 !important;
}

.github-link:hover {
    background-color: var(--primary-color);
    transform: translateY(-1px);
}

.github-link::after {
    display: none;
}

/* Hero Section */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 8rem 0 6rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.15) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background-color: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2rem;
    letter-spacing: 0.05em;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.hero-title .highlight {
    background: linear-gradient(to right, #ffffff, rgba(255, 255, 255, 0.8));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.375rem;
    margin-bottom: 3rem;
    opacity: 0.95;
    line-height: 1.6;
    font-weight: 400;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s;
    border: 2px solid transparent;
    cursor: pointer;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--bg-white);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

/* Sections */
section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-dark);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* About Section */
.about {
    background-color: var(--bg-white);
}

.about-grid {
    max-width: 1000px;
    margin: 0 auto;
}

.about-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.about-card {
    background-color: var(--bg-light);
    padding: 2.5rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.about-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.about-card p {
    color: var(--text-light);
    line-height: 1.7;
    font-size: 1rem;
}

/* Use Cases Section */
.use-cases {
    background-color: var(--bg-lighter);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.use-case-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s;
}

.use-case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

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

.use-case-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

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

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

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

.feature-card {
    background-color: var(--bg-white);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

/* Governance Section */
.governance {
    background-color: var(--bg-lighter);
}

.governance-content {
    max-width: 1000px;
    margin: 0 auto;
}

.governance-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.governance-card {
    background-color: var(--bg-white);
    padding: 2.5rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.governance-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.highlight-card {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, rgba(91, 143, 163, 0.05) 0%, rgba(61, 90, 108, 0.05) 100%);
    border-color: var(--primary-color);
}

.governance-card .card-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.governance-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.governance-card p {
    color: var(--text-light);
    line-height: 1.7;
    font-size: 1rem;
}

.governance-card strong {
    color: var(--primary-color);
    font-weight: 600;
}

.join-maintenance {
    margin-top: 2rem;
}

.join-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 3rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.join-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.join-card p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    line-height: 1.6;
}

.join-card .btn {
    background-color: white;
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.join-card .btn:hover {
    background-color: var(--bg-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Get Started Section */
.get-started {
    background: linear-gradient(to bottom, var(--bg-lighter), var(--bg-white));
}

.steps-container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.step-card {
    display: flex;
    gap: 2rem;
    background-color: var(--bg-white);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.step-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.step-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    opacity: 0.3;
    line-height: 1;
    min-width: 80px;
}

.step-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.step-content p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 1.25rem;
    line-height: 1.7;
}

.step-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}

.step-link:hover {
    color: var(--primary-dark);
    transform: translateX(4px);
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
}

.cta-content {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.cta h2 {
    font-size: 3rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    line-height: 1.6;
}

.cta-note {
    font-size: 0.875rem;
    margin-top: 1.5rem;
    margin-bottom: 0;
    opacity: 0.8;
    letter-spacing: 0.05em;
}

/* Footer */
footer {
    background-color: var(--text-dark);
    color: var(--bg-light);
    padding: 3rem 0;
    text-align: center;
}

footer p {
    margin-bottom: 0.75rem;
    opacity: 0.9;
    font-size: 0.9375rem;
}

footer p:last-child {
    margin-bottom: 0;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .section-header h2 {
        font-size: 2.25rem;
    }

    .hero-stats {
        gap: 2rem;
    }

    .step-card {
        flex-direction: column;
        gap: 1.5rem;
    }

    .step-number {
        min-width: auto;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 5rem 0 4rem;
    }

    .hero-title {
        font-size: 2.25rem;
    }

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

    section {
        padding: 4rem 0;
    }

    .section-header h2 {
        font-size: 1.875rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .nav-links {
        gap: 1.25rem;
        font-size: 0.875rem;
    }

    .nav-links a {
        font-size: 0.8125rem;
    }

    .nav-links a svg {
        width: 14px;
        height: 14px;
    }

    .github-link {
        padding: 0.4rem 1rem;
    }

    .logo-text {
        font-size: 1.25rem;
    }

    .logo-image {
        height: 40px;
    }

    .features-grid,
    .use-cases-grid {
        grid-template-columns: 1fr;
    }

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

    .btn {
        width: 100%;
        max-width: 320px;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }

    .cta h2 {
        font-size: 2rem;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

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

    .section-header h2 {
        font-size: 1.5rem;
    }

    .nav-links {
        display: none;
    }
}