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

:root {
    --yellow-primary: #FFD700;
    --yellow-bright: #FFEB3B;
    --yellow-dark: #FFC107;
    --black-primary: #000000;
    --black-dark: #0a0a0a;
    --black-light: #1a1a1a;
    --gray-dark: #2a2a2a;
    --gray-medium: #3a3a3a;
    --text-light: #cccccc;
    --text-white: #ffffff;
    --bg-black: #000000;
    --bg-dark: #0f0f0f;
    --border-yellow: rgba(255, 215, 0, 0.3);
    --shadow-yellow: 0 0 20px rgba(255, 215, 0, 0.3);
    --shadow-yellow-lg: 0 0 40px rgba(255, 215, 0, 0.5);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-white);
    background-color: var(--bg-black);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 215, 0, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 215, 0, 0.05) 0%, transparent 50%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(255, 215, 0, 0.02) 2px,
            rgba(255, 215, 0, 0.02) 4px
        );
    background-attachment: fixed;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 50px,
            rgba(255, 215, 0, 0.01) 50px,
            rgba(255, 215, 0, 0.01) 51px
        );
    pointer-events: none;
    z-index: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

main {
    position: relative;
    z-index: 1;
}

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

.navbar {
    padding: 1rem 0;
}

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

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--yellow-primary);
    text-decoration: none;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
    letter-spacing: 1px;
    position: relative;
}

.logo a::after {
    content: '₿';
    margin-left: 0.5rem;
    color: var(--yellow-bright);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

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

.nav-menu a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--yellow-primary);
    transition: width 0.3s ease;
    box-shadow: 0 0 10px var(--yellow-primary);
}

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

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--black-dark) 0%, var(--black-light) 50%, var(--black-dark) 100%);
    color: var(--text-white);
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 2px,
            rgba(255, 215, 0, 0.03) 2px,
            rgba(255, 215, 0, 0.03) 4px
        );
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--yellow-primary) 0%, var(--yellow-bright) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(255, 215, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--yellow-primary);
    color: var(--black-primary);
    font-weight: 700;
    box-shadow: var(--shadow-yellow);
}

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

.btn-secondary {
    background: transparent;
    color: var(--yellow-primary);
    border: 2px solid var(--yellow-primary);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

.btn-secondary:hover {
    background: var(--yellow-primary);
    color: var(--black-primary);
    box-shadow: var(--shadow-yellow-lg);
}

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

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

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--yellow-primary), transparent);
    box-shadow: 0 0 20px var(--yellow-primary);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--yellow-primary);
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

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

.feature-card {
    background: var(--black-light);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--gray-dark);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 215, 0, 0.1), transparent);
    transition: left 0.5s ease;
}

.feature-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover::after {
    opacity: 1;
}

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

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

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--yellow-primary);
}

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

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

.benefits::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--yellow-primary), transparent);
    box-shadow: 0 0 20px var(--yellow-primary);
}

.benefits-content {
    max-width: 800px;
    margin: 0 auto;
}

.benefits-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--yellow-primary);
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.benefits-text > p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.benefits-list {
    list-style: none;
    font-size: 1.125rem;
}

.benefits-list li {
    padding: 0.75rem 0;
    color: var(--text-light);
}

/* About Section */
.about {
    padding: 5rem 0;
    background: var(--bg-black);
}

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

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--yellow-primary);
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.about-content p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* Use Cases Section */
.use-cases {
    padding: 5rem 0;
    background: var(--bg-dark);
}

.use-cases h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--yellow-primary);
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.section-intro {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.features .section-intro {
    margin-bottom: 3rem;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.use-case-item {
    background: var(--black-light);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--gray-dark);
    transition: all 0.3s ease;
}

.use-case-item:hover {
    border-color: var(--yellow-primary);
    box-shadow: var(--shadow-yellow);
    transform: translateY(-3px);
}

.use-case-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--yellow-primary);
}

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

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--black-light) 0%, var(--black-dark) 100%);
    color: var(--text-white);
    padding: 5rem 0;
    text-align: center;
    position: relative;
    border-top: 1px solid var(--border-yellow);
    border-bottom: 1px solid var(--border-yellow);
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--yellow-primary);
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

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


/* Page Header (for Privacy/Terms) */
.page-header {
    background: linear-gradient(135deg, var(--black-dark) 0%, var(--black-light) 100%);
    color: var(--text-white);
    padding: 4rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-yellow);
    position: relative;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(255, 215, 0, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.page-header .container {
    position: relative;
    z-index: 1;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--yellow-primary);
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.page-subtitle {
    opacity: 0.9;
    font-size: 1rem;
}

/* Content Page */
.content-page {
    padding: 3rem 0;
    background: var(--bg-black);
}

.legal-content {
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.8;
}

.legal-content h2 {
    font-size: 1.75rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--yellow-primary);
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-yellow);
}

.legal-content h2:first-child {
    margin-top: 0;
}

.legal-content p {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-size: 1rem;
}

.legal-content ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.legal-content li {
    margin-bottom: 0.75rem;
    color: var(--text-light);
}

.legal-content strong {
    color: var(--yellow-primary);
    font-weight: 600;
}

/* Footer */
footer {
    background: var(--black-dark);
    color: var(--text-white);
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
    border-top: 1px solid var(--border-yellow);
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--yellow-primary), transparent);
    box-shadow: 0 0 20px var(--yellow-primary);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: var(--yellow-primary);
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

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

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--yellow-primary);
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 215, 0, 0.2);
    color: rgba(255, 255, 255, 0.5);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

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

    .features h2,
    .benefits-text h2,
    .cta-section h2 {
        font-size: 2rem;
    }

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

    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }

    .legal-content {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 4rem 0;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

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

    .btn {
        width: 100%;
        max-width: 300px;
    }
}