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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #0B1426;
    color: #FFFFFF;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, #FFFFFF 0%, #06B6D4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #06B6D4;
    border: 2px solid #06B6D4;
}

.btn-secondary:hover {
    background: #06B6D4;
    color: #0B1426;
}

.btn-primary.large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(11, 20, 38, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo h1 {
    font-size: 1.5rem;
    background: linear-gradient(135deg, #FFFFFF 0%, #06B6D4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo .emoji {
    font-size: 1.5rem;
    animation: pulse 2s infinite;
}

.nav-icons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-icon:hover {
    background: rgba(37, 99, 235, 0.2);
    transform: translateY(-2px);
}

.nav-icon img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.placeholder-icon {
    color: #06B6D4;
    font-weight: 600;
    font-size: 0.8rem;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero-title .highlight {
    background: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: #94A3B8;
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-graphic {
    position: relative;
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pulse-circle {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid #2563EB;
    border-radius: 50%;
    animation: pulse-ring 2s infinite;
}

.ai-icon {
    font-size: 4rem;
    z-index: 2;
}

.quark-coin-icon {
    width: 120px;
    height: 120px;
    z-index: 2;
    border-radius: 50%;
    box-shadow: 0 8px 32px rgba(37, 99, 235, 0.3);
}

/* Problem Section */
.problem-section {
    padding: 80px 0;
    background: rgba(255, 255, 255, 0.02);
}

.problem-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.problem-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(37, 99, 235, 0.3);
}

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

.problem-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #06B6D4;
}

.target-audience {
    text-align: center;
}

.target-audience h3 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.audience-tags {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.tag {
    background: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* How It Works Section */
.how-it-works {
    padding: 80px 0;
}

.process-flow {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
}

.process-step {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2rem;
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2563EB 0%, #06B6D4 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-content h3 {
    margin-bottom: 0.5rem;
    color: #06B6D4;
}



.additional-features {
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 12px;
    padding: 2rem;
}

.additional-features h3 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: #06B6D4;
}

.command-examples {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
    font-family: 'Monaco', 'Menlo', monospace;
}

.command-examples code {
    display: block;
    color: #06B6D4;
    margin: 0.5rem 0;
    font-size: 0.9rem;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: rgba(255, 255, 255, 0.02);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(37, 99, 235, 0.3);
}

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

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #06B6D4;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
}

.cta-content {
    text-align: center;
}

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

.cta-content p {
    font-size: 1.1rem;
    color: #94A3B8;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.footer {
    padding: 40px 0 20px;
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-brand h3 {
    color: #06B6D4;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: #94A3B8;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: #94A3B8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #06B6D4;
}

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

.footer-bottom p {
    color: #94A3B8;
    font-size: 0.9rem;
}

/* Animations */
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes pulse-ring {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Mobile Styles (up to 767px) */
@media (max-width: 767px) {
    .hero {
        padding: 80px 0 60px;
    }
    
    .hero-title {
        font-size: 1.8rem;
        margin-bottom: 0.8rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
        line-height: 1.5;
    }
    
    .btn-primary, .btn-secondary {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .btn-primary.large {
        padding: 12px 24px;
        font-size: 1rem;
    }
    
    .hero-cta {
        gap: 0.8rem;
    }
    
    .ai-graphic {
        width: 160px;
        height: 160px;
    }
    
    .quark-coin-icon {
        width: 90px;
        height: 90px;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 1.5rem;
    }
    
    .problem-card, .feature-card {
        padding: 1.5rem;
    }
    
    .problem-card h3, .feature-card h3 {
        font-size: 1.1rem;
    }
    
    .logo h1 {
        font-size: 1.3rem;
    }
    
    .nav-icon {
        width: 36px;
        height: 36px;
    }
    
    .nav-icon img {
        width: 20px;
        height: 20px;
    }
    
    .placeholder-icon {
        font-size: 0.7rem;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .cta-content p {
        font-size: 1rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        gap: 1.5rem;
    }
}

/* Tablet Styles */
@media (min-width: 768px) {
    .container {
        padding: 0 40px;
    }
    
    .hero-content {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .problem-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .process-flow {
        grid-template-columns: 1fr;
        max-width: 800px;
        margin: 0 auto 4rem auto;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        flex-wrap: nowrap;
    }
}

/* Desktop Styles */
@media (min-width: 1024px) {
    .hero-title {
        font-size: 3.5rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .nav-icons {
        gap: 1.5rem;
    }
    
    .nav-icon {
        width: 45px;
        height: 45px;
    }
    
    .nav-icon img {
        width: 28px;
        height: 28px;
    }
}

/* Large Desktop */
@media (min-width: 1200px) {
    .hero-title {
        font-size: 4rem;
    }
    
    .ai-graphic {
        width: 250px;
        height: 250px;
    }
    
    .quark-coin-icon {
        width: 150px;
        height: 150px;
    }
}

/* Pricing Section */
.pricing {
    padding: 80px 0;
}

.pricing-note {
    text-align: center;
    color: #94A3B8;
    margin-bottom: 2rem;
}

.pricing-grid .pricing-card h3 {
    color: #06B6D4;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.sentinel-note {
    font-size: 0.85rem;
    color: #94A3B8;
}