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

:root {
    --color-primary: #0A1929;
    --color-accent: #00D4FF;
    --color-secondary: #64748B;
    --color-success: #10B981;
    --color-bg: #F8FAFC;
    --color-bg-dark: #0F172A;
    --color-white: #FFFFFF;
    --color-gray-100: #F1F5F9;
    --color-gray-200: #E2E8F0;
    --color-gray-700: #334155;
    --color-gray-900: #0F172A;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--color-gray-700);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-gray-200);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: color 0.2s;
}

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

/* Hero Section */
.hero {
    padding: 160px 0 120px;
    background: linear-gradient(135deg, #0A1929 0%, #1E293B 100%);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(0, 212, 255, 0.1), transparent);
}

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

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: 24px;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

.gradient-text {
    background: linear-gradient(135deg, #00D4FF 0%, #10B981 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 48px;
    max-width: 600px;
}

.hero-stats {
    display: flex;
    gap: 64px;
}

.stat {
    text-align: left;
}

.stat-value {
    font-size: 48px;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* Section Styles */
.section {
    padding: 100px 0;
}

.section-dark {
    background: var(--color-bg-dark);
    color: var(--color-white);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -1px;
    color: var(--color-primary);
}

.section-dark .section-header h2 {
    color: var(--color-white);
}

.section-header p {
    font-size: 20px;
    color: var(--color-secondary);
}

.section-dark .section-header p {
    color: rgba(255, 255, 255, 0.7);
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.about-card {
    background: var(--color-white);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--color-gray-200);
    transition: transform 0.2s, box-shadow 0.2s;
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.card-icon {
    font-size: 48px;
    margin-bottom: 24px;
}

.about-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--color-primary);
}

.about-card p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-secondary);
}

/* Technology Stack */
.tech-stack {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.tech-layer {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 48px;
    position: relative;
}

.layer-badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(0, 212, 255, 0.15);
    border-radius: 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.tech-layer h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-white);
}

.layer-description {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 32px;
}

.layer-features {
    list-style: none;
    margin-bottom: 32px;
}

.layer-features li {
    padding: 12px 0;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    gap: 12px;
}

.feature-icon {
    font-size: 20px;
}

.layer-status {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.status-badge {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    width: fit-content;
}

.status-stable {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-evolving {
    background: rgba(0, 212, 255, 0.15);
    color: var(--color-accent);
    border: 1px solid rgba(0, 212, 255, 0.3);
}

.performance-metric {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 500;
}

.layer-execution {
    border-left: 3px solid var(--color-success);
}

.layer-ai {
    border-left: 3px solid var(--color-accent);
}

/* Performance Section */
.chart-container {
    background: var(--color-white);
    border-radius: 20px;
    padding: 48px;
    margin-bottom: 48px;
    border: 1px solid var(--color-gray-200);
}

.chart-placeholder {
    width: 100%;
}

.chart-caption {
    text-align: center;
    margin-top: 24px;
    font-size: 14px;
    color: var(--color-secondary);
    font-weight: 500;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.metric-card {
    background: var(--color-white);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--color-gray-200);
    text-align: center;
}

.metric-title {
    font-size: 14px;
    color: var(--color-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.metric-value {
    font-size: 36px;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -1px;
}

/* Contact Section */
.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-info h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--color-white);
}

.contact-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 48px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 32px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-icon {
    font-size: 32px;
}

.contact-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.contact-value {
    font-size: 20px;
    color: var(--color-white);
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--color-primary);
    padding: 48px 0;
    color: rgba(255, 255, 255, 0.6);
}

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

.footer-logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-white);
}

.footer-text {
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 40px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 32px;
    }

    .about-grid,
    .tech-stack,
    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }

    .section-header h2 {
        font-size: 32px;
    }
}