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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

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

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

/* Header */
.header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 16px 0;
}

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

.logo {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.logo span {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

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

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

.header-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

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

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

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

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

.btn-small {
    padding: 8px 16px;
    font-size: 14px;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0e7ff 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-title {
    font-size: 72px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 32px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    opacity: 0.3;
    z-index: 0;
}

.hero-shapes {
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 400 400"><circle cx="200" cy="200" r="150" fill="none" stroke="%236366f1" stroke-width="2" opacity="0.3"/><circle cx="200" cy="200" r="100" fill="none" stroke="%238b5cf6" stroke-width="2" opacity="0.3"/><circle cx="200" cy="200" r="50" fill="%236366f1" opacity="0.2"/></svg>') no-repeat center;
    background-size: contain;
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 20px;
    text-align: center;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 64px;
    line-height: 1.6;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.feature-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-primary {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.badge-info {
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent-color);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

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

.feature-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.spec {
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.feature-description {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.feature-actions {
    display: flex;
    gap: 12px;
}

/* Experience Section */
.experience {
    background: var(--bg-secondary);
}

.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 48px;
    margin-top: 64px;
}

.experience-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.experience-card h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
}

.experience-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.experience-image {
    margin-top: 32px;
    height: 300px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mockup-interface {
    width: 90%;
    height: 90%;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    padding: 16px;
    display: flex;
    flex-direction: column;
}

.mockup-header {
    height: 40px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    margin-bottom: 16px;
}

.mockup-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mockup-chat {
    height: 60px;
    background: var(--bg-tertiary);
    border-radius: 8px;
}

.api-features {
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.api-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.api-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 12px;
    padding: 10px;
}

.api-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--primary-color);
    transition: all 0.3s ease;
}

.api-feature:hover .api-icon svg {
    stroke: var(--secondary-color);
    transform: scale(1.1);
}

.api-feature:hover .api-icon {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.15));
    transform: translateY(-2px);
}

.api-feature h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.api-feature p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Pricing Section */
.pricing {
    background: var(--bg-primary);
}

.pricing-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.tab-btn {
    padding: 12px 32px;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.pricing-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    position: relative;
    transition: all 0.3s;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.badge-popular {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 4px 16px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.price {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 24px;
}

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

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li::before {
    content: '✓';
    color: var(--success-color);
    font-weight: 700;
    margin-right: 8px;
}

/* Scenarios Section */
.scenarios {
    background: var(--bg-secondary);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-top: 64px;
}

.scenario-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.scenario-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.scenario-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 16px;
    padding: 16px;
}

.scenario-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--primary-color);
    transition: all 0.3s ease;
}

.scenario-card:hover .scenario-icon svg {
    stroke: var(--secondary-color);
    transform: scale(1.1);
}

.scenario-card:hover .scenario-icon {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.15));
    transform: translateY(-4px);
}

.scenario-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

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

.scenarios-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 48px;
}

/* Security Section */
.security {
    background: var(--bg-primary);
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 64px;
}

.security-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s;
}

.security-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.security-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 16px;
    padding: 16px;
}

.security-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--primary-color);
    transition: all 0.3s ease;
}

.security-card:hover .security-icon svg {
    stroke: var(--secondary-color);
    transform: scale(1.1);
}

.security-card:hover .security-icon {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.15));
    transform: translateY(-4px);
}

.security-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.security-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.6;
}

.security-visual {
    height: 120px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 16px;
}

.encryption-flow,
.isolation-flow,
.access-flow,
.audit-flow {
    width: 80%;
    height: 60%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    opacity: 0.3;
}

/* Capabilities Section */
.capabilities {
    background: var(--bg-secondary);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 48px;
    margin-top: 64px;
}

.capability-item {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.capability-visual {
    height: 200px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dashboard-mockup,
.scheduling-mockup,
.engine-mockup,
.tools-mockup {
    width: 80%;
    height: 80%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 8px;
    opacity: 0.2;
}

.capability-item h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.capability-item ul {
    list-style: none;
    color: var(--text-secondary);
}

.capability-item li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
}

.capability-item li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 64px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px;
    margin-bottom: 48px;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
}

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

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-section a:hover {
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 16px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: flex;
    gap: 16px;
    align-items: center;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}

.footer-links a:hover {
    color: white;
}

.footer-links span {
    color: rgba(255, 255, 255, 0.3);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 48px;
    }

    .hero-subtitle {
        font-size: 24px;
    }

    .section-title {
        font-size: 36px;
    }

    .nav {
        display: none;
    }

    .experience-grid,
    .capabilities-grid {
        grid-template-columns: 1fr;
    }

    .pricing-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 80px 0 40px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn-large {
        width: 100%;
    }

    section {
        padding: 48px 0;
    }
}