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

:root {
    --primary: #0f1419;
    --secondary: #1a2332;
    --accent: #c85a3a;
    --text: #ffffff;
    --text-muted: #d1d5db;
    --border: #374151;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
    background-color: var(--primary);
    color: var(--text);
    line-height: 1.6;
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 0.3px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Header */
.header {
    background-color: var(--primary);
    border-bottom: 1px solid var(--border);
    padding: 24px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.logo-mark {
    font-size: 28px;
    color: var(--accent);
}

.logo-text {
    color: var(--text);
}

.cta-button-header {
    background-color: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 10px 24px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

.cta-button-header:hover {
    background-color: var(--accent);
    color: var(--primary);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    text-align: center;
}

.hero-headline {
    font-size: 52px;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
    color: var(--text);
}

.hero-subheadline {
    font-size: 20px;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.5;
    font-weight: 400;
}

.cta-button-primary {
    background-color: var(--accent);
    color: #ffffff;
    border: none;
    padding: 16px 48px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

.cta-button-primary:hover {
    background-color: #b34d2e;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(200, 90, 58, 0.2);
}

/* Pain Point Section */
.pain-point {
    padding: 80px 0;
    background-color: var(--secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.pain-point h2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.pain-point p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 800px;
    line-height: 1.7;
}

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
}

.how-it-works h2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 60px;
    text-align: center;
    letter-spacing: -0.5px;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.process-step {
    padding: 40px;
    background-color: var(--secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
}

.step-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 20px;
    line-height: 1;
}

.process-step h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text);
}

.process-step p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 12px;
}

.process-step p:first-of-type {
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 16px;
}

/* Value Proposition Section */
.value-proposition {
    padding: 100px 0;
    background-color: var(--secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.value-proposition h2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 60px;
    text-align: center;
    letter-spacing: -0.5px;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.value-item {
    padding: 40px;
    border: 1px solid var(--border);
    background-color: var(--primary);
    border-radius: 4px;
}

.value-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--accent);
}

.value-item p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Case Study Section */
.case-study {
    padding: 100px 0;
}

.case-study h2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.case-title {
    font-size: 20px;
    font-weight: 400;
    color: var(--text-muted);
    margin-bottom: 60px;
}

.case-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.case-column h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--accent);
}

.case-column p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}

.case-list {
    list-style: none;
    padding: 0;
}

.case-list li {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 12px;
    padding-left: 20px;
    position: relative;
}

.case-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
}

.case-results {
    background-color: var(--secondary);
    padding: 40px;
    border-left: 4px solid var(--accent);
}

.case-results h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--accent);
}

.case-results > p {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.results-list {
    list-style: none;
    padding: 0;
    margin-bottom: 20px;
}

.results-list li {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 12px;
    padding-left: 20px;
    position: relative;
}

.results-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 600;
}

.case-impact {
    font-size: 16px;
    color: var(--accent);
    font-weight: 600;
}

/* Security Section */
.security {
    padding: 100px 0;
    background-color: var(--secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.security h2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 24px;
    text-align: center;
    letter-spacing: -0.5px;
}

.security-intro {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto 60px;
    text-align: center;
    line-height: 1.7;
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 40px;
}

.security-item {
    padding: 32px;
    background-color: var(--primary);
    border: 1px solid var(--border);
    border-radius: 4px;
}

.security-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--accent);
}

.security-item p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Footer CTA Section */
.footer-cta {
    padding: 80px 0;
    text-align: center;
}

.footer-cta h2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.footer-cta p {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 32px;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
    text-align: center;
    background-color: var(--secondary);
    font-size: 14px;
    color: var(--text-muted);
}

.footer p {
    margin-bottom: 8px;
}

.footer a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.footer a:hover {
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }

    .header-content {
        flex-direction: column;
        gap: 16px;
    }

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

    .hero-subheadline {
        font-size: 18px;
    }

    .hero {
        padding: 80px 0 60px;
    }

    .pain-point h2,
    .how-it-works h2,
    .value-proposition h2,
    .case-study h2,
    .security h2,
    .footer-cta h2 {
        font-size: 28px;
    }

    .case-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .process-grid,
    .value-grid,
    .security-grid {
        grid-template-columns: 1fr;
    }

    .cta-button-primary {
        padding: 14px 32px;
        font-size: 14px;
    }
}

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

    .logo {
        gap: 8px;
        font-size: 18px;
    }

    .logo-mark {
        font-size: 22px;
    }

    .cta-button-header {
        padding: 8px 16px;
        font-size: 12px;
    }

    .hero-headline {
        font-size: 28px;
        margin-bottom: 16px;
    }

    .hero-subheadline {
        font-size: 16px;
    }

    .hero {
        padding: 60px 0 40px;
    }

    .pain-point,
    .how-it-works,
    .value-proposition,
    .case-study,
    .security,
    .footer-cta {
        padding: 60px 0;
    }

    .pain-point h2,
    .how-it-works h2,
    .value-proposition h2,
    .case-study h2,
    .security h2,
    .footer-cta h2 {
        font-size: 22px;
        margin-bottom: 32px;
    }

    .cta-button-primary {
        padding: 12px 24px;
        font-size: 13px;
    }
}