body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    z-index: 50;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
}

.logo {
    height: 64px;
}

@media (min-width: 768px) {
    .logo {
        height: 96px;
    }
}

/* Hero Section */
.hero {
    padding: 112px 0 32px;
    background: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);
}

.hero-content {
    text-align: center;
    max-width: 64rem;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: #111827;
    margin: 0 0 8px;
}

.hero-subtitle {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #374151;
}

.hero-description {
    font-size: 1.125rem;
    color: #6b7280;
    margin-bottom: 16px;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: #000000;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.cta-button:hover {
    background: #333333;
}

@media (min-width: 768px) {
    .hero {
        padding: 128px 0 48px;
    }

    .hero-title {
        font-size: 4rem;
    }

    .hero-subtitle {
        font-size: 2.5rem;
    }
}

/* Features Section */
.features {
    padding: 32px 0;
    background: white;
}

.features-title {
    text-align: center;
    font-size: 1.875rem;
    font-weight: 700;
    margin: 0 0 24px;
}

.features-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 64rem;
    margin: 0 auto;
}

.feature-card {
    flex: 1 1 calc(100% - 42px);
    margin: 8px;
    padding: 12px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    transition: border-color 0.2s;
}

@media (min-width: 768px) {
    .feature-card {
        flex: 1 1 calc(50% - 42px);
        max-width: calc(50% - 42px);
    }
}

.feature-card:hover {
    border-color: #0e73ba;
}

.feature-icon {
    width: 24px;
    height: 24px;
    color: #0e73ba;
    margin-bottom: 8px;
}

.feature-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.feature-description {
    font-size: 0.875rem;
    color: #6b7280;
}

/* About Section */
.about {
    padding: 32px 0;
    background: #f9fafb;
}

.about-heading {
    text-align: center;
    font-size: 1.875rem;
    font-weight: 700;
    margin: 0 0 16px;
}

.about-intro {
    text-align: center;
    color: #6b7280;
    margin: 0 auto 24px;
    max-width: 64rem;
    margin-left: auto;
    margin-right: auto;
}

.about-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 64rem;
    margin: 0 auto;
}

.about-card {
    flex: 1 1 calc(100% - 42px);
    margin: 8px;
    text-align: center;
    background: white;
    padding: 12px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

@media (min-width: 768px) {
    .about-card {
        flex: 1 1 calc(33.333% - 42px);
        max-width: calc(33.333% - 42px);
    }
}

.about-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0 0 4px;
}

.about-card-description {
    font-size: 0.875rem;
    color: #6b7280;
}

/* Footer */
footer {
    background: #111827;
    color: white;
    height: 100px;
}

footer .container {
    height: 100%;
    display: flex;
    align-items: center;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 64rem;
    margin: 0 auto;
    gap: 24px;
}

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

.footer-brand-copy {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    height: 48px;
    width: 180px;
    filter: brightness(0) invert(1);
    object-fit: contain;
}

.footer-contact {
    color: #9ca3af;
    margin: 0;
    font-size: 0.875rem;
}

.footer-contact a {
    color: #9ca3af;
    text-decoration: none;
}

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

.footer-legal {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

.footer-legal-title {
    font-weight: 600;
    margin: 0;
}

.footer-legal-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-legal-item {
    margin: 0;
}

.footer-legal-link {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-legal-link:hover {
    color: white;
}

.footer-bottom {
    color: #9ca3af;
    font-size: 0.875rem;
    text-align: right;
}

@media (max-width: 767px) {
    footer {
        height: auto;
        padding: 24px 0;
    }

    footer .container {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }

    .footer-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-brand {
        align-items: flex-start;
    }

    .footer-logo {
        height: 40px;
        width: 160px;
    }

    .footer-bottom {
        text-align: left;
    }
}