body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Arial, Helvetica, sans-serif;
    background: #181c1f;
    color: #e6e6e6;
}

:root {
    --accent: rgb(38, 214, 196);
    --card-bg: #23272a;
    --card-border: rgba(38,214,196,0.18);
}

.header {
    width: 100%;
    background: #181c1f;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2.5rem 0 1.5rem 0;
    border-bottom: 1.5px solid var(--card-border);
}

.logo {
    max-width: 340px;
    width: 100%;
    height: auto;
    display: block;
    filter: drop-shadow(0 2px 16px rgba(38,214,196,0.12));
}

.content.modern {
    max-width: 540px;
    margin: 2.5rem auto 0 auto;
    padding: 2.5rem 1.5rem 2rem 1.5rem;
    background: var(--card-bg);
    border-radius: 18px;
    box-shadow: 0 4px 32px rgba(38,214,196,0.07);
    border: 1.5px solid var(--card-border);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.subtitle {
    color: var(--accent);
    font-size: 1.35rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    text-align: center;
}

.intro {
    font-size: 1.15rem;
    line-height: 1.7;
    margin-bottom: 2.2rem;
    text-align: center;
}

.contact {
    width: 100%;
    margin-bottom: 2.5rem;
}

.contact h3 {
    color: var(--accent);
    margin-bottom: 0.5rem;
    text-align: center;
}

.contact-card {
    background: #181c1f;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 1.2rem 1rem;
    margin: 0 auto;
    max-width: 340px;
    box-shadow: 0 2px 12px rgba(38,214,196,0.04);
    text-align: center;
}

.contact-card a {
    color: var(--accent);
    text-decoration: none;
    transition: text-decoration 0.2s;
}
.contact-card a:hover {
    text-decoration: underline;
}

.contact-name {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
}

.signature {
    margin-top: 2.5rem;
    font-size: 1rem;
    color: #b2fff6;
    opacity: 0.8;
    text-align: center;
}

@media (max-width: 700px) {
    .header {
        padding: 1.5rem 0 1rem 0;
    }
    .content.modern {
        padding: 1.5rem 0.5rem 1.5rem 0.5rem;
        margin-top: 1.2rem;
    }
    .contact-card {
        padding: 1rem 0.5rem;
    }
}