body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    color: #1f2933;
    background: #f9fafb;
    line-height: 1.6;
}

.container {
    max-width: 960px;
    margin: auto;
    padding: 4rem 2rem;
}

.hero {
    background: #111827;
    color: #f9fafb;
}

.hero h1 {
    font-weight: 500;
    font-size: 2.8rem;
}

.muted {
    color: #9ca3af;
}

.lead {
    max-width: 640px;
    margin: 1.5rem 0 2.5rem;
}

.primary-cta {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: #2563eb;
    color: white;
    text-decoration: none;
    border-radius: 6px;
}

section h2 {
    font-weight: 500;
    margin-bottom: 2rem;
}

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

.principle-list li {
    margin-bottom: 1.5rem;
}

.principle-list span {
    display: block;
    color: #4b5563;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.signal {
    background: #f3f4f6;
    text-align: center;
}

blockquote {
    font-size: 1.5rem;
    font-weight: 300;
    max-width: 720px;
    margin: auto;
}

.conversation form {
    max-width: 520px;
}

input, textarea {
    width: 100%;
    margin-bottom: 1rem;
    padding: 0.75rem;
    font-family: inherit;
}

button {
    background: #111827;
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

footer {
    text-align: center;
    padding: 2rem;
    color: #6b7280;
}