.cards-3,
.cards-4,
.contact-grid {
    display: grid;
    gap: 24px;
}

.cards-3,
.contact-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.signup-card {
    max-width: 920px;
    margin: 0 auto;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
}

.signup-form {
    display: grid;
    gap: 20px;
}

.form-grid {
    display: grid;
    gap: 18px;
}

.form-grid.two-up {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
}

.form-field {
    display: grid;
    gap: 8px;
    font-weight: 700;
    color: var(--ink);
    align-content: start;
    min-width: 0;
}

.field-label {
    display: inline-block;
    font-size: 0.92rem;
    line-height: 1.3;
    color: var(--ink);
}

.form-field-wide {
    width: 100%;
}

.form-field small {
    font-weight: 500;
    color: var(--muted);
    line-height: 1.45;
}

.form-field input,
.form-field textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid var(--line);
    font: inherit;
    color: var(--ink);
    background: var(--white);
}

.form-field textarea {
    resize: vertical;
    min-height: 120px;
}

.text-danger {
    font-size: 0.85rem;
    line-height: 1.35;
}

@media (max-width: 1000px) {
    .cards-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .cards-3,
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 800px) {
    .form-grid.two-up {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 620px) {
    .cards-4 {
        grid-template-columns: 1fr;
    }

    .signup-card {
        padding: 24px;
    }
}