/* The newsletter band at the top of the footer (Pages/Shared/_NewsletterSection.cshtml), on every page.
   Background: millimetre paper, the 1 / 5 / 10 mm grid of the drawing film used for field plans, drawn in CSS
   and faded towards both side edges. Its strength is --newsletter-grid-opacity. */

.newsletter-band {
    --newsletter-grid: 43, 88, 154; /* --blue-color as RGB */
    --newsletter-grid-opacity: .7;
    --newsletter-border: #c8d6e8;
    --newsletter-muted: #5c6b80;
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: 56px 0;
    background: #eef4fb;
    border-top: 1px solid #e1e9f3;
}

    .newsletter-band::before {
        content: "";
        position: absolute;
        inset: 0;
        z-index: -1;
        pointer-events: none;
        opacity: var(--newsletter-grid-opacity);
        background-image:
            linear-gradient(to right, rgba(var(--newsletter-grid), .20) 1px, transparent 1px),
            linear-gradient(to bottom, rgba(var(--newsletter-grid), .20) 1px, transparent 1px),
            linear-gradient(to right, rgba(var(--newsletter-grid), .11) 1px, transparent 1px),
            linear-gradient(to bottom, rgba(var(--newsletter-grid), .11) 1px, transparent 1px),
            linear-gradient(to right, rgba(var(--newsletter-grid), .06) 1px, transparent 1px),
            linear-gradient(to bottom, rgba(var(--newsletter-grid), .06) 1px, transparent 1px);
        background-size: 100px 100px, 100px 100px, 50px 50px, 50px 50px, 10px 10px, 10px 10px;
        background-position: -1px -1px;
        -webkit-mask-image: linear-gradient(100deg, rgba(0, 0, 0, .25) 8%, #000 50%, rgba(0, 0, 0, .25) 92%);
        mask-image: linear-gradient(100deg, rgba(0, 0, 0, .25) 8%, #000 50%, rgba(0, 0, 0, .25) 92%);
    }

.newsletter-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 540px);
    gap: 28px 56px;
    align-items: center;
}

.newsletter-kicker {
    margin-bottom: 12px;
    color: var(--blue-color);
    font-size: var(--fs-sm);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.newsletter-title {
    margin: 0;
    color: var(--primary-color);
    font-size: clamp(1.625rem, 1.3rem + 1.2vw, 2.25rem);
    font-weight: 400;
    line-height: 1.25;
    text-wrap: balance;
}

.newsletter-sub {
    max-width: 44ch;
    margin: 12px 0 0;
    color: var(--newsletter-muted);
    font-size: var(--fs-base);
    line-height: 1.55;
}

.newsletter-form {
    display: grid;
    gap: 14px;
}

.newsletter-topics {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
}

    .newsletter-topics legend {
        float: none;
        width: auto;
        margin: 0 0 10px;
        padding: 0;
        color: var(--primary-color);
        font-size: var(--fs-sm);
        font-weight: 500;
    }

.newsletter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* A checkbox styled as a chip; the real input covers the chip, so a click anywhere on it ticks it. */
.newsletter-chip {
    position: relative;
    margin: 0;
}

    .newsletter-chip input {
        position: absolute;
        inset: 0;
        margin: 0;
        opacity: 0;
        cursor: pointer;
    }

    .newsletter-chip span {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        height: 38px;
        padding: 0 14px;
        border: 1px solid var(--newsletter-border);
        border-radius: 20px;
        background: var(--white-color);
        color: var(--primary-color);
        font-size: var(--fs-sm);
        user-select: none;
        transition: border-color .2s;
    }

        .newsletter-chip span::before {
            content: "";
            flex-shrink: 0;
            width: 14px;
            height: 14px;
            border: 1.5px solid #a9b7ca;
            border-radius: 4px;
        }

    .newsletter-chip input:checked + span {
        border-color: var(--primary-color);
        font-weight: 500;
    }

        .newsletter-chip input:checked + span::before {
            border-color: var(--secondary-color);
            background: var(--secondary-color);
            box-shadow: inset 0 0 0 2px var(--white-color);
        }

    .newsletter-chip input:focus-visible + span {
        outline: 2px solid var(--secondary-color);
        outline-offset: 2px;
    }

.newsletter-row {
    display: flex;
    gap: 10px;
}

.newsletter-input {
    flex: 1;
    min-width: 0;
    height: 48px;
    padding: 0 16px;
    border: 1px solid var(--newsletter-border);
    border-radius: 8px;
    background: var(--white-color);
    color: var(--text-color);
    font-size: var(--fs-base);
}

    .newsletter-input::placeholder {
        color: #8b97a8;
    }

    .newsletter-input:focus {
        outline: none;
        border-color: var(--blue-color);
        box-shadow: 0 0 0 3px rgba(43, 88, 154, .15);
    }

    .newsletter-input[aria-invalid="true"] {
        border-color: #b3261e;
    }

.newsletter-button {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    height: 48px;
    padding: 0 20px;
    border: 1px solid var(--secondary-color);
    border-radius: 8px;
    background: var(--secondary-color);
    color: var(--white-color);
    font-size: var(--fs-base);
    font-weight: 500;
    white-space: nowrap;
    transition: background .3s, border-color .3s;
}

    .newsletter-button:hover,
    .newsletter-button:focus-visible {
        border-color: var(--primary-color);
        background: var(--primary-color);
    }

    .newsletter-button svg {
        width: 18px;
        height: 18px;
    }

.newsletter-error {
    margin: 8px 0 0;
    color: #b3261e;
    font-size: var(--fs-sm);
}

.newsletter-row + .newsletter-error {
    margin-top: -6px;
}

.newsletter-consent {
    margin: 0;
    color: var(--newsletter-muted);
    font-size: .8125rem;
    line-height: 1.5;
}

    .newsletter-consent a {
        color: var(--blue-color);
    }

.newsletter-status {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 8px;
    font-size: var(--fs-base);
    line-height: 1.5;
}

    .newsletter-status p {
        margin: 0;
    }

    .newsletter-status svg {
        flex-shrink: 0;
        width: 22px;
        height: 22px;
        margin-top: 1px;
    }

.newsletter-status--success {
    background: #e7f5ee;
    color: #1d7a4f;
}

.newsletter-status--error {
    background: #fdecea;
    color: #b3261e;
}

/* Off screen, like the trap of the Book Demo form. */
.newsletter-trap {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

@media (max-width: 991.98px) {
    .newsletter-band {
        padding: 40px 0;
    }

    .newsletter-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 575.98px) {
    .newsletter-row {
        flex-direction: column;
    }

    .newsletter-button {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .newsletter-chip span,
    .newsletter-button {
        transition: none;
    }
}