.affiliate-module {
    margin: 1.5rem 0;
    padding: clamp(1rem, 2.5vw, 1.4rem);
    border: 1px solid var(--border, #dce3e8);
    border-radius: 14px;
    background: linear-gradient(135deg, var(--bg-card, #fff), var(--bg, #f8fafc));
    color: var(--text, #1f2937);
}

.affiliate-module__heading {
    margin: 0 0 0.35rem;
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.35;
}

.affiliate-module__intro {
    margin: 0 0 1rem;
    color: #475569;
    font-size: 0.9rem;
    line-height: 1.5;
}

.affiliate-preview-badge {
    display: inline-block;
    margin: 0 0 0.65rem;
    padding: 0.3rem 0.55rem;
    border-radius: 4px;
    background: #fef3c7;
    color: #92400e;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.affiliate-module__list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr));
    gap: 0.75rem;
}

.affiliate-card {
    box-sizing: border-box;
    min-width: 0;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 11px;
    background: var(--bg-card, #fff);
    transition: border-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.affiliate-card:hover {
    border-color: var(--primary, #2563eb);
    box-shadow: 0 5px 18px rgb(15 23 42 / 8%);
    transform: translateY(-1px);
}

.affiliate-card__name {
    margin: 0 0 0.4rem;
    font-size: 1rem;
    line-height: 1.4;
    overflow-wrap: anywhere;
}

.affiliate-card__reason {
    flex: 1 0 auto;
    margin: 0 0 1rem;
    color: #475569;
    font-size: 0.9rem;
    line-height: 1.5;
}

.affiliate-card__link {
    display: inline-flex;
    width: 100%;
    min-height: 44px;
    box-sizing: border-box;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 0.85rem;
    border-radius: 8px;
    background: #15803d;
    color: #fff;
    font-weight: 650;
    line-height: 1.3;
    text-align: center;
    text-decoration: none;
    transition: background-color 150ms ease;
}

.affiliate-card__link:hover {
    background: #166534;
    color: #fff;
}

.affiliate-card__link::after {
    content: "↗";
    margin-left: 0.4rem;
    font-size: 0.9em;
}

.affiliate-card__link:focus-visible {
    outline: 3px solid #166534;
    outline-offset: 2px;
}

.affiliate-card__destination {
    display: block;
    margin: 0.45rem 0 0;
    color: #475569;
    font-size: 0.8rem;
    line-height: 1.35;
    text-align: center;
}

.affiliate-card__eyebrow {
    margin: 0 0 0.35rem;
    color: #475569;
    font-size: 0.75rem;
    font-weight: 650;
    line-height: 1.3;
    letter-spacing: 0.025em;
    text-transform: uppercase;
}

.affiliate-card__destination span {
    display: inline-block;
    margin-left: 0.1rem;
    font-size: 0.85em;
}

/* Reference books are optional background reading, so keep the book closed
   until a reader asks for it. This leaves practical cards unchanged. */
.affiliate-module--reference-only {
    padding: 0.85rem 1rem;
    border-color: #e5e7eb;
    border-radius: 10px;
    background: var(--bg-card, #fff);
}

.affiliate-module--reference-only .affiliate-module__heading {
    margin: 0 0 0.55rem;
    color: #475569;
    font-size: 0.95rem;
    font-weight: 650;
}

.affiliate-module--reference-only .affiliate-module__list {
    display: block;
}

.affiliate-card--reference {
    padding: 0;
    border: 0;
    border-radius: 7px;
    background: transparent;
    box-shadow: none;
    transform: none;
}

.affiliate-card--reference:hover {
    border-color: transparent;
    box-shadow: none;
    transform: none;
}

.affiliate-card__summary {
    display: flex;
    min-height: 44px;
    box-sizing: border-box;
    align-items: center;
    width: fit-content;
    max-width: 100%;
    padding: 0.55rem 0.7rem;
    border-radius: 7px;
    color: #334155;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.affiliate-card__summary:hover {
    background: #f1f5f9;
}

.affiliate-card__summary:focus-visible {
    outline: 3px solid #2563eb;
    outline-offset: 2px;
}

.affiliate-card--reference[open] .affiliate-card__summary {
    margin-bottom: 0.35rem;
}

.affiliate-card--task-guide {
    padding: 0.9rem;
}

.affiliate-card__reference-content {
    max-width: 42rem;
    padding: 0.35rem 0.7rem 0.7rem;
}

.affiliate-card__guide-content {
    max-width: 46rem;
}

.affiliate-card__guide-content .affiliate-card__reason {
    margin-bottom: 0.65rem;
}

.affiliate-card__steps {
    margin: 0 0 0.85rem;
    padding-left: 1.35rem;
    color: #334155;
    line-height: 1.55;
}

.affiliate-card__steps li + li {
    margin-top: 0.3rem;
}

.affiliate-card__sources {
    margin: 0 0 1rem;
    padding-left: 1.2rem;
    color: #475569;
    font-size: 0.85rem;
    line-height: 1.5;
}

.affiliate-card__sources a {
    color: var(--primary, #2563eb);
    text-decoration: underline;
    text-underline-offset: 0.12em;
}

.affiliate-card__sources a:focus-visible {
    outline: 3px solid #2563eb;
    outline-offset: 2px;
}

.affiliate-card__reference-content .affiliate-card__reason {
    margin-bottom: 0.8rem;
    font-size: 0.85rem;
}

.affiliate-card__reference-content .affiliate-card__link {
    width: auto;
    min-width: 12rem;
}

.affiliate-module__disclosure {
    margin: 0.85rem 0 0;
    color: #475569;
    font-size: 0.8rem;
    line-height: 1.4;
}

@media (max-width: 520px) {
    .affiliate-module {
        margin: 1.1rem 0;
        padding: 0.9rem;
        border-radius: 11px;
    }

    .affiliate-module__list {
        grid-template-columns: 1fr;
        gap: 0.6rem;
    }

    .affiliate-card {
        padding: 0.85rem;
    }

    .affiliate-module--reference-only {
        padding: 0.75rem;
    }

    .affiliate-module--reference-only .affiliate-card--reference {
        padding: 0;
    }

    .affiliate-card__summary {
        width: 100%;
    }

    .affiliate-card__reference-content {
        padding-right: 0.35rem;
        padding-left: 0.35rem;
    }

    .affiliate-card__reference-content .affiliate-card__link {
        width: 100%;
        min-width: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .affiliate-card,
    .affiliate-card__link {
        transition: none;
    }

    .affiliate-card:hover {
        transform: none;
    }
}