/**
 * Tools Hub v2.
 *
 * Layout styles are scoped to the Design System root to avoid theme leakage.
 */

.yn-tools-hub.yn-ui {
    background: linear-gradient(180deg, #f8fbff 0%, #f4f7fb 100%);
    border-radius: 24px;
    margin: 24px auto 56px;
    max-width: 1180px;
    overflow: hidden;
    padding: clamp(16px, 3vw, 32px);
}

.yn-tools-hub[hidden],
.yn-tools-hub [hidden] {
    display: none !important;
}

.yn-tools-hub .yn-tools-hub__hero {
    padding: clamp(20px, 5vw, 48px) 12px 30px;
    text-align: center;
}

.yn-tools-hub .yn-tools-hub__kicker,
.yn-tools-hub .yn-tools-hub__eyebrow {
    color: var(--yn-ui-color-brand);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    margin: 0 0 6px;
    text-transform: uppercase;
}

.yn-tools-hub .yn-tools-hub__hero h1 {
    color: var(--yn-ui-color-text);
    font-size: clamp(1.8rem, 5vw, 3.25rem);
    letter-spacing: -0.035em;
    line-height: 1.2;
    margin: 0;
}

.yn-tools-hub .yn-tools-hub__hero > p:last-child {
    color: var(--yn-ui-color-muted);
    font-size: clamp(0.9375rem, 2vw, 1.0625rem);
    line-height: 1.8;
    margin: 14px auto 0;
    max-width: 720px;
}

.yn-tools-hub .yn-tools-hub__search {
    margin: 0 auto;
    max-width: 760px;
}

.yn-tools-hub .yn-tools-hub__search .yn-ui-card-body {
    padding: clamp(16px, 3vw, 24px);
}

.yn-tools-hub .yn-tools-hub__search-control {
    align-items: center;
    display: flex;
    position: relative;
}

.yn-tools-hub .yn-tools-hub__search-control > span {
    color: var(--yn-ui-color-muted);
    font-size: 1.35rem;
    left: 15px;
    line-height: 1;
    pointer-events: none;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

.yn-tools-hub .yn-tools-hub__search-control .yn-ui-input {
    min-height: 52px;
    padding-left: 46px;
}

.yn-tools-hub .yn-tools-hub__section {
    margin-top: clamp(28px, 5vw, 46px);
}

.yn-tools-hub .yn-tools-hub__section-heading {
    align-items: end;
    display: flex;
    gap: 24px;
    justify-content: space-between;
    margin-bottom: 16px;
}

.yn-tools-hub .yn-tools-hub__section-heading h2 {
    color: var(--yn-ui-color-text);
    font-size: clamp(1.35rem, 3vw, 1.75rem);
    line-height: 1.35;
    margin: 0;
}

.yn-tools-hub .yn-tools-hub__section-heading > p {
    color: var(--yn-ui-color-muted);
    font-size: 0.875rem;
    margin: 0;
    text-align: right;
}

.yn-tools-hub .yn-tools-hub__categories {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.yn-tools-hub .yn-tools-hub__category {
    align-items: center;
    appearance: none;
    background: var(--yn-ui-color-surface);
    border: 1px solid #e5e7eb;
    border-radius: var(--yn-ui-radius-medium);
    color: var(--yn-ui-color-text);
    cursor: pointer;
    display: flex;
    font: inherit;
    gap: 12px;
    min-height: 78px;
    min-width: 0;
    padding: 12px;
    text-align: left;
    touch-action: manipulation;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.yn-tools-hub .yn-tools-hub__category:hover {
    border-color: #93b4fb;
    box-shadow: 0 7px 18px rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

.yn-tools-hub .yn-tools-hub__category:focus-visible {
    box-shadow: var(--yn-ui-focus-ring);
    outline: 2px solid transparent;
}

.yn-tools-hub .yn-tools-hub__category.is-active,
.yn-tools-hub .yn-tools-hub__category[aria-pressed="true"] {
    background: var(--yn-ui-color-brand-soft);
    border-color: var(--yn-ui-color-brand);
}

.yn-tools-hub .yn-tools-hub__category-icon {
    align-items: center;
    background: var(--yn-ui-color-brand-soft);
    border-radius: 10px;
    color: var(--yn-ui-color-brand-hover);
    display: flex;
    flex: 0 0 44px;
    font-size: 0.8rem;
    font-weight: 900;
    height: 44px;
    justify-content: center;
    overflow: hidden;
}

.yn-tools-hub .yn-tools-hub__category.is-active .yn-tools-hub__category-icon {
    background: var(--yn-ui-color-brand);
    color: #ffffff;
}

.yn-tools-hub .yn-tools-hub__category > span:last-child {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.yn-tools-hub .yn-tools-hub__category strong {
    font-size: 0.9375rem;
    line-height: 1.35;
}

.yn-tools-hub .yn-tools-hub__category small {
    color: var(--yn-ui-color-muted);
    font-size: 0.75rem;
    margin-top: 3px;
}

.yn-tools-hub .yn-tools-hub__grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    min-width: 0;
}

.yn-tools-hub .yn-tools-hub__tool {
    display: flex;
    flex-direction: column;
    min-height: 286px;
    padding: 20px;
}

.yn-tools-hub .yn-tools-hub__tool-header {
    align-items: flex-start;
    display: flex;
    gap: 12px;
    justify-content: space-between;
}

.yn-tools-hub .yn-tools-hub__tool-icon {
    align-items: center;
    background: linear-gradient(145deg, #4b7df0, var(--yn-ui-color-brand));
    border-radius: 13px;
    box-shadow: 0 7px 18px rgba(37, 99, 235, 0.2);
    color: #ffffff;
    display: flex;
    flex: 0 0 48px;
    font-size: 1rem;
    font-weight: 900;
    height: 48px;
    justify-content: center;
}

.yn-tools-hub .yn-tools-hub__tool-body {
    flex: 1 1 auto;
    padding: 18px 0;
}

.yn-tools-hub .yn-tools-hub__tool-body h3 {
    color: var(--yn-ui-color-text);
    font-size: 1.125rem;
    line-height: 1.45;
    margin: 0 0 8px;
}

.yn-tools-hub .yn-tools-hub__tool-body p {
    color: var(--yn-ui-color-muted);
    font-size: 0.875rem;
    line-height: 1.7;
    margin: 0;
}

.yn-tools-hub .yn-tools-hub__tool-footer {
    margin-top: auto;
}

.yn-tools-hub .yn-tools-hub__empty {
    margin-top: 16px;
}

.yn-tools-hub .yn-tools-hub__privacy {
    margin-top: clamp(28px, 5vw, 44px);
}

@media (max-width: 900px) {
    .yn-tools-hub .yn-tools-hub__categories {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .yn-tools-hub .yn-tools-hub__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .yn-tools-hub.yn-ui {
        border-radius: 16px;
        margin: 8px auto 32px;
        padding: 12px;
    }

    .yn-tools-hub .yn-tools-hub__hero {
        padding: 22px 6px;
    }

    .yn-tools-hub .yn-tools-hub__section-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 5px;
    }

    .yn-tools-hub .yn-tools-hub__section-heading > p {
        text-align: left;
    }

    .yn-tools-hub .yn-tools-hub__categories {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .yn-tools-hub .yn-tools-hub__category {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
        min-height: 108px;
    }

    .yn-tools-hub .yn-tools-hub__category-icon {
        flex-basis: 40px;
        height: 40px;
    }

    .yn-tools-hub .yn-tools-hub__grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .yn-tools-hub .yn-tools-hub__tool {
        min-height: 0;
        padding: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .yn-tools-hub .yn-tools-hub__category {
        transition: none;
    }
}