/* VidyaNest ebook discovery */
.discovery {
    --vn-ink: #17243b;
    --vn-muted: #64748b;
    --vn-primary: #4338ca;
    --vn-border: #e2e8f0;
    color: var(--vn-ink);
    padding-bottom: 16px;
}

    .discovery *,
    .discovery *::before,
    .discovery *::after {
        box-sizing: border-box;
    }

    /* Page introduction */
    .discovery .discovery-heading {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        margin-bottom: 30px;
    }

    .discovery .eyebrow {
        margin: 0 0 10px;
        color: var(--vn-primary);
        font-size: 11px;
        font-weight: 700;
        letter-spacing: .13em;
        text-transform: uppercase;
    }

    .discovery .discovery-heading h1 {
        margin: 0 0 10px;
        font-size: clamp(27px, 3.5vw, 42px);
        font-weight: 750;
        line-height: 1.15;
        letter-spacing: -.035em;
    }

    .discovery .discovery-heading > div > p:last-child {
        margin: 0;
        color: var(--vn-muted);
        font-size: 15px;
        line-height: 1.65;
    }

    /* Shared buttons */
    .discovery .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        min-height: 42px;
        padding: 10px 16px;
        border-radius: 9px;
        font-size: 13px;
        font-weight: 600;
        line-height: 1.3;
        text-decoration: none;
        transition: background-color .18s ease, border-color .18s ease;
    }

    .discovery .btn-primary {
        color: #fff;
        background: var(--vn-primary);
        border-color: var(--vn-primary);
    }

        .discovery .btn-primary:hover {
            background: #3730a3;
            border-color: #3730a3;
        }

    .discovery .btn-outline-primary {
        color: var(--vn-primary);
        background: #fff;
        border-color: #c7d2fe;
    }

        .discovery .btn-outline-primary:hover {
            color: #3730a3;
            background: #eef2ff;
            border-color: #a5b4fc;
        }

    .discovery .btn-light {
        color: var(--vn-ink);
        background: #fff;
        border-color: var(--vn-border);
    }

        .discovery .btn-light:hover {
            background: #f1f5f9;
            border-color: #cbd5e1;
        }

    .discovery a:focus-visible,
    .discovery button:focus-visible,
    .discovery .featured-rail:focus-visible {
        outline: 3px solid #818cf8;
        outline-offset: 4px;
    }

    /* Section titles */
    .discovery .rail-heading {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 14px;
        margin-bottom: 16px;
    }

        .discovery .rail-heading h2 {
            margin: 0;
            font-size: 21px;
            font-weight: 700;
            letter-spacing: -.025em;
        }

        .discovery .rail-heading p {
            margin: 5px 0 0;
            color: var(--vn-muted);
            font-size: 13px;
            line-height: 1.6;
        }

        .discovery .rail-heading > span {
            padding: 6px 11px;
            border: 1px solid var(--vn-border);
            border-radius: 999px;
            color: #475569;
            background: #fff;
            font-size: 12px;
            font-weight: 600;
        }

    .discovery .rail-controls:not([hidden]) {
        display: flex;
        gap: 8px;
    }

    .discovery .rail-controls[hidden] {
        display: none;
    }

    .discovery .rail-controls .btn {
        min-width: 42px;
        padding: 8px;
        font-size: 18px;
    }

    /* Featured carousel */
    .discovery .featured-rail {
        display: flex;
        gap: 18px;
        overflow-x: auto;
        overscroll-behavior-x: contain;
        scroll-snap-type: x mandatory;
        scrollbar-width: thin;
        scrollbar-color: #cbd5e1 transparent;
        padding: 3px 2px 14px;
        margin-bottom: 28px;
    }

        .discovery .featured-rail::-webkit-scrollbar {
            height: 6px;
        }

        .discovery .featured-rail::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 10px;
        }

    .discovery .featured-slide {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 170px;
        align-items: center;
        gap: 26px;
        flex: 0 0 100%;
        min-width: 0;
        padding: 30px;
        border: 1px solid #263957;
        border-radius: 20px;
        color: #fff;
        background: radial-gradient( ellipse at top right, rgba(99, 102, 241, .24), transparent 60% ), #14243d;
        scroll-snap-align: start;
        overflow: hidden;
    }

    .discovery .featured-copy {
        min-width: 0;
    }

    .discovery .content-type {
        display: inline-block;
        padding: 5px 9px;
        margin-bottom: 12px;
        border: 1px solid rgba(199, 210, 254, .28);
        border-radius: 6px;
        color: #e0e7ff;
        background: rgba(199, 210, 254, .08);
        font-size: 10px;
        font-weight: 700;
        letter-spacing: .1em;
    }

    .discovery .featured-category {
        margin: 0 0 8px;
        color: #c7d2fe;
        font-size: 12px;
        font-weight: 600;
        overflow-wrap: anywhere;
    }

    .discovery .featured-copy h3 {
        margin: 0 0 9px;
        font-size: clamp(23px, 2.6vw, 33px);
        font-weight: 700;
        line-height: 1.22;
        letter-spacing: -.025em;
        overflow-wrap: anywhere;
    }

    .discovery .featured-author {
        margin: 0 0 12px;
        color: #cbd5e1;
        font-size: 13px;
    }

    .discovery .featured-summary {
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
        overflow: hidden;
        max-width: 620px;
        margin: 0 0 16px;
        color: #d1d9e6;
        font-size: 14px;
        line-height: 1.65;
        overflow-wrap: anywhere;
    }

    .discovery .featured-action {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 18px;
        margin-top: 20px;
    }

        .discovery .featured-action > strong {
            font-size: 25px;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
        }

    .discovery .featured-art {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        height: 230px;
        padding: 10px;
        border: 1px solid rgba(255, 255, 255, .12);
        border-radius: 12px;
        background: rgba(255, 255, 255, .06);
    }

        .discovery .featured-art img {
            display: block;
            max-width: 100%;
            max-height: 100%;
            width: auto;
            height: auto;
            object-fit: contain;
            border-radius: 4px;
            box-shadow: 0 12px 24px rgba(0, 0, 0, .22);
        }

    /* Views and purchases */
    .discovery .vn-stats {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px 14px;
        color: var(--vn-muted);
        font-size: 11px;
        line-height: 1.5;
    }

        .discovery .vn-stats > span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .discovery .vn-stats svg {
            flex: 0 0 15px;
            width: 15px;
            height: 15px;
            fill: none;
            stroke: currentColor;
            stroke-width: 1.7;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .discovery .vn-stats strong {
            font-weight: 650;
            font-variant-numeric: tabular-nums;
        }

    .discovery .featured-slide .vn-stats {
        color: #dbe3f0;
        font-size: 12px;
    }

    /* Search and filters */
    .discovery #catalogue {
        scroll-margin-top: 90px;
    }

    .discovery .catalogue-filters {
        display: grid;
        grid-template-columns: minmax(180px, 2fr) minmax(140px, 1fr) minmax(160px, 1fr) auto auto;
        align-items: end;
        gap: 14px;
        padding: 20px;
        margin-bottom: 16px;
        border: 1px solid var(--vn-border);
        border-radius: 14px;
        background: #fff;
    }

        .discovery .catalogue-filters > div {
            min-width: 0;
        }

        .discovery .catalogue-filters label {
            display: block;
            margin-bottom: 7px;
            color: #334155;
            font-size: 12px;
            font-weight: 600;
        }

    .discovery .form-control,
    .discovery .form-select {
        width: 100%;
        min-height: 44px;
        border: 1px solid #cbd5e1;
        border-radius: 8px;
        color: var(--vn-ink);
        background-color: #fff;
        font-size: 14px;
        line-height: 1.5;
    }

    .discovery .form-control {
        padding: 10px 12px;
    }

    .discovery .form-select {
        padding: 10px 38px 10px 12px;
    }

        .discovery .form-select option {
            color: var(--vn-ink);
            background: #fff;
        }

        .discovery .form-control:focus,
        .discovery .form-select:focus {
            border-color: #818cf8;
            box-shadow: 0 0 0 3px rgba(67, 56, 202, .1);
        }

    .discovery .catalogue-filters .btn {
        min-height: 44px;
    }

    .discovery .reset-filter {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 44px;
        padding: 8px;
        color: #475569;
        font-size: 13px;
        text-underline-offset: 3px;
    }

    .discovery .result-description {
        margin: 0 0 18px;
        color: var(--vn-muted);
        font-size: 12px;
    }

    /* Compact catalogue cards */
    .discovery .catalogue-grid {
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 20px;
    }

    .discovery .catalogue-book {
        display: flex;
        flex-direction: column;
        min-width: 0;
        overflow: hidden;
        border: 1px solid var(--vn-border);
        border-radius: 13px;
        background: #fff;
        box-shadow: 0 3px 10px rgba(15, 23, 42, .025);
        transition: border-color .18s ease, box-shadow .18s ease;
    }

        .discovery .catalogue-book:hover {
            border-color: #b8c4dc;
            box-shadow: 0 8px 22px rgba(15, 23, 42, .07);
        }

    .discovery .catalogue-cover {
        display: flex;
        align-items: center;
        justify-content: center;
        height: 190px;
        padding: 16px;
        border-bottom: 1px solid #edf1f6;
        background: #f1f4f9;
    }

        .discovery .catalogue-cover img {
            display: block;
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

    .discovery .cover-placeholder {
        display: grid;
        place-items: center;
        width: 96px;
        height: 130px;
        border: 1px solid #c7d2fe;
        border-radius: 5px 10px 10px 5px;
        color: #4338ca;
        background: #e0e7ff;
        font-family: Georgia, serif;
        font-size: 40px;
    }

    .discovery .catalogue-body {
        display: flex;
        flex-direction: column;
        flex: 1;
        padding: 16px;
    }

    .discovery .book-category {
        margin-bottom: 7px;
        color: var(--vn-primary);
        font-size: 10px;
        font-weight: 700;
        letter-spacing: .045em;
        text-transform: uppercase;
        overflow-wrap: anywhere;
    }

    .discovery .catalogue-body h3 {
        margin: 0 0 7px;
        font-size: 15px;
        font-weight: 700;
        line-height: 1.45;
        overflow-wrap: anywhere;
    }

        .discovery .catalogue-body h3 a {
            color: var(--vn-ink);
            text-decoration: none;
        }

            .discovery .catalogue-body h3 a:hover {
                color: var(--vn-primary);
                text-decoration: underline;
                text-underline-offset: 3px;
            }

    .discovery .book-author {
        margin: 0 0 16px;
        color: var(--vn-muted);
        font-size: 12px;
        line-height: 1.5;
        overflow-wrap: anywhere;
    }

    .discovery .book-bottom {
        margin-top: auto;
    }

    .discovery .book-buy {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 10px;
        padding-top: 13px;
        margin-top: 13px;
        border-top: 1px solid #edf1f6;
    }

        .discovery .book-buy > strong {
            color: var(--vn-ink);
            font-size: 18px;
            font-weight: 750;
            font-variant-numeric: tabular-nums;
        }

        .discovery .book-buy .btn {
            min-height: 38px;
            padding: 8px 11px;
            font-size: 11px;
        }

    /* Empty state and pagination */
    .discovery .catalogue-empty {
        padding: 48px 20px;
        border: 1px dashed #cbd5e1;
        border-radius: 14px;
        background: #fff;
        text-align: center;
    }

        .discovery .catalogue-empty h3 {
            margin-bottom: 10px;
            font-size: 21px;
            font-weight: 700;
        }

        .discovery .catalogue-empty p {
            color: var(--vn-muted);
        }

        .discovery .catalogue-empty a {
            color: var(--vn-primary);
            font-weight: 600;
        }

    .discovery .catalogue-pages {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 30px;
    }

        .discovery .catalogue-pages .btn {
            min-width: 42px;
        }

        .discovery .catalogue-pages > span:not(.btn) {
            width: 100%;
            margin-top: 6px;
            color: var(--vn-muted);
            font-size: 12px;
            text-align: center;
        }

/* Tablets */
@media (max-width: 991.98px) {
    .discovery .catalogue-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 16px;
    }

    .discovery .catalogue-filters {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

        .discovery .catalogue-filters > div:first-child {
            grid-column: 1 / -1;
        }

    .discovery .featured-slide {
        padding: 24px;
    }
}

/* Phones */
@media (max-width: 767.98px) {
    .discovery .discovery-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 16px;
        margin-bottom: 25px;
    }

    .discovery .catalogue-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
    }

    .discovery .featured-slide {
        grid-template-columns: minmax(0, 1fr) 110px;
        gap: 16px;
        padding: 20px;
        border-radius: 15px;
    }

    .discovery .featured-art {
        height: 170px;
        padding: 6px;
    }

    .discovery .featured-copy h3 {
        font-size: 23px;
    }

    .discovery .catalogue-cover {
        height: 170px;
        padding: 12px;
    }

    .discovery .catalogue-body {
        padding: 13px;
    }

    .discovery .book-buy {
        align-items: stretch;
        flex-direction: column;
    }

        .discovery .book-buy .btn {
            width: 100%;
            min-height: 42px;
        }

    .discovery .catalogue-filters {
        gap: 12px;
        padding: 16px;
    }
}

@media (max-width: 479.98px) {
    .discovery .featured-slide {
        grid-template-columns: minmax(0, 1fr) 86px;
        gap: 12px;
        padding: 17px;
    }

    .discovery .featured-art {
        align-self: start;
        height: 130px;
    }

    .discovery .featured-copy h3 {
        font-size: 20px;
    }

    .discovery .featured-summary {
        font-size: 12px;
    }

    .discovery .featured-action {
        gap: 12px;
    }

        .discovery .featured-action > strong {
            font-size: 21px;
        }

    .discovery .rail-heading h2 {
        font-size: 19px;
    }

    .discovery .catalogue-filters {
        grid-template-columns: minmax(0, 1fr);
    }

    .discovery .catalogue-cover {
        height: 150px;
        padding: 10px;
    }

    .discovery .catalogue-body h3 {
        font-size: 14px;
    }
}

@media (max-width: 359.98px) {
    .discovery .catalogue-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (prefers-reduced-motion: reduce) {
    .discovery .btn,
    .discovery .catalogue-book {
        transition: none;
    }

    .discovery .featured-rail {
        scroll-behavior: auto;
    }
}
/* Match Play/Pause to the carousel arrow buttons */
.discovery .rail-controls {
    align-items: center;
}

.discovery .vn-rotation {
    appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    min-width: 72px;
    height: 42px;
    padding: 0 14px;
    border: 1px solid #e2e8f0;
    border-radius: 9px;
    background: #fff;
    color: #334155;
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    transition: background-color .18s ease, border-color .18s ease;
}

    .discovery .vn-rotation:hover {
        background: #eef2ff;
        border-color: #c7d2fe;
        color: #4338ca;
    }

    .discovery .vn-rotation:focus-visible {
        outline: 3px solid #818cf8;
        outline-offset: 3px;
    }

@media (prefers-reduced-motion: reduce) {
    .discovery .vn-rotation {
        transition: none;
    }
}