/* Library page — Figma 2K / FullHD / Mobile */

.library-page {
    background: var(--color-bg-page);
    min-height: 50vh;
    padding: 100px 0 80px;
    box-sizing: border-box;
}

.library-page > .wrapper {
    width: var(--content-width);
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
}

.library-page__header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: nowrap;
    margin-bottom: 48px;
}

.library-page__title {
    margin: 0;
    padding-left: calc(var(--page-title-align-x) - var(--page-side-pad));
    flex: 0 1 auto;
    min-width: 0;
    font-size: clamp(36px, 5vw, 85px);
    font-weight: 500;
    color: var(--color-primary);
    line-height: 1.1;
}

.library-page__filters {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 20px;
    align-items: center;
    flex: 0 0 auto;
    margin: 0;
}

.library-page__dropdown {
    position: relative;
    width: 402px;
    flex: 0 0 402px;
}

.library-page__dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
    height: clamp(48px, 5vw, 74px);
    padding: 0 20px;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-card);
    background: transparent;
    color: var(--color-primary);
    font-family: inherit;
    font-size: clamp(16px, 1.2vw, 20px);
    font-weight: 400;
    text-align: left;
    cursor: pointer;
    box-sizing: border-box;
    transition: background-color 0.2s ease, color 0.2s ease, border-radius 0.2s ease;
}

.library-page__dropdown-label {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.library-page__dropdown-label--placeholder {
    opacity: 0.95;
}

.library-page__dropdown-chevron {
    flex: 0 0 auto;
    width: 16px;
    height: 16px;
    background: url("/img/trinagle_small.png") center / contain no-repeat;
    transition: transform 0.2s ease, filter 0.2s ease;
}

.library-page__dropdown.is-open {
    z-index: 30;
}

.library-page__dropdown.is-open .library-page__dropdown-toggle {
    background: var(--color-primary);
    border-color: var(--color-primary);
    border-bottom-color: transparent;
    color: var(--color-primary-text);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    position: relative;
    z-index: 2;
}

.library-page__dropdown.is-open .library-page__dropdown-label--placeholder {
    opacity: 1;
    color: var(--color-primary-text);
}

.library-page__dropdown.is-open .library-page__dropdown-chevron {
    transform: rotate(180deg);
    filter: brightness(0) invert(1);
}

.library-page__dropdown.is-open .library-page__dropdown-menu {
    display: block;
}

.library-page__dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin: 0;
    padding: 8px 0 12px;
    list-style: none;
    background: var(--color-primary);
    border: 2px solid var(--color-primary);
    border-top: none;
    border-radius: 0 0 var(--radius-card) var(--radius-card);
    max-height: 280px;
    overflow-y: auto;
    z-index: 1;
    box-sizing: border-box;
}

.library-page__dropdown-menu > li {
    margin: 0;
    padding: 0;
}

.library-page__dropdown-option {
    display: block;
    width: 100%;
    padding: 10px 20px;
    border: none;
    background: transparent;
    color: var(--color-primary-text);
    font-family: inherit;
    font-size: clamp(15px, 1.1vw, 18px);
    text-align: left;
    cursor: pointer;
}

.library-page__dropdown-option:hover,
.library-page__dropdown-option:focus-visible {
    background: rgba(255, 255, 255, 0.12);
    outline: none;
}

.library-page__dropdown-option.is-selected {
    font-weight: 500;
}

.library-page__group {
    margin-bottom: 56px;
}

.library-page__date {
    margin: 0 0 28px;
    padding-left: calc(var(--page-title-align-x) - var(--page-side-pad));
    font-size: clamp(32px, 3.5vw, 55px);
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.1;
}

.library-page__grid-viewport {
    position: relative;
    box-sizing: border-box;
}

.library-page__nav {
    display: none;
}

.library-page__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.library-page__card {
    display: flex;
    flex-direction: column;
    min-height: 573px;
    padding: 20px 20px 40px;
    background: #fff;
    border-radius: var(--radius-card);
    box-sizing: border-box;
}

/* FullHD: 415×246 inside 20px card padding (Figma 1854:1150) */
.library-page__card-media {
    flex: 0 0 auto;
    width: 100%;
    height: 246px;
    margin: 0 0 18px;
    border-radius: calc(var(--radius-card) - 8px);
    overflow: hidden;
    background: #fff;
    box-sizing: border-box;
}

.library-page__card-image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

.library-page__card-title {
    margin: 0 0 24px;
    font-size: clamp(20px, 1.5vw, 25px);
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.library-page__card-meta {
    margin-top: auto;
    margin-bottom: 28px;
}

.library-page__card-org {
    margin: 0;
    font-size: clamp(16px, 1.2vw, 20px);
    font-weight: 400;
    color: var(--color-text);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.library-page__card-actions {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.library-page__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    height: 40px;
    border: none;
    border-radius: var(--radius-card);
    font-family: inherit;
    font-size: 20px;
    font-weight: 400;
    cursor: pointer;
    box-sizing: border-box;
    text-decoration: none;
}

.library-page__btn:disabled,
.library-page__btn[aria-disabled="true"] {
    cursor: default;
    opacity: 0.65;
    box-sizing: border-box;
    pointer-events: none;
}

a.library-page__btn:hover {
    filter: brightness(0.97);
}

.library-page__btn--primary {
    background: var(--color-primary);
    color: var(--color-primary-text);
}

.library-page__btn--secondary {
    background: #bebebe;
    color: var(--color-text);
}

a.library-page__btn--secondary {
    cursor: pointer;
}

.library-page__btn-icon {
    display: block;
    width: 20px;
    height: 20px;
    flex: 0 0 auto;
}

.library-page__empty {
    text-align: center;
    padding: 60px 20px 80px;
}

.library-page__empty p {
    margin: 0;
    font-size: 22px;
    color: var(--color-text-muted);
    line-height: 1.5;
}

@media (min-width: 2200px) {
    .library-page__title {
        font-size: 85px;
    }

    .library-page__date {
        font-size: 55px;
    }

    .library-page__grid {
        gap: 28px;
    }

    /* 2K: 448×266 with ~41px side inset (Figma 1854:1170) */
    .library-page__card {
        padding: 10px 23px 40px;
    }

    .library-page__card-media {
        width: calc(100% - 36px);
        height: 266px;
        margin: 0 auto 18px;
    }
}

@media (max-width: 1600px) {
    .library-page__dropdown {
        width: 320px;
        flex: 0 0 320px;
    }
}

@media (max-width: 1359px) {
    .library-page__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .library-page__dropdown {
        width: 280px;
        flex: 0 0 280px;
    }
}

@media (max-width: 920px) {
    .library-page {
        padding-top: 48px;
        padding-bottom: 56px;
    }

    .library-page__header {
        flex-direction: column;
        align-items: stretch;
        flex-wrap: wrap;
        gap: 24px;
    }

    .library-page__filters {
        flex-direction: column;
        flex-wrap: wrap;
        width: 100%;
        box-sizing: border-box;
    }

    .library-page__dropdown {
        width: 100%;
        flex: 1 1 auto;
        min-width: 0;
    }

    .library-page__card {
        min-height: 0;
        padding: 20px;
    }

    .library-page__card-media {
        height: 200px;
        margin-bottom: 16px;
    }
}

@media (max-width: 767px) {
    .library-page {
        padding: 24px 0 48px;
    }

    .library-page__group {
        margin-bottom: 40px;
    }

    .library-page__date {
        margin-bottom: 20px;
        font-size: 32px;
    }

    .library-page__grid-viewport {
        display: grid;
        grid-template-columns: 28px 1fr 28px;
        align-items: center;
        gap: 4px;
    }

    .library-page__nav {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 28px;
        height: 48px;
        padding: 0;
        border: none;
        background: transparent;
        color: var(--color-primary);
        font-size: 28px;
        line-height: 1;
        cursor: pointer;
    }

    .library-page__nav--prev::before {
        content: "‹";
    }

    .library-page__nav--next::before {
        content: "›";
    }

    .library-page__nav[hidden] {
        visibility: hidden;
        pointer-events: none;
    }

    .library-page__grid {
        display: flex;
        gap: 12px;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding-bottom: 4px;
    }

    .library-page__grid::-webkit-scrollbar {
        display: none;
    }

    .library-page__card {
        flex: 0 0 calc(50% - 6px);
        min-width: calc(50% - 6px);
        max-width: calc(50% - 6px);
        scroll-snap-align: start;
        padding: 12px 12px 16px;
        min-height: 0;
    }

    /* Mobile: no preview image (Figma 768 library card) */
    .library-page__card-media {
        display: none;
    }

    .library-page__card-title {
        font-size: 16px;
        margin-bottom: 16px;
        -webkit-line-clamp: 4;
    }

    .library-page__card-org {
        font-size: 13px;
    }

    .library-page__card-meta {
        margin-bottom: 16px;
    }

    .library-page__card-actions {
        gap: 10px;
    }

    .library-page__btn {
        height: 36px;
        font-size: 14px;
        gap: 6px;
    }

    .library-page__btn-icon {
        width: 16px;
        height: 16px;
    }

    .library-page__empty p {
        font-size: 18px;
    }
}