/* Brochures page — catalog layout with PDF preview */

.page-hero--brochures,
.br-hero {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0a1f38 0%, #1A3668 48%, #1e4976 100%);
    color: #fff;
    padding: clamp(2.75rem, 5.5vw, 3.75rem) 0 clamp(2.25rem, 4.5vw, 3rem);
    text-align: center;
}

.page-hero--brochures::before,
.br-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 85% 20%, rgba(232, 93, 4, 0.14) 0%, transparent 42%),
        radial-gradient(circle at 10% 80%, rgba(255, 255, 255, 0.06) 0%, transparent 38%);
    pointer-events: none;
}

.br-hero .container {
    position: relative;
    z-index: 1;
}

.page-hero--brochures h1,
.br-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(1.85rem, 4vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 0.55rem;
}

.br-hero__lead {
    max-width: 40rem;
    margin: 0 auto;
    font-size: 1rem;
    line-height: 1.7;
    opacity: 0.92;
}

.page-hero--brochures .breadcrumb,
.br-hero .breadcrumb {
    margin-top: 1rem;
}

/* ---- Page shell ---- */
.br-page {
    background: #f5f7fa;
    padding-top: clamp(1.75rem, 3.5vw, 2.5rem);
    padding-bottom: clamp(3.5rem, 7vw, 5rem);
}

.br-page .dl-downloads-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: clamp(1.75rem, 3vw, 2.25rem);
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 0;
    box-shadow: none;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 0.5rem;
}

.br-page .dl-downloads-tabs__link {
    display: inline-flex;
    align-items: center;
    padding: 0.65rem 1rem;
    font-family: var(--font-display);
    font-size: 0.84rem;
    font-weight: 700;
    color: #64748b;
    background: transparent;
    border: none;
    border-radius: 8px 8px 0 0;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.br-page .dl-downloads-tabs__link:hover {
    color: var(--color-primary-dark);
    background: transparent;
}

.br-page .dl-downloads-tabs__link.is-active {
    color: var(--color-primary-dark);
    background: transparent;
    border-color: var(--color-accent);
    box-shadow: none;
}

/* ---- Two-column layout ---- */
.br-layout {
    display: grid;
    grid-template-columns: minmax(220px, 250px) minmax(0, 1fr);
    gap: clamp(1.5rem, 3vw, 2rem);
    align-items: start;
}

.br-sidebar {
    position: sticky;
    top: calc(var(--header-height, 84px) + 1.25rem);
    padding: 1rem;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    box-shadow: 0 4px 20px rgba(15, 39, 68, 0.04);
}

.br-sidebar__label {
    margin: 0 0 0.75rem;
    padding: 0 0.5rem;
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #94a3b8;
    border-bottom: none;
}

.br-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.br-nav__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.6rem 0.7rem;
    font-family: var(--font-body);
    font-size: 0.82rem;
    font-weight: 600;
    line-height: 1.35;
    color: #5a6578;
    text-decoration: none;
    border-radius: 8px;
    border-left: none;
    transition: background 0.2s ease, color 0.2s ease;
}

.br-nav__link:hover {
    color: var(--color-primary-dark);
    background: #f1f5f9;
}

.br-nav__link.is-active {
    color: #fff;
    background: var(--color-primary-dark);
    box-shadow: 0 4px 12px rgba(26, 54, 104, 0.18);
}

.br-nav__count {
    flex-shrink: 0;
    min-width: 1.5rem;
    padding: 0.15rem 0.45rem;
    font-size: 0.68rem;
    font-weight: 800;
    text-align: center;
    color: #64748b;
    background: #f1f5f9;
    border-radius: 999px;
}

.br-nav__link.is-active .br-nav__count {
    color: var(--color-primary-dark);
    background: #fff;
}

.br-nav__link:hover .br-nav__count {
    color: #64748b;
    background: #e8eef4;
}

/* ---- Main content ---- */
.br-catalog {
    display: flex;
    flex-direction: column;
    gap: clamp(1.75rem, 3.5vw, 2.25rem);
}

.br-group {
    scroll-margin-top: calc(var(--header-height, 84px) + 1.5rem);
    padding: clamp(1.15rem, 2.5vw, 1.35rem);
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    box-shadow: 0 6px 28px rgba(15, 39, 68, 0.05);
}

.br-group__head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem 1rem;
    margin-bottom: 1.1rem;
    padding-bottom: 0.9rem;
    border-bottom: 1px solid #eef2f6;
}

.br-group__title {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    font-weight: 800;
    color: var(--color-primary-dark);
    line-height: 1.25;
    padding-left: 0;
    border-left: none;
}

.br-group__badge {
    padding: 0.25rem 0.65rem;
    font-family: var(--font-display);
    font-size: 0.68rem;
    font-weight: 700;
    color: #64748b;
    background: #f1f5f9;
    border: none;
    border-radius: 6px;
    box-shadow: none;
}

/* ---- Document card grid ---- */
.br-docs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 0;
    box-shadow: none;
    overflow: visible;
}

.br-doc {
    margin: 0;
    height: 100%;
}

.br-doc__row {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 0;
    padding: 0;
    background: #fafbfc;
    border: 1px solid #e8edf3;
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.22s ease, box-shadow 0.22s ease, transform 0.22s ease;
}

.br-doc:hover .br-doc__row {
    background: #fff;
    border-color: rgba(26, 54, 104, 0.15);
    box-shadow: 0 10px 28px rgba(15, 39, 68, 0.08);
    transform: translateY(-2px);
}

.br-doc__thumb {
    position: relative;
    width: 100%;
    height: 156px;
    flex-shrink: 0;
    border: none;
    border-radius: 0;
    background: linear-gradient(160deg, #eef2f7 0%, #e4eaf2 100%);
    overflow: hidden;
    box-shadow: none;
}

.br-doc__thumb--preview {
    cursor: pointer;
    position: relative;
    padding: 0;
}

.br-doc__thumb--preview::after {
    content: '';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 39, 68, 0.55);
    opacity: 0;
    transition: opacity 0.22s ease;
}

.br-doc__thumb--preview::before {
    content: 'Preview PDF';
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 700;
    color: #fff;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s ease;
}

.br-doc__thumb--preview:hover::after,
.br-doc__thumb--preview:focus-visible::after,
.br-doc__thumb--preview:hover::before,
.br-doc__thumb--preview:focus-visible::before {
    opacity: 1;
}

.br-doc__thumb--preview:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: -2px;
}

.br-doc__thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 0.55rem;
}

.br-doc__info {
    flex: 1;
    min-width: 0;
    padding: 0.85rem 0.95rem 0.5rem;
}

.br-doc__meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.4rem;
}

.br-doc__type {
    display: inline-flex;
    padding: 0.15rem 0.45rem;
    font-family: var(--font-display);
    font-size: 0.56rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #fff;
    background: #dc2626;
    border-radius: 3px;
}

.br-doc__size {
    font-size: 0.72rem;
    font-weight: 600;
    color: #94a3b8;
}

.br-doc__title {
    margin: 0 0 0.35rem;
    font-family: var(--font-display);
    font-size: 0.92rem;
    font-weight: 700;
    line-height: 1.38;
    color: var(--color-primary-dark);
}

.br-doc__desc {
    margin: 0;
    font-size: 0.78rem;
    line-height: 1.55;
    color: #000000;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.br-doc__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    padding: 1rem;
}

.br-doc__icon .br-pdf-icon {
    padding: 0;
    height: 100%;
}

.br-doc__icon .br-pdf-icon__svg {
    height: 55%;
    max-height: 5rem;
}

.br-doc__actions {
    display: flex;
    flex-direction: row;
    gap: 0.45rem;
    min-width: 0;
    padding: 0 0.95rem 0.95rem;
    margin-top: auto;
    border-top: none;
}

.br-doc__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    flex: 1;
    width: auto;
    padding: 0.55rem 0.6rem;
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.br-doc__btn--preview {
    color: var(--color-accent-hover);
    background: #fff;
    border-color: rgba(232, 93, 4, 0.3);
    box-shadow: none;
}

.br-doc__btn--preview:hover,
.br-doc__btn--preview:focus-visible {
    color: #fff;
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: none;
    outline: none;
}

.br-doc__btn--download {
    color: #fff;
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

.br-doc__btn--download:hover {
    color: #fff;
    background: var(--color-primary);
    border-color: var(--color-primary);
}

/* ---- PDF preview modal ---- */
.br-preview {
    position: fixed;
    inset: 0;
    z-index: 10040;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(0.75rem, 3vw, 1.5rem);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.28s ease, visibility 0.28s ease;
}

.br-preview.is-open {
    opacity: 1;
    visibility: visible;
}

.br-preview[hidden] {
    display: flex !important;
}

body.br-preview-open {
    overflow: hidden;
}

.br-preview__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(10, 25, 47, 0.82);
    backdrop-filter: blur(4px);
}

.br-preview__dialog {
    position: relative;
    z-index: 1;
    width: min(1080px, 100%);
    height: min(92vh, 860px);
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.08),
        0 32px 80px rgba(0, 0, 0, 0.4);
    transform: scale(0.96) translateY(12px);
    transition: transform 0.28s ease;
}

.br-preview.is-open .br-preview__dialog {
    transform: scale(1) translateY(0);
}

.br-preview__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: linear-gradient(135deg, #0a1f38 0%, #1A3668 100%);
    color: #fff;
    flex-shrink: 0;
}

.br-preview__header-info {
    min-width: 0;
    flex: 1;
}

.br-preview__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-bottom: 0.35rem;
    padding: 0.2rem 0.55rem;
    font-family: var(--font-display);
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #fff;
    background: rgba(232, 93, 4, 0.9);
    border-radius: 4px;
}

.br-preview__title {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    font-weight: 700;
    color: #fff;
    line-height: 1.35;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.br-preview__header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.br-preview__download {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1rem;
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    text-decoration: none;
    background: #fff;
    border-radius: 9px;
    transition: background 0.2s ease, transform 0.2s ease;
}

.br-preview__download:hover {
    color: var(--color-primary-dark);
    background: #f0f9ff;
    transform: translateY(-1px);
}

.br-preview__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 9px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    cursor: pointer;
    transition: background 0.2s ease;
}

.br-preview__close:hover {
    background: rgba(255, 255, 255, 0.18);
}

.br-preview__frame-wrap {
    position: relative;
    flex: 1;
    min-height: 0;
    background: #525659;
}

.br-preview__loader {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    color: #fff;
    background: #525659;
}

.br-preview__loader[hidden] {
    display: none !important;
}

.br-preview__spinner {
    width: 36px;
    height: 36px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: br-spin 0.7s linear infinite;
}

@keyframes br-spin {
    to { transform: rotate(360deg); }
}

.br-preview__frame {
    width: 100%;
    height: 100%;
    min-height: 0;
    border: 0;
    display: block;
}

/* Legacy */
.br-card {
    margin: 0;
}

/* ---- PDF icon ---- */
.br-pdf-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    padding: 1rem 0.75rem;
}

.br-pdf-icon__svg {
    width: auto;
    height: 68%;
    max-height: 9rem;
    display: block;
    filter: drop-shadow(0 4px 10px rgba(15, 39, 68, 0.1));
}

.br-pdf-icon--detail {
    padding: 2rem 1.5rem;
}

.br-pdf-icon--detail .br-pdf-icon__svg {
    height: auto;
    width: min(58%, 11rem);
    max-height: none;
}

/* Detail page */
.br-detail {
    background: #fff;
}

.br-detail-hero {
    background: linear-gradient(135deg, #0a1f38 0%, #1A3668 100%);
    color: #fff;
    padding: clamp(2rem, 4vw, 2.75rem) 0;
}

.br-detail-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.5rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    opacity: 0.88;
}

.br-detail-breadcrumb a {
    color: #fff;
    text-decoration: none;
}

.br-detail-breadcrumb a:hover {
    text-decoration: underline;
}

.br-detail-hero__category {
    display: inline-block;
    margin-bottom: 0.5rem;
    padding: 0.3rem 0.7rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-primary-dark);
    background: var(--color-accent);
    border-radius: 6px;
}

.br-detail-hero h1 {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(1.65rem, 3.5vw, 2.25rem);
    font-weight: 800;
    line-height: 1.2;
}

.br-detail-body {
    padding: clamp(2.5rem, 5vw, 3.5rem) 0 clamp(3.5rem, 7vw, 5rem);
}

.br-detail-grid {
    display: grid;
    grid-template-columns: minmax(260px, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(2rem, 4vw, 3rem);
    align-items: start;
}

.br-detail-preview {
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 14px 40px rgba(15, 39, 68, 0.1);
    border: 1px solid #e8edf3;
}

.br-detail-preview__img {
    width: 100%;
    display: block;
    object-fit: cover;
}

.br-detail-preview__placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 380px;
    padding: 2rem;
    background: #fff;
}

.br-detail-info__desc {
    margin: 0 0 1.5rem;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text-muted);
}

.br-detail-meta {
    margin: 0 0 1.75rem;
    padding: 1.15rem 1.25rem;
    background: #fafbfc;
    border: 1px solid #e8edf3;
    border-radius: 14px;
}

.br-detail-meta__row {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 0.5rem 1rem;
    padding: 0.45rem 0;
    border-bottom: 1px solid #eef2f6;
}

.br-detail-meta__row:last-child {
    border-bottom: none;
}

.br-detail-meta dt {
    margin: 0;
    font-size: 0.82rem;
    font-weight: 600;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.br-detail-meta dd {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-primary-dark);
}

.br-detail-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    width: 100%;
    max-width: 320px;
    padding: 1rem 1.5rem;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    background: linear-gradient(135deg, #F57C20 0%, #e85d04 100%);
    border-radius: 14px;
    box-shadow: 0 8px 24px rgba(232, 93, 4, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.br-detail-download:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(232, 93, 4, 0.42);
}

.br-detail-unavailable {
    margin: 0 0 1rem;
    padding: 1rem;
    font-size: 0.95rem;
    color: var(--color-text-muted);
    background: #fff8e6;
    border: 1px solid rgba(232, 93, 4, 0.3);
    border-radius: 14px;
}

.br-detail-unavailable a {
    color: var(--color-primary);
    font-weight: 600;
}

.br-detail-back {
    display: inline-block;
    margin-top: 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
}

.br-detail-back:hover {
    text-decoration: underline;
}

/* ---- Responsive ---- */
@media (max-width: 1100px) {
    .br-docs {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 992px) {
    .br-layout {
        grid-template-columns: 1fr;
    }

    .br-sidebar {
        position: static;
    }

    .br-nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.35rem;
    }

    .br-nav__link {
        flex: 1 1 auto;
        min-width: fit-content;
    }

    .br-nav__link.is-active {
        border-left-color: transparent;
    }

    .br-nav__link:hover,
    .br-nav__link.is-active {
        padding-left: 0.7rem;
    }
}

@media (max-width: 768px) {
    .br-doc__thumb {
        height: 180px;
    }

    .br-preview__header {
        flex-wrap: wrap;
    }

    .br-preview__title {
        white-space: normal;
    }

    .br-detail-grid {
        grid-template-columns: 1fr;
    }

    .br-detail-download {
        max-width: none;
    }
}

@media (max-width: 560px) {
    .br-doc__actions {
        flex-direction: column;
    }

    .br-preview__dialog {
        height: 95vh;
        border-radius: 14px;
    }

    .br-preview__header-actions {
        width: 100%;
        justify-content: flex-end;
    }
}