/* =============================================================================
   BLOCCO: Layout applicazione — Archivia V1.0

   Scopo:
     Struttura pagina: topbar, layout 2 colonne (gallery + sidebar),
     griglia card immagini, paginazione, responsive.

   Vincoli:
     - Contenuto centrato max-width 1280px
     - Topbar fissa in alto
     - Desktop (>1024px): 2 colonne (gallery + sidebar tag 300px)
     - Tablet (768-1024px): colonna singola, sidebar sotto
     - Mobile (<768px): colonna singola, elementi impilati

   Ultima modifica: 17/02/2026 | v1.0
   ============================================================================= */

/* -----------------------------------------------------------------------------
   Topbar
   ----------------------------------------------------------------------------- */

.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-surface);
    border-bottom: 2px solid var(--color-border);
    box-shadow: 0 4px 14px rgba(31, 79, 191, 0.08);
    height: var(--topbar-height);
}

.topbar-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 16px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.topbar-brand {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.topbar-home-link {
    color: inherit;
    text-decoration: none;
}

.topbar-home-link:hover {
    text-decoration: none;
}

.topbar-title {
    font-weight: 900;
    font-size: 1.1rem;
    color: #102a64;
    line-height: 1.2;
}

.topbar-subtitle {
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

.topbar-nav {
    display: flex;
    align-items: center;
    gap: 10px;
}

.topbar-search {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: nowrap;
    min-width: 0;
    flex: 1 1 620px;
}

.topbar-search-fields {
    display: grid;
    grid-template-columns: 190px minmax(260px, 1fr);
    gap: 8px;
    min-width: 0;
    flex: 1 1 auto;
}

.topbar-search .form-input {
    min-width: 0;
    padding: 8px 12px;
    font-size: 0.85rem;
}

.topbar-search-btn {
    flex: 0 0 auto;
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.topbar-role {
    padding: 3px 8px;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.role-superadmin { background: rgba(37, 99, 235, 0.12); color: var(--color-primary); }
.role-admin { background: rgba(22, 163, 74, 0.1); color: var(--color-success); }
.role-user { background: rgba(100, 116, 139, 0.1); color: var(--color-text-muted); }

/* -----------------------------------------------------------------------------
   Layout principale: 2 colonne
   ----------------------------------------------------------------------------- */

.page-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 22px 18px 28px;
}

.layout-two-col {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 16px;
    align-items: start;
}

.main-area {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
}

/* -----------------------------------------------------------------------------
   Sidebar tag
   ----------------------------------------------------------------------------- */

.sidebar {
    position: sticky;
    top: calc(var(--topbar-height) + 16px);
}

.sidebar-section {
    padding: 16px;
    border-bottom: 1px solid var(--color-border);
}

.sidebar-section:last-child {
    border-bottom: none;
}

.sidebar-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 8px;
}

.tag-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: calc(100vh - var(--topbar-height) - 200px);
    overflow-y: auto;
    padding-right: 4px;
}

.tag-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    transition: background 0.15s;
}

.tag-row:hover {
    background: var(--color-surface-hover);
}

.tag-row a {
    font-weight: 700;
    font-size: 0.88rem;
}

/* -----------------------------------------------------------------------------
   Sezione upload
   ----------------------------------------------------------------------------- */

.upload-section {
    padding: 16px;
}

/* -----------------------------------------------------------------------------
   Gallery grid
   ----------------------------------------------------------------------------- */

.gallery-area {
    padding: 18px;
    background: linear-gradient(180deg, rgba(79, 157, 255, 0.08), rgba(79, 157, 255, 0.02));
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    min-height: 300px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.gallery-empty {
    text-align: center;
    padding: 48px 16px;
    color: var(--color-text-muted);
}

/* -----------------------------------------------------------------------------
   Card file
   ----------------------------------------------------------------------------- */

.file-card {
    border: 1px solid var(--color-border);
    border-radius: 14px;
    background: #fbfcff;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 322px;
    transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s;
    box-shadow: 0 6px 16px rgba(31, 79, 191, 0.08);
}

.file-card:hover {
    box-shadow: 0 14px 28px rgba(31, 79, 191, 0.16);
    border-color: var(--color-border-strong);
    transform: translateY(-2px);
}

.file-card-thumb {
    aspect-ratio: 16 / 9;
    background: #f5f9ff;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
}

.file-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.file-card-icon {
    width: 48px;
    height: 48px;
    opacity: 0.82;
}

.file-card-body {
    padding: 12px 13px 13px;
    display: flex;
    flex-direction: column;
    gap: 7px;
    flex: 1;
}

.file-card-title {
    font-weight: 700;
    font-size: 0.93rem;
    color: #0f172a;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 6px;
}

.file-card-title span {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.file-card-meta {
    font-size: 0.79rem;
    color: var(--color-text-muted);
    word-break: break-word;
}

.file-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 4px;
}

.file-card-actions {
    display: flex;
    gap: 6px;
    margin-top: auto;
    padding-top: 6px;
    border-top: 1px solid rgba(79, 157, 255, 0.15);
    flex-wrap: wrap;
}

/* -----------------------------------------------------------------------------
   Paginazione
   ----------------------------------------------------------------------------- */

.pager {
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    border-top: 1px solid var(--color-border);
}

.pager-info {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.pager-links {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.pager-link {
    padding: 6px 12px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-primary);
    background: #fcfdff;
    transition: background 0.15s, border-color 0.15s;
}

.pager-link:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-border-strong);
    text-decoration: none;
}

.pager-link.active {
    background: rgba(79, 157, 255, 0.16);
    border-color: var(--color-accent);
}

/* -----------------------------------------------------------------------------
   Tabella admin
   ----------------------------------------------------------------------------- */

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

.data-table th,
.data-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.data-table th {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    background: var(--color-surface);
}

.data-table tr:hover td {
    background: var(--color-surface-hover);
}

/* -----------------------------------------------------------------------------
   Tab navigation (admin)
   ----------------------------------------------------------------------------- */

.tab-nav {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 16px;
}

.tab-link {
    padding: 10px 20px;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color 0.15s, border-color 0.15s;
}

.tab-link:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.tab-link.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* -----------------------------------------------------------------------------
   Responsive
   ----------------------------------------------------------------------------- */

@media (max-width: 1024px) {
    .layout-two-col {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .topbar-search .form-input {
        min-width: 180px;
    }
}

@media (max-width: 768px) {
    .topbar-inner {
        flex-wrap: wrap;
        height: auto;
        padding: 10px 12px;
        gap: 8px;
    }

    .topbar-search {
        width: 100%;
        order: 10;
        flex-wrap: wrap;
    }

    .topbar-search-fields {
        grid-template-columns: 1fr;
        width: 100%;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .page-content {
        padding: 12px;
    }

    .file-card {
        min-height: 0;
    }

    .pager {
        flex-direction: column;
        align-items: flex-start;
    }

    .form-row {
        flex-direction: column;
    }

    .data-table {
        font-size: 0.8rem;
    }

    .data-table th,
    .data-table td {
        padding: 8px 6px;
    }
}