/**
 * Virtual Numbers Catalog — شماره مجازی
 * Uses theme variables from variables.css for light/dark support.
 * Responsive: sidebar becomes horizontal strip on mobile.
 */

/* Layout */
.vn-layout {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: flex-start;
    margin-top: 0.5rem; /* فاصلهٔ کم و بهینه از هدر — تراز باکس جستجو و لیست کاتالوگ */
}

.vn-sidebar {
    flex: 0 0 220px;
    position: sticky;
    top: calc(var(--header-height) + 1rem);
    max-height: calc(100vh - var(--header-height) - 2rem);
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.vn-sidebar nav {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.vn-service-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    overflow-y: auto;
    overscroll-behavior: contain;
    min-height: 0;
    flex: 1 1 auto;
    padding-inline-end: 0.35rem;
    scrollbar-width: thin;
    scrollbar-color: var(--surface-border) transparent;
}

.vn-service-list::-webkit-scrollbar {
    width: 5px;
}

.vn-service-list::-webkit-scrollbar-track {
    background: transparent;
}

.vn-service-list::-webkit-scrollbar-thumb {
    background: var(--surface-border);
    border-radius: 999px;
}

.vn-service-list::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.vn-service-list li {
    margin: 0;
}

.vn-service-list a {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.55rem 0.75rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text-primary);
    background: var(--surface-card);
    border: 1px solid var(--surface-border);
    transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
    font-size: 0.9rem;
    font-weight: 500;
}

.vn-service-list a:hover {
    background: var(--surface-card-hover);
    border-color: var(--surface-border);
}

.vn-service-list a.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
}

.vn-service-list .icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}

.vn-main {
    flex: 1;
    min-width: 0;
}

/* Intro box: title + description + collapsible filter — one card */
.vn-intro {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    background: var(--surface-card);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.35rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.vn-intro__title {
    margin: 0 0 0.5rem 0;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.vn-intro__desc {
    margin: 0 0 0.75rem 0;
    font-size: 0.925rem;
    line-height: 1.55;
    color: var(--text-secondary);
}

.vn-intro__desc a {
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 500;
}

.vn-intro__desc a:hover {
    text-decoration: underline;
}

.vn-intro__toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.75rem;
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-sm);
    background: var(--surface-card-hover);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast);
    align-self: flex-end;
}

.vn-intro__toggle:hover {
    background: var(--surface-muted);
    border-color: var(--surface-border);
}

.vn-intro__toggle-icon {
    display: inline-flex;
    transition: transform 0.25s ease;
}

.vn-intro__toggle[aria-expanded="true"] .vn-intro__toggle-icon {
    transform: rotate(180deg);
}

.vn-intro__filter {
    margin-top: 0.85rem;
    padding-top: 0.85rem;
    border-top: 1px solid var(--surface-border);
}

.vn-catalog-filter {
    display: flex;
    flex-wrap: nowrap;
    flex-direction: row;
    gap: 1rem;
    align-items: flex-end;
}

.vn-catalog-filter__field {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    min-width: 0;
}

.vn-catalog-filter__field:first-child {
    flex: 1 1 20rem;
}

.vn-catalog-filter__label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.vn-catalog-filter__search,
.vn-catalog-filter__select {
    flex: 0 0 auto;
    min-height: 2.5rem;
    box-sizing: border-box;
    border-radius: var(--radius-sm);
    border: 1px solid var(--surface-border);
    background: var(--surface-card-hover);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.vn-catalog-filter__search {
    width: 100%;
    min-width: 12rem;
    padding: 0.5rem 0.9rem;
    font-size: 0.95rem;
    line-height: 1.4;
}

.vn-catalog-filter__search::placeholder {
    color: var(--input-placeholder);
}

.vn-catalog-filter__search:focus,
.vn-catalog-filter__select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

.vn-catalog-filter__search:hover,
.vn-catalog-filter__select:hover {
    border-color: var(--surface-border);
}

.vn-catalog-filter__select {
    width: 10.5rem;
    min-width: 10.5rem;
    padding: 0.5rem 2rem 0.5rem 0.9rem;
    font-size: 0.9rem;
    line-height: 1.4;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: left 0.65rem center;
}

.vn-catalog-filter__field:nth-child(2) .vn-catalog-filter__select {
    width: 14.5rem;
    min-width: 14.5rem;
}

[dir="rtl"] .vn-catalog-filter__select {
    background-position: right 0.65rem center;
    padding: 0 0.9rem 0 2rem;
}

/* Catalog container: shared ui-loading-scrim + content */
.vn-catalog {
    position: relative;
    min-height: 120px;
}

/* Skeleton table loading row (inside table until catalog fetch completes) */
.vn-table-loading-row td {
    padding: 1.5rem 1rem;
    text-align: center;
    vertical-align: middle;
    border: none;
}

.vn-table-loading {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.vn-table-loading__text {
    white-space: nowrap;
}

.vn-catalog__content[aria-hidden="true"] {
    opacity: 0.5;
    pointer-events: none;
}

.vn-unavailable-label {
    font-size: 0.9rem;
}

/* Search form */
.vn-search-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.vn-search-form input[type="text"] {
    flex: 1;
    min-width: 160px;
    padding: 0.55rem 0.85rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text-primary);
    font-size: 0.95rem;
}

.vn-search-form input[type="text"]::placeholder {
    color: var(--input-placeholder);
}

.vn-search-form input[type="text"]:focus {
    outline: none;
    border-color: var(--input-border-focus);
}

.vn-search-form .vn-buy-btn {
    padding: 0.55rem 1rem;
}

/* Table */
.vn-table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-md);
    background: var(--surface-card);
    border: 1px solid var(--surface-border);
    box-shadow: var(--shadow-sm);
}

.vn-table {
    width: 100%;
    border-collapse: collapse;
}

.vn-table th,
.vn-table td {
    padding: 0.75rem 1rem;
    text-align: right;
    color: var(--text-primary);
}

.vn-table th {
    font-weight: 600;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--surface-border);
    background: var(--surface-card-hover);
    white-space: nowrap;
}

.vn-table th a {
    color: var(--text-primary);
    text-decoration: none;
}

.vn-table th a:hover {
    color: var(--primary-light);
}

.vn-table tr:hover td {
    background: var(--surface-card-hover);
}

.vn-table td {
    font-size: 0.95rem;
}

.vn-unavailable {
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
}

/* Buy button */
.vn-buy-btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    background: var(--primary);
    color: var(--text-inverse);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    border: none;
    cursor: pointer;
}

.vn-buy-btn:hover {
    color: var(--text-inverse);
    opacity: 0.92;
}

/* Light theme — ensure contrast */
[data-theme="light"] .vn-service-list a {
    background: var(--surface-card);
    border-color: var(--surface-border);
    color: var(--text-primary);
}

[data-theme="light"] .vn-catalog-filter__search,
[data-theme="light"] .vn-catalog-filter__select {
    background: var(--surface-card);
    border-color: var(--surface-border);
}

[data-theme="light"] .vn-catalog-filter__search:focus,
[data-theme="light"] .vn-catalog-filter__select:focus {
    border-color: var(--primary);
}

[data-theme="light"] .vn-service-list a:hover {
    background: var(--surface-card-hover);
}

[data-theme="light"] .vn-service-list a.active {
    background: var(--primary);
    color: var(--text-inverse);
    border-color: var(--primary);
}

[data-theme="light"] .vn-table-wrap {
    background: var(--surface-card);
    border-color: var(--surface-border);
}

[data-theme="light"] .vn-table th {
    background: var(--surface-card-hover);
    border-bottom-color: var(--surface-border);
}

/* ----- Responsive: mobile first adjustments ----- */

@media (max-width: 991px) {
    .vn-sidebar {
        flex: 0 0 100%;
        width: 100%;
        max-height: none;
        position: static;
        order: -1;
    }

    .vn-sidebar nav {
        flex: none;
        overflow: visible;
    }

    .vn-service-list {
        flex: none;
        flex-direction: row;
        flex-wrap: nowrap;
        overflow-x: auto;
        overflow-y: hidden;
        gap: 0.5rem;
        padding-bottom: 0.15rem;
        padding-inline-end: 0;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-x: contain;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

    .vn-service-list::-webkit-scrollbar {
        display: none;
        width: 0;
        height: 0;
    }

    .vn-intro {
        padding: 1rem 1.1rem;
    }

    .vn-service-list li {
        flex-shrink: 0;
        scroll-snap-align: start;
    }

    .vn-service-list a {
        padding: 0.5rem 0.85rem;
        white-space: nowrap;
        font-size: 0.85rem;
    }

    .vn-service-list .icon {
        width: 24px;
        height: 24px;
        border-radius: 6px;
        min-width: 24px;
        min-height: 24px;
    }

    .vn-layout {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 576px) {
    .vn-intro {
        padding: 0.9rem 1rem;
    }

    .vn-intro__title {
        font-size: 1.2rem;
    }

    .vn-intro__desc {
        font-size: 0.875rem;
    }

    .vn-intro__filter {
        margin-top: 0.75rem;
        padding-top: 0.75rem;
    }

    .vn-catalog-filter {
        flex-wrap: wrap;
        flex-direction: row;
        gap: 0.65rem;
    }

    .vn-catalog-filter__field:first-child {
        flex: 1 1 100%;
    }

    .vn-catalog-filter__search {
        flex: 1 1 100%;
        min-width: 0;
        padding: 0.55rem 0.8rem;
    }

    .vn-catalog-filter__select {
        flex: 1 1 calc(50% - 0.35rem);
        width: auto;
        min-width: 0;
    }

    .vn-catalog {
        min-height: 100px;
    }

    .vn-table-loading {
        font-size: 0.85rem;
    }

    .vn-table-loading-row td {
        padding: 1.25rem 0.6rem;
    }

    .vn-table th,
    .vn-table td {
        padding: 0.5rem 0.6rem;
        font-size: 0.85rem;
    }

    .vn-buy-btn {
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
    }

    .vn-service-list a {
        padding: 0.4rem 0.7rem;
        font-size: 0.8rem;
    }

    .vn-service-list .icon {
        width: 20px;
        height: 20px;
        min-width: 20px;
        min-height: 20px;
        border-radius: 4px;
    }
}

@media (max-width: 380px) {
    .vn-table-loading {
        font-size: 0.8rem;
    }

    .vn-table-loading-row td {
        padding: 1rem 0.5rem;
    }

    .vn-table th,
    .vn-table td {
        padding: 0.4rem 0.5rem;
        font-size: 0.8rem;
    }

    .vn-buy-btn {
        padding: 0.35rem 0.6rem;
        font-size: 0.78rem;
    }
}