.page-packs-container {
    display: block;
    width: 100%;
}

.page-packs {
    height: 100%;
    display: grid;
    grid-template-columns: minmax(20rem, 1.2fr) minmax(24rem, 1.8fr);
    column-gap: 2rem;
    max-width: 1500px;
    margin: 0 auto;
    padding-inline: 1.5rem;
}

.page-packs > div {
    overflow-y: auto;
}

.packs-container {
    padding-block: 1.5rem;
    height: 100%;
}

.packs-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.packs-header h1 {
    font-size: 34.2857142857px;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    color: var(--color-text);
}

.packs-header .description {
    font-size: 14.2857142857px;
    color: var(--color-text-muted);
    line-height: 20px;
    margin: 0;
}

.page-packs .search-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.page-packs .search-box {
    flex: 1;
    min-width: 200px;
}

.sort-select {
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background-color: var(--color-surface-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    color: var(--color-text);
    font-family: 'Lexend Deca', sans-serif;
    font-size: 14.2857142857px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.sort-select:focus {
    outline: none;
    border-color: var(--color-border-glow);
    box-shadow: 0 0 16px var(--color-primary-glow);
}

.pack-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.search-empty {
    padding: 2rem 1rem;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 14.2857142857px;
}

.pack-card {
    background-color: var(--color-surface-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.25rem;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.pack-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.pack-card h3 {
    margin: 0;
    font-size: 17.1428571429px;
    font-weight: 700;
    color: var(--color-text);
}

.pack-points-pill {
    font-size: 11.4285714286px;
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: 9999px;
    background: rgba(141, 43, 226, 0.2);
    color: #a83dff;
    border: 1px solid var(--color-border-glow);
}

.pack-author {
    font-size: 11.4285714286px;
    color: var(--color-text-muted);
    margin: 0;
}

.pack-description {
    font-size: 14.2857142857px;
    color: var(--color-text);
    line-height: 20px;
    margin: 0;
}

.pack-stats {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.25rem;
}

.level-count-pill {
    font-size: 11.4285714286px;
    padding: 0.2rem 0.5rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text-muted);
}

.pack-card:hover {
    background-color: var(--color-surface-hover);
    border-color: var(--color-border-glow);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.pack-card.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 24px var(--color-primary-glow);
}

.pack-card.active h3,
.pack-card.active .pack-author,
.pack-card.active .pack-description,
.pack-card.active .level-count-pill {
    color: #ffffff;
}

.pack-card.active .pack-points-pill {
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
    border-color: transparent;
}

.pack-card.active .level-count-pill {
    background: rgba(255, 255, 255, 0.15);
}

/* Right Pack Details Pane */
.pack-details {
    padding-block: 1.5rem;
    height: 100%;
}

.pack-info-card {
    background-color: var(--color-surface-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.pack-info-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.pack-title-block h2 {
    font-size: 34.2857142857px;
    font-weight: 700;
    margin: 0 0 0.4rem 0;
    color: var(--color-text);
}

.pack-author-full {
    font-size: 14.2857142857px;
    color: var(--color-text-muted);
    margin: 0;
}

.pack-author-full strong {
    color: var(--color-text);
}

.pack-reward-badge {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.2rem;
    padding: 0.5rem 1rem;
    background: rgba(141, 43, 226, 0.15);
    border: 1px solid var(--color-border-glow);
    border-radius: 12px;
}

.reward-label {
    font-size: 11.4285714286px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
    font-weight: 700;
}

.reward-val {
    font-size: 20px;
    font-weight: 700;
    color: #a83dff;
    text-shadow: 0 0 12px var(--color-primary-glow);
}

.pack-full-desc {
    font-size: 14.2857142857px;
    line-height: 22px;
    color: var(--color-text);
    margin: 0;
}

.pack-levels-block h3,
.pack-users-block h3 {
    font-size: 17.1428571429px;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 0.75rem 0;
}

.levels-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.level-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    transition: background 0.15s;
}

.level-item:hover {
    background: var(--color-surface-hover);
}

.level-item .level-number {
    font-size: 14.2857142857px;
    font-weight: 700;
    color: #a83dff;
    min-width: 2.5rem;
}

.level-item .level-name {
    font-size: 14.2857142857px;
    color: var(--color-text);
}

.completed-users {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.user-badge {
    display: inline-flex;
    padding: 0.35rem 0.85rem;
    border-radius: 9999px;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--color-success);
    font-size: 11.4285714286px;
    font-weight: 700;
}

.page-packs .errors {
    grid-column: 1 / span 2;
    padding-top: 1rem;
}

.page-packs .errors .error {
    padding: 0.75rem 1.25rem;
    background-color: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--color-error);
    border-radius: 12px;
    font-size: 14.2857142857px;
}

/* Mobile Navigation Bar & Back Row */
.mobile-nav-bar {
    display: none;
}

.mobile-back-row {
    display: none;
}

@media screen and (max-width: 900px) {
    .page-packs {
        display: flex;
        flex-direction: column;
        height: auto;
        padding-inline: 1rem;
        padding-bottom: 2rem;
    }

    .page-packs .errors {
        grid-column: auto;
    }

    .mobile-nav-bar {
        display: flex;
        gap: 0.5rem;
        width: 100%;
        position: sticky;
        top: 0;
        z-index: 80;
        background: var(--color-background);
        padding-block: 0.75rem 0.5rem;
        margin-bottom: 0.5rem;
    }

    .mobile-nav-tab {
        flex: 1;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.4rem;
        padding: 0.65rem 0.5rem;
        min-height: 44px;
        border-radius: 12px;
        background: var(--color-surface-card);
        border: 1px solid var(--color-border);
        color: var(--color-text-muted);
        font-family: 'Lexend Deca', sans-serif;
        font-size: 11.4285714286px;
        font-weight: 700;
        cursor: pointer;
        transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .mobile-nav-tab svg {
        width: 16px;
        height: 16px;
    }

    .mobile-nav-tab.active {
        background: var(--color-primary);
        color: #ffffff;
        border-color: transparent;
        box-shadow: 0 0 16px var(--color-primary-glow);
    }

    .mobile-back-row {
        display: flex;
        margin-bottom: 1rem;
    }

    .mobile-back-btn {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        padding: 0.6rem 1rem;
        min-height: 44px;
        border-radius: 12px;
        background: var(--color-surface-card);
        border: 1px solid var(--color-border);
        color: var(--color-text);
        font-family: 'Lexend Deca', sans-serif;
        font-size: 14.2857142857px;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.2s;
    }

    .mobile-back-btn svg {
        width: 18px;
        height: 18px;
    }

    .mobile-back-btn:hover {
        background: var(--color-surface-hover);
        border-color: var(--color-border-glow);
    }

    .mobile-hidden {
        display: none !important;
    }

    .page-packs .packs-container,
    .page-packs .pack-details {
        width: 100%;
        max-width: 100%;
        padding-inline: 0;
        height: auto;
        overflow-y: visible;
    }
}