body.app-shell {
    --app-shell-width: 1200px;
    --app-container-width: 1200px;
    --app-container-wide-width: 1500px;
    --app-header-padding: 12px 20px;
    --app-page-header-padding: 20px 24px;
    background-color: var(--app-bg, #f1f5f9);
    color: #1e293b;
    display: flex;
    flex-direction: column;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    min-height: 100vh;
    padding: 0;
}

.app-header {
    background-color: #0f172a;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    color: #ffffff;
    padding: var(--app-header-padding, 10px 20px);
}

.app-header-container {
    align-items: center;
    display: flex;
    justify-content: space-between;
    margin: 0 auto;
    max-width: var(--app-shell-width, 1200px);
    width: 100%;
}

.app-header-actions {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
    margin-left: auto;
    min-width: 0;
}

.app-header-back {
    align-items: center;
    background: #475569;
    border: none;
    border-radius: 6px;
    color: #ffffff;
    cursor: pointer;
    display: inline-flex;
    font-size: 13px;
    font-weight: 700;
    gap: 6px;
    justify-content: center;
    line-height: 1;
    padding: 9px 14px;
    text-decoration: none;
    transition: background 0.2s;
    white-space: nowrap;
}

.app-header-back:hover {
    background: #334155;
}

.app-header-user {
    align-items: center;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    display: flex;
    gap: 12px;
    max-width: 100%;
    padding: 8px 10px;
}

.app-header-user-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.app-header-user-name {
    color: #ffffff;
    font-size: 13px;
    font-weight: 800;
    line-height: 1.1;
    white-space: nowrap;
}

.app-header-user-meta {
    color: #cbd5e1;
    font-size: 11px;
    font-weight: 600;
    line-height: 1.1;
    max-width: 240px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.app-header-logout-form {
    margin: 0;
}

.app-header-logout {
    align-items: center;
    background: #334155;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: #ffffff;
    cursor: pointer;
    display: inline-flex;
    font-size: 12px;
    font-weight: 700;
    gap: 4px;
    justify-content: center;
    line-height: 1;
    padding: 8px 10px;
    text-decoration: none;
    transition: background 0.2s;
    white-space: nowrap;
}

.app-header-logout:hover {
    background: #dc2626;
}

.app-header-user-extra {
    background: transparent;
    border: 0;
    padding: 0;
}

.app-brand a {
    align-items: center;
    color: #ffffff;
    display: flex;
    gap: 15px;
    text-decoration: none;
}

.app-brand-logo {
    background: #ffffff;
    border-radius: 6px;
    max-height: 70px;
    padding: 5px;
}

.app-brand h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 28px;
    font-weight: 900;
    letter-spacing: 0.5px;
    margin: 0;
}

.app-brand p {
    color: #cbd5e1;
    font-size: 13.5px;
    font-weight: 600;
    letter-spacing: 1px;
    margin: 2px 0 0;
    text-transform: uppercase;
}

.app-main {
    display: flex;
    flex: 1;
    flex-direction: column;
}

.app-container {
    box-sizing: border-box;
    margin: var(--app-container-margin, 24px auto);
    max-width: var(--app-container-width, 1200px);
    padding: var(--app-container-padding, 0 20px);
    width: 100%;
}

.app-container-wide {
    box-sizing: border-box;
    margin: var(--app-container-margin, 24px auto);
    max-width: var(--app-container-wide-width, 1500px);
    padding: var(--app-container-padding, 0 20px);
    width: 100%;
}

.app-footer {
    background-color: #0f172a;
    border-top: 1px solid #1e293b;
    color: #94a3b8;
    font-size: 13px;
    font-weight: 500;
    margin-top: auto;
    padding: 15px 20px;
    text-align: center;
}

.app-footer strong {
    color: #cbd5e1;
}

.app-page-header {
    align-items: flex-start;
    background: #ffffff;
    border: 1px solid #dbe4ef;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
    display: flex;
    gap: 16px;
    justify-content: space-between;
    margin-bottom: 24px;
    padding: var(--app-page-header-padding, 20px 24px);
}

.app-page-header-main {
    flex: 1 1 auto;
    min-width: 0;
}


.app-page-title {
    color: #0f172a;
    font-family: 'Montserrat', sans-serif;
    margin: 0;
}

.app-page-description,
.app-page-context {
    color: #475569;
    margin: 6px 0 0;
}

.app-page-eyebrow {
    color: #64748b;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0;
    margin: 0 0 5px;
    text-transform: uppercase;
}

.app-page-actions,
.app-actions {
    align-items: flex-start;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
}

.app-page-header .app-page-actions,
.app-page-header .app-actions {
    flex: 0 0 auto;
}

.app-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    padding: 24px;
}

.app-table-wrap,
.table-wrap {
    overflow-x: auto;
    width: 100%;
}

.app-alert {
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
    padding: 12px 20px;
}

.app-alert-success {
    background: #dcfce7;
    border: 1px solid #bbf7d0;
    color: #16803d;
}

.app-alert-error {
    background: #fef2f2;
    border: 1px solid #fee2e2;
    color: #991b1b;
}

.app-alert-warning {
    background: #fef3c7;
    border: 1px solid #fde68a;
    color: #b45309;
}

.app-alert-info {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #1d4ed8;
}

.app-empty {
    color: #64748b;
    font-style: italic;
}

.app-muted {
    color: #64748b;
}

.app-badge {
    border-radius: 4px;
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 8px;
}

.app-badge-success {
    background: #dcfce7;
    color: #15803d;
}

.app-badge-warning {
    background: #fef3c7;
    color: #b45309;
}

.app-badge-danger {
    background: #fee2e2;
    color: #b91c1c;
}

.app-badge-info {
    background: #e0f2fe;
    color: #0369a1;
}

.app-btn {
    align-items: center;
    background: #475569;
    border: none;
    border-radius: 6px;
    color: #ffffff;
    cursor: pointer;
    display: inline-flex;
    font-size: 14px;
    font-weight: 600;
    gap: 6px;
    justify-content: center;
    margin-bottom: 20px;
    padding: 10px 16px;
    text-decoration: none;
    transition: background 0.2s;
}

.app-btn:hover {
    background: #334155;
}

.app-btn-primary {
    background: #0284c7;
}

.app-btn-primary:hover {
    background: #0369a1;
}

.app-btn-secondary {
    background: #475569;
}

.app-btn-success {
    background: #16a34a;
}

.app-toolbar .app-btn,
.app-filter-actions .app-btn,
.app-filters .app-btn {
    margin-bottom: 0;
}


.app-form-full .app-btn {
    margin-bottom: 0;
}


.app-btn-success:hover {
    background: #15803d;
}

.app-page-header .app-btn,
.app-page-header .app-actions .app-btn {
    margin-bottom: 0;
}

.app-card-header {
    align-items: center;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 12px;
}

.app-card-title {
    color: #0f172a;
    font-size: 18px;
    font-weight: 700;
    margin: 0;
}

.app-card-body {
    display: block;
}

.app-card--compact {
    padding: 20px;
}

.app-card h2,
.app-card h3 {
    color: #0f172a;
    margin-top: 0;
}

.app-card h2 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f1f5f9;
}

.app-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f1f5f9;
    text-transform: uppercase;
}

.app-form-grid,
.app-filters {
    display: grid;
    gap: 15px;
}

.app-form-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.app-form-full {
    grid-column: 1 / -1;
    display: flex;
    justify-content: flex-end;
    margin-top: 10px;
}

.app-filters {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    align-items: end;
}

.app-form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.app-label {
    color: #475569;
    font-size: 14px;
    font-weight: 600;
}

.app-form-group input,
.app-form-group select,
.app-form-group textarea,
.app-input,
.app-select,
.app-textarea {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    box-sizing: border-box;
    font-size: 14px;
    padding: 12px;
    width: 100%;
}

.app-form-group input:focus,
.app-form-group select:focus,
.app-form-group textarea:focus,
.app-input:focus,
.app-select:focus,
.app-textarea:focus {
    border-color: #0284c7;
    outline: none;
}

.app-filter-actions,
.app-toolbar {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.app-filter-actions {
    justify-content: flex-start;
}

.app-table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    overflow: hidden;
}

.app-table th,
.app-table td {
    padding: 12px 14px;
    text-align: left;
}

.app-table th {
    background: #0f172a;
    color: #ffffff;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

.app-table tbody tr {
    border-bottom: 1px solid #e2e8f0;
}

.app-table tbody tr:nth-child(even) {
    background: #f8fafc;
}

.app-table tbody tr:last-child {
    border-bottom: none;
}

.app-table--sm th,
.app-table--sm td {
    padding: 8px 10px;
    font-size: 12px;
}

.app-table--sm th {
    text-align: center;
}


.app-table-wrap {
    overflow-x: auto;
    width: 100%;
}

@media (max-width: 720px) {
    .app-header-container,
    .app-page-header {
        align-items: stretch;
        flex-direction: column;
    }

    .app-header-user {
        flex-direction: column;
        align-items: stretch;
    }

    .app-header-logout {
        width: 100%;
    }

    .app-page-actions,
    .app-actions {
        justify-content: flex-start;
    }
}

@media (max-width: 900px) {
    .app-header-container {
        align-items: flex-start;
        flex-direction: column;
    }

    .app-header-actions {
        justify-content: flex-start;
        margin-left: 0;
        width: 100%;
    }

    .app-header-user {
        width: 100%;
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .app-header-user-meta {
        max-width: 100%;
    }
}