/* ==================================================================
   app.css - archive.mhafuz.com
   Same look as MasterPanel (masterpanel.erpengine.cloud): DM Sans,
   near-black #091413 accents, mint surfaces, green pills, white cards.
   Standalone: needs no other stylesheet.
   ================================================================== */

:root {
    --ink: #091413;
    --mint-50: #F0FDF4;
    --mint-100: #DCFCE7;
    --mint-200: #BBF7D0;
    --mint-hover: #E7FBEF;
    --green: #10B981;
    --green-text: #16A34A;

    --n-0: #FFFFFF;
    --n-50: #F8FAFB;
    --n-100: #F1F5F4;
    --n-150: #E8EFED;
    --n-200: #D9E5E1;
    --n-300: #B5C9C3;
    --n-400: #8BA89F;
    --n-500: #5F8078;
    --n-600: #3D5C54;
    --n-700: #2A4039;
    --n-800: #1A2B25;
    --n-900: #0E1C18;

    --danger: #EF4444;
    --danger-bg: #FEF2F2;
    --warning: #F59E0B;
    --warning-bg: #FFFBEB;

    --surface-page: #F0F7F5;
    --surface-card: #FFFFFF;
    --border: #E8EFED;
    --border-dark: #D9E5E1;

    --font: 'DM Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 9999px;
    --shadow-xs: 0 1px 2px rgba(14, 28, 24, .04);
    --shadow-sm: 0 2px 6px rgba(14, 28, 24, .06);
    --shadow-lg: 0 8px 28px rgba(14, 28, 24, .10);
    --shadow-xl: 0 16px 48px rgba(14, 28, 24, .13);
    --fast: 120ms ease;
    --sidebar-w: 220px;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font-family: var(--font);
    font-size: 13px;
    line-height: 1.5;
    color: var(--n-800);
    background: var(--surface-page);
}

a { color: inherit; }
button, input, select, textarea { font-family: inherit; }
[hidden] { display: none !important; }

.text-muted  { color: var(--n-500); }
.text-danger { color: var(--danger); }
.text-xs     { font-size: 11px; }
.text-sm     { font-size: 12px; }
.text-right  { text-align: right; }
.nowrap      { white-space: nowrap; }
.fw-semi     { font-weight: 600; }

/* ---------- App shell ---------- */
.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-w);
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 24px 12px 20px;
    background: var(--surface-card);
    border-right: 1px solid var(--border);
    overflow-y: auto;
}

.sidebar__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 8px 22px;
    margin-bottom: 14px;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
}

.sidebar__logo-icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 11px;
    background: var(--ink);
    color: #fff;
    box-shadow: 0 10px 18px rgba(9, 20, 19, .16);
}

.sidebar__logo-text {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -.3px;
    color: var(--n-900);
}

.sidebar__nav {
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1;
}

.sidebar__nav li { margin-bottom: 2px; }

.sidebar__nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 12px;
    border-radius: 13px;
    font-size: 13px;
    font-weight: 700;
    color: var(--n-500);
    text-decoration: none;
    transition: background var(--fast), color var(--fast);
}

.sidebar__nav a:hover:not(.active) {
    background: var(--mint-50);
    color: var(--ink);
}

.sidebar__nav a.active {
    background: var(--ink);
    color: #fff;
    font-weight: 800;
    box-shadow: 0 12px 24px rgba(9, 20, 19, .16);
}

.nav-icon {
    display: flex;
    opacity: .7;
}

.sidebar__nav a.active .nav-icon,
.sidebar__nav a:hover .nav-icon { opacity: 1; }

.sidebar__foot {
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

.sidebar__who {
    padding: 0 8px 10px;
    font-size: 12px;
    color: var(--n-500);
}

.sidebar__who strong { color: var(--n-800); }

.sidebar__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 12px;
    border: 1px solid var(--border-dark);
    border-radius: 12px;
    font-size: 13px;
    font-weight: 700;
    color: var(--n-600);
    text-decoration: none;
    transition: background var(--fast);
}

.sidebar__btn:hover { background: var(--mint-50); }

.sidebar__btn--dark {
    background: var(--ink);
    border-color: var(--ink);
    color: #fff;
}

.sidebar__btn--dark:hover { background: #1c2b29; }

.sidebar-backdrop { display: none; }

.main-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

/* ---------- Top bar ---------- */
.top-bar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    gap: 18px;
    min-height: 76px;
    padding: 10px 30px;
    background: var(--surface-card);
    border-bottom: 1px solid var(--border);
}

.top-bar__titles {
    flex: 1;
    min-width: 0;
}

.breadcrumb {
    font-size: 12px;
    color: var(--n-400);
}

.breadcrumb span {
    color: var(--n-700);
    font-weight: 500;
}

.top-bar__page-title {
    margin: 1px 0 0;
    font-size: 22px;
    font-weight: 700;
    color: var(--n-800);
    line-height: 1.25;
}

.top-bar__subtitle {
    margin-top: 2px;
    font-size: 14px;
    font-style: italic;
    font-weight: 500;
    color: #8f96ab;
}

.top-bar__actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.top-icon-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    background: #fff;
    color: #858ba1;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--fast), color var(--fast);
}

.top-icon-button:hover {
    background: var(--mint-50);
    color: var(--ink);
}

.menu-toggle { display: none; }

.user-chip {
    display: flex;
    align-items: center;
    gap: 8px;
}

.user-chip__avatar {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, #2DD4BF, var(--ink));
    color: #fff;
    font-size: 14px;
    font-weight: 700;
}

.user-chip__info { line-height: 1.25; }
.user-chip__name { font-size: 14px; font-weight: 600; color: var(--n-800); }
.user-chip__role { font-size: 12px; color: var(--n-400); }

.page-body {
    flex: 1;
    padding: 26px 30px 40px;
}

/* ---------- Cards / panels ---------- */
.card {
    background: var(--surface-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.panel {
    padding: 20px;
    margin-bottom: 20px;
}

.card-hd {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.panel > .card-hd {
    position: relative;
    padding-left: 12px;
}

.panel > .card-hd::before {
    content: "";
    position: absolute;
    left: 0;
    top: 1px;
    bottom: 1px;
    width: 4px;
    border-radius: var(--radius-full);
    background: var(--ink);
}

.card-hd__title {
    font-size: 13px;
    font-weight: 700;
    color: var(--n-800);
}

.card-hd__actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 38px;
    padding: 0 16px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    text-decoration: none;
    cursor: pointer;
    transition: background var(--fast), color var(--fast), border-color var(--fast);
}

.btn:disabled { opacity: .5; cursor: default; }

.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover:not(:disabled) { background: #1c2b29; }

.btn-outline {
    background: #fff;
    border-color: var(--border-dark);
    color: var(--n-600);
}
.btn-outline:hover:not(:disabled) { background: var(--n-50); }

.btn-danger {
    background: transparent;
    border-color: var(--danger);
    color: var(--danger);
}
.btn-danger:hover:not(:disabled) { background: var(--danger); color: #fff; }

.btn-sm { height: 28px; padding: 0 10px; font-size: 11px; }
.btn-block { width: 100%; height: 42px; font-size: 13px; }

/* ---------- Form fields ---------- */
.field label {
    display: block;
    margin-bottom: 6px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .3px;
    text-transform: uppercase;
    color: var(--n-400);
}

.input,
.select,
.modal textarea {
    width: 100%;
    height: 38px;
    padding: 8px 10px;
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-md);
    background: var(--surface-page);
    color: var(--n-800);
    font-size: 13px;
    transition: border-color var(--fast), background var(--fast);
}

.modal textarea { height: auto; min-height: 84px; resize: vertical; }

.input:focus,
.select:focus,
.modal textarea:focus {
    outline: none;
    border-color: var(--ink);
    background: #fff;
}

.stack-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-items: stretch;
}

.stack-form .btn { align-self: flex-start; }

/* ---------- Alerts ---------- */
.alert {
    margin-bottom: 16px;
    padding: 11px 14px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
}

.alert--success { background: var(--mint-50); border: 1px solid var(--mint-200); color: #15803D; }
.alert--error   { background: var(--danger-bg); border: 1px solid #FECACA; color: #B91C1C; }

/* ---------- Table ---------- */
.table-wrapper { overflow-x: auto; }

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.data-table thead tr { border-bottom: 1px solid var(--border); }

.data-table th {
    padding: 8px 12px;
    text-align: center;
    font-size: 11px;
    font-weight: 600;
    color: #000;
    white-space: nowrap;
}

.data-table th:first-child { padding-left: 4px; text-align: left; }

.data-table tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background var(--fast);
}

.data-table tbody tr:last-child { border-bottom: none; }
.data-table tbody tr:hover { background: var(--mint-50); }

.data-table td {
    padding: 11px 12px;
    color: var(--n-700);
    vertical-align: middle;
}

.data-table td:first-child { padding-left: 4px; }

/* ---------- Pagination ---------- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 8px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.pagination__nav { display: flex; align-items: center; gap: 12px; }

.pagination__btn {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface-page);
    color: var(--n-600);
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
}

.pagination__btn:hover { background: var(--n-100); }
.pagination__btn.is-disabled { opacity: .4; pointer-events: none; }

/* ---------- Modal ---------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(14, 28, 24, .45);
}

.modal {
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow-xl);
}

.modal__hd {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--n-150);
}

.modal__title { font-size: 14px; font-weight: 700; }

.modal__close {
    padding: 0 4px;
    border: none;
    background: none;
    color: var(--n-500);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
}

.modal__close:hover { color: var(--n-800); }

.modal__body {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 20px;
}

.modal__fields { display: flex; flex-direction: column; gap: 14px; }
.modal__error { margin: 0; }
.modal__text { margin: 0; font-size: 13px; line-height: 1.5; color: var(--n-700); }

.modal__ft {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 6px;
}

/* ---------- Toast ---------- */
.toast {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 1100;
    max-width: min(420px, calc(100vw - 32px));
    padding: 12px 16px;
    border-radius: var(--radius-md);
    background: var(--ink);
    color: #fff;
    font-size: 13px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(8px);
    pointer-events: none;
    transition: opacity 200ms ease, transform 200ms ease;
}

.toast.show { opacity: 1; transform: none; }
.toast.is-error { background: #B91C1C; }

/* ==================================================================
   Archive components (same as the MasterPanel Archive module)
   ================================================================== */
.arc-inline { display: flex; align-items: center; gap: 8px; }
.arc-inline .select { flex: 1; min-width: 0; }

.arc-optional { text-transform: none; letter-spacing: 0; font-weight: 400; }

.arc-link {
    color: var(--n-800);
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: var(--green);
    text-underline-offset: 3px;
}

.arc-pill {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: var(--mint-100);
    color: var(--green-text);
    font-size: 11px;
    font-weight: 600;
    vertical-align: middle;
}

/* File-type badge */
.arc-ext {
    flex: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--n-100);
    color: var(--n-600);
    font-size: 9.5px;
    font-weight: 700;
    letter-spacing: .3px;
    text-transform: uppercase;
}

.arc-ext--pdf { background: #FEE2E2; color: #DC2626; }
.arc-ext--doc, .arc-ext--docx, .arc-ext--odt, .arc-ext--rtf, .arc-ext--txt { background: #DBEAFE; color: #2563EB; }
.arc-ext--xls, .arc-ext--xlsx, .arc-ext--ods, .arc-ext--csv { background: var(--mint-100); color: var(--green-text); }
.arc-ext--ppt, .arc-ext--pptx, .arc-ext--odp { background: #FFEDD5; color: #EA580C; }
.arc-ext--jpg, .arc-ext--jpeg, .arc-ext--png, .arc-ext--gif, .arc-ext--webp { background: #EDE9FE; color: #7C3AED; }
.arc-ext--zip, .arc-ext--rar, .arc-ext--7z { background: #FEF3C7; color: #B45309; }

/* Stats */
.arc-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.arc-stat {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
}

.arc-stat--primary { background: var(--mint-50); border-color: var(--mint-200); }

.arc-stat__icon {
    flex: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: var(--radius-lg);
    background: var(--ink);
    color: #fff;
}

.arc-stat__label { font-size: 13px; color: var(--n-500); }

.arc-stat__value {
    margin: 4px 0 2px;
    font-size: 28px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--n-900);
}

.arc-stat__sub { font-size: 12px; color: var(--n-400); }

/* Folder chips */
.arc-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.arc-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-full);
    background: #fff;
    color: var(--n-600);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--fast), color var(--fast);
}

.arc-chip:hover { background: var(--mint-50); }
.arc-chip__count { color: var(--n-400); font-size: 11px; }

.arc-chip.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }
.arc-chip.is-active .arc-chip__count { color: rgba(255, 255, 255, .7); }
.arc-chip--trash { margin-left: auto; }

/* Filters */
.arc-filters {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) auto;
    gap: 12px;
    align-items: end;
    margin-bottom: 12px;
}

/* Document table */
.arc-file {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 220px;
}

.arc-file__text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }

.arc-file__name {
    font-weight: 600;
    color: var(--n-800);
    text-decoration: none;
    word-break: break-word;
}

a.arc-file__name:hover { text-decoration: underline; }

.arc-file__note { font-size: 11px; color: var(--n-500); word-break: break-word; }

.arc-actions { text-align: right; white-space: nowrap; }
.arc-actions .btn + .btn { margin-left: 4px; }

.arc-empty {
    padding: 40px 16px;
    text-align: center;
    color: var(--n-500);
    font-size: 13px;
}

.arc-empty strong {
    display: block;
    margin-bottom: 4px;
    color: var(--n-800);
    font-size: 14px;
}

.arc-table.is-loading tbody { opacity: .5; }

/* Upload page */
.arc-upload-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 20px;
    align-items: start;
}

.arc-upload-grid > .card { margin: 0; }

.arc-upload-opts {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr);
    gap: 16px;
    margin-bottom: 16px;
}

/* File input kept in the page but invisible. Not display:none, so phones
   (iOS Safari) still open the picker when the box is tapped. */
.arc-file-input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    pointer-events: none;
}

.arc-drop {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 36px 20px;
    border: 2px dashed var(--mint-200);
    border-radius: var(--radius-lg);
    background: var(--mint-50);
    text-align: center;
    cursor: pointer;
    transition: border-color var(--fast), background var(--fast);
}

.arc-drop:hover,
.arc-drop.is-over { border-color: var(--green); background: var(--mint-hover); }

.arc-drop:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }

.arc-drop__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    margin-bottom: 4px;
    border-radius: var(--radius-lg);
    background: var(--ink);
    color: #fff;
}

.arc-drop__title { font-size: 16px; font-weight: 600; color: var(--n-800); }
.arc-drop__hint { max-width: 520px; font-size: 11px; line-height: 1.5; color: var(--n-500); }

.arc-queue { display: flex; flex-direction: column; gap: 8px; margin-top: 16px; }
.arc-queue:empty { display: none; }

.arc-q-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: #fff;
}

.arc-q-body { flex: 1; min-width: 0; }
.arc-q-top { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }

.arc-q-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
    font-weight: 600;
    color: var(--n-800);
}

.arc-q-status { flex: none; font-size: 11px; color: var(--n-500); }

.arc-progress {
    height: 6px;
    margin-top: 7px;
    overflow: hidden;
    border-radius: var(--radius-full);
    background: var(--n-100);
}

.arc-progress__bar {
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: var(--green);
    transition: width 160ms linear;
}

.arc-q-item.is-done .arc-q-status { color: var(--green-text); font-weight: 600; }
.arc-q-item.is-error { border-color: #FECACA; background: var(--danger-bg); }
.arc-q-item.is-error .arc-q-status { color: var(--danger); white-space: normal; text-align: right; }
.arc-q-item.is-error .arc-progress__bar { background: var(--danger); }
.arc-q-item.is-dup { border-color: #FDE68A; background: var(--warning-bg); }

.arc-q-dup { margin-top: 6px; font-size: 11px; color: #B45309; }
.arc-q-dup .btn { margin-left: 6px; }

.arc-q-remove {
    flex: none;
    width: 28px;
    height: 28px;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--n-400);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
}

.arc-q-remove:hover { background: var(--n-100); color: var(--n-800); }

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

.arc-recent { list-style: none; margin: 0; padding: 0; }

.arc-recent__item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.arc-recent__item:last-child { border-bottom: none; }
.arc-recent__text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }

.arc-recent__name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
    font-weight: 600;
    color: var(--n-800);
    text-decoration: none;
}

.arc-recent__name:hover { text-decoration: underline; }
.arc-recent__empty { padding: 16px 0; }

/* ---------- Login ---------- */
.auth-wrap {
    display: flex;
    justify-content: center;
    padding-top: 24px;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    padding: 30px;
    text-align: center;
}

.auth-card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    margin-bottom: 12px;
    border-radius: var(--radius-lg);
    background: var(--ink);
    color: #fff;
}

.auth-card__title { margin: 0 0 6px; font-size: 20px; font-weight: 700; }
.auth-card__sub { margin: 0 0 20px; font-size: 13px; }

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
    text-align: left;
}

.auth-card__back { display: inline-block; margin-top: 18px; font-size: 12px; }

/* ---------- Admins page ---------- */
.users-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 20px;
    align-items: start;
}

.users-grid .panel { margin: 0; }
.users-side { display: flex; flex-direction: column; gap: 20px; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
    .arc-upload-grid,
    .users-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 900px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        z-index: 50;
        transform: translateX(-100%);
        transition: transform 200ms ease;
        box-shadow: var(--shadow-xl);
    }

    body.nav-open .sidebar { transform: none; }

    body.nav-open .sidebar-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 40;
        background: rgba(14, 28, 24, .35);
    }

    .menu-toggle { display: inline-flex; }
    .top-bar { padding: 10px 16px; gap: 12px; }
    .page-body { padding: 18px 16px 32px; }
    .user-chip__info { display: none; }
    .arc-stats { grid-template-columns: minmax(0, 1fr); }
    .arc-filters { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
    .arc-filters__search { grid-column: 1 / -1; }
    .arc-col-by { display: none; }
}

@media (max-width: 600px) {
    .top-bar__subtitle { display: none; }
    .top-bar__page-title { font-size: 18px; }
    .top-bar__upload span, .top-bar__actions .btn { padding: 0 12px; }
    .arc-upload-opts { grid-template-columns: minmax(0, 1fr); }
    .arc-chip--trash { margin-left: 0; }
    .arc-col-date, .arc-col-folder { display: none; }
    .arc-actions .btn { padding: 0 8px; }
    .auth-card { padding: 22px; }
}