/* ======================================================
   QR Dashboard
 — Design System
   Colors: Black / White / Neutral Grays
   ====================================================== */

:root {
    --qs-black:       #111111;
    --qs-charcoal:    #1e1e1e;
    --qs-dark:        #333333;
    --qs-gray:        #6b7280;
    --qs-gray-light:  #9ca3af;
    --qs-border:      #e8e8e8;
    --qs-white:       #ffffff;
    --qs-sand-xlight: #f6f6f6;
    --qs-sand-light:  #f0f0f0;
    --qs-sand:        #e4e4e4;
    --qs-sand-mid:    #cecece;
    --qs-sand-dark:   #b0b0b0;
    --qs-sand-accent: #888888;
    --qs-success:     #16a34a;
    --qs-danger:      #dc2626;
    --qs-warning:     #d97706;
    --qs-info:        #0284c7;

    --sidebar-width:  256px;
    --navbar-height:  58px;
    --radius-sm:      6px;
    --radius-md:      10px;
    --radius-lg:      16px;
    --shadow-sm:      0 1px 3px rgba(0,0,0,.06);
    --shadow-md:      0 4px 16px rgba(0,0,0,.08);
    --shadow-lg:      0 8px 32px rgba(0,0,0,.1);
    --transition:     .15s ease;
}

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

body {
    margin: 0;
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: .925rem;
    color: var(--qs-black);
    background: var(--qs-sand-xlight);
    line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: none; }

/* ── Layout Shell ── */
.qs-shell {
    display: flex;
    min-height: 100vh;
}

/* ── Sidebar ── */
.qs-sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    background: var(--qs-black);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: transform var(--transition);
}

.qs-sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 20px;
    border-bottom: 1px solid rgba(255,255,255,.06);
}

.qs-sidebar-brand .brand-icon {
    width: 34px;
    height: 34px;
    background: #ffffff;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.qs-sidebar-brand .brand-icon svg {
    width: 18px;
    height: 18px;
    color: var(--qs-black);
}

.qs-sidebar-brand .brand-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--qs-white);
    letter-spacing: -.3px;
}

.qs-sidebar-brand .brand-name span {
    color: rgba(255,255,255,.45);
    font-weight: 400;
}

.qs-sidebar-nav {
    flex: 1;
    padding: 14px 0;
    overflow-y: auto;
}

.qs-nav-section {
    padding: 0 12px;
    margin-bottom: 4px;
}

.qs-nav-label {
    font-size: .62rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: rgba(255,255,255,.25);
    padding: 10px 10px 4px;
}

.qs-nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    color: rgba(255,255,255,.6);
    font-size: .855rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
    margin-bottom: 1px;
}

.qs-nav-item:hover {
    background: rgba(255,255,255,.06);
    color: var(--qs-white);
}

.qs-nav-item.active {
    background: var(--qs-white);
    color: var(--qs-black);
}

.qs-nav-item.active .nav-icon {
    color: var(--qs-black);
}

.qs-nav-item .nav-icon {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
    color: rgba(255,255,255,.4);
}

.qs-nav-item.active .nav-icon { color: var(--qs-black); }

.qs-sidebar-footer {
    padding: 14px 20px;
    border-top: 1px solid rgba(255,255,255,.06);
}

.qs-user-card {
    display: flex;
    align-items: center;
    gap: 10px;
}

.qs-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255,255,255,.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .75rem;
    font-weight: 700;
    color: var(--qs-white);
    flex-shrink: 0;
}

.qs-user-info .user-name {
    font-size: .82rem;
    font-weight: 600;
    color: var(--qs-white);
    line-height: 1.2;
}

.qs-user-info .user-role {
    font-size: .7rem;
    color: rgba(255,255,255,.35);
    text-transform: capitalize;
}

/* ── Main Content ── */
.qs-main {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ── Topbar ── */
.qs-topbar {
    height: var(--navbar-height);
    background: var(--qs-white);
    border-bottom: 1px solid var(--qs-border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.qs-topbar-title {
    font-size: .95rem;
    font-weight: 600;
    color: var(--qs-black);
    flex: 1;
}

.qs-topbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ── Page Content ── */
.qs-content {
    flex: 1;
    padding: 26px 26px;
}

/* ── Cards ── */
.qs-card {
    background: var(--qs-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--qs-border);
    box-shadow: var(--shadow-sm);
}

.qs-card-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--qs-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.qs-card-title {
    font-size: .875rem;
    font-weight: 600;
    color: var(--qs-black);
    margin: 0;
}

.qs-card-body { padding: 20px; }

/* ── Action Cards ── */
.qs-action-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    background: var(--qs-white);
    border: 1px solid var(--qs-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: box-shadow .18s, border-color .18s, transform .18s;
    cursor: pointer;
}
.qs-action-card:hover {
    box-shadow: var(--shadow-md, 0 4px 16px rgba(0,0,0,.08));
    border-color: var(--qs-primary);
    transform: translateY(-2px);
}
.qs-action-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm, 10px);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.qs-action-body {
    flex: 1;
    min-width: 0;
}
.qs-action-title {
    font-size: .875rem;
    font-weight: 600;
    color: var(--qs-black);
    margin: 0 0 2px;
}
.qs-action-desc {
    font-size: .75rem;
    color: var(--qs-gray);
    margin: 0;
}
.qs-action-arrow {
    color: var(--qs-gray);
    flex-shrink: 0;
    transition: transform .18s;
}
.qs-action-card:hover .qs-action-arrow {
    transform: translateX(3px);
    color: var(--qs-primary);
}

/* ── Stat Cards ── */
.qs-stat-card {
    background: var(--qs-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--qs-border);
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    transition: box-shadow var(--transition), transform var(--transition);
}

.qs-stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.qs-stat-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.qs-stat-icon.sand { background: var(--qs-sand-light); }
.qs-stat-icon.dark { background: var(--qs-black); }
.qs-stat-icon.mid  { background: var(--qs-sand); }

.qs-stat-icon svg { width: 20px; height: 20px; }
.qs-stat-icon.dark svg { color: var(--qs-white); }
.qs-stat-icon.sand svg, .qs-stat-icon.mid svg { color: var(--qs-dark); }

.qs-stat-body { flex: 1; }

.qs-stat-value {
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--qs-black);
    line-height: 1;
    margin-bottom: 4px;
}

.qs-stat-label {
    font-size: .76rem;
    color: var(--qs-gray);
    font-weight: 500;
}

/* ── Buttons ── */
.btn-qs {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: .845rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background var(--transition), box-shadow var(--transition), opacity var(--transition);
    white-space: nowrap;
    line-height: 1.4;
}

.btn-qs:active { opacity: .85; }

.btn-qs-primary {
    background: var(--qs-black);
    color: var(--qs-white);
}
.btn-qs-primary:hover {
    background: var(--qs-charcoal);
    color: var(--qs-white);
}

.btn-qs-sand {
    background: var(--qs-sand);
    color: var(--qs-black);
}
.btn-qs-sand:hover {
    background: var(--qs-sand-mid);
    color: var(--qs-black);
}

.btn-qs-outline {
    background: transparent;
    color: var(--qs-dark);
    border: 1.5px solid var(--qs-border);
}
.btn-qs-outline:hover {
    background: var(--qs-sand-xlight);
    border-color: var(--qs-sand-mid);
    color: var(--qs-black);
}

.btn-qs-danger {
    background: var(--qs-danger);
    color: var(--qs-white);
}
.btn-qs-danger:hover { background: #b91c1c; color: var(--qs-white); }

.btn-qs-sm { padding: 5px 11px; font-size: .79rem; }
.btn-qs-lg { padding: 10px 22px; font-size: .925rem; }

/* ── QR Card Grid ── */
.qs-qr-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.qs-qr-card {
    background: var(--qs-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--qs-border);
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
    cursor: pointer;
}

.qs-qr-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.qs-qr-preview {
    background: var(--qs-sand-xlight);
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 155px;
    border-bottom: 1px solid var(--qs-border);
    position: relative;
}

.qs-qr-preview svg, .qs-qr-preview canvas { max-width: 120px; max-height: 120px; }

.qs-qr-type-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: .62rem;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 99px;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.qs-qr-type-badge.static { background: var(--qs-sand-light); color: var(--qs-dark); }
.qs-qr-type-badge.dynamic { background: var(--qs-black); color: var(--qs-white); }

.qs-qr-info {
    padding: 12px 14px 10px;
}

.qs-qr-name {
    font-size: .84rem;
    font-weight: 600;
    color: var(--qs-black);
    margin: 0 0 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.qs-qr-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: .71rem;
    color: var(--qs-gray);
}

.qs-qr-actions {
    display: flex;
    gap: 6px;
    padding: 9px 12px;
    border-top: 1px solid var(--qs-border);
    background: var(--qs-sand-xlight);
}

/* ── Folder Cards ── */
.qs-folder-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 14px;
}

.qs-folder-card {
    background: var(--qs-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--qs-border);
    padding: 18px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: box-shadow var(--transition), transform var(--transition);
}

.qs-folder-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.qs-folder-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.qs-folder-icon svg { width: 20px; height: 20px; color: var(--qs-white); }

.qs-folder-name {
    font-size: .84rem;
    font-weight: 600;
    color: var(--qs-black);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.qs-folder-count {
    font-size: .71rem;
    color: var(--qs-gray);
}

/* ── Template Cards ── */
.qs-template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 14px;
}

.qs-template-card {
    background: var(--qs-white);
    border-radius: var(--radius-md);
    border: 1.5px solid var(--qs-border);
    overflow: hidden;
    cursor: pointer;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.qs-template-card:hover {
    border-color: var(--qs-sand-mid);
    box-shadow: var(--shadow-md);
}

.qs-template-card.selected {
    border-color: var(--qs-black);
}

.qs-template-preview {
    background: var(--qs-sand-xlight);
    padding: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    border-bottom: 1px solid var(--qs-border);
}

.qs-template-preview svg { max-width: 90px; max-height: 90px; }

.qs-template-info {
    padding: 10px 12px;
}

.qs-template-name {
    font-size: .84rem;
    font-weight: 600;
    color: var(--qs-black);
    margin: 0 0 2px;
}

.qs-template-desc {
    font-size: .71rem;
    color: var(--qs-gray);
}

/* ── QR Editor ── */
.qs-editor-layout {
    display: grid;
    grid-template-columns: 1fr 330px;
    gap: 22px;
    align-items: start;
}

.qs-editor-panel {
    background: var(--qs-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--qs-border);
}

.qs-editor-preview-panel {
    position: sticky;
    top: calc(var(--navbar-height) + 16px);
}

.qs-preview-box {
    background: var(--qs-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--qs-border);
    padding: 22px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.qs-preview-box .preview-title {
    font-size: .75rem;
    font-weight: 700;
    color: var(--qs-gray);
    text-transform: uppercase;
    letter-spacing: .08em;
    width: 100%;
}

.qs-preview-container {
    width: 252px;
    height: 252px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--qs-sand-xlight);
    border-radius: var(--radius-sm);
    border: 1px solid var(--qs-border);
}

.qs-preview-container svg,
.qs-preview-container canvas {
    max-width: 232px;
    max-height: 232px;
}

/* ── Tabs ── */
.qs-tabs {
    display: flex;
    gap: 0;
    padding: 12px 18px 0;
    border-bottom: 1px solid var(--qs-border);
    overflow-x: auto;
    scrollbar-width: none;
}

.qs-tabs::-webkit-scrollbar { display: none; }

.qs-tab {
    padding: 7px 13px;
    font-size: .8rem;
    font-weight: 600;
    color: var(--qs-gray);
    cursor: pointer;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    border: 1px solid transparent;
    border-bottom: 2px solid transparent;
    transition: color var(--transition);
    white-space: nowrap;
    background: transparent;
}

.qs-tab:hover { color: var(--qs-black); }

.qs-tab.active {
    color: var(--qs-black);
    border-color: var(--qs-border);
    border-bottom-color: var(--qs-white);
    background: var(--qs-white);
    margin-bottom: -1px;
}

.qs-tab-content { display: none; padding: 20px; }
.qs-tab-content.active { display: block; }

/* ── Form Controls ── */
.qs-form-group { margin-bottom: 16px; }

.qs-label {
    display: block;
    font-size: .79rem;
    font-weight: 600;
    color: var(--qs-dark);
    margin-bottom: 6px;
}

.qs-input,
.qs-select,
.qs-textarea {
    width: 100%;
    padding: 8px 11px;
    border: 1.5px solid var(--qs-border);
    border-radius: var(--radius-sm);
    font-size: .875rem;
    color: var(--qs-black);
    background: var(--qs-white);
    transition: border-color var(--transition), box-shadow var(--transition);
    font-family: inherit;
    line-height: 1.5;
}

.qs-input:focus,
.qs-select:focus,
.qs-textarea:focus {
    outline: none;
    border-color: var(--qs-dark);
    box-shadow: 0 0 0 3px rgba(0,0,0,.06);
}

.qs-textarea { resize: vertical; min-height: 80px; }

/* Range slider */
.qs-range {
    -webkit-appearance: none;
    width: 100%;
    height: 4px;
    border-radius: 99px;
    background: var(--qs-sand);
    outline: none;
    cursor: pointer;
}

.qs-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 17px;
    height: 17px;
    border-radius: 50%;
    background: var(--qs-black);
    cursor: pointer;
    border: 2px solid var(--qs-white);
    box-shadow: 0 0 0 1px var(--qs-sand-mid);
}

/* Color swatch row */
.qs-color-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.qs-color-swatch {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--qs-border);
    cursor: pointer;
    flex-shrink: 0;
    padding: 0;
    overflow: hidden;
}

.qs-color-swatch input[type="color"] {
    width: 100%;
    height: 100%;
    border: none;
    padding: 0;
    cursor: pointer;
    opacity: 0;
    position: absolute;
}

/* Dot/corner picker grid */
.qs-style-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.qs-style-btn {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--qs-border);
    background: var(--qs-sand-xlight);
    cursor: pointer;
    padding: 6px;
    transition: border-color var(--transition), background var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qs-style-btn:hover { border-color: var(--qs-sand-dark); background: var(--qs-sand-light); }
.qs-style-btn.active { border-color: var(--qs-black); background: var(--qs-sand-light); }
.qs-style-btn img { width: 34px; height: 34px; }
.qs-style-btn span { font-size: .65rem; font-weight: 700; color: var(--qs-dark); }

/* Small variant for per-corner pickers */
.qs-style-btn-sm { width: 32px; height: 32px; padding: 4px; }
.qs-style-btn-sm img { width: 20px; height: 20px; }

/* Corner version grid — same as style grid */
.qs-corner-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.qs-corner-btn {
    padding: 5px 9px;
    font-size: .72rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--qs-border);
    background: var(--qs-sand-xlight);
    cursor: pointer;
    transition: all var(--transition);
    color: var(--qs-dark);
}

.qs-corner-btn:hover { border-color: var(--qs-sand-mid); background: var(--qs-sand-light); }
.qs-corner-btn.active { border-color: var(--qs-black); background: var(--qs-black); color: var(--qs-white); }

/* Toggle */
.qs-toggle-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 0;
}

.qs-toggle {
    position: relative;
    width: 40px;
    height: 22px;
    flex-shrink: 0;
}

.qs-toggle input { opacity: 0; width: 0; height: 0; }

.qs-toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--qs-border);
    border-radius: 99px;
    transition: background var(--transition);
}

.qs-toggle-slider::before {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    left: 3px;
    top: 3px;
    background: var(--qs-white);
    border-radius: 50%;
    transition: transform var(--transition);
    box-shadow: var(--shadow-sm);
}

.qs-toggle input:checked + .qs-toggle-slider { background: var(--qs-black); }
.qs-toggle input:checked + .qs-toggle-slider::before { transform: translateX(18px); }

/* ── Download options ── */
.qs-download-row {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* ── Alerts / Toasts ── */
.qs-alert {
    padding: 11px 16px;
    border-radius: var(--radius-sm);
    font-size: .855rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    border: 1px solid transparent;
}

.qs-alert-success { background: #f0fdf4; color: #15803d; border-color: #bbf7d0; }
.qs-alert-danger  { background: #fef2f2; color: #b91c1c; border-color: #fecaca; }
.qs-alert-warning { background: #fffbeb; color: #92400e; border-color: #fde68a; }
.qs-alert-info    { background: #f0f9ff; color: #0c4a6e; border-color: #bae6fd; }

.qs-alert .alert-close {
    margin-left: auto;
    cursor: pointer;
    opacity: .6;
    font-size: 1.1rem;
    line-height: 1;
    background: none;
    border: none;
    color: inherit;
}

/* ── Badge ── */
.qs-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 99px;
    font-size: .66rem;
    font-weight: 700;
    letter-spacing: .03em;
    text-transform: uppercase;
}

.qs-badge-sand   { background: var(--qs-sand-light); color: var(--qs-dark); }
.qs-badge-dark   { background: var(--qs-black); color: var(--qs-white); }
.qs-badge-success { background: #dcfce7; color: #15803d; }
.qs-badge-danger  { background: #fee2e2; color: #b91c1c; }

/* ── Table ── */
.qs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .875rem;
}

.qs-table th {
    text-align: left;
    padding: 10px 14px;
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--qs-gray);
    background: var(--qs-sand-xlight);
    border-bottom: 1px solid var(--qs-border);
}

.qs-table td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--qs-border);
    color: var(--qs-black);
    vertical-align: middle;
}

.qs-table tbody tr:hover { background: var(--qs-sand-xlight); }
.qs-table tbody tr:last-child td { border-bottom: none; }

/* ── Pagination ── */
.qs-pagination { display: flex; gap: 4px; align-items: center; justify-content: center; }
.qs-page-btn {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--qs-border);
    font-size: .82rem;
    font-weight: 600;
    color: var(--qs-gray);
    background: var(--qs-white);
    cursor: pointer;
    transition: all var(--transition);
}
.qs-page-btn:hover { border-color: var(--qs-sand-mid); color: var(--qs-black); }
.qs-page-btn.active { background: var(--qs-black); color: var(--qs-white); border-color: var(--qs-black); }
.qs-page-btn:disabled { opacity: .4; cursor: not-allowed; }

/* ── Auth Layout ── */
.qs-auth-wrap {
    min-height: 100vh;
    display: flex;
    background: var(--qs-sand-xlight);
}

.qs-auth-left {
    flex: 1;
    background: var(--qs-black);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.qs-auth-brand {
    position: relative;
    text-align: center;
    color: var(--qs-white);
}

.qs-auth-brand .brand-logo {
    width: 68px;
    height: 68px;
    background: var(--qs-white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.qs-auth-brand .brand-logo svg { width: 38px; height: 38px; color: var(--qs-black); }

.qs-auth-brand h1 {
    font-size: 1.9rem;
    font-weight: 800;
    margin: 0 0 8px;
    letter-spacing: -.5px;
}

.qs-auth-brand h1 span { color: rgba(255,255,255,.4); font-weight: 400; }

.qs-auth-brand p {
    color: rgba(255,255,255,.45);
    font-size: .875rem;
    margin: 0;
}

.qs-auth-right {
    width: 460px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px;
    background: var(--qs-white);
}

.qs-auth-form-wrap { width: 100%; max-width: 360px; }

.qs-auth-form-wrap h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--qs-black);
    margin: 0 0 5px;
}

.qs-auth-form-wrap p.subtitle {
    color: var(--qs-gray);
    font-size: .875rem;
    margin: 0 0 26px;
}

/* ── Upload zone ── */
.qs-upload-zone {
    border: 2px dashed var(--qs-sand-mid);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition);
    background: var(--qs-sand-xlight);
}

.qs-upload-zone:hover, .qs-upload-zone.dragover {
    border-color: var(--qs-black);
    background: var(--qs-sand-light);
}

.qs-upload-zone .upload-icon {
    width: 46px;
    height: 46px;
    margin: 0 auto 12px;
    color: var(--qs-sand-dark);
}

.qs-upload-zone p { color: var(--qs-gray); margin: 0; font-size: .875rem; }
.qs-upload-zone strong { color: var(--qs-black); }

/* ── Progress ── */
.qs-progress {
    height: 6px;
    border-radius: 99px;
    background: var(--qs-sand);
    overflow: hidden;
}

.qs-progress-bar {
    height: 100%;
    background: var(--qs-black);
    border-radius: 99px;
    transition: width .3s ease;
}

/* ── Divider ── */
.qs-divider {
    border: none;
    border-top: 1px solid var(--qs-border);
    margin: 18px 0;
}

/* ── Individual corners panel ── */
.qs-corners-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.qs-corner-group {
    background: var(--qs-sand-xlight);
    border-radius: var(--radius-sm);
    padding: 12px;
    border: 1px solid var(--qs-border);
}

.qs-corner-group-full { grid-column: 1 / -1; }

.qs-corner-group-title {
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--qs-gray);
    margin: 0 0 10px;
}

/* ── Sidebar collapse mobile ── */
.qs-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 999;
}

.qs-sidebar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    color: var(--qs-black);
}

/* ── Responsive ── */
@media (max-width: 1200px) {
    .qs-editor-layout { grid-template-columns: 1fr; }
    .qs-editor-preview-panel { position: relative; top: auto; }
}

@media (max-width: 900px) {
    .qs-sidebar { transform: translateX(-100%); }
    .qs-sidebar.open { transform: translateX(0); }
    .qs-sidebar-overlay { display: block; }
    .qs-main { margin-left: 0; }
    .qs-sidebar-toggle { display: flex; }
    .qs-content { padding: 16px; }
    .qs-auth-left { display: none; }
    .qs-auth-right { width: 100%; }
}

@media (max-width: 600px) {
    .qs-qr-grid { grid-template-columns: 1fr 1fr; }
    .qs-folder-grid { grid-template-columns: 1fr 1fr; }
}

/* ── Utilities ── */
.text-sand  { color: var(--qs-sand-accent); }
.text-muted { color: var(--qs-gray); }
.text-sm    { font-size: .8rem; }
.text-xs    { font-size: .71rem; }
.fw-600     { font-weight: 600; }
.fw-700     { font-weight: 700; }
.gap-2      { gap: 8px; }
.gap-3      { gap: 12px; }
.d-flex     { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-1     { flex: 1; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.empty-state {
    text-align: center;
    padding: 56px 20px;
    color: var(--qs-gray);
}
.empty-state .empty-icon { width: 52px; height: 52px; margin: 0 auto 14px; opacity: .25; }
.empty-state h3 { font-size: .975rem; font-weight: 600; color: var(--qs-dark); margin: 0 0 6px; }
.empty-state p  { font-size: .875rem; margin: 0 0 18px; }