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var(--space-5)}.container-lg{width:100%;max-width:900px;margin:0 auto;padding:0 var(--space-5)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.card-padded{padding:var(--space-6)}.btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:10px var(--space-5);font-family:var(--font-body);font-size:14px;font-weight:500;letter-spacing:.01em;border:1.5px solid transparent;border-radius:var(--radius);cursor:pointer;transition:background var(--transition),border-color var(--transition),color var(--transition),box-shadow var(--transition),transform var(--transition);white-space:nowrap;text-decoration:none;line-height:1}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.btn:not(:disabled):active{transform:translateY(1px)}.btn-primary{background:var(--color-brand);color:#fff;border-color:var(--color-brand)}.btn-primary:not(:disabled):hover{background:var(--color-brand-light);border-color:var(--color-brand-light);box-shadow:var(--shadow-sm)}.btn-accent{background:var(--color-accent);color:var(--color-brand);border-color:var(--color-accent)}.btn-accent:not(:disabled):hover{opacity:.88}.btn-outline{background:transparent;color:var(--color-brand);border-color:var(--color-border-2)}.btn-outline:not(:disabled):hover{border-color:var(--color-brand);background:var(--color-surface-2)}.btn-ghost{background:transparent;color:var(--color-text-muted);border-color:transparent;padding:10px var(--space-3)}.btn-ghost:not(:disabled):hover{color:var(--color-text);background:var(--color-surface-2)}.btn-danger{background:var(--color-error-bg);color:var(--color-error);border-color:#f5c6c6}.btn-danger:not(:disabled):hover{background:#f5c6c6}.btn-sm{padding:7px var(--space-3);font-size:13px}.btn-lg{padding:14px var(--space-6);font-size:15px}.btn-full{width:100%;justify-content:center}.field{display:flex;flex-direction:column;gap:var(--space-2)}.label{font-size:13px;font-weight:500;letter-spacing:.02em;color:var(--color-text);text-transform:uppercase}.label-required:after{content:" *";color:var(--color-error)}.input,.textarea,.select{font-family:var(--font-body);font-size:15px;color:var(--color-text);background:var(--color-surface);border:1.5px solid var(--color-border-2);border-radius:var(--radius);padding:10px var(--space-3);width:100%;transition:border-color var(--transition),box-shadow 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var(--space-7);max-width:1000px}.message-thread{display:flex;flex-direction:column;gap:var(--space-4)}.message-item{display:flex;flex-direction:column;gap:var(--space-2);max-width:82%}.message-item.from-user{align-self:flex-end;align-items:flex-end}.message-item.from-operator{align-self:flex-start;align-items:flex-start}.message-bubble{padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);font-size:14.5px;line-height:1.65;white-space:pre-wrap}.message-item.from-user .message-bubble{background:var(--color-brand);color:#fff;border-bottom-right-radius:var(--space-1)}.message-item.from-operator .message-bubble{background:var(--color-surface-2);color:var(--color-text);border:1px solid var(--color-border);border-bottom-left-radius:var(--space-1)}.message-meta{font-size:12px;color:var(--color-text-faint)}.audit-entry{display:flex;gap:var(--space-3);align-items:flex-start;padding:var(--space-2) 0;border-bottom:1px solid var(--color-border);font-size:13px}.audit-entry:last-child{border-bottom:none}.audit-dot{width:8px;height:8px;border-radius:50%;background:var(--color-border-2);margin-top:5px;flex-shrink:0}.audit-time{color:var(--color-text-faint);min-width:120px;font-family:var(--font-mono);font-size:12px}.audit-action{color:var(--color-text-muted)}.audit-actor{font-weight:500;color:var(--color-text)}.upload-zone{border:2px dashed var(--color-border-2);border-radius:var(--radius);padding:var(--space-5);text-align:center;cursor:pointer;transition:border-color var(--transition),background var(--transition)}.upload-zone:hover,.upload-zone.drag-over{border-color:var(--color-brand);background:var(--color-surface-2)}.upload-zone input{display:none}.file-list{display:flex;flex-direction:column;gap:var(--space-2);margin-top:var(--space-3)}.file-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-3);background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:13px}.file-item-name{flex:1;color:var(--color-text);font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-item-size{color:var(--color-text-faint);flex-shrink:0}.empty-state{text-align:center;padding:var(--space-8) var(--space-5);color:var(--color-text-faint)}.empty-state-icon{font-size:2.5rem;margin-bottom:var(--space-3);opacity:.4}.page-loading{display:flex;align-items:center;justify-content:center;min-height:60vh;flex-direction:column;gap:var(--space-4);color:var(--color-text-faint)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.fade-in{animation:fadeIn .26s ease}@media(max-width:768px){.portal-layout{flex-direction:column}.sidebar{width:100%;height:auto;position:static;flex-direction:row;flex-wrap:wrap}.sidebar-nav{flex-direction:row;flex-wrap:wrap;padding:var(--space-2)}.portal-content{padding:var(--space-4)}.modal{max-height:95vh}.container,.container-sm,.container-md{padding:0 var(--space-4)}}html[data-contrast=high]{--color-bg: #000000;--color-surface: #0a0a0a;--color-surface-2: #111111;--color-border: #ffffff;--color-border-2: #ffffff;--color-text: #ffffff;--color-text-muted: #eeeeee;--color-text-faint: #cccccc;--color-brand: #ffff00;--color-accent: #ffff00;--color-brand-light: #333300;--color-success: #00ff00;--color-success-bg: #003300;--color-warn: #ffaa00;--color-warn-bg: #332200;--color-error: #ff4444;--color-error-bg: #330000;--color-info-bg: #001133;--status-new: #00aaff;--status-new-bg: #001a33;--status-answered: #00ff88;--status-answered-bg:#003322;--status-returned: #ffaa00;--status-returned-bg:#332200;--status-closed: #aaaaaa;--status-closed-bg: #1a1a1a;--status-fake: #ff88ff;--status-fake-bg: #220022}html[data-contrast=high] .btn-primary{background:#ff0!important;color:#000!important;border:2px solid #ffff00!important}html[data-contrast=high] .btn-outline{border-color:#fff!important;color:#fff!important}html[data-contrast=high] .btn-ghost{color:#fff!important}html[data-contrast=high] .input,html[data-contrast=high] .select,html[data-contrast=high] .textarea{background:#000!important;color:#fff!important;border-color:#fff!important}html[data-contrast=high] .card{border:1px solid #ffffff!important}html[data-contrast=high] table th,html[data-contrast=high] table td{border-color:#555!important}html[data-contrast=high] header,html[data-contrast=high] footer,html[data-contrast=high] .modal-backdrop,html[data-contrast=high] .modal{background:#000!important;border-color:#fff!important}html[data-contrast=high] .modal{border:2px solid #fff!important}html[data-contrast=high] .modal-header{border-bottom-color:#fff!important}html[data-contrast=high] .modal-footer{border-top-color:#fff!important}html[data-contrast=high] .sidebar{background:#0a0a0a!important;border-color:#fff!important}html[data-contrast=high] .sidebar a,html[data-contrast=high] .sidebar button{color:#fff!important}html[data-contrast=high] .sidebar a.active,html[data-contrast=high] .sidebar .active{background:#222!important;color:#ff0!important}html[data-contrast=high] .alert-success{background:#030!important;color:#0f0!important;border-color:#0f0!important}html[data-contrast=high] .alert-error{background:#300!important;color:#f44!important;border-color:#f44!important}html[data-contrast=high] .alert-warn{background:#320!important;color:#fa0!important;border-color:#fa0!important}html[data-contrast=high] .field-hint,html[data-contrast=high] .field-error{color:#ccc!important}html[data-contrast=high] .field-error{color:#f44!important}html[data-contrast=high] .label{color:#fff!important}html[data-contrast=high] .spinner{border-color:#fff!important;border-top-color:#ff0!important}html[data-contrast=high] .status-badge{border:1px solid currentColor!important}html[data-contrast=high] table{border-collapse:collapse!important}html[data-contrast=high] table th{background:#111!important;color:#fff!important}html[data-contrast=high] table tr:hover{background:#1a1a1a!important}html[data-contrast=high] .empty-state{color:#fff!important}html[data-contrast=high] .page-loading{background:#000!important}html[data-contrast=high] input[type=color]{border:2px solid #fff!important}html[data-contrast=high] .btn-danger{background:#f44!important;color:#000!important;border-color:#f44!important}html[data-contrast=high] a{color:#0af!important}html[data-contrast=high] .hash-box{background:#111!important;color:#ff0!important;border-color:#fff!important}html[data-contrast=high] .audit-entry{border-color:#555!important}html[data-contrast=high] .audit-dot{background:#ff0!important}html[data-contrast=high] .message-bubble{background:#111!important;border-color:#555!important;color:#fff!important}html[data-contrast=high] .tag{background:#222!important;color:#fff!important;border-color:#fff!important}body>#root>*{position:relative;z-index:2}.portal-content,.card{position:relative;z-index:2}.modal *{isolation:auto}.modal .input,.modal .select,.modal .textarea{background:#fff!important;color:#1a1917!important;border-color:#c8c3bb!important}.modal .label{color:#1a1917!important;font-weight:600}.modal .field-hint{color:#6b6760!important}.modal .field-error{color:#8b1a1a!important}.modal h2,.modal h3{color:#1a1917!important}.modal p{color:#6b6760!important}.modal .alert-error{background:#fde8e8!important;color:#8b1a1a!important}.modal .alert-success{background:#d8f3dc!important;color:#2d6a4f!important}.modal .btn-primary{background:var(--color-brand)!important;color:#fff!important}.modal .btn-outline{background:transparent!important;color:var(--color-brand)!important;border-color:#c8c3bb!important}