:root{--bg: #0b141a;--bg-secondary: #111b21;--bg-tertiary: #1f2c34;--bg-hover: #2a3942;--accent: #00a884;--accent-hover: #06cf9c;--text: #e9edef;--text-muted: #8696a0;--border: #2a3942;--in-bubble: #202c33;--out-bubble: #005c4b;--danger: #ea4335;--radius: 12px;--font: "DM Sans", system-ui, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh}.loading-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--text-muted)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(ellipse at top,#1a3a2f 0%,var(--bg) 60%)}.login-card{width:100%;max-width:400px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:16px;padding:32px}.login-brand{text-align:center;margin-bottom:28px}.brand-icon{width:56px;height:56px;background:var(--accent);color:#fff;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;margin-bottom:12px}.login-brand h1{font-size:22px;margin-bottom:4px}.login-brand p{color:var(--text-muted);font-size:14px}.login-card form label{display:block;margin-bottom:16px;font-size:13px;color:var(--text-muted)}.login-card input{display:block;width:100%;margin-top:6px;padding:12px 14px;border:1px solid var(--border);border-radius:8px;background:var(--bg-tertiary);color:var(--text);font-size:15px}.login-card input:focus{outline:none;border-color:var(--accent)}.login-card button[type=submit]{width:100%;padding:12px;background:var(--accent);color:#fff;border:none;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;margin-top:8px}.login-card button[type=submit]:hover:not(:disabled){background:var(--accent-hover)}.login-card button:disabled{opacity:.6;cursor:not-allowed}.inbox-layout{display:flex;height:100vh;max-height:100dvh}.sidebar{width:360px;min-width:300px;border-right:1px solid var(--border);display:flex;flex-direction:column;background:var(--bg-secondary)}.sidebar-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.sidebar-header h2{font-size:18px}.user-badge{font-size:12px;color:var(--text-muted)}.header-actions{display:flex;gap:8px}.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text-muted);padding:6px 12px;border-radius:6px;font-size:13px;cursor:pointer;text-decoration:none}.btn-ghost:hover{background:var(--bg-hover);color:var(--text)}.conversation-list{list-style:none;overflow-y:auto;flex:1}.conversation-item{width:100%;display:flex;gap:12px;padding:12px 16px;border:none;background:transparent;color:inherit;text-align:left;cursor:pointer;border-bottom:1px solid var(--border)}.conversation-item:hover,.conversation-item.active{background:var(--bg-hover)}.avatar{width:48px;height:48px;border-radius:50%;background:var(--bg-tertiary);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;color:var(--accent);flex-shrink:0}.conversation-meta{flex:1;min-width:0}.conversation-top,.conversation-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px}.conversation-name{font-weight:600;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-time{font-size:12px;color:var(--text-muted);flex-shrink:0}.conversation-preview{font-size:13px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}.unread-badge{background:var(--accent);color:#fff;font-size:11px;font-weight:700;padding:2px 7px;border-radius:10px;flex-shrink:0}.account-tag{display:inline-block;margin-top:4px;font-size:11px;color:var(--text-muted);background:var(--bg-tertiary);padding:2px 8px;border-radius:4px}.list-loading,.list-empty{padding:32px 20px;text-align:center;color:var(--text-muted);font-size:14px}.list-empty .muted{margin-top:8px;font-size:13px}.chat-area{flex:1;display:flex;flex-direction:column;background:var(--bg);min-width:0}.empty-chat{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-muted);padding:24px;text-align:center}.empty-chat-icon{font-size:48px;margin-bottom:16px}.empty-chat h3{color:var(--text);margin-bottom:8px}.chat-panel{display:flex;flex-direction:column;height:100%}.chat-header{padding:12px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px;background:var(--bg-secondary)}.back-btn{display:none;background:none;border:none;color:var(--text);font-size:20px;cursor:pointer;padding:4px 8px}.chat-header h3{font-size:16px}.chat-subtitle{font-size:12px;color:var(--text-muted)}.messages-container{flex:1;overflow-y:auto;padding:16px 20px;display:flex;flex-direction:column;gap:8px;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%231f2c34' fill-opacity='0.3'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")}.message-bubble{max-width:75%;display:flex;flex-direction:column}.message-bubble.in{align-self:flex-start}.message-bubble.out{align-self:flex-end}.bubble-content{padding:8px 12px;border-radius:var(--radius);background:var(--in-bubble);word-break:break-word}.message-bubble.out .bubble-content{background:var(--out-bubble)}.bubble-text{font-size:14px;line-height:1.45;white-space:pre-wrap}.bubble-time{font-size:11px;color:var(--text-muted);margin-top:4px;padding:0 4px}.message-bubble.out .bubble-time{text-align:right}.media-image{max-width:280px;max-height:280px;border-radius:8px;display:block}.media-audio,.media-video{max-width:280px;display:block}.doc-link{color:var(--accent-hover);text-decoration:none;font-size:14px}.doc-link:hover{text-decoration:underline}.window-warning{padding:10px 16px;background:#3d2c00;color:#fbbf24;font-size:13px;text-align:center}.reply-form{display:flex;gap:8px;padding:12px 16px;background:var(--bg-secondary);border-top:1px solid var(--border)}.reply-form input{flex:1;padding:12px 16px;border:none;border-radius:24px;background:var(--bg-tertiary);color:var(--text);font-size:15px}.reply-form input:focus{outline:none}.reply-form button{padding:12px 20px;background:var(--accent);color:#fff;border:none;border-radius:24px;font-weight:600;cursor:pointer}.reply-form button:hover:not(:disabled){background:var(--accent-hover)}.reply-form button:disabled{opacity:.5;cursor:not-allowed}.error-banner{background:#ea433526;color:#f87171;padding:10px 14px;border-radius:8px;font-size:13px;margin-bottom:12px}.chat-error{margin:0 16px 8px}.success-banner{background:#00a88426;color:var(--accent-hover);padding:10px 14px;border-radius:8px;font-size:13px;margin-bottom:12px}.admin-page{max-width:900px;margin:0 auto;padding:24px;min-height:100vh}.admin-header{display:flex;align-items:center;gap:16px;margin-bottom:24px}.admin-header h1{font-size:24px}.admin-tabs{display:flex;gap:8px;margin-bottom:24px}.admin-tabs button{padding:10px 20px;background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-muted);border-radius:8px;cursor:pointer}.admin-tabs button.active{background:var(--accent);border-color:var(--accent);color:#fff}.admin-section h2{font-size:18px;margin-bottom:16px}.admin-section h3{font-size:15px;margin:24px 0 12px;color:var(--text-muted)}.admin-table{width:100%;border-collapse:collapse;font-size:14px}.admin-table th,.admin-table td{padding:12px;text-align:left;border-bottom:1px solid var(--border)}.admin-table th{color:var(--text-muted);font-weight:500}.admin-table code{font-size:12px;background:var(--bg-tertiary);padding:2px 6px;border-radius:4px}.role-badge,.status-badge{font-size:11px;padding:3px 8px;border-radius:4px;text-transform:uppercase;font-weight:600}.role-badge.admin{background:#00a88433;color:var(--accent-hover)}.role-badge.agent{background:var(--bg-tertiary);color:var(--text-muted)}.status-badge.active{background:#00a88433;color:var(--accent-hover)}.status-badge.inactive{background:#ea433533;color:#f87171}.admin-form{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;align-items:end}.admin-form input,.admin-form select{padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--bg-secondary);color:var(--text);font-size:14px}.admin-form button{padding:10px 16px;background:var(--accent);color:#fff;border:none;border-radius:8px;font-weight:600;cursor:pointer}.btn-danger-sm{padding:4px 10px;background:transparent;border:1px solid var(--danger);color:#f87171;border-radius:4px;font-size:12px;cursor:pointer}@media(max-width:768px){.sidebar{width:100%;min-width:unset}.sidebar-hidden-mobile,.chat-hidden-mobile .empty-chat,.chat-hidden-mobile{display:none}.back-btn{display:block}.admin-form{grid-template-columns:1fr}}