:root{--navy: #0f2138;--navy-2: #16283f;--teal: #18c3ce;--teal-dark: #0fa9b3;--bg: #f3f6f8;--bg-callout: #eaf6f8;--border: #e1e6ea;--text: #16283f;--text-soft: #5b6b7b;--danger: #d64545;--ok: #1f9d55}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--teal-dark);text-decoration:none}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--navy)}.login-card{background:#fff;width:360px;padding:32px 28px;border-radius:8px;box-shadow:0 10px 30px #00000040}.login-logo{display:inline-block;background:var(--navy);color:#fff;font-weight:800;font-size:13px;letter-spacing:.5px;padding:6px 12px;border-radius:4px;margin-bottom:18px}.login-card h1{font-size:18px;margin:0 0 4px;color:var(--navy)}.login-card p.sub{font-size:12.5px;color:var(--text-soft);margin:0 0 20px}.field{margin-bottom:14px}.field label{display:block;font-size:12px;font-weight:700;color:var(--text-soft);margin-bottom:5px}.field input,.field select,.field textarea{width:100%;padding:9px 10px;border:1px solid var(--border);border-radius:5px;font-size:13.5px;font-family:inherit}.btn{border:none;border-radius:5px;padding:10px 16px;font-weight:700;font-size:13px;cursor:pointer;display:inline-flex;align-items:center;gap:6px}.btn-primary{background:var(--teal);color:#08282a}.btn-primary:hover{background:var(--teal-dark);color:#fff}.btn-secondary{background:var(--bg);color:var(--navy);border:1px solid var(--border)}.btn-danger{background:#fdecec;color:var(--danger)}.btn-block{width:100%;justify-content:center}.error-msg{background:#fdecec;color:var(--danger);font-size:12.5px;padding:8px 10px;border-radius:5px;margin-bottom:12px}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--navy);color:#fff;display:flex;flex-direction:column;flex-shrink:0}.sidebar .brand{padding:20px 18px}.sidebar .brand .chip{background:#fff;color:var(--navy);font-weight:800;font-size:12.5px;padding:5px 10px;border-radius:4px;display:inline-block}.sidebar .brand .tag{display:block;font-size:11px;color:var(--teal);margin-top:8px;font-weight:700;letter-spacing:.5px}.sidebar nav{flex:1;padding:10px 0}.sidebar nav a{display:block;padding:11px 20px;color:#cdd7e1;font-size:13.5px;font-weight:600;border-left:3px solid transparent}.sidebar nav a.active,.sidebar nav a:hover{background:var(--navy-2);color:#fff;border-left-color:var(--teal)}.sidebar .logout{padding:16px 20px;border-top:1px solid rgba(255,255,255,.1)}.sidebar .logout button{background:none;border:none;color:#cdd7e1;font-size:12.5px;cursor:pointer;padding:0}.sidebar .logout button:hover{color:#fff}.main-content{flex:1;padding:26px 32px;max-width:1100px}.page-title{font-size:20px;font-weight:800;color:var(--navy);margin:0 0 4px}.page-sub{font-size:12.5px;color:var(--text-soft);margin:0 0 22px}.stats-row{display:flex;gap:16px;margin-bottom:26px;flex-wrap:wrap}.stat-tile{background:#fff;border:1px solid var(--border);border-left:4px solid var(--teal);border-radius:6px;padding:14px 18px;min-width:160px;flex:1}.stat-tile .num{font-size:24px;font-weight:800;color:var(--navy)}.stat-tile .lbl{font-size:11.5px;color:var(--text-soft);font-weight:700;text-transform:uppercase;letter-spacing:.4px}.card{background:#fff;border:1px solid var(--border);border-radius:6px;overflow:hidden;margin-bottom:22px}.card-header{background:var(--navy);color:#fff;font-weight:700;font-size:13px;padding:10px 16px;display:flex;justify-content:space-between;align-items:center}table.data-table{width:100%;border-collapse:collapse;font-size:13px}table.data-table th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.3px;color:var(--text-soft);padding:10px 16px;border-bottom:2px solid var(--border);background:var(--bg)}table.data-table td{padding:10px 16px;border-bottom:1px solid var(--border);vertical-align:middle}table.data-table tr:last-child td{border-bottom:none}table.data-table tr:hover td{background:#fafcfd}.badge{display:inline-block;font-size:10.5px;font-weight:700;padding:3px 9px;border-radius:12px}.badge-green{background:#e7f8ee;color:var(--ok)}.badge-gray{background:#eef1f4;color:var(--text-soft)}.badge-teal{background:var(--bg-callout);color:var(--teal-dark)}.badge-orange{background:#fff3e0;color:#b7791f}.badge-red{background:#fdecec;color:var(--danger)}.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f213880;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:#fff;width:480px;max-width:92vw;border-radius:8px;padding:22px 24px;max-height:88vh;overflow-y:auto}.modal h2{font-size:16px;margin:0 0 16px;color:var(--navy)}.modal .row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.conv-layout{display:flex;gap:18px;height:calc(100vh - 160px)}.conv-list{width:300px;background:#fff;border:1px solid var(--border);border-radius:6px;overflow-y:auto;flex-shrink:0}.conv-list-item{padding:12px 14px;border-bottom:1px solid var(--border);cursor:pointer}.conv-list-item:hover{background:var(--bg)}.conv-list-item.selected{background:var(--bg-callout);border-left:3px solid var(--teal)}.conv-list-item .top{display:flex;justify-content:space-between;font-size:12.5px;font-weight:700;color:var(--navy)}.conv-list-item .preview{font-size:12px;color:var(--text-soft);margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv-panel{flex:1;background:#fff;border:1px solid var(--border);border-radius:6px;display:flex;flex-direction:column}.conv-panel-header{padding:12px 16px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.conv-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px}.bubble{max-width:70%;padding:9px 13px;border-radius:12px;font-size:13.5px;line-height:1.45}.bubble.cliente{align-self:flex-start;background:var(--bg);color:var(--text);border-bottom-left-radius:2px}.bubble.agente{align-self:flex-end;background:var(--teal);color:#06282a;border-bottom-right-radius:2px}.bubble.humano{align-self:flex-end;background:var(--navy);color:#fff;border-bottom-right-radius:2px}.bubble .sender-lbl{display:block;font-size:9.5px;font-weight:700;opacity:.65;margin-bottom:2px;text-transform:uppercase}.conv-input{display:flex;gap:10px;padding:12px 16px;border-top:1px solid var(--border)}.conv-input input{flex:1}.empty-state{color:var(--text-soft);font-size:13px;padding:40px;text-align:center}