/* ── Reset & Base ─────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{height:100%;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{cursor:pointer;border:none;background:none;font-family:inherit}
input,select,textarea{font-family:inherit;font-size:1rem}
textarea{resize:vertical}

/* ── Variables ────────────────────────────────────────── */
:root{
  --bg:       #0f172a;
  --bg2:      #1e293b;
  --bg3:      #273348;
  --border:   #334155;
  --text:     #e2e8f0;
  --text2:    #94a3b8;
  --text3:    #64748b;
  --primary:  #6366f1;
  --primary-h:#4f46e5;
  --green:    #22c55e;
  --red:      #ef4444;
  --orange:   #f97316;
  --yellow:   #eab308;
  --radius:   12px;
  --shadow:   0 4px 20px rgba(0,0,0,.3);
}

/* ── Auth ─────────────────────────────────────────────── */
.auth-body{background:var(--bg);min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px}
.auth-wrap{width:100%;max-width:400px}
.auth-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow)}
.auth-logo{display:flex;align-items:center;gap:10px;margin-bottom:24px;color:var(--text);font-size:1.2rem;font-weight:700}
.auth-title{color:var(--text);font-size:1.4rem;margin-bottom:6px}
.auth-sub{color:var(--text2);font-size:.9rem;margin-bottom:24px}
.auth-footer{color:var(--text3);font-size:.8rem;text-align:center;margin-top:20px}

/* ── Forms ────────────────────────────────────────────── */
.form-group{margin-bottom:16px}
.form-group label{display:block;color:var(--text2);font-size:.85rem;font-weight:500;margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:10px 14px;color:var(--text);transition:.2s;outline:none}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.2)}
.form-group select option{background:var(--bg2)}
.form-group small{display:block;color:var(--text3);font-size:.78rem;margin-top:4px}
.form-group small a{color:var(--primary)}
.form-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.checkbox-label{display:flex;align-items:center;gap:8px;color:var(--text);cursor:pointer;font-size:.9rem}
.checkbox-label input{width:16px;height:16px;accent-color:var(--primary)}

.input-eye{position:relative}
.input-eye input{padding-right:42px}
.input-eye button{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--text3);transition:.2s}
.input-eye button:hover{color:var(--text)}

/* ── Buttons ──────────────────────────────────────────── */
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--primary);color:#fff;border-radius:8px;padding:10px 20px;font-weight:600;font-size:.95rem;transition:.2s;border:none}
.btn-primary:hover{background:var(--primary-h)}
.btn-primary:disabled{opacity:.6;cursor:not-allowed}
.btn-primary.w-full{width:100%}
.btn-primary-sm{display:inline-flex;align-items:center;gap:6px;background:var(--primary);color:#fff;border-radius:8px;padding:7px 16px;font-weight:600;font-size:.85rem;transition:.2s}
.btn-primary-sm:hover{background:var(--primary-h)}
.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text);border-radius:8px;padding:9px 18px;font-size:.9rem;transition:.2s}
.btn-ghost:hover{background:var(--bg3)}
.btn-ghost-sm{background:var(--bg3);border:1px solid var(--border);color:var(--text2);border-radius:7px;padding:6px 14px;font-size:.82rem;transition:.2s}
.btn-ghost-sm:hover{color:var(--text);border-color:var(--text3)}
.btn-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:8px;color:var(--text2);transition:.2s}
.btn-icon:hover{background:var(--bg3);color:var(--text)}
.btn-table{background:var(--bg3);color:var(--text2);border:1px solid var(--border);border-radius:6px;padding:4px 12px;font-size:.8rem;transition:.2s}
.btn-table:hover{color:var(--text);border-color:var(--text3)}
.btn-table.danger{color:#fca5a5}
.btn-table.danger:hover{background:#991b1b;border-color:#991b1b;color:#fff}
.btn-table.warn{color:#fcd34d}
.btn-table.warn:hover{background:#78350f;border-color:#78350f;color:#fff}

/* ── Alerts ───────────────────────────────────────────── */
.alert{border-radius:8px;padding:12px 16px;font-size:.9rem;margin-bottom:20px}
.alert-err{background:#3b0f0f;border:1px solid #7f1d1d;color:#fca5a5}
.alert-ok{background:#052e16;border:1px solid #14532d;color:#86efac}

/* ── Chat Layout ──────────────────────────────────────── */
.chat-body{background:var(--bg);color:var(--text);height:100vh;display:flex;overflow:hidden}

/* Sidebar */
.sidebar{width:260px;background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;height:100vh;flex-shrink:0;transition:transform .25s;z-index:200;position:relative}
.sidebar-top{padding:16px 12px 8px}
.sidebar-logo{display:flex;align-items:center;gap:10px;padding:8px;color:var(--text);font-size:1rem;font-weight:700;margin-bottom:8px}
.btn-new-chat{display:flex;align-items:center;gap:8px;width:100%;background:var(--bg3);border:1px solid var(--border);color:var(--text2);border-radius:8px;padding:9px 14px;font-size:.88rem;transition:.2s}
.btn-new-chat:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.sidebar-section-title{padding:16px 16px 6px;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text3);font-weight:600}
.conversas-list{flex:1;overflow-y:auto;padding:0 8px 8px}
.conversas-list::-webkit-scrollbar{width:4px}
.conversas-list::-webkit-scrollbar-track{background:transparent}
.conversas-list::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}
.conv-item{display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:8px;cursor:pointer;transition:.15s;color:var(--text2);font-size:.85rem;position:relative}
.conv-item:hover{background:var(--bg3);color:var(--text)}
.conv-item.active{background:var(--bg3);color:var(--text)}
.conv-item-title{flex:1;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.conv-actions{display:none;gap:4px}
.conv-item:hover .conv-actions{display:flex}
.conv-action-btn{color:var(--text3);width:20px;height:20px;display:flex;align-items:center;justify-content:center;border-radius:4px}
.conv-action-btn:hover{color:var(--red);background:rgba(239,68,68,.1)}
.loading-conv{display:flex;justify-content:center;padding:20px}

/* User menu */
.sidebar-bottom{padding:12px;border-top:1px solid var(--border)}
.tokens-box{margin-bottom:12px}
.tokens-header{display:flex;justify-content:space-between;font-size:.76rem;color:var(--text3);margin-bottom:6px}
.tokens-val{color:var(--text2)}
.tokens-bar{height:5px;background:var(--bg3);border-radius:10px;overflow:hidden}
.tokens-fill{height:100%;background:var(--primary);border-radius:10px;transition:width .4s}
.tokens-fill.warn{background:var(--orange)}
.tokens-fill.danger{background:var(--red)}

.user-menu{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;cursor:pointer;transition:.2s;position:relative}
.user-menu:hover{background:var(--bg3)}
.user-avatar{width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem;flex-shrink:0}
.user-info{flex:1;min-width:0}
.user-name{display:block;font-size:.85rem;font-weight:600;color:var(--text);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.user-role{display:block;font-size:.72rem;color:var(--text3)}
.user-dropdown{display:none;flex-direction:column;background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:6px;margin-bottom:8px;box-shadow:var(--shadow)}
.user-dropdown.open{display:flex}
.user-dropdown a{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:7px;color:var(--text2);font-size:.88rem;transition:.15s}
.user-dropdown a:hover{background:var(--bg3);color:var(--text)}
.user-dropdown a.danger{color:#f87171}
.user-dropdown a.danger:hover{background:rgba(239,68,68,.1)}
.user-dropdown hr{border-color:var(--border);margin:4px 0}

/* Main chat */
.chat-main{flex:1;display:flex;flex-direction:column;min-width:0;height:100vh;overflow:hidden}
.chat-header{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--border);background:var(--bg);flex-shrink:0}
.model-select{background:var(--bg2);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:7px 12px;font-size:.88rem;cursor:pointer}
.model-select:focus{outline:none;border-color:var(--primary)}

/* Welcome */
.chat-welcome{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 24px;text-align:center;overflow-y:auto}
.welcome-icon{margin-bottom:20px}
.chat-welcome h2{font-size:1.6rem;color:var(--text);margin-bottom:8px}
.chat-welcome p{color:var(--text2);margin-bottom:32px}
.suggestions{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:560px;width:100%}
.suggestion-btn{background:var(--bg2);border:1px solid var(--border);color:var(--text2);border-radius:10px;padding:14px 16px;font-size:.88rem;text-align:left;transition:.2s;cursor:pointer}
.suggestion-btn:hover{background:var(--bg3);border-color:var(--primary);color:var(--text)}

/* Messages */
.messages-wrap{flex:1;overflow-y:auto;padding:0;scroll-behavior:smooth}
.messages-wrap::-webkit-scrollbar{width:6px}
.messages-wrap::-webkit-scrollbar-track{background:transparent}
.messages-wrap::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}
.messages{max-width:780px;margin:0 auto;padding:24px 16px}
.msg{display:flex;gap:14px;margin-bottom:24px;animation:fadeIn .25s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.msg-avatar{width:32px;height:32px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:.82rem;font-weight:700;margin-top:2px}
.msg-avatar.user{background:var(--primary);color:#fff}
.msg-avatar.ai{background:#0e7490;color:#fff}
.msg-body{flex:1;min-width:0}
.msg-name{font-size:.78rem;color:var(--text3);margin-bottom:6px;font-weight:600}
.msg-content{color:var(--text);line-height:1.7;font-size:.95rem}
.msg-content p{margin-bottom:12px}
.msg-content p:last-child{margin-bottom:0}
.msg-content ul,.msg-content ol{padding-left:20px;margin-bottom:12px}
.msg-content li{margin-bottom:4px}
.msg-content code{background:var(--bg3);padding:2px 6px;border-radius:4px;font-size:.88em;font-family:monospace}
.msg-content pre{background:var(--bg2);border:1px solid var(--border);border-radius:8px;padding:16px;overflow-x:auto;margin-bottom:12px}
.msg-content pre code{background:none;padding:0;font-size:.88rem}
.msg-content h1,.msg-content h2,.msg-content h3{color:var(--text);margin:16px 0 8px}
.msg-content blockquote{border-left:3px solid var(--primary);padding-left:14px;color:var(--text2);margin-bottom:12px}
.msg-content strong{color:var(--text);font-weight:600}
.msg-content a{color:var(--primary)}
.msg-meta{display:flex;align-items:center;gap:12px;margin-top:8px}
.msg-tokens{font-size:.72rem;color:var(--text3)}
.msg-copy{font-size:.72rem;color:var(--text3);cursor:pointer;transition:.2s}
.msg-copy:hover{color:var(--text)}
.typing-indicator{display:flex;gap:5px;padding:4px 0}
.typing-dot{width:7px;height:7px;border-radius:50%;background:var(--text3);animation:bounce .8s infinite}
.typing-dot:nth-child(2){animation-delay:.15s}
.typing-dot:nth-child(3){animation-delay:.3s}
@keyframes bounce{0%,60%,100%{transform:none}30%{transform:translateY(-5px)}}

/* Input */
.chat-input-wrap{padding:12px 16px 20px;flex-shrink:0;background:var(--bg)}
.chat-input-box{max-width:780px;margin:0 auto;background:var(--bg2);border:1px solid var(--border);border-radius:14px;display:flex;align-items:flex-end;gap:8px;padding:10px 14px;transition:.2s}
.chat-input-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.15)}
.chat-input-box textarea{flex:1;background:none;border:none;color:var(--text);resize:none;outline:none;max-height:200px;line-height:1.6;font-size:.95rem;overflow-y:auto}
.chat-input-box textarea::placeholder{color:var(--text3)}
.input-actions{display:flex;align-items:center;gap:8px;padding-bottom:2px}
.char-count{font-size:.75rem;color:var(--text3)}
.btn-send{width:34px;height:34px;border-radius:8px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;transition:.2s;flex-shrink:0}
.btn-send:hover:not(:disabled){background:var(--primary-h)}
.btn-send:disabled{background:var(--bg3);color:var(--text3);cursor:not-allowed}
.input-disclaimer{max-width:780px;margin:8px auto 0;font-size:.75rem;color:var(--text3);text-align:center}

/* Spinner */
.spinner-sm{width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* Sidebar overlay (mobile) */
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:150}
.sidebar-overlay.open{display:block}

/* ── Admin Layout ─────────────────────────────────────── */
.admin-body{background:var(--bg);color:var(--text);display:flex;min-height:100vh}
.admin-sidebar{width:220px;background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;min-height:100vh;flex-shrink:0;position:sticky;top:0;z-index:200;transition:transform .25s}
.admin-sidebar-logo{display:flex;align-items:center;gap:10px;padding:20px 16px;font-size:1rem;font-weight:700;color:var(--text);border-bottom:1px solid var(--border)}
.admin-sidebar-logo small{display:block;font-size:.7rem;font-weight:400;color:var(--text3)}
.admin-nav{display:flex;flex-direction:column;padding:12px 8px;gap:2px;flex:1}
.admin-nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;color:var(--text2);font-size:.88rem;transition:.15s}
.admin-nav a:hover{background:var(--bg3);color:var(--text)}
.admin-nav a.active{background:var(--primary);color:#fff}
.admin-nav a.danger{color:#f87171}
.admin-nav a.danger:hover{background:rgba(239,68,68,.1)}
.admin-nav hr{border-color:var(--border);margin:4px 0}

.admin-main{flex:1;display:flex;flex-direction:column;min-width:0;overflow:auto}
.admin-topbar{display:flex;align-items:center;gap:12px;padding:14px 24px;border-bottom:1px solid var(--border);background:var(--bg);position:sticky;top:0;z-index:100}
.topbar-title{font-size:1.1rem;font-weight:700;color:var(--text);flex:1}
.admin-content{padding:24px;flex:1}

/* Stats */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.stat-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;display:flex;align-items:center;gap:16px}
.stat-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.stat-icon.blue{background:#1e3a5f;color:#60a5fa}
.stat-icon.purple{background:#2e1065;color:#a78bfa}
.stat-icon.green{background:#052e16;color:#4ade80}
.stat-icon.orange{background:#431407;color:#fb923c}
.stat-val{font-size:1.5rem;font-weight:700;color:var(--text)}
.stat-lbl{font-size:.8rem;color:var(--text3);margin-top:2px}

/* Admin grid */
.admin-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.admin-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:20px}
.admin-card:last-child{margin-bottom:0}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.card-header h2{font-size:1rem;font-weight:600;color:var(--text)}
.link-sm{color:var(--primary);font-size:.83rem}
.card-section-title{font-size:.9rem;font-weight:600;color:var(--text2);margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid var(--border)}

/* Table */
.admin-table{width:100%;border-collapse:collapse;font-size:.87rem}
.admin-table th{text-align:left;padding:8px 12px;color:var(--text3);font-size:.76rem;text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border)}
.admin-table td{padding:10px 12px;border-bottom:1px solid var(--border);color:var(--text2);vertical-align:middle}
.admin-table tr:last-child td{border-bottom:none}
.admin-table tr:hover td{background:var(--bg3)}
.admin-table td strong{color:var(--text)}
.admin-table td small{color:var(--text3)}

/* Badges */
.badge-role{display:inline-block;padding:3px 10px;border-radius:20px;font-size:.76rem;font-weight:600}
.badge-role.admin{background:#2e1065;color:#c4b5fd}
.badge-role.manager{background:#1e3a5f;color:#93c5fd}
.badge-role.user{background:#1e293b;color:#94a3b8}
.badge-status{display:inline-block;padding:3px 10px;border-radius:20px;font-size:.76rem;font-weight:600}
.badge-status.ativo{background:#052e16;color:#86efac}
.badge-status.inativo{background:#3b1616;color:#fca5a5}

/* Top list */
.top-list{display:flex;flex-direction:column;gap:12px}
.top-item{display:flex;align-items:center;gap:12px}
.top-rank{width:22px;height:22px;border-radius:50%;background:var(--bg3);color:var(--text2);font-size:.75rem;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.top-info{flex:1;min-width:0}
.top-info>span{display:block;font-size:.85rem;color:var(--text);overflow:hidden;white-space:nowrap;text-overflow:ellipsis;margin-bottom:4px}
.top-tokens{font-size:.8rem;color:var(--text3);white-space:nowrap}
.mini-bar{height:4px;background:var(--bg3);border-radius:10px;overflow:hidden}
.mini-fill{height:100%;background:var(--primary);border-radius:10px}
.mini-fill.warn{background:var(--orange)}
.mini-fill.danger{background:var(--red)}

/* Equipes grid */
.equipes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.equipe-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.equipe-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:14px}
.equipe-header h3{font-size:1rem;font-weight:600;color:var(--text);margin-bottom:4px}
.equipe-header p{font-size:.82rem;color:var(--text3)}
.equipe-stats{display:flex;justify-content:space-between;font-size:.8rem;color:var(--text3);margin:10px 0}
.equipe-actions{display:flex;gap:8px;margin-top:14px}
.empty-state{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:40px;text-align:center;color:var(--text3)}

/* Modal */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:500;align-items:center;justify-content:center;padding:16px}
.modal-overlay.open{display:flex}
.modal{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:24px;max-width:560px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow)}
.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.modal-header h3{font-size:1.1rem;font-weight:600;color:var(--text)}
.modal-close{color:var(--text3);font-size:1.1rem;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:.2s}
.modal-close:hover{background:var(--bg3);color:var(--text)}
.modal-footer{display:flex;justify-content:flex-end;gap:10px;margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}

/* Toast */
#toast,#toast-admin{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--bg2);border:1px solid var(--border);color:var(--text);padding:10px 20px;border-radius:10px;font-size:.9rem;z-index:999;opacity:0;pointer-events:none;transition:.3s;white-space:nowrap}
#toast.show,#toast-admin.show{opacity:1}
#toast.ok,#toast-admin.ok{border-color:#166534;color:#86efac}
#toast.err,#toast-admin.err{border-color:#7f1d1d;color:#fca5a5}

/* Admin sidebar overlay (mobile) */
.admin-sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:150}
.admin-sidebar-overlay.open{display:block}

/* ── Responsive ───────────────────────────────────────── */
@media(max-width:1024px){
  .stats-grid{grid-template-columns:1fr 1fr}
  .admin-grid-2{grid-template-columns:1fr}
}

@media(max-width:768px){
  .sidebar{position:fixed;left:0;top:0;transform:translateX(-260px)}
  .sidebar.open{transform:none}
  .admin-sidebar{position:fixed;left:0;top:0;transform:translateX(-220px)}
  .admin-sidebar.open{transform:none}
  .suggestions{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .form-grid-2{grid-template-columns:1fr}
  .admin-table{font-size:.8rem}
}

@media(max-width:480px){
  .stats-grid{grid-template-columns:1fr}
  .admin-content{padding:16px}
  .admin-topbar{padding:12px 16px}
  .equipes-grid{grid-template-columns:1fr}
  .chat-welcome h2{font-size:1.2rem}
}