:root {
  --bg: #f1f5f9; --card: #ffffff; --text: #1e293b; --muted: #64748b;
  --border: #e2e8f0; --sidebar: #0f172a; --sidebar-text: #f8fafc;
  --primary: #2563eb; --success: #10b981; --warning: #f59e0b;
  --danger: #ef4444; --purple: #8b5cf6; --teal: #14b8a6;
  --input-bg: #f8fafc; --table-head: #f8fafc; --table-row-alt: #f8fafc;
  --shadow: 0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.08);
}
body.dark {
  --bg: #0b1120; --card: #1e293b; --text: #f1f5f9; --muted: #94a3b8;
  --border: #334155; --sidebar: #020617; --input-bg: #0f172a;
  --table-head: #0f172a; --table-row-alt: #162032;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);transition:background .2s,color .2s;}

/* ── LAYOUT ── */
#app{display:flex;height:100vh;overflow:hidden;}
aside{width:260px;background:var(--sidebar);color:var(--sidebar-text);display:flex;flex-direction:column;padding:20px 16px;flex-shrink:0;overflow-y:auto;z-index:200;transition:transform .3s;}
main{flex:1;overflow-y:auto;display:flex;flex-direction:column;}
header{padding:16px 24px;background:var(--card);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-shrink:0;}
.page{padding:24px;flex:1;}

/* ── SIDEBAR ── */
.brand{font-size:1.1rem;font-weight:800;letter-spacing:-.5px;display:flex;align-items:center;gap:10px;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.08);}
.brand span{color:var(--primary);}
nav{flex:1;}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;cursor:pointer;color:#94a3b8;font-size:.9rem;font-weight:500;transition:all .15s;margin-bottom:2px;border:none;background:none;width:100%;text-align:left;}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-item.active{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(37,99,235,.35);}
.nav-item i{width:18px;text-align:center;}
.nav-badge{margin-left:auto;background:var(--danger);color:#fff;font-size:.65rem;padding:2px 6px;border-radius:10px;}
.sidebar-footer{margin-top:auto;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);}
.user-box{display:flex;align-items:center;gap:10px;padding:8px;}
.avatar{width:34px;height:34px;background:var(--primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;flex-shrink:0;}
.user-info{flex:1;min-width:0;}
.user-name{font-size:.85rem;font-weight:600;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.user-role{font-size:.7rem;color:#94a3b8;}
.btn-logout{background:none;border:none;color:#64748b;cursor:pointer;padding:6px;border-radius:6px;}
.btn-logout:hover{color:#ef4444;}
.theme-toggle{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;border-radius:8px;cursor:pointer;color:#94a3b8;font-size:.85rem;margin-bottom:8px;}
.theme-toggle:hover{background:rgba(255,255,255,.06);}
.toggle-pill{width:36px;height:20px;background:#334155;border-radius:10px;position:relative;transition:background .2s;}
.toggle-pill.on{background:var(--primary);}
.toggle-dot{position:absolute;width:14px;height:14px;background:#fff;border-radius:50%;top:3px;left:3px;transition:transform .2s;}
.toggle-pill.on .toggle-dot{transform:translateX(16px);}

/* ── CARDS KPI ── */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px;}
.kpi{background:var(--card);border-radius:12px;padding:20px;border:1px solid var(--border);box-shadow:var(--shadow);position:relative;overflow:hidden;transition:transform .15s;}
.kpi:hover{transform:translateY(-2px);}
.kpi-label{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin-bottom:6px;}
.kpi-val{font-size:1.7rem;font-weight:800;letter-spacing:-.5px;margin-bottom:4px;}
.kpi-sub{font-size:.8rem;color:var(--muted);}
.kpi-icon{position:absolute;right:-10px;bottom:-10px;font-size:4rem;opacity:.05;}

/* ── GRID ── */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:16px;}
.grid-big{display:grid;grid-template-columns:2fr 1fr;gap:16px;margin-bottom:16px;}

/* ── CARD GENÉRICO ── */
.card{background:var(--card);border-radius:12px;padding:20px;border:1px solid var(--border);box-shadow:var(--shadow);}
.card-title{font-size:.95rem;font-weight:700;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px;}
.chart-wrap{position:relative;height:260px;}

/* ── TABELAS ── */
.tbl-wrap{overflow-x:auto;}
table{width:100%;border-collapse:collapse;font-size:.88rem;}
thead th{background:var(--table-head);padding:10px 12px;text-align:left;font-size:.72rem;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);position:sticky;top:0;z-index:5;white-space:nowrap;}
tbody tr{border-bottom:1px solid var(--border);transition:background .1s;}
tbody tr:hover{background:var(--table-row-alt);}
tbody td{padding:11px 12px;vertical-align:middle;}
.tbl-scroll{overflow-y:auto;max-height:380px;}

/* ── BADGES ── */
.badge{display:inline-block;padding:3px 8px;border-radius:20px;font-size:.72rem;font-weight:700;white-space:nowrap;}
.badge-pago{background:#dcfce7;color:#166534;}
.badge-pendente{background:#fef9c3;color:#854d0e;}
.badge-atrasado{background:#fee2e2;color:#991b1b;}
.badge-cancelado{background:#f1f5f9;color:#64748b;}
.badge-isento{background:#ede9fe;color:#5b21b6;}
.badge-emitida{background:#dbeafe;color:#1e40af;}
body.dark .badge-pago{background:#14532d;color:#86efac;}
body.dark .badge-pendente{background:#422006;color:#fcd34d;}
body.dark .badge-atrasado{background:#450a0a;color:#fca5a5;}
body.dark .badge-cancelado{background:#1e293b;color:#94a3b8;}
body.dark .badge-emitida{background:#1e3a8a;color:#93c5fd;}

/* ── BOTÕES ── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:8px;border:none;cursor:pointer;font-size:.88rem;font-weight:600;transition:all .15s;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{filter:brightness(1.1);}
.btn-success{background:var(--success);color:#fff;}
.btn-success:hover{filter:brightness(1.1);}
.btn-danger{background:var(--danger);color:#fff;}
.btn-danger:hover{filter:brightness(1.1);}
.btn-ghost{background:var(--card);color:var(--text);border:1px solid var(--border);}
.btn-ghost:hover{background:var(--bg);}
.btn-sm{padding:6px 10px;font-size:.8rem;}
.btn-icon{width:32px;height:32px;padding:0;justify-content:center;border-radius:6px;}
.fab{position:fixed;right:20px;bottom:80px;width:56px;height:56px;border-radius:50%;background:var(--primary);color:#fff;border:none;font-size:1.4rem;cursor:pointer;box-shadow:0 4px 16px rgba(37,99,235,.5);z-index:100;display:none;align-items:center;justify-content:center;}

/* ── FORMULÁRIOS ── */
.form-group{margin-bottom:14px;}
label{display:block;font-size:.8rem;font-weight:600;margin-bottom:5px;color:var(--muted);}
input,select,textarea{width:100%;padding:9px 12px;background:var(--input-bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:.9rem;outline:none;transition:border .15s;}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1);}
.form-row{display:grid;gap:12px;}
.form-row.c2{grid-template-columns:1fr 1fr;}
.form-row.c3{grid-template-columns:1fr 1fr 1fr;}
textarea{min-height:80px;resize:vertical;}

/* ── MODAL ── */
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:300;display:flex;align-items:center;justify-content:center;padding:16px;backdrop-filter:blur(3px);}
.modal{background:var(--card);border-radius:16px;width:100%;max-width:640px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg);}
.modal-header{padding:20px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:var(--card);z-index:5;}
.modal-header h3{font-size:1rem;font-weight:700;}
.modal-body{padding:24px;}
.modal-footer{padding:16px 24px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px;position:sticky;bottom:0;background:var(--card);}

/* ── SIDEBAR FILTROS ── */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px;}
.filter-bar input,.filter-bar select{width:auto;flex:1;min-width:140px;}

/* ── FILA ── */
.fila-item{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:12px 14px;margin-bottom:8px;display:flex;align-items:center;justify-content:space-between;gap:10px;}
.fila-item-info{flex:1;font-size:.85rem;}
.fila-item-info b{display:block;}

/* ── MENSALISTAS ── */
.mes-chip{display:inline-block;width:38px;height:28px;border-radius:6px;text-align:center;line-height:28px;font-size:.68rem;font-weight:700;cursor:pointer;border:1px solid var(--border);transition:all .15s;}
.mes-PAGO{background:#dcfce7;color:#166534;border-color:#86efac;}
.mes-PENDENTE{background:#fef9c3;color:#854d0e;border-color:#fcd34d;}
.mes-ATRASADO{background:#fee2e2;color:#991b1b;border-color:#fca5a5;}
.mes-ISENTO{background:#ede9fe;color:#5b21b6;border-color:#c4b5fd;}
.mes--{background:var(--bg);color:var(--muted);}
body.dark .mes-PAGO{background:#14532d;color:#86efac;}
body.dark .mes-PENDENTE{background:#422006;color:#fcd34d;}
body.dark .mes-ATRASADO{background:#450a0a;color:#fca5a5;}

/* ── LOGIN ── */
#login-screen{position:fixed;inset:0;background:var(--sidebar);display:flex;align-items:center;justify-content:center;z-index:500;}
.login-box{background:var(--card);border-radius:20px;padding:40px 36px;width:100%;max-width:380px;box-shadow:0 25px 50px rgba(0,0,0,.4);}
.login-logo{text-align:center;margin-bottom:28px;}
.login-logo h1{font-size:1.5rem;font-weight:800;margin-top:10px;}
.login-logo p{font-size:.85rem;color:var(--muted);}

/* ── TOAST ── */
#toast-container{position:fixed;bottom:90px;right:20px;z-index:999;display:flex;flex-direction:column;gap:8px;}
.toast{padding:12px 18px;border-radius:10px;color:#fff;font-size:.88rem;font-weight:600;box-shadow:var(--shadow-lg);animation:slideIn .25s ease;display:flex;align-items:center;gap:8px;max-width:320px;}
.toast-ok{background:#10b981;}
.toast-err{background:#ef4444;}
.toast-info{background:#2563eb;}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* ── BOTTOM NAV (MOBILE) ── */
#bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;background:var(--sidebar);border-top:1px solid rgba(255,255,255,.08);z-index:200;height:60px;align-items:stretch;}
.bnav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:#64748b;font-size:.6rem;font-weight:600;cursor:pointer;border:none;background:none;transition:color .15s;}
.bnav-item i{font-size:1.1rem;}
.bnav-item.active{color:var(--primary);}

/* ── CHANGELOG ── */
.change-item{padding:14px 0;border-bottom:1px solid var(--border);}
.change-item:last-child{border-bottom:none;}
.change-badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:.7rem;font-weight:700;margin-bottom:6px;}
.cb-NOVO{background:#dbeafe;color:#1e40af;}
.cb-MELHORIA{background:#dcfce7;color:#166534;}
.cb-CORRECAO{background:#fef9c3;color:#854d0e;}
.cb-SEGURANCA{background:#fee2e2;color:#991b1b;}

/* ── IA ── */
.ia-box{background:linear-gradient(135deg,#1e3a8a,#312e81);border-radius:12px;padding:16px;margin-bottom:16px;color:#fff;}
.ia-box h4{font-size:.9rem;margin-bottom:8px;display:flex;align-items:center;gap:8px;}
.ia-input-row{display:flex;gap:8px;}
.ia-input-row input{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#fff;flex:1;}
.ia-input-row input::placeholder{color:rgba(255,255,255,.5);}
.ia-input-row input:focus{border-color:rgba(255,255,255,.5);box-shadow:none;}

/* ── RESPONSIVO ── */
@media(max-width:1200px){.kpi-grid{grid-template-columns:repeat(2,1fr);}.grid-big,.grid-3{grid-template-columns:1fr;}}
@media(max-width:768px){
  aside{position:fixed;top:0;left:0;height:100%;transform:translateX(-110%);width:280px;}
  aside.open{transform:translateX(0);}
  .fab{display:flex;}
  #bottom-nav{display:flex;}
  main{padding-bottom:60px;}
  .page{padding:14px;}
  .kpi-grid{grid-template-columns:1fr 1fr;}
  .grid-2,.grid-big,.grid-3{grid-template-columns:1fr;}
  .modal{max-height:95vh;margin:auto;}
  .filter-bar{flex-direction:column;}
  .filter-bar input,.filter-bar select{width:100%;}
  header .btn-text{display:none;}
  #overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:199;}
  #overlay.on{display:block;}
}
@media print{
  aside,#bottom-nav,.fab,header,.btn,.filter-bar{display:none!important;}
  .page{padding:0;}
  body{background:#fff;color:#000;}
}