:root{
  --bg:#f4f6f9; --panel:#ffffff; --ink:#1c2430; --muted:#6b7683;
  --line:#e4e8ee; --brand:#1f5f8b; --brand-ink:#fff;
  --primary:#1f5f8b; --danger:#c23b3b; --ok:#2f8f5b;
  --radius:10px; --shadow:0 1px 3px rgba(20,30,45,.08);
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:15px;line-height:1.45}
a{color:inherit;text-decoration:none}

.layout{display:flex;min-height:100vh}

/* Sidebar */
.sidebar{width:250px;background:#122536;color:#cdd7e2;display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh}
.brand{display:flex;gap:10px;align-items:center;padding:18px 18px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand-logo{width:38px;height:38px;border-radius:9px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:700}
.brand strong{display:block;font-size:15px;color:#fff}
.brand span{font-size:12px;color:#8ea3b8}
.sidebar nav{padding:10px;overflow:auto;flex:1}
.nav-group{font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:#6f8298;
  padding:14px 12px 6px}
.nav-item{display:block;padding:9px 12px;border-radius:8px;color:#cdd7e2;margin:2px 0;font-size:14px}
.nav-item:hover{background:rgba(255,255,255,.06)}
.nav-item.active{background:var(--brand);color:#fff}
.sidebar-foot{padding:12px 18px;font-size:11px;color:#5f7288;border-top:1px solid rgba(255,255,255,.08)}

/* Content */
.content{flex:1;padding:26px 32px;max-width:1100px}
.page-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:12px}
h1{font-size:22px;margin:0}
.subtitle{color:var(--muted);margin:0 0 20px}

/* Cards */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow);margin-bottom:18px}
.note{background:#eef5fb;border-color:#cfe1f0}
.empty{text-align:center;color:var(--muted)}
.empty .btn{margin-top:10px}

.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;margin-bottom:22px}
.stat-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow);transition:transform .08s,box-shadow .08s}
.stat-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(20,30,45,.12)}
.stat-icon{font-size:24px}
.stat-num{font-size:30px;font-weight:700;line-height:1.1;margin-top:6px}
.stat-label{color:var(--muted);font-size:13px}

/* Table */
.table-wrap{padding:0;overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
th{font-size:12px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted);background:#fafbfc}
tbody tr:hover{background:#fafcfe}
.actions-col{text-align:right}

/* Forms */
.form{max-width:620px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:5px}
.field .req{color:var(--danger)}
input,select,textarea{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;
  font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(31,95,139,.12)}
.hint{display:block;color:var(--muted);font-size:12px;margin-top:4px}
.form-actions{display:flex;gap:10px;margin-top:8px}

/* Buttons */
.btn{display:inline-block;padding:9px 15px;border-radius:8px;border:1px solid var(--line);
  background:#fff;cursor:pointer;font:inherit;font-size:14px}
.btn:hover{background:#f4f6f9}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{filter:brightness(1.07)}
.btn-ghost{background:transparent}
.btn-danger{color:var(--danger);border-color:#eccccc}
.btn-danger:hover{background:#fbeeee}
.btn-sm{padding:5px 10px;font-size:13px}

/* Flash */
.flash{background:#e6f6ec;border:1px solid #bfe4cd;color:#1f6b41;padding:11px 15px;
  border-radius:8px;margin-bottom:16px}

@media(max-width:760px){
  .layout{flex-direction:column}
  .sidebar{width:100%;height:auto;position:static;flex-direction:row;flex-wrap:wrap}
  .content{padding:18px}
}

/* ---- Login ---- */
.login-body{display:grid;place-items:center;min-height:100vh;background:#122536}
.login-card{background:#fff;padding:34px 30px;border-radius:14px;width:340px;max-width:92vw;
  box-shadow:0 10px 40px rgba(0,0,0,.3);text-align:center}
.login-card h1{font-size:20px;margin:14px 0 2px}
.login-card .subtitle{margin-bottom:18px}
.login-card .field{text-align:left}
.brand-logo.big{width:54px;height:54px;border-radius:12px;font-size:20px;margin:0 auto}
.btn-block{width:100%;margin-top:6px}
.flash-erro{background:#fbeaea;border-color:#e6c3c3;color:#a12a2a}

/* ---- Sidebar user ---- */
.sidebar-foot .user{color:#cdd7e2;font-size:12px;margin-bottom:2px}
.sidebar-foot .logout{color:#9ab3cd}

/* ---- Stat highlight ---- */
.stat-card.highlight{background:linear-gradient(135deg,#1f5f8b,#2a7fb8);color:#fff;border:none}
.stat-card.highlight .stat-label{color:#e6f1f9}

/* ---- Simulador ---- */
.sim-form{padding:16px 18px}
.sim-inputs{display:flex;gap:14px;flex-wrap:wrap;align-items:flex-end}
.sim-inputs .field{margin:0;flex:1;min-width:150px}
.field-btn{flex:0 0 auto}
.result-title{font-size:17px;margin:0 0 12px}
.result-table{width:100%;border-collapse:collapse}
.result-table td{padding:9px 6px;border-bottom:1px solid var(--line)}
.result-table .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.result-table .total-row td{font-weight:700;font-size:16px;border-top:2px solid var(--ink);border-bottom:none;padding-top:12px}
.result-table .pct-row td{color:var(--muted);font-size:13px;border:none;padding-top:2px}
.save-orc{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line)}
.save-orc input{flex:1;min-width:160px}
.save-orc .btn{flex:0 0 auto}