:root{
  --navy:#263c4c;
  --green:#407c38;
  --text:#0b1220;
  --muted:#5b6472;
  --bg:#f6f7fb;
  --card:#ffffff;
  --border:rgba(15, 23, 42, 0.10);
  --shadow:0 10px 30px rgba(15, 23, 42, 0.08);
  --radius:16px;
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.a-topbar{
  position:sticky; top:0; z-index:20;
  display:flex; justify-content:space-between; align-items:center;
  padding:14px 18px;
  background: rgba(255,255,255,0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.a-left{display:flex; align-items:center; gap:12px}
.a-logo{height:44px; width:auto}
.a-title{display:flex; flex-direction:column; line-height:1.1}
.a-name{font-weight:800; color: var(--navy)}
.a-sub{font-size:12px; color: var(--muted)}

.a-right{display:flex; align-items:center; gap:12px; flex-wrap:wrap}
.a-link{color: var(--navy); text-decoration:none; font-weight:700; font-size:14px}
.a-link:hover{text-decoration:underline}
.a-btn, .a-btn-primary{
  display:inline-flex; align-items:center; justify-content:center;
  padding:10px 14px;
  border-radius:12px;
  text-decoration:none;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--navy);
  font-weight:800;
  cursor:pointer;
}
.a-btn-primary{
  background: var(--navy);
  color:#fff;
  border-color: rgba(0,0,0,0.06);
  box-shadow: 0 8px 18px rgba(11, 18, 32, 0.16);
}
.a-main{max-width:1100px; margin:0 auto; padding:22px 18px 60px}

.a-footer{
  text-align:center;
  padding:16px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  background:#fff;
}

.a-card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 8px 22px rgba(15,23,42,0.06);
}

.a-head{display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom: 12px}
.a-head h1{margin:0; font-size:22px}
.a-muted{color: var(--muted)}

.a-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.a-grid-2{
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 14px;
  margin-bottom: 14px;
}

.a-kpi-label{color: var(--muted); font-weight:700}
.a-kpi-value{font-size:34px; font-weight:900; margin-top:6px}

.a-form{display:grid; gap:12px}
.a-form label{display:grid; gap:6px}
.a-form label span{font-size:12px; color: var(--muted); font-weight:700}
.a-form input, .a-form textarea, .a-form select{
  width:100%;
  padding:10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(15,23,42,0.14);
  background:#fff;
  outline:none;
}
.a-form input:focus, .a-form textarea:focus, .a-form select:focus{
  box-shadow: 0 0 0 4px rgba(64, 124, 56, 0.14);
  border-color: rgba(15,23,42,0.22);
}

.a-2col{display:grid; grid-template-columns: 1fr 1fr; gap: 12px}

.a-table{width:100%; border-collapse:collapse; font-size:14px}
.a-table th, .a-table td{padding:10px 10px; border-bottom: 1px solid rgba(15,23,42,0.08); text-align:left; vertical-align:top}
.a-table th{color: var(--muted); font-weight:800; font-size:12px; text-transform:uppercase; letter-spacing:0.4px}

.a-actions{display:flex; align-items:center; justify-content:flex-end; gap:10px}
.a-actions form{margin:0}
.a-actions .a-link{background:none; border:none; padding:0; cursor:pointer; font-weight:800}
.a-actions .danger{color:#b42318}

.a-search{display:flex; gap:10px; margin: 0 0 12px}
.a-search input{flex:1; padding:10px 12px; border-radius:12px; border: 1px solid rgba(15,23,42,0.14)}

.a-flashes{display:grid; gap:10px; margin-bottom:12px}
.a-flash{padding:10px 12px; border-radius:12px; border: 1px solid var(--border); background:#fff}
.a-ok{border-left: 4px solid var(--green)}
.a-error{border-left: 4px solid #b42318}

.a-filters{display:flex; gap:10px; margin: 0 0 12px; flex-wrap:wrap}
.a-chip{padding:8px 12px; border-radius:999px; border:1px solid var(--border); background:#fff; text-decoration:none; color: var(--navy); font-weight:800; font-size:13px}
.a-chip.active{border-left: 4px solid var(--green)}

.a-status{display:inline-flex; padding:6px 10px; border-radius:999px; font-weight:800; font-size:12px; border:1px solid var(--border)}
.a-status.draft{border-left: 4px solid #f59e0b}
.a-status.sent{border-left: 4px solid #2563eb}
.a-status.paid{border-left: 4px solid var(--green)}

.a-sumrow{display:flex; justify-content:space-between; padding:8px 0; border-bottom: 1px solid rgba(15,23,42,0.08)}
.a-sumrow.total{border-bottom:none; font-size:18px}

.a-lineadd{margin-top:12px}
.a-lineform{display:grid; grid-template-columns: 2.2fr 0.6fr 0.8fr 0.6fr auto; gap: 10px; align-items:end}
.a-lineform label{margin:0}

.a-login{max-width:420px; margin: 40px auto}
.a-login h1{margin:0 0 8px}
.a-hint{margin-top:12px; color: var(--muted); font-size:12px}
code{background:rgba(0,0,0,0.05); padding:2px 6px; border-radius:8px}

@media(max-width: 980px){
  .a-grid{grid-template-columns:1fr}
  .a-grid-2{grid-template-columns:1fr}
  .a-2col{grid-template-columns:1fr}
  .a-lineform{grid-template-columns:1fr}
  .a-actions{justify-content:flex-start}
}