:root{
  --bg: #f6f8fb;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e6eaf2;
  --primary: #0ea5b7; /* teal-ish like SaaS */
  --primary-600:#0b8ea0;
  --danger: #ef4444;
  --shadow: 0 10px 30px rgba(15, 23, 42, .08);
  --radius: 14px;
  --sidebar: #ffffff;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background: var(--bg);
  color: var(--text);
}

a{color:inherit}

.admin-shell{
  min-height:100%;
  display:grid;
  grid-template-columns: 260px 1fr;
}

.sidebar{
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  padding: 18px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand{
  display:flex;
  gap:12px;
  align-items:center;
  padding: 8px 10px 14px;
}
.brand-logo{
  display: flex;
  align-items: center;
  justify-content: center;
}
.brand-logo img{
  height: 40px;
  width: auto;
  object-fit: contain;
}
.brand-title{
  display:flex;
  flex-direction:column;
  gap:2px;
}
.brand-title strong{font-size:14px}
.brand-title span{font-size:12px;color:var(--muted)}

.nav-section{
  margin-top: 10px;
}
.nav-section .label{
  font-size:11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .12em;
  padding: 10px 10px 8px;
}
.nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  text-decoration:none;
  padding: 10px 10px;
  border-radius: 12px;
  color: var(--text);
}
.nav a:hover{background: #f1f5f9}
.nav a.active{
  background: rgba(14,165,183,.10);
  color: #0f172a;
  border: 1px solid rgba(14,165,183,.18);
}
.nav small{color:var(--muted)}

.content{
  padding: 22px 24px;
}

.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.topbar h1{
  margin:0;
  font-size: 22px;
  letter-spacing: .2px;
}
.actions{display:flex; gap:10px; flex-wrap:wrap}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  text-decoration:none;
  cursor:pointer;
  font-weight: 600;
}
.btn:hover{filter: brightness(.98)}
.btn.primary{
  border-color: rgba(14,165,183,.28);
  background: linear-gradient(135deg, var(--primary), #38bdf8);
  color:white;
}
.btn.primary:hover{filter: brightness(.98)}
.btn.danger{
  border-color: rgba(239,68,68,.25);
  background: rgba(239,68,68,.06);
  color: #b91c1c;
}

.card{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

.grid{display:grid; gap: 14px}
.row2{display:grid; gap:14px; grid-template-columns:1fr}
@media (min-width: 920px){ .row2{grid-template-columns:1fr 1fr} }

label{display:block; font-size:12px; color: var(--muted); margin: 10px 0 6px}
input,textarea,select{
  width:100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  outline:none;
}
textarea{min-height: 92px; resize: vertical}
input:focus,textarea:focus,select:focus{
  border-color: rgba(14,165,183,.40);
  box-shadow: 0 0 0 4px rgba(14,165,183,.10);
}

.hint{
  font-size: 12px;
  color: var(--muted);
  line-height: 1.45;
  margin-top: 8px;
}
code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  background: #f1f5f9;
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 10px;
}

.alert{
  border-radius: 12px;
  padding: 12px;
  border: 1px solid var(--border);
  background: #f8fafc;
  color: var(--text);
}
.alert.ok{border-color: rgba(34,197,94,.25); background: rgba(34,197,94,.06)}
.alert.err{border-color: rgba(239,68,68,.25); background: rgba(239,68,68,.06); color: #991b1b}

.table{
  width:100%;
  border-collapse: collapse;
}
.table th,.table td{
  text-align:left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.table th{font-size:12px;color:var(--muted);font-weight:700}
.table tr:last-child td{border-bottom:0}
.pill{
  display:inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid var(--border);
}
.pill.on{background: rgba(34,197,94,.08); border-color: rgba(34,197,94,.25); color: #166534}
.pill.off{background: rgba(239,68,68,.06); border-color: rgba(239,68,68,.22); color: #991b1b}

.steps{
  display:flex;
  align-items:center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fbfdff;
  overflow:auto;
}
.step{
  display:flex;
  align-items:center;
  gap: 8px;
  white-space:nowrap;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}
.dot{
  width: 26px;height:26px;
  border-radius: 999px;
  border: 2px solid var(--border);
  display:grid;
  place-items:center;
  font-size: 12px;
  background: #fff;
}
.step.active{color: var(--text)}
.step.active .dot{border-color: rgba(14,165,183,.35); background: rgba(14,165,183,.08)}
.step.done{color: var(--text)}
.step.done .dot{border-color: rgba(34,197,94,.35); background: rgba(34,197,94,.08)}
.sep{
  width: 26px;
  height: 2px;
  background: var(--border);
  border-radius: 999px;
}

@media (max-width: 860px){
  .admin-shell{grid-template-columns: 1fr}
  .sidebar{position:relative;height:auto}
}