:root{
  --bg:#f6f7fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e2e8f0;
  --primary:#2563eb;
  --primary-2:#1d4ed8;
  --danger:#dc2626;
  --shadow: 0 10px 30px rgba(15,23,42,.08);
  --radius: 16px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans Arabic", "Noto Sans", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container{
  width:min(100%, 980px);
  margin:0 auto;
  padding: 16px;
}

.card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

.h1{margin:0 0 8px; font-size: 22px}
.h2{margin:0 0 8px; font-size: 18px}
.muted{color:var(--muted)}
code{
  background:#f1f5f9;
  border:1px solid var(--border);
  padding:2px 6px;
  border-radius: 10px;
  font-size: .92em;
}

.topbar{
  position: sticky;
  top:0;
  z-index:10;
  background: rgba(246,247,251,.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
}

.brand{display:flex; align-items:center; gap:10px}
.logo-dot{
  width:14px; height:14px; border-radius:999px;
  background: var(--primary);
  box-shadow: 0 0 0 6px rgba(37,99,235,.12);
}
.brand-title{font-weight:700}
.brand-sub{font-size: 12px}

.top-actions{display:flex; align-items:center; gap:10px; flex-wrap:wrap}

.chip{
  display:inline-flex; align-items:center;
  padding:6px 10px;
  border-radius: 999px;
  border:1px solid var(--border);
  background:#fff;
  font-size: 13px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background:#fff;
  color: var(--text);
  text-decoration:none;
  cursor:pointer;
  font-weight: 600;
}

.btn-primary{
  background: var(--primary);
  border-color: var(--primary);
  color:#fff;
}
.btn-primary:hover{background: var(--primary-2); border-color: var(--primary-2);}

.btn-ghost{
  background: transparent;
}
.btn-ghost:hover{
  background: rgba(15,23,42,.04);
}

.form{display:grid; gap:10px; margin-top:12px}
.label{font-weight:700; font-size: 13px}
.input{
  width:100%;
  padding: 12px 12px;
  border:1px solid var(--border);
  border-radius: 12px;
  background:#fff;
  outline:none;
}
.input:focus{
  border-color: rgba(37,99,235,.6);
  box-shadow: 0 0 0 4px rgba(37,99,235,.12);
}

.alert{
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
}
.alert-danger{
  border-color: rgba(220,38,38,.35);
  background: rgba(220,38,38,.06);
  color: var(--danger);
}

.auth-card{max-width: 520px; margin: 40px auto}

.tabs-nav{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin: 14px 0;
}

.tab-link{
  padding: 8px 12px;
  border-radius: 999px;
  border:1px solid var(--border);
  text-decoration:none;
  color: var(--text);
  background:#fff;
  font-weight:700;
  font-size: 13px;
}
.tab-link:hover{background:#f8fafc}
.tab-link.is-disabled{
  opacity:.45;
  pointer-events:none;
}

.tab-panel{
  border-top: 1px dashed var(--border);
  padding-top: 14px;
}

.empty{
  padding: 18px;
  border: 1px dashed var(--border);
  border-radius: 14px;
  background:#fbfdff;
}
.empty-title{font-weight:800; margin-bottom:6px}

.footer{
  padding: 22px 0 32px;
}

/* Mobile tweaks */
@media (max-width: 520px){
  .card{padding:14px}
  .topbar-inner{align-items:flex-start}
  .btn{padding:10px}
}