/* NunuaNow Campaigns — app-wide modernization + responsive (loaded last) */
:root{
  --primary:#10B981; --primary-dark:#059669;
  --ring:rgba(16,185,129,.28);
  --radius:13px;
  --border:#e6ebf1;
  --shadow:0 1px 2px rgba(15,23,42,.06), 0 10px 26px -14px rgba(15,23,42,.20);
}
html{-webkit-text-size-adjust:100%}
body{background:#f6f8fb;-webkit-font-smoothing:antialiased}
h1{font-size:1.4rem;letter-spacing:-.01em}
h2,h3{letter-spacing:-.01em}

/* Sidebar / nav */
.sidebar{background:linear-gradient(180deg,#0f172a,#0b1220);border-right:1px solid #1e293b}
.nav-link{border-radius:9px;margin:.1rem .5rem;padding:.6rem .85rem;border-left:0;transition:background .15s,color .15s}
.nav-link:hover{background:#ffffff14}
.nav-link.active{background:linear-gradient(90deg,rgba(16,185,129,.22),rgba(16,185,129,.05));color:#fff;box-shadow:inset 3px 0 0 var(--primary)}

/* Topbar */
.topbar{background:#fffffff2}
.topbar-user{font-size:.85rem}

/* Cards */
.card{border-radius:var(--radius);border-color:var(--border);box-shadow:var(--shadow);transition:box-shadow .18s}
.card:hover{box-shadow:0 2px 4px rgba(15,23,42,.06),0 16px 36px -18px rgba(15,23,42,.24)}
.card-header{padding:.9rem 1.1rem}
.card-body{padding:1.1rem;overflow-x:auto}
.stat-card{border-radius:var(--radius);border-color:var(--border);box-shadow:var(--shadow)}
.stat-value{font-size:1.6rem;letter-spacing:-.02em}

/* Buttons */
.button{border-radius:10px;border-color:var(--border);font-weight:600;transition:background .15s,box-shadow .15s,transform .05s}
.button:focus-visible{outline:none;box-shadow:0 0 0 4px var(--ring)}
.button:active{transform:translateY(1px)}
.button-primary{background:linear-gradient(135deg,#10B981,#059669);border-color:transparent;color:#fff;box-shadow:0 8px 18px -10px rgba(16,185,129,.7)}
.button-primary:hover{background:linear-gradient(135deg,#0fb87a,#048a5f)}
.button-danger{color:#b91c1c;border-color:#fecaca;background:#fff}
.button-small{border-radius:8px}

/* Inputs */
input,select,textarea{border-radius:10px;border-color:var(--border);transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px var(--ring)}

/* Tables */
.table{font-size:.85rem}
.table th{position:sticky;top:0;background:#fff;z-index:1}
.table td,.table th{padding:.6rem .7rem}
.table tr.clickable:hover{background:#f1f5f9}

/* Misc */
.alert{border-radius:11px}
.details dt{font-size:.8rem}
.modal{border-radius:16px}

/* ===== Mobile / responsive ===== */
@media (max-width:880px){
  .app-shell{flex-direction:column}
  .sidebar{width:100%;padding:.5rem .4rem;position:sticky;top:0;z-index:40}
  .sidebar .brand{padding:.5rem .75rem;min-height:46px;background-position:left center !important}
  .sidebar nav{flex-direction:row;overflow-x:auto;gap:.2rem;padding:.15rem .25rem .35rem}
  .sidebar nav::-webkit-scrollbar{height:6px}
  .nav-link{white-space:nowrap;margin:0;padding:.5rem .75rem;min-height:40px;display:flex;align-items:center}
  .nav-link.active{box-shadow:inset 0 -3px 0 var(--primary)}
  .topbar{padding:.6rem 1rem;flex-wrap:wrap;gap:.4rem}
  .content{padding:1rem}
  .page-header{flex-direction:column;align-items:flex-start;gap:.5rem}
  .stats-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr))}
  .details{grid-template-columns:1fr}
  .form.inline{flex-direction:column;align-items:stretch}
  .form.inline label{min-width:0}
  .modal-backdrop{padding:1rem;align-items:flex-start}
  pre,.key-display{font-size:.72rem}
  h1{font-size:1.2rem}
}
@media (max-width:480px){
  .content{padding:.75rem}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat-value{font-size:1.35rem}
  .table{min-width:560px}
}