:root{ 
  --bg:#f7f6f2;
  --card:#ffffff;
  --text:#1f2937;
  --muted:#6b7280;
  --border: rgba(17, 24, 39, .08);
  --shadow: 0 10px 25px rgba(17,24,39,.06);
  --radius: 18px;
}

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

.container{
  max-width: 980px;
  margin: 0 auto;
  padding: 16px;
  padding-bottom: 92px; /* espacio para bottom nav */
}

.topbar{
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247,246,242,.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.topbar-inner{
  max-width: 980px;
  margin:0 auto;
  padding: 12px 16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:650;
  letter-spacing:.2px;
}
.brand img{ width:28px; height:28px; }

.card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
}

.grid{
  display:grid;
  gap:12px;
}

.grid-2{
  grid-template-columns: 1fr;
}
@media (min-width: 860px){
  .container{ padding-bottom: 24px; }
  .grid-2{ grid-template-columns: 1.3fr .7fr; }
  .bottom-nav{ display:none; }
}

.h1{ font-size: 18px; margin:0; }
.muted{ color: var(--muted); font-size: 13px; }

.btn{
  appearance:none;
  border:1px solid var(--border);
  background:#111827;
  color:#fff;
  padding: 10px 12px;
  border-radius: 14px;
  font-weight: 600;
  cursor:pointer;
}
.btn.secondary{
  background:#fff;
  color:var(--text);
}

.input{
  width:100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background:#fff;
  font-size: 15px;
}

.list{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background:#fff;
}
.item a{ color:inherit; text-decoration:none; font-weight:600; }
.badge{
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}

/* Bottom nav (mobile) */
.bottom-nav{
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
  padding: 10px 12px calc(env(safe-area-inset-bottom) + 10px);
  z-index: 50;
}

.bottom-nav-inner{
  max-width: 980px;
  margin:0 auto;
  display:flex;
  justify-content:space-around;
  gap:10px;
}
.navlink{
  flex:1;
  text-align:center;
  text-decoration:none;
  color: var(--muted);
  font-size: 12px;
  padding: 8px 0;
  border-radius: 14px;
}
.navlink.active{
  color: var(--text);
  background: rgba(17,24,39,.06);
}

.fab{
  position: fixed;
  right: 16px;
  bottom: 92px;
  z-index: 60;
  border-radius: 999px;
  padding: 12px 14px;
  box-shadow: var(--shadow);
}

@media (min-width: 860px){
  .fab{ position: static; box-shadow:none; }
}