:root{
  --bg:#0f172a;
  --card:rgba(255,255,255,0.08);
  --text:#f1f5f9;
  --accent:#38bdf8;
}

body.light{
  --bg:#f1f5f9;
  --card:rgba(255,255,255,0.75);
  --text:#0f172a;
  -- संक्रम:rgba(0,0,0,0.05);
}

*{
  box-sizing:border-box;
}

body{
  margin:0;
  font-family:'Segoe UI',sans-serif;
  background:linear-gradient(135deg,#0f172a,#1e293b);
  color:var(--text);

  min-height:100vh;
  display:flex;
  flex-direction:column;
  align-items:center;

  transition:0.3s;
}

/* Wrapper agar tetap selebar HP di laptop */
.app-wrapper{
  width:100%;
  max-width:420px;
  padding:20px 15px;
  text-align:center;
  flex:1;
}

/* Topbar */
.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:20px;
}

h1{
  font-size:22px;
  margin:0;
  font-weight:600;
}

#themeToggle{
  padding:6px 10px;
  border:none;
  border-radius:10px;
  background:var(--accent);
  color:#fff;
  cursor:pointer;
}

/* Card style */
.card{
  background:var(--card);
  backdrop-filter:blur(12px);
  padding:18px;
  margin-bottom:14px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,0.08);
  box-shadow:0 8px 20px rgba(0,0,0,0.25);
}

.card h3{
  margin:0 0 10px 0;
  font-size:14px;
  color:var(--accent);
  font-weight:600;
}

.card p{
  margin:0;
  font-size:15px;
  line-height:1.6;
}

pre{
  white-space:pre-wrap;
  text-align:left;
  font-size:13px;
  margin-bottom:12px;
}

/* Buttons */
.btn-group{
  display:flex;
  justify-content:center;
  gap:10px;
}

button{
  padding:8px 14px;
  border:none;
  border-radius:12px;
  background:var(--accent);
  color:#fff;
  cursor:pointer;
  font-weight:500;
  transition:0.2s;
}

button:hover{
  opacity:0.85;
}

/* Map */
#map{
  height:300px;
  border-radius:14px;
  overflow:hidden;
}

/* Footer */
footer{
  width:100%;
  max-width:420px;
  text-align:center;
  padding:15px;
  margin-top:auto;
  font-size:14px;
}

footer a{
  color:var(--accent);
  text-decoration:none;
  font-weight:600;
}