/* Vibrant, curvy UI */
:root{
  --bg1:#ff6ec4;
  --bg2:#7873f5;
  --glass: rgba(255,255,255,0.14);
  --glass-strong: rgba(255,255,255,0.22);
  --text:#ffffff;
  --accent:#ff9f1c;
  --accent-2:#00d1ff;
  --shadow: 0 10px 35px rgba(0,0,0,0.25);
  --radius-xl: 28px;
  --radius-2xl: 36px;
}

*{ box-sizing: border-box; }

html, body {
  height: 100%;
}

body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
  background: radial-gradient(1200px 800px at 10% 10%, var(--bg1), transparent 60%),
              radial-gradient(1200px 800px at 90% 20%, var(--bg2), transparent 60%),
              linear-gradient(135deg, var(--bg1), var(--bg2));
  margin:0;
  color: var(--text);
  display:flex;
  flex-direction:column;
}

.hero{
  text-align:center;
  padding: 36px 16px 8px;
}

.hero h1{
  font-size: clamp(1.8rem, 4vw, 3rem);
  margin: 0 0 8px;
  text-shadow: 0 6px 18px rgba(0,0,0,0.35);
}

.tagline{
  margin: 0;
  opacity: .9;
}

.container{
  width:min(1050px, 92%);
  margin: 16px auto 32px;
  display:grid;
  grid-template-columns: 1fr;
  gap:20px;
}

.card{
  background: var(--glass);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow);
  border:1px solid rgba(255,255,255,0.18);
  padding:18px;
  backdrop-filter: blur(10px);
}

.input-card{
  padding: 22px;
}

.pill-row{
  display:grid;
  grid-template-columns: 1fr;
  gap:14px;
}

@media (min-width: 720px){
  .pill-row{ grid-template-columns: 1fr 1fr; }
}

.pill{
  display:flex;
  align-items:center;
  background: var(--glass-strong);
  border-radius: 999px;
  padding: 10px 14px 10px 12px;
  gap:10px;
  border:1px solid rgba(255,255,255,0.25);
}

.pill-label{
  padding: 6px 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 999px;
  font-weight: 700;
  font-size:.9rem;
  white-space:nowrap;
  box-shadow: 0 6px 14px rgba(0,0,0,0.25);
}

input{
  appearance:none;
  border:none;
  outline:none;
  width:100%;
  padding: 12px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.9);
  color:#222;
  font-size: 1rem;
}

.actions{
  margin-top: 12px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

button{
  appearance:none;
  border:none;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 800;
  cursor:pointer;
  transition: transform .12s ease, box-shadow .12s ease, opacity .2s ease;
}

.primary{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color:white;
  box-shadow: 0 10px 20px rgba(0,0,0,0.25);
}
.primary:hover{ transform: translateY(-1px) scale(1.02); }
.ghost{
  background: rgba(255,255,255,0.1);
  border:1px solid rgba(255,255,255,0.25);
  color:white;
}
.ghost:hover{ transform: translateY(-1px); }

.result{
  margin-top: 10px;
  font-weight: 800;
  font-size: 1.05rem;
  text-align:center;
}

.map-card{
  padding: 12px;
}

#map{
  height: 460px;
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 2px solid rgba(255,255,255,0.25);
}

.legend{
  display:flex;
  gap: 18px;
  margin-top: 10px;
  font-weight: 700;
  opacity: .95;
}

.legend .dot{
  display:inline-block;
  width: 14px;
  height: 14px;
  border-radius:50%;
  margin-right: 6px;
}

.dot.start{ background: #1dd1a1; }
.dot.end{ background: #ff7675; }

.footer{
  text-align:center;
  padding: 18px;
  opacity:.85;
  font-size:.9rem;
}