:root{
  --bg: #0b1020;
  --card: #121831;
  --text: #e6eaf2;
  --muted: #a8b0c3;
  --accent: #5b8cff;
  --accent-2: #7bdcb5;
  --danger: #ff6b6b;
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  --radius: 14px;
}

*{ box-sizing: border-box; }
html,body{ height:100%; }
body{
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1000px 600px at 10% 10%, #121a36, transparent),
              radial-gradient(800px 500px at 90% 20%, #0f1a3d, transparent),
              var(--bg);
}

.container{
  max-width: 800px;
  margin: 0 auto;
  padding: 56px 20px 40px;
}

.hero{
  text-align: center;
  margin-bottom: 28px;
}
.hero h1{
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.1;
  margin: 0 0 12px;
}
.tagline{ color: var(--muted); margin: 0; }

.card{
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}
.dan-button {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.9rem 1.8rem;
  background-color: #0078ff;
  color: white;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  transition: background-color 0.25s ease;
}

.dan-button:hover {
  background-color: #005fcc;
}
.card h2{ margin-top: 0; }

label{ display:block; margin: 14px 0; }
label span{ display:block; margin: 0 0 8px; color: var(--muted); font-size: 14px; }
.req{ color: var(--accent-2); margin-left: 6px; }

input, textarea{
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  outline: none;
}
input:focus, textarea:focus{ border-color: var(--accent); box-shadow: 0 0 0 3px rgba(91,140,255,0.25); }

.grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 640px){
  .grid{ grid-template-columns: 1fr 1fr; }
}

.actions{
  display:flex;
  align-items:center;
  gap: 12px;
  margin-top: 8px;
}

button{
  background: linear-gradient(180deg, var(--accent), #436ff0);
  color: #fff;
  border: none;
  padding: 12px 16px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
}
button:disabled{ opacity: 0.7; cursor: not-allowed; }

.secondary{
  color: var(--muted);
  text-decoration: none;
}
.secondary:hover{ color: var(--text); }

#status{ min-height: 20px; font-size: 14px; margin-top: 6px; }
#status.success{ color: var(--accent-2); }
#status.error{ color: var(--danger); }

footer{ text-align:center; color: var(--muted); margin-top: 28px; }