body {
  font-family: Inter, Arial, sans-serif;
  background: linear-gradient(180deg,#070b19 0%, #0b1022 100%);
  color: #e8f6ff;
  margin: 0;
  padding: 24px;
}
input[type="text"], button, input[type="checkbox"] {
  font-size: 16px;
  margin: 10px 0;
  padding: 10px;
  width: 100%;
  max-width: 350px;
  border: none;
  border-radius: 5px;
  outline: none;
}
input[type="text"] {
  background-color: #1a1f33;
  color: #ffffff;
  border: 1px solid #394165;
}
button {
  background: linear-gradient(45deg, #33ccff, #ff99cc);
  color: #ffffff;
  cursor: pointer;
  transition: all 0.3s ease;
}
button:nth-of-type(2) {
  background: linear-gradient(45deg, #ff99cc, #ffcc33);
}
button:nth-of-type(3) {
  background: linear-gradient(45deg, #99ffcc, #ff33cc);
}
button:hover {
  transform: scale(1.05);
  opacity: 0.9;
}
img {
  max-width: 200px;
  margin-bottom: 5px;
}
h3 {
  font-size: 22px;
  color: #a1eafb;
}
label {
  font-size: 16px;
  color: #b0d4ff;
  display: block;
  margin: 5px 0;
}
p {
  font-size: 14px;
  color: #999999;
}
.container {
  max-width: 1000px;
  margin: 0 auto;
}
.header {
  display:flex;
  gap:12px;
  align-items:center;
  justify-content:center;
  flex-wrap:wrap;
}
.header img{max-width:140px}
.title {font-size:20px;color:#a1eafb;margin:0}
.description{color:#b7d8ff;margin:6px 0 12px;text-align:center}

/* Controls */
.controls{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:12px}
.input-text{width:100%;max-width:520px;padding:10px;border-radius:8px;border:1px solid #394165;background:#0f1628;color:#fff}
.primary-btn{background:linear-gradient(45deg,#33ccff,#ff99cc);border:none;padding:10px 14px;border-radius:8px;color:#072;cursor:pointer}
.secondary-btn{background:transparent;border:1px solid #394165;padding:10px 14px;border-radius:8px;color:#b0d4ff;cursor:pointer}

/* Groups grid */
.groups{display:grid;grid-template-columns:1fr;gap:12px;margin-top:16px}
@media(min-width:780px){.groups{grid-template-columns:repeat(2,1fr)}}

.group-card{background:linear-gradient(180deg,rgba(255,255,255,0.02),transparent);border:1px solid rgba(255,255,255,0.04);padding:12px;border-radius:10px}
.group-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
.group-title{font-weight:700;color:#d9f7ff}
.group-actions{display:flex;gap:6px}
.group-actions button{background:transparent;border:1px solid rgba(255,255,255,0.04);padding:6px 8px;border-radius:6px;color:#b0d4ff;cursor:pointer}

/* URL list */
.url-list{display:flex;flex-direction:column;gap:8px}
.url-item{display:flex;gap:8px;align-items:flex-start;background:rgba(2,6,18,0.3);padding:8px;border-radius:8px}
.url-meta{display:flex;flex-direction:column;flex:1}
.url-label{font-size:14px;color:#e9fbff}
.url-item input[type="checkbox"]{margin-top:4px}

/* small helpers */
.group-count{font-size:12px;color:#9fcff7}
.note{font-size:12px;color:#9fb0c9;text-align:center;margin-top:8px}