* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: #0d0d0d;
  color: #eee;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

header {
  padding: 1.8rem 1.5rem 1.2rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

header h1 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #a8dadc;
}

#clock {
  font-size: 0.85rem;
  color: #555;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
}

section h2 {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #4a4a4a;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  grid-auto-rows: 110px;
  gap: 0.7rem;
}

.card {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 1rem 1.1rem;
  height: 100%;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  transition: background 0.15s, border-color 0.15s, transform 0.12s;
  position: relative;
}

.card:hover {
  background: rgba(168,218,220,0.06);
  border-color: rgba(168,218,220,0.28);
  transform: translateY(-2px);
}

.card:active { transform: translateY(0); }

.icon {
  font-size: 1.7rem;
  line-height: 1;
  flex-shrink: 0;
  width: 2rem;
  text-align: center;
}

.card-text { flex: 1; min-width: 0; }

.card-text strong {
  display: block;
  font-size: 0.9rem;
  color: #ddd;
  margin-bottom: 0.2rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-text p {
  font-size: 0.75rem;
  color: #5a5a5a;
  line-height: 1.4;
}

.device-tag {
  position: absolute;
  top: 7px;
  left: 10px;
  font-size: 0.87rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}

.card-s20u .device-tag {
  color: rgba(255,255,255,0.6);
}

.badge {
  font-size: 0.62rem;
  padding: 2px 7px;
  border-radius: 20px;
  flex-shrink: 0;
  white-space: nowrap;
  background: rgba(255,255,255,0.07);
  color: #555;
}

.badge-ext {
  background: rgba(168,218,220,0.1);
  color: #a8dadc;
}

/* S20U 폰 연결 카드 — 박스 주황 계열로 구분 */
.card-s20u {
  background: rgba(244,162,97,0.13);
  border-color: rgba(244,162,97,0.35);
}

.card-s20u:hover {
  background: rgba(244,162,97,0.22);
  border-color: rgba(244,162,97,0.55);
}

@media (max-width: 600px) {
  header { padding: 1.2rem 1rem 0.9rem; }
  main { padding: 1.2rem 1rem; gap: 1.8rem; }
  .grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 110px; gap: 0.55rem; }
  .card { flex-direction: column; align-items: flex-start; gap: 0.4rem; padding: 0.8rem; }
  .icon { font-size: 1.4rem; }
  .card-text strong { white-space: normal; font-size: 0.82rem; }
  .badge { align-self: flex-end; margin-top: auto; }
}

@media (max-width: 360px) {
  .grid { grid-template-columns: 1fr; }
}