* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Noto Sans KR', -apple-system, sans-serif;
  background: linear-gradient(135deg, #0a1628 0%, #1a2540 50%, #0a1628 100%);
  color: #fff;
  min-height: 100vh;
}
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 30px;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  flex-wrap: wrap;
  gap: 12px;
}
.nav-left {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.nav .logo {
  font-size: 22px;
  font-weight: 700;
  background: linear-gradient(135deg, #ffd700, #ff8c00);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
}
.nav-menu {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.nav-menu a {
  padding: 6px 12px;
  color: #9db4d4;
  text-decoration: none;
  font-size: 13px;
  border-radius: 6px;
  transition: all 0.2s;
  white-space: nowrap;
}
.nav-menu a:hover {
  background: rgba(255,215,0,0.1);
  color: #ffd700;
}
.nav-menu a.active {
  background: rgba(255,215,0,0.15);
  color: #ffd700;
}
.user-area {
  display: flex;
  align-items: center;
  gap: 12px;
}
.user-info { font-size: 14px; color: #9db4d4; }
.user-info strong { color: #ffd700; }
.user-area button {
  padding: 8px 14px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
}
.user-area button:hover { background: rgba(255,255,255,0.15); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px;
}
.page-header {
  text-align: center;
  margin-bottom: 40px;
}
.page-header h1 {
  font-size: 32px;
  margin-bottom: 10px;
}
.page-header .gradient {
  background: linear-gradient(135deg, #ffd700, #ff8c00);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-header p { color: #9db4d4; font-size: 15px; }

.card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 28px;
  margin-bottom: 24px;
}
.card h2 {
  font-size: 22px;
  margin-bottom: 20px;
  color: #ffd700;
  border-bottom: 1px solid rgba(255,215,0,0.3);
  padding-bottom: 10px;
}
.card h3 {
  font-size: 17px;
  margin: 20px 0 12px;
  color: #9db4d4;
}

.loading {
  text-align: center;
  padding: 60px 20px;
  color: #9db4d4;
}
.spinner {
  display: inline-block;
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255,255,255,0.2);
  border-top-color: #ffd700;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 900px) {
  .nav { padding: 12px 16px; }
  .nav-left { width: 100%; flex-direction: column; align-items: flex-start; gap: 10px; }
  .nav-menu { width: 100%; overflow-x: auto; padding-bottom: 4px; }
  .nav-menu a { font-size: 12px; padding: 5px 10px; }
  .user-area { width: 100%; justify-content: flex-end; }
}

/* Navbar 가로 스크롤 (모바일/좁은 화면 대응) */
nav.nav {
  overflow-x: auto !important;
  flex-wrap: nowrap !important;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,215,0,0.3) transparent;
}
nav.nav::-webkit-scrollbar { height: 4px; }
nav.nav::-webkit-scrollbar-thumb { background: rgba(255,215,0,0.3); border-radius: 2px; }
nav.nav a { flex-shrink: 0; white-space: nowrap; }