.rm-advent-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.4s ease 0.2s;
}

.rm-advent-overlay[aria-hidden="false"] {
  display: flex;
  opacity: 1;
}

.rm-advent-modal {
  background: #fff;
  color: #111;
  width: min(92vw, 720px);
  max-height: 90vh;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: scale(0.95);
  opacity: 0;
  transition: transform 0.4s ease 0.2s, opacity 0.4s ease 0.2s;
}

.rm-advent-overlay[aria-hidden="false"] .rm-advent-modal {
  transform: scale(1);
  opacity: 1;
}

.rm-advent-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid #eee;
  background: linear-gradient(90deg, #df360f 0%, #ffce5c 100%);
  color: #fff;
}

.rm-advent-title {
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.rm-advent-title::after {
  content: "❄️";
  font-size: 1rem;
  opacity: 0.9;
}

.rm-advent-close {
  appearance: none;
  border: none;
  background: transparent;
  font-size: 1.25rem;
  line-height: 1;
  padding: 8px;
  cursor: pointer;
  color: #fff;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.rm-advent-close:hover {
  opacity: 0.7;
  transform: scale(1.1);
}

.rm-advent-body {
  padding: 16px;
  overflow: auto;
}

.rm-advent-footer {
  padding: 12px 16px;
  border-top: 1px solid #eee;
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.rm-btn, .rm-back-btn, .rm-close-btn {
  appearance: none;
  border: 1px solid #ddd;
  background: #fafafa;
  color: #0f1b4d;
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.4s ease 0.2s;
}

.rm-btn:hover, .rm-back-btn:hover, .rm-close-btn:hover {
  color: #384ea6;
  background: #fefefe;
  transform: translateY(-1px);
}

.rm-advent-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
}

@media (max-width: 560px) {
  .rm-advent-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.rm-door {
  position: relative;
  aspect-ratio: 1 / 1;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  background: linear-gradient(180deg, #ffffff, #f5f5f5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.15rem;
  cursor: pointer;
  user-select: none;
  transition: transform .4s ease, box-shadow .4s ease, color .4s ease;
  color: #df360f;
}

.rm-door:disabled {
  cursor: not-allowed;
  opacity: .5;
}

.rm-door:hover {
  color:#0f1b4d;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(0,0,0,.07);
}

.rm-door.today {
  color: #fff;
  background: linear-gradient(37deg,rgba(223, 54, 15, 1) 0%, rgba(255, 255, 255, 1) 100%);
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59,130,246,.15) inset;
}

.rm-door.today::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 14px;
  border: 2px solid rgba(59,130,246,.55);
  animation: rm-pulse 1.6s ease-out infinite;
  pointer-events: none;
}

@keyframes rm-pulse {
  0% { opacity: .9; transform: scale(1);}
  70% { opacity: 0; transform: scale(1.12);}
  100% { opacity: 0; transform: scale(1.12);}
}

.rm-advent-card {
  background: #f9fafb;
  border: 1px solid #eef0f2;
  border-radius: 12px;
  padding: 16px;
  transition: all 0.4s ease 0.2s;
}

.rm-advent-card h3 {
  margin: 0 0 6px;
  font-size: 1.1rem;
}

.rm-advent-card p {
  margin: 0;
  line-height: 1.5;
}

.rm-content-view {
  display: none;
  transition: opacity 0.4s ease 0.2s;
}

.rm-content-view[aria-hidden="false"] {
  display: block;
  opacity: 1;
}

.rm-hidden {
  display: none !important;
}