* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f4f5f7;
  color: #1f2933;
}

header {
  text-align: center;
  padding: 1.5rem 1rem 0.5rem;
}

header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.8rem;
}

.tagline {
  margin: 0;
  color: #52606d;
}

.user-info {
  margin: 0.5rem 0 0;
  color: #52606d;
  font-size: 0.9rem;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem;
}

#calendar {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: 1.25rem;
}

.month {
  min-width: 0;
  background: #fff;
  border-radius: 12px;
  padding: 1rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.month h3 {
  margin: 0 0 0.75rem;
  text-align: center;
  font-size: 1.05rem;
  text-transform: capitalize;
}

.grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  grid-template-rows: 1.5rem;
  grid-auto-rows: 2.75rem;
  gap: 4px;
}

.weekday {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: #7b8794;
  padding-bottom: 4px;
}

.day {
  position: relative;
  min-width: 0;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 8px;
  background: #f8f9fb;
  font: inherit;
  font-size: 0.85rem;
  color: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
}

.day:hover:not(:disabled) {
  border-color: #2563eb;
}

.day.past {
  color: #cbd2d9;
  background: transparent;
  cursor: default;
}

.day.today {
  border-color: #7b8794;
  font-weight: 700;
}

.day.has-votes {
  background: #dbeafe;
}

.day.mine {
  background: #2563eb;
  color: #fff;
}

.day.mine .badge {
  background: #fff;
  color: #2563eb;
}

.badge {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 16px;
  height: 16px;
  border-radius: 8px;
  background: #2563eb;
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

.more-wrap {
  text-align: center;
  margin: 1.5rem 0;
}

#more-months {
  background: #fff;
  border: 1px solid #cbd2d9;
  border-radius: 8px;
  padding: 0.6rem 1.2rem;
  font: inherit;
  cursor: pointer;
  touch-action: manipulation;
}

#more-months:hover {
  border-color: #2563eb;
  color: #2563eb;
}

#best {
  background: #fff;
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

#best h2 {
  margin: 0 0 0.75rem;
  font-size: 1.2rem;
}

#best-empty {
  color: #7b8794;
  margin: 0;
}

#best-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

#best-list li {
  display: grid;
  grid-template-columns: minmax(200px, auto) auto 1fr;
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.5rem 0.6rem;
  border-radius: 8px;
}

#best-list li:nth-child(even) {
  background: #f8f9fb;
}

#best-list li.top {
  background: #dbeafe;
}

#best-list li.top .best-count {
  color: #1d4ed8;
}

.best-date {
  font-weight: 600;
}

.best-count {
  font-size: 0.85rem;
  color: #52606d;
  white-space: nowrap;
}

.best-names {
  color: #52606d;
  font-size: 0.9rem;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-box {
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  max-width: 360px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.modal-box h2 {
  margin: 0;
}

.modal-box p {
  margin: 0;
  color: #52606d;
  font-size: 0.9rem;
}

.modal-box input {
  font: inherit;
  padding: 0.6rem;
  border: 1px solid #cbd2d9;
  border-radius: 8px;
}

.modal-box button[type="submit"] {
  font: inherit;
  padding: 0.6rem;
  border: none;
  border-radius: 8px;
  background: #2563eb;
  color: #fff;
  cursor: pointer;
}

.day.flash {
  animation: day-flash 5s ease forwards;
}

@keyframes day-flash {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
  }
  8% {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.55);
  }
  85% {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.55);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
  }
}

.vote-label {
  position: absolute;
  bottom: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  background: #1f2933;
  color: #fff;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.7rem;
  white-space: nowrap;
  pointer-events: none;
  z-index: 5;
  animation: vote-fade 5s ease forwards;
}

@keyframes vote-fade {
  0% {
    opacity: 0;
  }
  8% {
    opacity: 1;
  }
  85% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

.status {
  position: fixed;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  max-width: calc(100% - 2rem);
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fcd34d;
  border-radius: 8px;
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  z-index: 10;
}

.hidden {
  display: none !important;
}

@media (max-width: 640px) {
  #best-list li {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }
}