* {
  box-sizing: border-box;
}

@media screen and (max-width: 600px) {
  .reactions {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.45rem;
  }

  .reaction {
    font-size: large !important;
    padding: 0.5rem 0.55rem !important;
    padding-left: 1rem !important;
    text-align: center;
    margin: 2%;
  }
}

body {
  margin: 0;
  padding: 2rem;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: #111111;
  color: #e8ecf2;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.chat-card {
  width: min(520px, calc(100vw - 2rem));
  background: rgba(255, 255, 255, 0.094);
  border: 1px solid rgba(255, 255, 255, 0);
  border-radius: 16px;
  backdrop-filter: blur(12px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  padding: 1rem;
}

.user-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.user-meta {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.username {
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
}

.tag {
  font-size: 0.8rem;
  color: rgba(236, 240, 255, 0.8);
  background: rgba(255, 255, 255, 0.1);
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
}

.message-row {
    padding-left: 1rem;
}

.message-text {
  font-size: 1rem;
  color: #f8fbff;
  padding-right: 1rem;
}

.reactions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 0.65rem;
}

.reaction {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  color: #fff;
  font-size: 0.9rem;
  padding: 0.2rem 0.55rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: 0.25s ease;
}

.reaction:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.reaction:active {
  transform: translateY(2px) !important;
}

.reaction.correct {
  background: #22c55e;
  border-color: #16a34a;
}

.reaction.incorrect {
  background: #ef4444;
  border-color: #b91c1c;
}

.reaction span {
  font-weight: 600;
}

.reaction:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: translateY(-1px);
  font-weight: 700;
}

.hidden {
  display: none !important;
}

.landing-card {
  width: min(520px, calc(100vw - 2rem));
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 16px;
  padding: 1.25rem;
  color: #f1f5f9;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.35);
  text-align: center;
}

.landing-card h1 {
  margin: 0 0 0.4rem;
  font-size: 1.45rem;
  color: #fff;
}

.landing-card p {
  margin: 0 0 1rem;
  color: rgba(241, 245, 249, 0.85);
}

.group-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.group-form label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.65rem;
  /*border: 1px solid rgba(255, 255, 255, 0.16);*/
  border-radius: 10px;
  cursor: pointer;
  user-select: none;
  transition: background 0.2s ease;
}

select {
    width: 100%;
    padding: 0.5rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
    color: #f1f5f9;
}

select::-webkit-scrollbar {
  display: none;
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.6rem;
  color: rgba(241, 245, 249, 0.9);
}

.source-link {
  color: #a3d8ff;
  font-size: 0.8rem;
  text-decoration: none;
}

.source-link:hover {
  text-decoration: underline;
}

.reply-hint {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  font-style: italic;
  color: rgba(221, 226, 236, 0.9);
  cursor: pointer;
}

.reply-hint.hidden {
  display: none;
}

.reply-author {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  padding: 0.25rem 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  font-size: 0.85rem;
}

.reply-author.hidden {
  display: none;
}

.reply-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
}

.group-form label:hover {
  background: rgba(255, 255, 255, 0.08);
}

.group-form input[type="checkbox"] {
  accent-color: #4a90e2;
}

.start-btn {
  border: none;
  background: linear-gradient(120deg, #5d89ff, #2b7dfd);
  color: white;
  font-size: 1rem;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  cursor: pointer;
}

.start-btn.secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.game-footer {
  margin-top: 0.8rem;
  text-align: right;
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
  align-items: center;
}

.timer-label,
.score-label {
  color: #c1d8ff;
  font-weight: 700;
  min-width: 110px;
}

.timer-label.low {
  color: #f87171;
  text-shadow: 0 0 8px rgba(248, 113, 113, 0.85);
  animation: pulseTimer 1s infinite ease-in-out;
}

@keyframes pulseTimer {
  0%, 100% { transform: s(1); }
  50% { transform: scale(1.02); }
}

.mention {
    background: rgba(50, 104, 212, 0.2);
    padding: 0.15rem;
    border-radius: 6px;
}