/* ===============================
   Globale Styles für 4 Gewinnt Online
   =============================== */

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

/* Hintergrund */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(to bottom right, #4f46e5, #3b82f6); /* Indigo → Blau */
  color: white;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Buttons */
button {
  cursor: pointer;
  border: none;
  outline: none;
  transition: all 0.2s ease-in-out;
}

button:hover {
  transform: scale(1.05);
}

/* Input Felder */
input {
  padding: 0.5rem;
  border-radius: 0.5rem;
  border: 1px solid #ccc;
  width: 100%;
}

/* Spielbrett Grid */
.grid {
  display: grid;
  gap: 0.5rem;
}

@media (min-width: 640px) {
  .grid {
    gap: 0.75rem;
  }
}

/* Stein Animation */
.stone {
  border-radius: 50%;
  width: 3rem;
  height: 3rem;
  transition: transform 0.2s ease-in-out;
}

.stone:hover {
  transform: scale(1.1);
}

/* Gewinner Highlight */
.winner {
  color: #34d399; /* grün */
  font-weight: bold;
  font-size: 1.5rem;
}

/* Chat */
.chat-box {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 0.5rem;
  border-radius: 0.5rem;
  max-height: 200px;
  overflow-y: auto;
  font-size: 0.9rem;
}