/* === GENERAL === */
body {
  margin: 0;
  font-family: 'Arial Black', Arial, sans-serif;
  background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%); /* Fresh supermarket green background */
  color: #2c3e50;
  text-align: center;
}

/* === HEADER === */
header {
  background: linear-gradient(135deg, #2E7D32 0%, #4CAF50 100%);
  padding: 25px 10px;
  border-bottom: 6px solid #1B5E20;
  box-shadow: 0 4px 15px rgba(46, 125, 50, 0.4);
}

header h1 {
  font-size: 2.7rem;
  color: #FFFFFF;
  text-shadow: 3px 3px 0px #1B5E20, 0 0 20px rgba(255, 255, 255, 0.3);
  margin: 0;
}

header h2 {
  margin-top: 5px;
  font-size: 1.3rem;
  color: #FFC107;
  text-shadow: 2px 2px 0px #1B5E20;
}

/* === INTRO SECTION === */
.intro {
  padding: 20px;
  font-size: 1.1rem;
  max-width: 800px;
  margin: auto;
  color: #2c3e50;
}

.highlight {
  color: #2E7D32;
  font-weight: bold;
  text-shadow: 2px 2px 0px rgba(255, 193, 7, 0.3);
}

/* === BUTTONS === */
.button-container {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-width: 350px;
  margin-left: auto;
  margin-right: auto;
}

.game-btn {
  background: linear-gradient(135deg, #2E7D32 0%, #4CAF50 100%);
  color: #FFFFFF;
  padding: 15px 20px;
  font-size: 1.3rem;
  border-radius: 12px;
  text-decoration: none;
  border: 4px solid #1B5E20;
  box-shadow: 4px 4px 0px #0D4E17;
  transition: 0.2s;
  text-shadow: 2px 2px 0px #1B5E20;
  font-weight: 900;
}

.game-btn:hover {
  transform: translateY(-4px);
  box-shadow: 6px 6px 0px #0D4E17, 0 0 15px rgba(46, 125, 50, 0.5);
}

.game-btn:active {
  transform: scale(0.95);
}

/* Alternate button style */
.game-btn.alt {
  background: linear-gradient(135deg, #FFC107 0%, #FFD54F 100%);
  border-color: #FFA000;
  box-shadow: 4px 4px 0px #FF8F00;
  color: #1B5E20;
  text-shadow: 1px 1px 0px rgba(255, 255, 255, 0.5);
}

.game-btn.alt:hover {
  box-shadow: 6px 6px 0px #FF8F00, 0 0 15px rgba(255, 193, 7, 0.5);
}

/* === FOOTER === */
footer {
  margin-top: 40px;
  padding: 15px;
  background: linear-gradient(135deg, #2E7D32 0%, #4CAF50 100%);
  border-top: 6px solid #1B5E20;
  font-size: 0.9rem;
  color: #FFFFFF;
}

/* === MOBILE FRIENDLY === */
@media (min-width: 600px) {
  .button-container {
    flex-direction: row;
    justify-content: center;
  }
}