@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@500&display=swap');

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

body {
  font-family: 'Poppins', sans-serif;
  background: #121212;
  color: #fff;
  text-align: center;
  padding: 50px 20px;
}

.title {
  font-size: 2rem;
  margin-bottom: 40px;
}

/* === Button Grid Layout === */
.button-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 60px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
}

/* === Base Button Style === */
.btn {
  padding: 12px 24px;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  width: 100%; /* Ensure buttons fill column evenly */
}

/* === Solid Button === */
.btn.solid {
  background: #1e90ff;
  color: white;
}
.btn.solid:hover {
  background: #1c7ed6;
}

/* === Outline Button === */
.btn.outline {
  background: transparent;
  color: #00bcd4;
  border: 2px solid #00bcd4;
}
.btn.outline:hover {
  background: #00bcd4;
  color: #121212;
}

/* === Gradient Button === */
.btn.gradient {
  background: linear-gradient(to right, #ff416c, #ff4b2b);
  color: white;
}
.btn.gradient:hover {
  opacity: 0.85;
}

/* === Glow Button === */
.btn.glow {
  background: #6a11cb;
  color: white;
  box-shadow: 0 0 12px #6a11cb;
}
.btn.glow:hover {
  box-shadow: 0 0 20px #6a11cb, 0 0 40px #6a11cb;
}

/* === Neon Button === */
.btn.neon {
  background: transparent;
  color: #39ff14;
  border: 2px solid #39ff14;
  text-shadow: 0 0 5px #39ff14;
}
.btn.neon:hover {
  box-shadow: 0 0 10px #39ff14, 0 0 20px #39ff14;
}

/* === Glass Button === */
.btn.glass {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(6px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}
.btn.glass:hover {
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 6px 18px rgba(255, 255, 255, 0.15);
}

/* === Shadow Button === */
.btn.shadow {
  background: #2c2c2c;
  color: #fff;
  box-shadow: 4px 4px 0 #00bcd4;
}
.btn.shadow:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 #00bcd4;
}

/* === Icon Button === */
.btn.icon {
  background: #1e90ff;
  color: #fff;
  font-size: 1.1rem;
  padding: 12px 20px;
}
.btn.icon:hover {
  background: #1c7ed6;
}

/* === Animated Border Button === */
.btn.border-animate {
  background: transparent;
  color: #00bcd4;
  border: 2px solid #00bcd4;
  position: relative;
  overflow: hidden;
  z-index: 1;
}
.btn.border-animate::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: #00bcd4;
  transition: left 0.4s ease;
  z-index: 0;
}
.btn.border-animate:hover::before {
  left: 0;
}
.btn.border-animate:hover {
  color: #121212;
}
.btn.border-animate span {
  position: relative;
  z-index: 1;
}

/* === Text Reveal Button === */
.btn.text-hover {
  background: linear-gradient(90deg, #00c6ff, #0072ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  border: 2px solid #00c6ff;
  transition: all 0.4s ease;
}
.btn.text-hover:hover {
  background: #fff;
  color: #121212;
  -webkit-text-fill-color: initial;
}

/* Responsive */

@media (max-width: 900px) {
  .button-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .button-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 400px) {
  .button-grid {
    grid-template-columns: 1fr;
  }
}