Cards

<div class="float-card">
  <div class="icon">⚡</div>
  <h3>Fast Delivery</h3>
  <p>Ship to production in seconds.</p>
</div>

.float-card {
  background: #1c2030;
  border: 1px solid #2a2f42;
  border-radius: 14px;
  padding: 1.75rem;
  box-shadow: 0 4px 20px
    rgba(0,0,0,0.3);
  transition: transform 0.3s,
    box-shadow 0.3s;
}
.float-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 60px
    rgba(0,0,0,0.5),
    0 0 0 1px
    rgba(90,240,196,0.15);
}

<div class="flip-scene">
  <div class="flip-card-inner">
    <div class="flip-front">
      <div class="icon">🚀</div>
      <span>Front Side</span>
    </div>
    <div class="flip-back">
      <p>Back side content here.</p>
    </div>
  </div>
</div>

.flip-scene {
  perspective: 800px;
  cursor: pointer;
}
.flip-card-inner {
  position: relative;
  width: 100%; height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.6s ease;
}
.flip-scene:hover .flip-card-inner {
  transform: rotateY(180deg);
}
.flip-front, .flip-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: 12px;
}
.flip-back {
  transform: rotateY(180deg);
}

<!-- needs a colourful parent -->
<div class="gradient-bg">
  <div class="glass-card">
    <div class="avatar">👤</div>
    <h3>Alex Johnson</h3>
    <p>Senior Designer</p>
  </div>
</div>

.glass-card {
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 16px;
  padding: 1.75rem 2rem;
  color: white;
  box-shadow: 0 8px 32px
    rgba(0,0,0,0.2);
}
.gradient-bg {
  background: linear-gradient(135deg,
    #667eea, #764ba2, #ec4899);
  padding: 2rem;
  border-radius: 16px;
}

<div class="overlay-card">
  <img src="photo.jpg"
       class="card-img"/>
  <div class="card-body">
    <h3>Card Title</h3>
    <p>Card description text.</p>
  </div>
</div>

.overlay-card {
  position: relative;
  overflow: hidden;
  border-radius: 14px;
}
.card-img {
  width: 100%; display: block;
  transition: transform 0.4s ease;
}
.overlay-card:hover .card-img {
  transform: scale(1.08);
}
.card-body {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(
    to top, rgba(0,0,0,0.9) 60%, transparent);
  padding: 2rem 1.25rem 1.25rem;
  transform: translateY(40px);
  transition: transform 0.35s ease;
}
.overlay-card:hover .card-body {
  transform: translateY(0);
}

<div class="tilt-scene">
  <div class="tilt-card" id="tiltCard">
    <span class="icon">🎯</span>
    <h3>Tilt to Reveal</h3>
    <p>Move your cursor over me.</p>
  </div>
</div>

<script>
const card = document.getElementById('tiltCard');
card.addEventListener('mousemove', e => {
  const r = card.getBoundingClientRect();
  const x = (e.clientX - r.left) / r.width  - 0.5;
  const y = (e.clientY - r.top)  / r.height - 0.5;
  card.style.transform =
    `rotateY(${x * 22}deg) rotateX(${-y * 22}deg)`;
});
card.addEventListener('mouseleave', () => {
  card.style.transform = '';
});
</script>

.tilt-scene {
  perspective: 900px;
  display: inline-block;
}
.tilt-card {
  background: #1c2030;
  border: 1px solid #2a2f42;
  border-radius: 16px;
  padding: 2rem 1.5rem;
  transform-style: preserve-3d;
  transition: box-shadow 0.3s,
    transform 0.1s ease-out;
  will-change: transform;
}
/* child elements gain Z depth */
.tilt-card .icon {
  transform: translateZ(30px);
}
.tilt-card h3 {
  transform: translateZ(20px);
}
.tilt-card p {
  transform: translateZ(10px);
}

<div class="neon-card">
  <div class="icon">⚡</div>
  <h3>Neon Pulse</h3>
  <p>Hover to trigger the glow.</p>
</div>

.neon-card {
  background: #0d1117;
  border: 1.5px solid rgba(0,247,255,0.25);
  border-radius: 14px;
  padding: 1.75rem 1.5rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.neon-card:hover {
  border-color: #00f7ff;
  animation: neonPulse 1.6s ease-in-out infinite;
}
.neon-card h3 {
  color: #00f7ff;
  text-shadow: 0 0 8px rgba(0,247,255,0.4);
}
@keyframes neonPulse {
  0%,100% {
    box-shadow:
      0 0 18px rgba(0,247,255,0.35),
      0 0 40px rgba(0,247,255,0.15);
  }
  50% {
    box-shadow:
      0 0 28px rgba(0,247,255,0.55),
      0 0 65px rgba(0,247,255,0.25);
  }
}

<div class="spotlight-card" id="card">
  <div class="icon">🔦</div>
  <h3>Spotlight Effect</h3>
  <p>Move your cursor to cast light.</p>
</div>

<script>
const c = document.getElementById('card');
c.addEventListener('mousemove', e => {
  const r = c.getBoundingClientRect();
  c.style.setProperty('--sx',
    (e.clientX - r.left) + 'px');
  c.style.setProperty('--sy',
    (e.clientY - r.top) + 'px');
});
c.addEventListener('mouseleave', () => {
  c.style.setProperty('--sx', '-200px');
  c.style.setProperty('--sy', '-200px');
});
</script>

.spotlight-card {
  position: relative;
  overflow: hidden;
  background: #1c2030;
  border: 1px solid #2a2f42;
  border-radius: 14px;
  padding: 1.75rem 1.5rem;
  transition: border-color 0.2s;
}
.spotlight-card::before {
  content: '';
  position: absolute;
  width: 180px; height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle,
    rgba(90,240,196,0.18) 0%,
    transparent 70%);
  transform: translate(
    var(--sx, -200px),
    var(--sy, -200px))
    translate(-50%, -50%);
  pointer-events: none;
  transition: transform 0.08s linear;
}
.spotlight-card:hover {
  border-color: rgba(90,240,196,0.3);
}