* {
  box-sizing: border-box;
}

body {
  font-family: system-ui, sans-serif;
  margin: 0;
  color: #222;
  background: #fff;
}

/* HERO */
.hero {
  background: linear-gradient(135deg, #0f0f0f, #1c1c1c);
  color: white;
  padding: 90px 20px;
  text-align: center;
}

.cta {
  background: #00c853;
  color: white;
  padding: 14px 32px;
  border-radius: 30px;
  text-decoration: none;
  display: inline-block;
  margin-top: 25px;
  font-weight: bold;
}

/* GRID SECTIONS */
.grid-section {
  padding: 70px 20px;
  max-width: 1100px;
  margin: auto;
}

.grid-section.dark {
  background: #f8f9fa;
}

.grid-section.principles {
  text-align: center;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
}

.grid-card {
  padding: 25px;
  background: white;
  border-radius: 14px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.08);
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
}

.grid-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 50px rgba(0,0,0,0.18);
}

/* SHOWCASE */
.showcase {
  padding: 80px 20px;
  background: #111;
  color: white;
}

.showcase-grid {
  max-width: 1100px;
  margin: auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 30px;
}

.video-box video {
  width: 100%;
  border-radius: 16px;
}

.image-grid img {
  width: 100%;
  border-radius: 14px;
  transition: transform 0.3s;
}

.image-grid img:hover {
  transform: scale(1.06);
}

/* INFO */
.info-box {
  background: #f5ecec;
  padding: 30px;
}

.instructions {
  max-width: 800px;
  margin: auto;
}

/* PRICING */
.pricing {
  padding: 80px 20px;
  background: #484364;
  text-align: center;
}

.price-card {
  background: white;
  max-width: 420px;
  margin: auto;
  padding: 45px;
  border-radius: 22px;
  box-shadow: 0 25px 60px rgba(0,0,0,0.2);
  transition: transform 0.3s;
}

.price-card:hover {
  transform: scale(1.06);
}

.pulse {
  animation: pulse 2.5s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 rgba(0,0,0,0.2); }
  50% { box-shadow: 0 0 40px rgba(0,200,83,0.4); }
  100% { box-shadow: 0 0 0 rgba(0,0,0,0.2); }
}

.price {
  font-size: 44px;
}

.payment-status {
  margin-top: 15px;
  font-weight: bold;
}

/* FOOTER */
footer {
  padding: 25px;
  text-align: center;
  background: #fdfcfc;
}