:root {
  --primary-color: #0d3b66;
  --secondary-color: #f95738;
  --text-color: #333;
  --bg-color: #f9f9f9;
  --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  --transition: 0.4s ease;
}

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

body {
  font-family: "Segoe UI", sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  padding-top: 80px;
}

header {
  background-color: white;
  box-shadow: var(--box-shadow);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  text-align: center;
  padding: 20px 10px;
}

header h1 {
  color: var(--primary-color);
  font-size: 2rem;
}

/* Section Layout */
.training-section {
  padding: 40px 20px;
  max-width: 1200px;
  margin: auto;
}

.training-section h2 {
  font-size: 1.8rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.training-section p {
  margin-bottom: 30px;
  color: #444;
  font-size: 1rem;
  max-width: 800px;
}

/* Photo Grid */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.photo-grid img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: var(--box-shadow);
  transition: transform 0.3s ease;
}

.photo-grid img:hover {
  transform: scale(1.03);
}

/* Slide Up Animation */
.slide-up {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.6s ease-in-out;
}

.slide-up.appear {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive tweaks */
@media (max-width: 600px) {
  header h1 {
    font-size: 1.5rem;
  }

  .training-section p {
    font-size: 0.95rem;
  }

  .photo-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
}

main {
  position: relative;
  z-index: 2;
  background: #fff;
  padding: 50px 20px;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  transition: transform 0.5s ease, box-shadow 0.5s ease;
}

/* Glowing effect on hover */
main:hover {
  transform: scale(1.03);
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.6), 0 0 60px rgba(0, 140, 255, 0.4),
    0 0 90px rgba(0, 140, 255, 0.2);
}
main {
  opacity: 0;
  transform: translateY(80px);
  animation: strongSlideUp 1.2s ease-out forwards;
}

@keyframes strongSlideUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
img {
  transition: transform 0.6s ease, box-shadow 0.6s ease;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  will-change: transform, box-shadow;
  backface-visibility: hidden;
  display: block;
  width: 100%;
  height: auto;
}

/* Pop-out glow on hover and touch (desktop + mobile) */
img:hover,
img:focus,
img:active {
  transform: scale(1.1);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5), 0 0 40px rgba(0, 140, 255, 0.6),
    0 0 70px rgba(0, 140, 255, 0.4);
  z-index: 2;
}

/* Reveal effect when image scrolls into view */
.reveal {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}