:root {
  --accent: #ffd700;
  --accent-glow: rgba(255, 215, 0, 0.3);
  --bg-dark: #111111;
  --text-light: #fdfdfd;
  font-family: 'Segoe UI', sans-serif;
}

body {
  margin: 0;
  background: url("img/interior.jpg") center/cover no-repeat fixed;
  color: var(--text-light);
  line-height: 1.6;
  padding-top: 80px;
}

a {
  color: inherit;
  text-decoration: none;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 60px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 999;
}

.header-logo {
  height: 40px;
}

nav ul {
  display: flex;
  gap: 30px;
  list-style: none;
}

nav a:hover {
  color: var(--accent);
}

/* Section Layout */
.glass-section {
  padding: 60px 10%;
}

/* Heading */
.subheading {
  text-align: center;
  text-shadow: -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000, 1px 1px 0 #000;
  font-size: 1.8rem;
  color: var(--accent);
  margin-bottom: 40px;
  background-color: rgba(34, 34, 34, 0.322);
}

hr { background-color: rgba(12, 12, 12, 0.719); height: 1px; border: 0; }

/* Selection Cards */
.selection-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.select-card {
  background: rgba(0, 0, 0, 0.4);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 20px;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.select-card p {
color: rgba(255, 255, 255, 0.596);
margin: 0;
font-size: small;
}

.select-card:hover {
  transform: scale(1.03);
}

.select-card.selected {
  border-color: var(--accent);
  font-weight: bold;
  color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}



/* Button Styling */
.btn {
  background: var(--accent);
  color: #000;
  border: none;
  padding: 12px 28px;
  border-radius: 5px;
  font-weight: bold;
  box-shadow: 0 0 5px var(--accent-glow), 0 0 10px var(--accent-glow);
  transition: all 0.2s ease-in-out;
  position: relative;
  overflow: hidden;
  font-size: 1rem;
}

.btn:hover {
  box-shadow: 0 0 10px var(--accent), 0 0 20px var(--accent);
  transform: scale(1.05);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(120deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.5) 50%, rgba(255,255,255,0) 100%);
  transform: skewX(-20deg);
  pointer-events: none;
}

.btn.shimmer.animate::before {
  animation: shimmer 1s ease forwards;
}

@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

.btn-wrapper {
  text-align: center;
  margin-top: 40px;
}

/* Footer */
footer {
  background: #111111;
  padding: 60px 10%;
  color: #fff;
  text-align: center;
}