/* 1. RESET */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 2. CSS VARIABLES */
:root {
  --color-primary: #00ffd0;
  --color-bg: #0f0f0f;
  --color-card-bg: #1c1c1c;
  --color-card-hover-bg: #262626;
  --transition-fast: 0.2s ease-in-out;
  --transition-base: 0.3s ease;
  --transition-slow: 0.4s ease;
  --border-radius: 8px;
  --grid-gap: 20px;
}

/* 3. DYNAMIC BACKGROUND */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: url('https://wallpaperaccess.com/full/895265.jpg') center/cover no-repeat;
  filter: brightness(1.1) blur(2px);
  opacity: 0.85;
  z-index: -2;
  animation: bgZoomFade 60s ease-in-out infinite alternate;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at center, rgba(0,255,208,0.08), transparent 70%);
  z-index: -1;
  pointer-events: none;
}

@keyframes bgZoomFade {
  0%   { transform: scale(1);      opacity: 0.85; }
  50%  { transform: scale(1.08) translate(2%, 2%); opacity: 1; }
  100% { transform: scale(1);      opacity: 0.85; }
}

/* 4. BASE & HEADER */
body {
  font-family: 'Segoe UI', sans-serif;
  background: var(--color-bg);
  color: #fff;
  line-height: 1.6;
  padding: 20px;
}

header {
  text-align: center;
  margin-bottom: 30px;
}

header h1 {
  font-size: 2.8rem;
  color: var(--color-primary);
  text-shadow:
    0 0 10px rgba(0,255,208,0.6),
    0 0 20px rgba(0,255,208,0.4);
  animation: pulseShadow 8s ease-in-out infinite alternate;
}

@keyframes pulseShadow {
  from { text-shadow: 0 0 10px rgba(0,255,208,0.6); }
  to   { text-shadow: 0 0 20px rgba(0,255,208,0.8); }
}

header p {
  font-size: 1.2rem;
  color: #ccc;
  margin-top: 8px;
}

/* 5. CATEGORY BUTTONS */
.categories-filter {
  text-align: center;
  margin-bottom: 25px;
}

.category-btn {
  margin: 0 6px;
  padding: 8px 16px;
  font-size: 0.95rem;
  border: 1px solid #555;
  background: #222;
  color: #ddd;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition:
    background var(--transition-base),
    color var(--transition-base),
    transform var(--transition-fast),
    box-shadow var(--transition-base);
}

.category-btn:hover {
  background: #444;
  color: #fff;
  box-shadow: 0 4px 12px rgba(0,255,208,0.3);
  transform: scale(1.08);
}

.category-btn.active {
  background: var(--color-primary);
  color: #000;
  border-color: var(--color-primary);
}

/* 6. SEARCH BAR */
.search-bar {
  text-align: center;
  margin-bottom: 30px;
}

#searchInput {
  width: 60%;
  max-width: 400px;
  padding: 10px 14px;
  font-size: 1rem;
  border-radius: var(--border-radius);
  border: 1px solid #ccc;
  transition:
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

#searchInput:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 10px rgba(0,255,208,0.6);
}

/* 7. GRID & CARDS */
.game-grid {
  display: grid;
  gap: var(--grid-gap);
  padding: 0 10px;
}

@media (max-width: 480px) {
  .game-grid { grid-template-columns: 1fr; gap: 15px; }
}
@media (min-width: 481px) and (max-width: 767px) {
  .game-grid { grid-template-columns: repeat(2,1fr); }
}
@media (min-width: 768px) and (max-width: 1024px) {
  .game-grid { grid-template-columns: repeat(3,1fr); }
}
@media (min-width: 1025px) {
  .game-grid { grid-template-columns: repeat(4,1fr); }
}

.game-card {
  position: relative;
  background: var(--color-card-bg);
  border-radius: var(--border-radius);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  display: flex;
  flex-direction: column;
  animation: fadeUp var(--transition-slow) ease both;
}

.game-card:nth-child(odd)  { animation-delay: 0.1s; }
.game-card:nth-child(even) { animation-delay: 0.2s; }

@keyframes fadeUp {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.game-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.game-card:hover {
  background: var(--color-card-hover-bg);
  transform: scale(1.06) translateY(-5px);
  box-shadow: 0 12px 25px rgba(0,255,208,0.2);
}

.game-card:hover img {
  transform: scale(1.1) rotate(1deg);
}

/* Always show game title */
.game-card h2 {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 12px;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(5px);
  color: #fff;
  font-size: 1rem;
  text-align: center;
  transition: background var(--transition-fast);
}

.game-card:hover h2 {
  background: rgba(0,0,0,0.8);
}

/* 8. NO RESULTS */
.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 25px;
  font-size: 1.2rem;
  color: #ff6b6b;
}

/* 9. FOOTER */
footer {
  text-align: center;
  margin-top: 50px;
  font-size: 0.9rem;
  color: #888;
}
/* Modal backdrop */
.modal {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.7);
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

/* Modal box */
.modal-content {
  background: #1e1e1e;
  color: #fff;
  padding: 2rem;
  max-width: 400px;
  border-radius: 8px;
  text-align: center;
  position: relative;
}

/* Close button */
.close-btn {
  position: absolute;
  top: 0.5rem; right: 1rem;
  font-size: 1.5rem;
  cursor: pointer;
}

/* “Play Now” button */
.play-btn {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: #ff3e3e;
  color: #fff;
  border-radius: 4px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.2s ease;
}

.play-btn:hover {
  background: #e03333;
}