/* ===== VARIABLES CSS ===== */
:root {
  --color-bg: #0a0a0f;
  --color-bg-light: #1a1a2e;
  --color-primary: #00ff88;
  --color-secondary: #ff00ff;
  --color-accent: #00ffff;
  --color-text: #e0e0e0;
  --color-text-muted: #888888;
  --color-border: #333344;
  --font-pixel: 'Press Start 2P', monospace;
  --font-retro: 'VT323', monospace;
}

/* ===== RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-retro);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  background-image: 
    linear-gradient(rgba(0, 255, 136, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 136, 0.03) 1px, transparent 1px);
  background-size: 20px 20px;
}

/* ===== ANIMATIONS ===== */
@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes neonPulse {
  0%, 100% { 
    text-shadow: 0 0 5px var(--color-primary), 0 0 10px var(--color-primary), 0 0 20px var(--color-primary);
  }
  50% { 
    text-shadow: 0 0 10px var(--color-primary), 0 0 20px var(--color-primary), 0 0 40px var(--color-primary);
  }
}

@keyframes scanlines {
  0% { background-position: 0 0; }
  100% { background-position: 0 4px; }
}

/* ===== HEADER ===== */
.header {
  text-align: center;
  padding: 60px 20px;
  background: linear-gradient(180deg, var(--color-bg-light) 0%, var(--color-bg) 100%);
  border-bottom: 4px solid var(--color-primary);
  position: relative;
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 255, 136, 0.03) 2px,
    rgba(0, 255, 136, 0.03) 4px
  );
  pointer-events: none;
  animation: scanlines 0.5s linear infinite;
}

.header h1 {
  font-family: var(--font-pixel);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--color-primary);
  animation: neonPulse 2s ease-in-out infinite;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}

.header .subtitle {
  font-family: var(--font-retro);
  font-size: 1.5rem;
  color: var(--color-accent);
  letter-spacing: 3px;
}

.header .cursor {
  display: inline-block;
  width: 15px;
  height: 25px;
  background-color: var(--color-primary);
  margin-left: 5px;
  animation: blink 1s step-end infinite;
  vertical-align: middle;
}

/* ===== CONTAINER ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== SECTION ===== */
.section {
  padding: 60px 0;
}

.section-title {
  font-family: var(--font-pixel);
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--color-secondary);
  text-align: center;
  margin-bottom: 40px;
  text-shadow: 0 0 10px var(--color-secondary);
}

/* ===== INTRODUCTION ===== */
.introduction {
  background-color: var(--color-bg-light);
  border: 4px solid var(--color-border);
  border-radius: 0;
  padding: 30px;
  position: relative;
}

.introduction::before {
  content: '/* INTRODUCTION */';
  position: absolute;
  top: -12px;
  left: 20px;
  background-color: var(--color-bg-light);
  padding: 0 10px;
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--color-accent);
}

.introduction p {
  font-size: 1.3rem;
  margin-bottom: 20px;
  text-align: justify;
}

.introduction p:last-child {
  margin-bottom: 0;
}

.highlight {
  color: var(--color-primary);
  font-weight: bold;
}

/* ===== GALLERY ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 25px;
}

.gallery-item {
  background-color: var(--color-bg-light);
  border: 3px solid var(--color-border);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.gallery-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 255, 136, 0.2);
}

.gallery-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  image-rendering: pixelated;
  display: block;
}

.gallery-item-info {
  padding: 15px;
  border-top: 2px solid var(--color-border);
}

.gallery-item-title {
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.gallery-item-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
}

/* ===== POPUP OVERLAY ===== */
.popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.95);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 10;
  padding: 20px;
}

.popup-overlay.active {
  display: flex;
}

.popup-content {
  max-width: 90%;
  max-height: 90%;
  position: relative;
  animation: float 3s ease-in-out infinite;
}

.popup-content img {
  max-width: 100%;
  max-height: 80vh;
  border: 4px solid var(--color-primary);
  image-rendering: pixelated;
}

.popup-info {
  text-align: center;
  margin-top: 20px;
}

.popup-title {
  font-family: var(--font-pixel);
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.popup-desc {
  font-size: 1.2rem;
  color: var(--color-text);
}

.popup-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: 2px solid var(--color-secondary);
  color: var(--color-secondary);
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  padding: 8px 15px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.popup-close:hover {
  background-color: var(--color-secondary);
  color: var(--color-bg);
}

/* ===== FORMULAIRE ===== */
.form-section {
  background-color: var(--color-bg-light);
  border: 4px solid var(--color-border);
  padding: 30px;
  position: relative;
}

.form-section::before {
  content: '/* FORMULAIRE */';
  position: absolute;
  top: -12px;
  left: 20px;
  background-color: var(--color-bg-light);
  padding: 0 10px;
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--color-accent);
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  font-family: var(--font-pixel);
  font-size: 0.7rem;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 15px;
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  color: var(--color-text);
  font-family: var(--font-retro);
  font-size: 1.1rem;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-group input[type="file"] {
  padding: 10px;
  cursor: pointer;
}

.form-group input[type="file"]::file-selector-button {
  background-color: var(--color-primary);
  color: var(--color-bg);
  border: none;
  padding: 8px 15px;
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  cursor: pointer;
  margin-right: 15px;
  transition: all 0.3s ease;
}

.form-group input[type="file"]::file-selector-button:hover {
  background-color: var(--color-accent);
}

.btn-submit {
  background-color: transparent;
  border: 3px solid var(--color-primary);
  color: var(--color-primary);
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  padding: 15px 30px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: block;
  width: 100%;
}

.btn-submit:hover {
  background-color: var(--color-primary);
  color: var(--color-bg);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
}

.form-success {
  display: none;
  text-align: center;
  padding: 20px;
  background-color: rgba(0, 255, 136, 0.1);
  border: 2px solid var(--color-primary);
  margin-top: 20px;
}

.form-success.active {
  display: block;
}

.form-success p {
  color: var(--color-primary);
  font-family: var(--font-pixel);
  font-size: 0.8rem;
}

/* ===== FOOTER ===== */
.footer {
  background-color: var(--color-bg-light);
  border-top: 4px solid var(--color-primary);
  padding: 40px 20px;
  margin-top: 60px;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-title {
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  color: var(--color-primary);
  margin-bottom: 20px;
  text-align: center;
}

.footer-section {
  margin-bottom: 25px;
  padding: 15px;
  background-color: rgba(0, 0, 0, 0.3);
  border-left: 3px solid var(--color-accent);
}

.footer-section h3 {
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.footer-section p {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.footer-copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-pixel);
  font-size: 0.6rem;
  color: var(--color-text-muted);
}

/* ===== USER IMAGES SECTION ===== */
.user-images-section {
  margin-top: 40px;
  padding-top: 40px;
  border-top: 2px dashed var(--color-border);
}

.user-images-title {
  font-family: var(--font-pixel);
  font-size: 0.9rem;
  color: var(--color-accent);
  text-align: center;
  margin-bottom: 30px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .header {
    padding: 40px 15px;
  }

  .section {
    padding: 40px 0;
  }

  .introduction,
  .form-section {
    padding: 20px;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
  }

  .popup-close {
    top: -50px;
    right: 50%;
    transform: translateX(50%);
  }
}

@media (max-width: 480px) {
  .header h1 {
    font-size: 1.2rem;
  }

  .section-title {
    font-size: 0.9rem;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }
}