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

body {
  font-family: 'Poppins', sans-serif;
  min-height: 100vh;
  background: radial-gradient(circle at top, #1a1a2e, #0f0f1a);
  color: #eaeaea;
  padding: 30px;
}

/* Title */
h1 {
  font-family: 'Playfair Display', serif;
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 30px;
}

/* Controls */
.controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 25px;

  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(18px);
  border-radius: 18px;
  padding: 15px;

  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}

input, select {
  padding: 10px;
  border-radius: 10px;
  border: none;
  background: rgba(255,255,255,0.08);
  color: white;
}

button {
  padding: 10px 16px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(135deg, #6a5acd, #836fff);
  color: white;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(106,90,205,0.4);
}

/* Filter */
.filter-bar {
  text-align: center;
  margin-bottom: 25px;
}

.filter-btn {
  margin: 6px;
  padding: 8px 16px;
  border-radius: 30px;
  border: 1px solid rgba(255,255,255,0.2);
  background: transparent;
  color: #ccc;
  cursor: pointer;
}

.filter-btn:hover {
  background: rgba(255,255,255,0.1);
  color: white;
}

.active {
  background: linear-gradient(135deg, #836fff, #6a5acd);
  color: white;
  border: none;
}

/* Gallery */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  max-width: 1200px;
  margin: auto;
}

/* Card */
.card {
  position: relative;
  border-radius: 18px;
  overflow: hidden;

  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,0.08);

  transition: 0.4s;
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 12px 40px rgba(0,0,0,0.6);
}

/* Image */
.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  cursor: pointer;
  transition: 0.4s;
}

.card:hover img {
  transform: scale(1.05);
  filter: brightness(0.85);
}

/* Remove Button */
.remove-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(255,0,0,0.8);
  border: none;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  color: white;
  cursor: pointer;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.95);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.lightbox img {
  max-width: 85%;
  max-height: 80%;
  border-radius: 12px;
}

/* Arrows */
.nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);

  font-size: 1.8rem;
  background: rgba(0, 0, 0, 0.4);
  border: none;
  color: white;
  padding: 12px;
  border-radius: 50%;
  cursor: pointer;

  backdrop-filter: blur(10px);
  transition: 0.3s;
}

.nav-btn:hover {
  background: rgba(0, 0, 0, 0.7);
}

.prev { left: 40px; }
.next { right: 40px; }

/* File Upload */
#category {
  color: #836fff;
}

.file-upload {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

.file-upload input {
  display: none;
}

.file-upload span {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 10px;
  background: linear-gradient(135deg, #6a5acd, #836fff);
  color: white;
  font-size: 14px;
  transition: 0.3s ease;

  box-shadow: 0 4px 15px rgba(106, 90, 205, 0.3);
}

.file-upload span:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(106, 90, 205, 0.5);
}

/* Tablet */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  .gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile */
@media (max-width: 480px) {
  body {
    padding: 15px;
  }

  h1 {
    font-size: 1.6rem;
  }

  .controls {
    flex-direction: column;
    align-items: stretch;
  }

  input,
  select,
  button {
    width: 100%;
  }

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

  .card img {
    height: 160px;
  }

  /* 🔥 FIXED LIGHTBOX FOR MOBILE */
  .lightbox img {
    max-width: 90%;
    max-height: 70%;
  }

  .nav-btn {
    top: auto;
    bottom: 20px;
    transform: none;
    font-size: 1.4rem;
    padding: 10px;
  }

  .prev {
    left: 25%;
  }

  .next {
    right: 25%;
  }
}