:root {
  --bg: #0f1216;
  --card: #151a21;
  --text: #e6eaf0;
  --muted: #9aa3af;
  --accent: #4f8cff;
  --accent-2: #ff6b6b;
  --border: #2a3240;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}

.header {
  padding: 24px 16px;
  border-bottom: 1px solid var(--border);
}
.header h1 { margin: 0 0 6px; font-size: 22px; }
.header p { margin: 0; color: var(--muted); }

.upload { padding: 20px 16px; border-bottom: 1px solid var(--border); }
.upload-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 16px;
}
.dropzone {
  border: 1.5px dashed var(--border);
  border-radius: 10px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--muted);
  transition: border-color .2s, color .2s, background .2s;
  min-height: 160px;
}
.dropzone:hover { border-color: var(--accent); color: var(--text); background: #121720; cursor: pointer; }
.dropzone.dragover { border-color: var(--accent); background: #111826; color: var(--text); }
.dz-text { font-size: 14px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.preview {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: #0b0f14;
}
.preview img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background: #0a0d11;
}
.preview-meta {
  display: flex;
  justify-content: space-between;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 12px;
  border-top: 1px solid var(--border);
}
.actions {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 12px;
}
.status { color: var(--muted); }
.hidden { display: none; }

@media (max-width: 860px) {
  .upload-card { grid-template-columns: 1fr; }
  .preview img { height: 200px; }
}
@media (max-width: 640px) {
  .gallery {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  }
  .preview img { height: 180px; }
  .btn { width: 100%; }
  .actions { flex-direction: column; align-items: stretch; }
  .status { text-align: center; }
}

.tabs {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.tab-buttons { display: flex; gap: 8px; }
.tab-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
}
.tab-btn.active {
  border-color: var(--accent);
  color: var(--accent);
}

.gallery {
  padding: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: #0a0d11;
}
.card .meta {
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.meta .time {
  color: var(--muted);
  font-size: 12px;
}
.meta .actions { display: inline-flex; align-items: center; gap: 8px; }
.like {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
}
.like.liked {
  border-color: var(--accent-2);
  color: var(--accent-2);
}
.download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 6px;
  text-decoration: none;
}
.lightbox {
  position: fixed;
  left: 0; right: 0; top: 0; bottom: 0;
  background: rgba(10, 13, 17, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
}
.lightbox.hidden { display: none; }
.lightbox img {
  max-width: 92vw;
  max-height: 92vh;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,.5);
}