:root {
  --bg: var(--tg-theme-bg-color, #17212b);
  --secondary-bg: var(--tg-theme-secondary-bg-color, #232e3c);
  --text: var(--tg-theme-text-color, #f5f5f5);
  --hint: var(--tg-theme-hint-color, #8a9aa9);
  --link: var(--tg-theme-link-color, #5ea9dd);
  --button: var(--tg-theme-button-color, #50a8eb);
  --button-text: var(--tg-theme-button-text-color, #ffffff);
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding: 0 14px 32px;
}

.hidden { display: none !important; }

.topbar {
  position: sticky;
  top: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0 8px;
  z-index: 5;
}
.topbar h1 { font-size: 20px; margin: 0; }

.search-row { margin: 6px 0 12px; }

input, textarea, select {
  width: 100%;
  background: var(--secondary-bg);
  color: var(--text);
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 15px;
}
input:focus, textarea:focus { outline: none; border-color: var(--button); }

.status { color: var(--hint); font-size: 14px; padding: 8px 2px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 360px) { .grid { grid-template-columns: 1fr; } }

.card {
  background: var(--secondary-bg);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.card .thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: #2c3a4a;
}
.card .thumb.placeholder {
  display: flex; align-items: center; justify-content: center;
  font-size: 34px; color: var(--hint);
}
.card .body { padding: 10px 12px 12px; }
.card .name { font-size: 14px; font-weight: 600; line-height: 1.25; }
.card .price { margin-top: 6px; font-size: 15px; font-weight: 700; color: var(--link); }

.pager {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 18px; gap: 10px;
}
.pager span { color: var(--hint); font-size: 13px; }

.btn-primary {
  background: var(--button); color: var(--button-text);
  border: none; border-radius: var(--radius);
  padding: 10px 16px; font-size: 15px; font-weight: 600; cursor: pointer;
}
.btn-primary.block { width: 100%; padding: 14px; margin-top: 8px; }
.btn-ghost {
  background: transparent; color: var(--link);
  border: 1px solid var(--secondary-bg); border-radius: var(--radius);
  padding: 9px 14px; font-size: 14px; cursor: pointer;
}
.btn-ghost:disabled { opacity: 0.4; cursor: default; }
.back { margin: 8px 0 14px; }

/* detail */
#detailContent .hero {
  width: 100%; border-radius: var(--radius); margin-bottom: 14px;
  max-height: 60vh; object-fit: cover;
}
#detailContent .hero.placeholder {
  aspect-ratio: 16 / 10; background: var(--secondary-bg);
  display: flex; align-items: center; justify-content: center; font-size: 48px; color: var(--hint);
}
#detailContent h2 { margin: 6px 0; }
#detailContent .price-big { font-size: 22px; font-weight: 800; color: var(--link); margin: 4px 0 14px; }
#detailContent .desc { white-space: pre-wrap; line-height: 1.5; color: var(--text); }

/* form */
form label { display: block; margin: 12px 0 0; font-size: 14px; color: var(--hint); }
form label input, form label textarea { margin-top: 6px; }
#preview { margin-top: 12px; width: 100%; border-radius: var(--radius); max-height: 240px; object-fit: cover; }
.form-error { color: #ff6b6b; font-size: 14px; margin-top: 10px; min-height: 18px; }