:root {
  --bg: #0f1115;
  --panel: #171a21;
  --border: #2a2e37;
  --text: #f2f3f5;
  --muted: #9aa1ac;
  --accent: #ff6a3d;
  --accent-hover: #ff7f57;
  --danger: #e35d5d;
  --ok: #3ecf8e;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

header .brand { font-weight: 700; font-size: 1.2rem; }
header .brand span { color: var(--accent); }

nav a {
  color: var(--text);
  text-decoration: none;
  margin-left: 1.25rem;
  font-size: 0.95rem;
}
nav a:hover { color: var(--accent); }

main { max-width: 1080px; margin: 0 auto; padding: 1.5rem; }

.categories { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.categories button {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
}
.categories button.active { background: var(--accent); border-color: var(--accent); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card .thumb {
  height: 130px;
  background: #22262f;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
  padding: 0.5rem;
}
.card .thumb img { width: 100%; height: 100%; object-fit: cover; }

.card .body { padding: 0.8rem; display: flex; flex-direction: column; gap: 0.4rem; flex: 1; }
.card .name { font-weight: 600; font-size: 0.95rem; }
.card .price { color: var(--accent); font-weight: 700; }
.card .stock { color: var(--muted); font-size: 0.78rem; }

button, .btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0.5rem 0.9rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
}
button:hover, .btn:hover { background: var(--accent-hover); }
button.secondary { background: transparent; border: 1px solid var(--border); color: var(--text); }
button.danger { background: var(--danger); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

input, select, textarea {
  width: 100%;
  padding: 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #10131a;
  color: var(--text);
  font-size: 0.9rem;
}

label { display: block; font-size: 0.8rem; color: var(--muted); margin: 0.6rem 0 0.25rem; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.2rem;
  margin-bottom: 1.5rem;
}

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.5rem; border-bottom: 1px solid var(--border); font-size: 0.85rem; }

.cart-row { display: flex; align-items: center; gap: 0.75rem; padding: 0.6rem 0; border-bottom: 1px solid var(--border); }
.cart-row .info { flex: 1; }
.cart-row input[type="number"] { width: 60px; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.72rem;
  background: #22262f;
  color: var(--muted);
}
.badge.ok { color: var(--ok); }

.total-row { display: flex; justify-content: space-between; font-weight: 700; font-size: 1.1rem; margin-top: 0.75rem; }

.message { padding: 0.6rem 0.9rem; border-radius: 6px; margin: 0.75rem 0; font-size: 0.85rem; }
.message.error { background: rgba(227, 93, 93, 0.15); color: var(--danger); }
.message.success { background: rgba(62, 207, 142, 0.15); color: var(--ok); }

.muted { color: var(--muted); font-size: 0.85rem; }