:root {
  --bg: #f6f6f4;
  --card: #ffffff;
  --ink: #111111;
  --muted: #6b6b6b;
  --line: #e7e7e7;
  --accent: #111111;
  --danger: #d64545;
  --radius: 12px;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }

.container { width: min(1140px, 92%); margin-inline: auto; }

.admin-header {
  background: var(--ink);
  color: #fff;
  padding: 1rem 0;
  margin-bottom: 2rem;
}

.admin-header .container { display: flex; align-items: center; justify-content: space-between; }

.logo { font-weight: 800; letter-spacing: 0.04em; }
.logo span { font-weight: 400; color: #999; }
.logo em { font-style: normal; font-weight: 500; font-size: 0.7em; color: #999; margin-left: 0.4rem; }

.admin-header nav a {
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  border: 1px solid #555;
  padding: 0.4rem 1rem;
  border-radius: 999px;
}

.admin-header nav a:hover { background: #333; }

.notice {
  background: #fff8e1;
  border: 1px solid #f0dfa0;
  color: #6b5400;
  padding: 0.9rem 1.2rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.admin-grid {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.panel h2 { font-size: 1.15rem; margin-bottom: 1.2rem; }

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.panel-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.product-form label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--muted); margin-bottom: 1rem; }

.product-form input[type="text"],
.product-form input[type="number"],
.product-form input[type="url"],
.product-form textarea,
.product-form select {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  background: #fff;
  color: var(--ink);
}

.product-form input:focus,
.product-form textarea:focus,
.product-form select:focus {
  outline: 2px solid var(--ink);
  outline-offset: 1px;
}

.product-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }

.product-form input[type="file"] { margin-top: 0.5rem; font-size: 0.8rem; }

#f-preview {
  margin-top: 0.6rem;
  width: 72px;
  height: 90px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.form-actions { display: flex; gap: 0.6rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  background: var(--accent);
  color: #fff;
  border: 1px solid transparent;
  border-radius: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: opacity 0.15s;
}

.btn:hover { opacity: 0.85; }

.btn-ghost {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}

.btn-danger { background: var(--danger); }

.product-list { list-style: none; }

.product-list li {
  display: flex;
  gap: 0.9rem;
  align-items: center;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
}

.product-list li:last-child { border-bottom: none; }

.product-list img {
  width: 52px;
  height: 66px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}

.item-info { flex: 1; min-width: 0; }

.item-info .name { font-weight: 600; font-size: 0.95rem; }

.item-info .meta { font-size: 0.8rem; color: var(--muted); }

.item-actions { display: flex; gap: 0.4rem; }

.item-actions button {
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--ink);
}

.item-actions button:hover { background: var(--bg); }

.item-actions .del { color: var(--danger); border-color: #f0caca; }

.empty { color: var(--muted); font-size: 0.9rem; text-align: center; padding: 2rem 0; }

.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  background: var(--ink);
  color: #fff;
  padding: 0.8rem 1.4rem;
  border-radius: 999px;
  font-size: 0.9rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

@media (max-width: 900px) {
  .admin-grid { grid-template-columns: 1fr; }
}