:root {
  --primary: #FF6455;
  --primary-dark: #F14939;
  --bg: #f5f6f8;
  --card: #fff;
  --border: #e5e7eb;
  --text: #1f2937;
  --text-light: #6b7280;
  --success: #16a34a;
  --danger: #dc2626;
  --warn: #d97706;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
a { color: var(--primary); text-decoration: none; }
button {
  cursor: pointer;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
}
input, select, textarea {
  font-family: inherit;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  outline: none;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); }

.btn {
  padding: 8px 18px;
  background: var(--primary);
  color: #fff;
  font-weight: 500;
  transition: background 0.15s;
}
.btn:hover { background: var(--primary-dark); }
.btn.secondary { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn.secondary:hover { background: #f3f4f6; }
.btn.danger { background: var(--danger); }
.btn.small { padding: 5px 12px; font-size: 13px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ===== Login ===== */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #fff5f3 0%, #f5f6f8 100%);
}
.login-box {
  width: 380px;
  background: #fff;
  border-radius: 16px;
  padding: 40px 36px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}
.login-box h1 {
  font-size: 20px;
  margin: 0 0 4px;
  text-align: center;
}
.login-box .sub {
  text-align: center;
  color: var(--text-light);
  font-size: 13px;
  margin-bottom: 28px;
}
.login-box .field { margin-bottom: 16px; }
.login-box .field label { display: block; font-size: 13px; color: var(--text-light); margin-bottom: 6px; }
.login-box .field input { width: 100%; padding: 10px 12px; }
.login-box .btn { width: 100%; padding: 11px; margin-top: 8px; }
.login-error {
  background: #fef2f2;
  color: var(--danger);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 14px;
}

/* ===== Shell ===== */
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 200px;
  background: #1f2937;
  color: #fff;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}
.sidebar .brand {
  padding: 20px 18px;
  font-size: 16px;
  font-weight: 600;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.sidebar .brand small { display: block; font-size: 11px; opacity: 0.6; font-weight: 400; margin-top: 2px; }
.sidebar nav { flex: 1; padding: 10px 0; }
.sidebar nav a {
  display: block;
  padding: 11px 18px;
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  cursor: pointer;
}
.sidebar nav a:hover { background: rgba(255,255,255,0.05); color: #fff; }
.sidebar nav a.active { background: var(--primary); color: #fff; }
.sidebar .foot { padding: 14px 18px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 12px; color: rgba(255,255,255,0.6); }
.sidebar .foot .logout { color: #fca5a5; cursor: pointer; margin-top: 6px; display: inline-block; }

.main { flex: 1; padding: 24px 28px; overflow-y: auto; max-height: 100vh; }
.page-title {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card { background: var(--card); border-radius: 10px; padding: 18px 20px; margin-bottom: 16px; box-shadow: 0 1px 3px rgba(0,0,0,0.04); }
.card h3 { margin: 0 0 14px; font-size: 15px; }

.toolbar { display: flex; gap: 10px; margin-bottom: 16px; align-items: center; flex-wrap: wrap; }
.toolbar input, .toolbar select { padding: 7px 10px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
table th, table td { padding: 10px 8px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
table th { color: var(--text-light); font-weight: 500; font-size: 12px; }
table img.thumb { width: 42px; height: 42px; object-fit: cover; border-radius: 6px; }
table tr:hover { background: #fafafa; }

.tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; }
.tag.reviewing { background: #fef3c7; color: #92400e; }
.tag.pending_commission { background: #dbeafe; color: #1e40af; }
.tag.listed { background: #dcfce7; color: #166534; }
.tag.rejected { background: #fee2e2; color: #991b1b; }
.tag.previewing { background: #ede9fe; color: #5b21b6; }

.pagination { display: flex; gap: 8px; align-items: center; justify-content: flex-end; margin-top: 12px; font-size: 13px; }
.pagination button { padding: 4px 10px; background: #fff; border: 1px solid var(--border); color: var(--text); }
.pagination button:disabled { opacity: 0.4; }

.tabs { display: flex; border-bottom: 1px solid var(--border); margin-bottom: 18px; }
.tabs .tab { padding: 10px 16px; cursor: pointer; color: var(--text-light); border-bottom: 2px solid transparent; font-size: 14px; }
.tabs .tab.active { color: var(--primary); border-color: var(--primary); font-weight: 500; }

.form-row { display: flex; gap: 16px; margin-bottom: 14px; flex-wrap: wrap; }
.form-group { flex: 1; min-width: 220px; }
.form-group.full { flex: 1 1 100%; }
.form-group label { display: block; font-size: 13px; color: var(--text-light); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; }
.form-group textarea { resize: vertical; min-height: 70px; }
.hint { font-size: 12px; color: var(--text-light); margin-top: 4px; }

.img-upload-box {
  width: 110px; height: 110px;
  border: 1px dashed var(--border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--text-light);
  font-size: 12px;
  position: relative;
  overflow: hidden;
  background: #fafafa;
  flex-direction: column;
  gap: 4px;
}
.img-upload-box img { width: 100%; height: 100%; object-fit: cover; position: absolute; top:0; left:0; }
.img-upload-box .remove-btn {
  position: absolute; top: 2px; right: 2px;
  background: rgba(0,0,0,0.55); color: #fff;
  width: 18px; height: 18px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; z-index: 2; cursor: pointer;
}
.img-list { display: flex; gap: 10px; flex-wrap: wrap; }

.detail-block { border: 1px solid var(--border); border-radius: 8px; padding: 10px; margin-bottom: 10px; position: relative; }
.detail-block img { max-width: 100%; border-radius: 6px; display: block; }
.detail-block textarea { width: 100%; }
.detail-block .remove-btn { position: absolute; top: 6px; right: 6px; background: #fee2e2; color: var(--danger); border-radius: 4px; padding: 2px 8px; font-size: 12px; cursor: pointer; }

.sku-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.sku-table th, .sku-table td { border: 1px solid var(--border); padding: 6px; }
.sku-table input { width: 90px; padding: 5px 6px; }

.tag-picker { display: flex; gap: 8px; flex-wrap: wrap; }
.tag-picker .opt { padding: 6px 12px; border: 1px solid var(--border); border-radius: 16px; cursor: pointer; font-size: 13px; color: var(--text-light); }
.tag-picker .opt.selected { background: var(--primary); color: #fff; border-color: var(--primary); }

.category-picker { display: flex; gap: 8px; flex-wrap: wrap; }
.category-picker select { min-width: 140px; }

.status-msg { padding: 10px 14px; border-radius: 6px; font-size: 13px; margin-bottom: 14px; }
.status-msg.success { background: #dcfce7; color: #166534; }
.status-msg.error { background: #fee2e2; color: #991b1b; }
.status-msg.info { background: #dbeafe; color: #1e40af; }

.empty { text-align: center; padding: 60px 0; color: var(--text-light); font-size: 13px; }

.loading-overlay {
  position: fixed; inset: 0; background: rgba(255,255,255,0.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 999; font-size: 14px; color: var(--text-light);
}

.modal-mask {
  position: fixed; inset: 0; background: rgba(0,0,0,0.4);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
}
.modal-box {
  background: #fff; border-radius: 10px; padding: 22px 24px;
  width: 420px; max-width: 90vw;
  max-height: 85vh; overflow-y: auto;
}
.modal-box h3 { margin: 0 0 16px; font-size: 16px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }

.badge-count {
  display: inline-block; background: var(--danger); color: #fff;
  font-size: 11px; padding: 1px 6px; border-radius: 10px; margin-left: 6px;
}

.checkbox-row { display: flex; align-items: center; gap: 6px; }
.checkbox-row input { width: auto; }