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

:root {
  --bg: #f5f5f3;
  --surface: #ffffff;
  --border: #e5e5e3;
  --text: #1a1a1a;
  --muted: #737373;
  --accent: #1a1a1a;
  --accent-fg: #ffffff;
  --info-bg: #eff6ff;
  --info-text: #1d4ed8;
  --danger: #dc2626;
  --radius: 10px;
  --radius-sm: 6px;
}

body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.6; }

a { color: var(--info-text); text-decoration: none; }
a:hover { text-decoration: underline; }

.btn-primary { background: var(--accent); color: var(--accent-fg); border: none; border-radius: var(--radius-sm); padding: 9px 18px; font-size: 14px; font-weight: 500; cursor: pointer; }
.btn-primary:hover { opacity: 0.85; }
.btn-ghost { background: transparent; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 8px 16px; font-size: 14px; color: var(--text); cursor: pointer; }
.btn-ghost:hover { background: var(--bg); }
.btn-danger { background: transparent; border: 1px solid #fca5a5; border-radius: var(--radius-sm); padding: 8px 16px; font-size: 14px; color: var(--danger); cursor: pointer; }
.btn-full { width: 100%; }

.error-msg { background: #fef2f2; border: 1px solid #fca5a5; color: var(--danger); border-radius: var(--radius-sm); padding: 10px 14px; font-size: 13px; margin-bottom: 14px; }

/* Auth */
.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.auth-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px 32px; width: 100%; max-width: 380px; }
.auth-logo { font-size: 20px; font-weight: 600; margin-bottom: 4px; }
.auth-sub { font-size: 13px; color: var(--muted); margin-bottom: 24px; }
.auth-toggle { font-size: 13px; color: var(--muted); text-align: center; margin-top: 18px; }

/* Forms */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 8px 12px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 14px; background: var(--surface);
  color: var(--text); outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: #a3a3a3; }
.form-group textarea { resize: vertical; min-height: 80px; }

/* Nav */
.nav { background: var(--surface); border-bottom: 1px solid var(--border); padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 52px; }
.nav-logo { font-size: 16px; font-weight: 600; }
.nav-right { display: flex; align-items: center; gap: 12px; }
.nav-user { font-size: 13px; color: var(--muted); }

/* Page */
.page { max-width: 1100px; margin: 0 auto; padding: 28px 24px; }
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.page-title { font-size: 20px; font-weight: 600; }

/* Filters */
.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; align-items: center; }
.filter-bar input, .filter-bar select { padding: 7px 12px; border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 13px; background: var(--surface); color: var(--text); outline: none; }
.filter-bar input { width: 220px; }

/* View toggle */
.view-toggle { display: flex; gap: 4px; }
.view-toggle button { background: transparent; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 6px 10px; cursor: pointer; color: var(--muted); }
.view-toggle button.active { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }

/* Grid view */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.product-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; cursor: pointer; transition: border-color 0.15s; }
.product-card:hover { border-color: #a3a3a3; }
.product-card-img { width: 100%; height: 160px; object-fit: cover; background: var(--bg); display: flex; align-items: center; justify-content: center; }
.product-card-img img { width: 100%; height: 160px; object-fit: cover; }
.product-card-body { padding: 12px; }
.product-card-name { font-size: 14px; font-weight: 500; margin-bottom: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.product-card-price { font-size: 13px; color: var(--muted); margin-bottom: 8px; }
.product-card-tags { display: flex; gap: 4px; flex-wrap: wrap; }
.tag { background: var(--info-bg); color: var(--info-text); font-size: 11px; border-radius: 4px; padding: 2px 7px; }

/* List view */
.product-list { display: flex; flex-direction: column; gap: 8px; }
.product-row { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; display: grid; grid-template-columns: 56px 1fr 120px 120px 160px auto; align-items: center; gap: 16px; cursor: pointer; transition: border-color 0.15s; }
.product-row:hover { border-color: #a3a3a3; }
.product-row-img { width: 48px; height: 48px; object-fit: cover; border-radius: var(--radius-sm); background: var(--bg); }
.product-row-name { font-size: 14px; font-weight: 500; }
.product-row-cat { font-size: 13px; color: var(--muted); }
.product-row-price { font-size: 14px; font-weight: 500; }
.product-row-tags { display: flex; gap: 4px; flex-wrap: wrap; }
.product-row-actions { display: flex; gap: 8px; justify-content: flex-end; }

/* Image upload */
.img-upload-area { border: 2px dashed var(--border); border-radius: var(--radius); padding: 28px; text-align: center; cursor: pointer; transition: border-color 0.15s; }
.img-upload-area:hover { border-color: #a3a3a3; }
.img-upload-area p { font-size: 13px; color: var(--muted); margin-top: 8px; }
.img-preview { width: 100%; max-height: 200px; object-fit: cover; border-radius: var(--radius); margin-top: 12px; display: none; }

/* Empty state */
.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty-state p { margin-bottom: 16px; }

/* Checkbox */
.checkbox-row { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.checkbox-row input[type="checkbox"] { width: 16px; height: 16px; cursor: pointer; }

/* Loading */
.loading { text-align: center; padding: 40px; color: var(--muted); font-size: 14px; }