/* ─── iOS-style admin UI ──────────────────────────────────────────────────
 *
 * 设计原则 (跟 Flutter App 一致):
 *   · 系统字体 SF Pro / 平方
 *   · 卡片大圆角 (14-18px)
 *   · 微妙阴影 + 半透明 backdrop-blur
 *   · 主题紫 #6e44ff
 *   · 高对比按钮, 大触控区
 *   · 多空白, 少分隔线
 */

* { box-sizing: border-box; }

:root {
  --primary: #6e44ff;
  --primary-dark: #5a35e0;
  --primary-bg: rgba(110, 68, 255, 0.08);
  --text: #1c1c1e;
  --text-secondary: #6b6b70;
  --text-tertiary: #8e8e93;
  --bg: #f2f2f7;
  --card-bg: rgba(255, 255, 255, 0.85);
  --card-border: rgba(0, 0, 0, 0.06);
  --divider: rgba(0, 0, 0, 0.06);
  --success: #34c759;
  --warning: #ff9500;
  --danger: #ff3b30;
  --info: #007aff;
}

html, body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
               "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Header ─────────────────────────────────────────────────────────────── */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  background: linear-gradient(135deg, #6e44ff 0%, #b974ff 100%);
  color: white;
  box-shadow: 0 2px 20px rgba(110, 68, 255, 0.25);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
}
header h1 { margin: 0; font-size: 19px; font-weight: 700; letter-spacing: -0.3px; }
.user-bar {
  display: flex;
  gap: 16px;
  align-items: center;
  font-size: 13px;
}
.user-bar .role-pill {
  background: rgba(255, 255, 255, 0.22);
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  backdrop-filter: blur(10px);
}

/* ─── View / Layout ────────────────────────────────────────────────────── */
.view { padding: 28px; max-width: 1280px; margin: 0 auto; }
.hidden { display: none !important; }

/* ─── 登录页 ───────────────────────────────────────────────────────────── */
.login-card {
  max-width: 400px;
  margin: 80px auto 0;
  padding: 36px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.5);
}
.login-card h2 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.4px;
}
.login-card .hint {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 13px;
}

/* ─── Forms ────────────────────────────────────────────────────────────── */
form label {
  display: block;
  margin-bottom: 16px;
  font-weight: 500;
  font-size: 13px;
  color: var(--text-secondary);
}
form label small {
  font-weight: normal;
  color: var(--text-tertiary);
  margin-left: 4px;
}
form input[type=text],
form input[type=email],
form input[type=password],
form input[type=number],
form input[type=file],
form select,
form textarea {
  width: 100%;
  padding: 11px 14px;
  margin-top: 6px;
  border: 1px solid #d1d1d6;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  transition: all 0.15s;
}
form input:focus,
form select:focus,
form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(110, 68, 255, 0.12);
  background: white;
}
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.checkbox-line {
  display: flex !important;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
}
.checkbox-line input { width: auto !important; margin: 0 !important; }
.checkbox-line span { flex: 1; color: var(--text); }

/* ─── 按钮 (iOS 系统按钮风格) ───────────────────────────────────────── */
.btn-primary, .btn-secondary, .btn-link, .btn-danger {
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  padding: 11px 18px;
  transition: all 0.15s cubic-bezier(0.4, 0.0, 0.2, 1);
  letter-spacing: 0.1px;
}
.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 2px 8px rgba(110, 68, 255, 0.30);
}
.btn-primary:hover:not(:disabled) {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(110, 68, 255, 0.35);
}
.btn-primary:active:not(:disabled) { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; box-shadow: none; }
.btn-secondary {
  background: rgba(120, 120, 128, 0.16);
  color: var(--text);
}
.btn-secondary:hover { background: rgba(120, 120, 128, 0.24); }
.btn-link {
  background: transparent;
  color: white;
  padding: 4px 8px;
  text-decoration: none;
  opacity: 0.85;
}
.btn-link:hover { opacity: 1; text-decoration: underline; }
.btn-danger {
  background: var(--danger);
  color: white;
  box-shadow: 0 2px 8px rgba(255, 59, 48, 0.30);
}
.btn-danger:hover:not(:disabled) {
  background: #d92e23;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 59, 48, 0.35);
}

/* ─── Tab 导航 ───────────────────────────────────────────────────────── */
.tab-nav {
  display: flex;
  gap: 6px;
  margin-bottom: 24px;
  padding: 6px;
  background: rgba(120, 120, 128, 0.12);
  border-radius: 14px;
  overflow-x: auto;
}
.tab-btn {
  background: transparent;
  border: none;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 9px;
  transition: all 0.2s cubic-bezier(0.4, 0.0, 0.2, 1);
  font-family: inherit;
  white-space: nowrap;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active {
  background: white;
  color: var(--primary);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

/* ─── 卡片容器 ────────────────────────────────────────────────────────── */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 16px;
  padding: 22px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  border: 1px solid var(--card-border);
}
.upload-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 16px;
  padding: 16px 22px;
  margin-bottom: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  border: 1px solid var(--card-border);
}
.upload-card summary {
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  user-select: none;
  padding: 8px 0;
  letter-spacing: -0.1px;
}
.upload-card[open] summary { margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--divider); }

/* ─── List header ────────────────────────────────────────────────────── */
.list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.list-header h2 { margin: 0; font-size: 19px; font-weight: 700; letter-spacing: -0.3px; }
.list-header h2 small { font-weight: 500; font-size: 13px; color: var(--text-tertiary); margin-left: 8px; }

/* ─── 表格 (iOS Settings 风格) ──────────────────────────────────────── */
table.release-table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  font-size: 13px;
  border: 1px solid var(--card-border);
}
table.release-table th,
table.release-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--divider);
}
table.release-table tr:last-child td { border-bottom: none; }
table.release-table th {
  background: rgba(120, 120, 128, 0.06);
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 11px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
table.release-table tr:hover td { background: rgba(110, 68, 255, 0.03); }
table.release-table tr.row-clickable { cursor: pointer; }
table.release-table tr.row-clickable:hover td { background: rgba(110, 68, 255, 0.08); }
table.release-table tr.withdrawn { opacity: 0.55; }
table.release-table tr.mandatory td.version-cell::after {
  content: ' · MANDATORY';
  color: var(--danger);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.row-actions {
  display: flex;
  gap: 6px;
}
.row-actions button {
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  background: rgba(120, 120, 128, 0.12);
  border: none;
  color: var(--text);
  font-family: inherit;
  transition: all 0.15s;
}
.row-actions button:hover { background: rgba(120, 120, 128, 0.20); }
.row-actions .btn-danger {
  background: var(--danger);
  color: white;
  font-weight: 700;
  box-shadow: 0 1px 3px rgba(255, 59, 48, 0.30);
}
.row-actions .btn-danger:hover {
  background: #d92e23;
  box-shadow: 0 2px 6px rgba(255, 59, 48, 0.40);
}

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.badge-green { background: rgba(52, 199, 89, 0.16); color: #126d2b; }
.badge-gray  { background: rgba(120, 120, 128, 0.18); color: var(--text-secondary); }
.badge-red   { background: rgba(255, 59, 48, 0.16); color: #c8201a; }
.badge-blue  { background: rgba(0, 122, 255, 0.16); color: #0049c4; }
.badge-orange{ background: rgba(255, 149, 0, 0.16); color: #b86c00; }
.badge-purple{ background: rgba(110, 68, 255, 0.16); color: #4a2bcc; }

.tiny { font-size: 11.5px; color: var(--text-secondary); }

/* ─── 错误 / 提示 ────────────────────────────────────────────────────── */
.error { color: var(--danger); font-size: 13px; min-height: 18px; margin: 8px 0 0; }
.hint  { color: var(--text-secondary); font-size: 13px; }
code   {
  background: rgba(120, 120, 128, 0.16);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 12px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
}

/* ─── Modal ─────────────────────────────────────────────────────────── */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: fadeIn 0.2s ease-out;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.modal-card {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  padding: 28px;
  border-radius: 20px;
  width: min(520px, 92vw);
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.25);
  animation: scaleIn 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
.modal-card h3 {
  margin: 0 0 14px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.2px;
}
.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--divider);
}

/* ─── Dashboard 卡片 ─────────────────────────────────────────────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}
.stat-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 16px;
  padding: 20px 22px;
  border: 1px solid var(--card-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: transform 0.2s, box-shadow 0.2s;
}
.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
}
.stat-card .stat-label {
  font-size: 12px;
  color: var(--text-tertiary);
  font-weight: 600;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.stat-card .stat-value {
  font-size: 30px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -1px;
  line-height: 1.1;
}
.stat-card .stat-sub {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 6px;
}
.stat-card .stat-sub.up { color: var(--success); }
.stat-card .stat-sub.down { color: var(--danger); }

/* SKU stats list */
.sku-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
}
.sku-list-row {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  padding: 6px 0;
  border-bottom: 1px solid var(--divider);
}
.sku-list-row:last-child { border-bottom: none; }

/* role 徽章 */
.role-badge { font-size: 11px; padding: 3px 9px; border-radius: 999px; font-weight: 700; letter-spacing: 0.3px; }
.role-super  { background: rgba(255, 59, 48, 0.16); color: #c8201a; }
.role-oper   { background: rgba(0, 122, 255, 0.16); color: #0049c4; }
.role-viewer { background: rgba(120, 120, 128, 0.18); color: var(--text-secondary); }

/* 搜索 input 单独样式 */
.search-input {
  padding: 8px 12px;
  border: 1px solid #d1d1d6;
  border-radius: 10px;
  font-size: 13px;
  font-family: inherit;
  width: 240px;
  background: rgba(255, 255, 255, 0.8);
  transition: all 0.15s;
}
.search-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(110, 68, 255, 0.12);
  background: white;
}

/* ─── Loading skeleton (内嵌 keyframes) ────────────────────────────── */
@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 0.85; }
}
.loading-skeleton {
  animation: pulse 1.5s ease-in-out infinite;
  background: rgba(120, 120, 128, 0.12);
  border-radius: 8px;
  height: 14px;
}