/* 题库宝 - 公共样式（与 prototype/common.css 对齐） */
@import url('https://cdn.jsdelivr.net/npm/remixicon@4.5.0/fonts/remixicon.css');

:root {
  --primary: #4f46e5;
  --primary-light: #818cf8;
  --primary-bg: #eef2ff;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bg: #f5f5f5;
  --card: #fff;
  --text: #1f2937;
  --text2: #6b7280;
  --text3: #9ca3af;
  --border: #e5e7eb;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.08);
}

.ri { font-size:18px; vertical-align:-.15em; }
.ri-sm { font-size:14px; }
.ri-lg { font-size:22px; }
.ri-xl { font-size:28px; }

* { margin:0; padding:0; box-sizing:border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background:#e8eaed; color:var(--text); }

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

.card { background:var(--card); border-radius:var(--radius); padding:16px; box-shadow:var(--shadow); margin-bottom:12px; }
.btn { padding:10px 20px; border:none; border-radius:8px; font-size:14px; cursor:pointer; font-weight:600; text-decoration:none; display:inline-block; }
.btn:hover { text-decoration: none; opacity: 0.9; }
.btn-primary { background:var(--primary); color:#fff; }
.btn-outline { background:#fff; color:var(--primary); border:1.5px solid var(--primary); }
.btn-block { width:100%; display:block; text-align:center; }
.btn-sm { padding:6px 14px; font-size:12px; }
.btn-danger { background:var(--danger); color:#fff; }
.btn-success { background: var(--success); color:#fff; }
.btn-warning { background: var(--warning); color:#fff; }

.tag { display:inline-block; padding:2px 8px; border-radius:4px; font-size:11px; font-weight:600; }
.tag-blue { background:#dbeafe; color:#2563eb; }
.tag-green { background:#d1fae5; color:#059669; }
.tag-orange { background:#fef3c7; color:#d97706; }
.tag-red { background:#fee2e2; color:#dc2626; }
.tag-purple { background:#ede9fe; color:#7c3aed; }

.input { width:100%; padding:10px 14px; border:1.5px solid var(--border); border-radius:8px; font-size:14px; outline:none; font-family:inherit; background:#fff; }
.input:focus { border-color:var(--primary); }
.textarea { min-height:80px; resize:vertical; }

.flex-row { display:flex; gap:10px; align-items:center; }
.flex-between { display:flex; justify-content:space-between; align-items:center; }
.mt-12 { margin-top:12px; }
.mb-12 { margin-bottom:12px; }
.mb-8 { margin-bottom:8px; }
.text-center { text-align:center; }
.text-muted { color:var(--text2); font-size:12px; }

.alert { padding:10px 16px; border-radius:8px; font-size:13px; margin-bottom:12px; }
.alert-warning { background:#fef3c7; color:#92400e; }
.alert-info { background:#dbeafe; color:#1e40af; }
.alert-danger { background:#fee2e2; color:#991b1b; }
.alert-success { background:#d1fae5; color:#065f46; }