/* Reset & base */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;background:#f0f2f5;color:#333;min-height:100vh}

/* Layout */
.app{min-height:100vh}

/* Auth pages */
.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}
.auth-card{background:#fff;border-radius:12px;box-shadow:0 2px 12px rgba(0,0,0,.08);padding:40px;width:100%;max-width:400px}
.auth-card h1{font-size:24px;margin-bottom:8px;text-align:center}
.auth-card .subtitle{color:#999;font-size:14px;text-align:center;margin-bottom:32px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;color:#666;margin-bottom:6px}
.form-group input{width:100%;padding:10px 12px;border:1px solid #dcdfe6;border-radius:6px;font-size:14px;transition:border .2s}
.form-group input:focus{outline:none;border-color:#409eff;box-shadow:0 0 0 2px rgba(64,158,255,.2)}

.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border:none;border-radius:6px;font-size:14px;cursor:pointer;transition:all .2s;text-decoration:none}
.btn-primary{background:#409eff;color:#fff;width:100%}
.btn-primary:hover{background:#337ecc}
.btn-primary:disabled{background:#a0cfff;cursor:not-allowed}

.auth-link{text-align:center;margin-top:16px;font-size:14px;color:#999}
.auth-link a{color:#409eff;text-decoration:none}

.error-msg{background:#fef0f0;color:#f56c6c;padding:8px 12px;border-radius:6px;font-size:13px;margin-bottom:16px;display:none}

/* Nav */
.navbar{display:flex;align-items:center;padding:0 24px;height:56px;background:#fff;border-bottom:1px solid #e4e7ed;box-shadow:0 1px 4px rgba(0,0,0,.04)}
.navbar-brand{font-weight:700;font-size:16px;color:#333;text-decoration:none}
.navbar-nav{display:flex;align-items:center;gap:4px;margin-left:32px}
.nav-item{padding:6px 14px;border-radius:6px;font-size:14px;color:#666;text-decoration:none;transition:all .2s}
.nav-item:hover,.nav-item.active{background:#ecf5ff;color:#409eff}
.navbar-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.navbar-credits{font-size:13px;color:#e6a23c;background:#fdf6ec;padding:4px 10px;border-radius:12px;white-space:nowrap}
.navbar-user{font-size:14px;color:#666}

/* Main content */
.main{padding:24px;max-width:1200px;margin:0 auto}
.main-wide{max-width:1400px}

/* Card */
.card{background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.06);padding:20px;margin-bottom:16px}
.card-title{font-size:16px;font-weight:600;margin-bottom:16px}

/* Generate page layout */
.gen-layout{display:flex;gap:20px;align-items:flex-start}
.gen-side{width:380px;flex-shrink:0}
.gen-main{flex:1;min-width:0}
@media(max-width:900px){.gen-layout{flex-direction:column}.gen-side{width:100%}}

/* Form */
select,input[type="text"],textarea{width:100%;padding:8px 12px;border:1px solid #dcdfe6;border-radius:6px;font-size:14px}
select:focus,input:focus,textarea:focus{outline:none;border-color:#409eff}
textarea{resize:vertical;min-height:100px;font-family:inherit}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}

/* Tag-style options */
.tag-group{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.tag{padding:4px 12px;border:1px solid #dcdfe6;border-radius:14px;font-size:13px;cursor:pointer;transition:all .2s;background:#fff}
.tag:hover{border-color:#409eff;color:#409eff}
.tag.active{background:#409eff;color:#fff;border-color:#409eff}

/* Results */
.result-grid{display:grid;gap:16px;padding:16px}
.result-grid-single{grid-template-columns:1fr}
.result-grid-multi{grid-template-columns:repeat(auto-fill,minmax(400px,1fr))}
.result-card{border:1px solid #e4e7ed;border-radius:8px;overflow:hidden;background:#fff;position:relative}
.result-card .img-wrap{background:#f5f5f5;position:relative}
.result-card .img-wrap .spinner-sm{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:24px;height:24px;border:3px solid #e4e7ed;border-top-color:#409eff;border-radius:50%;animation:spin .8s linear infinite}
.result-card .img-wrap img{width:100%;height:auto;display:block;opacity:0;transition:opacity .4s ease}
.result-card .img-wrap img.loaded{opacity:1}
.result-card .info{padding:10px 12px;font-size:13px;color:#666;display:flex;align-items:center;justify-content:space-between}
.result-card .info .dl-btn{padding:4px 10px;border:1px solid #dcdfe6;border-radius:6px;font-size:12px;color:#409eff;text-decoration:none;cursor:pointer;transition:all .15s;background:#fff}
.result-card .info .dl-btn:hover{background:#ecf5ff;border-color:#409eff}
.placeholder-result{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;color:#c0c4cc;font-size:15px;background:#fafafa;border-radius:8px;border:2px dashed #e4e7ed}

/* Table */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid #ebeef5}
th{background:#fafafa;font-weight:600;color:#666;font-size:13px}
tr:hover{background:#f5f7fa}

/* Pagination */
.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:16px}
.pagination a,.pagination span{padding:6px 12px;border:1px solid #dcdfe6;border-radius:4px;font-size:13px;text-decoration:none;color:#333}
.pagination a:hover{background:#ecf5ff;color:#409eff;border-color:#409eff}

/* Badge */
.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px}
.badge-success{background:#f0f9eb;color:#67c23a}
.badge-danger{background:#fef0f0;color:#f56c6c}
.badge-warning{background:#fdf6ec;color:#e6a23c}
.badge-info{background:#f4f4f5;color:#909399}

/* Admin stats */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:20px}
.stat-card{background:#fff;border-radius:8px;padding:20px;text-align:center;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.stat-card .value{font-size:28px;font-weight:700}
.stat-card .label{font-size:13px;color:#999;margin-top:4px}

/* Bar chart (simple) */
.bar-chart{display:flex;align-items:flex-end;gap:8px;height:100px;padding:12px 0}
.bar{flex:1;background:#409eff;border-radius:4px 4px 0 0;min-height:4px;transition:height .3s}

/* Notification (flash) */
.flash{position:fixed;top:16px;right:16px;z-index:9999;padding:12px 20px;border-radius:8px;font-size:14px;box-shadow:0 4px 12px rgba(0,0,0,.15);display:none}
.flash-success{background:#f0f9eb;color:#67c23a;border:1px solid #e1f3d8}
.flash-error{background:#fef0f0;color:#f56c6c;border:1px solid #fde2e2}