/* 输电线路巡视管理平台 - 公共样式与工具 */

/* ===== Reset & Base ===== */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:#f3f4f6;color:#1f2937;font-size:14px;line-height:1.5}
a{color:#2563eb;text-decoration:none}
a:hover{text-decoration:underline}

/* ===== Layout ===== */
.container{max-width:1200px;margin:0 auto;padding:16px 20px}
.card{background:#fff;border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,0.08);margin-bottom:16px;overflow:hidden}
.card-body{padding:16px}

/* ===== Nav ===== */
.nav{background:#1e3a5f;color:#fff;padding:0 20px;display:flex;align-items:center;height:48px}
.nav-brand{font-size:16px;font-weight:600;margin-right:24px;white-space:nowrap}
.nav-links{display:flex;gap:16px;flex:1}
.nav-links a{color:rgba(255,255,255,0.8);font-size:13px;padding:4px 0}
.nav-links a:hover,.nav-links a.active{color:#fff;text-decoration:none;border-bottom:2px solid #fff}
.nav-user{font-size:12px;color:rgba(255,255,255,0.7)}

/* ===== Table ===== */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
th{background:#f9fafb;padding:10px 12px;text-align:left;font-weight:600;color:#6b7280;border-bottom:2px solid #e5e7eb;white-space:nowrap}
td{padding:10px 12px;border-bottom:1px solid #f3f4f6}
tr:hover td{background:#f9fafb}

/* ===== Forms ===== */
input,select,textarea{font-family:inherit;font-size:13px;padding:7px 10px;border:1px solid #d1d5db;border-radius:6px;width:100%;transition:border-color .2s}
input:focus,select:focus,textarea:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 2px rgba(37,99,235,0.1)}
textarea{resize:vertical;min-height:60px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.form-group{margin-bottom:12px}
.form-group label{display:block;font-size:12px;color:#6b7280;margin-bottom:4px;font-weight:500}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;padding:7px 16px;border:none;border-radius:6px;font-size:13px;cursor:pointer;transition:all .15s;font-weight:500}
.btn-primary{background:#2563eb;color:#fff}.btn-primary:hover{background:#1d4ed8}
.btn-success{background:#059669;color:#fff}.btn-success:hover{background:#047857}
.btn-danger{background:#dc2626;color:#fff}.btn-danger:hover{background:#b91c1c}
.btn-warning{background:#d97706;color:#fff}.btn-warning:hover{background:#b45309}
.btn-outline{background:transparent;border:1px solid #d1d5db;color:#374151}.btn-outline:hover{background:#f9fafb}
.btn-sm{padding:4px 10px;font-size:12px}
.btn:disabled{opacity:0.5;cursor:not-allowed}
.btn-group{display:flex;gap:6px;flex-wrap:wrap}

/* ===== Badge ===== */
.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:11px;font-weight:500;color:#fff}
.badge-gray{background:#9ca3af}
.badge-blue{background:#3b82f6}
.badge-yellow{background:#f59e0b}
.badge-orange{background:#f97316}
.badge-green{background:#10b981}
.badge-purple{background:#8b5cf6}
.badge-red{background:#ef4444}

/* ===== Stats ===== */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px;margin-bottom:16px}
.stat-card{background:#fff;border-radius:8px;padding:16px;text-align:center;box-shadow:0 1px 2px rgba(0,0,0,0.05)}
.stat-value{font-size:24px;font-weight:700;color:#1e3a5f}
.stat-label{font-size:11px;color:#6b7280;margin-top:4px}

/* ===== Toolbar ===== */
.toolbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:16px;padding:12px 16px;background:#fff;border-radius:8px;box-shadow:0 1px 2px rgba(0,0,0,0.05)}
.toolbar input,.toolbar select{width:auto;min-width:140px}
.toolbar .spacer{flex:1}

/* ===== Modal ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:100;display:flex;align-items:center;justify-content:center}
.modal{background:#fff;border-radius:10px;width:540px;max-width:90vw;max-height:85vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,0.2)}
.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid #e5e7eb}
.modal-header h3{font-size:16px}
.modal-close{background:none;border:none;font-size:22px;cursor:pointer;color:#9ca3af}
.modal-close:hover{color:#374151}
.modal-body{padding:20px}
.modal-footer{padding:12px 20px;border-top:1px solid #e5e7eb;display:flex;justify-content:flex-end;gap:8px}

/* ===== Side Panel ===== */
.panel-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.4);z-index:100}
.panel{position:fixed;right:0;top:0;bottom:0;width:600px;max-width:90vw;background:#fff;z-index:101;box-shadow:-4px 0 20px rgba(0,0,0,0.15);overflow-y:auto}
.panel-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid #e5e7eb;position:sticky;top:0;background:#fff;z-index:1}
.panel-body{padding:20px}

/* ===== Timeline ===== */
.timeline{padding-left:16px;border-left:2px solid #e5e7eb}
.timeline-item{position:relative;padding:8px 0 16px 16px}
.timeline-item::before{content:'';position:absolute;left:-22px;top:12px;width:10px;height:10px;border-radius:50%;background:#3b82f6;border:2px solid #fff;box-shadow:0 0 0 2px #3b82f6}
.timeline-time{font-size:11px;color:#9ca3af}
.timeline-content{font-size:13px}

/* ===== Pagination ===== */
.pagination{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;font-size:13px;color:#6b7280}

/* ===== Toast ===== */
.toast{position:fixed;top:20px;right:20px;z-index:200;padding:12px 20px;border-radius:8px;font-size:13px;color:#fff;box-shadow:0 4px 12px rgba(0,0,0,0.15);animation:slideIn .3s ease}
.toast-error{background:#dc2626}
.toast-success{background:#059669}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* ===== Tabs ===== */
.tabs{display:flex;border-bottom:2px solid #e5e7eb;margin-bottom:16px}
.tab{padding:10px 20px;cursor:pointer;font-size:14px;color:#6b7280;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .2s}
.tab:hover{color:#1e3a5f}
.tab.active{color:#2563eb;border-bottom-color:#2563eb;font-weight:600}

/* ===== Empty State ===== */
.empty{text-align:center;padding:40px 20px;color:#9ca3af}
.empty-icon{font-size:48px;margin-bottom:12px}

/* ===== Utility ===== */
.text-center{text-align:center}
.text-sm{font-size:12px}
.text-muted{color:#9ca3af}
.mt-2{margin-top:8px}
.mt-4{margin-top:16px}
.mb-4{margin-bottom:16px}
.flex{display:flex}
.gap-2{gap:8px}
.items-center{align-items:center}
.hidden{display:none}