/* ===================================================
   andwitLua — 公共样式（所有页面共用）
   =================================================== */

/* ── 变量 ── */
:root {
  --bg:           #f0f2f5;
  --card:         #ffffff;
  --border:       #e2e8f0;
  --primary:      #3b82f6;
  --primary-dark: #2563eb;
  --success:      #22c55e;
  --danger:       #ef4444;
  --warn:         #f59e0b;
  --text:         #1e293b;
  --text-muted:   #64748b;
  --radius:       10px;
  --shadow:       0 1px 4px rgba(0,0,0,.08);
  --radius-sm:     8px;
  --radius-xs:     6px;
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:14px}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);
  height:100dvh;
  display:flex;flex-direction:column;
  overflow:hidden;
  -webkit-text-size-adjust:100%;
  -webkit-font-smoothing:antialiased;
}

/* ── Header ── */
header{
  flex-shrink:0;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;
  background:var(--card);
  border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:10;
}
header h1{font-size:17px;font-weight:700;color:var(--text)}
.header-right{font-size:12px;color:var(--text-muted)}

/* ── Tab Bar ── */
.tabs{
  display:flex;
  padding:0 16px;
  background:var(--card);
  border-bottom:1px solid var(--border);
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  position:sticky;top:52px;z-index:9;
  flex-shrink:0;
}
.tab{
  flex:1;min-width:80px;
  padding:12px 8px;
  border:none;background:transparent;
  cursor:pointer;font-size:13px;color:var(--text-muted);
  transition:all .2s;white-space:nowrap;text-align:center;font-weight:500;
  border-bottom:2px solid transparent;
  text-decoration:none;display:block;
}
.tab:hover{color:var(--primary)}
.tab-active{color:var(--primary);font-weight:700;background:#eff6ff}

/* ── Content ── */
.scroll{
  flex:1;overflow-y:auto;overflow-x:hidden;
  -webkit-overflow-scrolling:touch;
  padding:16px 20px;
}
.page{max-width:1100px;margin:0 auto}

/* ── Card ── */
.card{
  background:var(--card);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:20px;margin-bottom:16px;
}
.card-title{
  font-size:14px;font-weight:600;color:var(--text);
  margin-bottom:14px;padding-bottom:10px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:6px;
}

/* ── Info Grid ── */
.info-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:10px;
}
.info-item{background:#f8fafc;border-radius:var(--radius-sm);padding:10px 12px}
.info-item .label{font-size:11px;color:var(--text-muted);text-transform:uppercase;margin-bottom:4px}
.info-item .value{font-size:15px;font-weight:700;color:var(--text)}
.value.green{color:var(--success)}
.value.blue{color:var(--primary)}
.value.red{color:var(--danger)}
.value.amber{color:var(--warn)}

/* ── Progress Bar ── */
.bar-track{height:6px;background:#e5e7eb;border-radius:3px;overflow:hidden;margin-top:5px}
.bar-fill{
  height:100%;border-radius:3px;
  transition:width .5s ease;min-width:0;
}
.bar-fill.bar-safe,  .bar-fill.green  {background:var(--success)}
.bar-fill.bar-warn,  .bar-fill.amber  {background:var(--warn)}
.bar-fill.bar-danger,.bar-fill.red     {background:var(--danger)}

/* ── Net Badge ── */
.net-badge{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;padding:4px 12px;border-radius:20px;font-weight:600;
}
.net-badge.up{background:#dcfce7;color:#166534}
.net-badge.down{background:#fee2e2;color:#991b1b}

/* ── Form ── */
.form-item{margin-bottom:12px}
.form-item label{display:block;font-size:12px;color:var(--text-muted);margin-bottom:5px}
.form-item input,.form-item select,.form-item textarea{
  width:100%;padding:8px 12px;
  border:1px solid var(--border);border-radius:var(--radius-sm);
  font-size:13px;background:#fff;color:var(--text);
  transition:border-color .2s;
}
.form-item input:focus,.form-item select:focus,.form-item textarea:focus{
  border-color:var(--primary);outline:none;
}
.form-item input:read-only{background:#f8fafc;color:var(--text-muted)}
.form-hint{font-size:11px;color:var(--text-muted);margin-top:4px}

/* ── Buttons ── */
.btn{
  display:inline-flex;align-items:center;gap:5px;
  padding:8px 16px;border:none;border-radius:var(--radius-sm);
  cursor:pointer;font-size:13px;font-weight:500;transition:.15s;
  text-decoration:none;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-success{background:var(--success);color:#fff}
.btn-success:hover{background:#16a34a}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#dc2626}
.btn-warn{background:var(--warn);color:#fff}
.btn-warn:hover{background:#d97706}
.btn-ghost{background:#f1f5f9;color:var(--text)}
.btn-ghost:hover{background:#e2e8f0}
.btn-sm{padding:5px 10px;font-size:12px}
.btn-block{width:100%;justify-content:center}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ── Toggle ── */
.toggle-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 0;border-bottom:1px solid var(--border);
}
.toggle-row:last-child{border-bottom:none}
.toggle-label{font-size:13px;font-weight:500}
.toggle-desc{font-size:11px;color:var(--text-muted);margin-top:2px}
.toggle-sw{
  width:44px;height:24px;appearance:none;background:#cbd5e1;
  border-radius:12px;position:relative;cursor:pointer;transition:.2s;flex-shrink:0;
}
.toggle-sw:checked{background:var(--primary)}
.toggle-sw::after{
  content:'';position:absolute;width:18px;height:18px;
  background:#fff;border-radius:50%;top:3px;left:3px;
  transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.2);
}
.toggle-sw:checked::after{left:23px}

/* ── OTA Zone ── */
.ota-zone{
  border:2px dashed var(--border);border-radius:12px;
  padding:28px;text-align:center;cursor:pointer;transition:all .2s;
}
.ota-zone:hover{border-color:var(--primary);background:#f8faff}
.ota-zone.drag-over{border-color:var(--primary);background:#eff6ff}
.ota-icon{font-size:32px;margin-bottom:8px}
.ota-zone-title{font-size:14px;font-weight:600;margin-bottom:4px}
.ota-zone-hint{font-size:12px;color:var(--text-muted)}
.ota-file-info{
  background:#f0fdf4;border:1px solid #bbf7d0;
  border-radius:10px;padding:12px;margin-top:10px;
}
.ota-progress-wrap{background:#fafafa;border-radius:10px;padding:14px;margin-top:10px}
.ota-stage{font-size:13px;font-weight:600;color:var(--text);margin-bottom:10px;text-align:center}
.ota-track{height:14px;background:#e5e7eb;border-radius:7px;overflow:hidden;margin-bottom:6px}
.ota-fill{height:100%;width:0%;border-radius:7px;background:linear-gradient(90deg,var(--primary),#60a5fa);transition:width .3s}
.ota-nums{display:flex;justify-content:space-between;font-size:12px;color:var(--text-muted);margin-bottom:10px}
.ota-steps{display:flex;gap:4px}
.ota-step{flex:1;text-align:center;font-size:11px;padding:3px;border-radius:4px;background:#f3f4f6;color:#9ca3af}
.ota-step.active{background:#dbeafe;color:#1d4ed8;font-weight:600}
.ota-step.done{background:#dcfce7;color:#15803d}
.ota-result{margin-top:10px;padding:12px;border-radius:10px;font-size:13px;font-weight:600;text-align:center}
.ota-result.ok{background:#dcfce7;color:#166534}
.ota-result.err{background:#fee2e2;color:#991b1b}

/* ── Danger Zone ── */
.danger-zone{background:#fff5f5;border:1px solid #fecaca;border-radius:var(--radius);padding:14px}
.danger-zone .title{font-weight:700;color:var(--danger);margin-bottom:6px}
.danger-zone p{font-size:12px;color:#991b1b;margin-bottom:10px}

/* ── Footer ── */
footer{
  flex-shrink:0;text-align:center;
  padding:12px;
  border-top:1px solid var(--border);
  background:var(--card);
  font-size:12px;color:var(--text-muted);
}

/* ── Toast ── */
#toast{
  position:fixed;bottom:70px;right:16px;
  padding:10px 18px;background:#1e293b;color:#fff;
  border-radius:8px;opacity:0;
  transition:opacity .25s;pointer-events:none;font-size:13px;
  z-index:100;
}
#toast.show{opacity:1}
#toast.ok{background:var(--success)}
#toast.err{background:var(--danger)}

/* ── Loader ── */
.loader{
  display:inline-block;width:18px;height:18px;
  border:2px solid var(--border);border-top-color:var(--primary);
  border-radius:50%;animation:spin .8s linear infinite;vertical-align:middle;margin-right:6px;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── Utils ── */
.text-muted{color:var(--text-muted)}
.mt-8{margin-top:8px}
.mt-12{margin-top:12px}
.mb-8{margin-bottom:8px}
.mb-12{margin-bottom:12px}
.gap-8{gap:8px}
.flex{display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.flex-between{display:flex;justify-content:space-between;align-items:center}
.divider{border:none;border-top:1px solid var(--border);margin:16px 0}

/* WiFi ɨ���б� */
.wifi-list-header{font-size:12px;color:var(--text-muted);margin-bottom:8px;padding:0 2px}
.wifi-list{display:block}
.wifi-item{display:flex;align-items:center;gap:10px;padding:11px 14px;background:var(--card-bg);border:1px solid var(--border);border-radius:8px;margin-bottom:6px;cursor:pointer;transition:background .15s,border-color .15s}
.wifi-item:hover{background:#f0f7ff;border-color:#a0c4ff}
.wifi-item:active{background:#e3f0ff}
.wifi-item-body{flex:1;min-width:0}
.wifi-item-ssid{font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.wifi-item-meta{font-size:12px;color:var(--text-muted);margin-top:2px}
.wifi-item-rssi{font-size:12px;white-space:nowrap}

/* ������ť */
.btn-outline{background:transparent;border:1.5px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:rgba(26,115,232,.07)}

/* ������Ϣ��Ƭ */
.conn-info{border-radius:8px}

/* �������� */
.modal{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;
  background:rgba(0,0,0,.45);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.modal-content{background:#fff;border-radius:16px;width:100%;max-width:360px;margin:0 16px;
  box-shadow:0 24px 60px rgba(0,0,0,.2);overflow:hidden}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 20px 0;
  font-size:15px}
.modal-close{background:none;border:none;font-size:22px;line-height:1;color:#999;cursor:pointer;padding:0 0 0 12px}
.modal-body{padding:14px 20px 0}
.modal-footer{padding:14px 20px 18px}