@charset "UTF-8";

/* ============ 自定义样式（Tailwind CDN 无法表达的）============ */

/* ===== Bootstrap 暗色覆盖 — 确保所有文字在暗色背景下可见 ===== */
.text-muted { color: #9ca3af !important; }
.text-secondary { color: #9ca3af !important; }
.text-dark { color: #e2e8f0 !important; }
.text-body { color: #e2e8f0 !important; }
.text-black { color: #e2e8f0 !important; }
.text-primary { color: #60a5fa !important; }
.text-success { color: #34d399 !important; }
.text-warning { color: #fbbf24 !important; }
.text-danger { color: #f87171 !important; }
.text-info { color: #22d3ee !important; }
.text-white { color: #ffffff !important; }
.text-light { color: #d1d5db !important; }

/* Bootstrap 背景色覆盖 */
.bg-light { background-color: #1a1f2e !important; }
.bg-white { background-color: #111827 !important; }
.bg-dark { background-color: #0a0e17 !important; }
.bg-body { background-color: #0a0e17 !important; }
.bg-secondary { background-color: #374151 !important; }

/* Bootstrap 边框色覆盖 */
.border { border-color: #1e293b !important; }
.border-top { border-top-color: #1e293b !important; }
.border-bottom { border-bottom-color: #1e293b !important; }
.border-start { border-left-color: #1e293b !important; }
.border-end { border-right-color: #1e293b !important; }

/* 表格暗色 */
.table { color: #e2e8f0; }
.table-striped > tbody > tr:nth-of-type(odd) { background-color: rgba(255,255,255,0.02); }
.table-hover > tbody > tr:hover { background-color: rgba(255,255,255,0.05); }
.table thead th { border-bottom-color: #1e293b; color: #9ca3af; }
.table td, .table th { border-top-color: #1e293b; }

/* 列表组 */
.list-group-item { background-color: #111827; color: #e2e8f0; border-color: #1e293b; }
.list-group-item-action:hover { background-color: #1a1f2e; }

/* 下拉菜单 */
.dropdown-menu { background-color: #111827; border-color: #1e293b; }
.dropdown-item { color: #e2e8f0; }
.dropdown-item:hover { background-color: #1a1f2e; color: #fff; }
.dropdown-divider { border-top-color: #1e293b; }

/* 分页 */
.page-link { background-color: #111827; color: #60a5fa; border-color: #1e293b; }
.page-link:hover { background-color: #1a1f2e; color: #93c5fd; }
.page-item.active .page-link { background-color: #10b981; border-color: #10b981; }
.page-item.disabled .page-link { background-color: #0d1117; color: #4b5563; }

/* Alert 组件暗色化 */
.alert { color: #e2e8f0; border: none; }
.alert-success { background-color: #064e3b; color: #6ee7b7; }
.alert-danger { background-color: #7f1d1d; color: #fca5a5; }
.alert-warning { background-color: #78350f; color: #fde68a; }
.alert-info { background-color: #0c4a6e; color: #7dd3fc; }
.alert-primary { background-color: #1e3a5f; color: #93c5fd; }

/* Badge */
.badge { color: #e2e8f0; }
.badge.bg-secondary { background-color: #374151 !important; }

/* Card (Bootstrap) */
.card { background-color: #111827; border-color: #1e293b; }
.card-header { background-color: #1a1f2e; border-bottom-color: #1e293b; }
.card-footer { background-color: #1a1f2e; border-top-color: #1e293b; }
.card-body { color: #e2e8f0; }

/* Modal (Bootstrap) */
.modal-content { background-color: #111827; border-color: #1e293b; }
.modal-header { border-bottom-color: #1e293b; }
.modal-footer { border-top-color: #1e293b; }
.modal-title { color: #e2e8f0; }

/* Nav tabs */
.nav-tabs { border-bottom-color: #1e293b; }
.nav-tabs .nav-link { color: #9ca3af; }
.nav-tabs .nav-link:hover { border-color: #1e293b; color: #e2e8f0; }
.nav-tabs .nav-link.active { color: #34d399; background-color: #111827; border-color: #1e293b #1e293b #111827; }

/* 进度条 */
.progress { background-color: #1e293b; }
.progress-bar { background-color: #10b981; }

/* 代码/pre */
code { color: #e5e7eb; }
pre { color: #e5e7eb; }

/* Form 标签和帮助文本 */
.form-text { color: #9ca3af !important; }
.form-label { color: #d1d5db; }
.form-check-label { color: #d1d5db; }
.form-select { background-color: #111827; color: #e2e7eb; border-color: #374151; }
.form-control { background-color: #111827; color: #e2e7eb; border-color: #374151; }
.form-control:focus { background-color: #111827; color: #e2e7eb; border-color: #10b981; box-shadow: 0 0 0 0.2rem rgba(16,185,129,0.15); }
.form-control::placeholder { color: #6b7280; }
.form-control:disabled, .form-select:disabled { background-color: #1a1f2e; color: #6b7280; }

/* Close 按钮在暗色背景 */
.btn-close { filter: invert(1) grayscale(100%) brightness(200%); }
.btn-close-white { filter: invert(1) grayscale(100%) brightness(200%); }

/* 小标签和帮助文本 */
small, .small { color: #9ca3af; }

/* HR 分割线 */
hr { border-top-color: #1e293b; opacity: 1; }

/* Table responsive */
.table-responsive { border: none; }

/* 覆盖 agent 未处理干净的浅色元素 */
div[style*="background: #dee2e6"] { background: #374151 !important; }
div[style*="background: #ccc"] { background: #374151 !important; }
div[style*="border-left: 1px solid #ccc"] { border-left-color: #374151 !important; }
div[style*="border-right: 1px solid #ccc"] { border-right-color: #374151 !important; }

/* 暗色滚动条 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #334155; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #475569; }

/* 全局 input/select/textarea 基础样式 */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="url"],
select,
textarea {
  background-color: #111827;
  border: 1px solid #374151;
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
  color: #e5e7eb;
  transition: all 0.2s ease;
}
input:focus, select:focus, textarea:focus {
  border-color: #10b981;
  outline: none;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Neon 发光文字 */
.text-shadow-neon {
  text-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

/* 网格背景纹理 */
.grid-pattern {
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* 等宽字体 */
.font-mono {
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
}

/* 脉冲动画 */
@keyframes pulseNeon {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}
.animate-pulse-neon {
  animation: pulseNeon 3s ease-in-out infinite;
}

/* 滑入动画 */
@keyframes slideInRight {
  0% { transform: translateX(100%); opacity: 0; }
  100% { transform: translateX(0); opacity: 1; }
}
.animate-slide-in-right {
  animation: slideInRight 0.3s ease-out;
}

/* 淡入动画 */
@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}
.animate-fade-in {
  animation: fadeIn 0.2s ease-out;
}

/* 旋转动画 */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.animate-spin {
  animation: spin 1s linear infinite;
}

/* ============ 组件类 ============ */

/* 主操作按钮 */
.btn-primary {
  background-color: #059669;
  color: white;
  font-weight: 500;
  border-radius: 0.5rem;
  padding: 0.5rem 1rem;
  transition: all 0.15s ease;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.btn-primary:hover {
  background-color: #10b981;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.3);
}
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 危险操作按钮 */
.btn-danger {
  border: 1px solid rgba(239, 68, 68, 0.5);
  color: #f87171;
  background: transparent;
  border-radius: 0.5rem;
  padding: 0.5rem 1rem;
  transition: all 0.15s ease;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.btn-danger:hover {
  background-color: rgba(239, 68, 68, 0.1);
}

/* 次要按钮 */
.btn-secondary {
  border: 1px solid #4b5563;
  color: #d1d5db;
  background: transparent;
  border-radius: 0.5rem;
  padding: 0.5rem 1rem;
  transition: all 0.15s ease;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}
.btn-secondary:hover {
  background-color: #374151;
}

/* 暗色卡片 */
.card-dark {
  background-color: #111827;
  border: 1px solid rgba(55, 65, 81, 0.5);
  border-radius: 0.75rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  transition: all 0.2s ease;
}
.card-dark:hover {
  border-color: rgba(16, 185, 129, 0.3);
}

/* ══════════════════════════════════════════════════════════════════
   Toast 通知系统 — 暗色主题统一样式
   ══════════════════════════════════════════════════════════════════ */

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateX(120%); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes toastSlideOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(120%); }
}
@keyframes toastProgress {
  from { width: 100%; }
  to   { width: 0%; }
}

.toast-container {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  pointer-events: none;
}

.toast-item {
  position: relative;
  min-width: 320px;
  max-width: 420px;
  background: linear-gradient(135deg, #111827 0%, #0f172a 100%);
  border: 1px solid #1e293b;
  border-radius: 0.625rem;
  padding: 0.875rem 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.03) inset;
  animation: toastSlideIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
  overflow: hidden;
}
.toast-item.toast-removing {
  animation: toastSlideOut 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* 左侧发光 accent 条 */
.toast-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  border-radius: 3px 0 0 3px;
}
.toast-item.toast-success::before { background: linear-gradient(180deg, #10b981, #34d399); box-shadow: 0 0 8px rgba(16,185,129,0.5); }
.toast-item.toast-error::before,
.toast-item.toast-danger::before  { background: linear-gradient(180deg, #ef4444, #f87171); box-shadow: 0 0 8px rgba(239,68,68,0.5); }
.toast-item.toast-warning::before { background: linear-gradient(180deg, #f59e0b, #fbbf24); box-shadow: 0 0 8px rgba(245,158,11,0.5); }
.toast-item.toast-info::before    { background: linear-gradient(180deg, #3b82f6, #60a5fa); box-shadow: 0 0 8px rgba(59,130,246,0.5); }

/* 图标 */
.toast-item .toast-icon {
  font-size: 1.125rem;
  flex-shrink: 0;
  margin-top: 1px;
}
.toast-item.toast-success .toast-icon { color: #34d399; }
.toast-item.toast-error .toast-icon,
.toast-item.toast-danger .toast-icon   { color: #f87171; }
.toast-item.toast-warning .toast-icon { color: #fbbf24; }
.toast-item.toast-info .toast-icon    { color: #60a5fa; }

/* 内容区 */
.toast-item .toast-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}
.toast-item .toast-message {
  font-size: 0.8125rem;
  color: #e5e7eb;
  line-height: 1.4;
  word-break: break-word;
}

/* 进度条 */
.toast-item .toast-progress {
  position: absolute;
  bottom: 0; left: 0;
  height: 2px;
  border-radius: 0 0 0 0.5rem;
  animation: toastProgress 4s linear forwards;
}
.toast-item.toast-success .toast-progress { background: #10b981; }
.toast-item.toast-error .toast-progress,
.toast-item.toast-danger .toast-progress   { background: #ef4444; }
.toast-item.toast-warning .toast-progress { background: #f59e0b; }
.toast-item.toast-info .toast-progress    { background: #3b82f6; }

/* 关闭按钮 */
.toast-item .toast-close {
  flex-shrink: 0;
  background: none;
  border: none;
  color: #6b7280;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  font-size: 0.875rem;
  line-height: 1;
  transition: color 0.15s, background 0.15s;
  margin-top: 1px;
}
.toast-item .toast-close:hover {
  color: #f3f4f6;
  background: rgba(255,255,255,0.06);
}

/* 暂停进度条动画（hover 时） */
.toast-item:hover .toast-progress {
  animation-play-state: paused;
}

/* ══════════════════════════════════════════════════════════════════
   确认对话框 — 暗色主题统一样式
   ══════════════════════════════════════════════════════════════════ */
.gstack-confirm-overlay {
  position: fixed;
  inset: 0;
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  animation: confirmFadeIn 0.15s ease-out;
}
@keyframes confirmFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.gstack-confirm-dialog {
  background: linear-gradient(135deg, #111827 0%, #0f172a 100%);
  border: 1px solid #1e293b;
  border-radius: 0.75rem;
  box-shadow: 0 25px 30px -10px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.04) inset;
  padding: 1.5rem;
  max-width: 420px;
  width: calc(100% - 2rem);
  animation: confirmSlideUp 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes confirmSlideUp {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.gstack-confirm-dialog .gstack-confirm-icon {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
}
.gstack-confirm-dialog .gstack-confirm-icon.danger {
  background: rgba(239,68,68,0.12);
  color: #f87171;
}
.gstack-confirm-dialog .gstack-confirm-icon.warning {
  background: rgba(245,158,11,0.12);
  color: #fbbf24;
}
.gstack-confirm-dialog .gstack-confirm-icon.info {
  background: rgba(59,130,246,0.12);
  color: #60a5fa;
}

.gstack-confirm-dialog .gstack-confirm-title {
  font-size: 1rem;
  font-weight: 600;
  color: #f1f5f9;
  margin-bottom: 0.375rem;
}
.gstack-confirm-dialog .gstack-confirm-message {
  font-size: 0.8125rem;
  color: #9ca3af;
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.gstack-confirm-dialog .gstack-confirm-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.625rem;
}
.gstack-confirm-btn {
  padding: 0.5rem 1.25rem;
  border-radius: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
}
.gstack-confirm-btn.cancel {
  background: #1e293b;
  border-color: #334155;
  color: #cbd5e1;
}
.gstack-confirm-btn.cancel:hover {
  background: #334155;
}
.gstack-confirm-btn.confirm {
  color: #fff;
}
.gstack-confirm-btn.confirm.danger {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  box-shadow: 0 2px 8px rgba(220,38,38,0.3);
}
.gstack-confirm-btn.confirm.danger:hover {
  background: linear-gradient(135deg, #ef4444, #dc2626);
}
.gstack-confirm-btn.confirm.primary {
  background: linear-gradient(135deg, #059669, #10b981);
  box-shadow: 0 2px 8px rgba(16,185,129,0.3);
}
.gstack-confirm-btn.confirm.primary:hover {
  background: linear-gradient(135deg, #10b981, #34d399);
}

/* prompt 输入框 */
.gstack-prompt-input {
  width: 100%;
  padding: 0.625rem 0.75rem;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 0.5rem;
  color: #e2e8f0;
  font-size: 0.875rem;
  transition: border-color 0.15s;
  outline: none;
  box-sizing: border-box;
}
.gstack-prompt-input:focus {
  border-color: #10b981;
  box-shadow: 0 0 0 2px rgba(16,185,129,0.15);
}
.gstack-prompt-input::placeholder {
  color: #64748b;
}

/* Tab 按钮 */
.tab-btn {
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: #9ca3af;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
  background: none;
  cursor: pointer;
  white-space: nowrap;
}
.tab-btn:hover {
  color: white;
  border-bottom-color: #4b5563;
}
.tab-btn.active {
  color: #34d399;
  border-bottom-color: #10b981;
  text-shadow: 0 0 8px rgba(16, 185, 129, 0.3);
}

/* 侧边栏导航项 */
.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  border-radius: 0.5rem;
  color: #9ca3af;
  transition: all 0.2s ease;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
}
.nav-item:hover {
  color: white;
  background-color: rgba(255, 255, 255, 0.05);
}
.nav-item.active {
  color: #34d399;
  background-color: rgba(16, 185, 129, 0.1);
  border-left: 2px solid #10b981;
}

/* 状态徽章 */
.status-badge {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-weight: 600;
}
.status-running { background-color: #064e3b; color: #6ee7b7; }
.status-stopped { background-color: #7f1d1d; color: #fca5a5; }
.status-idle { background-color: #1f2937; color: #9ca3af; }

/* 模态框（自定义，不依赖 Bootstrap）*/
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(2px);
}
.modal-panel {
  background-color: #111827;
  border: 1px solid #374151;
  border-top: 2px solid #10b981;
  border-radius: 1rem;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
  width: 100%;
  max-width: 32rem;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #1f2937;
}
.modal-body {
  padding: 1rem 1.5rem;
}
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid #1f2937;
}

/* ===== 用户表格粘性列 ===== */
.user-table-wrapper {
  overflow-x: auto;
  max-width: 100%;
}
.user-table {
  width: max-content;
  min-width: 100%;
  border-collapse: collapse;
  table-layout: auto;
}
.user-table th,
.user-table td {
  white-space: nowrap;
  padding: 8px 12px;
  border-bottom: 1px solid #1f2937;
}
.user-table .sticky-column {
  position: sticky;
  right: 0;
  background: #111827;
  z-index: 1;
  box-shadow: -2px 0 8px rgba(0,0,0,0.3);
}
.user-table thead .sticky-column {
  z-index: 2;
}

/* ===== 用户表格信息栏 & 空状态 ===== */
.table-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px;
  margin-bottom: 8px;
  border-radius: 8px;
  background: rgba(16, 185, 129, 0.06);
  border: 1px solid rgba(16, 185, 129, 0.15);
  font-size: 13px;
  color: #9ca3af;
}
.table-info strong {
  color: #e5e7eb;
}
.table-empty {
  text-align: center;
  padding: 48px 16px;
  color: #6b7280;
}
.table-empty i {
  color: #374151;
}

/* ===== 用户表格操作按钮 ===== */
.action-btn-group {
  display: flex;
  gap: 6px;
  white-space: nowrap;
}
.btn-test-send {
  padding: 4px 12px;
  font-size: 12px;
  border-radius: 6px;
  border: 1px solid rgba(52, 211, 153, 0.3);
  background: rgba(52, 211, 153, 0.1);
  color: #34d399;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-test-send:hover {
  background: rgba(52, 211, 153, 0.2);
  border-color: rgba(52, 211, 153, 0.5);
}
.btn-delete-user {
  padding: 4px 12px;
  font-size: 12px;
  border-radius: 6px;
  border: 1px solid rgba(248, 113, 113, 0.3);
  background: rgba(248, 113, 113, 0.1);
  color: #f87171;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-delete-user:hover {
  background: rgba(248, 113, 113, 0.2);
  border-color: rgba(248, 113, 113, 0.5);
}
.btn-test-send:disabled,
.btn-delete-user:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== 用户表格表头 ===== */
.user-table thead th {
  background: #0f1723;
  color: #9ca3af;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: sticky;
  top: 0;
  z-index: 1;
  border-bottom: 2px solid #1f2937;
}
.user-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}
.user-table tbody td {
  color: #d1d5db;
  font-size: 13px;
}

/* ===== 发送页面日志流 ===== */
.log-entry {
  padding: 3px 8px;
  border-bottom: 1px solid rgba(31, 41, 55, 0.5);
  color: #9ca3af;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.log-entry:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* ===== 发送页面 SMTP 信息框 ===== */
#smtpInfoBox span {
  font-family: 'JetBrains Mono', 'Cascadia Code', Consolas, monospace;
}

/* ===== 状态指示灯 ===== */
.status-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-idle    { background: #6b7280; }
.status-running { background: #34d399; animation: pulse-neon 1.5s ease-in-out infinite; }
.status-paused  { background: #fbbf24; }
.status-stopped { background: #ef4444; }
.status-completed { background: #60a5fa; }
.status-error   { background: #ef4444; animation: pulse-neon 0.5s ease-in-out infinite; }

@keyframes pulse-neon {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.4); }
  50%      { box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
}