:root {
  --bg-space: #f1f5f9;
  --glass-bg: rgba(255, 255, 255, 0.82);
  --glass-card: rgba(255, 255, 255, 0.75);
  --glass-card-hover: rgba(255, 255, 255, 0.98);
  --glass-border: rgba(226, 232, 240, 0.85);
  --glass-border-focus: rgba(99, 102, 241, 0.5);
  --glass-border-hover: rgba(203, 213, 225, 1);
  
  --primary: #4f46e5;
  --primary-glow: rgba(79, 70, 229, 0.2);
  --accent-cyan: #0284c7;
  --accent-cyan-glow: rgba(2, 132, 199, 0.2);
  --accent-emerald: #059669;
  --accent-emerald-glow: rgba(5, 150, 105, 0.2);
  --accent-amber: #d97706;
  --accent-rose: #e11d48;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;
  --text-light: #94a3b8;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-space);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 12% 15%, rgba(99, 102, 241, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 88% 18%, rgba(14, 165, 233, 0.05) 0%, transparent 35%),
    radial-gradient(circle at 50% 85%, rgba(244, 63, 94, 0.03) 0%, transparent 45%);
  background-attachment: fixed;
}

/* Glassmorphism Classes */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
}

.glass-card {
  background: var(--glass-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 22px;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 20px -3px rgba(0, 0, 0, 0.04), 0 2px 6px -1px rgba(0, 0, 0, 0.02);
}

.glass-card:hover {
  background: var(--glass-card-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -5px rgba(0, 0, 0, 0.07), 0 0 15px -3px var(--primary-glow);
}

/* Layout */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 250px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 50;
  box-shadow: 2px 0 15px rgba(0, 0, 0, 0.02);
}

.sidebar-header {
  padding: 24px 20px 20px 20px;
  border-bottom: 1px solid var(--glass-border);
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #4f46e5, #7c3aed);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
}

.brand-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-main);
}

.brand-sub {
  font-size: 11px;
  color: var(--accent-cyan);
  font-weight: 600;
  margin-top: 2px;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}

.nav-category {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-light);
  letter-spacing: 1px;
  margin: 18px 0 8px 12px;
}

.nav-category:first-child {
  margin-top: 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 9px;
  color: var(--text-muted);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 3px;
  border: 1px solid transparent;
}

.nav-link:hover {
  color: var(--text-main);
  background: rgba(241, 245, 249, 0.9);
  border-color: rgba(226, 232, 240, 0.9);
}

.nav-link.active {
  color: #4338ca;
  background: #eef2ff;
  border-color: #c7d2fe;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.12);
}

.nav-link .icon {
  font-size: 16px;
  opacity: 0.9;
}

.sidebar-footer {
  padding: 16px 18px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(248, 250, 252, 0.6);
}

.health-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald-glow);
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.2); opacity: 0.7; }
}

/* Main Content */
.main-wrapper {
  flex: 1;
  margin-left: 250px;
  min-height: 100vh;
  min-width: 0;
  max-width: calc(100vw - 250px);
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  box-sizing: border-box;
}

.topbar {
  height: 64px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  z-index: 40;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

.topbar-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.content-body {
  padding: 24px 28px;
  flex: 1;
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 9px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #4f46e5, #4338ca);
  color: #fff;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #4338ca, #3730a3);
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.35);
  transform: translateY(-1px);
}

.btn-cyan {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  color: #fff;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
}

.btn-cyan:hover {
  background: linear-gradient(135deg, #0369a1, #075985);
  transform: translateY(-1px);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.9);
  border-color: #cbd5e1;
  color: var(--text-muted);
  backdrop-filter: blur(10px);
}

.btn-glass:hover {
  background: #ffffff;
  border-color: #94a3b8;
  color: var(--text-main);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.btn-danger {
  background: #fff1f2;
  border-color: #fecdd3;
  color: #e11d48;
}

.btn-danger:hover {
  background: #ffe4e6;
  border-color: #fda4af;
  color: #be123c;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 7px;
}

/* Form inputs */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid #cbd5e1;
  border-radius: 9px;
  color: var(--text-main);
  font-size: 13.5px;
  font-family: inherit;
  transition: all 0.2s ease;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

.form-textarea {
  resize: vertical;
  min-height: 90px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 600;
}

.badge-emerald {
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
}

.badge-amber {
  background: #fffbeb;
  color: #b45309;
  border: 1px solid #fde68a;
}

.badge-rose {
  background: #fff1f2;
  color: #be123c;
  border: 1px solid #fecdd3;
}

.badge-indigo {
  background: #eef2ff;
  color: #4338ca;
  border: 1px solid #c7d2fe;
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.glass-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
}

.glass-table th {
  padding: 13px 16px;
  text-align: left;
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--glass-border);
  background: rgba(241, 245, 249, 0.85);
}

.glass-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
  color: var(--text-main);
  vertical-align: middle;
}

.glass-table tr:hover td {
  background: rgba(248, 250, 252, 0.9);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.58); /* 深灰暗化底幕，让 30% 磨砂白卡上的黑字和边框极度鲜明 */
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active,
.modal-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  width: 90%;
  max-width: 580px;
  max-height: 85vh;
  overflow-y: auto;
  background: rgba(255, 255, 255, 0.75); /* 全网全局弹窗统一 30% 透明度毛玻璃 */
  backdrop-filter: blur(36px) saturate(210%);
  -webkit-backdrop-filter: blur(36px) saturate(210%);
  border: 1.5px solid rgba(255, 255, 255, 0.85);
  border-radius: 20px;
  padding: 26px;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.3), 0 0 35px rgba(99, 102, 241, 0.16);
  transform: scale(0.95);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  color: #0f172a;
}

.modal-card.help-modal-card {
  max-width: 680px;
}

/* 弹窗内输入框全面升级：纯白实心底色 + 深灰边框 + 纯黑高反差文字，彻底告别半透明模糊与灰白混浊 */
.modal-card .form-input,
.modal-card .form-select,
.modal-card .form-control,
.modal-card textarea,
.modal-card input:not([type="checkbox"]):not([type="radio"]):not([type="button"]):not([type="submit"]),
.modal-card select {
  background: #ffffff !important;
  border: 1.5px solid #94a3b8 !important;
  color: #0f172a !important;
  font-size: 13.5px !important;
  font-weight: 500 !important;
  border-radius: 9px !important;
  padding: 10px 14px !important;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04) !important;
  transition: all 0.2s ease !important;
}

.modal-card .form-input::placeholder,
.modal-card .form-control::placeholder,
.modal-card textarea::placeholder,
.modal-card input::placeholder {
  color: #64748b !important; /* 清晰中深灰，绝不刺眼发虚 */
  font-weight: 400 !important;
}

.modal-card .form-input:focus,
.modal-card .form-select:focus,
.modal-card .form-control:focus,
.modal-card textarea:focus,
.modal-card input:not([type="checkbox"]):not([type="radio"]):not([type="button"]):not([type="submit"]):focus,
.modal-card select:focus {
  background: #ffffff !important;
  border-color: #4f46e5 !important;
  box-shadow: 0 0 0 3.5px rgba(79, 70, 229, 0.22), 0 2px 8px rgba(79, 70, 229, 0.1) !important;
  outline: none !important;
}

.modal-card .form-select option,
.modal-card select option {
  background: #ffffff;
  color: #0f172a;
  padding: 6px;
}

/* 标签加深加粗，避免灰白看不清 */
.modal-card .form-label,
.modal-card label {
  color: #0f172a !important;
  font-size: 13px !important;
  font-weight: 700 !important;
  margin-bottom: 7px;
  display: block;
}

/* 输入框下方备注说明 (form-hint) 彻底变清晰深色 */
.form-hint {
  font-size: 12px !important;
  color: #334155 !important; /* 升级为高可读性深石板色 */
  margin-top: 6px;
  line-height: 1.55;
  display: flex;
  align-items: flex-start;
  gap: 5px;
  font-weight: 500;
}

.form-hint b {
  color: #0f172a !important;
  font-weight: 700;
}

.form-hint code {
  background: rgba(79, 70, 229, 0.12) !important;
  color: #312e81 !important; /* 深靛蓝 */
  border: 1px solid rgba(79, 70, 229, 0.25) !important;
  padding: 1.5px 6px;
  border-radius: 4px;
  font-size: 11.5px;
  font-weight: 600;
}

/* 弹窗内副标题、弱化说明文本强制提亮对比度 */
.modal-card p,
.modal-card .text-dim,
.modal-card [style*="color: var(--text-dim)"],
.modal-card [style*="color:var(--text-dim)"] {
  color: #334155 !important;
  font-weight: 500;
}

.modal-card [style*="color: var(--text-muted)"],
.modal-card [style*="color:var(--text-muted)"] {
  color: #1e293b !important;
  font-weight: 600;
}

/* 强化弹窗内所有浅蓝为鲜明宝蓝/深靛蓝 */
.modal-card [style*="color: var(--accent-cyan)"],
.modal-card [style*="color:var(--accent-cyan)"],
.modal-card [style*="color: #0284c7"],
.modal-card [style*="color:#0284c7"] {
  color: #1d4ed8 !important; /* 高对比度皇家蓝 */
  font-weight: 700;
}

.modal-card [style*="color: var(--primary)"],
.modal-card [style*="color:var(--primary)"] {
  color: #4338ca !important;
  font-weight: 700;
}

/* 弹窗内标题与关闭按钮 */
.modal-card .modal-title {
  font-size: 17.5px !important;
  font-weight: 800 !important;
  color: #0f172a !important;
  letter-spacing: -0.2px;
}

.modal-card .modal-close {
  color: #475569 !important;
  font-size: 24px !important;
  font-weight: 700;
  transition: all 0.2s ease;
}

.modal-card .modal-close:hover {
  color: #0f172a !important;
  transform: scale(1.15);
}

/* 弹窗内 Banner 卡片与提示块增强 */
.modal-card div[style*="linear-gradient"] {
  background: linear-gradient(135deg, rgba(238, 242, 255, 0.98), rgba(240, 249, 255, 0.98)) !important;
  border: 1.5px solid #c7d2fe !important;
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.08);
}

/* 评论点选择卡片背景强化 */
.modal-card div[style*="background: rgba(99, 102, 241, 0.06)"],
.modal-card div[style*="background: rgba(59, 130, 246, 0.06)"] {
  background: rgba(245, 247, 255, 0.98) !important;
  border: 1.5px solid #c7d2fe !important;
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.06);
}

/* 徽章对比度增强 */
.modal-card .badge-indigo {
  background: #e0e7ff !important;
  color: #312e81 !important;
  border: 1px solid #a5b4fc !important;
  font-weight: 700 !important;
}

.modal-card .badge-emerald {
  background: #d1fae5 !important;
  color: #065f46 !important;
  border: 1px solid #6ee7b7 !important;
  font-weight: 700 !important;
}

.modal-overlay.active .modal-card,
.modal-overlay.show .modal-card {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--glass-border);
}

.modal-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
}

.modal-close:hover {
  color: var(--text-main);
}

/* Toast */
.toast-container {
  position: fixed;
  top: 24px;
  right: 28px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 12px 18px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  font-size: 13.5px;
  font-weight: 500;
  box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.12);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slide-in 0.25s ease-out;
}

.toast.success {
  border-left: 4px solid var(--accent-emerald);
}

.toast.error {
  border-left: 4px solid var(--accent-rose);
}

@keyframes slide-in {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Chat Sandbox */
.chat-sandbox {
  display: flex;
  flex-direction: column;
  height: 480px;
  background: rgba(248, 250, 252, 0.8);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  overflow: hidden;
}

.chat-messages {
  flex: 1;
  padding: 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.chat-bubble {
  max-width: 80%;
  padding: 11px 16px;
  border-radius: 14px;
  font-size: 13.5px;
  line-height: 1.5;
}

.chat-bubble.user {
  align-self: flex-end;
  background: linear-gradient(135deg, #4f46e5, #4338ca);
  color: #fff;
  border-bottom-right-radius: 4px;
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.2);
}

.chat-bubble.bot {
  align-self: flex-start;
  background: #ffffff;
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  border-bottom-left-radius: 4px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
}

.chat-input-bar {
  padding: 12px;
  background: rgba(255, 255, 255, 0.95);
  border-top: 1px solid var(--glass-border);
  display: flex;
  gap: 10px;
}

/* Glassmorphism Pagination Component */
.glass-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding: 14px 20px;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--glass-border);
}

.page-info-group {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--text-muted);
}

.page-size-selector {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--text-dim);
}

.page-size-select {
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.9);
  font-size: 12px;
  color: var(--text-main);
  cursor: pointer;
  outline: none;
  transition: all 0.2s;
}

.page-size-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

.page-btn-group {
  display: flex;
  align-items: center;
  gap: 5px;
}

.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--glass-border);
  border-radius: 7px;
  cursor: pointer;
  transition: all 0.18s ease;
  user-select: none;
}

.page-btn:hover:not(:disabled) {
  background: #ffffff;
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 2px 6px rgba(79, 70, 229, 0.15);
}

.page-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  font-weight: 600;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.page-btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  background: rgba(241, 245, 249, 0.6);
  border-color: var(--glass-border);
}

.page-ellipsis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 32px;
  color: var(--text-dim);
  font-size: 13px;
}

.page-jump-box {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--text-dim);
  margin-left: 8px;
}

.page-jump-input {
  width: 48px;
  height: 28px;
  padding: 0 4px;
  text-align: center;
  border-radius: 6px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.95);
  font-size: 12px;
  color: var(--text-main);
  outline: none;
  transition: all 0.2s;
}

.page-jump-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

/* Sub-navigation Tabs (White & Grey Glass) */
.sub-tabs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 8px;
  background: rgba(241, 245, 249, 0.7);
  padding: 6px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  margin-bottom: 20px;
  max-width: 100%;
  box-sizing: border-box;
}

.sub-tab-btn {
  padding: 7px 13px;
  font-size: 12.5px;
  font-weight: 500;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sub-tab-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.6);
}

.sub-tab-btn.active {
  background: #ffffff;
  color: var(--primary);
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  border: 1px solid var(--glass-border);
}

.help-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: rgba(99, 102, 241, 0.12);
  color: #4f46e5;
  font-size: 11px;
  font-weight: 700;
  margin-left: 5px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid rgba(99, 102, 241, 0.25);
  line-height: 1;
}

.help-circle:hover {
  background: #4f46e5;
  color: #ffffff;
  transform: scale(1.18);
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.35);
}

.help-badge-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(99, 102, 241, 0.08);
  color: #4f46e5;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid rgba(99, 102, 241, 0.25);
  transition: all 0.2s ease;
  margin-left: 8px;
  vertical-align: middle;
}

.help-badge-btn:hover {
  background: rgba(99, 102, 241, 0.18);
  color: #3730a3;
  border-color: #4f46e5;
  transform: translateY(-1px);
}


.alert-notice {
  background: rgba(254, 243, 199, 0.6);
  border-left: 4px solid var(--accent-amber);
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 13px;
  line-height: 1.6;
  color: #92400e;
}

.alert-info-box {
  background: rgba(224, 242, 254, 0.6);
  border-left: 4px solid var(--accent-cyan);
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 13px;
  line-height: 1.6;
  color: #0369a1;
}

.drama-line-card {
  padding: 12px 16px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--glass-border);
  margin-bottom: 10px;
  transition: all 0.2s;
}

.drama-line-card:hover {
  background: #ffffff;
  border-color: var(--primary-glow);
  box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

/* Portal / SaaS Landing Page Styles */
.portal-container {
  min-height: 100vh;
  width: 100%;
  background: var(--bg-space);
  display: flex;
  flex-direction: column;
}

.portal-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid var(--glass-border);
  padding: 14px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
}

.portal-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text-main);
  text-decoration: none;
}

.portal-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.portal-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}

.portal-link:hover {
  color: var(--primary);
}

.portal-hero {
  max-width: 1200px;
  margin: 50px auto 40px;
  padding: 0 24px;
  text-align: center;
}

.portal-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(79, 70, 229, 0.08);
  border: 1px solid rgba(79, 70, 229, 0.2);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 20px;
}

.portal-title {
  font-size: 46px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #0f172a;
  line-height: 1.25;
  margin-bottom: 20px;
}

.portal-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.portal-cta-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.portal-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto 60px;
}

.portal-stat-box {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 20px;
  backdrop-filter: blur(12px);
  text-align: center;
}

.portal-features-section {
  max-width: 1200px;
  margin: 0 auto 70px;
  padding: 0 24px;
}

.portal-section-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.portal-section-sub {
  text-align: center;
  font-size: 15px;
  color: var(--text-dim);
  margin-bottom: 40px;
}

.portal-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.portal-feature-card {
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 30px;
  backdrop-filter: blur(14px);
  transition: all 0.25s ease;
}

.portal-feature-card:hover {
  transform: translateY(-4px);
  background: #ffffff;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.05);
}

.portal-pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto 80px;
  padding: 0 24px;
}

.portal-pricing-card {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 34px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.25s;
}

.portal-pricing-card.popular {
  border-color: var(--primary);
  box-shadow: 0 12px 36px rgba(79, 70, 229, 0.12);
  background: rgba(255, 255, 255, 0.95);
  transform: scale(1.03);
}

.portal-pricing-card:hover {
  transform: translateY(-4px) scale(1.03);
}

.portal-footer {
  border-top: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.6);
  padding: 36px 40px;
  text-align: center;
  font-size: 13px;
  color: var(--text-dim);
  margin-top: auto;
}

/* Portal Rich Features & Spotlight Cards */
.portal-features-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.portal-spotlight-card {
  background: rgba(255, 255, 255, 0.88);
  border: 1.5px solid #c7d2fe;
  border-radius: 18px;
  padding: 32px 36px;
  backdrop-filter: blur(16px);
  margin-bottom: 24px;
  box-shadow: 0 10px 30px rgba(79, 70, 229, 0.05);
  transition: all 0.25s ease;
}

.portal-spotlight-card:hover {
  background: #ffffff;
  box-shadow: 0 16px 40px rgba(79, 70, 229, 0.09);
}

.portal-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 12px;
}

.portal-badge-indigo {
  background: #eef2ff;
  color: #3730a3;
  border: 1px solid #c7d2fe;
}

.portal-badge-emerald {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.portal-badge-cyan {
  background: #ecfeff;
  color: #155e75;
  border: 1px solid #a5f3fc;
}

.portal-badge-amber {
  background: #fffbeb;
  color: #92400e;
  border: 1px solid #fde68a;
}

.portal-badge-rose {
  background: #fff1f2;
  color: #9f1239;
  border: 1px solid #fecdd3;
}

.portal-step-flow {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 18px 0;
  padding: 16px 20px;
  background: #f8faff;
  border: 1px dashed #cbd5e1;
  border-radius: 12px;
}

.portal-step-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 700;
  color: #1e293b;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  padding: 7px 12px;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.portal-step-item .step-num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #4f46e5;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  flex-shrink: 0;
}

.portal-step-arrow {
  color: #94a3b8;
  font-weight: 800;
  font-size: 14px;
}

.portal-feature-list {
  list-style: none;
  padding: 0;
  margin: 14px 0 0 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.portal-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: #334155;
  line-height: 1.55;
}

.portal-feature-list li .check-icon {
  color: #10b981;
  font-weight: 800;
  flex-shrink: 0;
}

.portal-channel-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.portal-channel-chip {
  padding: 5px 12px;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  color: #1e293b;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}

@media (max-width: 960px) {
  .portal-features-grid-3,
  .portal-features-grid,
  .portal-stats-row,
  .portal-pricing-grid {
    grid-template-columns: 1fr !important;
  }
  .portal-title {
    font-size: 32px !important;
  }
  .portal-subtitle {
    font-size: 15px !important;
  }
  .portal-links {
    display: none !important;
  }
  .portal-step-flow {
    flex-direction: column;
    align-items: flex-start;
  }
  .portal-step-arrow {
    display: none;
  }
}

@keyframes pulseGlow {
  0% { transform: scale(1); box-shadow: 0 4px 16px rgba(16, 185, 129, 0.35); }
  50% { transform: scale(1.025); box-shadow: 0 8px 28px rgba(16, 185, 129, 0.65); }
  100% { transform: scale(1); box-shadow: 0 4px 16px rgba(16, 185, 129, 0.35); }
}

/* AI Dynamic Neural Background */
#ai-dynamic-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.72;
}

.portal-container {
  position: relative;
  z-index: 1;
}

/* App Logo Styling */
.app-brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
  display: block;
  flex-shrink: 0;
}

.app-brand-logo-sidebar {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
  display: block;
  flex-shrink: 0;
}

/* High-End Realistic Window Frame Mockups for Landing Page */
.portal-window-frame {
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 24px 60px -12px rgba(15, 23, 42, 0.18), 0 0 0 1px rgba(226, 232, 240, 0.9);
  background: #0f172a;
  margin-top: 24px;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.portal-window-frame:hover {
  transform: translateY(-5px);
  box-shadow: 0 32px 75px -12px rgba(79, 70, 229, 0.25), 0 0 0 1.5px rgba(99, 102, 241, 0.4);
}

.portal-window-header {
  background: rgba(15, 23, 42, 0.96);
  padding: 11px 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.portal-window-dots {
  display: flex;
  align-items: center;
  gap: 7px;
}

.portal-window-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.portal-window-dot.red { background: #ff5f56; }
.portal-window-dot.yellow { background: #ffbd2e; }
.portal-window-dot.green { background: #27c93f; }

.portal-window-title {
  margin-left: auto;
  margin-right: auto;
  font-size: 12px;
  font-weight: 500;
  color: #94a3b8;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.portal-window-badge {
  background: rgba(16, 185, 129, 0.18);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
  font-size: 10.5px;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 700;
}

.portal-window-img {
  width: 100%;
  height: auto;
  display: block;
  filter: brightness(0.99) contrast(1.02);
}

/* Feature Showcase Hero Grid */
.portal-showcase-split {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 36px;
  align-items: center;
  margin-top: 24px;
}

@media (max-width: 960px) {
  .portal-showcase-split {
    grid-template-columns: 1fr !important;
  }
}

/* ======================================================== */
/* Mobile Responsive Adaptation (Console & Layout)         */
/* ======================================================== */

/* Backdrop overlay when sidebar drawer is open */
.sidebar-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 48;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.sidebar-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

/* Mobile Hamburger Toggle Button */
.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 9px;
  border: 1px solid var(--glass-border);
  background: var(--glass-card);
  font-size: 18px;
  cursor: pointer;
  color: var(--text-main);
  transition: all 0.2s;
  flex-shrink: 0;
}

.mobile-menu-toggle:active {
  transform: scale(0.92);
  background: rgba(79, 70, 229, 0.1);
}

/* Mobile Bottom Navigation Dock */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 58px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--glass-border);
  z-index: 45;
  justify-content: space-around;
  align-items: center;
  padding-bottom: env(safe-area-inset-bottom, 0px);
  box-shadow: 0 -2px 14px rgba(0, 0, 0, 0.05);
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  padding: 4px 0;
  color: var(--text-muted);
  text-decoration: none;
  cursor: pointer;
  position: relative;
  transition: all 0.2s;
}

.mobile-nav-item:active {
  transform: scale(0.94);
}

.mobile-nav-item.active {
  color: var(--primary);
}

.mobile-nav-item .mobile-nav-icon {
  font-size: 20px;
  line-height: 1;
  margin-bottom: 2px;
}

.mobile-nav-item .mobile-nav-label {
  font-size: 10.5px;
  font-weight: 600;
}

.mobile-nav-badge {
  position: absolute;
  top: 0px;
  right: 20%;
  background: var(--accent-rose);
  color: #fff;
  font-size: 9.5px;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 3px;
  border: 1.5px solid #fff;
}

/* Responsive Media Queries for Mobile Screens */
@media (max-width: 768px) {
  /* Sidebar Mobile Slide-in Drawer */
  .sidebar {
    width: 275px;
    max-width: 82vw;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 50;
    box-shadow: 4px 0 30px rgba(0, 0, 0, 0.18);
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  /* Main Wrapper expands to 100% width on phone */
  .main-wrapper {
    margin-left: 0 !important;
    max-width: 100vw !important;
    width: 100vw !important;
    padding-bottom: 68px !important;
  }

  /* Compact Topbar */
  .topbar {
    padding: 0 12px;
    height: 56px;
    gap: 8px;
  }

  .mobile-menu-toggle {
    display: inline-flex !important;
  }

  .topbar-title {
    font-size: 15px;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .topbar-actions {
    gap: 6px;
  }

  .topbar-actions .btn {
    padding: 6px 10px;
    font-size: 12px;
  }

  #topbar-user-badge {
    display: none !important; /* Hide verbose badge on mobile header */
  }

  /* Content body padding */
  .content-body {
    padding: 14px 10px !important;
  }

  /* Show Bottom Navigation */
  .mobile-bottom-nav {
    display: flex !important;
  }

  /* Grids collapse to 1 column */
  .metrics-grid,
  .grid-2,
  .grid-3,
  .grid-4,
  .dashboard-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  .glass-card {
    padding: 16px !important;
    border-radius: 12px !important;
  }

  /* Tables horizontal scroll */
  .table-responsive,
  .table-container {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    display: block;
  }

  /* Form & inputs */
  .form-control,
  .form-input,
  select,
  textarea {
    font-size: 16px !important; /* Prevents auto zoom in iOS Safari */
  }

  /* Modals on mobile */
  .modal-card {
    max-width: 94vw !important;
    width: 94vw !important;
    margin: 12px auto !important;
    max-height: 90vh !important;
    padding: 16px !important;
  }

  /* Sub tabs bar horizontal scroll */
  .sub-tabs {
    overflow-x: auto;
    flex-wrap: nowrap !important;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
  }

  .sub-tab-btn {
    flex-shrink: 0;
    white-space: nowrap;
  }
}

/* USDT Recharge & Subscription Plan Grid */
.recharge-plan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
}

.recharge-plan-card {
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  display: flex;
  flex-direction: column;
}

.recharge-plan-card:hover {
  border-color: rgba(99, 102, 241, 0.5);
  background: rgba(99, 102, 241, 0.06);
  transform: translateY(-2px);
}

.recharge-plan-card.active {
  border-color: var(--primary);
  background: rgba(79, 70, 229, 0.12);
  box-shadow: 0 0 20px rgba(79, 70, 229, 0.25);
}

.recharge-plan-card .plan-badge {
  position: absolute;
  top: -8px;
  right: 12px;
  background: var(--primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
}

/* ======================================================== */
/* Enhanced Mobile & Desktop Responsive Adaptation         */
/* ======================================================== */

/* --- Language Selector Dropdown (PC & Mobile) --- */
.lang-selector-dropdown {
  position: relative;
  display: inline-block;
}

.lang-dropdown-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--glass-border);
  color: #1e293b;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.lang-dropdown-btn:hover {
  background: rgba(255, 255, 255, 1);
  border-color: var(--primary);
  color: var(--primary);
}

.lang-dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 145px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  box-shadow: 0 12px 36px rgba(15, 23, 42, 0.16);
  padding: 6px;
  display: none;
  flex-direction: column;
  gap: 2px;
  z-index: 10000;
}

.lang-dropdown-menu.show {
  display: flex !important;
}

.lang-option {
  padding: 8px 12px;
  font-size: 12.5px;
  font-weight: 500;
  color: #1e293b;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.lang-option:hover,
.lang-option.active {
  background: rgba(79, 70, 229, 0.08);
  color: var(--primary);
  font-weight: 700;
}

/* Mobile Language Grid */
.portal-mobile-lang-picker {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--glass-border);
}

.portal-mobile-lang-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.portal-mobile-lang-btn {
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid var(--glass-border);
  background: rgba(248, 250, 252, 0.85);
  color: #334155;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.portal-mobile-lang-btn.active {
  background: rgba(79, 70, 229, 0.12);
  border-color: var(--primary);
  color: var(--primary);
  font-weight: 700;
}

/* --- Portal Mobile Hamburger Toggle & Drawer Navigation --- */
.portal-mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 36px;
  height: 36px;
  padding: 8px 6px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  cursor: pointer;
  z-index: 1002;
  transition: all 0.2s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.portal-mobile-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: #1e293b;
  border-radius: 2px;
  transition: all 0.25s ease;
}

.portal-mobile-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.portal-mobile-toggle.open span:nth-child(2) {
  opacity: 0;
}

.portal-mobile-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.portal-mobile-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: 9998;
}

.portal-mobile-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.portal-mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 320px;
  max-width: 86vw;
  height: 100vh;
  height: 100dvh;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-left: 1px solid var(--glass-border);
  box-shadow: -8px 0 36px rgba(15, 23, 42, 0.18);
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  padding: 16px;
  overflow-y: auto;
  box-sizing: border-box;
}

.portal-mobile-menu.active {
  transform: translateX(0);
}

.portal-mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: 12px;
}

.portal-mobile-menu-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.portal-mobile-menu-close {
  width: 32px;
  height: 32px;
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.04);
  border-radius: 8px;
  font-size: 16px;
  color: #64748b;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portal-mobile-menu-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.portal-mobile-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border-radius: 10px;
  text-decoration: none;
  color: #1e293b;
  font-size: 13.5px;
  font-weight: 600;
  background: rgba(248, 250, 252, 0.7);
  border: 1px solid rgba(226, 232, 240, 0.7);
  cursor: pointer;
  transition: all 0.18s ease;
}

.portal-mobile-link:active,
.portal-mobile-link:hover {
  background: rgba(79, 70, 229, 0.08);
  border-color: rgba(79, 70, 229, 0.25);
  color: var(--primary);
  transform: translateX(2px);
}

.portal-mobile-link-icon {
  font-size: 16px;
}

.portal-mobile-link-text {
  flex: 1;
}

.portal-mobile-link-badge {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.05);
  color: #64748b;
}

.portal-mobile-menu-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--glass-border);
}

.portal-mobile-action-btn {
  width: 100%;
  padding: 11px 14px;
  font-size: 13.5px;
  font-weight: 700;
  border-radius: 10px;
  justify-content: center;
  display: flex;
}

/* --- Breakpoint: <= 960px (Tablets & Landscape Phones) --- */
@media (max-width: 960px) {
  .portal-mobile-toggle {
    display: flex !important;
  }
  .portal-links {
    display: none !important;
  }
}

/* --- Breakpoint: <= 768px (Standard Smartphones) --- */
@media (max-width: 768px) {
  /* 1. Portal Navigation & Header */
  .portal-nav {
    padding: 10px 12px !important;
    gap: 8px !important;
  }

  .portal-nav .lang-selector-dropdown {
    display: none !important;
  }

  .portal-logo img {
    width: 30px !important;
    height: 30px !important;
  }

  .portal-logo div div:first-child {
    font-size: 14.5px !important;
  }

  .portal-logo div div:last-child {
    display: none !important;
  }

  .portal-nav-actions {
    gap: 5px !important;
  }

  .portal-nav-actions .btn {
    padding: 5px 8px !important;
    font-size: 11.5px !important;
    border-radius: 8px !important;
    white-space: nowrap !important;
  }

  .portal-nav-user-welcome {
    display: none !important;
  }

  .portal-nav-logout-btn {
    display: none !important;
  }

  /* 2. Portal Hero Section */
  .portal-hero {
    padding: 24px 12px 20px !important;
  }

  .portal-tag {
    font-size: 11px !important;
    padding: 6px 12px !important;
    white-space: normal !important;
    line-height: 1.45 !important;
    text-align: center !important;
    max-width: 95vw !important;
    display: inline-block !important;
  }

  .portal-title {
    font-size: clamp(20px, 5.8vw, 30px) !important;
    line-height: 1.35 !important;
    margin-bottom: 12px !important;
  }

  .portal-subtitle {
    font-size: 13px !important;
    line-height: 1.6 !important;
    margin-bottom: 18px !important;
    padding: 0 4px !important;
  }

  .portal-cta-btns {
    flex-direction: column !important;
    width: 100% !important;
    gap: 10px !important;
  }

  .portal-cta-btns .btn {
    width: 100% !important;
    justify-content: center !important;
    padding: 12px 14px !important;
    font-size: 14px !important;
  }

  .portal-window-frame {
    margin: 14px 0 20px !important;
    border-radius: 10px !important;
  }

  .portal-window-header {
    padding: 8px 10px !important;
  }

  .portal-window-title {
    font-size: 10px !important;
    max-width: 58vw;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .portal-stats-row {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
    margin: 18px 0 !important;
  }

  .portal-stat-box {
    padding: 12px 8px !important;
  }

  .portal-stat-box div:first-child {
    font-size: 21px !important;
  }

  .portal-stat-box div:last-child {
    font-size: 11px !important;
  }

  /* 3. Features & Spotlight Sections */
  .portal-features-section {
    padding: 28px 12px !important;
  }

  .portal-section-title {
    font-size: 19px !important;
  }

  .portal-section-sub {
    font-size: 12px !important;
    margin-bottom: 18px !important;
  }

  .portal-features-grid,
  .portal-features-grid-3,
  .portal-pricing-grid {
    grid-template-columns: 1fr !important;
    gap: 14px !important;
  }

  .portal-feature-card,
  .portal-pricing-card {
    padding: 18px 16px !important;
  }

  .portal-spotlight-cols-3,
  .portal-spotlight-cols-2 {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  .portal-step-flow {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 8px !important;
  }

  .portal-step-arrow {
    display: none !important;
  }

  .portal-step-item {
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* 4. Console Topbar & Actions */
  .topbar {
    padding: 0 10px !important;
    height: 54px !important;
    gap: 6px !important;
  }

  .topbar-title {
    font-size: 14px !important;
    font-weight: 700 !important;
    flex: 1 !important;
    min-width: 0 !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
  }

  .topbar-actions {
    gap: 4px !important;
    flex-shrink: 0 !important;
  }

  .topbar-actions .btn {
    padding: 5px 8px !important;
    font-size: 11.5px !important;
    white-space: nowrap !important;
  }

  .topbar-btn-security,
  #topbar-user-badge {
    display: none !important;
  }

  /* 5. CS Workbench Mobile Excellence */
  .cs-workbench-grid {
    display: flex !important;
    flex-direction: column !important;
    height: calc(100vh - 150px) !important;
    min-height: auto !important;
    gap: 0 !important;
    position: relative !important;
  }

  #cs-col-sessions {
    width: 100% !important;
    height: 100% !important;
    max-height: none !important;
    display: flex !important;
  }

  #cs-col-sessions.mobile-hidden {
    display: none !important;
  }

  #cs-col-chat {
    display: none;
    width: 100% !important;
    height: 100% !important;
    min-height: auto !important;
  }

  #cs-col-chat.mobile-active {
    display: flex !important;
  }

  .cs-mobile-back-btn,
  .cs-mobile-profile-toggle {
    display: inline-flex !important;
  }

  #cs-col-profile {
    display: none;
  }

  #cs-col-profile.mobile-sheet-open {
    display: flex !important;
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    max-height: 80vh !important;
    overflow-y: auto !important;
    z-index: 9999 !important;
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(24px) !important;
    border-top: 2px solid var(--primary) !important;
    border-radius: 20px 20px 0 0 !important;
    padding: 16px !important;
    box-shadow: 0 -12px 40px rgba(0, 0, 0, 0.25) !important;
  }

  .cs-mobile-sheet-header {
    display: flex !important;
  }

  /* 6. IM Mobile Excellence */
  .im-layout-wrapper {
    flex-direction: column !important;
    height: calc(100vh - 150px) !important;
    min-height: auto !important;
    position: relative !important;
  }

  .im-left-col {
    width: 100% !important;
    min-width: 100% !important;
    height: 100% !important;
    max-height: none !important;
    border-right: none !important;
    display: flex !important;
  }

  .im-left-col.mobile-hidden {
    display: none !important;
  }

  #im-right-panel {
    display: none;
    width: 100% !important;
    height: 100% !important;
    min-height: auto !important;
  }

  #im-right-panel.mobile-active {
    display: flex !important;
  }

  .im-mobile-back-btn {
    display: inline-flex !important;
  }

  /* 7. Automatic Multi-Column Grid Collapse for All Backend Views */
  #view-content div[style*="grid-template-columns: 2fr 1fr"],
  #view-content div[style*="grid-template-columns: 1.4fr 1fr"],
  #view-content div[style*="grid-template-columns: 1.2fr 1fr"],
  #view-content div[style*="grid-template-columns: 1.5fr 1fr"],
  #view-content div[style*="grid-template-columns: 1.1fr 1fr"],
  #view-content div[style*="grid-template-columns: 1.35fr 1fr"],
  #view-content div[style*="grid-template-columns: 1.25fr 1fr"],
  #view-content div[style*="grid-template-columns: 1fr 1.35fr"],
  #view-content div[style*="grid-template-columns: 1.15fr 1.15fr 0.7fr"],
  #view-content div[style*="grid-template-columns: 1fr 1fr 1fr"] {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  /* Sub-tabs horizontal touch swipe */
  .sub-tabs,
  #view-content div[style*="border-bottom: 1px solid var(--glass-border)"][style*="display: flex"] {
    overflow-x: auto !important;
    flex-wrap: nowrap !important;
    -webkit-overflow-scrolling: touch !important;
    padding-bottom: 6px !important;
  }

  .sub-tabs button,
  #view-content div[style*="border-bottom: 1px solid var(--glass-border)"] button {
    flex-shrink: 0 !important;
    white-space: nowrap !important;
  }

  /* Table horizontal touch scroll */
  .table-responsive {
    border-radius: 8px;
    -webkit-overflow-scrolling: touch;
    width: 100% !important;
    display: block !important;
  }

  .glass-table th,
  .glass-table td {
    padding: 9px 10px !important;
    font-size: 12px !important;
    white-space: nowrap !important;
  }

  /* Responsive input fields in content body */
  .content-body input[type="text"]:not([style*="max-width"]),
  .content-body select:not([style*="max-width"]) {
    max-width: 100% !important;
  }

  /* Metric cards grid 2 columns */
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
  }

  .metric-card {
    padding: 12px 14px !important;
  }

  .metric-card .metric-val {
    font-size: 20px !important;
  }

  /* Recharge modal on mobile */
  #usdt-recharge-modal .modal-card {
    max-width: 95vw !important;
    width: 95vw !important;
    padding: 16px !important;
    margin: 10px auto !important;
  }

  .recharge-plan-grid {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }

  #pay-actual-amount {
    font-size: 30px !important;
  }
}

/* Extra small mobile screens (iPhone SE, etc.) */
@media (max-width: 480px) {
  .metrics-grid {
    grid-template-columns: 1fr !important;
  }

  .portal-stat-box div:first-child {
    font-size: 19px !important;
  }

  .topbar-actions .btn {
    padding: 4px 6px !important;
    font-size: 11px !important;
  }
}