:root {
  --bg-app: #080708;
  --bg-sidebar: #0f0d10;
  --bg-card: #18151a;
  --bg-card-hover: #221e26;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-gold: rgba(220, 170, 80, 0.35);
  --text-main: #f5f2f7;
  --text-muted: #9e97a4;
  --primary-gold: #e2a84b;
  --primary-pink: #ff3366;
  --primary-red: #d91b42;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

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

body {
  background: var(--bg-app);
  color: var(--text-main);
  font-family: var(--font-family);
  height: 100vh;
  overflow: hidden;
}

.app-layout {
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* ================= SIDEBAR ================= */
.sidebar {
  width: 270px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 24px 16px;
  flex-shrink: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  padding-left: 8px;
}

.brand-icon {
  font-size: 30px;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #ff3366, #ff758f);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(255, 51, 102, 0.4);
}

.brand-info h2 {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-info small {
  color: var(--text-muted);
  font-size: 11px;
  display: block;
  margin-top: 2px;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  overflow-y: auto;
}

.nav-section-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin: 12px 0 6px 10px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 10px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
}

.nav-item.active {
  background: rgba(226, 168, 75, 0.12);
  border-color: rgba(226, 168, 75, 0.35);
  color: #ffd87d;
}

.author-card {
  margin-top: auto;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: 14px;
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 40px;
  height: 40px;
  background: #ffd87d;
  color: #000;
  font-weight: 900;
  font-size: 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.author-details strong {
  display: block;
  font-size: 14px;
}

.author-sub {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.author-btn {
  display: inline-block;
  background: rgba(226, 168, 75, 0.2);
  color: #ffe08a;
  text-decoration: none;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 8px;
  border: 1px solid rgba(226, 168, 75, 0.4);
}

/* ================= MAIN CONTENT ================= */
.main-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background: var(--bg-app);
}

.topbar {
  height: 64px;
  border-bottom: 1px solid var(--border-color);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(15, 13, 16, 0.6);
  backdrop-filter: blur(20px);
  flex-shrink: 0;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.time-pill {
  background: rgba(255, 255, 255, 0.06);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #bbb;
  transition: all 0.2s ease;
}
.status-pill:before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #888;
  display: inline-block;
}
.status-pill.connected {
  background: rgba(52, 199, 89, 0.15);
  border-color: rgba(52, 199, 89, 0.4);
  color: #34c759;
}
.status-pill.connected:before {
  background: #34c759;
  box-shadow: 0 0 8px #34c759;
  animation: pulseDot 2s infinite;
}
.status-pill.connecting, .status-pill.waiting, .status-pill.retry {
  background: rgba(255, 214, 10, 0.15);
  border-color: rgba(255, 214, 10, 0.4);
  color: #ffd60a;
}
.status-pill.connecting:before, .status-pill.waiting:before {
  background: #ffd60a;
  box-shadow: 0 0 8px #ffd60a;
  animation: pulseDot 1s infinite;
}
.status-pill.error {
  background: rgba(255, 69, 58, 0.15);
  border-color: rgba(255, 69, 58, 0.4);
  color: #ff453a;
}
.status-pill.error:before {
  background: #ff453a;
}
.status-pill.offline {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.15);
  color: #8e8798;
}
.status-pill.offline:before {
  background: #8e8798;
}

@keyframes pulseDot {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.7; }
}

/* Connection Card Style */
.connection-card {
  border: 1px solid rgba(255, 215, 0, 0.35) !important;
  background: linear-gradient(135deg, rgba(255, 107, 139, 0.08) 0%, rgba(25, 18, 34, 0.95) 100%) !important;
  border-radius: 14px;
  padding: 18px 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  margin-bottom: 22px;
}
.btn-connect-gold {
  background: linear-gradient(135deg, #ffd700 0%, #ff8c00 100%) !important;
  color: #120e18 !important;
  font-weight: 800 !important;
  border: none !important;
  box-shadow: 0 4px 15px rgba(255, 165, 0, 0.35) !important;
  transition: all 0.2s ease;
}
.btn-connect-gold:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 165, 0, 0.5) !important;
}
.btn-connect-gold:disabled {
  opacity: 0.5 !important;
  cursor: not-allowed !important;
  transform: none !important;
}

.topbar-right {
  display: flex;
  gap: 10px;
}

.btn {
  padding: 9px 18px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-primary {
  background: linear-gradient(135deg, #d91b42, #ff3366);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(217, 27, 66, 0.4);
}

.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
}

.btn-danger {
  background: rgba(231, 76, 60, 0.2);
  color: #ff6b6b;
  border-color: rgba(231, 76, 60, 0.4);
}

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

.content-body {
  flex: 1;
  overflow-y: auto;
  padding: 28px;
}

.tab-pane {
  display: none;
  flex-direction: column;
  gap: 24px;
  max-width: 900px;
}

.tab-pane.active {
  display: flex;
}

.section-heading small {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--primary-gold);
}

.section-heading h2 {
  font-size: 26px;
  font-weight: 800;
  margin: 4px 0 6px;
  letter-spacing: -0.5px;
}

.section-heading p {
  color: var(--text-muted);
  font-size: 14px;
}

/* 4 STATS CARDS */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 18px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.stat-icon {
  font-size: 28px;
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-data b {
  display: block;
  font-size: 22px;
  font-weight: 800;
  color: #ffffff;
}

.stat-data span {
  font-size: 12px;
  color: var(--text-muted);
}

/* CARD PANELS */
.card-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 22px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.panel-header h3 {
  font-size: 17px;
  font-weight: 800;
}

.panel-header small {
  color: var(--text-muted);
  font-size: 12px;
}

/* ACTION BUTTONS GRID */
.action-buttons-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.action-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1.5px solid var(--border-color);
  border-radius: 14px;
  padding: 16px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: all 0.2s ease;
  color: var(--text-main);
}

.action-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--primary-gold);
  transform: translateY(-2px);
}

.action-btn .act-icon {
  font-size: 32px;
  margin-bottom: 2px;
}

.action-btn b {
  font-size: 14px;
  font-weight: 750;
}

.action-btn small {
  font-size: 11px;
  color: var(--text-muted);
}

.btn-kiss:hover { border-color: #ff3366 !important; }
.btn-cheers:hover { border-color: #ffd166 !important; }
.btn-cake:hover { border-color: #f77f00 !important; }

/* SIMULATOR */
.simulator-row {
  display: flex;
  gap: 20px;
}

.sim-box {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sim-box label {
  font-size: 13px;
  font-weight: 700;
  color: #ffd87d;
}

.input-action-group {
  display: flex;
  gap: 8px;
}

.input-action-group input {
  flex: 1;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 10px 14px;
  color: #ffffff;
  font-size: 13px;
}

.quick-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  border-radius: 14px;
  padding: 4px 10px;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tag-btn:hover {
  background: rgba(226, 168, 75, 0.2);
  color: #ffd87d;
  border-color: var(--primary-gold);
}

.sim-gift-buttons {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-gift {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 10px 14px;
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-gift:hover {
  background: rgba(255, 51, 102, 0.15);
  border-color: #ff3366;
}

/* FORMS */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-group label {
  font-size: 13px;
  font-weight: 700;
  color: #ffd87d;
}

.form-group input, .form-group select, .form-group textarea {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 10px 14px;
  color: #ffffff;
  font-size: 14px;
  font-family: inherit;
}

.panel-footer {
  margin-top: 20px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* DATA TABLE */
.table-responsive {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th, .data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  font-size: 13px;
}

.data-table th {
  color: var(--text-muted);
  font-weight: 700;
}

.webhook-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  padding: 12px 16px;
  border-radius: 10px;
  margin-top: 12px;
}

.webhook-box code {
  flex: 1;
  color: #2ecc71;
  font-size: 14px;
}

/* ================= RIGHT PREVIEW ================= */
.preview-sidebar {
  width: 440px;
  background: var(--bg-sidebar);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  flex-shrink: 0;
}

.preview-header {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #ffd87d;
  margin-bottom: 14px;
}

.phone-frame {
  width: 375px;
  height: 667px;
  border: 4px solid #2a2530;
  border-radius: 36px;
  overflow: hidden;
  background: #000;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.dynamic-island {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 12px;
  background: #000;
  border-radius: 10px;
  z-index: 10;
}

.phone-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.preview-controls {
  margin-top: 14px;
}

/* ================= MOBILE (<=1100px): panel dễ thao tác trên điện thoại ================= */
/* Ngưỡng 1100px (thay cho 900px) để cả iPad dọc, điện thoại ngang và webview trong app
   đều dùng layout dọc: sidebar thành header, nội dung full-width, preview ẩn mặc định.
   Layout 3 cột cũ ở màn hẹp ép cột nội dung về 0 nên bấm menu không thấy gì. */
#btn-toggle-preview { display: none; }
#btn-close-preview { display: none; }

@media (max-width: 1100px) {
  .app-layout { flex-direction: column; height: 100dvh; }

  /* Sidebar thành header gọn trên cùng, menu thành hàng cuộn ngang */
  .sidebar {
    width: 100%;
    padding: 10px 12px 8px;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
  }
  .brand { margin-bottom: 8px; padding-left: 0; }
  .brand-icon { width: 36px; height: 36px; font-size: 24px; }
  .brand-info h2 { font-size: 17px; }
  .nav-menu {
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 6px;
    padding-bottom: 2px;
    -webkit-overflow-scrolling: touch;
  }
  .nav-section-title { display: none; }
  .nav-item { flex-shrink: 0; white-space: nowrap; min-height: 44px; padding: 10px 14px; }
  .author-card { display: none; }

  .main-content { flex: 1; min-height: 0; }
  .topbar { height: auto; min-height: 56px; padding: 8px 12px; flex-wrap: wrap; gap: 8px; }
  .topbar-right { flex-wrap: wrap; }
  #btn-toggle-preview { display: inline-flex; }
  .time-pill { font-size: 12px; }

  .content-body { padding: 16px 14px 32px; }
  .section-heading h2 { font-size: 21px; }
  .tab-pane { max-width: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat-card { padding: 12px; }
  .action-buttons-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .action-btn { min-height: 88px; padding: 12px 8px; }
  .action-btn .act-icon { font-size: 26px; }
  .simulator-row { flex-direction: column; }
  .form-grid { grid-template-columns: 1fr; }
  .gs-slots-grid { grid-template-columns: 1fr; }
  .form-group.full-width { grid-column: span 1; }
  .card-panel { padding: 16px; }
  .panel-header { flex-wrap: wrap; gap: 8px; }
  .input-action-group { flex-wrap: wrap; }
  .input-action-group .btn { flex: 1 1 100%; justify-content: center; }

  /* Ô nhập >= 16px để iOS không tự zoom khi chạm vào */
  input, select, textarea { font-size: 16px !important; }
  .form-group input, .form-group select, .form-group textarea { font-size: 16px; padding: 12px 14px; }
  .btn { min-height: 44px; font-size: 14px; }
  .btn-sm { min-height: 40px; }
  .tag-btn { min-height: 36px; padding: 8px 12px; font-size: 13px; }
  .btn-gift { min-height: 48px; }

  /* Preview: ẩn mặc định trên điện thoại, bấm nút mới hiện dạng lớp phủ toàn màn hình */
  .preview-sidebar { display: none; }
  body.preview-open .preview-sidebar {
    display: flex;
    position: fixed;
    inset: 0;
    z-index: 1000;
    width: 100%;
    background: rgba(8, 7, 8, 0.98);
    padding: 16px 12px;
    overflow-y: auto;
  }
  body.preview-open .phone-frame { width: min(360px, 94vw); height: min(640px, 78dvh); flex-shrink: 0; }
  body.preview-open .preview-controls { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
  body.preview-open #btn-close-preview { display: inline-flex; }
}

/* Lên sân 2 slot: 2 cột trên desktop, 1 cột trên điện thoại (xem media query). */
.gs-slots-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }