/* 100% Self-Contained Offline Responsive CSS for TeleTools Suite Hub */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-app: #030712;
  --bg-sidebar: #0b1120;
  --bg-card: #0f172a;
  --bg-card-hover: #1e293b;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(56, 189, 248, 0.4);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --primary: #0284c7;
  --primary-hover: #0369a1;
  --accent: #38bdf8;
  --success: #10b981;
  --danger: #ef4444;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --sidebar-w: 280px;
}

html, body {
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  background-color: var(--bg-app);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  user-select: none;
  -webkit-font-smoothing: antialiased;
}

.app-layout {
  display: flex;
  width: 100vw;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  position: relative;
}

/* MOBILE BACKDROP */
.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 40;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

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

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-w);
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-shrink: 0;
  z-index: 50;
  height: 100%;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-brand {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

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

.brand-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #0284c7, #2563eb, #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
  flex-shrink: 0;
}

.brand-text {
  flex: 1;
}

.brand-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.3px;
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 11px;
  font-weight: 500;
  color: var(--accent);
}

.badge-status-online {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
  text-transform: uppercase;
}

.btn-close-sidebar {
  display: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-close-sidebar:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

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

.nav-section-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-dim);
  padding: 16px 12px 8px;
}

.nav-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  margin-bottom: 3px;
  min-height: 42px;
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.nav-btn.active {
  background: rgba(2, 132, 199, 0.15);
  color: var(--accent);
  border-left: 3px solid var(--accent);
}

.nav-btn-left {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-badge {
  font-size: 11px;
  font-family: monospace;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-dim);
}

.tool-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-dim);
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.status-dot.online {
  background: var(--success);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.25);
  padding-bottom: calc(16px + env(safe-area-inset-bottom));
}

.footer-meta {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.footer-mode {
  color: var(--accent);
  font-weight: 600;
}

.footer-actions {
  display: flex;
  gap: 8px;
}

.btn-action {
  flex: 1;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  border: 1px solid;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.15s ease;
  min-height: 38px;
}

.btn-start-all {
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.3);
}
.btn-start-all:hover {
  background: rgba(16, 185, 129, 0.22);
}

.btn-stop-all {
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.3);
}
.btn-stop-all:hover {
  background: rgba(239, 68, 68, 0.22);
}

/* MAIN VIEWPORT */
.main-viewport {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background-color: var(--bg-app);
  height: 100%;
  height: 100dvh;
}

.topbar {
  height: 60px;
  background: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-color);
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  padding-top: env(safe-area-inset-top);
  gap: 10px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  overflow: hidden;
}

.btn-hamburger {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s;
}

.btn-hamburger:hover {
  background: rgba(255, 255, 255, 0.1);
}

.topbar-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.topbar-title-wrap {
  min-width: 0;
  overflow: hidden;
}

.topbar-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-subtitle {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.badge-pill {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.badge-pill.badge-online {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-pill.badge-stopped {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.btn-primary {
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: #fff;
  border: none;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: background 0.15s ease;
  min-height: 34px;
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-primary.btn-danger {
  background: var(--danger);
}
.btn-primary.btn-danger:hover {
  background: #dc2626;
}

.btn-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* CONTENT STAGE */
.content-stage {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--bg-app);
}

.overview-view {
  position: absolute;
  inset: 0;
  padding: 20px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.hero-banner {
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.35), rgba(88, 28, 135, 0.2));
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 20px;
}

.hero-content h2 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.hero-content p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.55;
  max-width: 680px;
}

.section-header h3 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
}

.counter-tag {
  font-size: 11px;
  color: var(--text-dim);
  font-family: monospace;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
  padding-bottom: 24px;
}

.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.2s ease;
}

.tool-card:hover {
  border-color: var(--border-focus);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.card-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-status-badge {
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid;
}

.card-status-badge.online {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.3);
}

.card-status-badge.offline {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-dim);
  border-color: var(--border-color);
}

.card-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.card-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.card-footer {
  display: flex;
  gap: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}

.btn-open-tool {
  flex: 1;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  background: rgba(2, 132, 199, 0.15);
  color: var(--accent);
  border: 1px solid rgba(2, 132, 199, 0.3);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.15s ease;
  min-height: 38px;
}

.btn-open-tool:hover {
  background: rgba(2, 132, 199, 0.25);
}

.btn-power-tool {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.btn-power-tool:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* TOOL VIEW */
.tool-view {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
}

.tool-loading-overlay {
  position: absolute;
  inset: 0;
  background: var(--bg-app);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: opacity 0.25s ease;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 14px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-title {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
}

.loading-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.tool-iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: var(--bg-app);
}

/* ============================================================== */
/* RESPONSIVE BREAKPOINTS (Mobile & Tablet)                        */
/* ============================================================== */

@media (max-width: 900px) {
  .btn-hamburger {
    display: flex;
  }

  .btn-close-sidebar {
    display: flex;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    height: 100%;
    transform: translateX(-100%);
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
  }

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

  .cards-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
}

@media (max-width: 640px) {
  .topbar {
    padding: 0 12px;
  }

  .topbar-subtitle {
    display: none;
  }

  .overview-view {
    padding: 14px;
  }

  .hero-banner {
    padding: 16px;
    margin-bottom: 16px;
  }

  .hero-content h2 {
    font-size: 16px;
  }

  .cards-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .badge-pill span:not(.badge-dot) {
    display: none;
  }
  .badge-pill {
    padding: 6px;
  }

  .btn-primary span {
    display: none;
  }
  .btn-primary {
    padding: 7px 10px;
  }
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 999px;
}