/* ==========================================================================
   CRM_Project Design System Stylesheet for Telegram Bot Control Hub
   Clean Slate-50 palette (#F8FAFC, #1E293B, #FFFFFF, #E2E8F0, #2563EB)
   ========================================================================== */

:root {
  /* Surface & Canvas */
  --bg-body: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-sidebar: #FFFFFF;
  --bg-input: #FFFFFF;

  /* Typography Colors */
  --text-main: #1E293B;       /* Slate 800 */
  --text-secondary: #475569;  /* Slate 600 */
  --text-muted: #64748B;      /* Slate 500 */
  --text-subtle: #94A3B8;     /* Slate 400 */

  /* Borders */
  --border: #E2E8F0;          /* Slate 200 */
  --border-focus: #2563EB;    /* Blue 600 */
  --border-light: #F1F5F9;    /* Slate 100 */

  /* Primary Brand (CRM Blue-600) */
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --primary-light: #EFF6FF;
  --primary-border: #BFDBFE;
  --primary-text: #1D4ED8;

  /* Status Colors */
  --success: #10B981;
  --success-bg: #ECFDF5;
  --success-text: #047857;
  --success-border: #A7F3D0;

  --warning: #F59E0B;
  --warning-bg: #FFFBEB;
  --warning-text: #B45309;
  --warning-border: #FDE68A;

  --danger: #EF4444;
  --danger-bg: #FEF2F2;
  --danger-text: #B91C1C;
  --danger-border: #FECACA;

  --info: #0284C7;
  --info-bg: #F0F9FF;
  --info-text: #0369A1;
  --info-border: #BAE6FD;

  /* Provider Badges (Exact CRM Palette) */
  --anthropic-bg: #FAF5FF;
  --anthropic-text: #7E22CE;
  --anthropic-border: #E9D5FF;
  --anthropic-accent: #9333EA;

  --openai-bg: #ECFDF5;
  --openai-text: #047857;
  --openai-border: #A7F3D0;
  --openai-accent: #059669;

  --deepseek-bg: #ECFEFF;
  --deepseek-text: #0E7490;
  --deepseek-border: #A5F3FC;
  --deepseek-accent: #0891B2;

  --telegram-bg: #F0F9FF;
  --telegram-text: #0369A1;
  --telegram-border: #BAE6FD;
  --telegram-accent: #0284C7;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-card: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px -1px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-modal: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.08);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

/* ==========================================================================
   Base & Reset
   ========================================================================== */

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

body {
  background-color: var(--bg-body);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  min-height: 100vh;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-body);
}
::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94A3B8;
}

/* ==========================================================================
   Layout Architecture
   ========================================================================== */

.app-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Topbar */
.topbar {
  height: 64px;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-main);
}

.topbar-brand-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #1E293B, #0F172A);
  color: #38BDF8;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(15, 23, 42, 0.2);
}

.topbar-brand-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-main);
}

.topbar-brand-badge {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.03em;
}

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

/* Status Indicators in Topbar */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 500;
  border: 1px solid transparent;
  background: #F1F5F9;
  color: var(--text-secondary);
}

.status-pill.status-bot-active {
  background: var(--success-bg);
  color: var(--success-text);
  border-color: var(--success-border);
}

.status-pill.status-bot-inactive {
  background: #F1F5F9;
  color: var(--text-muted);
  border-color: var(--border);
}

.status-pill.status-db-active {
  background: var(--telegram-bg);
  color: var(--telegram-text);
  border-color: var(--telegram-border);
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.live-dot.active {
  background-color: var(--success);
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: livePulse 2s infinite;
}

.live-dot.inactive {
  background-color: var(--text-subtle);
}

.live-dot.warning {
  background-color: var(--warning);
}

.live-dot.danger {
  background-color: var(--danger);
}

@keyframes livePulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* App Body (Sidebar + Content) */
.app-body {
  display: flex;
  flex: 1;
  min-height: calc(100vh - 64px);
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  padding: 16px 10px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-shrink: 0;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sidebar-heading {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-subtle);
  letter-spacing: 0.05em;
  padding: 8px 12px 6px 12px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 9px 12px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.86rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  background: transparent;
  width: 100%;
  text-align: left;
  transition: all 0.15s ease;
}

.nav-item:hover {
  background: #F8FAFC;
  color: var(--text-main);
  border-color: #F1F5F9;
}

.nav-item.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  border-color: var(--primary-border);
}

.nav-item .nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-item .nav-badge {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 10px;
  background: #E2E8F0;
  color: var(--text-secondary);
}

.nav-item.active .nav-badge {
  background: var(--primary);
  color: #FFFFFF;
}

.sidebar-footer {
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.sidebar-system-card {
  background: #F8FAFC;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* Content Area */
.main-content {
  flex: 1;
  padding: 28px 32px;
  max-width: 1300px;
  width: 100%;
  overflow-y: auto;
}

/* Page Title Block */
.page-header {
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.page-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.page-subtitle {
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ==========================================================================
   Clean Card Components (CRM Neumorphic-Light)
   ========================================================================== */

.crm-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 22px 24px;
  margin-bottom: 20px;
  transition: border-color 0.15s ease;
}

.crm-card:hover {
  border-color: #CBD5E1;
}

.crm-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  flex-wrap: wrap;
  gap: 10px;
}

.crm-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.crm-card-description {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Highlight Hero Card for Bot Status */
.hero-card {
  background: linear-gradient(180deg, #FFFFFF 0%, #F0F9FF 100%);
  border: 1px solid var(--telegram-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 22px 24px;
  margin-bottom: 22px;
}

/* ==========================================================================
   Form Controls, Inputs, Password Eye, Toggles
   ========================================================================== */

.form-group {
  margin-bottom: 16px;
}

.form-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.form-col {
  flex: 1;
  min-width: 240px;
}

.form-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-label-hint {
  font-size: 0.74rem;
  color: var(--text-muted);
  font-weight: 400;
}

.form-control,
input[type="text"],
input[type="password"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 9px 13px;
  border: 1px solid #CBD5E1;
  border-radius: var(--radius-md);
  background: #FFFFFF;
  color: var(--text-main);
  font-size: 0.88rem;
  line-height: 1.4;
  outline: none;
  transition: all 0.15s ease;
}

.form-control:focus,
input[type="text"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-control::placeholder,
input::placeholder,
textarea::placeholder {
  color: var(--text-subtle);
}

textarea.form-control {
  resize: vertical;
  min-height: 110px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.84rem;
}

/* Password with Eye Toggle */
.input-eye-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.input-eye-wrapper input {
  padding-right: 42px !important;
}

.input-eye-btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px 8px;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, background 0.15s;
}

.input-eye-btn:hover {
  color: var(--text-main);
  background: #F1F5F9;
}

/* Toggle Switch */
.switch-container {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #CBD5E1;
  transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 24px;
}

.switch-slider::before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
}

.switch input:checked + .switch-slider {
  background-color: var(--primary);
}

.switch input:checked + .switch-slider::before {
  transform: translateX(20px);
}

.switch-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-main);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  outline: none;
  transition: all 0.15s ease;
  user-select: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

.btn-secondary {
  background: #FFFFFF;
  color: var(--text-secondary);
  border-color: var(--border);
}

.btn-secondary:hover {
  background: #F8FAFC;
  color: var(--text-main);
  border-color: #CBD5E1;
}

.btn-success {
  background: var(--success);
  color: #FFFFFF;
}

.btn-success:hover {
  background: #059669;
}

.btn-danger {
  background: var(--danger);
  color: #FFFFFF;
}

.btn-danger:hover {
  background: #DC2626;
}

.btn-sm {
  padding: 5px 11px;
  font-size: 0.78rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 11px 22px;
  font-size: 0.95rem;
  font-weight: 600;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ==========================================================================
   Provider Cards (Exact CRM Palettes)
   ========================================================================== */

.providers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
  margin-bottom: 22px;
}

.provider-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: 20px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.18s ease;
}

.provider-card:hover {
  box-shadow: var(--shadow-md);
}

/* Provider Theme Variants */
.provider-card.provider-anthropic {
  border-color: var(--anthropic-border);
}
.provider-card.provider-anthropic .provider-badge {
  background: var(--anthropic-bg);
  color: var(--anthropic-text);
  border: 1px solid var(--anthropic-border);
}

.provider-card.provider-openai {
  border-color: var(--openai-border);
}
.provider-card.provider-openai .provider-badge {
  background: var(--openai-bg);
  color: var(--openai-text);
  border: 1px solid var(--openai-border);
}

.provider-card.provider-deepseek {
  border-color: var(--deepseek-border);
}
.provider-card.provider-deepseek .provider-badge {
  background: var(--deepseek-bg);
  color: var(--deepseek-text);
  border: 1px solid var(--deepseek-border);
}

.provider-card.provider-telegram {
  border-color: var(--telegram-border);
}
.provider-card.provider-telegram .provider-badge {
  background: var(--telegram-bg);
  color: var(--telegram-text);
  border: 1px solid var(--telegram-border);
}

.provider-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.provider-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
}

.provider-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
}

.provider-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

/* ==========================================================================
   Tables & Data Presentation
   ========================================================================== */

.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #FFFFFF;
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.table th {
  background: #F8FAFC;
  color: var(--text-secondary);
  font-size: 0.74rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-main);
  font-size: 0.85rem;
  vertical-align: middle;
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr:hover td {
  background: #F8FAFC;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 9999px;
  font-size: 0.74rem;
  font-weight: 600;
}

.badge-new {
  background: #EFF6FF;
  color: #1D4ED8;
  border: 1px solid #BFDBFE;
}

.badge-in_progress {
  background: #FEF3C7;
  color: #B45309;
  border: 1px solid #FDE68A;
}

.badge-scheduled {
  background: #F3E8FF;
  color: #6B21A8;
  border: 1px solid #E9D5FF;
}

.badge-completed {
  background: #ECFDF5;
  color: #047857;
  border: 1px solid #A7F3D0;
}

.badge-cancelled {
  background: #F1F5F9;
  color: #64748B;
  border: 1px solid #CBD5E1;
}

.badge-urgent {
  background: #FEF2F2;
  color: #B91C1C;
  border: 1px solid #FECACA;
}

/* ==========================================================================
   Metrics Grid (Stats Tab)
   ========================================================================== */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.stat-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.stat-val {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ==========================================================================
   Modals with Blur Backdrop
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-backdrop.hidden {
  display: none !important;
}

.modal-content {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalSlide 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalSlide {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.35rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: var(--text-main);
  background: #F1F5F9;
}

.modal-body {
  padding: 22px 24px;
  overflow-y: auto;
}

.modal-footer {
  padding: 14px 24px;
  border-top: 1px solid var(--border);
  background: #F8FAFC;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ==========================================================================
   Toasts Notifications (CRM Pattern)
   ========================================================================== */

#toast-container {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 420px;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: toastSlide 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  transition: opacity 0.3s, transform 0.3s;
}

@keyframes toastSlide {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

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

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

.toast.toast-info {
  border-left: 4px solid var(--info);
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 2px;
}

.toast-message {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.toast-close {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-subtle);
  font-size: 1.1rem;
  line-height: 1;
  padding: 2px;
}

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

/* ==========================================================================
   Utility Classes & Tab Visibility
   ========================================================================== */

.hidden {
  display: none !important;
}

.tab-content {
  display: block;
  animation: fadeIn 0.15s ease-in;
}

.tab-content.hidden {
  display: none !important;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Login Card Center */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background-color: var(--bg-body);
}

.login-card {
  width: 100%;
  max-width: 440px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 34px 32px;
}

/* Knowledge Base Grid */
.kb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.kb-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
}

.kb-card:hover {
  border-color: #CBD5E1;
  box-shadow: var(--shadow-md);
}

/* Prompt Card */
.prompt-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-card);
}

.prompt-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  gap: 12px;
}

/* Responsive Overrides */
@media (max-width: 900px) {
  .app-body {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border);
    min-height: auto;
  }
  .sidebar-nav {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 6px;
  }
  .main-content {
    padding: 20px 16px;
  }
}