/* ==============================================================================
   REVENUECAT-INSPIRED CLEAN DESIGN SYSTEM (from DESIGN.md)
   ============================================================================== */

:root {
  /* Colors from DESIGN.md */
  --color-periwinkle-signal: #576cdb;
  --color-deep-indigo: #1f1f47;
  --color-storm-violet: #3d3d5c;
  --color-slate: #575775;
  --color-fog: #6c7693;
  --color-ash: #84849a;
  --color-midnight-ink: #171a1c;
  --color-cloud: #f9f9fb;
  --color-paper: #ffffff;
  --color-mist: #eaedf6;
  --color-haze: #d1d6e1;
  --color-bone: #e3e6e8;
  --color-lilac-wash: #d6dbf5;
  --color-periwinkle-mist: #c1c9f6;
  --color-sky-tint: #abb6ed;
  --color-coral-ember: #f25a5a;
  --color-coral-blush: #f7d4d4;
  --color-mint-whisper: #a6f2d2;
  --color-mint-veil: #c1f6e0;

  /* Typography */
  --font-display: 'Space Grotesk', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Shapes & Radii */
  --radius-cards: 16px;
  --radius-buttons: 9999px;
  --radius-chips: 9999px;
  --radius-panels: 24px;

  /* Shadows - Violet Ambient Tint from DESIGN.md */
  --shadow-sm: rgba(73, 46, 107, 0.04) 0px 2px 8px 0px;
  --shadow-md: rgba(73, 46, 107, 0.08) 0px 3px 16px 0px;
  --shadow-lg: rgba(71, 92, 133, 0.12) 0px 4px 20px 0px, rgba(144, 138, 208, 0.06) 0px 30px 60px 0px;

  /* Spacing */
  --spacing-unit: 4px;
  --spacing-16: 16px;
  --spacing-24: 24px;
  --spacing-32: 32px;
}

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

body {
  background-color: var(--color-cloud);
  color: var(--color-midnight-ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

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

/* Sidebar Navigation */
.sidebar {
  width: 270px;
  background-color: var(--color-paper);
  border-right: 1px solid var(--color-mist);
  display: flex;
  flex-direction: column;
  padding: 2rem 1.25rem;
  flex-shrink: 0;
}

.brand {
  margin-bottom: 2.25rem;
  padding: 0 0.5rem;
}

.brand-badge {
  display: inline-block;
  background-color: var(--color-cloud);
  color: var(--color-periwinkle-signal);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-chips);
  border: 1px solid var(--color-mist);
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
}

.brand h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--color-deep-indigo);
  letter-spacing: -0.03em;
}

.brand-sub {
  font-size: 0.82rem;
  color: var(--color-fog);
  margin-top: 0.3rem;
}

.brand-sub strong {
  color: var(--color-deep-indigo);
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: transparent;
  color: var(--color-storm-violet);
  border: 1px solid transparent;
  border-radius: var(--radius-buttons);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
}

.nav-item .icon {
  font-size: 1rem;
  opacity: 0.85;
}

.nav-item:hover {
  background-color: var(--color-cloud);
  color: var(--color-deep-indigo);
}

.nav-item.active {
  background-color: var(--color-cloud);
  color: var(--color-periwinkle-signal);
  font-weight: 600;
  border-color: var(--color-mist);
}

.server-status {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  background: var(--color-cloud);
  border-radius: var(--radius-cards);
  border: 1px solid var(--color-mist);
  margin-top: 1.5rem;
}

.status-indicator.online {
  width: 8px;
  height: 8px;
  background: #10B981;
  border-radius: 50%;
}

.status-title {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-deep-indigo);
}

.status-detail {
  font-size: 0.72rem;
  color: var(--color-fog);
}

/* Main Content Area */
.main-content {
  flex: 1;
  padding: 2.5rem 3.5rem;
  overflow-y: auto;
  max-height: 100vh;
}

/* Header */
.top-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--color-mist);
  padding-bottom: 1.75rem;
}

.top-header h1 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 400;
  letter-spacing: -0.04em;
  color: var(--color-deep-indigo);
  line-height: 1.15;
}

.top-header .subtitle {
  font-size: 0.95rem;
  color: var(--color-fog);
  margin-top: 0.4rem;
  font-weight: 400;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-paper);
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-chips);
  border: 1px solid var(--color-mist);
  font-size: 0.85rem;
  color: var(--color-storm-violet);
  box-shadow: var(--shadow-sm);
}

.dot-green {
  width: 7px;
  height: 7px;
  background: #10B981;
  border-radius: 50%;
}

.btn-outline {
  padding: 0.55rem 1.25rem;
  border: 1px solid var(--color-mist);
  color: var(--color-deep-indigo);
  background: var(--color-paper);
  font-weight: 500;
  font-size: 0.85rem;
  text-decoration: none;
  border-radius: var(--radius-buttons);
  transition: all 0.15s;
  box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
  border-color: var(--color-periwinkle-signal);
  color: var(--color-periwinkle-signal);
}

/* Tabs */
.tab-pane {
  display: none;
}

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

/* Standard Clean Card (Uniform White, 16px Radius, 1px Mist Border, No colored border-left) */
.card-box {
  background: var(--color-paper);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-cards);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
}

.card-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.75rem;
}

.card-header-bar h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--color-deep-indigo);
  letter-spacing: -0.02em;
}

/* Stats Cards (4 Columns, Pure Clean White, No colored border-left) */
.stats-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--color-paper);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-cards);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.stat-icon {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  opacity: 0.85;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 500;
  color: var(--color-deep-indigo);
  letter-spacing: -0.04em;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-fog);
  margin-top: 0.35rem;
}

/* Period Filter Buttons */
.period-filter-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.filter-label {
  font-size: 0.82rem;
  color: var(--color-fog);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.period-buttons {
  display: flex;
  background: var(--color-cloud);
  padding: 0.25rem;
  border-radius: var(--radius-buttons);
  border: 1px solid var(--color-mist);
  gap: 0.25rem;
}

.btn-period {
  padding: 0.4rem 0.9rem;
  border: none;
  background: transparent;
  color: var(--color-storm-violet);
  font-size: 0.8rem;
  font-weight: 500;
  border-radius: var(--radius-buttons);
  cursor: pointer;
  transition: all 0.15s;
}

.btn-period.active {
  background: var(--color-paper);
  color: var(--color-deep-indigo);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* Chat Simulator Grid */
.chat-container-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 2rem;
}

.chat-box-card {
  background: var(--color-paper);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-cards);
  display: flex;
  flex-direction: column;
  height: 700px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.chat-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-mist);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-paper);
}

.chat-user-info {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.avatar {
  width: 38px;
  height: 38px;
  background: var(--color-periwinkle-signal);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.85rem;
}

.badge-verified {
  display: inline-block;
  background: var(--color-cloud);
  color: var(--color-deep-indigo);
  border: 1px solid var(--color-mist);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-chips);
  margin-left: 0.5rem;
}

.takeover-toggle {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.takeover-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-storm-violet);
}

.switch {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 20px;
}

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

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--color-haze);
  transition: .25s;
  border-radius: 20px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .25s;
  border-radius: 50%;
}

input:checked + .slider { background-color: var(--color-periwinkle-signal); }
input:checked + .slider:before { transform: translateX(18px); }

.chat-messages {
  flex: 1;
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: #ffffff;
}

/* Chat Bubbles (Clean, No Colored Side Border) */
.msg-bubble {
  max-width: 80%;
  padding: 0.95rem 1.25rem;
  border-radius: var(--radius-cards);
  line-height: 1.55;
  font-size: 0.92rem;
}

.msg-bubble.assistant {
  align-self: flex-start;
  background: var(--color-cloud);
  border: 1px solid var(--color-mist);
  color: var(--color-deep-indigo);
  border-top-left-radius: 4px;
}

.msg-bubble.user {
  align-self: flex-end;
  background: var(--color-periwinkle-signal);
  color: #ffffff;
  font-weight: 400;
  border-top-right-radius: 4px;
}

.msg-author {
  font-size: 0.75rem;
  color: var(--color-periwinkle-signal);
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.msg-bubble.user .msg-author {
  color: rgba(255,255,255,0.85);
}

.msg-time {
  display: block;
  font-size: 0.7rem;
  color: var(--color-fog);
  margin-top: 0.5rem;
  text-align: right;
}

.msg-bubble.user .msg-time {
  color: rgba(255,255,255,0.7);
}

.chat-input-bar {
  padding: 1rem 1.5rem;
  display: flex;
  gap: 0.75rem;
  background: var(--color-paper);
  border-top: 1px solid var(--color-mist);
}

.chat-input-bar input {
  flex: 1;
  padding: 0.85rem 1.25rem;
  background: var(--color-cloud);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-buttons);
  color: var(--color-deep-indigo);
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.15s;
}

.chat-input-bar input:focus {
  border-color: var(--color-periwinkle-signal);
  background: #ffffff;
}

/* Primary Pill Button from DESIGN.md (9999px radius, #576cdb, no visible border) */
.btn-send, .btn-refresh, .btn-add-triplet, .btn-action-primary {
  padding: 0.75rem 1.5rem;
  background: var(--color-periwinkle-signal);
  color: #ffffff;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.88rem;
  border: none;
  border-radius: var(--radius-buttons);
  cursor: pointer;
  transition: background-color 0.15s;
}

.btn-send:hover, .btn-refresh:hover, .btn-add-triplet:hover, .btn-action-primary:hover {
  background: #4659be;
}

.quick-prompts {
  padding: 0.85rem 1.5rem;
  background: var(--color-cloud);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  border-top: 1px solid var(--color-mist);
  font-size: 0.8rem;
  color: var(--color-slate);
}

.chip-prompt {
  padding: 0.4rem 0.85rem;
  background: var(--color-paper);
  color: var(--color-deep-indigo);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-chips);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 500;
  transition: all 0.15s;
}

.chip-prompt:hover {
  border-color: var(--color-periwinkle-signal);
  color: var(--color-periwinkle-signal);
}

/* RAG Inspector */
.rag-inspector-card {
  background: var(--color-paper);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-cards);
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  height: 700px;
  overflow-y: auto;
}

.inspector-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-mist);
  padding-bottom: 1rem;
}

.inspector-header h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--color-deep-indigo);
}

.badge-lean {
  background: var(--color-cloud);
  color: var(--color-periwinkle-signal);
  border: 1px solid var(--color-mist);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-chips);
}

.inspector-section {
  margin-bottom: 1.5rem;
}

.inspector-section h4 {
  font-size: 0.78rem;
  color: var(--color-fog);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.pill-intent {
  display: inline-block;
  background: var(--color-cloud);
  color: var(--color-deep-indigo);
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-chips);
  font-weight: 500;
  font-size: 0.82rem;
  border: 1px solid var(--color-mist);
}

.triplet-feed {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

/* Triplet Item (Clean, No Colored Side Border) */
.triplet-item {
  background: var(--color-cloud);
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--color-mist);
}

.t-sub {
  font-size: 0.75rem;
  color: var(--color-periwinkle-signal);
  font-weight: 600;
}

.t-obj {
  font-size: 0.85rem;
  color: var(--color-storm-violet);
  margin-top: 0.3rem;
  line-height: 1.45;
}

.invoice-mini-preview {
  background: var(--color-cloud);
  border: 1px solid var(--color-mist);
  padding: 1.25rem;
  border-radius: 12px;
  text-align: left;
}

/* Data Tables */
.search-bar-wrap input {
  width: 100%;
  padding: 0.85rem 1.25rem;
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-buttons);
  background: var(--color-cloud);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  outline: none;
}

.search-bar-wrap input:focus {
  border-color: var(--color-periwinkle-signal);
  background: #ffffff;
}

.table-responsive {
  overflow-x: auto;
}

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

.data-table th {
  background: var(--color-cloud);
  padding: 0.85rem 1rem;
  font-size: 0.75rem;
  color: var(--color-fog);
  border-bottom: 1px solid var(--color-mist);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.data-table td {
  padding: 1rem;
  font-size: 0.88rem;
  border-bottom: 1px solid var(--color-mist);
  color: var(--color-storm-violet);
}

.data-table tr:hover td {
  background: var(--color-cloud);
}

.pill-channel, .pill-category {
  display: inline-block;
  background: var(--color-cloud);
  color: var(--color-storm-violet);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-chips);
  border: 1px solid var(--color-mist);
  font-size: 0.72rem;
  font-weight: 500;
}

.btn-del {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  opacity: 0.7;
}

.btn-del:hover {
  opacity: 1;
}

/* Memory Network Visualizer (Clean, No Colored Side Border) */
.memory-canvas-container {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.network-visualizer {
  background: var(--color-cloud);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-cards);
  padding: 1.5rem;
  min-height: 480px;
}

.nodes-cloud-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.85rem;
}

.node-chip {
  background: var(--color-paper);
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--color-mist);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s;
}

.node-chip:hover {
  border-color: var(--color-periwinkle-signal);
  transform: translateY(-1px);
}

.memory-sidebar-detail {
  background: var(--color-cloud);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-cards);
  padding: 1.5rem;
}

/* Ingest Studio */
.ingest-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1.5rem;
}

.ingest-input-card, .ingest-preview-card {
  background: var(--color-cloud);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-cards);
  padding: 1.5rem;
}

.ingest-input-card textarea {
  width: 100%;
  padding: 1rem;
  border: 1px solid var(--color-mist);
  border-radius: 12px;
  background: var(--color-paper);
  color: var(--color-deep-indigo);
  font-size: 0.9rem;
  outline: none;
  resize: vertical;
  margin-top: 0.75rem;
}

.ingest-input-card textarea:focus {
  border-color: var(--color-periwinkle-signal);
}

/* Providers Matrix (Clean, No Colored Side Border) */
.providers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.provider-card {
  background: var(--color-paper);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-cards);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.status-badge-green {
  background: var(--color-cloud);
  color: #065F46;
  border: 1px solid var(--color-mist);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-chips);
}

.graph-stats-chip {
  background: var(--color-cloud);
  color: var(--color-deep-indigo);
  border: 1px solid var(--color-mist);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-chips);
}

/* WhatsApp Hub */
.whatsapp-hub-content {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 2.5rem;
}

.qr-display-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--color-cloud);
  padding: 2rem;
  border-radius: var(--radius-cards);
  border: 1px solid var(--color-mist);
}

.qr-wrapper img {
  width: 250px;
  height: 250px;
  border-radius: 12px;
  border: 1px solid var(--color-mist);
  background: #fff;
  padding: 6px;
}

.qr-status-badge {
  margin-top: 1.25rem;
  padding: 0.5rem 1rem;
  background: var(--color-paper);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-chips);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-deep-indigo);
  box-shadow: var(--shadow-sm);
}

.step-list {
  margin: 1rem 0 1.75rem 1.5rem;
  line-height: 1.85;
  color: var(--color-storm-violet);
}

.phone-config-box {
  background: var(--color-cloud);
  padding: 1.5rem;
  border-radius: var(--radius-cards);
  border: 1px solid var(--color-mist);
}

.phone-tag {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--color-deep-indigo);
  letter-spacing: -0.02em;
  margin: 0.4rem 0;
}

/* Inner Layouts */
.analytics-charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.card-box-inner {
  background: var(--color-cloud);
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-cards);
  padding: 1.5rem;
}

.card-box-inner h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--color-deep-indigo);
}

.breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--color-paper);
  border-radius: 12px;
  border: 1px solid var(--color-mist);
}

.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.text-sm { font-size: 0.85rem; }
.text-muted { color: var(--color-fog); }