/* ============================================================
   CORTEXIUM AI DESIGN SYSTEM — Developer-First Cloud Agent UI
   Aesthetic: Architectural, Technical, Swiss Typography, Zero-Slop
   Signature: Carbon Black, Clean White, Hairline Borders, Flame Orange (#ff4500)
   ============================================================ */

:root {
  --bb-bg: #09090b;
  --bb-sidebar: #0d0d10;
  --bb-surface: #121216;
  --bb-surface-hover: #18181e;
  --bb-surface-active: #1f1f26;
  --bb-border: #23232a;
  --bb-border-subtle: #1a1a20;
  --bb-border-light: #2e2e38;
  --bb-border-focus: #ff4500;
  
  --bb-text: #f4f4f5;
  --bb-text-muted: #a1a1aa;
  --bb-text-dim: #71717a;
  
  --bb-orange: #ff4500;
  --bb-orange-hover: #e03e00;
  --bb-orange-subtle: rgba(255, 69, 0, 0.12);
  --bb-orange-border: rgba(255, 69, 0, 0.35);
  
  --bb-green: #10b981;
  --bb-green-subtle: rgba(16, 185, 129, 0.12);
  --bb-blue: #3b82f6;
  --bb-red: #ef4444;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Geist", "Inter", "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", Menlo, monospace;
}

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

body.cortexium-theme {
  font-family: var(--font-sans);
  background: var(--bb-bg);
  color: var(--bb-text);
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Base Workspace Layout */
.bb-workspace {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

/* ============ SIDEBAR ============ */
.bb-sidebar {
  width: 290px;
  background: var(--bb-sidebar);
  border-right: 1px solid var(--bb-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  user-select: none;
}

/* Brand Bar */
.bb-sidebar-brand {
  height: 56px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--bb-border);
}
.bb-brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #fff;
}
.bb-logo-icon {
  width: 20px;
  height: 20px;
  background: var(--bb-orange);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 900;
  color: #000;
}
.bb-brand-name {
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #fff;
}
.bb-brand-sub {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--bb-orange);
  background: var(--bb-orange-subtle);
  border: 1px solid var(--bb-orange-border);
  padding: 1px 5px;
  border-radius: 3px;
  margin-left: 4px;
}
.bb-back-link {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--bb-text-dim);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}
.bb-back-link:hover {
  color: var(--bb-text);
  background: var(--bb-surface);
  border-color: var(--bb-border);
}

/* Technical Navigation Tabs */
.bb-nav-tabs {
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  border-bottom: 1px solid var(--bb-border);
}
.bb-nav-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: none;
  border: 1px solid transparent;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--bb-text-muted);
  cursor: pointer;
  text-align: left;
  transition: all 0.15s ease;
}
.bb-nav-btn:hover {
  background: var(--bb-surface);
  color: var(--bb-text);
}
.bb-nav-btn.active {
  background: var(--bb-surface-active);
  color: #fff;
  border-color: var(--bb-border-light);
  font-weight: 600;
}
.bb-nav-btn.active .bb-nav-tag {
  background: var(--bb-orange);
  color: #000;
  font-weight: 700;
}
.bb-nav-tag {
  font-size: 9.5px;
  padding: 1px 5px;
  border-radius: 2px;
  background: var(--bb-surface-hover);
  color: var(--bb-text-dim);
}

/* Sessions History Section */
.bb-history-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 12px 10px;
}
.bb-btn-new-session {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--bb-surface);
  border: 1px solid var(--bb-border);
  color: var(--bb-text);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 4px;
  cursor: pointer;
  margin-bottom: 14px;
  transition: all 0.15s ease;
}
.bb-btn-new-session:hover {
  background: var(--bb-surface-hover);
  border-color: var(--bb-orange);
  color: #fff;
}
.bb-section-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--bb-text-dim);
  text-transform: uppercase;
  padding: 0 4px 8px;
}
.bb-session-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.bb-session-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-radius: 4px;
  font-size: 12.5px;
  color: var(--bb-text-muted);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.12s ease;
}
.bb-session-item:hover {
  background: var(--bb-surface);
  color: var(--bb-text);
}
.bb-session-item.active {
  background: var(--bb-surface);
  color: #fff;
  border-color: var(--bb-border-light);
  font-weight: 500;
}
.bb-session-item .del-btn {
  opacity: 0;
  background: none;
  border: none;
  color: var(--bb-text-dim);
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  padding: 2px 4px;
}
.bb-session-item:hover .del-btn {
  opacity: 1;
}
.bb-session-item .del-btn:hover {
  color: var(--bb-red);
}

/* Sidebar Footer Telemetry */
.bb-sidebar-footer {
  padding: 12px 14px;
  border-top: 1px solid var(--bb-border);
  background: #0a0a0d;
}
.bb-meta-grid {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--bb-text-dim);
}
.bb-meta-row {
  display: flex;
  justify-content: space-between;
}
.bb-status-green {
  color: var(--bb-green);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.bb-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--bb-green);
  display: inline-block;
}

/* ============ MAIN AREA ============ */
.bb-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bb-bg);
  overflow: hidden;
}

/* Technical Session HUD Topbar */
.bb-topbar {
  height: 56px;
  border-bottom: 1px solid var(--bb-border);
  background: var(--bb-sidebar);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-shrink: 0;
}
.bb-topbar-left {
  display: flex;
  align-items: center;
  gap: 14px;
}
.bb-session-title {
  font-size: 13.5px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 320px;
}
.bb-badge-tech {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 3px;
  background: var(--bb-surface);
  border: 1px solid var(--bb-border);
  color: var(--bb-text-muted);
}

.bb-topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.bb-model-picker {
  background: var(--bb-surface);
  border: 1px solid var(--bb-border);
  color: var(--bb-text);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 4px;
  outline: none;
  cursor: pointer;
  transition: border-color 0.15s;
}
.bb-model-picker:hover, .bb-model-picker:focus {
  border-color: var(--bb-orange);
}
.bb-runtime-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--bb-orange);
  background: var(--bb-orange-subtle);
  border: 1px solid var(--bb-orange-border);
  padding: 4px 9px;
  border-radius: 3px;
}
.bb-runtime-indicator .bb-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--bb-orange);
  box-shadow: 0 0 6px var(--bb-orange);
}

/* Views Management */
.bb-view {
  flex: 1;
  display: none;
  flex-direction: column;
  overflow: hidden;
}
.bb-view.active {
  display: flex;
}

/* ============ VIEW 1: CHAT FEED ============ */
.bb-feed-container {
  flex: 1;
  overflow-y: auto;
  padding: 24px 0;
  display: flex;
  flex-direction: column;
}
.bb-messages-wrap {
  max-width: 860px;
  width: 100%;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Empty State Terminal Card */
.bb-empty-card {
  border: 1px solid var(--bb-border);
  background: var(--bb-surface);
  border-radius: 6px;
  padding: 28px;
  margin: 30px auto;
  max-width: 680px;
  width: 100%;
  font-family: var(--font-mono);
}
.bb-empty-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--bb-orange);
  margin-bottom: 12px;
  font-weight: 600;
}
.bb-empty-title {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.bb-empty-desc {
  font-family: var(--font-sans);
  font-size: 13.5px;
  color: var(--bb-text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}
.bb-quick-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.bb-chip {
  background: #09090b;
  border: 1px solid var(--bb-border);
  color: var(--bb-text-muted);
  font-family: var(--font-mono);
  font-size: 11.5px;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.bb-chip:hover {
  background: var(--bb-surface-hover);
  border-color: var(--bb-orange);
  color: #fff;
}

/* Message Block */
.bb-msg-block {
  border: 1px solid var(--bb-border);
  background: var(--bb-surface);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color 0.15s;
}
.bb-msg-block.user-block {
  border-color: var(--bb-border-light);
  background: #101014;
}
.bb-msg-block.ai-block {
  border-color: var(--bb-border);
  background: #0d0d10;
}
.bb-msg-header {
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--bb-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
}
.bb-msg-sender {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}
.bb-msg-sender.user { color: var(--bb-text-muted); }
.bb-msg-sender.ai { color: var(--bb-orange); }

.bb-msg-time {
  color: var(--bb-text-dim);
}
.bb-msg-content {
  padding: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--bb-text);
  white-space: pre-wrap;
  word-wrap: break-word;
}
.bb-msg-content code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  background: #17171c;
  border: 1px solid var(--bb-border);
  padding: 2px 5px;
  border-radius: 3px;
  color: #f1f0ec;
}
.bb-msg-content pre {
  background: #060608;
  border: 1px solid var(--bb-border);
  border-radius: 5px;
  padding: 14px;
  margin: 12px 0;
  overflow-x: auto;
}
.bb-msg-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: #e5e4e2;
}
.typing-cursor::after {
  content: " █";
  color: var(--bb-orange);
  animation: blink 0.9s infinite;
}
@keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }

/* Composer Bar */
.bb-composer-wrap {
  padding: 16px 20px 24px;
  background: var(--bb-sidebar);
  border-top: 1px solid var(--bb-border);
  flex-shrink: 0;
}
.bb-composer-box {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
  background: var(--bb-bg);
  border: 1px solid var(--bb-border-light);
  border-radius: 6px;
  padding: 10px 14px;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.bb-composer-box:focus-within {
  border-color: var(--bb-orange);
  box-shadow: 0 0 0 1px var(--bb-orange-subtle);
}
.bb-prompt-indicator {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--bb-orange);
  padding-bottom: 7px;
  user-select: none;
}
.bb-textarea {
  flex: 1;
  background: none;
  border: none;
  color: #fff;
  font-size: 14px;
  font-family: inherit;
  resize: none;
  min-height: 24px;
  max-height: 180px;
  outline: none;
  line-height: 1.6;
}
.bb-textarea::placeholder {
  color: var(--bb-text-dim);
}
.bb-send-btn {
  background: var(--bb-orange);
  color: #000;
  border: none;
  border-radius: 4px;
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 0.15s;
}
.bb-send-btn:hover {
  background: var(--bb-orange-hover);
}
.bb-send-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ============ VIEW 2: AUTONOMOUS TASKS 24/7 ============ */
.bb-container-view {
  flex: 1;
  overflow-y: auto;
  padding: 28px 24px;
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
}
.bb-view-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--bb-border);
  padding-bottom: 18px;
}
.bb-view-title h2 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}
.bb-view-title p {
  font-size: 13px;
  color: var(--bb-text-muted);
}
.bb-btn-action-primary {
  background: var(--bb-orange);
  color: #000;
  border: none;
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.15s;
}
.bb-btn-action-primary:hover {
  background: var(--bb-orange-hover);
}

/* Task Form Drawer */
.bb-form-drawer {
  background: var(--bb-surface);
  border: 1px solid var(--bb-border-light);
  border-radius: 6px;
  padding: 20px;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.bb-form-drawer h3 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  font-family: var(--font-mono);
}
.bb-input {
  background: #09090b;
  border: 1px solid var(--bb-border);
  color: #fff;
  font-size: 13.5px;
  padding: 9px 12px;
  border-radius: 4px;
  outline: none;
  font-family: inherit;
  transition: border-color 0.15s;
}
.bb-input:focus {
  border-color: var(--bb-orange);
}

/* Tasks Grid */
.bb-tasks-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.bb-task-row {
  background: var(--bb-surface);
  border: 1px solid var(--bb-border);
  border-radius: 6px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.15s;
}
.bb-task-row:hover {
  border-color: var(--bb-border-light);
}
.bb-task-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.bb-task-title {
  font-size: 14.5px;
  font-weight: 700;
  color: #fff;
}
.bb-status-pill {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 3px;
  text-transform: uppercase;
}
.bb-status-pill.success {
  background: var(--bb-green-subtle);
  color: var(--bb-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}
.bb-status-pill.running {
  background: var(--bb-orange-subtle);
  color: var(--bb-orange);
  border: 1px solid var(--bb-orange-border);
}
.bb-status-pill.idle {
  background: rgba(255, 255, 255, 0.05);
  color: var(--bb-text-muted);
  border: 1px solid var(--bb-border);
}
.bb-status-pill.error {
  background: rgba(239, 68, 68, 0.12);
  color: var(--bb-red);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.bb-task-prompt {
  background: #09090b;
  border: 1px solid var(--bb-border-subtle);
  padding: 10px 12px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--bb-text-muted);
  line-height: 1.5;
}
.bb-task-result {
  font-size: 12.5px;
  color: var(--bb-text-muted);
  padding-left: 10px;
  border-left: 2px solid var(--bb-orange);
}
.bb-task-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--bb-border-subtle);
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--bb-text-dim);
}
.bb-btn-mini {
  background: #09090b;
  border: 1px solid var(--bb-border);
  color: var(--bb-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 9px;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.15s;
}
.bb-btn-mini:hover {
  border-color: var(--bb-orange);
  color: #fff;
}
.bb-btn-mini.danger:hover {
  border-color: var(--bb-red);
  color: var(--bb-red);
}

/* Restrained workspace motion */
@keyframes cx-panel-in {
  from { opacity: 0; transform: translateY(7px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes cx-pulse-soft {
  0%, 100% { opacity: .7; }
  50% { opacity: 1; }
}
.bb-sidebar-brand { animation: cx-panel-in .35s ease-out both; }
.bb-topbar { animation: cx-panel-in .4s .04s ease-out both; }
.bb-composer-box { transition: border-color .18s ease, box-shadow .18s ease; }
.bb-composer-box:focus-within { border-color: var(--bb-orange); box-shadow: 0 0 0 2px var(--bb-orange-subtle); }
.bb-runtime-indicator .bb-pulse { animation: cx-pulse-soft 2s ease-in-out infinite; }
.bb-nav-btn, .bb-btn-action-primary, .bb-btn-mini { transition: color .15s ease, background .15s ease, border-color .15s ease, transform .15s ease; }
.bb-btn-action-primary:hover { transform: translateY(-1px); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}

.bb-task-actions { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.bb-btn-mini.btn-run-now {
  display: inline-flex; align-items: center; gap: 7px; padding: 6px 10px;
  color: #ffd2c2; border-color: rgba(255, 69, 0, .35); background: rgba(255, 69, 0, .09);
  font-weight: 700; letter-spacing: .035em;
}
.bb-btn-mini.btn-run-now:hover { background: rgba(255,69,0,.18); border-color: var(--bb-orange); color: #fff; }
.bb-btn-mini.btn-run-now:disabled { opacity: .65; cursor: wait; }
.bb-btn-mini.btn-run-now .run-icon { color: var(--bb-orange); font-size: 12px; }
.bb-btn-mini.btn-run-now.is-running .run-icon { animation: cx-pulse-soft 1s ease-in-out infinite; }
.bb-task-feedback {
  display: none; border-top: 1px solid var(--bb-border-subtle); padding: 9px 2px 0;
  color: var(--bb-green); font: 11px/1.5 var(--font-mono);
}
.bb-task-feedback:not(:empty) { display: block; animation: cx-panel-in .2s ease-out both; }
.bb-task-feedback.is-error { color: #ff7b72; }
.bb-task-confirm {
  display: flex; align-items: center; justify-content: flex-end; gap: 7px;
  border-top: 1px solid var(--bb-border-subtle); padding: 9px 2px 0;
  color: var(--bb-text-muted, #9a9a9a); font: 11px/1.4 var(--font-mono);
}
.bb-task-confirm[hidden] { display: none; }
.bb-task-row.is-removing { opacity: 0; transform: translateY(-4px); transition: opacity .18s ease, transform .18s ease; }
.bb-btn-mini:disabled { opacity: .55; cursor: wait; }
@media (max-width: 760px) {
  .bb-task-footer { align-items: flex-start; flex-direction: column; gap: 10px; }
  .bb-task-actions { width: 100%; flex-wrap: wrap; }
  .bb-task-actions .btn-run-now { margin-right: auto; }
}

/* Activities Log Table */
.bb-activities-table {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 12px;
}
.bb-activity-row {
  background: #0d0d10;
  border: 1px solid var(--bb-border-subtle);
  padding: 8px 12px;
  border-radius: 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
}

/* ============ VIEW 3: MEMORY STORE ============ */
.bb-memory-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.bb-memory-item {
  background: var(--bb-surface);
  border: 1px solid var(--bb-border);
  border-radius: 4px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.bb-category-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--bb-orange);
  background: var(--bb-orange-subtle);
  border: 1px solid var(--bb-orange-border);
  padding: 2px 6px;
  border-radius: 2px;
  margin-right: 10px;
}