/* ==========================================================================
   DEV RESOURCE INTELLIGENCE — DESIGN SYSTEM
   Theme: Obsidian & Jade Intelligence (High-Density Dark Theme)
   ========================================================================== */

:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Dark Canvas & Surfaces */
  --bg-canvas: #090d12;
  --bg-header: #0f151c;
  --bg-surface: #141b24;
  --bg-surface-hover: #1a232f;
  --bg-surface-active: #202b3a;
  --bg-well: #0c1117;
  --bg-input: #0e141c;

  /* Hairline Borders */
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(255, 255, 255, 0.18);
  --border-focus: #10b981;

  /* Typography Colors */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #34d399;

  /* Category Accents */
  --accent-teal: #06b6d4;
  --accent-purple: #a855f7;
  --accent-amber: #f59e0b;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;

  /* Shadows & Glow */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.4), 0 12px 24px -10px rgba(0, 0, 0, 0.6);
  --shadow-drawer: -4px 0 24px rgba(0, 0, 0, 0.7);
  --glow-jade: 0 0 16px rgba(16, 185, 129, 0.2);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-canvas);
}
::-webkit-scrollbar-thumb {
  background: var(--border-default);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--border-hover);
}

/* ==========================================================================
   LAYOUT STRUCTURE
   ========================================================================== */
.app-layout {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
.app-header {
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-default);
  padding: 12px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(8px);
}

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

.brand-badge {
  display: flex;
  align-items: center;
  gap: 14px;
}

.radar-logo-pulse {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.2) 0%, rgba(6, 182, 212, 0.1) 100%);
  border: 1px solid rgba(16, 185, 129, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.radar-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

.pulse-ring {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1.5px solid rgba(16, 185, 129, 0.5);
  animation: radarPing 2.4s infinite cubic-bezier(0, 0, 0.2, 1);
}

@keyframes radarPing {
  0% { transform: scale(0.6); opacity: 0.9; }
  80%, 100% { transform: scale(1.6); opacity: 0; }
}

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

.brand-title {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-subtitle {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Header Center Status Strip */
.header-center {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-well);
  border: 1px solid var(--border-subtle);
  padding: 6px 14px;
  border-radius: 20px;
}

.status-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
}

.chip-label {
  color: var(--text-muted);
  font-weight: 500;
}

.chip-value {
  color: var(--text-secondary);
  font-weight: 600;
  font-family: var(--font-mono);
}

.chip-divider {
  width: 1px;
  height: 12px;
  background: var(--border-default);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ==========================================================================
   BUTTONS & BADGES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 7px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  border: 1px solid transparent;
  text-decoration: none;
}

.btn-icon {
  width: 15px;
  height: 15px;
}

.btn-primary {
  background: linear-gradient(135deg, #059669 0%, #10b981 100%);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
  box-shadow: var(--glow-jade);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-secondary);
  border-color: var(--border-default);
}

.btn-secondary:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  padding: 8px;
}

.btn-ghost:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.spinning {
  animation: spin 1s infinite linear;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 7px;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-emerald-subtle {
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.badge-amber-subtle {
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.badge-gray-subtle {
  background: rgba(148, 163, 184, 0.1);
  color: #94a3b8;
  border: 1px solid rgba(148, 163, 184, 0.2);
}

/* ==========================================================================
   SUMMARY SECTION & METRICS
   ========================================================================== */
.summary-section {
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  padding: 20px 28px 12px;
}

.metrics-grid {
  display: grid;
  grid-templateColumns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.metric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 10px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s ease;
}

.metric-card:hover {
  border-color: var(--border-hover);
}

.metric-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.metric-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.metric-icon-box {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.metric-icon-box svg {
  width: 15px;
  height: 15px;
}

.icon-jade { background: rgba(16, 185, 129, 0.12); color: var(--accent-emerald); }
.icon-cyan { background: rgba(6, 182, 212, 0.12); color: var(--accent-teal); }
.icon-amber { background: rgba(245, 158, 11, 0.12); color: var(--accent-amber); }
.icon-purple { background: rgba(168, 85, 247, 0.12); color: var(--accent-purple); }

.metric-value {
  font-size: 1.6rem;
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.metric-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Category Strip */
.category-strip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 4px;
  overflow-x: auto;
}

.category-strip-label {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  white-space: nowrap;
}

.category-pills {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cat-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.cat-pill:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.cat-pill.active {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.cat-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}
.dot-teal { background: var(--accent-teal); }
.dot-purple { background: var(--accent-purple); }
.dot-amber { background: var(--accent-amber); }
.dot-emerald { background: var(--accent-emerald); }

.cat-count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  opacity: 0.8;
}

/* ==========================================================================
   EXPLORER & TOOLBAR
   ========================================================================== */
.explorer-section {
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  padding: 12px 28px 40px;
  flex: 1;
}

.explorer-toolbar {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 10px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.search-box {
  flex: 1;
  min-width: 240px;
  max-width: 420px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  color: var(--text-muted);
}

.search-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: 6px;
  padding: 8px 32px 8px 36px;
  font-size: 0.84rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.15s ease;
  font-family: inherit;
}

.search-input:focus {
  border-color: var(--border-focus);
}

.clear-search-btn {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.8rem;
}

.filter-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.select-wrapper select {
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 0.8rem;
  font-family: inherit;
  outline: none;
  cursor: pointer;
}

.select-wrapper select:focus {
  border-color: var(--border-focus);
}

.toggle-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  color: var(--text-muted);
  padding: 7px 11px;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.toggle-btn svg {
  width: 13px;
  height: 13px;
}

.toggle-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.toggle-btn.active {
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.4);
  color: #34d399;
}

/* Feed Header */
.feed-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 0 4px;
}

.feed-subtext {
  font-size: 0.72rem;
  opacity: 0.8;
}

/* Resources Cards Grid */
.resources-feed {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.resource-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 8px;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all 0.15s ease;
  position: relative;
}

.resource-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-surface-hover);
}

.resource-card.bookmarked {
  border-left: 3px solid var(--accent-amber);
}

.card-top-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.resource-title {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.resource-title:hover {
  color: var(--text-accent);
}

.external-icon {
  width: 13px;
  height: 13px;
  opacity: 0.6;
}

.card-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.action-icon-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  padding: 5px;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.action-icon-btn svg {
  width: 16px;
  height: 16px;
}

.action-icon-btn:hover {
  background: var(--bg-surface-active);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

.action-icon-btn.active-bm {
  color: var(--accent-amber);
}

.action-icon-btn.active-rev {
  color: var(--accent-emerald);
}

.resource-description {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.card-bottom-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 6px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.74rem;
  color: var(--text-muted);
}

.card-meta-left {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.meta-item svg {
  width: 12px;
  height: 12px;
}

.relevance-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--bg-well);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-accent);
}

/* Empty State */
.empty-state {
  background: var(--bg-surface);
  border: 1px dashed var(--border-default);
  border-radius: 10px;
  padding: 50px 20px;
  text-align: center;
  color: var(--text-muted);
}

.empty-state-icon {
  width: 36px;
  height: 36px;
  margin-bottom: 12px;
  opacity: 0.4;
}

/* ==========================================================================
   DRAWERS & MODALS
   ========================================================================== */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 50;
  display: none;
  align-items: stretch;
  justify-content: flex-end;
}

.drawer-overlay.open {
  display: flex;
}

.drawer-panel {
  width: 100%;
  max-width: 520px;
  background: var(--bg-header);
  border-left: 1px solid var(--border-default);
  box-shadow: var(--shadow-drawer);
  display: flex;
  flex-direction: column;
  animation: slideInRight 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

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

.drawer-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.drawer-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.drawer-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 6px;
}

.drawer-close:hover {
  color: var(--text-primary);
}

.drawer-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
}

.form-input:focus {
  border-color: var(--border-focus);
}

.form-help {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.4;
}

.category-toggle-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-well);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 12px 14px;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.84rem;
  color: var(--text-primary);
  cursor: pointer;
}

.checkbox-row input {
  accent-color: var(--accent-emerald);
}

.drawer-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  margin-top: 20px;
}

/* Activity Logs List */
.activity-logs-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.log-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 0.8rem;
}

.log-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.log-status {
  font-weight: 700;
  font-size: 0.74rem;
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.log-time {
  color: var(--text-muted);
  font-size: 0.72rem;
}

.log-details {
  color: var(--text-secondary);
  line-height: 1.4;
}

.log-error {
  color: var(--accent-rose);
  margin-top: 4px;
  font-size: 0.74rem;
}

/* Modal Box */
.modal-box {
  width: 100%;
  max-width: 460px;
  background: var(--bg-header);
  border: 1px solid var(--border-default);
  border-radius: 12px;
  box-shadow: var(--shadow-drawer);
  margin: auto;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 0.82rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-card);
  animation: toastIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive Rules */
@media (max-width: 900px) {
  .app-header {
    flex-direction: column;
    align-items: stretch;
    padding: 14px 18px;
  }
  .header-center {
    justify-content: space-around;
  }
  .summary-section, .explorer-section {
    padding-left: 18px;
    padding-right: 18px;
  }
}