/* MemoDeep — PWA Styles */
:root {
  --bg-primary: #020408;
  --bg-card: #0f172a;
  --bg-hover: #1e293b;
  --border: #1e293b;
  --border-hover: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #0ea5e9;
  --accent-hover: #0284c7;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --kimi: #7dd3fc;
  --claude: #fbbf24;
  --gpt: #86efac;
  --gemini: #c4b5fd;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-secondary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.app-header .brand-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--success));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.app-header h1 {
  font-size: 18px;
  color: var(--text-primary);
  font-weight: 700;
}

.app-header .plan-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--bg-hover);
  color: var(--accent);
  font-weight: 600;
}

/* Nav */
.app-nav {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.app-nav button {
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.15s;
}

.app-nav button:hover {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.app-nav button.active {
  background: var(--bg-hover);
  color: var(--accent);
  border-color: var(--border-hover);
}

/* Content */
.app-content {
  flex: 1;
  padding: 16px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  transition: border-color 0.2s;
}

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

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Thread items */
.thread-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all 0.15s;
}

.thread-item:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
}

.thread-avatar {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.thread-avatar.kimi { background: #1e3a5f; }
.thread-avatar.claude { background: #3f2e18; }
.thread-avatar.gpt { background: #1a2e1a; }
.thread-avatar.gemini { background: #2e1a3e; }

.thread-info { flex: 1; min-width: 0; }

.thread-title {
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.thread-meta {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 3px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}

.badge-verified {
  background: #052e16;
  color: var(--success);
  border: 1px solid #166534;
}

.badge-pending {
  background: #3f2e18;
  color: var(--warning);
  border: 1px solid #92400e;
}

.badge-soberano {
  background: #052e16;
  color: var(--success);
}

.badge-derivado {
  background: #1e3a5f;
  color: var(--kimi);
}

/* Buttons */
.btn {
  padding: 10px 18px;
  border-radius: 8px;
  border: none;
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

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

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-hover);
  color: var(--text-muted);
}

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

.btn-sm { padding: 6px 12px; font-size: 12px; }

/* Forms */
input, textarea, select {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.15s;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}

/* Memory blocks in thread view */
.memory-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 12px;
  position: relative;
}

.memory-block.human { border-left: 3px solid var(--accent); }
.memory-block.ai { border-left: 3px solid var(--success); }

.memory-block-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
}

.memory-block-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.memory-block-label.human { color: var(--accent); }
.memory-block-label.ai { color: var(--success); }

.memory-block-time {
  font-size: 11px;
  color: var(--text-dim);
}

.memory-block-content {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.memory-block-footer {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.meta-chip {
  padding: 2px 8px;
  background: var(--bg-hover);
  border-radius: 4px;
  font-size: 11px;
  color: var(--text-muted);
  font-family: 'SF Mono', monospace;
}

/* Hash display */
.hash-line {
  font-family: 'SF Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  background: var(--bg-primary);
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  word-break: break-all;
}

/* Sync badge */
.sync-badge {
  position: fixed;
  bottom: 16px;
  right: 16px;
  background: #052e16;
  color: var(--success);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid #166534;
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 1000;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-dim);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

/* Responsive */
@media (max-width: 640px) {
  .app-header h1 { font-size: 16px; }
  .app-content { padding: 12px; }
  .thread-item { padding: 12px; }
  .thread-avatar { width: 36px; height: 36px; font-size: 16px; }
  .btn { padding: 8px 14px; font-size: 13px; }
}

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

/* Selection */
::selection {
  background: rgba(14, 165, 233, 0.3);
  color: var(--text-primary);
}