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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0d1117;
  color: #e6edf3;
  line-height: 1.5;
}

/* Login Screen */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: linear-gradient(135deg, #0d1117 0%, #161b22 50%, #1a1040 100%);
}

.login-card {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 12px;
  padding: 2rem;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  text-align: center;
}

.login-card h1 {
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.login-card > p {
  color: #8b949e;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
}

.login-card form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.error {
  color: #f85149;
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

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

.app-layout[hidden] {
  display: none;
}

/* Sidebar */
.sidebar {
  width: 220px;
  background: #161b22;
  border-right: 1px solid #30363d;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 1.25rem 1rem;
  border-bottom: 1px solid #30363d;
}

.sidebar-header h2 {
  font-size: 1.25rem;
  color: #8b5cf6;
}

.nav-links {
  list-style: none;
  padding: 0.5rem;
  flex: 1;
}

.nav-links a {
  display: block;
  padding: 0.5rem 1rem;
  color: #8b949e;
  text-decoration: none;
  border-radius: 6px;
  font-size: 0.875rem;
  transition: background 0.15s, color 0.15s;
}

.nav-links a.active,
.nav-links a:hover {
  background: rgba(139, 92, 246, 0.1);
  color: #e6edf3;
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid #30363d;
}

.btn-text {
  background: none;
  border: none;
  color: #8b949e;
  cursor: pointer;
  font-size: 0.875rem;
  padding: 0.25rem 0;
}

.btn-text:hover {
  color: #e6edf3;
}

/* Main Content */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 2rem;
}

.section h2 {
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

.section h3 {
  margin-bottom: 0.75rem;
  font-size: 1rem;
  color: #8b949e;
}

/* Buttons */
button,
.btn-sm {
  background: #8b5cf6;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  transition: background 0.15s;
}

button:hover {
  background: #7c3aed;
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

.btn-danger {
  background: #f85149;
}

.btn-danger:hover {
  background: #da3633;
}

.btn-icon {
  background: none;
  border: none;
  color: #8b949e;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.btn-icon:hover {
  color: #e6edf3;
  background: none;
}

/* Inputs */
input[type="text"],
input[type="password"],
select {
  background: #0d1117;
  border: 1px solid #30363d;
  color: #e6edf3;
  padding: 0.5rem;
  border-radius: 6px;
  font-size: 0.875rem;
  width: 100%;
  transition: border-color 0.15s;
}

input[type="text"]:focus,
input[type="password"]:focus,
select:focus {
  border-color: #8b5cf6;
  outline: none;
}

select {
  width: auto;
  min-width: 140px;
}

/* Drop Zone */
.drop-zone {
  border: 2px dashed #30363d;
  border-radius: 12px;
  padding: 3rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  margin-bottom: 1rem;
}

.drop-zone:hover {
  border-color: #8b5cf6;
}

.drop-zone.drag-over {
  border-color: #8b5cf6;
  background: rgba(139, 92, 246, 0.05);
}

.drop-zone p {
  color: #8b949e;
  font-size: 1rem;
}

.drop-zone-sub {
  font-size: 0.8rem !important;
  margin-top: 0.25rem;
}

/* Upload Options */
.upload-options {
  margin-bottom: 1.5rem;
  max-width: 400px;
}

#upload-results {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1.5rem;
}

#upload-results .success {
  color: #3fb950;
  margin-bottom: 0.5rem;
}

#upload-results p {
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
}

/* Bulk Ingest */
.bulk-ingest {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid #30363d;
}

.ingest-row {
  display: flex;
  gap: 0.5rem;
  max-width: 600px;
}

.ingest-row input {
  flex: 1;
}

#ingest-results {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1rem;
}

#ingest-results .success {
  color: #3fb950;
}

#ingest-results .error {
  color: #f85149;
}

/* Search Bar */
.search-bar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.search-bar input {
  flex: 1;
}

/* Document Table */
.doc-table {
  width: 100%;
  border-collapse: collapse;
}

.doc-table th,
.doc-table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid #30363d;
}

.doc-table th {
  color: #8b949e;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.doc-table tr:hover {
  background: #161b22;
}

.empty {
  color: #8b949e;
  text-align: center;
  padding: 2rem;
}

/* Tag Pill */
.tag-pill {
  display: inline-block;
  background: #30363d;
  color: #8b949e;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  margin: 2px;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal[hidden] {
  display: none;
}

.modal-content {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 12px;
  padding: 2rem;
  max-width: 900px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.modal-header h2 {
  margin-bottom: 0;
  font-size: 1.125rem;
  word-break: break-all;
}

.modal-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
  font-size: 0.8rem;
  color: #8b949e;
}

.modal-tags {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1rem;
  font-size: 0.875rem;
}

.modal-tags label {
  color: #8b949e;
  flex-shrink: 0;
}

.modal-tags input {
  flex: 1;
}

.doc-content {
  white-space: pre-wrap;
  font-family: 'SF Mono', Consolas, monospace;
  font-size: 0.875rem;
  background: #0d1117;
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
  max-height: 60vh;
  border: 1px solid #30363d;
  margin-bottom: 1rem;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
}

/* Settings */
.settings-group {
  margin-bottom: 2rem;
}

.settings-group h3 {
  margin-bottom: 1rem;
}

#stats-display {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 1rem;
}

#stats-display p {
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  color: #8b949e;
}

#stats-display strong {
  color: #e6edf3;
}

#password-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 400px;
}

/* FTS Highlights */
mark {
  background: rgba(139, 92, 246, 0.3);
  color: inherit;
  padding: 0 2px;
  border-radius: 2px;
}

.search-highlight mark {
  background: rgba(139, 92, 246, 0.3);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  z-index: 200;
  animation: fadeIn 0.3s;
  font-size: 0.875rem;
  font-weight: 500;
}

.toast.success {
  background: #3fb950;
  color: white;
}

.toast.error {
  background: #f85149;
  color: white;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 768px) {
  .app-layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    flex-direction: row;
    height: auto;
    border-right: none;
    border-bottom: 1px solid #30363d;
    align-items: center;
  }

  .sidebar-header {
    border-bottom: none;
    padding: 0.75rem 1rem;
  }

  .nav-links {
    display: flex;
    padding: 0.25rem;
    gap: 0.25rem;
  }

  .sidebar-footer {
    border-top: none;
    padding: 0.75rem 1rem;
    margin-left: auto;
  }

  .main-content {
    padding: 1rem;
  }

  .modal-content {
    width: 95%;
    padding: 1rem;
  }

  .doc-table th:nth-child(4),
  .doc-table td:nth-child(4),
  .doc-table th:nth-child(5),
  .doc-table td:nth-child(5) {
    display: none;
  }
}