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

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --text-primary: #c9d1d9;
  --text-secondary: #8b949e;
  --border-color: #30363d;
  --accent: #58a6ff;
  --accent-hover: #79c0ff;
  --success: #3fb950;
  --danger: #f85149;
  --warning: #d29922;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

header h1 {
  font-size: 1.5rem;
  color: var(--text-primary);
}

#auth-section {
  display: flex;
  align-items: center;
  gap: 1rem;
}

#user-name {
  color: var(--text-secondary);
}

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  text-decoration: none;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  transition: all 0.2s;
}

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

.btn-primary {
  background-color: var(--accent);
  border-color: var(--accent);
  color: white;
}

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

.btn-secondary {
  background-color: transparent;
}

.btn-danger {
  background-color: var(--danger);
  border-color: var(--danger);
  color: white;
}

.btn-danger:hover {
  background-color: #ff6b6b;
  border-color: #ff6b6b;
}

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.tab-btn {
  padding: 0.75rem 1.5rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.2s;
}

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

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-content {
  display: none;
}

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

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

.section-header h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.form-group input[type="text"],
.form-group input[type="file"],
.form-group input[type="datetime-local"],
.form-group textarea {
  width: 100%;
  padding: 0.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
}

.form-group input[type="file"] {
  padding: 0.25rem;
}

.form-group textarea {
  resize: vertical;
  font-family: "Monaco", "Menlo", "Ubuntu Mono", monospace;
}

.form-group input[type="checkbox"] {
  margin-right: 0.5rem;
}

.upload-form,
.document-form {
  background-color: var(--bg-secondary);
  padding: 1.5rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  margin-bottom: 2rem;
}

.images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.image-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
}

.image-card img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.image-card .image-info {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.image-card .image-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
}

.image-card .btn {
  flex: 1;
  text-align: center;
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
}

.documents-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.document-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1.5rem;
}

.document-card h3 {
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.document-card .doc-meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.document-card .doc-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.document-card .doc-link {
  font-size: 0.75rem;
  color: var(--accent);
  word-break: break-all;
}

.welcome {
  text-align: center;
  padding: 4rem 2rem;
}

.welcome h2 {
  margin-bottom: 1rem;
}

/* Modal styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  max-width: 800px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 0;
}

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

.modal-header h2 {
  margin: 0;
  font-size: 1.25rem;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s;
}

.modal-close:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.modal-content .document-form {
  margin: 0;
  border: none;
  border-radius: 0;
}

.message {
  padding: 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
}

.message.success {
  background-color: rgba(63, 185, 80, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
}

.message.error {
  background-color: rgba(248, 81, 73, 0.1);
  border: 1px solid var(--danger);
  color: var(--danger);
}