LittleFS mount OK, updated interface, upload to littlefs from browser

RotaxMonitor/data/style.css

@@ -1,7 +1,46 @@
+:root {
+    --primary-dark: #0a1929;
+    --primary-blue: #0144a8;
+    --accent-blue: #1e88e5;
+    --light-bg: #f5f7fa;
+    --border-color: #d0d6dd;
+    --text-dark: #1a1a1a;
+    --text-muted: #666666;
+}
+
 body {
-    font-family: Arial;
-    text-align: center;
-    margin-top: 40px;
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+    margin: 0;
+    padding: 0;
+    background-color: var(--light-bg);
+    color: var(--text-dark);
+}
+
+.page-header {
+    background: linear-gradient(135deg, var(--primary-dark) 0%, #1a3a52 100%);
+    color: white;
+    padding: 30px 20px;
+    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
+    margin-bottom: 30px;
+}
+
+.header-content {
+    max-width: 900px;
+    margin: 0 auto;
+    display: flex;
+    align-items: center;
+    gap: 20px;
+}
+
+.logo {
+    height: 50px;
+    width: auto;
+}
+
+.page-header h1 {
+    margin: 0;
+    font-size: 28px;
+    font-weight: 600;
 }
 
 table {
@@ -9,21 +48,136 @@ table {
     border-collapse: collapse;
     width: 100%;
     max-width: 900px;
+    background: white;
+    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
+    border-radius: 6px;
+    overflow: hidden;
 }
 
 th, td {
-    border: 1px solid #ccc;
-    padding: 10px;
-    font-size: 16px;
-    text-align: left;
+    border: 1px solid var(--border-color);
+    padding: 12px;
+    font-size: 14px;
+    text-align: center;
 }
 
 th {
-    background-color: #f4f4f4;
+    background-color: var(--primary-blue);
+    color: white;
+    font-weight: 600;
+}
+
+tr:hover {
+    background-color: #f9fbfc;
 }
 
 button {
     margin: 10px;
     padding: 10px 20px;
     font-size: 16px;
+    background-color: var(--primary-blue);
+    color: white;
+    border: none;
+    border-radius: 4px;
+    cursor: pointer;
+    transition: background-color 0.2s;
+}
+
+button:hover {
+    background-color: var(--accent-blue);
+}
+
+.upload-section {
+    margin: 30px auto 20px;
+    max-width: 900px;
+    text-align: left;
+    padding: 20px;
+    border: 1px solid var(--border-color);
+    border-radius: 6px;
+    background: white;
+    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
+}
+
+.upload-section h3 {
+    margin-top: 0;
+    margin-bottom: 8px;
+    color: var(--primary-blue);
+    font-size: 16px;
+}
+
+.upload-section p {
+    margin: 8px 0;
+    color: var(--text-muted);
+    font-size: 14px;
+}
+
+.upload-section input[type="file"] {
+    margin-top: 8px;
+    margin-bottom: 12px;
+}
+
+.upload-status {
+    margin-top: 10px;
+    font-size: 14px;
+    color: var(--text-muted);
+}
+
+.loading-indicator {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    gap: 8px;
+    margin: 0;
+    padding: 16px 20px;
+    font-size: 20px;
+    color: var(--primary-blue);
+    border-bottom: 1px solid var(--border-color);
+    background: white;
+    width: 100%;
+    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
+}
+
+.loading-indicator.hidden {
+    display: none;
+}
+
+.spinner {
+    width: 16px;
+    height: 16px;
+    border: 2px solid transparent;
+    border-top-color: var(--primary-blue);
+    border-radius: 50%;
+    animation: spin 0.8s linear infinite;
+}
+
+@keyframes spin {
+    from {
+        transform: rotate(0deg);
+    }
+    to {
+        transform: rotate(360deg);
+    }
+}
+
+/* Data section */
+div[style*="max-width: 900px"] {
+    background: white;
+    padding: 20px;
+    border-radius: 6px;
+    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
+    margin-bottom: 20px;
+}
+
+div[style*="max-width: 900px"] p {
+    margin: 8px 0;
+    font-size: 14px;
+}
+
+div[style*="max-width: 900px"] strong {
+    color: var(--primary-blue);
+}
+
+span {
+    color: var(--text-dark);
+}
 }