fix: Mobile-Layout — Tabs scrollen, kein horizontaler Overflow

- html/body: overflow-x: hidden verhindert seitlichen Scroll
- Tabs: overflow-x: auto + white-space: nowrap + flex-shrink: 0
  → horizontal scrollbar-frei auf Handy
- Header: min-width: 0, flex-shrink: 0 für Pill, Text-Overflow
- main: padding 16px statt 20px
- energy-wrap: width: 100%, kwh-card min-width: 0
- @media ≤520px: sensor-grid, settings, header-icon ausgeblendet

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

haos-addon/src/web/index.html

@@ -13,32 +13,39 @@
     --radius: 10px;
   }
   * { box-sizing: border-box; margin: 0; padding: 0; }
+  html, body { max-width: 100vw; overflow-x: hidden; }
   body { background: var(--bg); color: var(--text);
     font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
     font-size: 14px; min-height: 100vh; }
 
-  header { display: flex; align-items: center; gap: 12px;
+  header { display: flex; align-items: center; gap: 10px;
-    padding: 16px 20px; background: var(--surface);
+    padding: 12px 16px; background: var(--surface);
     border-bottom: 1px solid var(--border);
-    position: sticky; top: 0; z-index: 100; }
+    position: sticky; top: 0; z-index: 100;
-  header h1 { font-size: 16px; font-weight: 600; }
+    min-width: 0; }
-  header .subtitle { font-size: 12px; color: var(--text-dim); }
+  header h1 { font-size: 16px; font-weight: 600; white-space: nowrap; }
-  .status-pill { margin-left: auto; display: flex; gap: 8px; align-items: center; }
+  header .subtitle { font-size: 12px; color: var(--text-dim);
+    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
+  .status-pill { margin-left: auto; display: flex; gap: 6px; align-items: center; flex-shrink: 0; }
   .pill { display: flex; align-items: center; gap: 5px; padding: 4px 10px;
     border-radius: 20px; font-size: 12px; font-weight: 600;
-    background: var(--surface2); border: 1px solid var(--border); }
+    background: var(--surface2); border: 1px solid var(--border); white-space: nowrap; }
   .pill.ok { color: var(--green); border-color: var(--green); }
   .pill.err { color: var(--red); border-color: var(--red); }
   .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor;
     animation: pulse 2s infinite; }
   @keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }
 
-  main { padding: 20px; max-width: 1100px; margin: 0 auto; }
+  main { padding: 16px; max-width: 1100px; margin: 0 auto; }
-  .tabs { display: flex; gap: 4px; margin-bottom: 20px;
+  .tabs { display: flex; gap: 2px; margin-bottom: 16px;
-    border-bottom: 1px solid var(--border); }
+    border-bottom: 1px solid var(--border);
-  .tab { padding: 10px 16px; cursor: pointer; color: var(--text-dim);
+    overflow-x: auto; -webkit-overflow-scrolling: touch;
+    scrollbar-width: none; }
+  .tabs::-webkit-scrollbar { display: none; }
+  .tab { padding: 10px 14px; cursor: pointer; color: var(--text-dim);
     font-weight: 500; border-bottom: 2px solid transparent;
-    margin-bottom: -1px; transition: color .15s, border-color .15s; }
+    margin-bottom: -1px; transition: color .15s, border-color .15s;
+    white-space: nowrap; flex-shrink: 0; }
   .tab.active { color: var(--accent); border-color: var(--accent); }
   .tab:hover { color: var(--text); }
   .panel { display: none; }
@@ -137,11 +144,11 @@
   .info-chip span { color: var(--text); font-weight: 600; }
 
   /* Energy Dashboard */
-  .energy-wrap { max-width: 580px; margin: 0 auto; }
+  .energy-wrap { max-width: 580px; margin: 0 auto; width: 100%; }
-  .energy-svg-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 16px; overflow: hidden; }
+  .energy-svg-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 16px; overflow: hidden; width: 100%; }
-  .energy-kwh { display: grid; grid-template-columns: repeat(auto-fit, minmax(95px, 1fr)); gap: 10px; }
+  .energy-kwh { display: grid; grid-template-columns: repeat(auto-fit, minmax(88px, 1fr)); gap: 8px; }
-  .kwh-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 8px; text-align: center; }
+  .kwh-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 6px; text-align: center; min-width: 0; }
-  .kwh-card .kv { font-size: 18px; font-weight: 700; line-height: 1.2; font-variant-numeric: tabular-nums; }
+  .kwh-card .kv { font-size: 17px; font-weight: 700; line-height: 1.2; font-variant-numeric: tabular-nums; }
   .kwh-card .kl { font-size: 10px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .05em; margin-top: 4px; }
   .flow-dot { /* dots via animateMotion — no CSS animation needed */ }
 
@@ -177,6 +184,16 @@
     background:none; border:none; color:var(--text-dim); padding:0; }
   .wz-skip:hover { color:var(--text); }
 
+  @media (max-width: 520px) {
+    main { padding: 10px; }
+    .settings-section { max-width: 100%; }
+    .sensor-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
+    .inv-list { grid-template-columns: 1fr; }
+    .kwh-card .kv { font-size: 15px; }
+    .flash-section { max-width: 100% !important; }
+    header svg { display: none; }
+  }
+
   /* Flash-Wizard */
   .flash-section { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:20px; max-width:560px; }
   .flash-section h3 { font-size:13px; font-weight:600; color:var(--text-dim); text-transform:uppercase; letter-spacing:.06em; margin-bottom:16px; padding-bottom:12px; border-bottom:1px solid var(--border); }