fix: use original logo and responsive header

styles.css

@@ -130,10 +130,17 @@ body {
 .brand-logo-svg {
   height: 34px;
   width: auto;
-  color: var(--text-main);
+  display: block;
+  object-fit: contain;
   transition: transform 0.2s ease;
 }
 
+.theme-dark .brand-block {
+  padding: 3px 6px;
+  background: rgba(255, 255, 255, 0.94);
+  border-radius: 8px;
+}
+
 .brand-logo-svg:hover {
   transform: scale(1.03);
 }
@@ -667,3 +674,193 @@ body {
   color: var(--text-sub);
   margin-top: 1px;
 }
+
+/* --------------------------------------------------------------------------
+   MOBILE / NARROW VIEWPORT
+   -------------------------------------------------------------------------- */
+@media (max-width: 768px) {
+  body {
+    height: auto;
+    min-height: 100dvh;
+    overflow-x: hidden;
+    overflow-y: auto;
+  }
+
+  .liquid-cockpit-wrapper {
+    width: 100%;
+    height: auto;
+    min-height: 100dvh;
+    padding: 8px;
+    gap: 8px;
+  }
+
+  .liquid-header {
+    height: auto;
+    min-height: 0;
+    padding: 10px;
+    flex-wrap: wrap;
+    gap: 10px;
+  }
+
+  .header-left {
+    width: 100%;
+    min-width: 0;
+    gap: 10px;
+  }
+
+  .brand-block {
+    flex: 0 1 150px;
+    min-width: 118px;
+  }
+
+  .brand-logo-svg {
+    width: 100%;
+    max-width: 150px;
+    height: auto;
+  }
+
+  .brand-divider {
+    flex: 0 0 1px;
+  }
+
+  .cockpit-title-wrap {
+    min-width: 0;
+    flex: 1;
+    justify-content: flex-end;
+  }
+
+  .cockpit-title {
+    flex: 0 0 auto;
+    font-size: 15px;
+    white-space: nowrap;
+    word-break: keep-all;
+  }
+
+  .de-tag {
+    display: none;
+  }
+
+  .header-kpi-group {
+    order: 2;
+    display: grid;
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+    width: 100%;
+    gap: 6px;
+  }
+
+  .kpi-glass-capsule {
+    min-width: 0;
+    padding: 5px 7px;
+  }
+
+  .capsule-lbl {
+    overflow: hidden;
+    font-size: 8px;
+    white-space: nowrap;
+    text-overflow: ellipsis;
+  }
+
+  .capsule-val {
+    font-size: 12px;
+    white-space: nowrap;
+  }
+
+  .header-controls {
+    order: 3;
+    width: 100%;
+    justify-content: space-between;
+    gap: 4px;
+  }
+
+  .segment-btn,
+  .bw-btn {
+    padding: 4px 8px;
+    font-size: 10px;
+  }
+
+  .time-widget {
+    display: none;
+  }
+
+  .cockpit-main-grid {
+    grid-template-columns: minmax(0, 1fr);
+    flex: none;
+    min-height: 0;
+    gap: 8px;
+  }
+
+  .map-spatial-container {
+    height: 520px;
+    min-height: 520px;
+  }
+
+  .map-top-bar {
+    top: 8px;
+    left: 8px;
+    right: 8px;
+  }
+
+  .status-glass-pill {
+    min-width: 0;
+    max-width: 100%;
+    padding: 4px 8px;
+  }
+
+  #mapStatusText {
+    min-width: 0;
+    overflow: hidden;
+    white-space: nowrap;
+    text-overflow: ellipsis;
+  }
+
+  .map-legend-glass {
+    display: none;
+  }
+
+  .map-action-controls {
+    right: 8px;
+    bottom: 30px;
+    gap: 4px;
+  }
+
+  .glass-btn {
+    padding: 5px 7px;
+    font-size: 9px;
+  }
+
+  .map-bottom-info {
+    justify-content: flex-start;
+    overflow: hidden;
+  }
+
+  .map-bottom-info span:not(:last-child) {
+    display: none;
+  }
+
+  .sidebar-operations {
+    min-height: auto;
+  }
+
+  .sidebar-card {
+    overflow: visible;
+  }
+
+  .liquid-ranking-list {
+    max-height: none;
+    overflow: visible;
+  }
+}
+
+@media (max-width: 390px) {
+  .brand-block {
+    flex-basis: 138px;
+  }
+
+  .brand-logo-svg {
+    max-width: 138px;
+  }
+
+  .theme-switcher-bw .bw-btn span {
+    display: none;
+  }
+}