refactor: polish UI for Export and Contacts pages

src/pages/ContactsPage.scss

@@ -834,3 +834,192 @@
     transform: rotate(360deg);
   }
 }
+
+// UI rebuild polish for the contact detail surface.
+.contacts-page {
+  background: var(--bg-primary);
+
+  .contact-detail-panel {
+    background: var(--bg-primary);
+  }
+
+  .contact-detail-scroll {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    padding: 24px;
+    display: flex;
+    flex-direction: column;
+    gap: 16px;
+
+    &::-webkit-scrollbar {
+      width: 6px;
+    }
+
+    &::-webkit-scrollbar-thumb {
+      background: color-mix(in srgb, var(--text-tertiary) 55%, transparent);
+      border-radius: 3px;
+    }
+  }
+
+  .contact-detail-hero {
+    display: flex;
+    align-items: center;
+    gap: 18px;
+    padding: 22px;
+    border-radius: 16px;
+    background: var(--bg-secondary);
+    border: 1px solid color-mix(in srgb, var(--border-color) 72%, transparent);
+  }
+
+  .contact-detail-hero .detail-avatar {
+    width: 84px;
+    height: 84px;
+    border-radius: 16px;
+    background: var(--bg-tertiary);
+    overflow: hidden;
+    flex-shrink: 0;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+
+    img {
+      width: 100%;
+      height: 100%;
+      object-fit: cover;
+    }
+
+    span {
+      color: var(--text-secondary);
+      font-size: 28px;
+      font-weight: 650;
+    }
+  }
+
+  .contact-detail-heading {
+    min-width: 0;
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
+
+    h2 {
+      margin: 0;
+      color: var(--text-primary);
+      font-size: 24px;
+      line-height: 1.2;
+      font-weight: 650;
+      overflow-wrap: anywhere;
+    }
+
+    p {
+      margin: 0;
+      color: var(--text-secondary);
+      font-size: 13px;
+      line-height: 1.5;
+      overflow-wrap: anywhere;
+    }
+  }
+
+  .detail-type {
+    width: fit-content;
+    border-radius: 999px;
+    padding: 5px 10px;
+  }
+
+  .contact-action-row {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
+    gap: 10px;
+  }
+
+  .contact-action-row .goto-chat-btn,
+  .contact-action-row .detail-entry-btn {
+    min-height: 44px;
+    width: 100%;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    gap: 8px;
+    border-radius: 12px;
+    padding: 10px 14px;
+    font-size: 14px;
+    font-weight: 600;
+    cursor: pointer;
+    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
+  }
+
+  .contact-action-row .goto-chat-btn {
+    border: 1px solid var(--primary);
+    background: var(--primary);
+    color: var(--on-primary, #fff);
+
+    &:hover {
+      background: var(--primary-hover);
+      border-color: var(--primary-hover);
+    }
+  }
+
+  .contact-action-row .detail-entry-btn {
+    border: 1px solid var(--border-color);
+    background: var(--bg-secondary);
+    color: var(--text-primary);
+
+    &:hover {
+      color: var(--primary);
+      border-color: color-mix(in srgb, var(--primary) 40%, var(--border-color));
+      background: color-mix(in srgb, var(--primary) 7%, var(--bg-secondary));
+    }
+  }
+
+  .contact-detail-section {
+    padding: 18px;
+    border-radius: 16px;
+    background: var(--bg-secondary);
+    border: 1px solid color-mix(in srgb, var(--border-color) 72%, transparent);
+  }
+
+  .section-title {
+    margin-bottom: 12px;
+    color: var(--text-secondary);
+    font-size: 12px;
+    font-weight: 650;
+  }
+
+  .contact-detail-section .detail-info-list {
+    margin: 0;
+    display: grid;
+    gap: 8px;
+  }
+
+  .contact-detail-section .detail-row {
+    display: grid;
+    grid-template-columns: 76px minmax(0, 1fr);
+    align-items: start;
+    gap: 12px;
+    padding: 12px 14px;
+    border: none;
+    border-radius: 12px;
+    background: var(--bg-primary);
+    font-size: 13px;
+  }
+
+  .contact-detail-section .detail-label {
+    min-width: 0;
+    color: var(--text-tertiary);
+  }
+
+  .contact-detail-section .detail-value {
+    color: var(--text-primary);
+    line-height: 1.55;
+    word-break: break-word;
+    overflow-wrap: anywhere;
+    user-select: text;
+  }
+
+  @media (max-width: 860px) {
+    .contact-detail-hero {
+      align-items: flex-start;
+      flex-direction: column;
+    }
+  }
+}