First commit

frontend/app/assets/css/_profile.scss

@@ -0,0 +1,91 @@
+@use 'mixins' as *;
+
+// ---------- Profile popup ----------
+// The account row in the sidebar opens it; it draws and closes in the same
+// shape as the settings popup. Holds the profile picture (a data URL kept on
+// the account), the username, the password, and the way out.
+.profile-overlay { @include overlay(120); }
+
+.profile-modal {
+  @include sheet(460px, min(620px, calc(100vh - 110px)));
+
+  &:focus, &:focus-visible { outline: none; }
+}
+
+.profile-modal-head { @include sheet-head; }
+
+.profile-title { @include sheet-title; }
+
+.profile-modal-body { @include sheet-body; }
+
+.profile-group + .profile-group {
+  margin-top: 22px;
+  padding-top: 22px;
+  border-top: 1px solid var(--border);
+}
+
+.profile-group-head {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  margin-bottom: 12px;
+}
+
+.profile-group-title { font-size: 0.92rem; font-weight: 700; color: var(--text); }
+
+.profile-group-hint { font-size: 0.8rem; color: var(--muted); }
+
+// the big avatar beside its buttons
+.profile-avatar-row { display: flex; align-items: center; gap: 18px; }
+
+.profile-avatar { @include avatar(72px, 1.7rem); }
+
+.profile-avatar-actions {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-start;
+  gap: 8px;
+}
+
+// the file chooser is driven by the buttons above it, never shown itself
+.profile-file-input { display: none; }
+
+.profile-form {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 8px;
+
+  input {
+    flex: 1;
+    min-width: 0;
+    padding: 10px 13px;
+    border: 1px solid var(--border);
+    border-radius: 10px;
+    background: var(--bg-elev);
+    font-size: 0.88rem;
+    transition: border-color 0.15s, box-shadow 0.2s;
+
+    &:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
+  }
+
+  // the password pair stack one per line, the button below them
+  &-password input { flex: 1 1 100%; }
+}
+
+.profile-saved {
+  margin: 8px 0 0;
+  font-size: 0.8rem;
+  font-weight: 600;
+  color: var(--accent);
+}
+
+.profile-signout { margin-top: 2px; }
+
+@include popup-anim(
+  'profile-popup',
+  '.profile-modal',
+  0.16s,
+  transform 0.2s cubic-bezier(0.22, 0.61, 0.36, 1),
+  -10px
+);