A picture in a post opens full screen, and the paperclip is a button again.

The attach control was a .btn-sm holding a 16px icon, wedged between two
full-height buttons — a sliver to aim at on a phone. It's a 48px square the
height of the row now, with a 20px clip in it.

And tapping an image opens it full screen: the image centred on a dark
ground, tap anywhere (or Escape) to close. Posts crop images to 320px so a
feed stays a feed, which makes a photograph a thumbnail — this is where you
actually look at one.

Two details in the viewer. The page underneath stops scrolling while it's
open, and the scrollbar gutter the page keeps reserved stands down with it:
fixed positioning is sized to the viewport WITHOUT that gutter, so an
"inset: 0" backdrop leaves a pale stripe down the side of an otherwise
full-screen picture.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Claude-Session: https://claude.ai/code/session_019mrt228Upn9nNCwGixzSLx

1 files changed, 34 insertions, 0 deletions

diff --git a/src/style.css b/src/style.css
index 13198cc..4d71435 100644
--- a/src/style.css
+++ b/src/style.css
@@ -532,6 +532,40 @@ hr.divider { margin: 16px 0; }
 
 /* Profile note feed: inline images stay contained, links wrap. */
 .note-img { display: block; max-width: 100%; max-height: 320px; border-radius: 10px; margin-top: 6px; object-fit: contain; }
+.note-img.clickable { cursor: zoom-in; }
+/* The attach button sits between Post and Cancel: a square the size of the
+   buttons beside it, not the sliver a .btn-sm made of a 20px icon. */
+.attach-btn {
+  flex: 0 0 auto; width: 48px; align-self: stretch; min-height: 44px;
+  display: flex; align-items: center; justify-content: center; padding: 0;
+}
+/* A picture, full screen: the image centred on a dark ground, everything
+   else out of the way. Fixed to the viewport (svh, so a phone's address bar
+   can't push it), and above every other layer including the toast. */
+.lightbox {
+  position: fixed; inset: 0; z-index: 200;
+  display: flex; align-items: center; justify-content: center;
+  background: rgba(8, 10, 14, .94); padding: 16px;
+  animation: lightbox-in .12s ease-out;
+}
+/* Nothing scrolls behind a picture that fills the screen — and the reserved
+   scrollbar gutter (see html, top of file) stands down with it, or it shows
+   as a pale stripe beside an otherwise full-screen image. Fixed positioning
+   is sized to the viewport WITHOUT that gutter, so this is the only way to
+   reach the edge. No layout shift worth the name: it happens under the
+   backdrop. */
+html.no-scroll { overflow: hidden; scrollbar-gutter: auto; }
+.lightbox img {
+  max-width: 100%; max-height: 100svh; max-height: 100vh;
+  object-fit: contain; border-radius: 6px; cursor: zoom-out;
+}
+.lightbox-x {
+  position: absolute; top: max(10px, env(safe-area-inset-top)); right: 10px;
+  width: 40px; height: 40px; padding: 0; font-size: 26px; line-height: 1;
+  border-radius: 999px; border: 0; color: #fff; background: rgba(255, 255, 255, .14);
+}
+.lightbox-x:hover { background: rgba(255, 255, 255, .24); }
+@keyframes lightbox-in { from { opacity: 0; } to { opacity: 1; } }
 .note-video { display: block; max-width: 100%; max-height: 360px; border-radius: 10px; margin-top: 6px; background: #000; }
 /* the profile notes feed: page-scrolled (no inner scrollbox); on phones it
    runs edge to edge — the card walls step outside #app's padding */