Keep mention suggestions beneath the sticky feed header and redesign the global composer with unclipped in-flow suggestions, posting identity, and a refined premium surface

Hop-State: A_06FPG91R98C050VWTAKGRKG
Hop-Proposal: R_06FPG915QD4SR4VFHHX53D0
Hop-Task: T_06FPG7TG5B2731WFT0VWGW8
Hop-Attempt: AT_06FPG7TG58Z084M8ZE6VEP0

src/app/globals.css

@@ -804,7 +804,7 @@ a.btn-primary:visited {
 
 .compose-mention-suggestions {
   position: absolute;
-  z-index: 40;
+  z-index: 30;
   top: calc(100% + 4px);
   left: 8px;
   right: 8px;
@@ -1079,41 +1079,77 @@ a.btn-primary:visited {
   z-index: 11000;
   display: grid;
   place-items: center;
-  padding: 24px;
+  overflow-y: auto;
-  background: rgba(0, 0, 0, 0.72);
+  padding: 32px 24px;
-  backdrop-filter: blur(10px);
+  background:
-  -webkit-backdrop-filter: blur(10px);
+    radial-gradient(circle at 50% 38%, rgba(255, 255, 255, 0.055), transparent 38%),
+    rgba(0, 0, 0, 0.78);
+  backdrop-filter: blur(16px) saturate(0.8);
+  -webkit-backdrop-filter: blur(16px) saturate(0.8);
   animation: globalComposeFadeIn 0.16s ease-out;
 }
 
 .global-compose-modal {
-  width: min(640px, 100%);
+  position: relative;
-  max-height: calc(100dvh - 48px);
+  isolation: isolate;
-  overflow-y: auto;
+  width: min(680px, 100%);
-  border: 1px solid var(--border);
+  overflow: visible;
-  border-radius: 24px;
+  border: 1px solid color-mix(in srgb, var(--border-hover) 72%, transparent);
-  background: var(--background-secondary);
+  border-radius: 26px;
-  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.65);
+  background: linear-gradient(180deg, #141414 0%, #0d0d0d 100%);
+  box-shadow:
+    0 36px 120px rgba(0, 0, 0, 0.78),
+    0 0 0 1px rgba(255, 255, 255, 0.025) inset;
   animation: globalComposeRiseIn 0.2s ease-out;
 }
 
+.global-compose-modal::before {
+  content: '';
+  position: absolute;
+  z-index: -1;
+  inset: 0 12% auto;
+  height: 1px;
+  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.38), transparent);
+}
+
 .global-compose-header {
-  position: sticky;
-  top: 0;
-  z-index: 2;
   display: flex;
   align-items: center;
   justify-content: space-between;
-  padding: 16px 18px;
+  padding: 20px 22px 18px;
-  border-bottom: 1px solid var(--border);
+  border-bottom: 1px solid rgba(255, 255, 255, 0.075);
-  background: color-mix(in srgb, var(--background-secondary) 94%, transparent);
-  backdrop-filter: blur(14px);
 }
 
 .global-compose-header h2 {
   margin: 0;
-  font-size: 18px;
+  font-size: 17px;
-  font-weight: 700;
+  font-weight: 650;
+  letter-spacing: -0.01em;
+}
+
+.global-compose-heading {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+
+.global-compose-heading-icon {
+  display: grid;
+  place-items: center;
+  width: 38px;
+  height: 38px;
+  flex: 0 0 38px;
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  border-radius: 12px;
+  color: var(--foreground);
+  background: rgba(255, 255, 255, 0.055);
+  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset;
+}
+
+.global-compose-heading p {
+  margin: 2px 0 0;
+  color: var(--foreground-tertiary);
+  font-size: 12px;
 }
 
 .global-compose-close {
@@ -1126,13 +1162,117 @@ a.btn-primary:visited {
   border: 0;
   border-radius: 50%;
   color: var(--foreground-secondary);
-  background: transparent;
+  border: 1px solid transparent;
+  background: rgba(255, 255, 255, 0.025);
   cursor: pointer;
 }
 
 .global-compose-close:hover {
   color: var(--foreground);
+  border-color: var(--border);
+  background: rgba(255, 255, 255, 0.07);
+}
+
+.global-compose-identity {
+  display: flex;
+  align-items: center;
+  gap: 11px;
+  padding: 20px 24px 0;
+}
+
+.global-compose-avatar {
+  width: 42px;
+  height: 42px;
+  flex: 0 0 42px;
+  overflow: hidden;
+  border: 1px solid rgba(255, 255, 255, 0.12);
+  border-radius: 50%;
   background: var(--background-tertiary);
+  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.025);
+}
+
+.global-compose-avatar img {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+}
+
+.global-compose-identity-copy {
+  min-width: 0;
+  display: flex;
+  flex: 1;
+  flex-direction: column;
+}
+
+.global-compose-identity-copy > span {
+  overflow: hidden;
+  font-size: 14px;
+  font-weight: 650;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.global-compose-identity-copy small {
+  overflow: hidden;
+  color: var(--foreground-tertiary);
+  font-size: 12px;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.global-compose-audience {
+  padding: 5px 9px;
+  border: 1px solid var(--border);
+  border-radius: 999px;
+  color: var(--foreground-secondary);
+  font-size: 11px;
+  font-weight: 600;
+  letter-spacing: 0.02em;
+  background: rgba(255, 255, 255, 0.025);
+}
+
+.global-compose-modal .compose {
+  padding: 8px 24px 22px;
+  border-bottom: 0;
+}
+
+.global-compose-modal .compose-mention-field {
+  border: 1px solid rgba(255, 255, 255, 0.09);
+  border-radius: 17px;
+  background: rgba(0, 0, 0, 0.22);
+  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.025) inset;
+}
+
+.global-compose-modal .compose-input {
+  min-height: 142px;
+  padding: 18px;
+  font-size: 18px;
+  line-height: 1.5;
+}
+
+.global-compose-modal .compose-mention-suggestions {
+  position: relative;
+  inset: auto;
+  z-index: 1;
+  max-height: min(272px, 36dvh);
+  margin: -4px 10px 10px;
+  border-color: rgba(255, 255, 255, 0.1);
+  border-radius: 13px;
+  background: #101010;
+  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.5);
+}
+
+.global-compose-modal .compose-footer {
+  margin-top: 18px;
+  padding-top: 17px;
+  border-top: 1px solid rgba(255, 255, 255, 0.07);
+}
+
+.global-compose-modal .compose-actions .btn-primary {
+  min-width: 88px;
+  padding: 9px 20px;
+  border-radius: 999px;
+  font-weight: 650;
 }
 
 @keyframes globalComposeFadeIn {
@@ -1154,14 +1294,42 @@ a.btn-primary:visited {
 
   .global-compose-overlay {
     align-items: end;
-    padding: 12px;
+    padding: 12px 10px max(12px, env(safe-area-inset-bottom));
   }
 
   .global-compose-modal {
     width: 100%;
-    max-height: calc(100dvh - 24px);
     border-radius: 22px;
   }
+
+  .global-compose-header {
+    padding: 16px 16px 14px;
+  }
+
+  .global-compose-identity {
+    padding: 16px 18px 0;
+  }
+
+  .global-compose-modal .compose {
+    padding: 6px 18px 18px;
+  }
+
+  .global-compose-modal .compose-input {
+    min-height: 116px;
+    font-size: 17px;
+  }
+}
+
+/* Keep feed autocomplete beneath the sticky navigation as the page scrolls. */
+.home-feed-header {
+  position: sticky;
+  top: 0;
+  z-index: 50;
+  padding: 16px;
+  border-bottom: 1px solid var(--border);
+  background: rgba(10, 10, 10, 0.94);
+  backdrop-filter: blur(14px);
+  -webkit-backdrop-filter: blur(14px);
 }
 
 /* Feed toggle + meta */

src/app/page.tsx

@@ -220,15 +220,7 @@ export default function Home() {
 
   return (
     <>
-      <header style={{
+      <header className="home-feed-header">
-        padding: '16px',
-        borderBottom: '1px solid var(--border)',
-        position: 'sticky',
-        top: 0,
-        background: 'rgba(10, 10, 10, 0.95)',
-        zIndex: 10,
-        backdropFilter: 'blur(12px)',
-      }}>
         <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', gap: '12px', flexWrap: 'wrap' }}>
           <h1 style={{ fontSize: '20px', fontWeight: 600 }}>Home</h1>
           <div className="feed-toggle">

src/components/GlobalPostComposer.tsx

@@ -1,8 +1,9 @@
 'use client';
 
 import { useEffect, useState } from 'react';
-import { Plus, X } from 'lucide-react';
+import { PenLine, Plus, X } from 'lucide-react';
 import { Compose } from '@/components/Compose';
+import { AvatarImage } from '@/components/AvatarImage';
 import { signedAPI } from '@/lib/api/signed-fetch';
 import { useAuth } from '@/lib/contexts/AuthContext';
 import { useToast } from '@/lib/contexts/ToastContext';
@@ -10,7 +11,8 @@ import { useToast } from '@/lib/contexts/ToastContext';
 export function GlobalPostComposer() {
     const { user, did, handle } = useAuth();
     const { showToast } = useToast();
-    const [open, setOpen] = useState(false);
+    const [openForUserId, setOpenForUserId] = useState<string | null>(null);
+    const open = Boolean(user && openForUserId === user.id);
 
     useEffect(() => {
         if (!open) return;
@@ -19,7 +21,7 @@ export function GlobalPostComposer() {
         document.body.style.overflow = 'hidden';
 
         const handleKeyDown = (event: KeyboardEvent) => {
-            if (event.key === 'Escape') setOpen(false);
+            if (event.key === 'Escape') setOpenForUserId(null);
         };
         window.addEventListener('keydown', handleKeyDown);
 
@@ -29,10 +31,6 @@ export function GlobalPostComposer() {
         };
     }, [open]);
 
-    useEffect(() => {
-        if (!user) setOpen(false);
-    }, [user]);
-
     if (!user) return null;
 
     const handlePost = async (
@@ -78,7 +76,7 @@ export function GlobalPostComposer() {
                 <button
                     type="button"
                     className="global-compose-fab"
-                    onClick={() => setOpen(true)}
+                    onClick={() => setOpenForUserId(user.id)}
                     aria-label="Create a post"
                     title="Create a post"
                 >
@@ -90,7 +88,7 @@ export function GlobalPostComposer() {
                 <div
                     className="global-compose-overlay"
                     onMouseDown={(event) => {
-                        if (event.target === event.currentTarget) setOpen(false);
+                        if (event.target === event.currentTarget) setOpenForUserId(null);
                     }}
                 >
                     <section
@@ -98,23 +96,48 @@ export function GlobalPostComposer() {
                         role="dialog"
                         aria-modal="true"
                         aria-labelledby="global-compose-title"
+                        aria-describedby="global-compose-description"
                     >
                         <header className="global-compose-header">
-                            <h2 id="global-compose-title">Create post</h2>
+                            <div className="global-compose-heading">
+                                <span className="global-compose-heading-icon" aria-hidden="true">
+                                    <PenLine size={18} strokeWidth={2} />
+                                </span>
+                                <div>
+                                    <h2 id="global-compose-title">New post</h2>
+                                    <p id="global-compose-description">Share something with your network</p>
+                                </div>
+                            </div>
                             <button
                                 type="button"
                                 className="global-compose-close"
-                                onClick={() => setOpen(false)}
+                                onClick={() => setOpenForUserId(null)}
                                 aria-label="Close post composer"
                             >
                                 <X size={22} />
                             </button>
                         </header>
+                        <div className="global-compose-identity">
+                            <span className="global-compose-avatar">
+                                <AvatarImage
+                                    avatarUrl={user.avatarUrl}
+                                    seed={user.handle}
+                                    isNsfw={user.isNsfw}
+                                    alt=""
+                                />
+                            </span>
+                            <div className="global-compose-identity-copy">
+                                <span>{user.displayName || user.handle}</span>
+                                <small>@{user.handle}</small>
+                            </div>
+                            <span className="global-compose-audience">Public</span>
+                        </div>
                         <Compose
                             autoFocus
+                            placeholder="What do you want to share?"
                             onPost={handlePost}
                             onPosted={() => {
-                                setOpen(false);
+                                setOpenForUserId(null);
                                 showToast('Post published.', 'success');
                             }}
                         />