diff --git a/apps/web/src/components/features/config-profiles/ConfigProfileEditorPanel.tsx b/apps/web/src/components/features/config-profiles/ConfigProfileEditorPanel.tsx
index e4480d4..f51ab35 100644
--- a/apps/web/src/components/features/config-profiles/ConfigProfileEditorPanel.tsx
+++ b/apps/web/src/components/features/config-profiles/ConfigProfileEditorPanel.tsx
@@ -173,9 +173,12 @@ export const ConfigProfileEditorPanel = ({
               </label>
             </div>
 
-            <div className="form-section">
-              <div className="row justify-between items-center mb-3">
-                <h4 className="m-0">Includes</h4>
+            <section className="config-section">
+              <div className="config-section-header">
+                <div>
+                  <h4 className="config-section-title">Includes</h4>
+                  <p className="config-section-subtitle">Compose configurations from other profiles</p>
+                </div>
                 <span className="muted text-sm">{includedProfileIds.length} included</span>
               </div>
               {includedProfileIds.length === 0 ? (
@@ -216,10 +219,10 @@ export const ConfigProfileEditorPanel = ({
                   </select>
                 </div>
               )}
-            </div>
+            </section>
 
-            <div className="form-section">
-              <h4 className="m-0 mb-3">Environment Variables</h4>
+            <section className="config-section">
+              <h4 className="config-section-title">Environment Variables</h4>
               {Object.entries(formData.env_vars || {}).map(([key, value], idx) => (
                 <div key={idx} className="form-row row-sm mb-2">
                   <input type="text" value={key} onChange={(e) => onUpdateEnvVar(key, e.target.value, value)} placeholder="VAR_NAME" className="form-input" />
@@ -228,16 +231,20 @@ export const ConfigProfileEditorPanel = ({
                 </div>
               ))}
               <button type="button" className="secondary-button" onClick={onAddEnvVar}><Icon name="add" size="sm" /> Add Variable</button>
-            </div>
+            </section>
 
-            <div className="form-section">
-              <h4 className="m-0 mb-3">Runtime Hints</h4>
+            <section className="config-section">
+              <h4 className="config-section-title">Runtime Hints</h4>
               <textarea value={JSON.stringify(formData.runtime_hints || {}, null, 2)} onChange={(e) => { try { const parsed = JSON.parse(e.target.value); onFormChange("runtime_hints", parsed); } catch { /* ignore */ } }} placeholder='{"start_command": "npm start"}' rows={4} className="form-input font-mono text-sm" />
-            </div>
+            </section>
 
-            <div className="form-section">
-              <h4 className="m-0 mb-2">Files</h4>
-              <p className="muted text-sm m-0 mb-3">Relative paths written to the instance directory. Use Mounts below for absolute container paths.</p>
+            <section className="config-section">
+              <div className="config-section-header">
+                <div>
+                  <h4 className="config-section-title">Files</h4>
+                  <p className="config-section-subtitle">Relative paths written to the instance directory</p>
+                </div>
+              </div>
               {Object.entries(formData.files || {}).map(([path, content], idx) => (
                 <div key={idx} className="card-sm mb-2">
                   <div className="form-row row-sm mb-2">
@@ -248,11 +255,15 @@ export const ConfigProfileEditorPanel = ({
                 </div>
               ))}
               <button type="button" className="secondary-button" onClick={onAddFile}><Icon name="add" size="sm" /> Add File</button>
-            </div>
+            </section>
 
-            <div className="form-section">
-              <h4 className="m-0 mb-2">Mounts</h4>
-              <p className="muted text-sm m-0 mb-3">Bind directories into the container at absolute paths. Files are relative to the mount target.</p>
+            <section className="config-section">
+              <div className="config-section-header">
+                <div>
+                  <h4 className="config-section-title">Mounts</h4>
+                  <p className="config-section-subtitle">Bind directories into the container at absolute paths</p>
+                </div>
+              </div>
               {(formData.mounts || []).map((mount, index) => (
                 <div key={index} className="card-sm mb-3">
                   <div className="form-row row-sm mb-3">
@@ -276,11 +287,12 @@ export const ConfigProfileEditorPanel = ({
                 </div>
               ))}
               <button type="button" className="secondary-button" onClick={onAddMount}><Icon name="add" size="sm" /> Add Mount</button>
-            </div>
+            </section>
 
-            <div className="form-section">
+            <section className="config-section">
+              <h4 className="config-section-title">Git Mounts</h4>
               <GitMountEditor mounts={formData.git_mounts || []} onChange={(git_mounts) => onFormChange("git_mounts", git_mounts)} />
-            </div>
+            </section>
 
             <div className="dialog-actions sticky-footer">
               <button type="submit" disabled={saveStatus === "saving"} className="btn btn-primary">
diff --git a/apps/web/src/components/features/project/ProjectCard.tsx b/apps/web/src/components/features/project/ProjectCard.tsx
index 1c40e1e..04de132 100644
--- a/apps/web/src/components/features/project/ProjectCard.tsx
+++ b/apps/web/src/components/features/project/ProjectCard.tsx
@@ -119,89 +119,99 @@ export const ProjectCard = ({
 
 			{expanded && (
 				<div className="project-detail">
-					{(project.repositories || []).length === 0 ? (
-						<p className="muted">No repositories yet.</p>
-					) : (
-						<div className="repo-list">
-							{(project.repositories || []).map((repo) => (
-								<div key={repo.id} className="card card-md repo-block">
-									<div className="repo-header">
-										<h4>{repo.name}</h4>
-										<button
-											className="btn btn-sm btn-primary"
-											onClick={() => onCreateWorkspace(repo.id)}
-											type="button"
-										>
-											<Icon name="add" size="sm" /> New Workspace
-										</button>
-									</div>
-									{showCreateForm === repo.id && (
-										<WorkspaceCreateForm
-											defaultProjectId={project.id}
-											defaultRepoId={repo.id}
-											onSubmit={onCreated}
-											onCancel={onCancelCreate}
-										/>
-									)}
-									{repo.workspaces.length === 0 ? (
-										<p className="muted">No workspaces.</p>
-									) : (
-										<div className="workspace-grid">
-											{repo.workspaces.map((ws) => (
-												<div
-													key={ws.id}
-													className={`workspace-chip ${ws.status}`}
-												>
-													<a href={`/workspaces/${ws.id}`}>{ws.name}</a>
-													<span className="ws-branch">
-														<Icon name="branch" size="sm" /> {ws.branch}
-													</span>
-													{ws.instance_count > 0 && (
-														<span className="ws-instances">
-															{ws.instance_count} tool
-															{ws.instance_count > 1 ? "s" : ""}
-														</span>
-													)}
-													<div className="ws-actions">
-														<button
-															type="button"
-															disabled={workspaceLoading === ws.id}
-															onClick={() =>
-																onWorkspaceAction(repo.id, ws, "sync")
-															}
-														>
-															<Icon name="refresh" size="sm" />
-														</button>
-														<button
-															type="button"
-															className="danger-text"
-															disabled={workspaceLoading === ws.id}
-															onClick={() =>
-																onWorkspaceAction(repo.id, ws, "delete")
-															}
-														>
-															<Icon name="delete" size="sm" />
-														</button>
-													</div>
-												</div>
-											))}
+					<section className="project-repos">
+						<div className="project-repos-header">
+							<div>
+								<h4 className="config-section-title">Repositories</h4>
+								<p className="config-section-subtitle">
+									{project.repositories?.length ?? 0} repo
+									{(project.repositories?.length ?? 0) !== 1 ? "s" : ""}
+								</p>
+							</div>
+							{onAddRepository && (
+								<button
+									className="btn btn-sm btn-secondary"
+									onClick={onAddRepository}
+									type="button"
+								>
+									<Icon name="add" size="sm" /> Add Repository
+								</button>
+							)}
+						</div>
+
+						{(project.repositories || []).length === 0 ? (
+							<p className="muted">No repositories yet.</p>
+						) : (
+							<div className="repo-list">
+								{(project.repositories || []).map((repo) => (
+									<div key={repo.id} className="card card-md repo-block">
+										<div className="repo-header">
+											<h4>{repo.name}</h4>
+											<button
+												className="btn btn-sm btn-primary"
+												onClick={() => onCreateWorkspace(repo.id)}
+												type="button"
+											>
+												<Icon name="add" size="sm" /> New Workspace
+											</button>
 										</div>
-									)}
-								</div>
-							))}
-						</div>
-					)}
-					{onAddRepository && (
-						<div className="project-add-repo">
-							<button
-								className="primary-button"
-								onClick={onAddRepository}
-								type="button"
-							>
-								<Icon name="add" size="sm" /> Add Repository
-							</button>
-						</div>
-					)}
+										{showCreateForm === repo.id && (
+											<WorkspaceCreateForm
+												defaultProjectId={project.id}
+												defaultRepoId={repo.id}
+												onSubmit={onCreated}
+												onCancel={onCancelCreate}
+											/>
+										)}
+										{repo.workspaces.length === 0 ? (
+											<p className="muted">No workspaces.</p>
+										) : (
+											<div className="workspace-grid">
+												{repo.workspaces.map((ws) => (
+													<div
+														key={ws.id}
+														className={`workspace-chip ${ws.status}`}
+													>
+														<a href={`/workspaces/${ws.id}`}>{ws.name}</a>
+														<span className="ws-branch">
+															<Icon name="branch" size="sm" /> {ws.branch}
+														</span>
+														{ws.instance_count > 0 && (
+															<span className="ws-instances">
+																{ws.instance_count} tool
+																{ws.instance_count > 1 ? "s" : ""}
+															</span>
+														)}
+														<div className="ws-actions">
+															<button
+																type="button"
+																disabled={workspaceLoading === ws.id}
+																onClick={() =>
+																	onWorkspaceAction(repo.id, ws, "sync")
+																}
+															>
+																<Icon name="refresh" size="sm" />
+															</button>
+															<button
+																type="button"
+																className="danger-text"
+																disabled={workspaceLoading === ws.id}
+																onClick={() =>
+																	onWorkspaceAction(repo.id, ws, "delete")
+																}
+															>
+																<Icon name="delete" size="sm" />
+															</button>
+														</div>
+													</div>
+												))}
+											</div>
+										)}
+									</div>
+								))}
+							</div>
+						)}
+					</section>
 				</div>
 			)}
 		</article>
diff --git a/apps/web/src/components/features/tool/manifest-editor.tsx b/apps/web/src/components/features/tool/manifest-editor.tsx
index f0472d8..9fee3b7 100644
--- a/apps/web/src/components/features/tool/manifest-editor.tsx
+++ b/apps/web/src/components/features/tool/manifest-editor.tsx
@@ -286,8 +286,8 @@ export const ManifestEditor = ({
 	return (
 		<div className="stack stack-lg">
 			{/* Base Image */}
-			<div className="card-md stack stack-md">
-				<h4 className="m-0">Base Image</h4>
+			<section className="config-section">
+				<h4 className="config-section-title">Base Image</h4>
 				<div className="form-row row-md">
 					<div className="form-group">
 						<label>Base Definition</label>
@@ -322,11 +322,11 @@ export const ManifestEditor = ({
 						/>
 					</div>
 				</div>
-			</div>
+			</section>
 
 			{/* Packages */}
-			<div className="card-md stack stack-md">
-				<h4 className="m-0">Packages</h4>
+			<section className="config-section">
+				<h4 className="config-section-title">Packages</h4>
 
 				<div className="form-group">
 					<label>Node.js Version</label>
@@ -435,11 +435,11 @@ export const ManifestEditor = ({
 						</button>
 					</div>
 				</div>
-			</div>
+			</section>
 
 			{/* Runtime User */}
-			<div className="card-md stack stack-md">
-				<h4 className="m-0">Runtime User</h4>
+			<section className="config-section">
+				<h4 className="config-section-title">Runtime User</h4>
 				<div className="form-row row-md">
 					<div className="form-group">
 						<label>User Name</label>
@@ -469,11 +469,11 @@ export const ManifestEditor = ({
 						/>
 					</div>
 				</div>
-			</div>
+			</section>
 
 			{/* Environment */}
-			<div className="card-md stack stack-md">
-				<h4 className="m-0">Environment Variables</h4>
+			<section className="config-section">
+				<h4 className="config-section-title">Environment Variables</h4>
 				<div className="stack stack-sm">
 					{envVars.map((ev, idx) => (
 						<div key={idx} className="form-row row-sm">
@@ -509,11 +509,11 @@ export const ManifestEditor = ({
 						<Icon name="add" size="sm" /> Add Env Var
 					</button>
 				</div>
-			</div>
+			</section>
 
 			{/* Build Scripts */}
-			<div className="card-md stack stack-md">
-				<h4 className="m-0">Build Scripts (run during docker build)</h4>
+			<section className="config-section">
+				<h4 className="config-section-title">Build Scripts (run during docker build)</h4>
 				<div className="stack stack-sm">
 					{buildScripts.map((script, idx) => (
 						<div
@@ -545,11 +545,11 @@ export const ManifestEditor = ({
 						<Icon name="add" size="sm" /> Add Build Script
 					</button>
 				</div>
-			</div>
+			</section>
 
 			{/* Startup Scripts */}
-			<div className="card-md stack stack-md">
-				<h4 className="m-0">
+			<section className="config-section">
+				<h4 className="config-section-title">
 					Startup Scripts (run when container starts)
 				</h4>
 				<div className="stack stack-sm">
@@ -583,11 +583,11 @@ export const ManifestEditor = ({
 						<Icon name="add" size="sm" /> Add Startup Script
 					</button>
 				</div>
-			</div>
+			</section>
 
 			{/* Mounts */}
-			<div className="card-md stack stack-md">
-				<h4 className="m-0">Mount Schema</h4>
+			<section className="config-section">
+				<h4 className="config-section-title">Mount Schema</h4>
 				<div className="stack stack-md">
 					{mounts.map((mount, idx) => (
 						<div
@@ -701,11 +701,11 @@ export const ManifestEditor = ({
 						<Icon name="add" size="sm" /> Add Mount
 					</button>
 				</div>
-			</div>
+			</section>
 
 			{/* Runtime */}
-			<div className="card-md stack stack-md">
-				<h4 className="m-0">Runtime</h4>
+			<section className="config-section">
+				<h4 className="config-section-title">Runtime</h4>
 				<div className="form-row row-md">
 					<div className="form-group">
 						<label>Command</label>
@@ -746,7 +746,7 @@ export const ManifestEditor = ({
 						tty
 					</label>
 				</div>
-			</div>
+			</section>
 
 			{/* Preview */}
 			<div className="card-md stack stack-md">
diff --git a/apps/web/src/styles/global.css b/apps/web/src/styles/global.css
index d157ac3..fa6f143 100644
--- a/apps/web/src/styles/global.css
+++ b/apps/web/src/styles/global.css
@@ -104,6 +104,7 @@
 	justify-content: space-between;
 	gap: var(--space-4);
 	align-items: flex-start;
+	padding: var(--space-4);
 }
 
 .home-hero-actions {
@@ -123,11 +124,19 @@
 	grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
 }
 
+.home-summary-card {
+	padding: var(--space-4);
+}
+
 .home-project-grid,
 .home-session-grid {
 	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
 }
 
+.home-section {
+	padding: var(--space-4);
+}
+
 .home-section h2,
 .settings-header h1,
 .settings-panel h2 {
@@ -139,6 +148,14 @@
 	margin: 0;
 }
 
+@media (max-width: 767px) {
+	.home-hero,
+	.home-summary-card,
+	.home-section {
+		padding: var(--space-3);
+	}
+}
+
 .row-tight {
 	gap: var(--space-2);
 }
@@ -576,6 +593,49 @@
 	margin-bottom: 0;
 }
 
+/* Shared config section — used by Tool Workshop and Config Profiles */
+.config-section {
+	display: flex;
+	flex-direction: column;
+	gap: var(--space-3);
+	padding: var(--space-4);
+	background: var(--panel);
+	border: 1px solid var(--border);
+	border-radius: var(--radius-md);
+}
+
+.config-section-title {
+	margin: 0 0 var(--space-1);
+	font-size: var(--font-size-base);
+	font-weight: 600;
+	line-height: var(--line-height-tight);
+	color: var(--ink);
+}
+
+.config-section-subtitle {
+	margin: calc(var(--space-1) * -1) 0 var(--space-2);
+	font-size: var(--font-size-sm);
+	color: var(--muted);
+	line-height: var(--line-height-normal);
+}
+
+.config-section > .config-section-title + .config-section-subtitle {
+	margin-top: calc(var(--space-2) * -1);
+}
+
+.config-section-header {
+	display: flex;
+	align-items: flex-start;
+	justify-content: space-between;
+	gap: var(--space-3);
+	margin-bottom: var(--space-2);
+}
+
+.config-section-header .config-section-title {
+	margin-bottom: 0;
+}
+
+/* Legacy alias for existing consumers */
 .form-section {
 	padding: var(--space-4);
 	background: var(--panel);
diff --git a/apps/web/src/styles/pages/projects.css b/apps/web/src/styles/pages/projects.css
index ec560b6..7265852 100644
--- a/apps/web/src/styles/pages/projects.css
+++ b/apps/web/src/styles/pages/projects.css
@@ -45,24 +45,40 @@
 	border-top: 1px solid var(--border);
 }
 
+.project-repos {
+	display: flex;
+	flex-direction: column;
+	gap: var(--space-3);
+}
+
+.project-repos-header {
+	display: flex;
+	align-items: flex-start;
+	justify-content: space-between;
+	gap: var(--space-3);
+}
+
+.project-repos-header .config-section-title {
+	margin-bottom: 0;
+}
+
 .repo-list {
 	display: flex;
 	flex-direction: column;
-	gap: var(--space-4);
+	gap: var(--space-3);
 }
 
 .repo-block {
 	display: flex;
 	flex-direction: column;
 	gap: var(--space-3);
-	padding: var(--space-4);
 	background: var(--bg);
-	border-radius: var(--radius-md);
 }
 
 .repo-block,
 .repo-block.card-md {
 	border: 1px solid var(--border);
+	border-radius: var(--radius-md);
 }
 
 .repo-header {
@@ -139,11 +155,14 @@
 }
 
 .project-add-repo {
-	margin-top: var(--space-4);
-	padding-top: var(--space-4);
-	border-top: 1px solid var(--border);
-	display: flex;
-	justify-content: flex-start;
+	display: none;
+}
+
+@media (max-width: 767px) {
+	.project-repos-header {
+		flex-direction: column;
+		gap: var(--space-2);
+	}
 }
 
 /* Inline radio buttons for repository creation mode */