diff --git a/ui/app.css b/ui/app.css
index 99d4a6d..5100fde 100644
--- a/ui/app.css
+++ b/ui/app.css
@@ -13,7 +13,7 @@
   --warn: #b7791f;
   --warn-soft: #fdf3e1;
   --mono: ui-monospace, "Cascadia Mono", "SF Mono", Consolas, monospace;
-  --radius: 10px;
+  --radius: 0.625rem;
   color-scheme: light;
 }
 @media (prefers-color-scheme: dark) {
@@ -37,75 +37,79 @@
 
 * { box-sizing: border-box; }
 html, body { margin: 0; height: 100%; }
+/* Sizes are in rem, so the whole app grows with wide windows instead of
+   sitting small in a corner: 16px up to 1440px wide, about 20px at 1920. */
+html { font-size: 16px; }
+@media (min-width: 1440px) { html { font-size: clamp(16px, 0.85vw + 3.75px, 24px); } }
 body {
   background: var(--bg); color: var(--text);
-  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
+  font: 0.875rem/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
 }
 [hidden] { display: none !important; }
 a { color: var(--accent); }
-h1 { font-size: 22px; margin: 0 0 4px; font-weight: 650; }
-h2 { font-size: 16px; margin: 0 0 12px; font-weight: 600; }
-h3 { font-size: 14px; margin: 0 0 8px; font-weight: 600; }
-code, .mono { font-family: var(--mono); font-size: 12.5px; }
+h1 { font-size: 1.375rem; margin: 0 0 0.25rem; font-weight: 650; }
+h2 { font-size: 1rem; margin: 0 0 0.75rem; font-weight: 600; }
+h3 { font-size: 0.875rem; margin: 0 0 0.5rem; font-weight: 600; }
+code, .mono { font-family: var(--mono); font-size: 0.7813rem; }
 .muted { color: var(--muted); }
 .error { color: var(--danger); }
-.small { font-size: 12.5px; }
+.small { font-size: 0.7813rem; }
 
 /* layout */
-.app { display: grid; grid-template-columns: 220px 1fr; min-height: 100%; }
+.app { display: grid; grid-template-columns: 13.75rem 1fr; min-height: 100%; }
 .sidebar {
   background: var(--surface); border-right: 1px solid var(--border);
-  display: flex; flex-direction: column; padding: 16px 12px; gap: 16px;
+  display: flex; flex-direction: column; padding: 1rem 0.75rem; gap: 1rem;
   position: sticky; top: 0; height: 100vh;
 }
-.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; padding: 0 8px; }
+.brand { display: flex; align-items: center; gap: 0.625rem; font-weight: 700; font-size: 1.0625rem; padding: 0 0.5rem; }
 nav { display: flex; flex-direction: column; gap: 2px; }
 nav a {
-  color: var(--text); text-decoration: none; padding: 8px 10px; border-radius: 8px;
+  color: var(--text); text-decoration: none; padding: 0.5rem 0.625rem; border-radius: 0.5rem;
 }
 nav a:hover { background: var(--surface-2); }
 nav a.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
 .daemon-pill {
-  margin-top: auto; display: flex; align-items: center; gap: 8px;
-  padding: 8px 10px; border-radius: 8px; background: var(--surface-2); font-size: 13px;
+  margin-top: auto; display: flex; align-items: center; gap: 0.5rem;
+  padding: 0.5rem 0.625rem; border-radius: 0.5rem; background: var(--surface-2); font-size: 0.8125rem;
 }
-.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex: none; }
-.dot.running { background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
+.dot { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--muted); flex: none; }
+.dot.running { background: var(--accent); box-shadow: 0 0 0 0.1875rem var(--accent-soft); }
 .dot.starting, .dot.stopping { background: var(--warn); }
 .dot.crashed { background: var(--danger); }
 
-main { padding: 28px 32px 48px; max-width: 1100px; width: 100%; min-width: 0; }
-.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
+main { padding: 1.75rem 2rem 3rem; width: 100%; min-width: 0; }
+.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
 .page-head p { margin: 0; }
 
-.grid { display: grid; gap: 16px; }
-.grid.two { grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr)); }
+.grid { display: grid; gap: 1rem; }
+.grid.two { grid-template-columns: repeat(auto-fit, minmax(min(20rem, 100%), 1fr)); }
 .card {
   background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
-  padding: 18px 20px;
+  padding: 1.125rem 1.25rem;
 }
-.card + .card { margin-top: 16px; }
+.card + .card { margin-top: 1rem; }
 .grid > .card + .card { margin-top: 0; }
 
-.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
+.row { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
 .row.spread { justify-content: space-between; }
-.stack { display: flex; flex-direction: column; gap: 10px; }
+.stack { display: flex; flex-direction: column; gap: 0.625rem; }
 
-dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
+dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: 0.375rem 1rem; margin: 0; }
 dl.kv dt { color: var(--muted); }
 dl.kv dd { margin: 0; overflow-wrap: anywhere; }
 
-.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(150px, 100%), 1fr)); gap: 12px; }
-.stat { background: var(--surface-2); border-radius: 8px; padding: 12px 14px; }
-.stat .v { font-size: 22px; font-weight: 650; font-variant-numeric: tabular-nums; }
-.stat .l { color: var(--muted); font-size: 12.5px; }
+.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(9.375rem, 100%), 1fr)); gap: 0.75rem; }
+.stat { background: var(--surface-2); border-radius: 0.5rem; padding: 0.75rem 0.875rem; }
+.stat .v { font-size: 1.375rem; font-weight: 650; font-variant-numeric: tabular-nums; }
+.stat .l { color: var(--muted); font-size: 0.7813rem; }
 .stat.bad .v { color: var(--danger); }
 
 /* controls */
 .btn {
   appearance: none; border: 1px solid var(--border); background: var(--surface);
-  color: var(--text); padding: 7px 14px; border-radius: 8px; font: inherit; cursor: pointer;
-  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
+  color: var(--text); padding: 0.4375rem 0.875rem; border-radius: 0.5rem; font: inherit; cursor: pointer;
+  display: inline-flex; align-items: center; gap: 0.375rem; white-space: nowrap;
 }
 .btn:hover:not(:disabled) { background: var(--surface-2); }
 .btn:disabled { opacity: .5; cursor: default; }
@@ -113,42 +117,42 @@ dl.kv dd { margin: 0; overflow-wrap: anywhere; }
 .btn.primary:hover:not(:disabled) { filter: brightness(1.06); background: var(--accent); }
 .btn.danger { color: var(--danger); }
 .btn.danger:hover:not(:disabled) { background: var(--danger-soft); }
-.btn.small { padding: 3px 9px; font-size: 12.5px; }
+.btn.small { padding: 0.1875rem 0.5625rem; font-size: 0.7813rem; }
 .btn.link { border: none; background: none; color: var(--accent); padding: 0; }
 
 input[type=text], input[type=password], input[type=number], input[type=url], select, textarea {
   font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border);
-  border-radius: 8px; padding: 7px 10px; width: 100%;
+  border-radius: 0.5rem; padding: 0.4375rem 0.625rem; width: 100%;
 }
-textarea { resize: vertical; min-height: 70px; }
+textarea { resize: vertical; min-height: 4.375rem; }
 input:focus, select:focus, textarea:focus, .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
-label.field { display: flex; flex-direction: column; gap: 4px; }
-label.field > span { font-weight: 550; font-size: 13px; }
+label.field { display: flex; flex-direction: column; gap: 0.25rem; }
+label.field > span { font-weight: 550; font-size: 0.8125rem; }
 label.field > small { color: var(--muted); }
-label.check { display: flex; align-items: center; gap: 8px; }
-.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); gap: 14px; }
+label.check { display: flex; align-items: center; gap: 0.5rem; }
+.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(15rem, 100%), 1fr)); gap: 0.875rem; }
 
 /* tables */
 table { width: 100%; border-collapse: collapse; }
-th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
-th { color: var(--muted); font-weight: 550; font-size: 12.5px; }
+th, td { text-align: left; padding: 0.5rem 0.625rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
+th { color: var(--muted); font-weight: 550; font-size: 0.7813rem; }
 tr:last-child td { border-bottom: none; }
 td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
 td.actions { text-align: right; white-space: nowrap; }
 tr.clickable { cursor: pointer; }
 tr.clickable:hover td { background: var(--surface-2); }
-.empty { text-align: center; color: var(--muted); padding: 28px 10px; }
+.empty { text-align: center; color: var(--muted); padding: 1.75rem 0.625rem; }
 
-.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; background: var(--surface-2); color: var(--muted); }
+.badge { display: inline-block; padding: 1px 0.5rem; border-radius: 62.4375rem; font-size: 0.75rem; background: var(--surface-2); color: var(--muted); }
 .badge.ok { background: var(--accent-soft); color: var(--accent); }
 .badge.warn { background: var(--warn-soft); color: var(--warn); }
 
-.banner { border-radius: var(--radius); padding: 12px 16px; margin-bottom: 16px; display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
+.banner { border-radius: var(--radius); padding: 0.75rem 1rem; margin-bottom: 1rem; display: flex; gap: 0.75rem; align-items: center; justify-content: space-between; flex-wrap: wrap; }
 .banner.warn { background: var(--warn-soft); color: var(--text); border: 1px solid color-mix(in srgb, var(--warn) 40%, transparent); }
 .banner.info { background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent); }
 
-.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; font-size: 15px; }
-.crumbs button { border: none; background: none; color: var(--accent); cursor: pointer; font: inherit; padding: 2px 4px; border-radius: 4px; }
+.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem; font-size: 0.9375rem; }
+.crumbs button { border: none; background: none; color: var(--accent); cursor: pointer; font: inherit; padding: 2px 0.25rem; border-radius: 0.25rem; }
 .crumbs button:hover { background: var(--surface-2); }
 .crumbs .sep { color: var(--muted); }
 
@@ -159,45 +163,45 @@ tr.clickable:hover td { background: var(--surface-2); }
   border-radius: var(--radius); font-weight: 600; color: var(--accent);
 }
 
-.uploads { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
-.upload { display: grid; grid-template-columns: 1fr 160px 70px; gap: 10px; align-items: center; font-size: 13px; }
-.bar { height: 6px; background: var(--surface-2); border-radius: 3px; overflow: hidden; }
+.uploads { display: flex; flex-direction: column; gap: 0.375rem; margin-bottom: 0.75rem; }
+.upload { display: grid; grid-template-columns: 1fr 10rem 4.375rem; gap: 0.625rem; align-items: center; font-size: 0.8125rem; }
+.bar { height: 0.375rem; background: var(--surface-2); border-radius: 0.1875rem; overflow: hidden; }
 .bar > i { display: block; height: 100%; background: var(--accent); width: 0; transition: width .2s; }
 
 .logs {
-  font-family: var(--mono); font-size: 12px; background: var(--surface); border: 1px solid var(--border);
-  border-radius: var(--radius); padding: 12px; height: calc(100vh - 170px); overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere;
+  font-family: var(--mono); font-size: 0.75rem; background: var(--surface); border: 1px solid var(--border);
+  border-radius: var(--radius); padding: 0.75rem; height: calc(100vh - 10.625rem); overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere;
 }
 .logs .err { color: var(--danger); }
 .logs .sys { color: var(--muted); font-style: italic; }
 
-.secret { display: flex; gap: 6px; align-items: center; }
-.secret code { background: var(--surface-2); padding: 3px 8px; border-radius: 6px; overflow-wrap: anywhere; }
-pre.snippet { background: var(--surface-2); padding: 10px 12px; border-radius: 8px; overflow: auto; margin: 0; font-family: var(--mono); font-size: 12px; }
+.secret { display: flex; gap: 0.375rem; align-items: center; }
+.secret code { background: var(--surface-2); padding: 0.1875rem 0.5rem; border-radius: 0.375rem; overflow-wrap: anywhere; }
+pre.snippet { background: var(--surface-2); padding: 0.625rem 0.75rem; border-radius: 0.5rem; overflow: auto; margin: 0; font-family: var(--mono); font-size: 0.75rem; }
 
-.phrase { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; counter-reset: w; }
-.phrase span { background: var(--surface-2); padding: 6px 8px; border-radius: 6px; font-family: var(--mono); counter-increment: w; }
+.phrase { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.375rem; counter-reset: w; }
+.phrase span { background: var(--surface-2); padding: 0.375rem 0.5rem; border-radius: 0.375rem; font-family: var(--mono); counter-increment: w; }
 .phrase span::before { content: counter(w) ". "; color: var(--muted); }
 
-.steps { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
-.steps span { padding: 3px 10px; border-radius: 999px; background: var(--surface-2); color: var(--muted); font-size: 12.5px; }
+.steps { display: flex; gap: 0.5rem; margin-bottom: 1rem; flex-wrap: wrap; }
+.steps span { padding: 0.1875rem 0.625rem; border-radius: 62.4375rem; background: var(--surface-2); color: var(--muted); font-size: 0.7813rem; }
 .steps span.on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
 
 /* modal + toasts */
-.modal-backdrop { position: fixed; inset: 0; background: rgb(0 0 0 / .45); display: grid; place-items: center; padding: 16px; z-index: 25; }
-.modal { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 22px; width: min(560px, 100%); max-height: 90vh; overflow: auto; }
-.modal h2 { margin-bottom: 14px; }
-.modal .foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
+.modal-backdrop { position: fixed; inset: 0; background: rgb(0 0 0 / .45); display: grid; place-items: center; padding: 1rem; z-index: 25; }
+.modal { background: var(--surface); border: 1px solid var(--border); border-radius: 0.75rem; padding: 1.375rem; width: min(35rem, 100%); max-height: 90vh; overflow: auto; }
+.modal h2 { margin-bottom: 0.875rem; }
+.modal .foot { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 1.125rem; }
 
-.toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 20; }
-.toast { background: var(--text); color: var(--bg); padding: 10px 14px; border-radius: 8px; max-width: 380px; box-shadow: 0 6px 20px rgb(0 0 0 / .2); }
+.toasts { position: fixed; right: 1rem; bottom: 1rem; display: flex; flex-direction: column; gap: 0.5rem; z-index: 20; }
+.toast { background: var(--text); color: var(--bg); padding: 0.625rem 0.875rem; border-radius: 0.5rem; max-width: 23.75rem; box-shadow: 0 0.375rem 1.25rem rgb(0 0 0 / .2); }
 .toast.error { background: var(--danger); color: #fff; }
 
-.signin { display: grid; place-items: center; min-height: 100%; padding: 16px; }
-.signin-card { width: min(340px, 100%); display: flex; flex-direction: column; gap: 12px; align-items: stretch; text-align: center; }
+.signin { display: grid; place-items: center; min-height: 100%; padding: 1rem; }
+.signin-card { width: min(21.25rem, 100%); display: flex; flex-direction: column; gap: 0.75rem; align-items: stretch; text-align: center; }
 .signin-card img { align-self: center; }
 
-.spinner { width: 14px; height: 14px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .8s linear infinite; display: inline-block; }
+.spinner { width: 0.875rem; height: 0.875rem; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .8s linear infinite; display: inline-block; }
 @keyframes spin { to { transform: rotate(360deg); } }
 
 .nav-toggle, .brand .here { display: none; }
@@ -207,90 +211,90 @@ pre.snippet { background: var(--surface-2); padding: 10px 12px; border-radius: 8
 @media (max-width: 760px) {
   .app { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
   .sidebar { position: sticky; top: 0; z-index: 5; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center;
-    padding: 8px 12px; gap: 8px; border-right: none; border-bottom: 1px solid var(--border); }
-  .brand { flex: 1; min-width: 0; padding: 0; font-size: 15px; gap: 8px; }
-  .brand img { width: 22px; height: 22px; }
+    padding: 0.5rem 0.75rem; gap: 0.5rem; border-right: none; border-bottom: 1px solid var(--border); }
+  .brand { flex: 1; min-width: 0; padding: 0; font-size: 0.9375rem; gap: 0.5rem; }
+  .brand img { width: 1.375rem; height: 1.375rem; }
   .brand .here { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-weight: 500; }
   .brand .here:not(:empty)::before { content: "· "; }
-  .nav-toggle { display: inline-grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--border); border-radius: 8px;
-    background: var(--surface); color: var(--text); font: inherit; font-size: 17px; cursor: pointer; }
+  .nav-toggle { display: inline-grid; place-items: center; width: 2.125rem; height: 2.125rem; border: 1px solid var(--border); border-radius: 0.5rem;
+    background: var(--surface); color: var(--text); font: inherit; font-size: 1.0625rem; cursor: pointer; }
   /* ☰ opens the menu over the page, from the top-right corner. */
-  nav { display: none; position: absolute; top: calc(100% + 4px); right: 10px; z-index: 30; width: min(240px, calc(100vw - 20px));
-    flex-direction: column; padding: 6px; background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
-    box-shadow: 0 10px 28px rgb(0 0 0 / .22); }
+  nav { display: none; position: absolute; top: calc(100% + 0.25rem); right: 0.625rem; z-index: 30; width: min(15rem, calc(100vw - 1.25rem));
+    flex-direction: column; padding: 0.375rem; background: var(--surface); border: 1px solid var(--border); border-radius: 0.625rem;
+    box-shadow: 0 0.625rem 1.75rem rgb(0 0 0 / .22); }
   .sidebar.nav-open nav { display: flex; }
   .sidebar.nav-open .nav-toggle { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
-  nav .nav-sep { display: block; height: 1px; background: var(--border); margin: 6px 4px; }
+  nav .nav-sep { display: block; height: 1px; background: var(--border); margin: 0.375rem 0.25rem; }
   nav a.nav-action { display: block; color: var(--muted); }
   .host-controls { display: none; }
-  .daemon-pill { margin: 0; padding: 5px 9px; font-size: 12px; }
-  main { padding: 16px 14px 40px; }
-  .upload { grid-template-columns: 1fr 80px 50px; }
+  .daemon-pill { margin: 0; padding: 0.3125rem 0.5625rem; font-size: 0.75rem; }
+  main { padding: 1rem 0.875rem 2.5rem; }
+  .upload { grid-template-columns: 1fr 5rem 3.125rem; }
   .hide-sm, .wide-only { display: none; }
-  .page-head { margin-bottom: 14px; }
+  .page-head { margin-bottom: 0.875rem; }
   .page-head > .row { width: 100%; }
   .page-head > .row > label { flex: 1 1 100%; min-width: 0; }
   .page-head h1:only-child, .page-head > div > h1 { display: none; }
-  .tiles { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
+  .tiles { grid-template-columns: repeat(auto-fill, minmax(8.75rem, 1fr)); }
   .page-head > .row > label > span[style] { width: auto !important; flex: 1; min-width: 0; }
-  .card { padding: 14px; }
-  h1 { font-size: 19px; }
-  th, td { padding: 7px 6px; }
-  .modal { padding: 16px; }
-  .modal-backdrop { padding: 8px; }
+  .card { padding: 0.875rem; }
+  h1 { font-size: 1.1875rem; }
+  th, td { padding: 0.4375rem 0.375rem; }
+  .modal { padding: 1rem; }
+  .modal-backdrop { padding: 0.5rem; }
 }
 @media (max-width: 420px) {
   .daemon-pill .label { display: none; }
-  .daemon-pill { padding: 8px; }
+  .daemon-pill { padding: 0.5rem; }
 }
 
 /* Theseus sidebar: widen / open-in-tab controls */
-.host-controls { display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; }
+.host-controls { display: flex; gap: 0.375rem; flex-wrap: wrap; margin-top: auto; }
 .host-controls + .daemon-pill { margin-top: 0; }
 @media (max-width: 760px) { .host-controls { display: none; } }
-@media (max-width: 420px) { .host-controls .btn { padding: 3px 7px; } }
+@media (max-width: 420px) { .host-controls .btn { padding: 0.1875rem 0.4375rem; } }
 
 /* Narrow hosts (Theseus sidebar): never scroll sideways. */
 html, body { overflow-x: hidden; }
 .card { min-width: 0; }
 
 /* Get started wizard */
-.wizard { max-width: 720px; }
-.wizard h2 { margin-top: 6px; }
-.wizard-progress { margin-bottom: 18px; }
-.wizard-progress .bar { margin-top: 6px; }
-.wizard-nav { margin-top: 22px; padding-top: 14px; border-top: 1px solid var(--border); }
-.wizard-list { margin: 0 0 8px 1.2em; padding: 0; display: grid; gap: 4px; }
+.wizard { max-width: 45rem; }
+.wizard h2 { margin-top: 0.375rem; }
+.wizard-progress { margin-bottom: 1.125rem; }
+.wizard-progress .bar { margin-top: 0.375rem; }
+.wizard-nav { margin-top: 1.375rem; padding-top: 0.875rem; border-top: 1px solid var(--border); }
+.wizard-list { margin: 0 0 0.5rem 1.2em; padding: 0; display: grid; gap: 0.25rem; }
 
-.account-line { margin-top: 4px; }
+.account-line { margin-top: 0.25rem; }
 .account-line a { color: var(--accent); }
 
 /* Buckets as folder tiles */
-.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(170px, 100%), 1fr)); gap: 12px; }
-.tile { border: 1px solid var(--border); border-radius: 10px; padding: 14px; cursor: pointer; display: flex; flex-direction: column; gap: 6px; background: var(--surface-2); }
+.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(10.625rem, 100%), 1fr)); gap: 0.75rem; }
+.tile { border: 1px solid var(--border); border-radius: 0.625rem; padding: 0.875rem; cursor: pointer; display: flex; flex-direction: column; gap: 0.375rem; background: var(--surface-2); }
 .tile:hover, .tile:focus-visible { border-color: var(--accent); outline: none; }
-.tile-icon { font-size: 34px; line-height: 1; }
+.tile-icon { font-size: 2.125rem; line-height: 1; }
 .tile-name { font-weight: 600; overflow-wrap: anywhere; }
-.tile-actions { display: flex; gap: 6px; margin-top: 4px; }
+.tile-actions { display: flex; gap: 0.375rem; margin-top: 0.25rem; }
 
 /* Viewer */
-.modal:has(.viewer) { width: min(920px, 100%); }
-.viewer-media { display: block; max-width: 100%; max-height: 70vh; margin: 0 auto; border-radius: 8px; background: var(--surface-2); }
+.modal:has(.viewer) { width: min(57.5rem, 100%); }
+.viewer-media { display: block; max-width: 100%; max-height: 70vh; margin: 0 auto; border-radius: 0.5rem; background: var(--surface-2); }
 .viewer-audio { width: 100%; }
 .viewer-text { max-height: 60vh; white-space: pre-wrap; overflow-wrap: anywhere; }
 
 /* Drive icon (a bucket): a small disk with a status light */
-.drive-icon { width: 46px; height: 30px; border-radius: 7px; position: relative;
+.drive-icon { width: 2.875rem; height: 1.875rem; border-radius: 0.4375rem; position: relative;
   background: linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
   border: 2px solid var(--muted); box-shadow: inset 0 -7px 0 color-mix(in srgb, var(--muted) 25%, transparent); }
-.drive-icon::after { content: ""; position: absolute; right: 7px; bottom: 3px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
+.drive-icon::after { content: ""; position: absolute; right: 0.4375rem; bottom: 0.1875rem; width: 0.375rem; height: 0.375rem; border-radius: 50%; background: var(--accent); }
 .tile:hover .drive-icon { border-color: var(--accent); }
 
 /* View types: Icons / List / Details */
-.view-bar { display: flex; justify-content: flex-end; margin: -6px 0 8px; }
+.view-bar { display: flex; justify-content: flex-end; margin: -6px 0 0.5rem; }
 .view-bar:empty { display: none; }
-.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: var(--surface); }
-.seg button { appearance: none; border: none; background: none; color: var(--muted); font: inherit; font-size: 15px; line-height: 1; padding: 6px 10px; cursor: pointer; }
+.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 0.5rem; overflow: hidden; background: var(--surface); }
+.seg button { appearance: none; border: none; background: none; color: var(--muted); font: inherit; font-size: 0.9375rem; line-height: 1; padding: 0.375rem 0.625rem; cursor: pointer; }
 .seg button + button { border-left: 1px solid var(--border); }
 .seg button:hover { background: var(--surface-2); color: var(--text); }
 .seg button.on { background: var(--accent-soft); color: var(--accent); }
@@ -298,100 +302,100 @@ html, body { overflow-x: hidden; }
 table.files td.name { max-width: 0; width: 100%; white-space: normal; }
 table.files td, table.files th { white-space: nowrap; }
 table.files td.name > * { vertical-align: middle; }
-table.files td.name > .drive-icon { display: inline-block; margin-right: 8px; }
-.cell-name { display: flex; align-items: center; gap: 8px; min-width: 0; }
+table.files td.name > .drive-icon { display: inline-block; margin-right: 0.5rem; }
+.cell-name { display: flex; align-items: center; gap: 0.5rem; min-width: 0; }
 /* File names wrap to two lines at most, then end in "…" */
 .cell-name .label, ul.rows .label { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
   overflow-wrap: anywhere; line-height: 1.35; min-width: 0; }
 .ficon { flex: none; width: 1.4em; text-align: center; }
-.drive-icon.sm { width: 26px; height: 17px; border-radius: 4px; border-width: 1.5px; box-shadow: inset 0 -4px 0 color-mix(in srgb, var(--muted) 25%, transparent); flex: none; }
-.drive-icon.sm::after { width: 4px; height: 4px; right: 4px; bottom: 2px; }
+.drive-icon.sm { width: 1.625rem; height: 1.0625rem; border-radius: 0.25rem; border-width: 1.5px; box-shadow: inset 0 -4px 0 color-mix(in srgb, var(--muted) 25%, transparent); flex: none; }
+.drive-icon.sm::after { width: 0.25rem; height: 0.25rem; right: 0.25rem; bottom: 2px; }
 
 ul.rows { list-style: none; margin: 0; padding: 0; }
-ul.rows li { display: flex; align-items: center; gap: 10px; padding: 6px 6px; border-radius: 6px; min-width: 0; }
+ul.rows li { display: flex; align-items: center; gap: 0.625rem; padding: 0.375rem 0.375rem; border-radius: 0.375rem; min-width: 0; }
 ul.rows li + li { border-top: 1px solid var(--border); }
 ul.rows li:hover, ul.rows li:focus-visible { background: var(--surface-2); outline: none; }
 ul.rows .label { flex: 1; }
-ul.rows .meta { color: var(--muted); font-size: 12.5px; white-space: nowrap; font-variant-numeric: tabular-nums; }
+ul.rows .meta { color: var(--muted); font-size: 0.7813rem; white-space: nowrap; font-variant-numeric: tabular-nums; }
 .clickable { cursor: pointer; }
 tr.clickable:focus-visible td { background: var(--surface-2); }
 tr.clickable:focus-visible { outline: none; }
 
 .tile { position: relative; }
-.tile-more { position: absolute; top: 6px; right: 6px; }
+.tile-more { position: absolute; top: 0.375rem; right: 0.375rem; }
 .tile .tile-more .more { opacity: .55; }
 .tile:hover .tile-more .more, .tile:focus-within .tile-more .more { opacity: 1; }
-.tiles.files { grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 8px; }
-.tiles.files .tile { padding: 8px; gap: 4px; align-items: stretch; text-align: center; }
-.tiles.files .tile-name { font-weight: 500; font-size: 13px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow-wrap: anywhere; }
-.thumb { aspect-ratio: 4 / 3; border-radius: 6px; background: var(--surface); display: grid; place-items: center; overflow: hidden; }
+.tiles.files { grid-template-columns: repeat(auto-fill, minmax(6rem, 1fr)); gap: 0.5rem; }
+.tiles.files .tile { padding: 0.5rem; gap: 0.25rem; align-items: stretch; text-align: center; }
+.tiles.files .tile-name { font-weight: 500; font-size: 0.8125rem; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow-wrap: anywhere; }
+.thumb { aspect-ratio: 4 / 3; border-radius: 0.375rem; background: var(--surface); display: grid; place-items: center; overflow: hidden; }
 .thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
-.big-icon { font-size: 38px; line-height: 1; }
+.big-icon { font-size: 2.375rem; line-height: 1; }
 .usage { display: block; white-space: nowrap; }
 
-.more { padding: 1px 8px; font-size: 15px; line-height: 1.2; }
-.menu { position: fixed; z-index: 30; min-width: 150px; background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
-  box-shadow: 0 8px 24px rgb(0 0 0 / .18); padding: 4px; display: flex; flex-direction: column; }
-.menu button { appearance: none; border: none; background: none; color: var(--text); font: inherit; text-align: left; padding: 7px 10px; border-radius: 6px; cursor: pointer; }
+.more { padding: 1px 0.5rem; font-size: 0.9375rem; line-height: 1.2; }
+.menu { position: fixed; z-index: 30; min-width: 9.375rem; background: var(--surface); border: 1px solid var(--border); border-radius: 0.5rem;
+  box-shadow: 0 0.5rem 1.5rem rgb(0 0 0 / .18); padding: 0.25rem; display: flex; flex-direction: column; }
+.menu button { appearance: none; border: none; background: none; color: var(--text); font: inherit; text-align: left; padding: 0.4375rem 0.625rem; border-radius: 0.375rem; cursor: pointer; }
 .menu button:hover, .menu button:focus-visible { background: var(--surface-2); outline: none; }
 .menu button.danger { color: var(--danger); }
 
 /* Music player, docked at the bottom; stays while you browse */
-.player { position: fixed; left: 0; right: 0; bottom: 0; z-index: 15; display: flex; align-items: center; gap: 12px;
-  padding: 8px 14px; background: var(--surface); border-top: 1px solid var(--border); box-shadow: 0 -4px 16px rgb(0 0 0 / .12); }
-@media (min-width: 761px) { .player { left: 220px; } }
-body.has-player main { padding-bottom: 96px; }
-body.has-player .toasts { bottom: 84px; }
+.player { position: fixed; left: 0; right: 0; bottom: 0; z-index: 15; display: flex; align-items: center; gap: 0.75rem;
+  padding: 0.5rem 0.875rem; background: var(--surface); border-top: 1px solid var(--border); box-shadow: 0 -4px 1rem rgb(0 0 0 / .12); }
+@media (min-width: 761px) { .player { left: 13.75rem; } }
+body.has-player main { padding-bottom: 6rem; }
+body.has-player .toasts { bottom: 5.25rem; }
 .pl-controls { display: flex; align-items: center; gap: 2px; flex: none; }
-.pl-btn { appearance: none; border: none; background: none; color: var(--text); font: inherit; font-size: 16px; width: 32px; height: 32px;
+.pl-btn { appearance: none; border: none; background: none; color: var(--text); font: inherit; font-size: 1rem; width: 2rem; height: 2rem;
   border-radius: 50%; cursor: pointer; display: grid; place-items: center; }
 .pl-btn:hover:not(:disabled) { background: var(--surface-2); }
 .pl-btn:disabled { opacity: .35; cursor: default; }
-.pl-main { width: 38px; height: 38px; background: var(--accent); color: var(--accent-ink); font-size: 15px; }
+.pl-main { width: 2.375rem; height: 2.375rem; background: var(--accent); color: var(--accent-ink); font-size: 0.9375rem; }
 .pl-main:hover:not(:disabled) { background: var(--accent); filter: brightness(1.08); }
 .pl-info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
-.pl-head { display: flex; align-items: baseline; gap: 8px; min-width: 0; }
+.pl-head { display: flex; align-items: baseline; gap: 0.5rem; min-width: 0; }
 .pl-title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
 .pl-where { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1 1 0; min-width: 0; }
-.pl-seek { display: flex; align-items: center; gap: 8px; }
+.pl-seek { display: flex; align-items: center; gap: 0.5rem; }
 .pl-seek input { flex: 1; min-width: 0; accent-color: var(--accent); margin: 0; }
-.pl-time { font-size: 11.5px; color: var(--muted); font-variant-numeric: tabular-nums; min-width: 2.6em; text-align: center; }
+.pl-time { font-size: 0.7188rem; color: var(--muted); font-variant-numeric: tabular-nums; min-width: 2.6em; text-align: center; }
 @media (max-width: 420px) {
-  .player { gap: 6px; padding: 6px 8px; }
+  .player { gap: 0.375rem; padding: 0.375rem 0.5rem; }
   .pl-where { display: none; }
-  .pl-btn { width: 28px; height: 28px; font-size: 14px; }
-  .pl-main { width: 34px; height: 34px; }
+  .pl-btn { width: 1.75rem; height: 1.75rem; font-size: 0.875rem; }
+  .pl-main { width: 2.125rem; height: 2.125rem; }
 }
 
 /* Footer: pithos.sia, the version and the updater (like Aegis's) */
-.brandfoot { position: fixed; left: 0; right: 0; bottom: 0; z-index: 14; height: 28px; display: flex; align-items: center;
-  justify-content: space-between; padding: 0 12px; background: var(--surface); border-top: 1px solid var(--border);
-  font-size: 11.5px; color: var(--muted); }
-@media (min-width: 761px) { .brandfoot { left: 220px; } }
-.brandlink { display: inline-flex; align-items: center; gap: 5px; color: var(--muted); text-decoration: none; padding: 2px 4px; border-radius: 4px; }
+.brandfoot { position: fixed; left: 0; right: 0; bottom: 0; z-index: 14; height: 1.75rem; display: flex; align-items: center;
+  justify-content: space-between; padding: 0 0.75rem; background: var(--surface); border-top: 1px solid var(--border);
+  font-size: 0.7188rem; color: var(--muted); }
+@media (min-width: 761px) { .brandfoot { left: 13.75rem; } }
+.brandlink { display: inline-flex; align-items: center; gap: 0.3125rem; color: var(--muted); text-decoration: none; padding: 2px 0.25rem; border-radius: 0.25rem; }
 .brandlink:hover { color: var(--accent); }
-.brandfoot-right { display: inline-flex; align-items: center; gap: 8px; }
+.brandfoot-right { display: inline-flex; align-items: center; gap: 0.5rem; }
 .brandver { font-variant-numeric: tabular-nums; letter-spacing: .3px; }
 .brandcheck { appearance: none; background: none; border: 0; color: var(--muted); cursor: pointer; padding: 0 2px; font: inherit;
-  font-size: 13px; line-height: 1; opacity: .75; }
+  font-size: 0.8125rem; line-height: 1; opacity: .75; }
 .brandcheck:hover { color: var(--accent); opacity: 1; }
 .brandcheck.spin { animation: spin 1s linear infinite; }
-.brandupd { appearance: none; border: 0; font: inherit; font-size: 11.5px; font-weight: 600; padding: 2px 9px; border-radius: 999px;
+.brandupd { appearance: none; border: 0; font: inherit; font-size: 0.7188rem; font-weight: 600; padding: 2px 0.5625rem; border-radius: 62.4375rem;
   background: var(--accent-soft); color: var(--accent); cursor: pointer; white-space: nowrap; }
 .brandupd:disabled { cursor: default; }
 .brandupd.ok, .brandupd.wait { background: var(--surface-2); color: var(--muted); font-weight: 500; }
 .brandupd.err { background: var(--danger-soft); color: var(--danger); font-weight: 500; }
-body.has-foot main { padding-bottom: 64px; }
-body.has-foot .player { bottom: 28px; }
-body.has-foot .toasts { bottom: 44px; }
-body.has-foot.has-player main { padding-bottom: 124px; }
-body.has-foot.has-player .toasts { bottom: 112px; }
+body.has-foot main { padding-bottom: 4rem; }
+body.has-foot .player { bottom: 1.75rem; }
+body.has-foot .toasts { bottom: 2.75rem; }
+body.has-foot.has-player main { padding-bottom: 7.75rem; }
+body.has-foot.has-player .toasts { bottom: 7rem; }
 
 /* Download / Share as icons on narrow screens */
 .nav-sep, .nav-action { display: none; }
 .narrow-only { display: none; }
 .icon-row { gap: 2px; }
-.btn.icon { padding: 4px 6px; color: var(--muted); }
+.btn.icon { padding: 0.25rem 0.375rem; color: var(--muted); }
 .btn.icon:hover:not(:disabled) { color: var(--accent); }
 .btn.icon svg { display: block; }
 .row-actions { display: inline-flex; align-items: center; gap: 2px; flex: none; }
@@ -401,87 +405,87 @@ body.has-foot.has-player .toasts { bottom: 112px; }
 }
 
 /* Player volume */
-.pl-volume { position: relative; display: flex; align-items: center; gap: 4px; flex: none; }
+.pl-volume { position: relative; display: flex; align-items: center; gap: 0.25rem; flex: none; }
 .pl-volpop { display: flex; align-items: center; }
 .pl-volpop > .pl-btn { display: none; }
-.pl-vol { width: 90px; accent-color: var(--accent); margin: 0; }
-.pl-volbtn { font-size: 15px; }
+.pl-vol { width: 5.625rem; accent-color: var(--accent); margin: 0; }
+.pl-volbtn { font-size: 0.9375rem; }
 @media (max-width: 760px) {
-  .pl-volpop { display: none; position: absolute; bottom: calc(100% + 10px); right: -6px; padding: 8px 10px; gap: 6px;
-    background: var(--surface); border: 1px solid var(--border); border-radius: 10px; box-shadow: 0 8px 24px rgb(0 0 0 / .2); }
+  .pl-volpop { display: none; position: absolute; bottom: calc(100% + 0.625rem); right: -6px; padding: 0.5rem 0.625rem; gap: 0.375rem;
+    background: var(--surface); border: 1px solid var(--border); border-radius: 0.625rem; box-shadow: 0 0.5rem 1.5rem rgb(0 0 0 / .2); }
   .pl-volume.open .pl-volpop { display: flex; }
   .pl-volpop > .pl-btn { display: grid; }
-  .pl-vol { width: 120px; }
+  .pl-vol { width: 7.5rem; }
 }
 /* "More options" disclosure in dialogs */
-details.more-opts > summary { cursor: pointer; color: var(--muted); font-size: 13px; }
+details.more-opts > summary { cursor: pointer; color: var(--muted); font-size: 0.8125rem; }
 details.more-opts > summary:hover { color: var(--text); }
 
 /* Free space on the Sia account */
-.space { margin-top: 6px; max-width: 420px; }
-.space-bar { margin-top: 4px; height: 6px; }
+.space { margin-top: 0.375rem; max-width: 26.25rem; }
+.space-bar { margin-top: 0.25rem; height: 0.375rem; }
 .space-bar.full > i { background: var(--warn); }
 
 /* Navigation: the Accounts card first, then pages, then the s3d group */
-nav a.nav-account { display: flex; flex-direction: column; gap: 2px; padding: 9px 10px; margin-bottom: 6px;
-  border: 1px solid var(--border); border-radius: 10px; background: var(--surface-2); min-width: 0; }
+nav a.nav-account { display: flex; flex-direction: column; gap: 2px; padding: 0.5625rem 0.625rem; margin-bottom: 0.375rem;
+  border: 1px solid var(--border); border-radius: 0.625rem; background: var(--surface-2); min-width: 0; }
 nav a.nav-account:hover { border-color: var(--accent); background: var(--surface-2); }
 nav a.nav-account.active { border-color: var(--accent); background: var(--accent-soft); color: var(--text); font-weight: 400; }
-.na-label { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
+.na-label { font-size: 0.6875rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
 nav a.nav-account.active .na-label { color: var(--accent); }
 .na-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
-.na-space { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); margin-top: 2px; }
-.na-space .bar { height: 4px; }
+.na-space { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.75rem; color: var(--muted); margin-top: 2px; }
+.na-space .bar { height: 0.25rem; }
 .na-space .bar.full > i { background: var(--warn); }
-.nav-group { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 12px 10px 4px; }
+.nav-group { font-size: 0.6875rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 0.75rem 0.625rem 0.25rem; }
 
 /* Full page / Back to sidebar as an icon beside the menu button (compact bar) */
 .bar-btn { display: none; }
 @media (max-width: 760px) {
-  .bar-btn { display: inline-grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--border); border-radius: 8px;
-    background: var(--surface); color: var(--text); font: inherit; font-size: 16px; cursor: pointer; }
+  .bar-btn { display: inline-grid; place-items: center; width: 2.125rem; height: 2.125rem; border: 1px solid var(--border); border-radius: 0.5rem;
+    background: var(--surface); color: var(--text); font: inherit; font-size: 1rem; cursor: pointer; }
   .bar-btn:hover { border-color: var(--accent); color: var(--accent); }
 }
 
 /* Account switcher on the Accounts page */
-.acct-tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(220px, 100%), 1fr)); gap: 10px; }
-.acct-tile { display: flex; flex-direction: column; gap: 4px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-2); min-width: 0; align-items: flex-start; }
+.acct-tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(13.75rem, 100%), 1fr)); gap: 0.625rem; }
+.acct-tile { display: flex; flex-direction: column; gap: 0.25rem; padding: 0.75rem; border: 1px solid var(--border); border-radius: 0.625rem; background: var(--surface-2); min-width: 0; align-items: flex-start; }
 .acct-tile .row.spread { width: 100%; }
 .acct-tile.current { border-color: var(--accent); background: var(--accent-soft); }
 .acct-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 100%; }
 .acct-tile .btn { margin-top: auto; }
 .acct-tile.add { appearance: none; font: inherit; color: var(--text); cursor: pointer; border-style: dashed; background: transparent; text-align: left; justify-content: center; }
 .acct-tile.add:hover { border-color: var(--accent); }
-.acct-plus { font-size: 20px; line-height: 1; color: var(--accent); }
+.acct-plus { font-size: 1.25rem; line-height: 1; color: var(--accent); }
 
 /* The Pithos name is a link to Overview */
 a.brand { color: inherit; text-decoration: none; }
 a.brand:hover > span:first-of-type { color: var(--accent); }
 
 /* Drive header: who can read it, and Share, beside the path */
-.crumb-row { gap: 8px; align-items: center; }
-.chip { border: 1px solid var(--border); background: var(--surface-2); color: inherit; font: inherit; font-size: 12.5px; padding: 3px 10px; border-radius: 999px; cursor: pointer; white-space: nowrap; }
+.crumb-row { gap: 0.5rem; align-items: center; }
+.chip { border: 1px solid var(--border); background: var(--surface-2); color: inherit; font: inherit; font-size: 0.7813rem; padding: 0.1875rem 0.625rem; border-radius: 62.4375rem; cursor: pointer; white-space: nowrap; }
 .chip:hover { border-color: var(--accent); }
 .access-chip.private { color: var(--muted); }
 .access-chip.public { color: var(--accent); border-color: var(--accent); }
-@media (max-width: 760px) { .crumb-row { row-gap: 6px; } .chip { font-size: 12px; padding: 2px 8px; } }
+@media (max-width: 760px) { .crumb-row { row-gap: 0.375rem; } .chip { font-size: 0.75rem; padding: 2px 0.5rem; } }
 
 /* Public links in the Share dialogs */
-.link-card { border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; display: flex; flex-direction: column; gap: 6px; background: var(--surface-2); }
+.link-card { border: 1px solid var(--border); border-radius: 0.625rem; padding: 0.625rem 0.75rem; display: flex; flex-direction: column; gap: 0.375rem; background: var(--surface-2); }
 .link-card.fresh { border-color: var(--accent); }
-.link-card .link-url { color: var(--accent); font-family: ui-monospace, Consolas, monospace; font-size: 13px; word-break: break-all; text-decoration: none; }
+.link-card .link-url { color: var(--accent); font-family: ui-monospace, Consolas, monospace; font-size: 0.8125rem; word-break: break-all; text-decoration: none; }
 .link-card .link-url:hover { text-decoration: underline; }
-.link-card code { font-size: 12px; word-break: break-all; }
-.link-card .row { gap: 6px; flex-wrap: wrap; }
-.link-make { gap: 10px; align-items: center; flex-wrap: wrap; }
+.link-card code { font-size: 0.75rem; word-break: break-all; }
+.link-card .row { gap: 0.375rem; flex-wrap: wrap; }
+.link-make { gap: 0.625rem; align-items: center; flex-wrap: wrap; }
 .link-card a.btn { text-decoration: none; }
 
 /* Waiting files that lost their copy (stuck uploads) */
-.banner.stuck .stack { gap: 8px; width: 100%; }
-.stuck-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
-.stuck-list li { display: flex; gap: 8px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
-.stuck-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1 1 220px; }
+.banner.stuck .stack { gap: 0.5rem; width: 100%; }
+.stuck-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.375rem; }
+.stuck-list li { display: flex; gap: 0.5rem; align-items: center; justify-content: space-between; flex-wrap: wrap; }
+.stuck-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1 1 13.75rem; }
 
 /* Toasts with actions (Share: Open / Manage) */
-.toast.action { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
+.toast.action { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
 .toast.action > span { flex: 1 1 auto; }
diff --git a/ui/app.js b/ui/app.js
index adb4567..f3d85de 100644
--- a/ui/app.js
+++ b/ui/app.js
@@ -261,12 +261,18 @@ function addOpenInBrowser() {
   const run = async () => {
     try { await api('POST', '/api/open-in-browser', { route: shareableRoute() }); toast('Opened in your browser'); } catch (e) { fail(e); }
   };
-  const row = h('div', { class: 'host-controls' },
-    h('button', { class: 'btn small', title: 'Open this page of Pithos in your default browser', onclick: run }, '↗ Open in browser'));
-  $('.sidebar').insertBefore(row, $('#daemon-pill'));
+  hostControls().append(h('button', { class: 'btn small', title: 'Open this page of Pithos in your default browser', onclick: run }, '↗ Open in browser'));
   addMenuAction('↗ Open in browser', run);
 }
 
+// The host's buttons (Full page, Back to sidebar, Open in browser) share
+// one row at the foot of the sidebar, just above the s3d status.
+function hostControls() {
+  let row = $('.sidebar .host-controls');
+  if (!row) { row = h('div', { class: 'host-controls' }); $('.sidebar').insertBefore(row, $('#daemon-pill')); }
+  return row;
+}
+
 // Go to a page given as '#/page/parts', whichever kind of address this host uses.
 function navTo(hash) {
   if (!PATH_MODE) { location.hash = hash; return; }
@@ -2715,13 +2721,12 @@ function logs(main) {
 function addSidebarControls() {
   // The panel may have been widened by an earlier Pithos; start narrow.
   bridge.sidebar?.isMax?.().then((max) => { if (max) bridge.sidebar.restore?.() ?? bridge.sidebar.toggleMax?.(); }).catch(() => {});
-  const row = h('div', { class: 'host-controls' },
-    h('button', { class: 'btn small', title: 'Open Pithos in a tab and close this panel', onclick: async () => {
-      try { await bridge.invoke('open-in-tab', { path: hashToPath(location.hash || '#/overview') }); await bridge.sidebar?.close?.(); } catch (e) { fail(e); }
-    } }, '⤢ Full page'));
-  $('.sidebar').insertBefore(row, $('#daemon-pill'));
-  addMenuAction('⤢ Open as full page', () => row.querySelector('button').click());
-  addBarButton('⤢', 'Open as full page', () => row.querySelector('button').click());
+  const btn = h('button', { class: 'btn small', title: 'Open Pithos in a tab and close this panel', onclick: async () => {
+    try { await bridge.invoke('open-in-tab', { path: hashToPath(location.hash || '#/overview') }); await bridge.sidebar?.close?.(); } catch (e) { fail(e); }
+  } }, '⤢ Full page');
+  hostControls().prepend(btn);
+  addMenuAction('⤢ Open as full page', () => btn.click());
+  addBarButton('⤢', 'Open as full page', () => btn.click());
 }
 
 // A one-click icon in the compact top bar, beside ☰ (narrow layouts only).
@@ -2917,14 +2922,13 @@ function setupFooter() {
 
 // The full-page tab opened from the Theseus panel: one button back.
 function addBackToSidebar() {
-  const row = h('div', { class: 'host-controls' },
-    h('button', { class: 'btn small', title: 'Show Pithos in the sidebar again and close this page', onclick: async () => {
-      try { await api('POST', '/api/host/show-panel'); } catch (e) { return fail(e); }
-      window.close(); // works for tabs the add-on opened; harmless otherwise
-    } }, '⇤ Back to sidebar'));
-  $('.sidebar').insertBefore(row, $('#daemon-pill'));
-  addMenuAction('⇤ Back to sidebar', () => row.querySelector('button').click());
-  addBarButton('⇤', 'Back to sidebar', () => row.querySelector('button').click());
+  const btn = h('button', { class: 'btn small', title: 'Show Pithos in the sidebar again and close this page', onclick: async () => {
+    try { await api('POST', '/api/host/show-panel'); } catch (e) { return fail(e); }
+    window.close(); // works for tabs the add-on opened; harmless otherwise
+  } }, '⇤ Back to sidebar');
+  hostControls().prepend(btn);
+  addMenuAction('⇤ Back to sidebar', () => btn.click());
+  addBarButton('⇤', 'Back to sidebar', () => btn.click());
 }
 
 function showSignin() {