diff --git a/src/App.tsx b/src/App.tsx
index 33e4110..36bd543 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -5,11 +5,11 @@ import './styles/App.css';
 import { DSP, DSPStatus, AppPage } from './types/types';
 import TopBar from './components/Topbar/Topbar';
 import DSPPage from './pages/DspPage/DspPage';
-import AddDSPForm from './pages/AddDspPage';
+import AddDSPForm from './pages/AddDspPage/AddDspPage';
 import { useNotifications } from './hooks/useNotifications';
 import Notifications from './components/Notifications/Notifications';
 import { DSPState } from './types/dsp408State';
-import CreditsPage from './pages/CreditsPage';
+import CreditsPage from './pages/CreditsPage/CreditsPage';
 import HomePage from './pages/HomePage/HomePage';
 
 function App() {
diff --git a/src/components/Button/Button.css b/src/components/Button/Button.css
index d9daa3a..c7a59c9 100644
--- a/src/components/Button/Button.css
+++ b/src/components/Button/Button.css
@@ -1,47 +1,36 @@
 .btn {
-  width: 100%;
-  height: 100%;
-
   display: flex;
   align-items: center;
   justify-content: center;
 
   box-sizing: border-box;
 
+  min-height: var(--card-control-height);
+
   padding: 0 var(--space-4);
 
+  border: var(--border-width) solid transparent;
   border-radius: var(--radius-sm);
 
   font-family: var(--font-ui);
-  font-size: 13px;
-  font-weight: 500;
+  font-size: var(--font-md);
+  font-weight: var(--font-weight-medium);
 
   cursor: pointer;
-  border: 1px solid transparent;
 }
 
 .btn:disabled {
-  opacity: 0.45;
+  opacity: var(--disabled-opacity);
   cursor: not-allowed;
 }
 
 .btn-primary {
   background: var(--accent-brand);
-  color: #0d0f12;
-}
-
-.btn-ghost {
-  background: transparent;
-  border-color: var(--border-hairline);
-  color: var(--text-muted);
-}
-
-.btn-toggle {
-  background: transparent;
-  border-color: var(--border-hairline);
-  color: var(--text-muted);
+  color: var(--bg-void);
 }
 
+.btn-ghost,
+.btn-toggle,
 .btn-outline {
   background: transparent;
   border-color: var(--border-hairline);
diff --git a/src/components/Card/Card.css b/src/components/Card/Card.css
index 51ea730..034ba6d 100644
--- a/src/components/Card/Card.css
+++ b/src/components/Card/Card.css
@@ -1,8 +1,13 @@
 .card {
+  width: min(100%, var(--card-width));
+
   background: var(--bg-panel);
+
   border: var(--border-width) solid var(--border-hairline);
   border-radius: var(--radius-lg);
+
   box-shadow: var(--shadow-md);
+
   padding: var(--space-6);
 
   color: var(--text-primary);
@@ -12,5 +17,6 @@
   display: flex;
   flex-direction: column;
 
-  width: clamp(280px, 33.333%, 480px);
+  min-width: 0;
+  box-sizing: border-box;
 }
diff --git a/src/components/Sidebar/Sidebar.css b/src/components/Sidebar/Sidebar.css
index 3808bd5..975734c 100644
--- a/src/components/Sidebar/Sidebar.css
+++ b/src/components/Sidebar/Sidebar.css
@@ -132,7 +132,7 @@
   align-items: center;
 
   font-size: var(--font-size-sm, 13px);
-  font-weight: 600;
+  font-weight: var(--font-weight-semibold);
   color: var(--text-primary);
 
   white-space: nowrap;
diff --git a/src/components/dsp408/ChannelGroup/ChannelGroup.css b/src/components/dsp408/ChannelGroup/ChannelGroup.css
index 2df995f..a12cb6c 100644
--- a/src/components/dsp408/ChannelGroup/ChannelGroup.css
+++ b/src/components/dsp408/ChannelGroup/ChannelGroup.css
@@ -27,7 +27,7 @@
 
   font-family: var(--font-ui);
   font-size: var(--tab-close-font);
-  font-weight: 600;
+  font-weight: var(--font-weight-semibold);
   color: var(--text-muted);
 
   white-space: nowrap;
diff --git a/src/components/dsp408/ConnectionSection/ConnectionSection.css b/src/components/dsp408/ConnectionSection/ConnectionSection.css
index 687e444..cde4110 100644
--- a/src/components/dsp408/ConnectionSection/ConnectionSection.css
+++ b/src/components/dsp408/ConnectionSection/ConnectionSection.css
@@ -1,4 +1,4 @@
-.connection-panel-frame {
+/* .connection-panel-frame {
   width: 33.333%;
   height: 33.333%;
   box-sizing: border-box;
@@ -27,7 +27,7 @@
   align-items: flex-start;
   justify-content: space-between;
   gap: 12px;
-  min-width: 0; /* required so children can actually shrink/ellipsize instead of forcing overflow */
+  min-width: 0;
 }
 
 .panel-header-text {
@@ -41,7 +41,7 @@
   text-overflow: ellipsis;
   margin: 0;
   font-size: 18px;
-  font-weight: 600;
+  font-weight: var(--font-weight-semibold);
 }
 
 .mono {
@@ -54,19 +54,11 @@
   flex-shrink: 0;
 }
 
-.panel-actions {
-  position: absolute;
-  right: 16px;
-  bottom: 16px;
-  margin: 0; /* drop margin-top: auto, no longer needed */
-  padding: 0; /* drop padding-top: 16px, spacing now handled by right/bottom offsets */
-}
-
 .connection-section {
-  position: absolute; /* was: fixed — relative to .dsp-content now */
-  inset: 0; /* replaces top:0; right:0; bottom:0; left:0 */
+  position: absolute;
+  inset: 0;
 
   display: flex;
   justify-content: center;
   align-items: center;
-}
+} */
diff --git a/src/components/dsp408/GainSection/GainSection.css b/src/components/dsp408/GainSection/GainSection.css
index ef15ee5..b81bb87 100644
--- a/src/components/dsp408/GainSection/GainSection.css
+++ b/src/components/dsp408/GainSection/GainSection.css
@@ -74,7 +74,7 @@
 
   font-family: var(--font-ui);
   font-size: 12px;
-  font-weight: 600;
+  font-weight: var(--font-weight-semibold);
 
   padding-bottom: 6px;
 
diff --git a/src/components/dsp408/GainSection/GainSection.tsx b/src/components/dsp408/GainSection/GainSection.tsx
index 378e940..faa10db 100644
--- a/src/components/dsp408/GainSection/GainSection.tsx
+++ b/src/components/dsp408/GainSection/GainSection.tsx
@@ -92,15 +92,7 @@ function GainPanel({
   };
 
   return (
-    <div
-      className="gain-panel-frame"
-      style={
-        {
-          '--panel-w': DESIGN_WIDTH,
-          '--panel-h': DESIGN_HEIGHT,
-        } as React.CSSProperties
-      }
-    >
+    <div className="gain-panel-frame">
       <AutoScale designWidth={DESIGN_WIDTH} designHeight={DESIGN_HEIGHT}>
         <div className="gain-panel" style={{ width: DESIGN_WIDTH, height: DESIGN_HEIGHT }}>
           <div className="gain-panel__title">{title}</div>
diff --git a/src/components/dsp408/GateSection/GateSection.css b/src/components/dsp408/GateSection/GateSection.css
new file mode 100644
index 0000000..b880108
--- /dev/null
+++ b/src/components/dsp408/GateSection/GateSection.css
@@ -0,0 +1,118 @@
+.gate-section {
+  position: absolute;
+  left: 0;
+  right: 0;
+  bottom: 0;
+
+  height: var(--gain-section-height);
+  min-height: 0;
+
+  display: flex;
+  align-items: flex-end;
+  justify-content: center;
+
+  box-sizing: border-box;
+  padding: 0 var(--space-4);
+
+  background: var(--bg-panel);
+
+  z-index: 20;
+
+  border-top: 1px solid var(--border-hairline);
+}
+
+.gate-panels {
+  display: flex;
+  flex-direction: row;
+  align-items: stretch;
+  justify-content: safe center;
+  gap: var(--space-4);
+  width: 100%;
+  height: 100%;
+  min-width: 0;
+  min-height: 0;
+  overflow-x: auto;
+  overflow-y: hidden;
+}
+
+.gate-panel-frame {
+  flex: 0 0 auto;
+  height: calc(100% - 8px);
+  aspect-ratio: var(--panel-w) / var(--panel-h);
+  margin: 4px 0;
+  box-sizing: border-box;
+}
+
+.gate-panels::-webkit-scrollbar {
+  height: 6px;
+}
+.gate-panels::-webkit-scrollbar-thumb {
+  background: var(--border-hairline);
+  border-radius: var(--radius-pill);
+}
+.gate-panels::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+.gate-panel {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: flex-start;
+  border: 1px solid var(--border-hairline);
+  border-radius: var(--radius-md);
+  box-sizing: border-box;
+  padding: 8px;
+  background: var(--bg-void);
+}
+
+.gate-panel__title {
+  width: 100%;
+
+  text-align: center;
+
+  font-family: var(--font-ui);
+  font-size: 12px;
+  font-weight: var(--font-weight-semibold);
+
+  padding-bottom: 6px;
+
+  border-bottom: 1px solid var(--border-hairline);
+}
+
+.gate-panel__sliders {
+  display: flex;
+  flex-direction: row;
+  align-items: stretch;
+  justify-content: center;
+  gap: var(--space-2);
+  width: 100%;
+  flex: 1;
+  min-height: 0;
+}
+
+.gate-panel__slider-col {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  flex: 1 1 0;
+  min-width: 0;
+}
+
+.gate-panel__slider-label {
+  font-family: var(--font-ui);
+  font-size: 10px;
+  font-weight: var(--font-weight-medium);
+  text-align: center;
+  padding-top: 4px;
+  color: var(--text-secondary);
+}
+
+/* GateSection.css */
+.gate-panels .channel-group__items {
+  display: grid;
+  grid-template-columns: repeat(2, auto);
+  grid-template-rows: repeat(2, 1fr);
+  gap: var(--space-2);
+  align-items: stretch;
+}
diff --git a/src/components/topbar/Topbar.css b/src/components/topbar/Topbar.css
index 42e05b9..725d353 100644
--- a/src/components/topbar/Topbar.css
+++ b/src/components/topbar/Topbar.css
@@ -7,7 +7,7 @@
   -webkit-app-region: drag;
   padding-inline: var(--space-3);
   gap: var(--space-3);
-  box-sizing: border-box
+  box-sizing: border-box;
 }
 
 .logo-slot {
@@ -37,7 +37,6 @@
   -webkit-app-region: no-drag;
   border-left: 1px solid var(--border-hairline);
 
-
   scrollbar-width: thin;
   scrollbar-color: var(--border-hairline) transparent;
   scroll-behavior: smooth;
@@ -114,7 +113,7 @@
   color: var(--text-muted);
 
   font-family: var(--font-ui);
-  font-weight: 500;
+  font-weight: var(--font-weight-medium);
 
   flex-shrink: 0;
 
diff --git a/src/pages/AddDspPage/AddDspPage.css b/src/pages/AddDspPage/AddDspPage.css
new file mode 100644
index 0000000..9d60079
--- /dev/null
+++ b/src/pages/AddDspPage/AddDspPage.css
@@ -0,0 +1,69 @@
+.add-dsp-form__header {
+  margin-bottom: var(--space-5);
+}
+
+.add-dsp-form__title {
+  margin: 0;
+  font-size: var(--font-lg);
+  font-weight: var(--font-weight-semibold);
+  color: var(--text-primary);
+}
+
+.add-dsp-form__hint {
+  margin: var(--space-2) 0 0;
+  font-size: var(--font-sm);
+  color: var(--text-muted);
+}
+
+.add-dsp-form__field {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-2);
+  margin-bottom: var(--space-4);
+  flex: 1;
+  min-width: 0;
+}
+
+.add-dsp-form__row {
+  display: flex;
+  gap: var(--space-3);
+}
+
+.add-dsp-form__field label {
+  font-size: var(--font-sm);
+  color: var(--text-muted);
+}
+
+.add-dsp-form__field input,
+.add-dsp-form__field select {
+  height: var(--card-control-height);
+  padding: 0 var(--space-3);
+
+  background: var(--bg-panel);
+
+  border: var(--border-width) solid var(--border-hairline);
+  border-radius: var(--radius-sm);
+
+  color: var(--text-primary);
+  font-family: var(--font-ui);
+  font-size: var(--font-sm);
+
+  outline: none;
+  transition: border-color var(--dur-base) var(--ease-standard);
+}
+
+.add-dsp-form__field input.mono {
+  font-family: var(--font-mono);
+}
+
+.add-dsp-form__field input:focus,
+.add-dsp-form__field select:focus {
+  border-color: var(--accent-brand);
+}
+
+.add-dsp-form__actions {
+  display: flex;
+  justify-content: flex-end;
+  gap: var(--space-3);
+  margin-top: var(--space-2);
+}
diff --git a/src/pages/AddDspPage.tsx b/src/pages/AddDspPage/AddDspPage.tsx
similarity index 77%
rename from src/pages/AddDspPage.tsx
rename to src/pages/AddDspPage/AddDspPage.tsx
index 516a37f..afa0cb7 100644
--- a/src/pages/AddDspPage.tsx
+++ b/src/pages/AddDspPage/AddDspPage.tsx
@@ -1,6 +1,9 @@
 import { useState } from 'react';
-import { DSP, DSP_TYPES } from '../types/types';
-import Button from '../components/Button/Button';
+import { DSP, DSP_TYPES } from '../../types/types';
+import Button from '../../components/Button/Button';
+import Card from '../../components/Card/Card';
+
+import './AddDspPage.css';
 
 function AddDSPForm({
   onCancel,
@@ -28,13 +31,13 @@ function AddDSPForm({
   }
 
   return (
-    <div className="card form-card">
-      <div className="form-header">
-        <h1 className="panel-title">Add DSP</h1>
-        <p className="form-hint">Register a new device to control from this app.</p>
+    <Card>
+      <div className="add-dsp-form__header">
+        <h1 className="add-dsp-form__title">Add DSP</h1>
+        <p className="add-dsp-form__hint">Register a new device to control from this app.</p>
       </div>
 
-      <div className="field">
+      <div className="add-dsp-form__field">
         <label htmlFor="f-name">Name</label>
         <input
           id="f-name"
@@ -44,8 +47,8 @@ function AddDSPForm({
         />
       </div>
 
-      <div className="field-row">
-        <div className="field">
+      <div className="add-dsp-form__row">
+        <div className="add-dsp-form__field">
           <label htmlFor="f-type">Model</label>
           <select
             id="f-type"
@@ -68,7 +71,7 @@ function AddDSPForm({
           </select>
         </div>
 
-        <div className="field">
+        <div className="add-dsp-form__field">
           <label htmlFor="f-deviceid">Device ID</label>
           <input
             id="f-deviceid"
@@ -84,8 +87,8 @@ function AddDSPForm({
         </div>
       </div>
 
-      <div className="field-row">
-        <div className="field field--grow">
+      <div className="add-dsp-form__row">
+        <div className="add-dsp-form__field">
           <label htmlFor="f-ip">IP address</label>
           <input
             id="f-ip"
@@ -95,7 +98,7 @@ function AddDSPForm({
           />
         </div>
 
-        <div className="field field--narrow">
+        <div className="add-dsp-form__field">
           <label htmlFor="f-port">Port</label>
           <input
             id="f-port"
@@ -107,7 +110,7 @@ function AddDSPForm({
         </div>
       </div>
 
-      <div className="form-actions">
+      <div className="add-dsp-form__actions">
         <Button variant="ghost" onClick={onCancel}>
           Cancel
         </Button>
@@ -116,7 +119,7 @@ function AddDSPForm({
           Add DSP
         </Button>
       </div>
-    </div>
+    </Card>
   );
 }
 
diff --git a/src/pages/CreditsPage.tsx b/src/pages/CreditsPage.tsx
deleted file mode 100644
index 2ee3ec8..0000000
--- a/src/pages/CreditsPage.tsx
+++ /dev/null
@@ -1,35 +0,0 @@
-function CreditsPage() {
-  return (
-    <div className="card panel">
-      <div className="panel-header">
-        <div>
-          <h1 className="panel-title">Credits</h1>
-          <div className="panel-type">Thank you to everyone supporting the project</div>
-        </div>
-      </div>
-
-      <dl className="specs">
-        <div className="spec">
-          <dt>Developer</dt>
-          <dd>Your Name</dd>
-        </div>
-
-        <div className="spec">
-          <dt>Design</dt>
-          <dd>Open Source Community</dd>
-        </div>
-
-        <div className="spec">
-          <dt>Libraries</dt>
-          <dd className="mono">React · Tauri · TypeScript</dd>
-        </div>
-      </dl>
-
-      <div className="panel-actions">
-        <button className="btn btn-primary">Support the project</button>
-      </div>
-    </div>
-  );
-}
-
-export default CreditsPage;
diff --git a/src/pages/CreditsPage/CreditsPage.css b/src/pages/CreditsPage/CreditsPage.css
new file mode 100644
index 0000000..0b34e92
--- /dev/null
+++ b/src/pages/CreditsPage/CreditsPage.css
@@ -0,0 +1,26 @@
+.credits-page__header {
+  margin-bottom: var(--space-5);
+}
+
+.credits-page__title {
+  margin: 0;
+
+  font-size: var(--font-2xl);
+  font-weight: var(--font-weight-semibold);
+
+  color: var(--text-primary);
+}
+
+.credits-page__subtitle {
+  margin: var(--space-2) 0 0;
+
+  font-size: var(--font-sm);
+  color: var(--text-muted);
+}
+
+.credits-page__actions {
+  display: flex;
+  justify-content: flex-end;
+
+  margin-top: var(--space-2);
+}
diff --git a/src/pages/CreditsPage/CreditsPage.tsx b/src/pages/CreditsPage/CreditsPage.tsx
new file mode 100644
index 0000000..a03590d
--- /dev/null
+++ b/src/pages/CreditsPage/CreditsPage.tsx
@@ -0,0 +1,45 @@
+import Card from '../../components/Card/Card';
+import Button from '../../components/Button/Button';
+
+import './CreditsPage.css';
+
+function CreditsPage() {
+  return (
+    <Card>
+      <div className="credits-page__header">
+        <h1 className="credits-page__title">Credits</h1>
+        <p className="credits-page__subtitle">
+          Thanks to the people, projects, and communities that made this application possible.
+        </p>
+      </div>
+
+      <dl className="specs">
+        <div className="spec">
+          <dt>Developer</dt>
+          <dd>Lucas</dd>
+        </div>
+
+        <div className="spec">
+          <dt>Framework</dt>
+          <dd>React + TypeScript</dd>
+        </div>
+
+        <div className="spec">
+          <dt>Desktop Runtime</dt>
+          <dd>Tauri</dd>
+        </div>
+
+        <div className="spec">
+          <dt>Special Thanks</dt>
+          <dd></dd>
+        </div>
+      </dl>
+
+      <div className="credits-page__actions">
+        <Button variant="primary">Support the Project</Button>
+      </div>
+    </Card>
+  );
+}
+
+export default CreditsPage;
diff --git a/src/pages/HomePage/HomePage.css b/src/pages/HomePage/HomePage.css
index bad807d..b40e4c5 100644
--- a/src/pages/HomePage/HomePage.css
+++ b/src/pages/HomePage/HomePage.css
@@ -1,35 +1,14 @@
 .home-page {
   width: 100%;
   height: 100%;
-  position: relative;
 
   display: flex;
   align-items: center;
   justify-content: center;
-}
 
-.status-block {
-  display: flex;
-  align-items: center;
-  gap: var(--space-2);
-  flex-shrink: 0;
-}
+  padding: var(--space-6);
 
-.status-label {
-  font-weight: 500;
-  transition: color var(--dur-base) var(--ease-standard);
-}
-
-.status-label--connected {
-  color: var(--accent-live);
-}
-
-.status-label--connecting {
-  color: var(--accent-connecting);
-}
-
-.status-label--disconnected {
-  color: var(--text-muted);
+  box-sizing: border-box;
 }
 
 .specs {
@@ -50,18 +29,30 @@
   display: flex;
   align-items: center;
   justify-content: space-between;
+
+  gap: var(--space-4);
 }
 
 .spec dt {
   color: var(--text-muted);
+  font-size: var(--font-md);
 }
 
 .spec dd {
   margin: 0;
+
   color: var(--text-primary);
+  font-weight: var(--font-weight-medium);
+  font-size: var(--font-md);
 }
 
-.panel-actions {
+.home-panel-actions {
   display: flex;
   justify-content: flex-end;
 }
+
+.card-content {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-6);
+}
diff --git a/src/pages/HomePage/HomePage.tsx b/src/pages/HomePage/HomePage.tsx
index ea01516..22f7db8 100644
--- a/src/pages/HomePage/HomePage.tsx
+++ b/src/pages/HomePage/HomePage.tsx
@@ -2,39 +2,41 @@ import Button from '../../components/Button/Button';
 import Card from '../../components/Card/Card';
 import './HomePage.css';
 
-function HomePage({
-  dspCount,
-  connectedCount,
-  onAddDSP,
-}: {
+interface HomePageProps {
   dspCount: number;
   connectedCount: number;
   onAddDSP: () => void;
-}) {
+}
+
+function HomePage({ dspCount, connectedCount, onAddDSP }: HomePageProps) {
   return (
-    <Card>
-      <dl className="specs">
-        <div className="spec">
-          <dt>Connected</dt>
-          <dd>
-            {connectedCount} DSP{connectedCount !== 1 ? 's' : ''}
-          </dd>
-        </div>
+    <div className="home-page">
+      <Card>
+        <div className="card-content">
+          <dl className="specs">
+            <div className="spec">
+              <dt>Connected</dt>
+              <dd>
+                {connectedCount} DSP{connectedCount !== 1 ? 's' : ''}
+              </dd>
+            </div>
 
-        <div className="spec">
-          <dt>Devices</dt>
-          <dd>
-            {dspCount} DSP{dspCount !== 1 ? 's' : ''} configured
-          </dd>
-        </div>
-      </dl>
+            <div className="spec">
+              <dt>Devices</dt>
+              <dd>
+                {dspCount} DSP{dspCount !== 1 ? 's' : ''} configured
+              </dd>
+            </div>
+          </dl>
 
-      <div className="panel-actions">
-        <Button variant="primary" onClick={onAddDSP}>
-          Add a DSP
-        </Button>
-      </div>
-    </Card>
+          <div className="home-panel-actions">
+            <Button variant="primary" onClick={onAddDSP}>
+              Add a DSP
+            </Button>
+          </div>
+        </div>
+      </Card>
+    </div>
   );
 }
 
diff --git a/src/styles/App.css b/src/styles/App.css
index 1f38199..d1dad87 100644
--- a/src/styles/App.css
+++ b/src/styles/App.css
@@ -58,105 +58,15 @@ button {
     transform var(--dur-base) var(--ease-standard);
 }
 
-/* ---------- Stage / main area ---------- */
-
 .stage {
   flex: 1;
   display: flex;
   align-items: center;
   justify-content: center;
-  padding: 40px var(--space-6);
   background: var(--bg-panel);
   overflow-y: auto;
 }
 
-.empty {
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  gap: 14px;
-  color: var(--text-muted);
-  text-align: center;
-}
-
-.empty-mark {
-  font-size: 28px;
-  color: var(--border-hairline);
-}
-
-.empty p {
-  margin: 0;
-  font-size: 14px;
-}
-
-/* ---------- Form ---------- */
-
-.form-header {
-  margin-bottom: var(--space-5);
-}
-
-.form-hint {
-  margin: 6px 0 0;
-  font-size: 13px;
-  color: var(--text-muted);
-}
-
-.field {
-  display: flex;
-  flex-direction: column;
-  gap: 6px;
-  margin-bottom: var(--space-4);
-  flex: 1;
-}
-
-.field--grow {
-  flex: 2;
-}
-
-.field--narrow {
-  flex: 1;
-}
-
-.field-row {
-  display: flex;
-  gap: var(--space-3);
-}
-
-.field label {
-  font-size: 12px;
-  color: var(--text-muted);
-}
-
-.field input,
-.field select {
-  height: 36px;
-  padding: 0 10px;
-  background: var(--bg-panel);
-  border: 1px solid var(--border-hairline);
-  border-radius: var(--radius-sm);
-  color: var(--text-primary);
-  font-family: var(--font-ui);
-  font-size: 13px;
-  outline: none;
-  transition: border-color var(--dur-base) var(--ease-standard);
-}
-
-.field input.mono {
-  font-family: var(--font-mono);
-}
-
-.field input:focus,
-.field select:focus {
-  border-color: var(--accent-brand);
-}
-
-.form-actions {
-  display: flex;
-  justify-content: flex-end;
-  gap: 10px;
-  margin-top: var(--space-2);
-}
-
 /* Global scrollbar */
 ::-webkit-scrollbar {
   width: 4px;
diff --git a/src/styles/variables.css b/src/styles/variables.css
index 657028b..c30487a 100644
--- a/src/styles/variables.css
+++ b/src/styles/variables.css
@@ -23,6 +23,11 @@
   --font-xl: 1.25rem;
   --font-2xl: 1.5rem;
 
+  /* ---------- Typography ---------- */
+  --font-weight-normal: 400;
+  --font-weight-medium: 500;
+  --font-weight-semibold: 600;
+
   /* ---------- Spacing Scale ---------- */
   --space-0: 0;
   --space-1: 0.25rem;
@@ -45,16 +50,21 @@
   --radius-lg: 10px;
   --radius-pill: 999px;
 
-
-
   /* ---------- Header ---------- */
   --header-height: 50px;
   --font-size-header: 1rem;
 
   --tab-height: calc(var(--header-height) * 0.75);
 
+  /* ---------- Card ---------- */
+  --card-width: 500px;
+  --card-control-height: 36px;
+
+  /* ---------- Button ---------- */
+  --disabled-opacity: 0.45;
+
   /* ---------- SideBar ---------- */
-  --sidebar-width-collapsed: calc(var(--header-height) * 0.85 +  2 * var(--space-3));
+  --sidebar-width-collapsed: calc(var(--header-height) * 0.85 + 2 * var(--space-3));
 
   --gain-section-height: 40vh;
 
@@ -88,14 +98,10 @@
   --ease-out: cubic-bezier(0, 0, 0.2, 1);
   --ease-in: cubic-bezier(0.4, 0, 1, 1);
 
-  
-
   /* ---------- Shadow ---------- */
   --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.2);
   --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
 
-  
-
   /* ---------- Animation ---------- */
   --transition-fast: 120ms;
   --transition-base: 180ms;