diff --git a/app/static/styles.css b/app/static/styles.css
index efc10e7..0e9a7d2 100644
--- a/app/static/styles.css
+++ b/app/static/styles.css
@@ -24,7 +24,7 @@
 
 body {
   font-family: "Pretendard", "Segoe UI", "Apple SD Gothic Neo", system-ui, sans-serif;
-  font-size: 15px;
+  font-size: 16px;
   color: var(--text);
   background: var(--bg);
   min-height: 100vh;
@@ -88,7 +88,7 @@ a { color: inherit; text-decoration: none; }
 .brand-logo-mark svg { color: #fff; }
 
 .brand-name {
-  font-size: 20px;
+  font-size: 22px;
   font-weight: 700;
   color: #fff;
   letter-spacing: -.3px;
@@ -114,19 +114,25 @@ a { color: inherit; text-decoration: none; }
 }
 
 .brand-headline {
-  font-size: clamp(28px, 3.2vw, 42px);
+  font-size: clamp(32px, 3.6vw, 48px);
   font-weight: 700;
   color: #fff;
-  line-height: 1.25;
+  line-height: 1.2;
   letter-spacing: -.5px;
-  margin-bottom: 16px;
+  margin-bottom: 20px;
 }
 
 .brand-desc {
   font-size: 15px;
   color: rgba(255,255,255,.55);
-  line-height: 1.7;
-  max-width: 380px;
+  line-height: 1.8;
+}
+
+.brand-desc-nowrap {
+  font-size: 14px;
+  color: rgba(255,255,255,.55);
+  white-space: nowrap;
+  margin-top: 4px;
 }
 
 .brand-divider {
@@ -166,16 +172,16 @@ a { color: inherit; text-decoration: none; }
 }
 
 .form-title {
-  font-size: clamp(22px, 2.8vw, 30px);
+  font-size: clamp(24px, 3vw, 32px);
   font-weight: 700;
   color: var(--navy);
   letter-spacing: -.4px;
   line-height: 1.2;
-  margin-bottom: 8px;
+  margin-bottom: 10px;
 }
 
 .form-subtitle {
-  font-size: 14px;
+  font-size: 15px;
   color: var(--muted);
   line-height: 1.6;
   margin-bottom: 36px;
@@ -541,16 +547,16 @@ a { color: inherit; text-decoration: none; }
 }
 
 .card-title {
-  font-size: 17px;
+  font-size: 19px;
   font-weight: 700;
   color: var(--navy);
   letter-spacing: -.3px;
   line-height: 1.35;
-  margin-bottom: 8px;
+  margin-bottom: 10px;
 }
 
 .card-desc {
-  font-size: 13px;
+  font-size: 14px;
   color: var(--muted);
   line-height: 1.6;
   flex: 1;
@@ -578,6 +584,107 @@ a { color: inherit; text-decoration: none; }
 .menu-card:hover .card-link { gap: 8px; }
 
 
+/* ════════════════════════════════════════════════════
+   브랜드 패널 — 움직이는 도형
+   ════════════════════════════════════════════════════ */
+
+.brand-shapes {
+  position: absolute;
+  inset: 0;
+  overflow: hidden;
+  pointer-events: none;
+}
+
+.shape {
+  position: absolute;
+  border-radius: 50%;
+}
+
+/* 큰 원 테두리 — 우측 상단 */
+.shape-1 {
+  width: 380px;
+  height: 380px;
+  border: 1.5px solid rgba(30, 86, 160, .25);
+  border-radius: 50%;
+  top: -100px;
+  right: -80px;
+  animation: shapeFloat1 28s ease-in-out infinite;
+}
+
+/* 중간 다이아몬드 — 좌측 하단 */
+.shape-2 {
+  width: 140px;
+  height: 140px;
+  background: rgba(30, 86, 160, .1);
+  border-radius: 24px;
+  bottom: 100px;
+  left: -50px;
+  animation: shapeFloat2 22s ease-in-out infinite;
+}
+
+/* 작은 원 — 중앙 우측 */
+.shape-3 {
+  width: 72px;
+  height: 72px;
+  border: 1.5px solid rgba(255, 255, 255, .12);
+  border-radius: 50%;
+  top: 42%;
+  right: 14%;
+  animation: shapeFloat3 19s ease-in-out infinite;
+}
+
+/* 큰 둥근 사각형 테두리 — 하단 중앙 */
+.shape-4 {
+  width: 220px;
+  height: 220px;
+  border: 1px solid rgba(30, 86, 160, .2);
+  border-radius: 40px;
+  bottom: -70px;
+  right: 18%;
+  animation: shapeFloat4 25s ease-in-out infinite;
+}
+
+/* 아주 작은 원 — 상단 좌측 */
+.shape-5 {
+  width: 40px;
+  height: 40px;
+  background: rgba(30, 86, 160, .18);
+  border-radius: 50%;
+  top: 22%;
+  left: 18%;
+  animation: shapeFloat5 16s ease-in-out infinite;
+}
+
+@keyframes shapeFloat1 {
+  0%, 100% { transform: translate(0, 0); }
+  25%       { transform: translate(-18px, 28px); }
+  50%       { transform: translate(12px, 18px); }
+  75%       { transform: translate(-8px, -14px); }
+}
+
+@keyframes shapeFloat2 {
+  0%, 100% { transform: rotate(45deg) translate(0, 0); }
+  33%       { transform: rotate(62deg) translate(18px, -22px); }
+  66%       { transform: rotate(32deg) translate(-14px, 18px); }
+}
+
+@keyframes shapeFloat3 {
+  0%, 100% { transform: translate(0, 0); }
+  50%       { transform: translate(22px, -28px); }
+}
+
+@keyframes shapeFloat4 {
+  0%, 100% { transform: rotate(12deg) translate(0, 0); }
+  40%       { transform: rotate(22deg) translate(-18px, -12px); }
+  80%       { transform: rotate(4deg)  translate(14px, 8px); }
+}
+
+@keyframes shapeFloat5 {
+  0%, 100% { transform: translate(0, 0) scale(1); }
+  33%       { transform: translate(14px, -18px) scale(1.15); }
+  66%       { transform: translate(-10px, 12px) scale(0.9); }
+}
+
 /* ════════════════════════════════════════════════════
    반응형
    ════════════════════════════════════════════════════ */
diff --git a/app/templates/denied.html b/app/templates/denied.html
index ee53a66..402de8a 100644
--- a/app/templates/denied.html
+++ b/app/templates/denied.html
@@ -11,6 +11,15 @@
 
       <!-- 좌측: 브랜드 패널 -->
       <aside class="brand-panel">
+        <!-- 움직이는 배경 도형 -->
+        <div class="brand-shapes" aria-hidden="true">
+          <div class="shape shape-1"></div>
+          <div class="shape shape-2"></div>
+          <div class="shape shape-3"></div>
+          <div class="shape shape-4"></div>
+          <div class="shape shape-5"></div>
+        </div>
+
         <div class="brand-logo">
           <div class="brand-logo-mark">
             <svg width="20" height="20" viewBox="0 0 24 24" fill="none"
@@ -21,19 +30,17 @@
               <rect x="14" y="14" width="7" height="7" rx="1"/>
             </svg>
           </div>
-          <span class="brand-name">DBX Corp</span>
+          <span class="brand-name">DBX Corporation</span>
         </div>
 
         <div class="brand-body">
           <p class="brand-tag">Internal Portal</p>
           <h1 class="brand-headline">업무 포털<br>시스템</h1>
-          <p class="brand-desc">
-            DBX Corp 임직원 전용 업무 통합 포털입니다.
-          </p>
+          <p class="brand-desc">DBX Corporation 임직원 전용 업무 통합 포털입니다.</p>
           <div class="brand-divider"></div>
         </div>
 
-        <p class="brand-footer">© 2026 DBX Corp. All rights reserved.</p>
+        <p class="brand-footer">© 2026 DBX Corporation. All rights reserved.</p>
       </aside>
 
       <!-- 우측: 오류 패널 -->
diff --git a/app/templates/login.html b/app/templates/login.html
index e5d6abd..5664559 100644
--- a/app/templates/login.html
+++ b/app/templates/login.html
@@ -11,6 +11,15 @@
 
       <!-- 좌측: 브랜드 패널 -->
       <aside class="brand-panel">
+        <!-- 움직이는 배경 도형 -->
+        <div class="brand-shapes" aria-hidden="true">
+          <div class="shape shape-1"></div>
+          <div class="shape shape-2"></div>
+          <div class="shape shape-3"></div>
+          <div class="shape shape-4"></div>
+          <div class="shape shape-5"></div>
+        </div>
+
         <div class="brand-logo">
           <div class="brand-logo-mark">
             <svg width="20" height="20" viewBox="0 0 24 24" fill="none"
@@ -21,26 +30,24 @@
               <rect x="14" y="14" width="7" height="7" rx="1"/>
             </svg>
           </div>
-          <span class="brand-name">DBX Corp</span>
+          <span class="brand-name">DBX Corporation</span>
         </div>
 
         <div class="brand-body">
           <p class="brand-tag">Internal Portal</p>
           <h1 class="brand-headline">업무 포털<br>시스템</h1>
-          <p class="brand-desc">
-            DBX Corp 임직원 전용 업무 통합 포털입니다.<br>
-            회사 Google Workspace 계정으로 인증 후 이용하실 수 있습니다.
-          </p>
+          <p class="brand-desc">DBX Corporation 임직원 전용 업무 통합 포털입니다.</p>
+          <p class="brand-desc-nowrap">회사 Google Workspace 계정으로 인증 후 이용하실 수 있습니다.</p>
           <div class="brand-divider"></div>
         </div>
 
-        <p class="brand-footer">© 2026 DBX Corp. All rights reserved.</p>
+        <p class="brand-footer">© 2026 DBX Corporation. All rights reserved.</p>
       </aside>
 
       <!-- 우측: 로그인 폼 -->
       <main class="form-panel">
         <div class="form-box">
-          <p class="form-eyebrow">DBX Corp</p>
+          <p class="form-eyebrow">DBX Corporation</p>
           <h2 class="form-title">업무 포털 로그인</h2>
           <p class="form-subtitle">
             회사 Google Workspace 계정으로 로그인하세요.<br>
diff --git a/app/templates/main.html b/app/templates/main.html
index 99fa4bd..18b931a 100644
--- a/app/templates/main.html
+++ b/app/templates/main.html
@@ -3,7 +3,7 @@
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
-    <title>업무 포털 — DBX Corp</title>
+    <title>업무 포털 — DBX Corporation</title>
     <link rel="stylesheet" href="/static/styles.css" />
   </head>
   <body>
@@ -21,7 +21,7 @@
           </svg>
         </div>
         <div class="header-brand-text">
-          <span class="header-company">DBX Corp</span>
+          <span class="header-company">DBX Corporation</span>
           <span class="header-portal">업무 포털</span>
         </div>
       </div>