diff --git a/app/pages/login.vue b/app/pages/login.vue
index cb9d3f8..2ca4a93 100644
--- a/app/pages/login.vue
+++ b/app/pages/login.vue
@@ -2,40 +2,110 @@
 definePageMeta({ layout: false });
 
 const supabase = useSupabaseClient();
-const email = ref("");
+
+type ViewMode = 'auth' | 'forgot-password';
+
+const email = ref('');
+const password = ref('');
+const passwordConfirm = ref('');
 const loading = ref(false);
-const message = ref("");
-const error = ref("");
+const message = ref('');
+const error = ref('');
+const activeTab = ref<'login' | 'signup'>('login');
+const viewMode = ref<ViewMode>('auth');
 
-async function sendMagicLink() {
-  if (!email.value) return;
+function resetForm() {
+  email.value = '';
+  password.value = '';
+  passwordConfirm.value = '';
+  error.value = '';
+  message.value = '';
+}
+
+function translateAuthError(msg: string): string {
+  if (msg.includes('Invalid login credentials')) return '이메일 또는 비밀번호가 올바르지 않습니다.';
+  if (msg.includes('Email not confirmed')) return '이메일 확인이 완료되지 않았습니다. 받은 편지함을 확인해주세요.';
+  if (msg.includes('User already registered')) return '이미 가입된 이메일입니다. 로그인을 시도해주세요.';
+  if (msg.includes('Password should be at least 6 characters')) return '비밀번호는 최소 6자 이상이어야 합니다.';
+  return msg;
+}
+
+async function signIn() {
+  if (!email.value || !password.value) return;
   loading.value = true;
-  error.value = "";
-  message.value = "";
+  error.value = '';
+  message.value = '';
 
-  const { error: err } = await supabase.auth.signInWithOtp({
+  const { error: err } = await supabase.auth.signInWithPassword({
     email: email.value,
-    options: {
-      emailRedirectTo: `${window.location.origin}/confirm`,
-    },
+    password: password.value,
   });
 
   loading.value = false;
   if (err) {
-    error.value = err.message;
+    error.value = translateAuthError(err.message);
   } else {
-    message.value = `${email.value}로 로그인 링크를 전송했습니다. 이메일을 확인해주세요.`;
+    await navigateTo('/');
+  }
+}
+
+async function signUp() {
+  if (!email.value || !password.value) return;
+  if (password.value !== passwordConfirm.value) {
+    error.value = '비밀번호가 일치하지 않습니다.';
+    return;
+  }
+
+  loading.value = true;
+  error.value = '';
+  message.value = '';
+
+  const { data, error: err } = await supabase.auth.signUp({
+    email: email.value,
+    password: password.value,
+  });
+
+  loading.value = false;
+  if (err) {
+    error.value = translateAuthError(err.message);
+  } else if (data.session) {
+    await navigateTo('/');
+  } else {
+    message.value = `${email.value}로 확인 이메일을 전송했습니다. 이메일을 확인한 후 로그인해주세요.`;
+  }
+}
+
+async function sendResetEmail() {
+  if (!email.value) return;
+  loading.value = true;
+  error.value = '';
+  message.value = '';
+
+  const { error: err } = await supabase.auth.resetPasswordForEmail(email.value, {
+    redirectTo: `${window.location.origin}/confirm`,
+  });
+
+  loading.value = false;
+  if (err) {
+    error.value = translateAuthError(err.message);
+  } else {
+    message.value = `${email.value}로 비밀번호 재설정 링크를 전송했습니다.`;
   }
 }
 
 async function signInWithGoogle() {
   await supabase.auth.signInWithOAuth({
-    provider: "google",
+    provider: 'google',
     options: {
       redirectTo: `${window.location.origin}/confirm`,
     },
   });
 }
+
+const tabs = [
+  { label: '로그인', value: 'login' },
+  { label: '회원가입', value: 'signup' },
+];
 </script>
 
 <template>
@@ -65,9 +135,7 @@ async function signInWithGoogle() {
           >
             <UIcon name="i-lucide-tent" class="text-white text-xl" />
           </div>
-          <span class="text-white text-xl font-bold tracking-tight"
-            >CampGear</span
-          >
+          <span class="text-white text-xl font-bold tracking-tight">CampGear</span>
         </div>
 
         <!-- 메인 카피 -->
@@ -77,8 +145,7 @@ async function signInWithGoogle() {
               캠핑의 모든 것,<br />한 곳에서 관리하세요
             </h2>
             <p class="text-green-100 text-lg leading-relaxed">
-              장비 구매부터 중고 거래까지,<br />스마트한 캠핑 장비 관리를
-              경험하세요.
+              장비 구매부터 중고 거래까지,<br />스마트한 캠핑 장비 관리를 경험하세요.
             </p>
           </div>
 
@@ -98,25 +165,19 @@ async function signInWithGoogle() {
               >
                 <UIcon :name="feature.icon" class="text-white text-sm" />
               </div>
-              <span class="text-green-50 text-sm font-medium">{{
-                feature.text
-              }}</span>
+              <span class="text-green-50 text-sm font-medium">{{ feature.text }}</span>
             </div>
           </div>
         </div>
 
         <!-- 하단 문구 -->
         <div class="relative z-10">
-          <p class="text-green-200 text-sm">
-            &copy; 2026 CampGear. All rights reserved.
-          </p>
+          <p class="text-green-200 text-sm">&copy; 2026 CampGear. All rights reserved.</p>
         </div>
       </div>
 
       <!-- 우측 로그인 폼 -->
-      <div
-        class="flex-1 flex items-center justify-center p-6 sm:p-12 bg-white dark:bg-gray-950"
-      >
+      <div class="flex-1 flex items-center justify-center p-6 sm:p-12 bg-white dark:bg-gray-950">
         <div class="w-full max-w-sm space-y-8">
           <!-- 모바일용 로고 -->
           <div class="lg:hidden text-center space-y-2">
@@ -125,51 +186,20 @@ async function signInWithGoogle() {
             >
               <UIcon name="i-lucide-tent" class="text-white text-2xl" />
             </div>
-            <h1 class="text-2xl font-bold text-gray-900 dark:text-white">
-              CampGear
-            </h1>
-            <p class="text-gray-500 dark:text-gray-400 text-sm">
-              캠핑 장비 관리 앱
-            </p>
+            <h1 class="text-2xl font-bold text-gray-900 dark:text-white">CampGear</h1>
+            <p class="text-gray-500 dark:text-gray-400 text-sm">캠핑 장비 관리 앱</p>
           </div>
 
-          <!-- 폼 헤더 -->
-          <div class="space-y-1">
-            <h2 class="text-2xl font-bold text-gray-900 dark:text-white">
-              로그인
-            </h2>
-            <p class="text-gray-500 dark:text-gray-400 text-sm">
-              계속하려면 이메일을 입력하거나 Google 계정으로 로그인하세요.
-            </p>
-          </div>
-
-          <!-- 로그인 폼 -->
-          <div class="space-y-4">
-            <!-- Google 로그인 -->
-            <UButton
-              color="neutral"
-              variant="outline"
-              class="w-full"
-              size="lg"
-              @click="signInWithGoogle"
-            >
-              <template #leading>
-                <UIcon name="i-simple-icons-google" class="text-base" />
-              </template>
-              Google로 계속하기
-            </UButton>
-
-            <!-- 구분선 -->
-            <div class="relative flex items-center gap-3">
-              <div class="flex-1 h-px bg-gray-200 dark:bg-gray-800" />
-              <span class="text-xs text-gray-400 dark:text-gray-500 font-medium"
-                >또는 이메일로</span
-              >
-              <div class="flex-1 h-px bg-gray-200 dark:bg-gray-800" />
+          <!-- 비밀번호 재설정 뷰 -->
+          <template v-if="viewMode === 'forgot-password'">
+            <div class="space-y-1">
+              <h2 class="text-2xl font-bold text-gray-900 dark:text-white">비밀번호 재설정</h2>
+              <p class="text-gray-500 dark:text-gray-400 text-sm">
+                가입한 이메일을 입력하면 재설정 링크를 보내드립니다.
+              </p>
             </div>
 
-            <!-- 이메일 입력 -->
-            <div class="space-y-3">
+            <div class="space-y-4">
               <UFormField name="email">
                 <UInput
                   v-model="email"
@@ -178,7 +208,7 @@ async function signInWithGoogle() {
                   size="lg"
                   class="w-full"
                   :ui="{ base: 'w-full' }"
-                  @keyup.enter="sendMagicLink"
+                  @keyup.enter="sendResetEmail"
                 >
                   <template #leading>
                     <UIcon name="i-lucide-mail" class="text-gray-400" />
@@ -191,64 +221,236 @@ async function signInWithGoogle() {
                 class="w-full"
                 size="lg"
                 :loading="loading"
-                @click="sendMagicLink"
+                @click="sendResetEmail"
               >
-                <template #leading>
-                  <UIcon
-                    v-if="!loading"
-                    name="i-lucide-send"
-                    class="text-base"
-                  />
-                </template>
-                매직 링크 전송
+                재설정 이메일 발송
               </UButton>
+
+              <button
+                class="w-full text-sm text-center text-green-600 dark:text-green-400 hover:underline"
+                @click="() => { viewMode = 'auth'; resetForm(); }"
+              >
+                로그인으로 돌아가기
+              </button>
+
+              <!-- 피드백 메시지 -->
+              <Transition
+                enter-active-class="transition duration-300 ease-out"
+                enter-from-class="opacity-0 -translate-y-2"
+                enter-to-class="opacity-100 translate-y-0"
+              >
+                <UAlert
+                  v-if="message"
+                  color="success"
+                  icon="i-lucide-check-circle"
+                  :description="message"
+                  class="mt-2"
+                />
+              </Transition>
+              <Transition
+                enter-active-class="transition duration-300 ease-out"
+                enter-from-class="opacity-0 -translate-y-2"
+                enter-to-class="opacity-100 translate-y-0"
+              >
+                <UAlert
+                  v-if="error"
+                  color="error"
+                  icon="i-lucide-alert-circle"
+                  :description="error"
+                  class="mt-2"
+                />
+              </Transition>
+            </div>
+          </template>
+
+          <!-- 인증 뷰 (로그인/회원가입) -->
+          <template v-else>
+            <div class="space-y-1">
+              <h2 class="text-2xl font-bold text-gray-900 dark:text-white">시작하기</h2>
+              <p class="text-gray-500 dark:text-gray-400 text-sm">
+                이메일 또는 Google 계정으로 로그인하세요.
+              </p>
             </div>
 
-            <!-- 피드백 메시지 -->
-            <Transition
-              enter-active-class="transition duration-300 ease-out"
-              enter-from-class="opacity-0 -translate-y-2"
-              enter-to-class="opacity-100 translate-y-0"
-            >
-              <UAlert
-                v-if="message"
-                color="success"
-                icon="i-lucide-check-circle"
-                :description="message"
-                class="mt-2"
-              />
-            </Transition>
-            <Transition
-              enter-active-class="transition duration-300 ease-out"
-              enter-from-class="opacity-0 -translate-y-2"
-              enter-to-class="opacity-100 translate-y-0"
-            >
-              <UAlert
-                v-if="error"
-                color="error"
-                icon="i-lucide-alert-circle"
-                :description="error"
-                class="mt-2"
-              />
-            </Transition>
-          </div>
+            <div class="space-y-4">
+              <!-- Google 로그인 -->
+              <UButton
+                color="neutral"
+                variant="outline"
+                class="w-full"
+                size="lg"
+                @click="signInWithGoogle"
+              >
+                <template #leading>
+                  <UIcon name="i-simple-icons-google" class="text-base" />
+                </template>
+                Google로 계속하기
+              </UButton>
+
+              <!-- 구분선 -->
+              <div class="relative flex items-center gap-3">
+                <div class="flex-1 h-px bg-gray-200 dark:bg-gray-800" />
+                <span class="text-xs text-gray-400 dark:text-gray-500 font-medium">또는 이메일로</span>
+                <div class="flex-1 h-px bg-gray-200 dark:bg-gray-800" />
+              </div>
+
+              <!-- 탭 (로그인/회원가입) -->
+              <UTabs
+                v-model="activeTab"
+                :items="tabs"
+                @update:model-value="resetForm"
+              >
+                <template #content="{ item }">
+                  <!-- 로그인 탭 -->
+                  <div v-if="item.value === 'login'" class="space-y-3 pt-4">
+                    <UFormField name="email">
+                      <UInput
+                        v-model="email"
+                        type="email"
+                        placeholder="your@email.com"
+                        size="lg"
+                        class="w-full"
+                        :ui="{ base: 'w-full' }"
+                      >
+                        <template #leading>
+                          <UIcon name="i-lucide-mail" class="text-gray-400" />
+                        </template>
+                      </UInput>
+                    </UFormField>
+
+                    <UFormField name="password">
+                      <UInput
+                        v-model="password"
+                        type="password"
+                        placeholder="비밀번호"
+                        size="lg"
+                        class="w-full"
+                        :ui="{ base: 'w-full' }"
+                        @keyup.enter="signIn"
+                      >
+                        <template #leading>
+                          <UIcon name="i-lucide-lock" class="text-gray-400" />
+                        </template>
+                      </UInput>
+                    </UFormField>
+
+                    <UButton
+                      color="primary"
+                      class="w-full"
+                      size="lg"
+                      :loading="loading"
+                      @click="signIn"
+                    >
+                      로그인
+                    </UButton>
+
+                    <div class="text-center">
+                      <button
+                        class="text-sm text-green-600 dark:text-green-400 hover:underline"
+                        @click="() => { viewMode = 'forgot-password'; resetForm(); }"
+                      >
+                        비밀번호를 잊으셨나요?
+                      </button>
+                    </div>
+                  </div>
+
+                  <!-- 회원가입 탭 -->
+                  <div v-else-if="item.value === 'signup'" class="space-y-3 pt-4">
+                    <UFormField name="email">
+                      <UInput
+                        v-model="email"
+                        type="email"
+                        placeholder="your@email.com"
+                        size="lg"
+                        class="w-full"
+                        :ui="{ base: 'w-full' }"
+                      >
+                        <template #leading>
+                          <UIcon name="i-lucide-mail" class="text-gray-400" />
+                        </template>
+                      </UInput>
+                    </UFormField>
+
+                    <UFormField name="password">
+                      <UInput
+                        v-model="password"
+                        type="password"
+                        placeholder="비밀번호 (최소 6자)"
+                        size="lg"
+                        class="w-full"
+                        :ui="{ base: 'w-full' }"
+                      >
+                        <template #leading>
+                          <UIcon name="i-lucide-lock" class="text-gray-400" />
+                        </template>
+                      </UInput>
+                    </UFormField>
+
+                    <UFormField name="passwordConfirm">
+                      <UInput
+                        v-model="passwordConfirm"
+                        type="password"
+                        placeholder="비밀번호 확인"
+                        size="lg"
+                        class="w-full"
+                        :ui="{ base: 'w-full' }"
+                        @keyup.enter="signUp"
+                      >
+                        <template #leading>
+                          <UIcon name="i-lucide-lock" class="text-gray-400" />
+                        </template>
+                      </UInput>
+                    </UFormField>
+
+                    <UButton
+                      color="primary"
+                      class="w-full"
+                      size="lg"
+                      :loading="loading"
+                      @click="signUp"
+                    >
+                      회원가입
+                    </UButton>
+                  </div>
+                </template>
+              </UTabs>
+
+              <!-- 피드백 메시지 -->
+              <Transition
+                enter-active-class="transition duration-300 ease-out"
+                enter-from-class="opacity-0 -translate-y-2"
+                enter-to-class="opacity-100 translate-y-0"
+              >
+                <UAlert
+                  v-if="message"
+                  color="success"
+                  icon="i-lucide-check-circle"
+                  :description="message"
+                  class="mt-2"
+                />
+              </Transition>
+              <Transition
+                enter-active-class="transition duration-300 ease-out"
+                enter-from-class="opacity-0 -translate-y-2"
+                enter-to-class="opacity-100 translate-y-0"
+              >
+                <UAlert
+                  v-if="error"
+                  color="error"
+                  icon="i-lucide-alert-circle"
+                  :description="error"
+                  class="mt-2"
+                />
+              </Transition>
+            </div>
+          </template>
 
           <!-- 안내 문구 -->
-          <p
-            class="text-center text-xs text-gray-400 dark:text-gray-500 leading-relaxed"
-          >
+          <p class="text-center text-xs text-gray-400 dark:text-gray-500 leading-relaxed">
             로그인 시 CampGear의
-            <a
-              href="#"
-              class="text-green-600 dark:text-green-400 hover:underline"
-              >이용약관</a
-            >
+            <a href="#" class="text-green-600 dark:text-green-400 hover:underline">이용약관</a>
             및
-            <a
-              href="#"
-              class="text-green-600 dark:text-green-400 hover:underline"
-              >개인정보처리방침</a
-            >에 동의하게 됩니다.
+            <a href="#" class="text-green-600 dark:text-green-400 hover:underline">개인정보처리방침</a>에 동의하게 됩니다.
           </p>
         </div>
       </div>