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frontend/app/pages/admin/login.vue

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+<script setup lang="ts">
+import TableHeader from '~/components/parts/TableHeader.vue';
+import FixedLayout from '~/components/layouts/FixedLayout.vue';
+
+definePageMeta({ middleware: 'admin-auth' });
+
+useHead({
+  title: 'Admin — Login',
+  meta: [{ name: 'robots', content: 'noindex, nofollow', tagPriority: 'high' }]
+});
+
+const auth = useAuth();
+
+const username = ref('');
+const password = ref('');
+const error = ref('');
+const loading = ref(false);
+
+const onSubmit = async () => {
+  if (loading.value) return;
+  error.value = '';
+  loading.value = true;
+  try {
+    await auth.login(username.value, password.value);
+    await navigateTo('/admin');
+  } catch (e: any) {
+    error.value = e?.status === 401
+      ? $t('admin.login.error_invalid')
+      : $t('admin.login.error_generic');
+    password.value = '';
+  } finally {
+    loading.value = false;
+  }
+};
+</script>
+
+<template>
+  <div class="no-sprite">
+    <TableHeader />
+  </div>
+
+  <FixedLayout>
+    <Container>
+      <h1 class="admin-title">&gt; {{ $t('admin.login.title') }}</h1>
+      <p class="admin-prompt">{{ $t('admin.login.prompt') }}</p>
+
+      <form class="login-form" @submit.prevent="onSubmit">
+        <div class="field">
+          <label for="admin-user">{{ $t('admin.login.username_label') }}:</label>
+          <input
+            id="admin-user"
+            v-model="username"
+            type="text"
+            name="username"
+            autocomplete="username"
+            spellcheck="false"
+            :disabled="loading"
+            required
+          />
+        </div>
+        <div class="field">
+          <label for="admin-pass">{{ $t('admin.login.password_label') }}:</label>
+          <input
+            id="admin-pass"
+            v-model="password"
+            type="password"
+            name="password"
+            autocomplete="current-password"
+            :disabled="loading"
+            required
+          />
+        </div>
+
+        <p v-if="error" class="login-error" role="alert">✗ {{ error }}</p>
+
+        <button type="submit" class="login-btn" :disabled="loading">
+          <span v-if="!loading">&gt; {{ $t('admin.login.submit') }}</span>
+          <span v-else class="blink">{{ $t('admin.login.submitting') }}</span>
+        </button>
+      </form>
+    </Container>
+  </FixedLayout>
+  <Footer />
+</template>
+
+<style lang="scss" scoped>
+.admin-title {
+  font-family: 'Hurmit', monospace;
+  margin-bottom: 8px;
+}
+
+.admin-prompt {
+  font-size: 0.92rem;
+  color: var(--color-text);
+  opacity: 0.75;
+  margin-bottom: 24px;
+}
+
+.login-form {
+  max-width: 420px;
+}
+
+.field {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  margin-bottom: 14px;
+
+  label {
+    font-family: 'Hurmit', monospace;
+    font-size: 0.9rem;
+    color: var(--color-link);
+    min-width: 80px;
+    text-align: right;
+  }
+
+  input {
+    flex: 1;
+    font-family: 'Hurmit', monospace;
+    font-size: 0.95rem;
+    color: var(--color-text);
+    background: var(--color-background);
+    border: 1px solid var(--color-border-color);
+    padding: 8px 10px;
+    outline: none;
+    min-width: 0;
+
+    &:focus {
+      border-color: var(--color-link);
+      box-shadow: 2px -2px 0 0 var(--color-frame-glow);
+    }
+  }
+}
+
+.login-error {
+  font-family: 'Hurmit', monospace;
+  font-size: 0.85rem;
+  color: #e05c5c;
+  margin: 4px 0 12px 90px;
+}
+
+.login-btn {
+  margin-left: 90px;
+  font-family: 'Hurmit', monospace;
+  font-size: 0.9rem;
+  color: var(--color-background);
+  background: var(--color-link);
+  border: none;
+  padding: 8px 18px;
+  cursor: pointer;
+  transition: all 120ms steps(3);
+
+  &:hover:not(:disabled) {
+    background: var(--color-text);
+  }
+
+  &:disabled {
+    opacity: 0.6;
+    cursor: wait;
+  }
+}
+
+.blink {
+  animation: blink 1s step-end infinite;
+}
+
+@keyframes blink {
+  0%, 50%, 100% { opacity: 1; }
+  25%, 75% { opacity: 0; }
+}
+
+@media screen and (max-width: 600px) {
+  .field {
+    flex-direction: column;
+    align-items: stretch;
+    gap: 4px;
+
+    label {
+      text-align: left;
+      min-width: 0;
+    }
+  }
+
+  .login-error,
+  .login-btn {
+    margin-left: 0;
+  }
+}
+</style>
+
+<style lang="scss">
+.no-sprite .undertable-wrapper {
+  display: none;
+}
+</style>