body {
  font-family: sans-serif;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  color: #333;
}
header, footer {
  background: #004080;
  color: white;
  padding: 1rem;
}
nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 1rem;
}
nav a {
  color: white;
  text-decoration: none;
}
.posters {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}
.poster img {
  max-width: 100%;
  height: auto;
  border: 1px solid #ccc;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin: 1rem;
}
form label {
  display: block;
  margin-bottom: 0.5rem;
}
form input, form textarea, form select {
  width: 100%;
  box-sizing: border-box;
}
@media screen and (max-width: 600px) {
  nav ul {
    flex-direction: column;
  }
  .grid {
    grid-template-columns: 1fr;
  }
}




/* ログイン画面専用スタイル */
.login-body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", sans-serif;
  background: linear-gradient(120deg, #b2ebf2, #fce4ec);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.login-container {
  background: white;
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  width: 90%;
  max-width: 400px;
  box-sizing: border-box;
  text-align: center;
}

.login-container h2 {
  margin-bottom: 1.5rem;
  color: #444;
}

.login-container form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.login-container label {
  text-align: left;
  font-weight: bold;
  color: #333;
}

.login-container input {
  width: 100%;
  padding: 0.6rem;
  margin-top: 0.3rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 1rem;
}

.login-container button {
  padding: 0.8rem;
  background-color: #26a69a;
  color: white;
  font-size: 1rem;
  font-weight: bold;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.login-container button:hover {
  background-color: #00897b;
}

.error {
  color: #e53935;
  font-weight: bold;
  margin-bottom: 1rem;
}


.manage-body {
  background: linear-gradient(120deg, #b2ebf2, #fce4ec);
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", sans-serif;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
}

.manage-container {
  margin-top: 40px;
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  max-width: 1200px;
  width: 90%;
}

.manage-container h2 {
  margin-bottom: 1rem;
  color: #333;
}

.button-group {
  display: flex;
  gap: 1rem;
  margin-bottom: 20px;
}

.btn-primary, .btn-secondary, .btn-small, .btn-danger {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: bold;
  cursor: pointer;
  border: none;
  transition: background-color 0.3s ease;
}

.btn-primary {
  background-color: #26a69a;
  color: white;
}

.btn-secondary {
  background-color: #42a5f5;
  color: white;
}

.btn-small {
  background-color: #9e9e9e;
  color: white;
  margin: 2px;
}

.btn-danger {
  background-color: #ef5350;
  color: white;
  margin: 2px;
}

.btn-primary:hover { background-color: #00897b; }
.btn-secondary:hover { background-color: #1e88e5; }
.btn-small:hover { background-color: #616161; }
.btn-danger:hover { background-color: #d32f2f; }

.styled-table {
  width: 100%;
  border-collapse: collapse;
  text-align: center;
}

.styled-table th, .styled-table td {
  border: 1px solid #ccc;
  padding: 10px;
}

.styled-table th {
  background-color: #f0f0f0;
}

.table-scroll {
  overflow-x: auto;
}
/* ボタンカラーを統一（青） */
.btn-small {
  background-color: #42a5f5;  /* 青色 */
  color: white;
  margin: 2px;
  border: none;
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.btn-small:hover {
  background-color: #1e88e5;  /* 濃い青 */
}


    .card {
      background: #fff;
      padding: 30px;
      border-radius: 12px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      max-width: 500px;
      width: 90%;
      text-align: center;
    }

a.button-back {
  display: inline-block;
  padding: 10px 100px;
  background-color: #42a5f5;
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}
a.button-back:hover {
  background-color: #1e88e5;
}

.form-control {
  width: 100%;
  padding: 10px;
  font-size: 1rem;
  border-radius: 6px;
  border: 1px solid #ccc;
  box-sizing: border-box;
}

.admin {
      background: #002c6e !important;
}


.detail-body {
  background: linear-gradient(120deg, #b2ebf2, #fce4ec);
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", sans-serif;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
}

.detail-container {
  margin: 40px 0;
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  max-width: 700px;
  width: 90%;
}
.detail-container .img-container {
  width: 100%;
  aspect-ratio: 1 / 1; /* 正方形にする */
  background: #f9f9f9;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.detail-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.manage-container h2 {
  margin-bottom: 1rem;
  color: #333;
}