/* ページ全体のリセット */
body {
    margin: 0;
    font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
    background: linear-gradient(135deg, #74ebd5 0%, #9face6 100%);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ログインボックス */
.login-container {
    background: #fff;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    width: 320px;
    text-align: center;
    animation: fadeIn 0.8s ease-in-out;
}

/* タイトル */
.login-container h2 {
    margin-bottom: 20px;
    color: #333;
    font-size: 22px;
}

/* ラベルと入力欄 */
.login-container label {
    display: block;
    margin-bottom: 15px;
    text-align: left;
    font-weight: bold;
    color: #444;
}

.login-container input {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.login-container input:focus {
    border-color: #6c63ff;
    outline: none;
}

/* ボタン */
.login-container button {
    margin-top: 15px;
    width: 100%;
    padding: 12px;
    background: #6c63ff;
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

.login-container button:hover {
    background: #5548c8;
}